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/*
* Copyright 2008 Amazon Technologies, Inc. or its affiliates.
* Amazon, Amazon.com and Carbonado are trademarks or registered trademarks
* of Amazon Technologies, Inc. or its affiliates. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.amazon.carbonado.txn;
import java.util.concurrent.Callable;
import java.util.concurrent.Executors;
import java.util.concurrent.ExecutorService;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import com.amazon.carbonado.IsolationLevel;
import com.amazon.carbonado.Transaction;
/**
*
*
* @author Brian S O'Neill
*/
public class TestTransactionManager extends TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run(suite());
}
public static TestSuite suite() {
return new TestSuite(TestTransactionManager.class);
}
TM mTxnMgr;
public TestTransactionManager(String name) {
super(name);
}
protected void setUp() {
mTxnMgr = new TM();
}
public void testAttachDetach() throws Exception {
Transaction txn = mTxnMgr.localScope().enter(null);
// This batch of tests just ensures no IllegalStateExceptions are thrown.
{
// Should do nothing.
txn.attach();
// Should detach.
txn.detach();
// Should do nothing.
txn.detach();
// Should attach.
txn.attach();
}
// Set up for multi-threaded tests.
ExecutorService es = Executors.newSingleThreadExecutor();
final Transaction txn2 = es.submit(new Callable<Transaction>() {
public Transaction call() {
return mTxnMgr.localScope().enter(null);
}
}).get();
try {
txn2.attach();
fail();
} catch (IllegalStateException e) {
}
try {
txn2.detach();
fail();
} catch (IllegalStateException e) {
}
txn.detach();
try {
txn2.attach();
fail();
} catch (IllegalStateException e) {
}
es.submit(new Runnable() {
public void run() {
txn2.detach();
}
}).get();
txn2.attach();
txn2.detach();
txn2.attach();
try {
txn.attach();
fail();
} catch (IllegalStateException e) {
}
txn.detach();
txn2.exit();
try {
txn.attach();
fail();
} catch (IllegalStateException e) {
}
txn.detach();
txn2.detach();
txn.detach();
txn.attach();
txn.detach();
es.shutdown();
}
private static class Txn {
}
private static class TM extends TransactionManager<Txn> {
protected IsolationLevel selectIsolationLevel(Transaction parent, IsolationLevel level) {
return IsolationLevel.READ_UNCOMMITTED;
}
protected boolean supportsForUpdate() {
return true;
}
protected Txn createTxn(Txn parent, IsolationLevel level) {
return new Txn();
}
protected boolean commitTxn(Txn txn) {
return false;
}
protected void abortTxn(Txn txn) {
}
}
}
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