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 package com.sun.org.glassfish.external.statistics.impl;
28 import com.sun.org.glassfish.external.statistics.CountStatistic;
29 import java.util.concurrent.atomic.AtomicLong;
30 import java.util.Map;
31 import java.lang.reflect.*;
32
33 /**
34 * @author Sreenivas Munnangi
35 */
36 public final class CountStatisticImpl extends StatisticImpl
37 implements CountStatistic, InvocationHandler {
38
39 private long count = 0L;
40 private final long initCount;
41
42 private final CountStatistic cs =
43 (CountStatistic) Proxy.newProxyInstance(
44 CountStatistic.class.getClassLoader(),
45 new Class[] { CountStatistic.class },
46 this);
47
48 public CountStatisticImpl(long countVal, String name, String unit,
49 String desc, long sampleTime, long startTime) {
86
87 public synchronized void increment(long delta) {
88 count = count + delta;
89 sampleTime = System.currentTimeMillis();
90 }
91
92 public synchronized void decrement() {
93 count--;
94 sampleTime = System.currentTimeMillis();
95 }
96
97 @Override
98 public synchronized void reset() {
99 super.reset();
100 count = initCount;
101 sampleTime = -1L;
102 }
103
104 // todo: equals implementation
105 public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
106 Object result;
107 try {
108 result = m.invoke(this, args);
109 } catch (InvocationTargetException e) {
110 throw e.getTargetException();
111 } catch (Exception e) {
112 throw new RuntimeException("unexpected invocation exception: " +
113 e.getMessage());
114 } finally {
115 }
116 return result;
117 }
118 }
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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 package com.sun.org.glassfish.external.statistics.impl;
28 import com.sun.org.glassfish.external.statistics.CountStatistic;
29 import java.util.Map;
30 import java.lang.reflect.*;
31
32 /**
33 * @author Sreenivas Munnangi
34 */
35 public final class CountStatisticImpl extends StatisticImpl
36 implements CountStatistic, InvocationHandler {
37
38 private long count = 0L;
39 private final long initCount;
40
41 private final CountStatistic cs =
42 (CountStatistic) Proxy.newProxyInstance(
43 CountStatistic.class.getClassLoader(),
44 new Class[] { CountStatistic.class },
45 this);
46
47 public CountStatisticImpl(long countVal, String name, String unit,
48 String desc, long sampleTime, long startTime) {
85
86 public synchronized void increment(long delta) {
87 count = count + delta;
88 sampleTime = System.currentTimeMillis();
89 }
90
91 public synchronized void decrement() {
92 count--;
93 sampleTime = System.currentTimeMillis();
94 }
95
96 @Override
97 public synchronized void reset() {
98 super.reset();
99 count = initCount;
100 sampleTime = -1L;
101 }
102
103 // todo: equals implementation
104 public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
105 checkMethod(m);
106
107 Object result;
108 try {
109 result = m.invoke(this, args);
110 } catch (InvocationTargetException e) {
111 throw e.getTargetException();
112 } catch (Exception e) {
113 throw new RuntimeException("unexpected invocation exception: " +
114 e.getMessage());
115 }
116 return result;
117 }
118 }
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