Source Code Cross Referenced for DefaultPortalComponentManager.java in  » Content-Management-System » apache-lenya-2.0 » org » apache » cocoon » portal » impl » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Content Management System » apache lenya 2.0 » org.apache.cocoon.portal.impl 
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:        package org.apache.cocoon.portal.impl;
018:
019:        import java.util.HashMap;
020:        import java.util.Iterator;
021:        import java.util.Map;
022:
023:        import org.apache.avalon.framework.CascadingRuntimeException;
024:        import org.apache.avalon.framework.activity.Disposable;
025:        import org.apache.avalon.framework.configuration.Configurable;
026:        import org.apache.avalon.framework.configuration.Configuration;
027:        import org.apache.avalon.framework.configuration.ConfigurationException;
028:        import org.apache.avalon.framework.context.Context;
029:        import org.apache.avalon.framework.logger.AbstractLogEnabled;
030:        import org.apache.avalon.framework.service.ServiceException;
031:        import org.apache.avalon.framework.service.ServiceManager;
032:        import org.apache.avalon.framework.service.ServiceSelector;
033:        import org.apache.avalon.framework.service.Serviceable;
034:        import org.apache.avalon.framework.thread.ThreadSafe;
035:        import org.apache.cocoon.portal.LinkService;
036:        import org.apache.cocoon.portal.PortalComponentManager;
037:        import org.apache.cocoon.portal.PortalManager;
038:        import org.apache.cocoon.portal.PortalService;
039:        import org.apache.cocoon.portal.coplet.CopletFactory;
040:        import org.apache.cocoon.portal.event.EventManager;
041:        import org.apache.cocoon.portal.layout.LayoutFactory;
042:        import org.apache.cocoon.portal.layout.renderer.Renderer;
043:        import org.apache.cocoon.portal.profile.ProfileManager;
044:
045:        /**
046:         * Default {@link PortalComponentManager} implementation
047:         *
048:         * @see org.apache.cocoon.portal.PortalComponentManager
049:         *
050:         * TODO Handle non ThreadSafe components
051:         *
052:         * @author <a href="mailto:cziegeler@s-und-n.de">Carsten Ziegeler</a>
053:         *
054:         * @version CVS $Id: DefaultPortalComponentManager.java 433543 2006-08-22 06:22:54Z crossley $
055:         */
056:        public class DefaultPortalComponentManager extends AbstractLogEnabled
057:                implements  PortalComponentManager, Serviceable, Disposable,
058:                ThreadSafe, Configurable {
059:
060:            /** The avalon component manager */
061:            protected ServiceManager manager;
062:
063:            /** The portal service */
064:            protected final PortalService portalService;
065:
066:            protected String profileManagerRole;
067:            protected ProfileManager profileManager;
068:
069:            protected String linkServiceRole;
070:            protected LinkService linkService;
071:
072:            protected String rendererSelectorRole;
073:            protected ServiceSelector rendererSelector;
074:
075:            protected Map renderers;
076:
077:            protected String copletFactoryRole;
078:            protected CopletFactory copletFactory;
079:
080:            protected String layoutFactoryRole;
081:            protected LayoutFactory layoutFactory;
082:
083:            protected String eventManagerRole;
084:            protected EventManager eventManager;
085:
086:            protected String portalManagerRole;
087:            protected PortalManager portalManager;
088:
089:            protected final Context context;
090:
091:            /**
092:             * Create a new portal component manager. Each portal has a own
093:             * component manager that manages all central components for this
094:             * portal.
095:             * This implementation stores the portal service (a global singleton)
096:             * to pass it to the other components (TODO).
097:             * @param service The portal service.
098:             */
099:            public DefaultPortalComponentManager(final PortalService service,
100:                    Context context) {
101:                this .portalService = service;
102:                this .context = context;
103:            }
104:
105:            /* (non-Javadoc)
106:             * @see org.apache.avalon.framework.service.Serviceable#service(org.apache.avalon.framework.service.ServiceManager)
107:             */
108:            public void service(ServiceManager manager) throws ServiceException {
109:                this .manager = manager;
110:            }
111:
112:            /* (non-Javadoc)
113:             * @see org.apache.cocoon.portal.PortalComponentManager#getLinkService()
114:             */
115:            public LinkService getLinkService() {
116:                if (null == this .linkService) {
117:                    try {
118:                        this .linkService = (LinkService) this .manager
119:                                .lookup(this .linkServiceRole);
120:                    } catch (ServiceException e) {
121:                        throw new CascadingRuntimeException(
122:                                "Unable to lookup link service with role "
123:                                        + this .linkServiceRole, e);
124:                    }
125:                }
126:                return this .linkService;
127:            }
128:
129:            /* (non-Javadoc)
130:             * @see org.apache.cocoon.portal.PortalComponentManager#getProfileManager()
131:             */
132:            public ProfileManager getProfileManager() {
133:                if (null == this .profileManager) {
134:                    try {
135:                        this .profileManager = (ProfileManager) this .manager
136:                                .lookup(this .profileManagerRole);
137:                    } catch (ServiceException e) {
138:                        throw new CascadingRuntimeException(
139:                                "Unable to lookup profile manager with role "
140:                                        + this .profileManagerRole, e);
141:                    }
142:                }
143:                return this .profileManager;
144:            }
145:
146:            /* (non-Javadoc)
147:             * @see org.apache.cocoon.portal.PortalComponentManager#getEventManager()
148:             */
149:            public EventManager getEventManager() {
150:                if (null == this .eventManager) {
151:                    try {
152:                        this .eventManager = (EventManager) this .manager
153:                                .lookup(this .eventManagerRole);
154:                    } catch (ServiceException e) {
155:                        throw new CascadingRuntimeException(
156:                                "Unable to lookup event manager with role "
157:                                        + this .eventManagerRole, e);
158:                    }
159:                }
160:                return this .eventManager;
161:            }
162:
163:            /* (non-Javadoc)
164:             * @see org.apache.avalon.framework.activity.Disposable#dispose()
165:             */
166:            public void dispose() {
167:                if (this .manager != null) {
168:                    if (this .rendererSelector != null) {
169:                        Iterator i = this .renderers.values().iterator();
170:                        while (i.hasNext()) {
171:                            this .rendererSelector.release(i.next());
172:                        }
173:                        this .manager.release(this .rendererSelector);
174:                        this .rendererSelector = null;
175:                        this .renderers = null;
176:                    }
177:                    this .manager.release(this .profileManager);
178:                    this .profileManager = null;
179:                    this .manager.release(this .linkService);
180:                    this .linkService = null;
181:                    this .manager.release(this .copletFactory);
182:                    this .copletFactory = null;
183:                    this .manager.release(this .layoutFactory);
184:                    this .layoutFactory = null;
185:                    this .manager.release(this .eventManager);
186:                    this .eventManager = null;
187:                    this .manager.release(this .portalManager);
188:                    this .portalManager = null;
189:                    this .manager = null;
190:                }
191:            }
192:
193:            /* (non-Javadoc)
194:             * @see org.apache.avalon.framework.configuration.Configurable#configure(org.apache.avalon.framework.configuration.Configuration)
195:             */
196:            public void configure(Configuration config)
197:                    throws ConfigurationException {
198:                this .profileManagerRole = config.getChild("profile-manager")
199:                        .getValue(ProfileManager.ROLE);
200:                this .linkServiceRole = config.getChild("link-service")
201:                        .getValue(LinkService.ROLE);
202:                this .rendererSelectorRole = config
203:                        .getChild("renderer-selector").getValue(
204:                                Renderer.ROLE + "Selector");
205:                this .copletFactoryRole = config.getChild("coplet-factory")
206:                        .getValue(CopletFactory.ROLE);
207:                this .layoutFactoryRole = config.getChild("layout-factory")
208:                        .getValue(LayoutFactory.ROLE);
209:                this .eventManagerRole = config.getChild("event-manager")
210:                        .getValue(EventManager.ROLE);
211:                this .portalManagerRole = config.getChild("portal-manager")
212:                        .getValue(PortalManager.ROLE);
213:            }
214:
215:            /* (non-Javadoc)
216:             * @see org.apache.cocoon.portal.PortalComponentManager#getRenderer(java.lang.String)
217:             */
218:            public Renderer getRenderer(String hint) {
219:                if (rendererSelector == null) {
220:                    try {
221:                        this .rendererSelector = (ServiceSelector) this .manager
222:                                .lookup(this .rendererSelectorRole);
223:                    } catch (ServiceException e) {
224:                        throw new CascadingRuntimeException(
225:                                "Unable to lookup renderer selector with role "
226:                                        + this .rendererSelectorRole, e);
227:                    }
228:                    this .renderers = new HashMap();
229:                }
230:                Renderer o = (Renderer) this .renderers.get(hint);
231:                if (o == null) {
232:                    try {
233:                        o = (Renderer) this .rendererSelector.select(hint);
234:                        this .renderers.put(hint, o);
235:                    } catch (ServiceException e) {
236:                        throw new CascadingRuntimeException(
237:                                "Unable to lookup renderer with hint " + hint,
238:                                e);
239:                    }
240:                }
241:                return o;
242:            }
243:
244:            /* (non-Javadoc)
245:             * @see org.apache.cocoon.portal.PortalComponentManager#getCopletFactory()
246:             */
247:            public CopletFactory getCopletFactory() {
248:                if (null == this .copletFactory) {
249:                    try {
250:                        this .copletFactory = (CopletFactory) this .manager
251:                                .lookup(this .copletFactoryRole);
252:                    } catch (ServiceException e) {
253:                        throw new CascadingRuntimeException(
254:                                "Unable to lookup coplet factory with role "
255:                                        + this .copletFactoryRole, e);
256:                    }
257:                }
258:                return this .copletFactory;
259:            }
260:
261:            /* (non-Javadoc)
262:             * @see org.apache.cocoon.portal.PortalComponentManager#getLayoutFactory()
263:             */
264:            public LayoutFactory getLayoutFactory() {
265:                if (null == this .layoutFactory) {
266:                    try {
267:                        this .layoutFactory = (LayoutFactory) this .manager
268:                                .lookup(this .layoutFactoryRole);
269:                    } catch (ServiceException e) {
270:                        throw new CascadingRuntimeException(
271:                                "Unable to lookup layout factory with role "
272:                                        + this .layoutFactoryRole, e);
273:                    }
274:                }
275:                return this .layoutFactory;
276:            }
277:
278:            /**
279:             * @see org.apache.cocoon.portal.PortalComponentManager#getPortalManager()
280:             */
281:            public PortalManager getPortalManager() {
282:                if (null == this .portalManager) {
283:                    try {
284:                        this .portalManager = (PortalManager) this .manager
285:                                .lookup(this .portalManagerRole);
286:                    } catch (ServiceException e) {
287:                        throw new CascadingRuntimeException(
288:                                "Unable to lookup portal manager with role "
289:                                        + this .portalManagerRole, e);
290:                    }
291:                }
292:                return this .portalManager;
293:            }
294:
295:            /**
296:             * @see org.apache.cocoon.portal.PortalComponentManager#getComponentContext()
297:             */
298:            public Context getComponentContext() {
299:                return this.context;
300:            }
301:        }
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