01: /*
02: * hgcommons 7
03: * Hammurapi Group Common Library
04: * Copyright (C) 2003 Hammurapi Group
05: *
06: * This program is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU Lesser General Public
08: * License as published by the Free Software Foundation; either
09: * version 2 of the License, or (at your option) any later version.
10: *
11: * This program is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * Lesser General Public License for more details.
15: *
16: * You should have received a copy of the GNU Lesser General Public
17: * License along with this library; if not, write to the Free Software
18: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19: *
20: * URL: http://www.hammurapi.biz/hammurapi-biz/ef/xmenu/hammurapi-group/products/products/hgcommons/index.html
21: * e-Mail: support@hammurapi.biz
22: */
23: package biz.hammurapi.metrics;
24:
25: import java.util.Collections;
26: import java.util.HashMap;
27: import java.util.Iterator;
28: import java.util.LinkedList;
29: import java.util.Map;
30:
31: /**
32: * Collects metrics in in-memory collection
33: * @author Pavel Vlasov
34: * @version $Revision: 1.2 $
35: */
36: public class SimpleMeasurementConsumer implements MeasurementConsumer,
37: MetricSource {
38: private Map metrics = new HashMap();
39: private boolean keepMeasurements;
40:
41: /**
42: * @param keepMeasurements
43: */
44: public SimpleMeasurementConsumer(boolean keepMeasurements) {
45: super ();
46: this .keepMeasurements = keepMeasurements;
47: }
48:
49: /**
50: *
51: */
52: public SimpleMeasurementConsumer() {
53: super ();
54: }
55:
56: public synchronized void addMeasurement(String name, double value,
57: long time) {
58: Metric metric = (Metric) metrics.get(name);
59: if (metric == null) {
60: metric = new SimpleMetric(name, keepMeasurements);
61: metrics.put(name, metric);
62: }
63: metric.add(value, time);
64: }
65:
66: public Map getMetrics() {
67: return metrics;
68: }
69:
70: public String toString() {
71: StringBuffer ret = new StringBuffer();
72: LinkedList list = new LinkedList(metrics.values());
73: Collections.sort(list);
74: Iterator it = list.iterator();
75: while (it.hasNext()) {
76: ret.append(it.next());
77: ret.append("\n");
78: }
79: return ret.toString();
80: }
81: }
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