Move source JAR/file processing to new class

Author: oshando

swan-pipeline/src/main/java/de/fraunhofer/iem/swan/io/doc/JavadocToXmlConverter.java

@@ -0,0 +1,96 @@
+package de.fraunhofer.iem.swan.io.doc;
+
+import edu.stanford.nlp.util.StringUtils;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.*;
+import java.util.jar.JarEntry;
+import java.util.jar.JarInputStream;
+
+public class SourceJarEvaluator {
+
+    /**
+     * Returns list of packages in a JAR file or directory.
+     *
+     * @param jarFile JAR file or directory
+     * @return array list of package names
+     */
+    public static ArrayList<String> getPackages(File jarFile) {
+
+        Set<String> packages = new HashSet<>();
+
+        if (jarFile.getName().endsWith(".jar")) {
+
+            try {
+                JarInputStream jarInputStream = new JarInputStream(new FileInputStream(jarFile.getAbsolutePath()));
+
+                JarEntry jarEntry;
+                while ((jarEntry = jarInputStream.getNextJarEntry()) != null) {
+
+                    if (jarEntry.getName().contains("META-INF"))
+                        continue;
+
+                    if (jarEntry.isDirectory() || jarEntry.getName().endsWith(".java"))
+                        packages.add(jarEntry.getName().replace("/", ".").replaceAll("(\\.|\\s)+$", ""));
+                }
+
+                if (packages.size() > 0) {
+                    return new ArrayList<>(packages);
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        } else if (jarFile.isDirectory()) {
+
+            for (File sub : Objects.requireNonNull(jarFile.listFiles())) {
+                //FileUtils.listFilesAndDirs(file, new NotFileFilter(TrueFileFilter.INSTANCE), DirectoryFileFilter.DIRECTORY)) {
+
+                String subDir = sub.getPath().replace(jarFile.getPath(), "");
+
+                if (subDir.length() > 1) {
+                    packages.add(subDir
+                            .replace("/", ".")
+                            .substring(1));
+                }
+            }
+            return new ArrayList<>(packages);
+        }
+        return new ArrayList<>();
+    }
+
+    public static String getRootPackages(File jarFile) {
+
+        return StringUtils.join(getRootPackages(getPackages(jarFile)), ":");
+
+    }
+
+    /**
+     * Returns root packages from given list of packages.
+     *
+     * @param packages
+     * @return
+     */
+    public static ArrayList<String> getRootPackages(ArrayList<String> packages) {
+
+        ArrayList<String> rootPackages = new ArrayList<>();
+
+        Collections.sort(packages);
+        String currentRoot = packages.get(0);
+        rootPackages.add(currentRoot);
+
+        for (String pack : packages) {
+
+          /*  if (!pack.contains(currentRoot)) {
+                currentRoot = pack;
+            }*/
+
+            if (pack.length() >= currentRoot.length() && !currentRoot.equals(pack.substring(0, currentRoot.length()))) {
+                rootPackages.add(pack);
+                currentRoot = pack;
+            }
+        }
+        return rootPackages;
+    }
+}