PerfRate.java

/**
 * 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.perf;

/**
 *
 */
public class PerfRate {

   protected int totalCount;
   protected int count;
   protected long startTime = System.currentTimeMillis();

   /**
    * @return Returns the count.
    */
   public int getCount() {
      return totalCount;
   }

   public synchronized void increment() {
      totalCount++;
      count++;
   }

   public int getRate() {
      long endTime = System.currentTimeMillis();
      long totalTime = endTime - startTime;
      int result = (int) ((count * 1000) / totalTime);
      return result;
   }

   /**
    * Resets the rate sampling.
    */
   public synchronized PerfRate cloneAndReset() {
      PerfRate rc = new PerfRate();
      rc.totalCount = totalCount;
      rc.count = count;
      rc.startTime = startTime;
      count = 0;
      startTime = System.currentTimeMillis();
      return rc;
   }

   /**
    * Resets the rate sampling.
    */
   public void reset() {
      count = 0;
      startTime = System.currentTimeMillis();
   }

   /**
    * @return Returns the totalCount.
    */
   public int getTotalCount() {
      return totalCount;
   }

   /**
    * @param totalCount The totalCount to set.
    */
   public void setTotalCount(int totalCount) {
      this.totalCount = totalCount;
   }
}