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*
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* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
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* License along with this software; if not, write to the Free
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package org.infinispan.lock;
import org.infinispan.commands.control.LockControlCommand;
import org.infinispan.config.Configuration;
import org.infinispan.context.impl.TxInvocationContext;
import org.infinispan.interceptors.base.CommandInterceptor;
import org.infinispan.test.MultipleCacheManagersTest;
import org.infinispan.transaction.LockingMode;
import org.testng.annotations.Test;
import java.util.Collections;
import static org.testng.Assert.assertEquals;
/**
* This test makes sure that once a remote lock has been acquired, this acquisition attempt won't happen again during
* the same transaction.
*
* @author Mircea Markus
* @since 5.1
*/
@Test(groups = "functional", testName = "lock.CheckRemoteLockAcquiredOnlyOnceTest")
public class CheckRemoteLockAcquiredOnlyOnceTest extends MultipleCacheManagersTest {
protected ControlInterceptor controlInterceptor;
protected Object key;
protected Configuration.CacheMode mode = Configuration.CacheMode.REPL_SYNC;
@Override
protected void createCacheManagers() throws Throwable {
final Configuration c = getDefaultClusteredConfig(mode, true);
c.fluent().transaction().lockingMode(LockingMode.PESSIMISTIC);
createCluster(c, 2);
waitForClusterToForm();
controlInterceptor = new ControlInterceptor();
cache(0).getAdvancedCache().addInterceptor(controlInterceptor, 1);
key = "k";
}
public void testLockThenLock() throws Exception {
testLockThenOperation(new CacheOperation() {
@Override
public void execute() {
advancedCache(1).lock(key);
}
});
}
public void testLockThenPut() throws Exception {
testLockThenOperation(new CacheOperation() {
@Override
public void execute() {
cache(1).put(key, "v");
}
});
}
public void testLockThenRemove() throws Exception {
testLockThenOperation(new CacheOperation() {
@Override
public void execute() {
cache(1).remove(key);
}
});
}
public void testLockThenReplace() throws Exception {
testLockThenOperation(new CacheOperation() {
@Override
public void execute() {
cache(1).replace(key, "", "v");
}
});
}
public void testLockThenPutAll() throws Exception {
testLockThenOperation(new CacheOperation() {
@Override
public void execute() {
cache(1).putAll(Collections.singletonMap(key, "value"));
}
});
}
public void testPutThenLock() throws Exception {
testOperationThenLock(new CacheOperation() {
@Override
public void execute() {
cache(1).put(key, "v");
}
});
}
public void testRemoveThenLock() throws Exception {
testOperationThenLock(new CacheOperation() {
@Override
public void execute() {
cache(1).remove(key);
}
});
}
public void testReplaceThenLock() throws Exception {
testOperationThenLock(new CacheOperation() {
@Override
public void execute() {
cache(1).replace(key, "", "v");
}
});
}
public void testPutAllThenLock() throws Exception {
testOperationThenLock(new CacheOperation() {
@Override
public void execute() {
cache(1).putAll(Collections.singletonMap(key, "value"));
}
});
}
private void testLockThenOperation(CacheOperation o) throws Exception {
assert controlInterceptor.remoteInvocations == 0;
tm(1).begin();
advancedCache(1).lock(key);
assert lockManager(0).isLocked(key);
assertEquals(controlInterceptor.remoteInvocations, 1);
for (int i = 0; i < 100; i++) {
o.execute();
}
assertEquals(controlInterceptor.remoteInvocations, 1);
tm(1).commit();
assertEquals(controlInterceptor.remoteInvocations, 1);
controlInterceptor.remoteInvocations = 0;
}
private void testOperationThenLock(CacheOperation o) throws Exception {
assert controlInterceptor.remoteInvocations == 0;
tm(1).begin();
for (int i = 0; i < 100; i++) {
o.execute();
}
assert lockManager(0).isLocked(key);
assertEquals(controlInterceptor.remoteInvocations, 1);
advancedCache(1).lock(key);
assertEquals(controlInterceptor.remoteInvocations, 1);
tm(1).commit();
assertEquals(controlInterceptor.remoteInvocations, 1);
controlInterceptor.remoteInvocations = 0;
}
public static class ControlInterceptor extends CommandInterceptor {
volatile int remoteInvocations = 0;
@Override
public Object visitLockControlCommand(TxInvocationContext ctx, LockControlCommand command) throws Throwable {
if (!ctx.isOriginLocal()) remoteInvocations++;
return super.visitLockControlCommand(ctx, command);
}
}
public interface CacheOperation {
void execute();
}
}