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| package org.jboss.cache.lock; |
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| |
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| import junit.framework.TestCase; |
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| import org.jboss.cache.CacheImpl; |
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| import org.jboss.cache.DefaultCacheFactory; |
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| import org.jboss.cache.config.Configuration.CacheMode; |
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| import org.jboss.cache.factories.UnitTestCacheFactory; |
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| import org.jboss.cache.misc.TestingUtil; |
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| |
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| import javax.transaction.Synchronization; |
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| import javax.transaction.Transaction; |
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| import javax.transaction.TransactionManager; |
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| import java.util.HashMap; |
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| import java.util.Map; |
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| import java.util.Set; |
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| |
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| |
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| public class BreakDeadMemberLocksTest extends TestCase |
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| { |
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| |
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| private Map caches; |
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| |
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| protected void setUp() throws Exception
|
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| { |
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| super.setUp();
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| |
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| caches = new HashMap();
|
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| } |
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| |
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| public void testBreakDeadMemberLocks() throws Exception
|
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| { |
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| CacheImpl cacheA = createCache("A");
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| |
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| cacheA.put("/1/A", "1", "A");
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| cacheA.put("/1/A", "2", "A");
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| cacheA.put("/2/A", "1", "A");
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| cacheA.put("/2/A", "2", "A");
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| cacheA.put("/1/A/I", "1", "A");
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| cacheA.put("/1/A/I", "2", "A");
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| |
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| CacheImpl cacheB = createCache("B");
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| |
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| TestingUtil.blockUntilViewsReceived(new CacheImpl[]{cacheA, cacheB}, 60000);
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| |
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| final TransactionManager tm = cacheB.getTransactionManager();
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| tm.begin();
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| final Transaction tx = tm.getTransaction();
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| |
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| cacheB.put("/1/A", "1", "B");
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| cacheB.put("/1/A", "2", "B");
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| cacheB.put("/2/A", "1", "B");
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| cacheB.put("/2/A", "2", "B");
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| cacheB.put("/1/A/I", "1", "B");
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| cacheB.put("/1/A/I", "2", "B");
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| cacheB.put("/EXISTS", "KEY", "B");
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| |
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| Object monitor = new Object();
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| HangSync sync = new HangSync(monitor);
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| tx.registerSynchronization(sync);
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| |
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| Thread t = new Thread()
|
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| { |
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| public void run()
|
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| { |
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| try
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| { |
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| tm.resume(tx);
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| tx.commit();
|
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| } |
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| catch (Exception e) {} |
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| } |
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| }; |
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| |
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| synchronized (monitor)
|
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| { |
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| t.start();
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| |
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| while (!sync.hung)
|
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| { |
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| monitor.wait(500);
|
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| } |
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| } |
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| |
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| tm.suspend();
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| |
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| |
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| assertTrue(cacheA.exists("/EXISTS"));
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| |
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| cacheB.stop();
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| cacheB.destroy();
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| |
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| while (cacheA.getMembers().size() > 1)
|
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| { |
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| try
|
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| { |
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| Thread.sleep(100);
|
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| } |
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| catch (InterruptedException e) {} |
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| } |
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| |
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| assertEquals("A", cacheA.get("/1/A", "1"));
|
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| assertEquals("A", cacheA.get("/1/A", "2"));
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| assertEquals("A", cacheA.get("/2/A", "1"));
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| assertEquals("A", cacheA.get("/2/A", "2"));
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| assertEquals("A", cacheA.get("/1/A/I", "1"));
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| assertEquals("A", cacheA.get("/1/A/I", "2"));
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| |
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| if (t.isAlive())
|
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| { |
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| t.interrupt();
|
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| } |
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| } |
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| |
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2
| protected CacheImpl createCache(String cacheID) throws Exception
|
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| { |
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| if (caches.get(cacheID) != null)
|
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| { |
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0
| throw new IllegalStateException(cacheID + " already created");
|
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| } |
148 |
| |
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2
| CacheImpl cache = (CacheImpl) DefaultCacheFactory.getInstance().createCache(false);
|
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| cache.setConfiguration(UnitTestCacheFactory.createConfiguration(CacheMode.REPL_SYNC));
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| |
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| cache.create();
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| cache.start();
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| |
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| caches.put(cacheID, cache);
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| |
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| return cache;
|
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| } |
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| |
160 |
1
| protected void tearDown() throws Exception
|
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| { |
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| super.tearDown();
|
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| |
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| Set keys = caches.keySet();
|
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| String[] cacheIDs = new String[keys.size()];
|
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| cacheIDs = (String[]) keys.toArray(cacheIDs);
|
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| for (int i = 0; i < cacheIDs.length; i++)
|
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| { |
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| stopCache(cacheIDs[i]);
|
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| } |
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| } |
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| |
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2
| protected void stopCache(String id)
|
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| { |
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| CacheImpl cache = (CacheImpl) caches.get(id);
|
176 |
2
| if (cache != null)
|
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| { |
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| try
|
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| { |
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| cache.stop();
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| cache.destroy();
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| caches.remove(id);
|
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| } |
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| catch (Exception e) |
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| { |
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0
| System.out.println("Exception stopping cache " + e.getMessage());
|
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0
| e.printStackTrace(System.out);
|
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| } |
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| } |
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| } |
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| |
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| class HangSync implements Synchronization |
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| { |
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| private boolean hung = false; |
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| private Object monitor; |
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| |
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1
| HangSync(Object monitor)
|
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| { |
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| this.monitor = monitor;
|
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| } |
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| |
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1
| public void afterCompletion(int arg0)
|
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| { |
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| } |
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| |
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| public void beforeCompletion()
|
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| { |
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| hung = true;
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| synchronized (monitor)
|
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| { |
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| monitor.notifyAll();
|
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| } |
213 |
1
| try
|
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| { |
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1
| Thread.sleep(30000);
|
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| } |
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| catch (InterruptedException e) {} |
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| } |
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| |
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| |
221 |
| } |
222 |
| } |