From 667bf2effedf033d9b633dc9193d0b92dd8696c6 Mon Sep 17 00:00:00 2001 From: Ivo Horak Date: Fri, 10 Jan 2025 13:31:01 +0100 Subject: [PATCH 01/12] Add GraalPy Apache Arrow guide --- graalpy/graalpy-apache-arrow-guide/.gitignore | 38 ++++++++++ graalpy/graalpy-apache-arrow-guide/pom.xml | 76 +++++++++++++++++++ .../src/data_analysis.py | 10 +++ .../com/example/DataAnalysisPyModule.java | 9 +++ .../main/java/com/example/DownloadUtils.java | 32 ++++++++ .../src/main/java/com/example/Main.java | 49 ++++++++++++ 6 files changed, 214 insertions(+) create mode 100644 graalpy/graalpy-apache-arrow-guide/.gitignore create mode 100644 graalpy/graalpy-apache-arrow-guide/pom.xml create mode 100644 graalpy/graalpy-apache-arrow-guide/src/data_analysis.py create mode 100644 graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/DataAnalysisPyModule.java create mode 100644 graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/DownloadUtils.java create mode 100644 graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java diff --git a/graalpy/graalpy-apache-arrow-guide/.gitignore b/graalpy/graalpy-apache-arrow-guide/.gitignore new file mode 100644 index 00000000..5ff6309b --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/.gitignore @@ -0,0 +1,38 @@ +target/ +!.mvn/wrapper/maven-wrapper.jar +!**/src/main/**/target/ +!**/src/test/**/target/ + +### IntelliJ IDEA ### +.idea/modules.xml +.idea/jarRepositories.xml +.idea/compiler.xml +.idea/libraries/ +*.iws +*.iml +*.ipr + +### Eclipse ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ +build/ +!**/src/main/**/build/ +!**/src/test/**/build/ + +### VS Code ### +.vscode/ + +### Mac OS ### +.DS_Store \ No newline at end of file diff --git a/graalpy/graalpy-apache-arrow-guide/pom.xml b/graalpy/graalpy-apache-arrow-guide/pom.xml new file mode 100644 index 00000000..27886682 --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/pom.xml @@ -0,0 +1,76 @@ + + + 4.0.0 + + com.example + graalpy-apache-arrow-guide + 1.0-SNAPSHOT + + + 23 + 23 + UTF-8 + 17.0.0 + + 25.0.0-SNAPSHOT + + + + + + org.apache.arrow + arrow-vector + ${arrow.version} + + + org.apache.arrow + arrow-c-data + ${arrow.version} + + + org.apache.arrow + arrow-memory-unsafe + ${arrow.version} + + + + + org.graalvm.python + python-community + ${python.version} + pom + + + org.graalvm.python + python-embedding + ${python.version} + + + + + + + + org.graalvm.python + graalpy-maven-plugin + ${python.version} + + + + + pandas + pyarrow + + + + process-graalpy-resources + + + + + + + + \ No newline at end of file diff --git a/graalpy/graalpy-apache-arrow-guide/src/data_analysis.py b/graalpy/graalpy-apache-arrow-guide/src/data_analysis.py new file mode 100644 index 00000000..ce34833a --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/src/data_analysis.py @@ -0,0 +1,10 @@ +import pandas as pd +from polyglot.arrow import Float8Vector + +def calculateMean(valueVector: Float8Vector) -> float: + series = pd.Series(valueVector, dtype="float64[pyarrow]") + return series.mean() + +def calculateMedian(valueVector: Float8Vector) -> float: + series = pd.Series(valueVector, dtype="float64[pyarrow]") + return series.median() \ No newline at end of file diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/DataAnalysisPyModule.java b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/DataAnalysisPyModule.java new file mode 100644 index 00000000..eaf97228 --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/DataAnalysisPyModule.java @@ -0,0 +1,9 @@ +package com.example; + +import org.apache.arrow.vector.Float8Vector; + +public interface DataAnalysisPyModule { + + double calculateMean(Float8Vector valueVector); + double calculateMedian(Float8Vector valueVector); +} diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/DownloadUtils.java b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/DownloadUtils.java new file mode 100644 index 00000000..f4f0fdba --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/DownloadUtils.java @@ -0,0 +1,32 @@ +package com.example; + +import org.apache.arrow.vector.Float8Vector; + +import java.io.BufferedReader; +import java.io.InputStreamReader; +import java.net.HttpURLConnection; +import java.net.URI; + +public class DownloadUtils { + + public static void downloadAndStore(String url, int columnIndex, Float8Vector vectorToStore) { + try { + var httpConnection = (HttpURLConnection) URI.create(url).toURL().openConnection(); + if (httpConnection.getResponseCode() == HttpURLConnection.HTTP_OK) { + try (BufferedReader reader = new BufferedReader(new InputStreamReader(httpConnection.getInputStream()))) { + String line; + int index = 0; + while ((line = reader.readLine()) != null) { + var values = line.split(","); + double value = Double.parseDouble(values[columnIndex]); + vectorToStore.setSafe(index, value); + index++; + } + vectorToStore.setValueCount(index); + } + } + } catch (Exception e) { + throw new RuntimeException(e); + } + } +} diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java new file mode 100644 index 00000000..27b4088b --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java @@ -0,0 +1,49 @@ +package com.example; + +import org.apache.arrow.memory.BufferAllocator; +import org.apache.arrow.memory.RootAllocator; +import org.apache.arrow.vector.Float8Vector; +import org.graalvm.polyglot.Context; +import org.graalvm.polyglot.Value; +import org.graalvm.python.embedding.utils.GraalPyResources; + +import java.io.IOException; + +public class Main { + + private static DataAnalysisPyModule dataAnalysisPyModule; + private static final String PYTHON_URL = "https://www.graalvm.org/compatibility/module_results/python-module-testing-v241.csv"; + private static final String JAVASCRIPT_URL = "https://www.graalvm.org/compatibility/module_results/js-module-testing.csv"; + private static final Integer PASSING_RATE_COLUMN_INDEX = 3; + + public static Context initContext() { + return GraalPyResources.contextBuilder().allowAllAccess(true).build(); + } + + public static void initDataAnalysisPyModule(Context context) { + Value value = context.eval("python", "import data_analysis; data_analysis"); + dataAnalysisPyModule = value.as(DataAnalysisPyModule.class); + } + + + public static void main(String[] args) throws IOException, InterruptedException { + try (Context context = initContext(); + BufferAllocator allocator = new RootAllocator(); + Float8Vector pyVector = new Float8Vector("pyPassingRate", allocator); + Float8Vector jsVector = new Float8Vector("jsPassingRate", allocator) + ) { + initDataAnalysisPyModule(context); + Thread pyThread = new Thread(() -> DownloadUtils.downloadAndStore(PYTHON_URL, PASSING_RATE_COLUMN_INDEX, pyVector)); + Thread jsThread = new Thread(() -> DownloadUtils.downloadAndStore(JAVASCRIPT_URL, PASSING_RATE_COLUMN_INDEX, jsVector)); + pyThread.start(); + jsThread.start(); + pyThread.join(); + jsThread.join(); + + System.out.println("Python mean: " + dataAnalysisPyModule.calculateMean(pyVector)); + System.out.println("Python median: " + dataAnalysisPyModule.calculateMedian(pyVector)); + System.out.println("JS mean: " + dataAnalysisPyModule.calculateMean(jsVector)); + System.out.println("JS median: " + dataAnalysisPyModule.calculateMedian(jsVector)); + } + } +} \ No newline at end of file From 55c5175e6f83402262fc232158fba232606ca0d6 Mon Sep 17 00:00:00 2001 From: Tim Felgentreff Date: Mon, 13 Jan 2025 20:57:38 +0100 Subject: [PATCH 02/12] - Minimize permissions - Calculate in threads - Do not include python home in jar - Move data_analysis.py to correct location in vfs --- graalpy/graalpy-apache-arrow-guide/pom.xml | 6 ++++- .../src/main/java/com/example/Main.java | 27 +++++++++++++------ .../src}/data_analysis.py | 2 +- 3 files changed, 25 insertions(+), 10 deletions(-) rename graalpy/graalpy-apache-arrow-guide/src/{ => main/resources/org.graalvm.python.vfs/src}/data_analysis.py (92%) diff --git a/graalpy/graalpy-apache-arrow-guide/pom.xml b/graalpy/graalpy-apache-arrow-guide/pom.xml index 27886682..8a54da4c 100644 --- a/graalpy/graalpy-apache-arrow-guide/pom.xml +++ b/graalpy/graalpy-apache-arrow-guide/pom.xml @@ -63,6 +63,10 @@ pandas pyarrow + + + .* + process-graalpy-resources @@ -73,4 +77,4 @@ - \ No newline at end of file + diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java index 27b4088b..c1ad5ad6 100644 --- a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java +++ b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java @@ -4,6 +4,7 @@ import org.apache.arrow.memory.RootAllocator; import org.apache.arrow.vector.Float8Vector; import org.graalvm.polyglot.Context; +import org.graalvm.polyglot.HostAccess; import org.graalvm.polyglot.Value; import org.graalvm.python.embedding.utils.GraalPyResources; @@ -17,7 +18,13 @@ public class Main { private static final Integer PASSING_RATE_COLUMN_INDEX = 3; public static Context initContext() { - return GraalPyResources.contextBuilder().allowAllAccess(true).build(); + return GraalPyResources.contextBuilder() + .option("python.PythonHome", "") + .option("python.WarnExperimentalFeatures", "false") + .allowHostAccess(HostAccess.ALL) + .allowHostClassLookup(c -> true) + .allowNativeAccess(true) + .build(); } public static void initDataAnalysisPyModule(Context context) { @@ -33,17 +40,21 @@ public static void main(String[] args) throws IOException, InterruptedException Float8Vector jsVector = new Float8Vector("jsPassingRate", allocator) ) { initDataAnalysisPyModule(context); - Thread pyThread = new Thread(() -> DownloadUtils.downloadAndStore(PYTHON_URL, PASSING_RATE_COLUMN_INDEX, pyVector)); - Thread jsThread = new Thread(() -> DownloadUtils.downloadAndStore(JAVASCRIPT_URL, PASSING_RATE_COLUMN_INDEX, jsVector)); + Thread pyThread = new Thread(() -> { + DownloadUtils.downloadAndStore(PYTHON_URL, PASSING_RATE_COLUMN_INDEX, pyVector); + System.out.println("Python mean: " + dataAnalysisPyModule.calculateMean(pyVector)); + System.out.println("Python median: " + dataAnalysisPyModule.calculateMedian(pyVector)); + }); + Thread jsThread = new Thread(() -> { + DownloadUtils.downloadAndStore(JAVASCRIPT_URL, PASSING_RATE_COLUMN_INDEX, jsVector); + System.out.println("JS mean: " + dataAnalysisPyModule.calculateMean(jsVector)); + System.out.println("JS median: " + dataAnalysisPyModule.calculateMedian(jsVector)); + }); pyThread.start(); jsThread.start(); pyThread.join(); jsThread.join(); - System.out.println("Python mean: " + dataAnalysisPyModule.calculateMean(pyVector)); - System.out.println("Python median: " + dataAnalysisPyModule.calculateMedian(pyVector)); - System.out.println("JS mean: " + dataAnalysisPyModule.calculateMean(jsVector)); - System.out.println("JS median: " + dataAnalysisPyModule.calculateMedian(jsVector)); } } -} \ No newline at end of file +} diff --git a/graalpy/graalpy-apache-arrow-guide/src/data_analysis.py b/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py similarity index 92% rename from graalpy/graalpy-apache-arrow-guide/src/data_analysis.py rename to graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py index ce34833a..23f5dfa0 100644 --- a/graalpy/graalpy-apache-arrow-guide/src/data_analysis.py +++ b/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py @@ -7,4 +7,4 @@ def calculateMean(valueVector: Float8Vector) -> float: def calculateMedian(valueVector: Float8Vector) -> float: series = pd.Series(valueVector, dtype="float64[pyarrow]") - return series.median() \ No newline at end of file + return series.median() From 8786280dac7fad54b38d5597b681eb2f10ca0fcb Mon Sep 17 00:00:00 2001 From: Tim Felgentreff Date: Tue, 14 Jan 2025 10:47:14 +0100 Subject: [PATCH 03/12] Use a thread pool to demonstrate parallel usage of Python and fix arrow shipping in Jar resources --- .../src/main/java/com/example/Main.java | 57 ++++++++++++------- .../src/data_analysis.py | 4 ++ 2 files changed, 39 insertions(+), 22 deletions(-) diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java index c1ad5ad6..73202a82 100644 --- a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java +++ b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java @@ -1,5 +1,12 @@ package com.example; +import java.io.IOException; +import java.nio.file.Path; +import java.time.Duration; +import java.util.Map; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; + import org.apache.arrow.memory.BufferAllocator; import org.apache.arrow.memory.RootAllocator; import org.apache.arrow.vector.Float8Vector; @@ -7,8 +14,7 @@ import org.graalvm.polyglot.HostAccess; import org.graalvm.polyglot.Value; import org.graalvm.python.embedding.utils.GraalPyResources; - -import java.io.IOException; +import org.graalvm.python.embedding.utils.VirtualFileSystem; public class Main { @@ -17,12 +23,17 @@ public class Main { private static final String JAVASCRIPT_URL = "https://www.graalvm.org/compatibility/module_results/js-module-testing.csv"; private static final Integer PASSING_RATE_COLUMN_INDEX = 3; - public static Context initContext() { - return GraalPyResources.contextBuilder() + public static Context initContext() throws IOException { + var resourcesDir = Path.of(System.getProperty("user.home"), ".cache", "graalpy-apache-arrow-guide.resources"); + if (!resourcesDir.toFile().isDirectory()) { + var fs = VirtualFileSystem.create(); + GraalPyResources.extractVirtualFileSystemResources(fs, resourcesDir); + } + return GraalPyResources.contextBuilder(resourcesDir) .option("python.PythonHome", "") .option("python.WarnExperimentalFeatures", "false") .allowHostAccess(HostAccess.ALL) - .allowHostClassLookup(c -> true) + .allowHostClassLookup(_ -> true) .allowNativeAccess(true) .build(); } @@ -36,25 +47,27 @@ public static void initDataAnalysisPyModule(Context context) { public static void main(String[] args) throws IOException, InterruptedException { try (Context context = initContext(); BufferAllocator allocator = new RootAllocator(); - Float8Vector pyVector = new Float8Vector("pyPassingRate", allocator); - Float8Vector jsVector = new Float8Vector("jsPassingRate", allocator) ) { initDataAnalysisPyModule(context); - Thread pyThread = new Thread(() -> { - DownloadUtils.downloadAndStore(PYTHON_URL, PASSING_RATE_COLUMN_INDEX, pyVector); - System.out.println("Python mean: " + dataAnalysisPyModule.calculateMean(pyVector)); - System.out.println("Python median: " + dataAnalysisPyModule.calculateMedian(pyVector)); - }); - Thread jsThread = new Thread(() -> { - DownloadUtils.downloadAndStore(JAVASCRIPT_URL, PASSING_RATE_COLUMN_INDEX, jsVector); - System.out.println("JS mean: " + dataAnalysisPyModule.calculateMean(jsVector)); - System.out.println("JS median: " + dataAnalysisPyModule.calculateMedian(jsVector)); - }); - pyThread.start(); - jsThread.start(); - pyThread.join(); - jsThread.join(); - + try (ExecutorService e = Executors.newWorkStealingPool()) { + // Simulate some amount of parallelism + for (int i = 0; i < Runtime.getRuntime().availableProcessors() * 2; ++i) { + for (var pair : Map.of("GraalPy", PYTHON_URL, "GraalJS", JAVASCRIPT_URL).entrySet()) { + e.submit(() -> { + try (Float8Vector v = new Float8Vector("passingRate", allocator)) { + DownloadUtils.downloadAndStore(pair.getValue(), PASSING_RATE_COLUMN_INDEX, v); + System.err.println("DOWNLOAD FINISHED, SUBMITTING TO PYTHON WITH 0-COPY IN 5 SECONDS! WATCH THE MEMORY AND BE AMAZED!"); + try { + Thread.sleep(Duration.ofSeconds(5)); + } catch (InterruptedException e1) { + } + System.out.println(pair.getKey() + " mean: " + dataAnalysisPyModule.calculateMean(v)); + System.out.println(pair.getKey() + " median: " + dataAnalysisPyModule.calculateMedian(v)); + } + }); + } + } + } } } } diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py b/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py index 23f5dfa0..183501d3 100644 --- a/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py +++ b/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py @@ -1,10 +1,14 @@ import pandas as pd +import pyarrow as pa + from polyglot.arrow import Float8Vector + def calculateMean(valueVector: Float8Vector) -> float: series = pd.Series(valueVector, dtype="float64[pyarrow]") return series.mean() + def calculateMedian(valueVector: Float8Vector) -> float: series = pd.Series(valueVector, dtype="float64[pyarrow]") return series.median() From 5dbdb42b8b0192b32e6000e6a9103985d2a5ec50 Mon Sep 17 00:00:00 2001 From: Ivo Horak Date: Wed, 15 Jan 2025 15:29:06 +0100 Subject: [PATCH 04/12] WIP: Add README + small cleanups --- graalpy/graalpy-apache-arrow-guide/README.md | 105 ++++++++++++++++++ graalpy/graalpy-apache-arrow-guide/pom.xml | 5 - .../src/main/java/com/example/Main.java | 2 +- .../src/data_analysis.py | 1 - 4 files changed, 106 insertions(+), 7 deletions(-) create mode 100644 graalpy/graalpy-apache-arrow-guide/README.md diff --git a/graalpy/graalpy-apache-arrow-guide/README.md b/graalpy/graalpy-apache-arrow-guide/README.md new file mode 100644 index 00000000..91ce8be5 --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/README.md @@ -0,0 +1,105 @@ +## GraalPy Apache Arrow Guide + +## 1. Getting Started + +In this guide, we demonstrate how to use Java Apache Arrow implementation library (JArrow) together with GraalPy while achieving zero copy memory when data are moved from Java to Python. Keep in mind that the current API is experimental and can change in the future. + +## 2. What you will need +* Basic knowledge of JArrow +* Some time on your hands +* A decent text editor or IDE +* A supported JDK[^1], preferably the latest [GraalVM JDK](https://graalvm.org/downloads/) + + [^1]: Oracle JDK 17 and OpenJDK 17 are supported with interpreter only. + GraalVM JDK 21, Oracle JDK 21, OpenJDK 21 and newer with [JIT compilation](https://www.graalvm.org/latest/reference-manual/embed-languages/#runtime-optimization-support). + Note: GraalVM for JDK 17 is **not supported**. + +## 3. Dependency configuration + +Add the required dependencies for GraalPy and JArrow in the dependency section of the POM. + +### 3.1 GraalPy dependencies +`pom.xml` +```xml + + org.graalvm.python + python-community + ${python.version} + pom + + + org.graalvm.python + python-embedding + ${python.version} + +``` + +❶ The `python-community` dependency is a meta-package that transitively depends on all resources and libraries to run GraalPy. + +❷ Note that the `python-community` package is not a JAR - it is simply a `pom` that declares more dependencies. + +❸ The `python-embedding` dependency provides the APIs to manage and use GraalPy from Java. + + +### 3.2 JArrow dependencies +`pom.xml` +```xml + + org.apache.arrow + arrow-vector + ${arrow.version} + + + org.apache.arrow + arrow-memory-unsafe + ${arrow.version} + +``` + +❶ The `arrow-vector` dependency is used for managing in-memory columnar data structures. + +❷ The `arrow-memory-unsafe` data structures defined in the `arrow-vector` will be backed by `sun.misc.Unsafe` library. +There is also another option `arrow-memory-netty`. You can read more about Apache Arrow memory management in [Apache Arrow documentation](https://arrow.apache.org/docs/java/memory.html) + + +## 4. Adding packages - GraalPy build plugin configuration + +`pom.xml` +```xml + + + + org.graalvm.python + graalpy-maven-plugin + ${python.version} + + + + + pandas + pyarrow + + + + .* + + + + process-graalpy-resources + + + + + + +``` + +❶ The `packages` section lists all Python packages optionally with [requirement specifiers](https://pip.pypa.io/en/stable/reference/requirement-specifiers/). + +❷ Python packages and their versions can be specified as if used with pip. You can either install the latest version or you can specify the version e.g.`pandas==2.2.2`. + +❸ The `pandas` package does not declare `pyarrow` as a transitive dependency so it has to done so manually at this place. + + + +TBD \ No newline at end of file diff --git a/graalpy/graalpy-apache-arrow-guide/pom.xml b/graalpy/graalpy-apache-arrow-guide/pom.xml index 8a54da4c..7759d797 100644 --- a/graalpy/graalpy-apache-arrow-guide/pom.xml +++ b/graalpy/graalpy-apache-arrow-guide/pom.xml @@ -24,11 +24,6 @@ arrow-vector ${arrow.version} - - org.apache.arrow - arrow-c-data - ${arrow.version} - org.apache.arrow arrow-memory-unsafe diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java index 73202a82..0b369da1 100644 --- a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java +++ b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java @@ -44,7 +44,7 @@ public static void initDataAnalysisPyModule(Context context) { } - public static void main(String[] args) throws IOException, InterruptedException { + public static void main(String[] args) throws IOException { try (Context context = initContext(); BufferAllocator allocator = new RootAllocator(); ) { diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py b/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py index 183501d3..d5aa311e 100644 --- a/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py +++ b/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py @@ -1,5 +1,4 @@ import pandas as pd -import pyarrow as pa from polyglot.arrow import Float8Vector From 029fccfc5b79e3040a8306d02b616d44210a0bd2 Mon Sep 17 00:00:00 2001 From: Ivo Horak Date: Mon, 20 Jan 2025 16:55:00 +0100 Subject: [PATCH 05/12] WIP: Adding README --- graalpy/graalpy-apache-arrow-guide/README.md | 149 +++++++++++++++++- graalpy/graalpy-apache-arrow-guide/pom.xml | 25 ++- .../src/main/java/com/example/Main.java | 41 ++--- .../src/data_analysis.py | 3 +- 4 files changed, 183 insertions(+), 35 deletions(-) diff --git a/graalpy/graalpy-apache-arrow-guide/README.md b/graalpy/graalpy-apache-arrow-guide/README.md index 91ce8be5..5e329fe0 100644 --- a/graalpy/graalpy-apache-arrow-guide/README.md +++ b/graalpy/graalpy-apache-arrow-guide/README.md @@ -2,7 +2,7 @@ ## 1. Getting Started -In this guide, we demonstrate how to use Java Apache Arrow implementation library (JArrow) together with GraalPy while achieving zero copy memory when data are moved from Java to Python. Keep in mind that the current API is experimental and can change in the future. +This guide demonstrates how to use the Java Apache Arrow implementation library (JArrow) with GraalPy, achieving zero-copy memory when transferring data between Java and Python. ## 2. What you will need * Basic knowledge of JArrow @@ -14,7 +14,7 @@ In this guide, we demonstrate how to use Java Apache Arrow implementation librar GraalVM JDK 21, Oracle JDK 21, OpenJDK 21 and newer with [JIT compilation](https://www.graalvm.org/latest/reference-manual/embed-languages/#runtime-optimization-support). Note: GraalVM for JDK 17 is **not supported**. -## 3. Dependency configuration +## 3. Writing the application Add the required dependencies for GraalPy and JArrow in the dependency section of the POM. @@ -62,7 +62,7 @@ Add the required dependencies for GraalPy and JArrow in the dependency section o There is also another option `arrow-memory-netty`. You can read more about Apache Arrow memory management in [Apache Arrow documentation](https://arrow.apache.org/docs/java/memory.html) -## 4. Adding packages - GraalPy build plugin configuration +## 3.3 Adding packages - GraalPy build plugin configuration `pom.xml` ```xml @@ -102,4 +102,145 @@ There is also another option `arrow-memory-netty`. You can read more about Apach -TBD \ No newline at end of file +## 3.4 Creating a Python context +`Main.java` +```java +public static Context initContext() throws IOException { + var resourcesDir = Path.of(System.getProperty("user.home"), ".cache", "graalpy-apache-arrow-guide.resources"); // ① + var fs = VirtualFileSystem.create(); + GraalPyResources.extractVirtualFileSystemResources(fs, resourcesDir); // ② + return GraalPyResources.contextBuilder(resourcesDir) + .option("python.PythonHome", "") + .option("python.WarnExperimentalFeatures", "false") + .allowHostAccess(HostAccess.ALL) + .allowHostClassLookup(_ -> true) + .allowNativeAccess(true) + .build(); // ③ +} +``` + +❶ Specify directory where resources will be copied. + +❷ Copy the resources from Virtual File System to the directory specified. This step is needed because PyArrow ...? + +❸ Create the context with the given configuration. + + +## 3.5 Initialize Python module + + +We'll create a Python module in this section and bind it to a Java interface, allowing the Java interface to call Python methods defined in the module. + +All Python source code should be placed in `src/main/resources/org.graalvm.python.vfs/src` + +Let's create a `data_analysis.py` file to calculate the mean and median for the Float8Vector using Pandas: +```python +import pandas as pd +from polyglot.arrow import Float8Vector # ① + + +def calculateMean(valueVector: Float8Vector) -> float: + series = pd.Series(valueVector, dtype="float64[pyarrow]") # ② + return series.mean() + + +def calculateMedian(valueVector: Float8Vector) -> float: + series = pd.Series(valueVector, dtype="float64[pyarrow]") + return series.median() +``` + +❶ This import is crucial. Without it zero copy memory won't be achieved. + +❷ In pandas you need to specify that the series should be backed by pyarrow, therefore adding `[pyarrow]` to the dtype. + + + +### 3.5.1 Binding Java interface with Python code + +Define a Java interface with the methods we want to bind. Remember, the method names must match those in the Python code. + +`DataAnalysisPyModule.java` +```java + +public interface DataAnalysisPyModule { + double calculateMean(Float8Vector valueVector); + double calculateMedian(Float8Vector valueVector); +} +``` + +Bind the Java interface to the Python module. + +`Main.java` + +```java + public static void initDataAnalysisPyModule(Context context) { + Value value = context.eval("python", "import data_analysis; data_analysis"); + dataAnalysisPyModule = value.as(DataAnalysisPyModule.class); + } +``` + +## 3.6 Running the Application + +Everything is set, and we can now try it out. In this example, we'll download test reports for GraalPy and GraalJS, and then calculate the mean and median values. We handle the data download on the Java side to take advantage of true parallelism, which isn't possible in Python due to the Global Interpreter Lock (GIL). + +To download the data, we've prepared a helper method. This method also populates a JArrow float vector, which will be passed directly to the Python code. + +`DownloadUtils.java` +```java + public static void downloadAndStore(String url, int columnIndex, Float8Vector vectorToStore) { + try { + var httpConnection = (HttpURLConnection) URI.create(url).toURL().openConnection(); + if (httpConnection.getResponseCode() == HttpURLConnection.HTTP_OK) { + try (BufferedReader reader = new BufferedReader(new InputStreamReader(httpConnection.getInputStream()))) { + String line; + int index = 0; + while ((line = reader.readLine()) != null) { + var values = line.split(","); + double value = Double.parseDouble(values[columnIndex]); + vectorToStore.setSafe(index, value); + index++; + } + vectorToStore.setValueCount(index); + } + } + } catch (Exception e) { + throw new RuntimeException(e); + } + } +``` + +Finally, use the setup in your main method: + +`Main.java` +```java + public static void main(String[] args) throws IOException, InterruptedException { + try (Context context = initContext(); + BufferAllocator allocator = new RootAllocator(); + Float8Vector pyVector = new Float8Vector("python", allocator); + Float8Vector jsVector = new Float8Vector("javascript", allocator) + ) { + initDataAnalysisPyModule(context); + Thread pyThread = new Thread(() -> DownloadUtils.downloadAndStore(PYTHON_URL, PASSING_RATE_COLUMN_INDEX, pyVector)); + Thread jsThread = new Thread(() -> DownloadUtils.downloadAndStore(JAVASCRIPT_URL, PASSING_RATE_COLUMN_INDEX, jsVector)); + pyThread.start(); + jsThread.start(); + pyThread.join(); + jsThread.join(); + + System.out.println("Python mean: " + dataAnalysisPyModule.calculateMean(pyVector)); + System.out.println("Python median: " + dataAnalysisPyModule.calculateMedian(pyVector)); + System.out.println("JS mean: " + dataAnalysisPyModule.calculateMean(jsVector)); + System.out.println("JS median: " + dataAnalysisPyModule.calculateMedian(jsVector)); + } + } +``` + +To compile the application: +```bash +./mvnw package +``` + +To run the application: +```bash +./mvnw exec:java -Dexec.mainClass="com.example.Main" +``` \ No newline at end of file diff --git a/graalpy/graalpy-apache-arrow-guide/pom.xml b/graalpy/graalpy-apache-arrow-guide/pom.xml index 7759d797..c2690f01 100644 --- a/graalpy/graalpy-apache-arrow-guide/pom.xml +++ b/graalpy/graalpy-apache-arrow-guide/pom.xml @@ -14,7 +14,8 @@ UTF-8 17.0.0 - 25.0.0-SNAPSHOT + + 26.0.0 @@ -54,9 +55,9 @@ - - pandas - pyarrow + + pandas + pyarrow @@ -69,7 +70,21 @@ + + org.codehaus.mojo + exec-maven-plugin + 1.2.1 + + + + java + + + + + com.example.Main + + - diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java index 0b369da1..641f3033 100644 --- a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java +++ b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java @@ -25,10 +25,8 @@ public class Main { public static Context initContext() throws IOException { var resourcesDir = Path.of(System.getProperty("user.home"), ".cache", "graalpy-apache-arrow-guide.resources"); - if (!resourcesDir.toFile().isDirectory()) { - var fs = VirtualFileSystem.create(); - GraalPyResources.extractVirtualFileSystemResources(fs, resourcesDir); - } + var fs = VirtualFileSystem.create(); + GraalPyResources.extractVirtualFileSystemResources(fs, resourcesDir); return GraalPyResources.contextBuilder(resourcesDir) .option("python.PythonHome", "") .option("python.WarnExperimentalFeatures", "false") @@ -44,30 +42,25 @@ public static void initDataAnalysisPyModule(Context context) { } - public static void main(String[] args) throws IOException { + + public static void main(String[] args) throws IOException, InterruptedException { try (Context context = initContext(); BufferAllocator allocator = new RootAllocator(); + Float8Vector pyVector = new Float8Vector("python", allocator); + Float8Vector jsVector = new Float8Vector("javascript", allocator) ) { initDataAnalysisPyModule(context); - try (ExecutorService e = Executors.newWorkStealingPool()) { - // Simulate some amount of parallelism - for (int i = 0; i < Runtime.getRuntime().availableProcessors() * 2; ++i) { - for (var pair : Map.of("GraalPy", PYTHON_URL, "GraalJS", JAVASCRIPT_URL).entrySet()) { - e.submit(() -> { - try (Float8Vector v = new Float8Vector("passingRate", allocator)) { - DownloadUtils.downloadAndStore(pair.getValue(), PASSING_RATE_COLUMN_INDEX, v); - System.err.println("DOWNLOAD FINISHED, SUBMITTING TO PYTHON WITH 0-COPY IN 5 SECONDS! WATCH THE MEMORY AND BE AMAZED!"); - try { - Thread.sleep(Duration.ofSeconds(5)); - } catch (InterruptedException e1) { - } - System.out.println(pair.getKey() + " mean: " + dataAnalysisPyModule.calculateMean(v)); - System.out.println(pair.getKey() + " median: " + dataAnalysisPyModule.calculateMedian(v)); - } - }); - } - } - } + Thread pyThread = new Thread(() -> DownloadUtils.downloadAndStore(PYTHON_URL, PASSING_RATE_COLUMN_INDEX, pyVector)); + Thread jsThread = new Thread(() -> DownloadUtils.downloadAndStore(JAVASCRIPT_URL, PASSING_RATE_COLUMN_INDEX, jsVector)); + pyThread.start(); + jsThread.start(); + pyThread.join(); + jsThread.join(); + + System.out.println("Python mean: " + dataAnalysisPyModule.calculateMean(pyVector)); + System.out.println("Python median: " + dataAnalysisPyModule.calculateMedian(pyVector)); + System.out.println("JS mean: " + dataAnalysisPyModule.calculateMean(jsVector)); + System.out.println("JS median: " + dataAnalysisPyModule.calculateMedian(jsVector)); } } } diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py b/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py index d5aa311e..a7d84e32 100644 --- a/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py +++ b/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py @@ -1,6 +1,5 @@ import pandas as pd - -from polyglot.arrow import Float8Vector +from polyglot.arrow import Float8Vector # ① def calculateMean(valueVector: Float8Vector) -> float: From ab9500232730e77d0772d9a839ca31e4560232a8 Mon Sep 17 00:00:00 2001 From: Ivo Horak Date: Tue, 21 Jan 2025 10:27:13 +0100 Subject: [PATCH 06/12] Add Gradle support --- .../graalpy-apache-arrow-guide/build.gradle | 53 ++++ .../gradle.properties | 5 + .../gradle/libs.versions.toml | 14 + .../gradle/wrapper/gradle-wrapper.jar | Bin 0 -> 43583 bytes .../gradle/wrapper/gradle-wrapper.properties | 7 + graalpy/graalpy-apache-arrow-guide/gradlew | 251 ++++++++++++++++++ .../graalpy-apache-arrow-guide/gradlew.bat | 94 +++++++ .../settings.gradle | 12 + 8 files changed, 436 insertions(+) create mode 100644 graalpy/graalpy-apache-arrow-guide/build.gradle create mode 100644 graalpy/graalpy-apache-arrow-guide/gradle.properties create mode 100644 graalpy/graalpy-apache-arrow-guide/gradle/libs.versions.toml create mode 100644 graalpy/graalpy-apache-arrow-guide/gradle/wrapper/gradle-wrapper.jar create mode 100644 graalpy/graalpy-apache-arrow-guide/gradle/wrapper/gradle-wrapper.properties create mode 100755 graalpy/graalpy-apache-arrow-guide/gradlew create mode 100644 graalpy/graalpy-apache-arrow-guide/gradlew.bat create mode 100644 graalpy/graalpy-apache-arrow-guide/settings.gradle diff --git a/graalpy/graalpy-apache-arrow-guide/build.gradle b/graalpy/graalpy-apache-arrow-guide/build.gradle new file mode 100644 index 00000000..88504376 --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/build.gradle @@ -0,0 +1,53 @@ +plugins { + id 'application' + id 'java' + id 'org.graalvm.python' version '25.0.0' +} + +group = 'com.example' +version = '1.0-SNAPSHOT' +description = 'graalpy-apache-arrow-guide' + +graalPy { + community = true + packages = [ // ① + 'pandas', // ② + 'pyarrow' // ③ + ] +} + +repositories { + maven { + url = uri('file:///tmp/local_repo') + } + mavenCentral() +} + +// Python version needs to be changed when we publish public artefacts +ext { + arrowVersion = '17.0.0' + pythonVersion = '25.0.0' +} + +compileJava { + options.compilerArgs << '--enable-preview' +} + +tasks.withType(JavaExec) { + jvmArgs = ['--enable-preview'] +} + +dependencies { + // Apache Arrow + implementation "org.apache.arrow:arrow-vector:$arrowVersion" + implementation "org.apache.arrow:arrow-memory-unsafe:$arrowVersion" + + // GraalPy + implementation "org.graalvm.python:python-community:$pythonVersion" + implementation "org.graalvm.python:python-embedding:$pythonVersion" +} + +application { + // Define the main class for the application. + mainClass = 'com.example.Main' +} \ No newline at end of file diff --git a/graalpy/graalpy-apache-arrow-guide/gradle.properties b/graalpy/graalpy-apache-arrow-guide/gradle.properties new file mode 100644 index 00000000..377538c9 --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/gradle.properties @@ -0,0 +1,5 @@ +# This file was generated by the Gradle 'init' task. +# https://docs.gradle.org/current/userguide/build_environment.html#sec:gradle_configuration_properties + +org.gradle.configuration-cache=true + diff --git a/graalpy/graalpy-apache-arrow-guide/gradle/libs.versions.toml b/graalpy/graalpy-apache-arrow-guide/gradle/libs.versions.toml new file mode 100644 index 00000000..51f8fba0 --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/gradle/libs.versions.toml @@ -0,0 +1,14 @@ +# This file was generated by the Gradle 'init' task. +# https://docs.gradle.org/current/userguide/platforms.html#sub::toml-dependencies-format + +[versions] +org-apache-arrow-arrow-memory-unsafe = "17.0.0" +org-apache-arrow-arrow-vector = "17.0.0" +org-graalvm-python-python-community = "26.0.0" +org-graalvm-python-python-embedding = "26.0.0" + +[libraries] +org-apache-arrow-arrow-memory-unsafe = { module = "org.apache.arrow:arrow-memory-unsafe", version.ref = "org-apache-arrow-arrow-memory-unsafe" } +org-apache-arrow-arrow-vector = { module = "org.apache.arrow:arrow-vector", version.ref = "org-apache-arrow-arrow-vector" } +org-graalvm-python-python-community = { module = "org.graalvm.python:python-community", version.ref = "org-graalvm-python-python-community" } +org-graalvm-python-python-embedding = { module = "org.graalvm.python:python-embedding", version.ref = "org-graalvm-python-python-embedding" } diff --git a/graalpy/graalpy-apache-arrow-guide/gradle/wrapper/gradle-wrapper.jar 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+distributionUrl=https\://services.gradle.org/distributions/gradle-8.12-bin.zip +networkTimeout=10000 +validateDistributionUrl=true +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/graalpy/graalpy-apache-arrow-guide/gradlew b/graalpy/graalpy-apache-arrow-guide/gradlew new file mode 100755 index 00000000..f3b75f3b --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/gradlew @@ -0,0 +1,251 @@ +#!/bin/sh + +# +# Copyright © 2015-2021 the original authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +# SPDX-License-Identifier: Apache-2.0 +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +# This is normally unused +# shellcheck disable=SC2034 +APP_BASE_NAME=${0##*/} +# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036) +APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD=$JAVA_HOME/jre/sh/java + else + JAVACMD=$JAVA_HOME/bin/java + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + if ! command -v java >/dev/null 2>&1 + then + die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Collect all arguments for the java command: +# * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, +# and any embedded shellness will be escaped. +# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be +# treated as '${Hostname}' itself on the command line. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -classpath "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# Stop when "xargs" is not available. +if ! command -v xargs >/dev/null 2>&1 +then + die "xargs is not available" +fi + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/graalpy/graalpy-apache-arrow-guide/gradlew.bat b/graalpy/graalpy-apache-arrow-guide/gradlew.bat new file mode 100644 index 00000000..9b42019c --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/gradlew.bat @@ -0,0 +1,94 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem +@rem SPDX-License-Identifier: Apache-2.0 +@rem + +@if "%DEBUG%"=="" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%"=="" set DIRNAME=. +@rem This is normally unused +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if %ERRORLEVEL% equ 0 goto execute + +echo. 1>&2 +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2 +echo. 1>&2 +echo Please set the JAVA_HOME variable in your environment to match the 1>&2 +echo location of your Java installation. 1>&2 + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto execute + +echo. 1>&2 +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2 +echo. 1>&2 +echo Please set the JAVA_HOME variable in your environment to match the 1>&2 +echo location of your Java installation. 1>&2 + +goto fail + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* + +:end +@rem End local scope for the variables with windows NT shell +if %ERRORLEVEL% equ 0 goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +set EXIT_CODE=%ERRORLEVEL% +if %EXIT_CODE% equ 0 set EXIT_CODE=1 +if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE% +exit /b %EXIT_CODE% + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/graalpy/graalpy-apache-arrow-guide/settings.gradle b/graalpy/graalpy-apache-arrow-guide/settings.gradle new file mode 100644 index 00000000..5cecfb79 --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/settings.gradle @@ -0,0 +1,12 @@ +/* + * This file was generated by the Gradle 'init' task. + */ +pluginManagement { + repositories { + maven { + url = uri('file:///tmp/local_repo') + } + gradlePluginPortal() + } +} +rootProject.name = 'graalpy-apache-arrow-guide' From 4609369a037ee4175a7717be9b119c264cc17902 Mon Sep 17 00:00:00 2001 From: Ivo Horak Date: Tue, 21 Jan 2025 10:39:34 +0100 Subject: [PATCH 07/12] Add Maven support --- .../.mvn/wrapper/MavenWrapperDownloader.java | 117 +++++++ .../.mvn/wrapper/maven-wrapper.jar | Bin 0 -> 50710 bytes .../.mvn/wrapper/maven-wrapper.properties | 2 + graalpy/graalpy-apache-arrow-guide/mvnw | 310 ++++++++++++++++++ graalpy/graalpy-apache-arrow-guide/mvnw.cmd | 182 ++++++++++ 5 files changed, 611 insertions(+) create mode 100644 graalpy/graalpy-apache-arrow-guide/.mvn/wrapper/MavenWrapperDownloader.java create mode 100644 graalpy/graalpy-apache-arrow-guide/.mvn/wrapper/maven-wrapper.jar create mode 100644 graalpy/graalpy-apache-arrow-guide/.mvn/wrapper/maven-wrapper.properties create mode 100755 graalpy/graalpy-apache-arrow-guide/mvnw create mode 100644 graalpy/graalpy-apache-arrow-guide/mvnw.cmd diff --git a/graalpy/graalpy-apache-arrow-guide/.mvn/wrapper/MavenWrapperDownloader.java b/graalpy/graalpy-apache-arrow-guide/.mvn/wrapper/MavenWrapperDownloader.java new file mode 100644 index 00000000..b901097f --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/.mvn/wrapper/MavenWrapperDownloader.java @@ -0,0 +1,117 @@ +/* + * Copyright 2007-present the original author or authors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +import java.net.*; +import java.io.*; +import java.nio.channels.*; +import java.util.Properties; + +public class MavenWrapperDownloader { + + private static final String WRAPPER_VERSION = "0.5.6"; + /** + * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided. + */ + private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/" + + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar"; + + /** + * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to + * use instead of the default one. + */ + private static final String MAVEN_WRAPPER_PROPERTIES_PATH = + ".mvn/wrapper/maven-wrapper.properties"; + + /** + * Path where the maven-wrapper.jar will be saved to. + */ + private static final String MAVEN_WRAPPER_JAR_PATH = + ".mvn/wrapper/maven-wrapper.jar"; + + /** + * Name of the property which should be used to override the default download url for the wrapper. + */ + private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl"; + + public static void main(String args[]) { + System.out.println("- Downloader started"); + File baseDirectory = new File(args[0]); + System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath()); + + // If the maven-wrapper.properties exists, read it and check if it contains a custom + // wrapperUrl parameter. + File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH); + String url = DEFAULT_DOWNLOAD_URL; + if(mavenWrapperPropertyFile.exists()) { + FileInputStream mavenWrapperPropertyFileInputStream = null; + try { + mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile); + Properties mavenWrapperProperties = new Properties(); + mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream); + url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url); + } catch (IOException e) { + System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'"); + } finally { + try { + if(mavenWrapperPropertyFileInputStream != null) { + mavenWrapperPropertyFileInputStream.close(); + } + } catch (IOException e) { + // Ignore ... + } + } + } + System.out.println("- Downloading from: " + url); + + File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH); + if(!outputFile.getParentFile().exists()) { + if(!outputFile.getParentFile().mkdirs()) { + System.out.println( + "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'"); + } + } + System.out.println("- Downloading to: " + outputFile.getAbsolutePath()); + try { + downloadFileFromURL(url, outputFile); + System.out.println("Done"); + System.exit(0); + } catch (Throwable e) { + System.out.println("- Error downloading"); + e.printStackTrace(); + System.exit(1); + } + } + + private static void downloadFileFromURL(String urlString, File destination) throws Exception { + if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) { + String username = System.getenv("MVNW_USERNAME"); + char[] password = System.getenv("MVNW_PASSWORD").toCharArray(); + Authenticator.setDefault(new Authenticator() { + @Override + protected PasswordAuthentication getPasswordAuthentication() { + return new PasswordAuthentication(username, password); + } + }); + } + URL website = new URL(urlString); + ReadableByteChannel rbc; + rbc = Channels.newChannel(website.openStream()); + FileOutputStream fos = new FileOutputStream(destination); + fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE); + fos.close(); + rbc.close(); + } + +} diff --git a/graalpy/graalpy-apache-arrow-guide/.mvn/wrapper/maven-wrapper.jar b/graalpy/graalpy-apache-arrow-guide/.mvn/wrapper/maven-wrapper.jar new file mode 100644 index 0000000000000000000000000000000000000000..2cc7d4a55c0cd0092912bf49ae38b3a9e3fd0054 GIT binary patch literal 50710 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HcmV?d00001 diff --git a/graalpy/graalpy-apache-arrow-guide/.mvn/wrapper/maven-wrapper.properties b/graalpy/graalpy-apache-arrow-guide/.mvn/wrapper/maven-wrapper.properties new file mode 100644 index 00000000..642d572c --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/.mvn/wrapper/maven-wrapper.properties @@ -0,0 +1,2 @@ +distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip +wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar diff --git a/graalpy/graalpy-apache-arrow-guide/mvnw b/graalpy/graalpy-apache-arrow-guide/mvnw new file mode 100755 index 00000000..41c0f0c2 --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/mvnw @@ -0,0 +1,310 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Maven Start Up Batch script +# +# Required ENV vars: +# ------------------ +# JAVA_HOME - location of a JDK home dir +# +# Optional ENV vars +# ----------------- +# M2_HOME - location of maven2's installed home dir +# MAVEN_OPTS - parameters passed to the Java VM when running Maven +# e.g. to debug Maven itself, use +# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +# MAVEN_SKIP_RC - flag to disable loading of mavenrc files +# ---------------------------------------------------------------------------- + +if [ -z "$MAVEN_SKIP_RC" ] ; then + + if [ -f /etc/mavenrc ] ; then + . /etc/mavenrc + fi + + if [ -f "$HOME/.mavenrc" ] ; then + . "$HOME/.mavenrc" + fi + +fi + +# OS specific support. $var _must_ be set to either true or false. +cygwin=false; +darwin=false; +mingw=false +case "`uname`" in + CYGWIN*) cygwin=true ;; + MINGW*) mingw=true;; + Darwin*) darwin=true + # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home + # See https://developer.apple.com/library/mac/qa/qa1170/_index.html + if [ -z "$JAVA_HOME" ]; then + if [ -x "/usr/libexec/java_home" ]; then + export JAVA_HOME="`/usr/libexec/java_home`" + else + export JAVA_HOME="/Library/Java/Home" + fi + fi + ;; +esac + +if [ -z "$JAVA_HOME" ] ; then + if [ -r /etc/gentoo-release ] ; then + JAVA_HOME=`java-config --jre-home` + fi +fi + +if [ -z "$M2_HOME" ] ; then + ## resolve links - $0 may be a link to maven's home + PRG="$0" + + # need this for relative symlinks + while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG="`dirname "$PRG"`/$link" + fi + done + + saveddir=`pwd` + + M2_HOME=`dirname "$PRG"`/.. + + # make it fully qualified + M2_HOME=`cd "$M2_HOME" && pwd` + + cd "$saveddir" + # echo Using m2 at $M2_HOME +fi + +# For Cygwin, ensure paths are in UNIX format before anything is touched +if $cygwin ; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --unix "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --unix "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --unix "$CLASSPATH"` +fi + +# For Mingw, ensure paths are in UNIX format before anything is touched +if $mingw ; then + [ -n "$M2_HOME" ] && + M2_HOME="`(cd "$M2_HOME"; pwd)`" + [ -n "$JAVA_HOME" ] && + JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" +fi + +if [ -z "$JAVA_HOME" ]; then + javaExecutable="`which javac`" + if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then + # readlink(1) is not available as standard on Solaris 10. + readLink=`which readlink` + if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then + if $darwin ; then + javaHome="`dirname \"$javaExecutable\"`" + javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" + else + javaExecutable="`readlink -f \"$javaExecutable\"`" + fi + javaHome="`dirname \"$javaExecutable\"`" + javaHome=`expr "$javaHome" : '\(.*\)/bin'` + JAVA_HOME="$javaHome" + export JAVA_HOME + fi + fi +fi + +if [ -z "$JAVACMD" ] ; then + if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + else + JAVACMD="`which java`" + fi +fi + +if [ ! -x "$JAVACMD" ] ; then + echo "Error: JAVA_HOME is not defined correctly." >&2 + echo " We cannot execute $JAVACMD" >&2 + exit 1 +fi + +if [ -z "$JAVA_HOME" ] ; then + echo "Warning: JAVA_HOME environment variable is not set." +fi + +CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher + +# traverses directory structure from process work directory to filesystem root +# first directory with .mvn subdirectory is considered project base directory +find_maven_basedir() { + + if [ -z "$1" ] + then + echo "Path not specified to find_maven_basedir" + return 1 + fi + + basedir="$1" + wdir="$1" + while [ "$wdir" != '/' ] ; do + if [ -d "$wdir"/.mvn ] ; then + basedir=$wdir + break + fi + # workaround for JBEAP-8937 (on Solaris 10/Sparc) + if [ -d "${wdir}" ]; then + wdir=`cd "$wdir/.."; pwd` + fi + # end of workaround + done + echo "${basedir}" +} + +# concatenates all lines of a file +concat_lines() { + if [ -f "$1" ]; then + echo "$(tr -s '\n' ' ' < "$1")" + fi +} + +BASE_DIR=`find_maven_basedir "$(pwd)"` +if [ -z "$BASE_DIR" ]; then + exit 1; +fi + +########################################################################################## +# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central +# This allows using the maven wrapper in projects that prohibit checking in binary data. +########################################################################################## +if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found .mvn/wrapper/maven-wrapper.jar" + fi +else + if [ "$MVNW_VERBOSE" = true ]; then + echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..." + fi + if [ -n "$MVNW_REPOURL" ]; then + jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + else + jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + fi + while IFS="=" read key value; do + case "$key" in (wrapperUrl) jarUrl="$value"; break ;; + esac + done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties" + if [ "$MVNW_VERBOSE" = true ]; then + echo "Downloading from: $jarUrl" + fi + wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" + if $cygwin; then + wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"` + fi + + if command -v wget > /dev/null; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found wget ... using wget" + fi + if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then + wget "$jarUrl" -O "$wrapperJarPath" + else + wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" + fi + elif command -v curl > /dev/null; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found curl ... using curl" + fi + if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then + curl -o "$wrapperJarPath" "$jarUrl" -f + else + curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f + fi + + else + if [ "$MVNW_VERBOSE" = true ]; then + echo "Falling back to using Java to download" + fi + javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java" + # For Cygwin, switch paths to Windows format before running javac + if $cygwin; then + javaClass=`cygpath --path --windows "$javaClass"` + fi + if [ -e "$javaClass" ]; then + if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then + if [ "$MVNW_VERBOSE" = true ]; then + echo " - Compiling MavenWrapperDownloader.java ..." + fi + # Compiling the Java class + ("$JAVA_HOME/bin/javac" "$javaClass") + fi + if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then + # Running the downloader + if [ "$MVNW_VERBOSE" = true ]; then + echo " - Running MavenWrapperDownloader.java ..." + fi + ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR") + fi + fi + fi +fi +########################################################################################## +# End of extension +########################################################################################## + +export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} +if [ "$MVNW_VERBOSE" = true ]; then + echo $MAVEN_PROJECTBASEDIR +fi +MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" + +# For Cygwin, switch paths to Windows format before running java +if $cygwin; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --path --windows "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --windows "$CLASSPATH"` + [ -n "$MAVEN_PROJECTBASEDIR" ] && + MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` +fi + +# Provide a "standardized" way to retrieve the CLI args that will +# work with both Windows and non-Windows executions. +MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@" +export MAVEN_CMD_LINE_ARGS + +WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +exec "$JAVACMD" \ + $MAVEN_OPTS \ + -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ + "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ + ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" diff --git a/graalpy/graalpy-apache-arrow-guide/mvnw.cmd b/graalpy/graalpy-apache-arrow-guide/mvnw.cmd new file mode 100644 index 00000000..86115719 --- /dev/null +++ b/graalpy/graalpy-apache-arrow-guide/mvnw.cmd @@ -0,0 +1,182 @@ +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM http://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Maven Start Up Batch script +@REM +@REM Required ENV vars: +@REM JAVA_HOME - location of a JDK home dir +@REM +@REM Optional ENV vars +@REM M2_HOME - location of maven2's installed home dir +@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands +@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending +@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven +@REM e.g. to debug Maven itself, use +@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files +@REM ---------------------------------------------------------------------------- + +@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' +@echo off +@REM set title of command window +title %0 +@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on' +@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% + +@REM set %HOME% to equivalent of $HOME +if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") + +@REM Execute a user defined script before this one +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre +@REM check for pre script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat" +if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd" +:skipRcPre + +@setlocal + +set ERROR_CODE=0 + +@REM To isolate internal variables from possible post scripts, we use another setlocal +@setlocal + +@REM ==== START VALIDATION ==== +if not "%JAVA_HOME%" == "" goto OkJHome + +echo. +echo Error: JAVA_HOME not found in your environment. >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +:OkJHome +if exist "%JAVA_HOME%\bin\java.exe" goto init + +echo. +echo Error: JAVA_HOME is set to an invalid directory. >&2 +echo JAVA_HOME = "%JAVA_HOME%" >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +@REM ==== END VALIDATION ==== + +:init + +@REM Find the project base dir, i.e. the directory that contains the folder ".mvn". +@REM Fallback to current working directory if not found. + +set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% +IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir + +set EXEC_DIR=%CD% +set WDIR=%EXEC_DIR% +:findBaseDir +IF EXIST "%WDIR%"\.mvn goto baseDirFound +cd .. +IF "%WDIR%"=="%CD%" goto baseDirNotFound +set WDIR=%CD% +goto findBaseDir + +:baseDirFound +set MAVEN_PROJECTBASEDIR=%WDIR% +cd "%EXEC_DIR%" +goto endDetectBaseDir + +:baseDirNotFound +set MAVEN_PROJECTBASEDIR=%EXEC_DIR% +cd "%EXEC_DIR%" + +:endDetectBaseDir + +IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig + +@setlocal EnableExtensions EnableDelayedExpansion +for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a +@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% + +:endReadAdditionalConfig + +SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" +set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar" +set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + +FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO ( + IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B +) + +@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central +@REM This allows using the maven wrapper in projects that prohibit checking in binary data. +if exist %WRAPPER_JAR% ( + if "%MVNW_VERBOSE%" == "true" ( + echo Found %WRAPPER_JAR% + ) +) else ( + if not "%MVNW_REPOURL%" == "" ( + SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar" + ) + if "%MVNW_VERBOSE%" == "true" ( + echo Couldn't find %WRAPPER_JAR%, downloading it ... + echo Downloading from: %DOWNLOAD_URL% + ) + + powershell -Command "&{"^ + "$webclient = new-object System.Net.WebClient;"^ + "if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^ + "$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^ + "}"^ + "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^ + "}" + if "%MVNW_VERBOSE%" == "true" ( + echo Finished downloading %WRAPPER_JAR% + ) +) +@REM End of extension + +@REM Provide a "standardized" way to retrieve the CLI args that will +@REM work with both Windows and non-Windows executions. +set MAVEN_CMD_LINE_ARGS=%* + +%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %* +if ERRORLEVEL 1 goto error +goto end + +:error +set ERROR_CODE=1 + +:end +@endlocal & set ERROR_CODE=%ERROR_CODE% + +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost +@REM check for post script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat" +if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd" +:skipRcPost + +@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' +if "%MAVEN_BATCH_PAUSE%" == "on" pause + +if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE% + +exit /B %ERROR_CODE% From ac8f3268c66460111c3a44cc65ee19ef07f15ba5 Mon Sep 17 00:00:00 2001 From: Ivo Horak Date: Thu, 23 Jan 2025 12:57:29 +0100 Subject: [PATCH 08/12] Adding new enable_java_integration method + clean up --- graalpy/graalpy-apache-arrow-guide/README.md | 63 +++++++++++++++++-- .../graalpy-apache-arrow-guide/build.gradle | 12 ++-- graalpy/graalpy-apache-arrow-guide/pom.xml | 4 -- .../src/data_analysis.py | 3 +- 4 files changed, 65 insertions(+), 17 deletions(-) diff --git a/graalpy/graalpy-apache-arrow-guide/README.md b/graalpy/graalpy-apache-arrow-guide/README.md index 5e329fe0..6a383e2e 100644 --- a/graalpy/graalpy-apache-arrow-guide/README.md +++ b/graalpy/graalpy-apache-arrow-guide/README.md @@ -34,6 +34,14 @@ Add the required dependencies for GraalPy and JArrow in the dependency section o ``` +or + +`build.gradle` +``` +implementation "org.graalvm.python:python-community:$pythonVersion" // ① +implementation "org.graalvm.python:python-embedding:$pythonVersion" // ③ +``` + ❶ The `python-community` dependency is a meta-package that transitively depends on all resources and libraries to run GraalPy. ❷ Note that the `python-community` package is not a JAR - it is simply a `pom` that declares more dependencies. @@ -56,6 +64,14 @@ Add the required dependencies for GraalPy and JArrow in the dependency section o ``` +or + +`build.gradle` +```java +implementation "org.apache.arrow:arrow-vector:$arrowVersion" // ① +implementation "org.apache.arrow:arrow-memory-unsafe:$arrowVersion" // ② +``` + ❶ The `arrow-vector` dependency is used for managing in-memory columnar data structures. ❷ The `arrow-memory-unsafe` data structures defined in the `arrow-vector` will be backed by `sun.misc.Unsafe` library. @@ -94,6 +110,27 @@ There is also another option `arrow-memory-netty`. You can read more about Apach ``` +or + +`build.gradle` +``` +plugins { + id 'org.graalvm.python' version '25.0.0' + // ... +} +``` + +`build.gradle` +``` +graalPy { + community = true + packages = [ // ① + 'pandas', // ② + 'pyarrow' // ③ + ] +} +``` + ❶ The `packages` section lists all Python packages optionally with [requirement specifiers](https://pip.pypa.io/en/stable/reference/requirement-specifiers/). ❷ Python packages and their versions can be specified as if used with pip. You can either install the latest version or you can specify the version e.g.`pandas==2.2.2`. @@ -136,20 +173,22 @@ All Python source code should be placed in `src/main/resources/org.graalvm.pytho Let's create a `data_analysis.py` file to calculate the mean and median for the Float8Vector using Pandas: ```python import pandas as pd -from polyglot.arrow import Float8Vector # ① +from polyglot.arrow import Float8Vector, enable_java_integration +enable_java_integration() # ① def calculateMean(valueVector: Float8Vector) -> float: - series = pd.Series(valueVector, dtype="float64[pyarrow]") # ② - return series.mean() + series = pd.Series(valueVector, dtype="float64[pyarrow]") # ② + return series.mean() def calculateMedian(valueVector: Float8Vector) -> float: - series = pd.Series(valueVector, dtype="float64[pyarrow]") - return series.median() + series = pd.Series(valueVector, dtype="float64[pyarrow]") + return series.median() + ``` -❶ This import is crucial. Without it zero copy memory won't be achieved. +❶ You need to call this method to enable the zero copy integration. ❷ In pandas you need to specify that the series should be backed by pyarrow, therefore adding `[pyarrow]` to the dtype. @@ -240,7 +279,19 @@ To compile the application: ./mvnw package ``` +or + +```bash +./gradlew build +``` + To run the application: ```bash ./mvnw exec:java -Dexec.mainClass="com.example.Main" +``` + +or + +```bash +./gradlew run ``` \ No newline at end of file diff --git a/graalpy/graalpy-apache-arrow-guide/build.gradle b/graalpy/graalpy-apache-arrow-guide/build.gradle index 88504376..a5f796a7 100644 --- a/graalpy/graalpy-apache-arrow-guide/build.gradle +++ b/graalpy/graalpy-apache-arrow-guide/build.gradle @@ -1,7 +1,7 @@ plugins { + id 'org.graalvm.python' version '25.0.0' id 'application' id 'java' - id 'org.graalvm.python' version '25.0.0' } group = 'com.example' @@ -34,17 +34,17 @@ compileJava { } tasks.withType(JavaExec) { - jvmArgs = ['--enable-preview'] + jvmArgs = ['--enable-preview', '--add-opens=java.base/java.nio=org.apache.arrow.memory.core,ALL-UNNAMED'] } dependencies { // Apache Arrow - implementation "org.apache.arrow:arrow-vector:$arrowVersion" - implementation "org.apache.arrow:arrow-memory-unsafe:$arrowVersion" + implementation "org.apache.arrow:arrow-vector:$arrowVersion" // ① + implementation "org.apache.arrow:arrow-memory-unsafe:$arrowVersion" // ② // GraalPy - implementation "org.graalvm.python:python-community:$pythonVersion" - implementation "org.graalvm.python:python-embedding:$pythonVersion" + implementation "org.graalvm.python:python-community:$pythonVersion" // ① + implementation "org.graalvm.python:python-embedding:$pythonVersion" // ③ } application { diff --git a/graalpy/graalpy-apache-arrow-guide/pom.xml b/graalpy/graalpy-apache-arrow-guide/pom.xml index c2690f01..aa886690 100644 --- a/graalpy/graalpy-apache-arrow-guide/pom.xml +++ b/graalpy/graalpy-apache-arrow-guide/pom.xml @@ -59,10 +59,6 @@ pandas pyarrow - - - .* - process-graalpy-resources diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py b/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py index a7d84e32..c38a8586 100644 --- a/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py +++ b/graalpy/graalpy-apache-arrow-guide/src/main/resources/org.graalvm.python.vfs/src/data_analysis.py @@ -1,6 +1,7 @@ import pandas as pd -from polyglot.arrow import Float8Vector # ① +from polyglot.arrow import Float8Vector, enable_java_integration +enable_java_integration() # ① def calculateMean(valueVector: Float8Vector) -> float: series = pd.Series(valueVector, dtype="float64[pyarrow]") From dfaa1398e31e678bc4803a7e7ad2929176e6fef1 Mon Sep 17 00:00:00 2001 From: Ivo Horak Date: Fri, 14 Feb 2025 11:23:24 +0100 Subject: [PATCH 09/12] Adjusting README --- graalpy/graalpy-apache-arrow-guide/README.md | 57 ++++++++++++++------ 1 file changed, 40 insertions(+), 17 deletions(-) diff --git a/graalpy/graalpy-apache-arrow-guide/README.md b/graalpy/graalpy-apache-arrow-guide/README.md index 6a383e2e..dfe59160 100644 --- a/graalpy/graalpy-apache-arrow-guide/README.md +++ b/graalpy/graalpy-apache-arrow-guide/README.md @@ -21,23 +21,23 @@ Add the required dependencies for GraalPy and JArrow in the dependency section o ### 3.1 GraalPy dependencies `pom.xml` ```xml - - org.graalvm.python - python-community - ${python.version} - pom - - - org.graalvm.python - python-embedding - ${python.version} - + + org.graalvm.python + python-community + ${python.version} + pom + + + org.graalvm.python + python-embedding + ${python.version} + ``` or `build.gradle` -``` +```groovy implementation "org.graalvm.python:python-community:$pythonVersion" // ① implementation "org.graalvm.python:python-embedding:$pythonVersion" // ③ ``` @@ -95,10 +95,6 @@ There is also another option `arrow-memory-netty`. You can read more about Apach pandas pyarrow - - - .* - process-graalpy-resources @@ -212,6 +208,8 @@ Bind the Java interface to the Python module. `Main.java` ```java + private static DataAnalysisPyModule dataAnalysisPyModule; + public static void initDataAnalysisPyModule(Context context) { Value value = context.eval("python", "import data_analysis; data_analysis"); dataAnalysisPyModule = value.as(DataAnalysisPyModule.class); @@ -252,6 +250,11 @@ Finally, use the setup in your main method: `Main.java` ```java + private static final String PYTHON_URL = "https://www.graalvm.org/compatibility/module_results/python-module-testing-v241.csv"; + private static final String JAVASCRIPT_URL = "https://www.graalvm.org/compatibility/module_results/js-module-testing.csv"; + private static final Integer PASSING_RATE_COLUMN_INDEX = 3; + + public static void main(String[] args) throws IOException, InterruptedException { try (Context context = initContext(); BufferAllocator allocator = new RootAllocator(); @@ -285,7 +288,27 @@ or ./gradlew build ``` -To run the application: +To run the application using Maven, first define `exec` plugin: + +`pom.xml` +```xml + + org.codehaus.mojo + exec-maven-plugin + 1.2.1 + + + + java + + + + + com.example.Main + + +``` +Run the application using: ```bash ./mvnw exec:java -Dexec.mainClass="com.example.Main" ``` From 9ccf2ecb53f69f2e7af5017280ac480496e2b97a Mon Sep 17 00:00:00 2001 From: Ivo Horak Date: Tue, 18 Mar 2025 15:22:42 +0100 Subject: [PATCH 10/12] Adjusting Main based on the README --- graalpy/graalpy-apache-arrow-guide/README.md | 77 +++++++++---------- .../graalpy-apache-arrow-guide/build.gradle | 17 ++-- graalpy/graalpy-apache-arrow-guide/pom.xml | 12 +-- .../src/main/java/com/example/Main.java | 22 +++--- 4 files changed, 59 insertions(+), 69 deletions(-) diff --git a/graalpy/graalpy-apache-arrow-guide/README.md b/graalpy/graalpy-apache-arrow-guide/README.md index dfe59160..fbf14c1f 100644 --- a/graalpy/graalpy-apache-arrow-guide/README.md +++ b/graalpy/graalpy-apache-arrow-guide/README.md @@ -21,25 +21,25 @@ Add the required dependencies for GraalPy and JArrow in the dependency section o ### 3.1 GraalPy dependencies `pom.xml` ```xml - - org.graalvm.python - python-community - ${python.version} - pom - - - org.graalvm.python - python-embedding - ${python.version} - + + org.graalvm.python + python-community + ${python.version} + pom + + + org.graalvm.python + python-embedding + ${python.version} + ``` or `build.gradle` -```groovy -implementation "org.graalvm.python:python-community:$pythonVersion" // ① -implementation "org.graalvm.python:python-embedding:$pythonVersion" // ③ +``` +implementation "org.graalvm.python:python-community:24.2.0" // ① +implementation "org.graalvm.python:python-embedding:24.2.0" // ③ ``` ❶ The `python-community` dependency is a meta-package that transitively depends on all resources and libraries to run GraalPy. @@ -67,9 +67,9 @@ implementation "org.graalvm.python:python-embedding:$pythonVersion" // ③ or `build.gradle` -```java -implementation "org.apache.arrow:arrow-vector:$arrowVersion" // ① -implementation "org.apache.arrow:arrow-memory-unsafe:$arrowVersion" // ② +``` +implementation "org.apache.arrow:arrow-vector:17.0.0" // ① +implementation "org.apache.arrow:arrow-memory-unsafe:17.0.0" // ② ``` ❶ The `arrow-vector` dependency is used for managing in-memory columnar data structures. @@ -82,28 +82,24 @@ There is also another option `arrow-memory-netty`. You can read more about Apach `pom.xml` ```xml - - - - org.graalvm.python - graalpy-maven-plugin - ${python.version} - - - - - pandas - pyarrow - - - - process-graalpy-resources - - - - - - + + org.graalvm.python + graalpy-maven-plugin + ${python.version} + + + + + pandas + pyarrow + + + + process-graalpy-resources + + + + ``` or @@ -111,9 +107,8 @@ or `build.gradle` ``` plugins { - id 'org.graalvm.python' version '25.0.0' + id 'org.graalvm.python' version '24.2.0' // ... -} ``` `build.gradle` diff --git a/graalpy/graalpy-apache-arrow-guide/build.gradle b/graalpy/graalpy-apache-arrow-guide/build.gradle index a5f796a7..9d137add 100644 --- a/graalpy/graalpy-apache-arrow-guide/build.gradle +++ b/graalpy/graalpy-apache-arrow-guide/build.gradle @@ -1,5 +1,6 @@ plugins { - id 'org.graalvm.python' version '25.0.0' + id 'org.graalvm.python' version '24.2.0' + // ... id 'application' id 'java' } @@ -23,12 +24,6 @@ repositories { mavenCentral() } -// Python version needs to be changed when we publish public artefacts -ext { - arrowVersion = '17.0.0' - pythonVersion = '25.0.0' -} - compileJava { options.compilerArgs << '--enable-preview' } @@ -39,12 +34,12 @@ tasks.withType(JavaExec) { dependencies { // Apache Arrow - implementation "org.apache.arrow:arrow-vector:$arrowVersion" // ① - implementation "org.apache.arrow:arrow-memory-unsafe:$arrowVersion" // ② + implementation "org.apache.arrow:arrow-vector:17.0.0" // ① + implementation "org.apache.arrow:arrow-memory-unsafe:17.0.0" // ② // GraalPy - implementation "org.graalvm.python:python-community:$pythonVersion" // ① - implementation "org.graalvm.python:python-embedding:$pythonVersion" // ③ + implementation "org.graalvm.python:python-community:24.2.0" // ① + implementation "org.graalvm.python:python-embedding:24.2.0" // ③ } application { diff --git a/graalpy/graalpy-apache-arrow-guide/pom.xml b/graalpy/graalpy-apache-arrow-guide/pom.xml index aa886690..eb53a736 100644 --- a/graalpy/graalpy-apache-arrow-guide/pom.xml +++ b/graalpy/graalpy-apache-arrow-guide/pom.xml @@ -14,7 +14,7 @@ UTF-8 17.0.0 - + 26.0.0 @@ -22,25 +22,25 @@ org.apache.arrow - arrow-vector + arrow-vector ${arrow.version} org.apache.arrow - arrow-memory-unsafe + arrow-memory-unsafe ${arrow.version} org.graalvm.python - python-community + python-community ${python.version} - pom + pom org.graalvm.python - python-embedding + python-embedding ${python.version} diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java index 641f3033..f5e2a3f6 100644 --- a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java +++ b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java @@ -19,21 +19,18 @@ public class Main { private static DataAnalysisPyModule dataAnalysisPyModule; - private static final String PYTHON_URL = "https://www.graalvm.org/compatibility/module_results/python-module-testing-v241.csv"; - private static final String JAVASCRIPT_URL = "https://www.graalvm.org/compatibility/module_results/js-module-testing.csv"; - private static final Integer PASSING_RATE_COLUMN_INDEX = 3; public static Context initContext() throws IOException { - var resourcesDir = Path.of(System.getProperty("user.home"), ".cache", "graalpy-apache-arrow-guide.resources"); + var resourcesDir = Path.of(System.getProperty("user.home"), ".cache", "graalpy-apache-arrow-guide.resources"); // ① var fs = VirtualFileSystem.create(); - GraalPyResources.extractVirtualFileSystemResources(fs, resourcesDir); + GraalPyResources.extractVirtualFileSystemResources(fs, resourcesDir); // ② return GraalPyResources.contextBuilder(resourcesDir) - .option("python.PythonHome", "") - .option("python.WarnExperimentalFeatures", "false") - .allowHostAccess(HostAccess.ALL) - .allowHostClassLookup(_ -> true) - .allowNativeAccess(true) - .build(); + .option("python.PythonHome", "") + .option("python.WarnExperimentalFeatures", "false") + .allowHostAccess(HostAccess.ALL) + .allowHostClassLookup(_ -> true) + .allowNativeAccess(true) + .build(); // ③ } public static void initDataAnalysisPyModule(Context context) { @@ -41,6 +38,9 @@ public static void initDataAnalysisPyModule(Context context) { dataAnalysisPyModule = value.as(DataAnalysisPyModule.class); } + private static final String PYTHON_URL = "https://www.graalvm.org/compatibility/module_results/python-module-testing-v241.csv"; + private static final String JAVASCRIPT_URL = "https://www.graalvm.org/compatibility/module_results/js-module-testing.csv"; + private static final Integer PASSING_RATE_COLUMN_INDEX = 3; public static void main(String[] args) throws IOException, InterruptedException { From 1731eab483fcfc7f6172eaf16efdb2991369e52a Mon Sep 17 00:00:00 2001 From: Ivo Horak Date: Thu, 26 Jun 2025 10:06:15 +0200 Subject: [PATCH 11/12] Adjust the demo to version 24.2.1 --- graalpy/graalpy-apache-arrow-guide/README.md | 21 +++++++++---------- .../graalpy-apache-arrow-guide/build.gradle | 10 ++++----- .../gradle/libs.versions.toml | 14 ------------- graalpy/graalpy-apache-arrow-guide/pom.xml | 8 +++---- .../src/main/java/com/example/Main.java | 10 ++------- 5 files changed, 20 insertions(+), 43 deletions(-) delete mode 100644 graalpy/graalpy-apache-arrow-guide/gradle/libs.versions.toml diff --git a/graalpy/graalpy-apache-arrow-guide/README.md b/graalpy/graalpy-apache-arrow-guide/README.md index fbf14c1f..00abb8cc 100644 --- a/graalpy/graalpy-apache-arrow-guide/README.md +++ b/graalpy/graalpy-apache-arrow-guide/README.md @@ -2,7 +2,7 @@ ## 1. Getting Started -This guide demonstrates how to use the Java Apache Arrow implementation library (JArrow) with GraalPy, achieving zero-copy memory when transferring data between Java and Python. +This guide demonstrates how to use the Java Apache Arrow implementation library (JArrow) with GraalPy, achieving zero-copy memory when transferring data between Java and Python native extensions, such as Pandas. ## 2. What you will need * Basic knowledge of JArrow @@ -38,8 +38,8 @@ or `build.gradle` ``` -implementation "org.graalvm.python:python-community:24.2.0" // ① -implementation "org.graalvm.python:python-embedding:24.2.0" // ③ +implementation "org.graalvm.python:python-community:24.2.1" // ① +implementation "org.graalvm.python:python-embedding:24.2.1" // ③ ``` ❶ The `python-community` dependency is a meta-package that transitively depends on all resources and libraries to run GraalPy. @@ -90,8 +90,8 @@ There is also another option `arrow-memory-netty`. You can read more about Apach - pandas - pyarrow + pandas==2.2.3 + pyarrow==19.0.0 @@ -107,7 +107,7 @@ or `build.gradle` ``` plugins { - id 'org.graalvm.python' version '24.2.0' + id 'org.graalvm.python' version '24.2.1' // ... ``` @@ -116,8 +116,8 @@ plugins { graalPy { community = true packages = [ // ① - 'pandas', // ② - 'pyarrow' // ③ + 'pandas==2.2.3', // ② + 'pyarrow==19.0.0' // ③ ] } ``` @@ -138,7 +138,6 @@ public static Context initContext() throws IOException { var fs = VirtualFileSystem.create(); GraalPyResources.extractVirtualFileSystemResources(fs, resourcesDir); // ② return GraalPyResources.contextBuilder(resourcesDir) - .option("python.PythonHome", "") .option("python.WarnExperimentalFeatures", "false") .allowHostAccess(HostAccess.ALL) .allowHostClassLookup(_ -> true) @@ -147,9 +146,9 @@ public static Context initContext() throws IOException { } ``` -❶ Specify directory where resources will be copied. +❶ Specify directory where python resources will be copied. -❷ Copy the resources from Virtual File System to the directory specified. This step is needed because PyArrow ...? +❷ Copy the resources from Virtual File System (from the jar) to the directory specified in previous step. We are using real file system since ❸ Create the context with the given configuration. diff --git a/graalpy/graalpy-apache-arrow-guide/build.gradle b/graalpy/graalpy-apache-arrow-guide/build.gradle index 9d137add..cbeda1e0 100644 --- a/graalpy/graalpy-apache-arrow-guide/build.gradle +++ b/graalpy/graalpy-apache-arrow-guide/build.gradle @@ -1,5 +1,5 @@ plugins { - id 'org.graalvm.python' version '24.2.0' + id 'org.graalvm.python' version '24.2.1' // ... id 'application' id 'java' @@ -12,8 +12,8 @@ description = 'graalpy-apache-arrow-guide' graalPy { community = true packages = [ // ① - 'pandas', // ② - 'pyarrow' // ③ + 'pandas==2.2.3', // ② + 'pyarrow==19.0.0' // ③ ] } @@ -38,8 +38,8 @@ dependencies { implementation "org.apache.arrow:arrow-memory-unsafe:17.0.0" // ② // GraalPy - implementation "org.graalvm.python:python-community:24.2.0" // ① - implementation "org.graalvm.python:python-embedding:24.2.0" // ③ + implementation "org.graalvm.python:python-community:24.2.1" // ① + implementation "org.graalvm.python:python-embedding:24.2.1" // ③ } application { diff --git a/graalpy/graalpy-apache-arrow-guide/gradle/libs.versions.toml b/graalpy/graalpy-apache-arrow-guide/gradle/libs.versions.toml deleted file mode 100644 index 51f8fba0..00000000 --- a/graalpy/graalpy-apache-arrow-guide/gradle/libs.versions.toml +++ /dev/null @@ -1,14 +0,0 @@ -# This file was generated by the Gradle 'init' task. -# https://docs.gradle.org/current/userguide/platforms.html#sub::toml-dependencies-format - -[versions] -org-apache-arrow-arrow-memory-unsafe = "17.0.0" -org-apache-arrow-arrow-vector = "17.0.0" -org-graalvm-python-python-community = "26.0.0" -org-graalvm-python-python-embedding = "26.0.0" - -[libraries] -org-apache-arrow-arrow-memory-unsafe = { module = "org.apache.arrow:arrow-memory-unsafe", version.ref = "org-apache-arrow-arrow-memory-unsafe" } -org-apache-arrow-arrow-vector = { module = "org.apache.arrow:arrow-vector", version.ref = "org-apache-arrow-arrow-vector" } -org-graalvm-python-python-community = { module = "org.graalvm.python:python-community", version.ref = "org-graalvm-python-python-community" } -org-graalvm-python-python-embedding = { module = "org.graalvm.python:python-embedding", version.ref = "org-graalvm-python-python-embedding" } diff --git a/graalpy/graalpy-apache-arrow-guide/pom.xml b/graalpy/graalpy-apache-arrow-guide/pom.xml index eb53a736..9816c88b 100644 --- a/graalpy/graalpy-apache-arrow-guide/pom.xml +++ b/graalpy/graalpy-apache-arrow-guide/pom.xml @@ -13,9 +13,7 @@ 23 UTF-8 17.0.0 - - - 26.0.0 + 24.2.1 @@ -56,8 +54,8 @@ - pandas - pyarrow + pandas==2.2.3 + pyarrow==19.0.0 diff --git a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java index f5e2a3f6..7b80e30d 100644 --- a/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java +++ b/graalpy/graalpy-apache-arrow-guide/src/main/java/com/example/Main.java @@ -2,19 +2,14 @@ import java.io.IOException; import java.nio.file.Path; -import java.time.Duration; -import java.util.Map; -import java.util.concurrent.ExecutorService; -import java.util.concurrent.Executors; - import org.apache.arrow.memory.BufferAllocator; import org.apache.arrow.memory.RootAllocator; import org.apache.arrow.vector.Float8Vector; import org.graalvm.polyglot.Context; import org.graalvm.polyglot.HostAccess; import org.graalvm.polyglot.Value; -import org.graalvm.python.embedding.utils.GraalPyResources; -import org.graalvm.python.embedding.utils.VirtualFileSystem; +import org.graalvm.python.embedding.GraalPyResources; +import org.graalvm.python.embedding.VirtualFileSystem; public class Main { @@ -25,7 +20,6 @@ public static Context initContext() throws IOException { var fs = VirtualFileSystem.create(); GraalPyResources.extractVirtualFileSystemResources(fs, resourcesDir); // ② return GraalPyResources.contextBuilder(resourcesDir) - .option("python.PythonHome", "") .option("python.WarnExperimentalFeatures", "false") .allowHostAccess(HostAccess.ALL) .allowHostClassLookup(_ -> true) From 7152a9e5261a10db23bb35e3d65ad63766a18463 Mon Sep 17 00:00:00 2001 From: Ivo Horak Date: Fri, 27 Jun 2025 15:37:55 +0200 Subject: [PATCH 12/12] Add --add-opens into readme --- graalpy/graalpy-apache-arrow-guide/README.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/graalpy/graalpy-apache-arrow-guide/README.md b/graalpy/graalpy-apache-arrow-guide/README.md index 00abb8cc..8cf2fcf6 100644 --- a/graalpy/graalpy-apache-arrow-guide/README.md +++ b/graalpy/graalpy-apache-arrow-guide/README.md @@ -302,6 +302,11 @@ To run the application using Maven, first define `exec` plugin: ``` +Before running the application we need to open the internal java.nio package to Apache Arrow. To do this we need to export one environment variable: +```bash +export MAVEN_OPTS="--add-opens=java.base/java.nio=org.apache.arrow.memory.core,ALL-UNNAMED" +``` + Run the application using: ```bash ./mvnw exec:java -Dexec.mainClass="com.example.Main"