Source Code Cross Referenced for NamingResourcesMBean.java in  » Sevlet-Container » apache-tomcat-6.0.14 » org » apache » catalina » mbeans » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Sevlet Container » apache tomcat 6.0.14 » org.apache.catalina.mbeans 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Licensed to the Apache Software Foundation (ASF) under one or more
003:         * contributor license agreements.  See the NOTICE file distributed with
004:         * this work for additional information regarding copyright ownership.
005:         * The ASF licenses this file to You under the Apache License, Version 2.0
006:         * (the "License"); you may not use this file except in compliance with
007:         * the License.  You may obtain a copy of the License at
008:         * 
009:         *      http://www.apache.org/licenses/LICENSE-2.0
010:         * 
011:         * Unless required by applicable law or agreed to in writing, software
012:         * distributed under the License is distributed on an "AS IS" BASIS,
013:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         * See the License for the specific language governing permissions and
015:         * limitations under the License.
016:         */
017:
018:        package org.apache.catalina.mbeans;
019:
020:        import java.util.ArrayList;
021:
022:        import javax.management.MBeanException;
023:        import javax.management.MalformedObjectNameException;
024:        import javax.management.ObjectName;
025:        import javax.management.RuntimeOperationsException;
026:
027:        import org.apache.catalina.deploy.ContextEnvironment;
028:        import org.apache.catalina.deploy.ContextResource;
029:        import org.apache.catalina.deploy.ContextResourceLink;
030:        import org.apache.catalina.deploy.NamingResources;
031:        import org.apache.tomcat.util.modeler.BaseModelMBean;
032:        import org.apache.tomcat.util.modeler.ManagedBean;
033:        import org.apache.tomcat.util.modeler.Registry;
034:
035:        /**
036:         * <p>A <strong>ModelMBean</strong> implementation for the
037:         * <code>org.apache.catalina.deploy.NamingResources</code> component.</p>
038:         *
039:         * @author Amy Roh
040:         * @version $Revision: 467222 $ $Date: 2006-10-24 05:17:11 +0200 (mar., 24 oct. 2006) $
041:         */
042:
043:        public class NamingResourcesMBean extends BaseModelMBean {
044:
045:            // ----------------------------------------------------------- Constructors
046:
047:            /**
048:             * Construct a <code>ModelMBean</code> with default
049:             * <code>ModelMBeanInfo</code> information.
050:             *
051:             * @exception MBeanException if the initializer of an object
052:             *  throws an exception
053:             * @exception RuntimeOperationsException if an IllegalArgumentException
054:             *  occurs
055:             */
056:            public NamingResourcesMBean() throws MBeanException,
057:                    RuntimeOperationsException {
058:
059:                super ();
060:
061:            }
062:
063:            // ----------------------------------------------------- Instance Variables
064:
065:            /**
066:             * The configuration information registry for our managed beans.
067:             */
068:            protected Registry registry = MBeanUtils.createRegistry();
069:
070:            /**
071:             * The <code>ManagedBean</code> information describing this MBean.
072:             */
073:            protected ManagedBean managed = registry
074:                    .findManagedBean("NamingResources");
075:
076:            // ------------------------------------------------------------- Attributes
077:
078:            /**
079:             * Return the MBean Names of the set of defined environment entries for  
080:             * this web application
081:             */
082:            public String[] getEnvironments() {
083:                ContextEnvironment[] envs = ((NamingResources) this .resource)
084:                        .findEnvironments();
085:                ArrayList results = new ArrayList();
086:                for (int i = 0; i < envs.length; i++) {
087:                    try {
088:                        ObjectName oname = MBeanUtils.createObjectName(managed
089:                                .getDomain(), envs[i]);
090:                        results.add(oname.toString());
091:                    } catch (MalformedObjectNameException e) {
092:                        IllegalArgumentException iae = new IllegalArgumentException(
093:                                "Cannot create object name for environment "
094:                                        + envs[i]);
095:                        iae.initCause(e);
096:                        throw iae;
097:                    }
098:                }
099:                return ((String[]) results.toArray(new String[results.size()]));
100:
101:            }
102:
103:            /**
104:             * Return the MBean Names of all the defined resource references for this
105:             * application.
106:             */
107:            public String[] getResources() {
108:
109:                ContextResource[] resources = ((NamingResources) this .resource)
110:                        .findResources();
111:                ArrayList results = new ArrayList();
112:                for (int i = 0; i < resources.length; i++) {
113:                    try {
114:                        ObjectName oname = MBeanUtils.createObjectName(managed
115:                                .getDomain(), resources[i]);
116:                        results.add(oname.toString());
117:                    } catch (MalformedObjectNameException e) {
118:                        IllegalArgumentException iae = new IllegalArgumentException(
119:                                "Cannot create object name for resource "
120:                                        + resources[i]);
121:                        iae.initCause(e);
122:                        throw iae;
123:                    }
124:                }
125:                return ((String[]) results.toArray(new String[results.size()]));
126:
127:            }
128:
129:            /**
130:             * Return the MBean Names of all the defined resource link references for 
131:             * this application.
132:             */
133:            public String[] getResourceLinks() {
134:
135:                ContextResourceLink[] resourceLinks = ((NamingResources) this .resource)
136:                        .findResourceLinks();
137:                ArrayList results = new ArrayList();
138:                for (int i = 0; i < resourceLinks.length; i++) {
139:                    try {
140:                        ObjectName oname = MBeanUtils.createObjectName(managed
141:                                .getDomain(), resourceLinks[i]);
142:                        results.add(oname.toString());
143:                    } catch (MalformedObjectNameException e) {
144:                        IllegalArgumentException iae = new IllegalArgumentException(
145:                                "Cannot create object name for resource "
146:                                        + resourceLinks[i]);
147:                        iae.initCause(e);
148:                        throw iae;
149:                    }
150:                }
151:                return ((String[]) results.toArray(new String[results.size()]));
152:
153:            }
154:
155:            // ------------------------------------------------------------- Operations
156:
157:            /**
158:             * Add an environment entry for this web application.
159:             *
160:             * @param envName New environment entry name
161:             * @param type The type of the new environment entry
162:             * @param value The value of the new environment entry 
163:             */
164:            public String addEnvironment(String envName, String type,
165:                    String value) throws MalformedObjectNameException {
166:
167:                NamingResources nresources = (NamingResources) this .resource;
168:                if (nresources == null) {
169:                    return null;
170:                }
171:                ContextEnvironment env = nresources.findEnvironment(envName);
172:                if (env != null) {
173:                    throw new IllegalArgumentException(
174:                            "Invalid environment name - already exists '"
175:                                    + envName + "'");
176:                }
177:                env = new ContextEnvironment();
178:                env.setName(envName);
179:                env.setType(type);
180:                env.setValue(value);
181:                nresources.addEnvironment(env);
182:
183:                // Return the corresponding MBean name
184:                ManagedBean managed = registry
185:                        .findManagedBean("ContextEnvironment");
186:                ObjectName oname = MBeanUtils.createObjectName(managed
187:                        .getDomain(), env);
188:                return (oname.toString());
189:
190:            }
191:
192:            /**
193:             * Add a resource reference for this web application.
194:             *
195:             * @param resourceName New resource reference name
196:             * @param type New resource reference type
197:             */
198:            public String addResource(String resourceName, String type)
199:                    throws MalformedObjectNameException {
200:
201:                NamingResources nresources = (NamingResources) this .resource;
202:                if (nresources == null) {
203:                    return null;
204:                }
205:                ContextResource resource = nresources
206:                        .findResource(resourceName);
207:                if (resource != null) {
208:                    throw new IllegalArgumentException(
209:                            "Invalid resource name - already exists'"
210:                                    + resourceName + "'");
211:                }
212:                resource = new ContextResource();
213:                resource.setName(resourceName);
214:                resource.setType(type);
215:                nresources.addResource(resource);
216:
217:                // Return the corresponding MBean name
218:                ManagedBean managed = registry
219:                        .findManagedBean("ContextResource");
220:                ObjectName oname = MBeanUtils.createObjectName(managed
221:                        .getDomain(), resource);
222:                return (oname.toString());
223:            }
224:
225:            /**
226:             * Add a resource link reference for this web application.
227:             *
228:             * @param resourceLinkName New resource link reference name
229:             * @param type New resource link reference type
230:             */
231:            public String addResourceLink(String resourceLinkName, String type)
232:                    throws MalformedObjectNameException {
233:
234:                NamingResources nresources = (NamingResources) this .resource;
235:                if (nresources == null) {
236:                    return null;
237:                }
238:                ContextResourceLink resourceLink = nresources
239:                        .findResourceLink(resourceLinkName);
240:                if (resourceLink != null) {
241:                    throw new IllegalArgumentException(
242:                            "Invalid resource link name - already exists'"
243:                                    + resourceLinkName + "'");
244:                }
245:                resourceLink = new ContextResourceLink();
246:                resourceLink.setName(resourceLinkName);
247:                resourceLink.setType(type);
248:                nresources.addResourceLink(resourceLink);
249:
250:                // Return the corresponding MBean name
251:                ManagedBean managed = registry
252:                        .findManagedBean("ContextResourceLink");
253:                ObjectName oname = MBeanUtils.createObjectName(managed
254:                        .getDomain(), resourceLink);
255:                return (oname.toString());
256:            }
257:
258:            /**
259:             * Remove any environment entry with the specified name.
260:             *
261:             * @param envName Name of the environment entry to remove
262:             */
263:            public void removeEnvironment(String envName) {
264:
265:                NamingResources nresources = (NamingResources) this .resource;
266:                if (nresources == null) {
267:                    return;
268:                }
269:                ContextEnvironment env = nresources.findEnvironment(envName);
270:                if (env == null) {
271:                    throw new IllegalArgumentException(
272:                            "Invalid environment name '" + envName + "'");
273:                }
274:                nresources.removeEnvironment(envName);
275:
276:            }
277:
278:            /**
279:             * Remove any resource reference with the specified name.
280:             *
281:             * @param resourceName Name of the resource reference to remove
282:             */
283:            public void removeResource(String resourceName) {
284:
285:                resourceName = ObjectName.unquote(resourceName);
286:                NamingResources nresources = (NamingResources) this .resource;
287:                if (nresources == null) {
288:                    return;
289:                }
290:                ContextResource resource = nresources
291:                        .findResource(resourceName);
292:                if (resource == null) {
293:                    throw new IllegalArgumentException(
294:                            "Invalid resource name '" + resourceName + "'");
295:                }
296:                nresources.removeResource(resourceName);
297:
298:            }
299:
300:            /**
301:             * Remove any resource link reference with the specified name.
302:             *
303:             * @param resourceLinkName Name of the resource link reference to remove
304:             */
305:            public void removeResourceLink(String resourceLinkName) {
306:
307:                resourceLinkName = ObjectName.unquote(resourceLinkName);
308:                NamingResources nresources = (NamingResources) this .resource;
309:                if (nresources == null) {
310:                    return;
311:                }
312:                ContextResourceLink resourceLink = nresources
313:                        .findResourceLink(resourceLinkName);
314:                if (resourceLink == null) {
315:                    throw new IllegalArgumentException(
316:                            "Invalid resource Link name '" + resourceLinkName
317:                                    + "'");
318:                }
319:                nresources.removeResourceLink(resourceLinkName);
320:            }
321:
322:        }
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