content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 org.apache.activemq.artemis.tests.performance.jmh;
  
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.apache.activemq.artemis.api.core.SimpleString;
  import org.apache.activemq.artemis.core.config.WildcardConfiguration;
  import org.apache.activemq.artemis.core.postoffice.impl.AddressMap;
  import org.openjdk.jmh.annotations.Benchmark;
  import org.openjdk.jmh.annotations.Fork;
  import org.openjdk.jmh.annotations.Group;
  import org.openjdk.jmh.annotations.GroupThreads;
  import org.openjdk.jmh.annotations.Measurement;
  import org.openjdk.jmh.annotations.Param;
  import org.openjdk.jmh.annotations.Scope;
  import org.openjdk.jmh.annotations.Setup;
  import org.openjdk.jmh.annotations.State;
  import org.openjdk.jmh.annotations.Warmup;
  
  @State(Scope.Benchmark)
  @Fork(2)
  @Warmup(iterations = 5, time = 1)
  @Measurement(iterations = 8, time = 1)
  public class AddressMapPerfTest {
  
  
     public AddressMap<Object> objectAddressMap;
  
     @Param({"2", "8", "10"})
     int entriesLog2;
     int entries;
     private static final WildcardConfiguration WILDCARD_CONFIGURATION;
     SimpleString[] keys;
  
     static {
        WILDCARD_CONFIGURATION = new WildcardConfiguration();
        WILDCARD_CONFIGURATION.setAnyWords('>');
        WILDCARD_CONFIGURATION.setSingleWord('*');
     }
  
     @Setup
     public void init()  {
        objectAddressMap =
           new AddressMap<>(WILDCARD_CONFIGURATION.getAnyWordsString(), WILDCARD_CONFIGURATION.getSingleWordString(), WILDCARD_CONFIGURATION.getDelimiter());
  
        entries = 1 << entriesLog2;
        keys = new SimpleString[entries];
        for (int i = 0; i < entries; i++) {
           keys[i] = SimpleString.of("topic." + i % entriesLog2 + "." + i);
        }
     }
  
     @State(value = Scope.Thread)
     public static class ThreadState {
  
        long next;
        SimpleString[] keys;
        AtomicInteger counter = new AtomicInteger();
  
        @Setup
        public void init(AddressMapPerfTest benchmarkState) {
           keys = benchmarkState.keys;
        }
  
        public SimpleString nextKeyValue() {
           final long current = next;
           next = current + 1;
           final int index = (int) (current & (keys.length - 1));
           return keys[index];
        }
     }
  
     @Benchmark
     @Group("both")
     @GroupThreads(2)
     public void testPutWhileRemove(ThreadState state) {
        SimpleString s = state.nextKeyValue();
        objectAddressMap.put(s, s);
     }
  
     @Benchmark
     @Group("both")
     @GroupThreads(2)
     public void testRemoveWhilePut(ThreadState state) {
        SimpleString s = state.nextKeyValue();
        objectAddressMap.remove(s, s);
     }
  
     @Benchmark
     @GroupThreads(4)
     public void testPutAndVisit(final ThreadState state) throws Exception {
        SimpleString s = state.nextKeyValue();
        objectAddressMap.put(s, s);
  
        // look for it
        objectAddressMap.visitMatchingWildcards(s, value -> state.counter.incrementAndGet());
     }
  
  
  }
  
  