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.ipc;
019
020import java.util.Collection;
021import java.util.Comparator;
022import java.util.Iterator;
023import java.util.concurrent.TimeUnit;
024import org.apache.hadoop.conf.Configuration;
025import org.apache.hadoop.hbase.conf.ConfigurationObserver;
026import org.apache.hadoop.hbase.util.BoundedPriorityBlockingQueue;
027
028/**
029 * Implementation of the PluggableBlockingQueue abstract class. Used to verify that the pluggable
030 * call queue type for the RpcExecutor can load correctly via the FQCN reflection semantics.
031 */
032public class TestPluggableQueueImpl extends PluggableBlockingQueue
033  implements ConfigurationObserver {
034
035  private final BoundedPriorityBlockingQueue<CallRunner> inner;
036  private static boolean configurationRecentlyChanged = false;
037
038  public TestPluggableQueueImpl(int maxQueueLength, PriorityFunction priority, Configuration conf) {
039    super(maxQueueLength, priority, conf);
040    Comparator<CallRunner> comparator = Comparator.comparingInt(r -> r.getRpcCall().getPriority());
041    inner = new BoundedPriorityBlockingQueue<>(maxQueueLength, comparator);
042    configurationRecentlyChanged = false;
043  }
044
045  @Override
046  public boolean add(CallRunner callRunner) {
047    return inner.add(callRunner);
048  }
049
050  @Override
051  public boolean offer(CallRunner callRunner) {
052    return inner.offer(callRunner);
053  }
054
055  @Override
056  public CallRunner remove() {
057    return inner.remove();
058  }
059
060  @Override
061  public CallRunner poll() {
062    return inner.poll();
063  }
064
065  @Override
066  public CallRunner element() {
067    return inner.element();
068  }
069
070  @Override
071  public CallRunner peek() {
072    return inner.peek();
073  }
074
075  @Override
076  public void put(CallRunner callRunner) throws InterruptedException {
077    inner.put(callRunner);
078  }
079
080  @Override
081  public boolean offer(CallRunner callRunner, long timeout, TimeUnit unit)
082    throws InterruptedException {
083    return inner.offer(callRunner, timeout, unit);
084  }
085
086  @Override
087  public CallRunner take() throws InterruptedException {
088    return inner.take();
089  }
090
091  @Override
092  public CallRunner poll(long timeout, TimeUnit unit) throws InterruptedException {
093    return inner.poll(timeout, unit);
094  }
095
096  @Override
097  public int remainingCapacity() {
098    return inner.remainingCapacity();
099  }
100
101  @Override
102  public boolean remove(Object o) {
103    return inner.remove(o);
104  }
105
106  @Override
107  public boolean containsAll(Collection<?> c) {
108    return inner.containsAll(c);
109  }
110
111  @Override
112  public boolean addAll(Collection<? extends CallRunner> c) {
113    return inner.addAll(c);
114  }
115
116  @Override
117  public boolean removeAll(Collection<?> c) {
118    return inner.removeAll(c);
119  }
120
121  @Override
122  public boolean retainAll(Collection<?> c) {
123    return inner.retainAll(c);
124  }
125
126  @Override
127  public void clear() {
128    inner.clear();
129  }
130
131  @Override
132  public int size() {
133    return inner.size();
134  }
135
136  @Override
137  public boolean isEmpty() {
138    return inner.isEmpty();
139  }
140
141  @Override
142  public boolean contains(Object o) {
143    return inner.contains(o);
144  }
145
146  @Override
147  public Iterator<CallRunner> iterator() {
148    return inner.iterator();
149  }
150
151  @Override
152  public Object[] toArray() {
153    return inner.toArray();
154  }
155
156  @Override
157  public <T> T[] toArray(T[] a) {
158    return inner.toArray(a);
159  }
160
161  @Override
162  public int drainTo(Collection<? super CallRunner> c) {
163    return inner.drainTo(c);
164  }
165
166  @Override
167  public int drainTo(Collection<? super CallRunner> c, int maxElements) {
168    return inner.drainTo(c, maxElements);
169  }
170
171  public static boolean hasObservedARecentConfigurationChange() {
172    return configurationRecentlyChanged;
173  }
174
175  @Override
176  public void onConfigurationChange(Configuration conf) {
177    configurationRecentlyChanged = true;
178  }
179}