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.tool;
  
  import java.io.DataOutputStream;
  import java.lang.management.ManagementFactory;
  import java.lang.management.MemoryMXBean;
  import java.util.Properties;
  import java.util.concurrent.atomic.AtomicBoolean;
  
  public class MemoryMonitoringTool implements Runnable {
  
      protected Properties testSettings = new Properties();
      protected ReportGenerator reportGenerator = new ReportGenerator();
  
      private long checkpointInterval = 5000;          // 5 sec sample checkpointInterval
      private long resultIndex;
      private AtomicBoolean isRunning = new AtomicBoolean(false);
      private DataOutputStream dataDoutputStream;
      private MemoryMXBean memoryBean;
  
      public Properties getTestSettings() {
          return testSettings;
      }
  
      public void setTestSettings(Properties sysTestSettings) {
          this.testSettings = sysTestSettings;
      }
  
      public DataOutputStream getDataOutputStream() {
          return dataDoutputStream;
      }
  
      public void setDataOutputStream(DataOutputStream dataDoutputStream) {
          this.dataDoutputStream = dataDoutputStream;
      }
  
  
      public void stopMonitor() {
          isRunning.set(false);
      }
  
  
      public long getCheckpointInterval() {
          return checkpointInterval;
      }
  
      public void setCheckpointInterval(long checkpointInterval) {
          this.checkpointInterval = checkpointInterval;
      }
  
  
      public Thread startMonitor() {
  
          String intervalStr = this.getTestSettings().getProperty("checkpoint_interval");
          checkpointInterval = Integer.valueOf(intervalStr);
          this.getTestSettings().remove("checkpoint_interval");
  
          memoryBean = ManagementFactory.getMemoryMXBean();
          reportGenerator.setTestSettings(getTestSettings());
          addTestInformation();
  
          Thread t = new Thread(this);
          t.setName("Memory monitoring tool");
          isRunning.set(true);
          t.start();
  
          return t;
  
      }
  
  
      public void addTestInformation() {
          reportGenerator.setReportName(this.getTestSettings().getProperty("report_name"));
          reportGenerator.setReportDirectory(this.getTestSettings().getProperty("report_directory"));
          reportGenerator.startGenerateReport();
  
          reportGenerator.addTestInformation();
          reportGenerator.writeWithIndent(4, "<jvm_memory_settings>");
          reportGenerator.writeWithIndent(6, "<heap_memory>");
          reportGenerator.writeWithIndent(8, "<committed>" + memoryBean.getHeapMemoryUsage().getCommitted() + "</committed>");
          reportGenerator.writeWithIndent(8, "<max>" + memoryBean.getHeapMemoryUsage().getMax() + "</max>");
          reportGenerator.writeWithIndent(6, "</heap_memory>");
          reportGenerator.writeWithIndent(6, "<non_heap_memory>");
          reportGenerator.writeWithIndent(8, "<committed>" + memoryBean.getNonHeapMemoryUsage().getCommitted() + "</committed>");
          reportGenerator.writeWithIndent(8, "<max>" + memoryBean.getNonHeapMemoryUsage().getMax() + "</max>");
          reportGenerator.writeWithIndent(6, "</non_heap_memory>");
          reportGenerator.writeWithIndent(4, "</jvm_memory_settings>");
  
          reportGenerator.addClientSettings();
          reportGenerator.endTestInformation();
      }
  
  
      public void run() {
  
          long nonHeapMB = 0;
          long heapMB = 0;
          long oneMB = 1024 * 1024;
  
          reportGenerator.startTestResult(getCheckpointInterval());
          while (isRunning.get()) {
  
              try {
                  //wait every check point before getting the next memory usage
                  Thread.sleep(checkpointInterval);
  
                  nonHeapMB = memoryBean.getNonHeapMemoryUsage().getUsed() / oneMB;
                  heapMB = memoryBean.getHeapMemoryUsage().getUsed() / oneMB;
  
                  reportGenerator.writeWithIndent(6, "<memory_usage index='" + resultIndex
                                                  + "' non_heap_mb='" + nonHeapMB
                                                  + "' non_heap_bytes='"
                                                  + memoryBean.getNonHeapMemoryUsage().getUsed()
                                                  + "' heap_mb='" + heapMB
                                                  + "' heap_bytes='" + memoryBean.getHeapMemoryUsage().getUsed() + "'/>");
  
                  resultIndex++;
  
              } catch (Exception e) {
                  e.printStackTrace();
  
              }
  
  
          }
          reportGenerator.endTestResult();
          reportGenerator.stopGenerateReport();
  
      }
  
  
  }
  