01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package org.jboss.monitor.alarm;
23:
24: import javax.management.ObjectName;
25:
26: /**
27: * AlarmKey
28: *
29: * Used to correlate stateful alarms based on mbean+type match.
30: *
31: * @author <a href="mailto:dimitris@jboss.org">Dimitris Andreadis</a>
32: * @version $Revision: 57210 $
33: */
34: class AlarmKey {
35: // Private Data --------------------------------------------------
36:
37: private String alarmId;
38:
39: // Static Helper -------------------------------------------------
40:
41: public static AlarmKey createKey(Object mbean, String type) {
42: if (mbean instanceof ObjectName) {
43: return new AlarmKey(mbean.toString(), type);
44: } else if (mbean instanceof String) {
45: return new AlarmKey((String) mbean, type);
46: } else {
47: throw new IllegalArgumentException(
48: "Bad non-ObjectName 'mbean' parameter: " + mbean);
49: }
50: }
51:
52: // Constructor ---------------------------------------------------
53:
54: public AlarmKey(String mbean, String type) {
55: StringBuffer sbuf = new StringBuffer(256);
56:
57: sbuf.append(mbean).append('+').append(type);
58:
59: alarmId = sbuf.toString();
60: }
61:
62: // Object stuff --------------------------------------------------
63:
64: /**
65: * Bases equality on alarmId equality
66: */
67: public boolean equals(Object obj) {
68: if (obj instanceof AlarmKey) {
69: return ((AlarmKey) obj).alarmId.equals(this .alarmId);
70: } else {
71: return false;
72: }
73: }
74:
75: /**
76: * Makes use of alarmId's hashCode
77: */
78: public int hashCode() {
79: return this .alarmId.hashCode();
80: }
81:
82: /**
83: * Pretty prints
84: */
85: public String toString() {
86: StringBuffer sbuf = new StringBuffer(256);
87:
88: sbuf.append("AlarmKey[").append(this .alarmId).append("]");
89:
90: return sbuf.toString();
91: }
92: }
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