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org.apache.commons.jelly.tags.jmx.RegisterTag |
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1 | /* |
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2 | * Copyright 2002,2004 The Apache Software Foundation. |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | ||
17 | package org.apache.commons.jelly.tags.jmx; |
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18 | ||
19 | import javax.management.InstanceAlreadyExistsException; |
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20 | import javax.management.MBeanRegistrationException; |
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21 | import javax.management.MBeanServer; |
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22 | import javax.management.NotCompliantMBeanException; |
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23 | import javax.management.ObjectName; |
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24 | ||
25 | import org.apache.commons.jelly.JellyTagException; |
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26 | import org.apache.commons.jelly.MissingAttributeException; |
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27 | import org.apache.commons.jelly.TagSupport; |
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28 | import org.apache.commons.jelly.XMLOutput; |
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29 | import org.apache.commons.jelly.impl.CollectionTag; |
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30 | import org.apache.commons.logging.Log; |
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31 | import org.apache.commons.logging.LogFactory; |
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32 | ||
33 | /** |
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34 | * Registers a JavaBean or JMX MBean with a server.. |
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35 | * |
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36 | * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
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37 | * @version $Revision: 1.4 $ |
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38 | */ |
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39 | 0 | public class RegisterTag extends TagSupport implements CollectionTag { |
40 | ||
41 | /** The Log to which logging calls will be made. */ |
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42 | 0 | private static final Log log = LogFactory.getLog(RegisterTag.class); |
43 | ||
44 | private ObjectName name; |
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45 | private MBeanServer server; |
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46 | ||
47 | 0 | public RegisterTag() { |
48 | 0 | } |
49 | ||
50 | ||
51 | // CollectionTag interface |
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52 | //------------------------------------------------------------------------- |
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53 | public void addItem(Object bean) throws JellyTagException { |
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54 | try { |
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55 | 0 | register(server, bean); |
56 | 0 | } |
57 | catch (Exception e) { |
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58 | 0 | throw new JellyTagException("Failed to register bean: " + bean, e); |
59 | } |
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60 | 0 | } |
61 | ||
62 | // Tag interface |
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63 | //------------------------------------------------------------------------- |
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64 | public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException { |
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65 | 0 | if (name == null) { |
66 | 0 | throw new MissingAttributeException("name"); |
67 | } |
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68 | 0 | if (server == null) { |
69 | 0 | ServerTag serverTag = (ServerTag) findAncestorWithClass(ServerTag.class); |
70 | 0 | if (serverTag == null) { |
71 | 0 | throw new JellyTagException("This class must be nested inside a <server> tag"); |
72 | } |
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73 | 0 | server = serverTag.getServer(); |
74 | } |
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75 | 0 | invokeBody(output); |
76 | 0 | } |
77 | ||
78 | ||
79 | // Properties |
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80 | //------------------------------------------------------------------------- |
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81 | ||
82 | ||
83 | /** |
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84 | * @return ObjectName |
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85 | */ |
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86 | public ObjectName getName() { |
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87 | 0 | return name; |
88 | } |
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89 | ||
90 | /** |
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91 | * Sets the name. |
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92 | * @param name The name to set |
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93 | */ |
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94 | public void setName(ObjectName name) { |
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95 | 0 | this.name = name; |
96 | 0 | } |
97 | ||
98 | /** |
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99 | * @return MBeanServer |
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100 | */ |
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101 | public MBeanServer getServer() { |
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102 | 0 | return server; |
103 | } |
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104 | ||
105 | /** |
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106 | * Sets the MBeanServer. If this attribute is not supplied then the parent <server> tag |
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107 | * is used to get the MBeanServer instance to use. |
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108 | * |
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109 | * @param server The MBeanServer to register the mbeans with. |
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110 | */ |
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111 | public void setServer(MBeanServer server) { |
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112 | 0 | this.server = server; |
113 | 0 | } |
114 | ||
115 | // Implementation methods |
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116 | //------------------------------------------------------------------------- |
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117 | ||
118 | /** |
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119 | * Registers the given bean with the MBeanServer |
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120 | */ |
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121 | protected void register(MBeanServer server, Object bean) throws InstanceAlreadyExistsException, MBeanRegistrationException, NotCompliantMBeanException { |
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122 | 0 | server.registerMBean(bean, getName()); |
123 | 0 | } |
124 | ||
125 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |