001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.procedure2;
019
020import static org.junit.jupiter.api.Assertions.assertFalse;
021import static org.junit.jupiter.api.Assertions.assertTrue;
022
023import java.util.HashMap;
024import java.util.Map;
025import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility.NoopProcedure;
026import org.apache.hadoop.hbase.testclassification.MasterTests;
027import org.apache.hadoop.hbase.testclassification.SmallTests;
028import org.junit.jupiter.api.Tag;
029import org.junit.jupiter.api.Test;
030
031@Tag(MasterTests.TAG)
032@Tag(SmallTests.TAG)
033public class TestLockAndQueue {
034
035  @Test
036  public void testHasLockAccess() {
037    Map<Long, NoopProcedure<Void>> procMap = new HashMap<>();
038    for (long i = 1; i <= 10; i++) {
039      NoopProcedure<Void> proc = new NoopProcedure<>();
040      proc.setProcId(i);
041      if (i > 1) {
042        proc.setParentProcId(i - 1);
043        proc.setRootProcId(1);
044      }
045      procMap.put(i, proc);
046    }
047    LockAndQueue laq = new LockAndQueue(procMap::get);
048    for (long i = 1; i <= 10; i++) {
049      assertFalse(laq.hasLockAccess(procMap.get(i)));
050    }
051    for (long i = 1; i <= 10; i++) {
052      NoopProcedure<Void> procHasLock = procMap.get(i);
053      laq.tryExclusiveLock(procHasLock);
054      for (long j = 1; j < i; j++) {
055        assertFalse(laq.hasLockAccess(procMap.get(j)));
056      }
057      for (long j = i; j <= 10; j++) {
058        assertTrue(laq.hasLockAccess(procMap.get(j)));
059      }
060      laq.releaseExclusiveLock(procHasLock);
061    }
062  }
063}