/*
* Copyright 2012-2013 Aurelius LLC
* 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.thinkaurelius.titan.diskstorage.locking;
import com.thinkaurelius.titan.diskstorage.hbase.HBaseTransaction;
import com.thinkaurelius.titan.diskstorage.util.time.TimestampProvider;
import com.thinkaurelius.titan.diskstorage.util.time.Timestamps;
import com.thinkaurelius.titan.diskstorage.StaticBuffer;
import com.thinkaurelius.titan.diskstorage.util.KeyColumn;
import com.thinkaurelius.titan.diskstorage.util.StaticArrayBuffer;
import org.mockito.Mockito;
import org.testng.Assert;
import org.testng.annotations.Test;
import java.util.concurrent.TimeUnit;
public class LocalLockMediatorTest {
private static final String LOCK_NAMESPACE = "test";
private static final StaticBuffer LOCK_ROW = StaticArrayBuffer.of(new byte[]{1});
private static final StaticBuffer LOCK_COL = StaticArrayBuffer.of(new byte[]{1});
private static final KeyColumn kc = new KeyColumn(LOCK_ROW, LOCK_COL);
private static final HBaseTransaction mockTx1 = Mockito.mock(HBaseTransaction.class);
private static final HBaseTransaction mockTx2 = Mockito.mock(HBaseTransaction.class);
@Test
public void testLock() throws InterruptedException {
TimestampProvider times = Timestamps.MICRO;
LocalLockMediator<HBaseTransaction> llm =
new LocalLockMediator<HBaseTransaction>(LOCK_NAMESPACE, times);
//Expire immediately
Assert.assertTrue(llm.lock(kc, mockTx1, times.getTime(0, TimeUnit.NANOSECONDS)));
Assert.assertTrue(llm.lock(kc, mockTx2, times.getTime(Long.MAX_VALUE, TimeUnit.NANOSECONDS)));
llm = new LocalLockMediator<HBaseTransaction>(LOCK_NAMESPACE, times);
//Expire later
Assert.assertTrue(llm.lock(kc, mockTx1, times.getTime(Long.MAX_VALUE, TimeUnit.NANOSECONDS)));
//So second lock should fail on same keyCol
Assert.assertFalse(llm.lock(kc, mockTx2, times.getTime(Long.MAX_VALUE, TimeUnit.NANOSECONDS)));
//Unlock
Assert.assertTrue(llm.unlock(kc, mockTx1));
//Now locking should succeed
Assert.assertTrue(llm.lock(kc, mockTx2, times.getTime(Long.MAX_VALUE, TimeUnit.NANOSECONDS)));
}
}