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 import com.sun.org.glassfish.external.statistics.RangeStatistic;
30 import java.util.concurrent.atomic.AtomicLong;
31 import java.util.Map;
32 import java.lang.reflect.*;
33
34 /**
35 * @author Sreenivas Munnangi
36 */
37 public final class RangeStatisticImpl extends StatisticImpl
38 implements RangeStatistic, InvocationHandler {
39
40 private long currentVal = 0L;
41 private long highWaterMark = Long.MIN_VALUE;
42 private long lowWaterMark = Long.MAX_VALUE;
43 private final long initCurrentVal;
44 private final long initHighWaterMark;
45 private final long initLowWaterMark;
46
47 private final RangeStatistic rs =
48 (RangeStatistic) Proxy.newProxyInstance(
49 RangeStatistic.class.getClassLoader(),
50 new Class[] { RangeStatistic.class },
108 }
109
110 @Override
111 public synchronized void reset() {
112 super.reset();
113 currentVal = initCurrentVal;
114 highWaterMark = initHighWaterMark;
115 lowWaterMark = initLowWaterMark;
116 sampleTime = -1L;
117 }
118
119 public synchronized String toString() {
120 return super.toString() + NEWLINE +
121 "Current: " + getCurrent() + NEWLINE +
122 "LowWaterMark: " + getLowWaterMark() + NEWLINE +
123 "HighWaterMark: " + getHighWaterMark();
124 }
125
126 // todo: equals implementation
127 public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
128 Object result;
129 try {
130 result = m.invoke(this, args);
131 } catch (InvocationTargetException e) {
132 throw e.getTargetException();
133 } catch (Exception e) {
134 throw new RuntimeException("unexpected invocation exception: " +
135 e.getMessage());
136 } finally {
137 }
138 return result;
139 }
140 }
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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
28 package com.sun.org.glassfish.external.statistics.impl;
29 import com.sun.org.glassfish.external.statistics.RangeStatistic;
30 import java.util.Map;
31 import java.lang.reflect.*;
32
33 /**
34 * @author Sreenivas Munnangi
35 */
36 public final class RangeStatisticImpl extends StatisticImpl
37 implements RangeStatistic, InvocationHandler {
38
39 private long currentVal = 0L;
40 private long highWaterMark = Long.MIN_VALUE;
41 private long lowWaterMark = Long.MAX_VALUE;
42 private final long initCurrentVal;
43 private final long initHighWaterMark;
44 private final long initLowWaterMark;
45
46 private final RangeStatistic rs =
47 (RangeStatistic) Proxy.newProxyInstance(
48 RangeStatistic.class.getClassLoader(),
49 new Class[] { RangeStatistic.class },
107 }
108
109 @Override
110 public synchronized void reset() {
111 super.reset();
112 currentVal = initCurrentVal;
113 highWaterMark = initHighWaterMark;
114 lowWaterMark = initLowWaterMark;
115 sampleTime = -1L;
116 }
117
118 public synchronized String toString() {
119 return super.toString() + NEWLINE +
120 "Current: " + getCurrent() + NEWLINE +
121 "LowWaterMark: " + getLowWaterMark() + NEWLINE +
122 "HighWaterMark: " + getHighWaterMark();
123 }
124
125 // todo: equals implementation
126 public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
127 checkMethod(m);
128
129 Object result;
130 try {
131 result = m.invoke(this, args);
132 } catch (InvocationTargetException e) {
133 throw e.getTargetException();
134 } catch (Exception e) {
135 throw new RuntimeException("unexpected invocation exception: " +
136 e.getMessage());
137 }
138 return result;
139 }
140 }
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