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.timing.util;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
  import org.apache.activemq.artemis.api.core.ActiveMQBuffers;
  import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
  import org.apache.activemq.artemis.utils.UTF8Util;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.Test;
  
  public class UTF8Test extends ActiveMQTestBase {
  
     private static final String str = "abcdef&^*&!^ghijkl\uB5E2\uCAC7\uB2BB\uB7DD\uB7C7\uB3A3\uBCE4\uB5A5" + "abcdef&^*&!^ghijkl\uB5E2\uCAC7\uB2BB\uB7DD\uB7C7\uB3A3\uBCE4\uB5A5" + "abcdef&^*&!^ghijkl\uB5E2\uCAC7\uB2BB\uB7DD\uB7C7\uB3A3\uBCE4\uB5A5" + "abcdef&^*&!^ghijkl\uB5E2\uCAC7\uB2BB\uB7DD\uB7C7\uB3A3\uBCE4\uB5A5" + "abcdef&^*&!^ghijkl\uB5E2\uCAC7\uB2BB\uB7DD\uB7C7\uB3A3\uBCE4\uB5A5" + "abcdef&^*&!^ghijkl\uB5E2\uCAC7\uB2BB\uB7DD\uB7C7\uB3A3\uBCE4\uB5A5" + "abcdef&^*&!^ghijkl\uB5E2\uCAC7\uB2BB\uB7DD\uB7C7\uB3A3\uBCE4\uB5A5" + "abcdef&^*&!^ghijkl\uB5E2\uCAC7\uB2BB\uB7DD\uB7C7\uB3A3\uBCE4\uB5A5" + "abcdef&^*&!^ghijkl\uB5E2\uCAC7\uB2BB\uB7DD\uB7C7\uB3A3\uBCE4\uB5A5";
  
     final int TIMES = 5;
  
     final int numberOfIteractions = 1000000;
  
     //It's needed to be sure that the JVM won't perform Dead Code Elimination
     //on String/ActiveMQBuffer operations
     private volatile Object blackHole;
  
     @Test
     public void testWriteUTF() throws Exception {
        ActiveMQBuffer buffer = ActiveMQBuffers.fixedBuffer(10 * 1024);
  
        for (int c = 0; c < TIMES; c++) {
           final long start = System.currentTimeMillis();
           for (long i = 0; i < numberOfIteractions; i++) {
              buffer.clear();
              buffer.writeUTF(str);
              blackHole = buffer;
           }
           final long spentTime = System.currentTimeMillis() - start;
  
           System.out.println("Time writeUTF = " + spentTime + " ms");
           System.out.println("Throughput writeUTF = " + numberOfIteractions / spentTime + " ops/ms");
        }
     }
  
     @Test
     public void testReadUTF() throws Exception {
        ActiveMQBuffer buffer = ActiveMQBuffers.fixedBuffer(10 * 1024);
  
        buffer.writeUTF(str);
  
        for (int c = 0; c < TIMES; c++) {
           final long start = System.currentTimeMillis();
           for (long i = 0; i < numberOfIteractions; i++) {
              buffer.resetReaderIndex();
              String newstr = buffer.readUTF();
              assertEquals(str, newstr);
              blackHole = newstr;
           }
           final long spentTime = System.currentTimeMillis() - start;
  
           System.out.println("Time readUTF = " + spentTime + " ms");
           System.out.println("Throughput readUTF = " + numberOfIteractions / spentTime + " ops/ms");
        }
  
     }
  
     @Override
     @AfterEach
     public void tearDown() throws Exception {
        UTF8Util.clearBuffer();
        super.tearDown();
     }
  }
  