1 | /* |
2 | * Copyright (c) 2001-2009, Jean Tessier |
3 | * All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * |
9 | * * 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 AccumulatorMeasurement { |
56 | public ContextAccumulatorMeasurement(MeasurementDescriptor descriptor, Metrics context, String initText) { |
57 | super(descriptor, context, initText); |
58 | } |
59 | |
60 | public void accept(MeasurementVisitor visitor) { |
61 | visitor.visitContextAccumulatorMeasurement(this); |
62 | } |
63 | |
64 | protected void populateValues() { |
65 | filterMetrics(getContext()); |
66 | } |
67 | } |