01: /*
02: * Copyright (c) 2001-2007, Jean Tessier
03: * All rights reserved.
04: *
05: * Redistribution and use in source and binary forms, with or without
06: * modification, are permitted provided that the following conditions
07: * are met:
08: *
09: * * Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: *
12: * * Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * * Neither the name of Jean Tessier nor the names of his contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
24: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27: * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28: * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31: */
32:
33: package com.jeantessier.metrics;
34:
35: /**
36: * <p>Accumulates entries in context, filtering with regular
37: * expressions. If no regular expressions are given, matches
38: * everything for the given measurement, which must implement
39: * the <code>CollectionMeasurement</code> interface. Regular
40: * expressions matching using <code>Perl5Util</code> from
41: * Jakarta-ORO. This measurement will use
42: * <code>Perl5Util.group(1)</code> if not null, otherwise the
43: * full string.</p>
44: *
45: * <p>This is the syntax for initializing this type of
46: * measurement:</p>
47: *
48: * <pre>
49: * <init>
50: * measurement name [perl regular expression]
51: * ...
52: * </init>
53: * </pre>
54: */
55: public class ContextAccumulatorMeasurement extends
56: AccumulatorMeasurement {
57: public ContextAccumulatorMeasurement(
58: MeasurementDescriptor descriptor, Metrics context,
59: String initText) {
60: super (descriptor, context, initText);
61: }
62:
63: public void accept(MeasurementVisitor visitor) {
64: visitor.visitContextAccumulatorMeasurement(this );
65: }
66:
67: protected void populateValues() {
68: filterMetrics(getContext());
69: }
70: }
|