+ 增加定时任务，每30-60分钟请求一下接口，确保 Refresh Token 不过期

Author: eritpchy

proguard-rules.pro

@@ -29,3 +29,4 @@
 -keep class net.sf.webdav.WebdavServlet
 -keep class com.github.zxbu.webdavteambition.store.AliYunDriverFileSystemStore
 -keep class com.github.zxbu.webdavteambition.filter.ErrorFilter
+-keep class com.github.zxbu.webdavteambition.store.StartupService

src/main/java/com/github/zxbu/webdavteambition/config/AliYunDriverCronTask.java

@@ -2,27 +2,57 @@
 
 import com.github.zxbu.webdavteambition.model.result.TFile;
 import com.github.zxbu.webdavteambition.store.AliYunDriverClientService;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.scheduling.annotation.Scheduled;
-import org.springframework.stereotype.Component;
 
-@Component
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+
 public class AliYunDriverCronTask {
 
-    @Autowired
-    private AliYunDriverClientService aliYunDriverClientService;
+    private static final Logger LOGGER = LoggerFactory.getLogger(AliYunDriverCronTask.class);
+
+    private final AliYunDriverClientService mAliYunDriverClientService;
+
+    private ScheduledExecutorService mTaskPool = Executors.newScheduledThreadPool(1);
+
+
+    public AliYunDriverCronTask(AliYunDriverClientService service) {
+        mAliYunDriverClientService = service;
+    }
 
     /**
-     * 每隔5分钟请求一下接口，保证token不过期
+     * 每隔30-60分钟请求一下接口，保证token不过期
      */
-    @Scheduled(initialDelay = 30 * 1000, fixedDelay = 5 * 60 * 1000)
     public void refreshToken() {
         try {
-            TFile root = aliYunDriverClientService.getTFileByPath("/");
-            aliYunDriverClientService.getTFiles(root.getFile_id());
-        } catch (Exception e) {
-            // nothing
+            LOGGER.info("定时刷新 Refresh Token 任务开始");
+            TFile root = mAliYunDriverClientService.getTFileByPath("/");
+            mAliYunDriverClientService.getTFiles(root.getFile_id());
+        } catch (Throwable e) {
+            LOGGER.error("", e);
+        } finally {
+            LOGGER.info("定时刷新 Refresh Token 任务结束");
         }
+    }
+
+    public void start() {
+        mTaskPool.schedule(new Runnable() {
+            @Override
+            public void run() {
+                refreshToken();
+                mTaskPool.schedule(this, getRandomNumber(30, 60), TimeUnit.MINUTES);
+            }
+        }, 10, TimeUnit.SECONDS);
+    }
+
+    public void stop() {
+        mTaskPool.shutdownNow();
+    }
 
+    private int getRandomNumber(int min, int max) {
+        return (int) ((Math.random() * (max - min)) + min);
     }
 }

src/main/java/com/github/zxbu/webdavteambition/store/AliYunDriverClientService.java

@@ -38,21 +38,21 @@
 
 public class AliYunDriverClientService {
 
-    private static class Holder {
-        private static AliYunDriverClientService sAliYunDriverClientService;
-
-        static {
-            ContextHandler.Context webContext = WebAppContext.getCurrentContext();
-            Context context = (Context) webContext.getAttribute("org.mortbay.ijetty.context");
-            AliYunDriveProperties properties = new AliYunDriveProperties();
-            properties.setRefreshToken(String.valueOf(webContext.getAttribute(context.getString(net.xdow.library.R.string.config_refresh_token))));
-            properties.setWorkDir(context.getFilesDir().getAbsolutePath() + File.separator);
-            sAliYunDriverClientService = new AliYunDriverClientService(new AliYunDriverClient(properties));
-        }
-    }
-
+    private static AliYunDriverClientService sInstance;
     public static AliYunDriverClientService getInstance() {
-        return Holder.sAliYunDriverClientService;
+        if (sInstance == null) {
+            synchronized (AliYunDriverClientService.class) {
+                if (sInstance == null) {
+                    ContextHandler.Context webContext = WebAppContext.getCurrentContext();
+                    Context context = (Context) webContext.getAttribute("org.mortbay.ijetty.context");
+                    AliYunDriveProperties properties = new AliYunDriveProperties();
+                    properties.setRefreshToken(String.valueOf(webContext.getAttribute(context.getString(net.xdow.library.R.string.config_refresh_token))));
+                    properties.setWorkDir(context.getFilesDir().getAbsolutePath() + File.separator);
+                    sInstance = new AliYunDriverClientService(new AliYunDriverClient(properties));
+                }
+            }
+        }
+        return sInstance;
     }
 
     private static final Logger LOGGER = LoggerFactory.getLogger(AliYunDriverClientService.class);

src/main/java/com/github/zxbu/webdavteambition/store/StartupService.java

@@ -0,0 +1,42 @@
+package com.github.zxbu.webdavteambition.store;
+
+import com.github.zxbu.webdavteambition.config.AliYunDriverCronTask;
+
+import java.io.IOException;
+
+import javax.servlet.GenericServlet;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+
+public class StartupService extends GenericServlet {
+
+    private AliYunDriverCronTask mAliYunDriverCronTask;
+
+    @Override
+    public void init() throws ServletException {
+        super.init();
+        AliYunDriverCronTask task = mAliYunDriverCronTask;
+        if (task != null) {
+            task.stop();
+        }
+        task = new AliYunDriverCronTask(AliYunDriverClientService.getInstance());
+        mAliYunDriverCronTask = task;
+        task.start();
+    }
+
+    @Override
+    public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException {
+
+    }
+
+    @Override
+    public void destroy() {
+        super.destroy();
+        AliYunDriverCronTask task = mAliYunDriverCronTask;
+        if (task != null) {
+            task.stop();
+            mAliYunDriverCronTask = null;
+        }
+    }
+}

src/main/webapp/WEB-INF/web.xml

@@ -4,6 +4,11 @@
     xmlns="http://java.sun.com/xml/ns/javaee"
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
 
+    <servlet>
+        <servlet-name>StartupService</servlet-name>
+        <servlet-class>com.github.zxbu.webdavteambition.store.StartupService</servlet-class>
+        <load-on-startup>1</load-on-startup>
+    </servlet>
     <servlet>
         <servlet-name>WebdavServlet</servlet-name>
         <servlet-class>net.sf.webdav.WebdavServlet</servlet-class>