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Posted to java-dev@axis.apache.org by ja...@apache.org on 2005/06/23 12:59:38 UTC
svn commit: r193131 - in
/webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool:
./ AxisWorker.java ThreadPool.java ThreadWorker.java
Author: jaliya
Date: Thu Jun 23 03:59:35 2005
New Revision: 193131
URL: http://svn.apache.org/viewcvs?rev=193131&view=rev
Log:
Added a thread pool for Axis2
Added:
webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/
webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/AxisWorker.java
webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/ThreadPool.java
webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/ThreadWorker.java
Added: webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/AxisWorker.java
URL: http://svn.apache.org/viewcvs/webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/AxisWorker.java?rev=193131&view=auto
==============================================================================
--- webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/AxisWorker.java (added)
+++ webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/AxisWorker.java Thu Jun 23 03:59:35 2005
@@ -0,0 +1,10 @@
+package org.apache.axis.util.threadpool;
+
+/**
+ * Worker interface for Axis Workers.
+ * When a worker is handed over to the thread pool the method <code>doWork()</code>
+ * is called by the thread pool.
+ */
+public interface AxisWorker {
+ void doWork();
+}
Added: webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/ThreadPool.java
URL: http://svn.apache.org/viewcvs/webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/ThreadPool.java?rev=193131&view=auto
==============================================================================
--- webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/ThreadPool.java (added)
+++ webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/ThreadPool.java Thu Jun 23 03:59:35 2005
@@ -0,0 +1,103 @@
+package org.apache.axis.util.threadpool;
+
+import sun.misc.Queue;
+
+import java.util.*;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.axis.engine.AxisFault;
+
+
+/**
+ * This the thread pool for axis2. This class will be used a singleton
+ * across axis2 engine. <code>ThreadPool</code> is accepts <code>AxisWorkers</code> which has
+ * doWork method on them and execute this method, using one of the threads
+ * in the thread pool.
+ */
+
+public class ThreadPool {
+
+ protected static Log log = LogFactory.getLog(ThreadPool.class.getName());
+
+ private static int MAX_THREAD_COUNT = 10;
+ protected static long SLEEP_INTERVAL = 1000;
+ private static List threads;
+ private static List tasks;
+ private static boolean shoutDown;
+ private static ThreadPool instance;
+
+ private ThreadPool() {
+ threads = new ArrayList();
+ tasks = new ArrayList();
+ }
+
+
+ public static ThreadPool getInstance() {
+ if(log.isDebugEnabled())
+ log.debug("ThreadPool Created");
+
+ if (instance != null) {
+ return instance;
+ } else {
+ instance = new ThreadPool();
+ for (int i = 0; i < MAX_THREAD_COUNT; i++) {
+ ThreadWorker threadWorker = new ThreadWorker();
+ threadWorker.setPool(instance);
+ threads.add(threadWorker);
+ threadWorker.start();
+ }
+ return instance;
+ }
+ }
+
+ public void addWorker(AxisWorker worker) throws AxisFault {
+ if (shoutDown)
+ throw new AxisFault("Thread Pool is Shutting Down");
+ tasks.add(worker);
+ }
+
+ public synchronized AxisWorker getWorker() {
+ if (!tasks.isEmpty()) {
+ AxisWorker worker = (AxisWorker) tasks.get(0);
+ tasks.remove(worker);
+ return worker;
+ } else
+ return null;
+ }
+
+ /**
+ * This is the recommended shutdown method for the thread pool
+ * This will wait till all the workers that are already handed over to the
+ * thread pool get executed.
+ *
+ * @throws AxisFault
+ */
+ public void safeShutDown() throws AxisFault {
+ synchronized (this) {
+ shoutDown = true;
+ }
+ while (!tasks.isEmpty()) {
+ try {
+ Thread.sleep(SLEEP_INTERVAL);
+ } catch (InterruptedException e) {
+ throw new AxisFault("Error while safeShutDown", e);
+ }
+ }
+ forceShutDown();
+
+ }
+
+ /**
+ * A forceful shutdown mechanism for thread pool.
+ */
+ public void forceShutDown() {
+ if(log.isDebugEnabled())
+ log.debug("forceShutDown called. Thread workers will be stopped");
+ Iterator ite = threads.iterator();
+ while (ite.hasNext()) {
+ ThreadWorker worker = (ThreadWorker) ite.next();
+ worker.setStop(true);
+ }
+ }
+}
Added: webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/ThreadWorker.java
URL: http://svn.apache.org/viewcvs/webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/ThreadWorker.java?rev=193131&view=auto
==============================================================================
--- webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/ThreadWorker.java (added)
+++ webservices/axis/trunk/java/modules/core/src/org/apache/axis/util/threadpool/ThreadWorker.java Thu Jun 23 03:59:35 2005
@@ -0,0 +1,41 @@
+package org.apache.axis.util.threadpool;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+/**
+ * This is the thread worker for the Axis2's thread pool
+ * This will pick a worker from the thread pool and executes its
+ * <code>doWork()</code> method of the particular worker.
+ */
+public class ThreadWorker extends Thread {
+ protected static Log log = LogFactory.getLog(ThreadWorker.class.getName());
+ private boolean stop;
+ private ThreadPool pool;
+
+ public void setPool(ThreadPool pool) {
+ this.pool = pool;
+ }
+
+ public boolean isStop() {
+ return stop;
+ }
+
+ public void setStop(boolean stop) {
+ this.stop = stop;
+ }
+
+ public void run() {
+ while (!stop) {
+ AxisWorker axisWorker = null;
+ try {
+ axisWorker = pool.getWorker();
+ if (axisWorker != null)
+ axisWorker.doWork();
+ sleep(ThreadPool.SLEEP_INTERVAL);
+ } catch (InterruptedException e) {
+ log.error(e);
+ }
+ }
+ }
+}