src/share/jaxws_classes/com/sun/org/glassfish/external/statistics/impl/AverageRangeStatisticImpl.java

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   1 /*
   2  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 
  27 
  28 package com.sun.org.glassfish.external.statistics.impl;
  29 
  30 import java.util.concurrent.atomic.AtomicLong;
  31 import java.util.Map;
  32 import java.lang.reflect.*;
  33 import com.sun.org.glassfish.external.statistics.AverageRangeStatistic;
  34 
  35 /**
  36  * An implementation of AverageRangeStatistic that provides ways to change the
  37  * state externally through mutators.  Convenience class that is useful for
  38  * components that gather the statistical data.
  39  * By merely changing the count (which is a mandatory measurement), rest of the statistical
  40  * information could be deduced.
  41  */
  42 
  43 public final class AverageRangeStatisticImpl extends StatisticImpl implements
  44         AverageRangeStatistic, InvocationHandler {
  45 
  46     private long currentVal = 0L;
  47     private long highWaterMark = Long.MIN_VALUE;
  48     private long lowWaterMark = Long.MAX_VALUE;
  49     private long numberOfSamples = 0L;
  50     private long runningTotal = 0L;


 122 
 123     public synchronized void setCurrent(long curVal) {
 124         currentVal = curVal;
 125         lowWaterMark = (curVal >= lowWaterMark ? lowWaterMark : curVal);
 126         highWaterMark = (curVal >= highWaterMark ? curVal : highWaterMark);
 127         numberOfSamples++;
 128         runningTotal += curVal;
 129         sampleTime = System.currentTimeMillis();
 130     }
 131 
 132     public synchronized long getHighWaterMark() {
 133         return highWaterMark;
 134     }
 135 
 136     public synchronized long getLowWaterMark() {
 137         return lowWaterMark;
 138     }
 139 
 140     // todo: equals implementation
 141     public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {


 142         Object result;
 143         try {
 144             result = method.invoke(this, args);
 145         } catch (InvocationTargetException e) {
 146             throw e.getTargetException();
 147         } catch (Exception e) {
 148             throw new RuntimeException("unexpected invocation exception: " +
 149                        e.getMessage());
 150         } finally {
 151         }
 152         return result;
 153     }
 154 
 155 }
   1 /*
   2  * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 
  27 
  28 package com.sun.org.glassfish.external.statistics.impl;
  29 

  30 import java.util.Map;
  31 import java.lang.reflect.*;
  32 import com.sun.org.glassfish.external.statistics.AverageRangeStatistic;
  33 
  34 /**
  35  * An implementation of AverageRangeStatistic that provides ways to change the
  36  * state externally through mutators.  Convenience class that is useful for
  37  * components that gather the statistical data.
  38  * By merely changing the count (which is a mandatory measurement), rest of the statistical
  39  * information could be deduced.
  40  */
  41 
  42 public final class AverageRangeStatisticImpl extends StatisticImpl implements
  43         AverageRangeStatistic, InvocationHandler {
  44 
  45     private long currentVal = 0L;
  46     private long highWaterMark = Long.MIN_VALUE;
  47     private long lowWaterMark = Long.MAX_VALUE;
  48     private long numberOfSamples = 0L;
  49     private long runningTotal = 0L;


 121 
 122     public synchronized void setCurrent(long curVal) {
 123         currentVal = curVal;
 124         lowWaterMark = (curVal >= lowWaterMark ? lowWaterMark : curVal);
 125         highWaterMark = (curVal >= highWaterMark ? curVal : highWaterMark);
 126         numberOfSamples++;
 127         runningTotal += curVal;
 128         sampleTime = System.currentTimeMillis();
 129     }
 130 
 131     public synchronized long getHighWaterMark() {
 132         return highWaterMark;
 133     }
 134 
 135     public synchronized long getLowWaterMark() {
 136         return lowWaterMark;
 137     }
 138 
 139     // todo: equals implementation
 140     public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
 141         checkMethod(method);
 142 
 143         Object result;
 144         try {
 145             result = method.invoke(this, args);
 146         } catch (InvocationTargetException e) {
 147             throw e.getTargetException();
 148         } catch (Exception e) {
 149             throw new RuntimeException("unexpected invocation exception: " +
 150                        e.getMessage());

 151         }
 152         return result;
 153     }
 154 
 155 }