Source Code Cross Referenced for DefaultCopletFactory.java in  » Content-Management-System » apache-lenya-2.0 » org » apache » cocoon » portal » coplet » 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.coplet.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.coplet.impl;
018:
019:        import java.util.ArrayList;
020:        import java.util.HashMap;
021:        import java.util.List;
022:        import java.util.Map;
023:
024:        import org.apache.avalon.framework.activity.Disposable;
025:        import org.apache.avalon.framework.component.Component;
026:        import org.apache.avalon.framework.configuration.Configurable;
027:        import org.apache.avalon.framework.configuration.Configuration;
028:        import org.apache.avalon.framework.configuration.ConfigurationException;
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.ProcessingException;
036:        import org.apache.cocoon.portal.PortalService;
037:        import org.apache.cocoon.portal.aspect.AspectDataHandler;
038:        import org.apache.cocoon.portal.aspect.AspectDataStore;
039:        import org.apache.cocoon.portal.aspect.AspectDescription;
040:        import org.apache.cocoon.portal.aspect.impl.DefaultAspectDataHandler;
041:        import org.apache.cocoon.portal.aspect.impl.DefaultAspectDescription;
042:        import org.apache.cocoon.portal.coplet.CopletData;
043:        import org.apache.cocoon.portal.coplet.CopletFactory;
044:        import org.apache.cocoon.portal.coplet.CopletInstanceData;
045:        import org.apache.cocoon.portal.coplet.adapter.CopletAdapter;
046:
047:        /**
048:         * This factory is for creating and managing coplet objects
049:         * 
050:         * @author <a href="mailto:cziegeler@s-und-n.de">Carsten Ziegeler</a>
051:         * 
052:         * @version CVS $Id: DefaultCopletFactory.java 433543 2006-08-22 06:22:54Z crossley $
053:         */
054:        public class DefaultCopletFactory extends AbstractLogEnabled implements 
055:                Component, ThreadSafe, CopletFactory, Serviceable, Disposable,
056:                Configurable {
057:
058:            protected ServiceManager manager;
059:
060:            protected Map coplets = new HashMap();
061:
062:            protected List descriptions = new ArrayList();
063:
064:            protected ServiceSelector storeSelector;
065:
066:            protected static long idCounter = System.currentTimeMillis();
067:
068:            /* (non-Javadoc)
069:             * @see org.apache.cocoon.portal.coplet.CopletFactory#prepare(org.apache.cocoon.portal.coplet.CopletData)
070:             */
071:            public void prepare(CopletData copletData)
072:                    throws ProcessingException {
073:                if (copletData != null) {
074:
075:                    final String copletName = copletData.getName();
076:                    if (copletName == null) {
077:                        throw new ProcessingException("CopletData "
078:                                + copletData.getId()
079:                                + " has no associated name.");
080:                    }
081:                    Object[] o = (Object[]) this .coplets.get(copletName);
082:
083:                    if (o == null) {
084:                        throw new ProcessingException(
085:                                "CopletDescription with name " + copletName
086:                                        + " not found.");
087:                    }
088:                    DefaultCopletDescription copletDescription = (DefaultCopletDescription) o[0];
089:
090:                    copletData.setDescription(copletDescription);
091:                    copletData.setAspectDataHandler((AspectDataHandler) o[1]);
092:
093:                }
094:            }
095:
096:            /* (non-Javadoc)
097:             * @see org.apache.cocoon.portal.coplet.CopletFactory#prepare(org.apache.cocoon.portal.coplet.CopletInstanceData)
098:             */
099:            public void prepare(CopletInstanceData copletInstanceData)
100:                    throws ProcessingException {
101:                if (copletInstanceData != null) {
102:
103:                    final String copletName = copletInstanceData.getName();
104:                    if (copletName == null) {
105:                        throw new ProcessingException("CopletInstanceData "
106:                                + copletInstanceData.getId()
107:                                + " has no associated name.");
108:                    }
109:                    Object[] o = (Object[]) this .coplets.get(copletName);
110:
111:                    if (o == null) {
112:                        throw new ProcessingException(
113:                                "CopletDescription with name " + copletName
114:                                        + " not found.");
115:                    }
116:                    DefaultCopletDescription copletDescription = (DefaultCopletDescription) o[0];
117:
118:                    copletInstanceData.setDescription(copletDescription);
119:                    copletInstanceData
120:                            .setAspectDataHandler((AspectDataHandler) o[2]);
121:
122:                }
123:            }
124:
125:            /* (non-Javadoc)
126:             * @see org.apache.cocoon.portal.coplet.CopletFactory#newInstance(org.apache.cocoon.portal.coplet.CopletData)
127:             */
128:            public CopletInstanceData newInstance(CopletData copletData)
129:                    throws ProcessingException {
130:                String name = copletData.getName();
131:                Object[] o = (Object[]) this .coplets.get(name);
132:
133:                if (o == null) {
134:                    throw new ProcessingException(
135:                            "CopletDescription with name " + name
136:                                    + " not found.");
137:                }
138:                DefaultCopletDescription copletDescription = (DefaultCopletDescription) o[0];
139:
140:                CopletInstanceData instance = new CopletInstanceData();
141:
142:                String id = null;
143:                if (copletDescription.createId()) {
144:                    synchronized (this ) {
145:                        id = copletData.getId() + '_' + idCounter;
146:                        idCounter += 1;
147:                    }
148:                }
149:                instance.initialize(name, id);
150:
151:                instance.setDescription(copletDescription);
152:                instance.setAspectDataHandler((AspectDataHandler) o[2]);
153:                instance.setCopletData(copletData);
154:
155:                // now lookup the adapter
156:                final String adapterName = copletData.getCopletBaseData()
157:                        .getCopletAdapterName();
158:                CopletAdapter adapter = null;
159:                ServiceSelector adapterSelector = null;
160:                try {
161:                    adapterSelector = (ServiceSelector) this .manager
162:                            .lookup(CopletAdapter.ROLE + "Selector");
163:                    adapter = (CopletAdapter) adapterSelector
164:                            .select(adapterName);
165:                    adapter.init(instance);
166:                    adapter.login(instance);
167:                } catch (ServiceException ce) {
168:                    throw new ProcessingException(
169:                            "Unable to lookup coplet adapter selector or adaptor.",
170:                            ce);
171:                } finally {
172:                    if (adapterSelector != null) {
173:                        adapterSelector.release(adapter);
174:                    }
175:                    this .manager.release(adapterSelector);
176:                }
177:
178:                PortalService service = null;
179:                try {
180:                    service = (PortalService) this .manager
181:                            .lookup(PortalService.ROLE);
182:                    service.getComponentManager().getProfileManager().register(
183:                            instance);
184:                } catch (ServiceException ce) {
185:                    throw new ProcessingException(
186:                            "Unable to lookup profile manager.", ce);
187:                } finally {
188:                    this .manager.release(service);
189:                }
190:                return instance;
191:            }
192:
193:            /* (non-Javadoc)
194:             * @see org.apache.avalon.framework.service.Serviceable#service(org.apache.avalon.framework.service.ServiceManager)
195:             */
196:            public void service(ServiceManager manager) throws ServiceException {
197:                this .manager = manager;
198:                this .storeSelector = (ServiceSelector) this .manager
199:                        .lookup(AspectDataStore.ROLE + "Selector");
200:            }
201:
202:            /* (non-Javadoc)
203:             * @see org.apache.avalon.framework.activity.Disposable#dispose()
204:             */
205:            public void dispose() {
206:                if (this .manager != null) {
207:                    this .manager.release(this .storeSelector);
208:                    this .storeSelector = null;
209:                    this .manager = null;
210:                }
211:            }
212:
213:            /* (non-Javadoc)
214:             * @see org.apache.avalon.framework.configuration.Configurable#configure(org.apache.avalon.framework.configuration.Configuration)
215:             */
216:            public void configure(Configuration configuration)
217:                    throws ConfigurationException {
218:                final Configuration[] copletsConf = configuration.getChild(
219:                        "coplets").getChildren("coplet");
220:                if (copletsConf != null) {
221:                    for (int i = 0; i < copletsConf.length; i++) {
222:                        DefaultCopletDescription desc = new DefaultCopletDescription();
223:                        DefaultCopletDescription instanceDesc = new DefaultCopletDescription();
224:                        final String name = copletsConf[i].getAttribute("name");
225:
226:                        // unique test
227:                        if (this .coplets.get(name) != null) {
228:                            throw new ConfigurationException(
229:                                    "Coplet name must be unique. Double definition for "
230:                                            + name);
231:                        }
232:                        desc.setName(copletsConf[i].getAttribute("name"));
233:                        instanceDesc.setName(copletsConf[i]
234:                                .getAttribute("name"));
235:                        instanceDesc.setCreateId(copletsConf[i]
236:                                .getAttributeAsBoolean("create-id", true));
237:
238:                        // and now the aspects
239:                        Configuration[] aspectsConf = copletsConf[i].getChild(
240:                                "coplet-data-aspects").getChildren("aspect");
241:                        if (aspectsConf != null) {
242:                            for (int m = 0; m < aspectsConf.length; m++) {
243:                                AspectDescription adesc = DefaultAspectDescription
244:                                        .newInstance(aspectsConf[m]);
245:                                desc.addAspectDescription(adesc);
246:                            }
247:                        }
248:
249:                        // and now the aspects of the instances
250:                        aspectsConf = copletsConf[i].getChild(
251:                                "coplet-instance-data-aspects").getChildren(
252:                                "aspect");
253:                        if (aspectsConf != null) {
254:                            for (int m = 0; m < aspectsConf.length; m++) {
255:                                AspectDescription adesc = DefaultAspectDescription
256:                                        .newInstance(aspectsConf[m]);
257:                                instanceDesc.addAspectDescription(adesc);
258:                            }
259:                        }
260:
261:                        DefaultAspectDataHandler handler = new DefaultAspectDataHandler(
262:                                desc, this .storeSelector);
263:                        DefaultAspectDataHandler instanceHandler = new DefaultAspectDataHandler(
264:                                instanceDesc, this .storeSelector);
265:                        this .coplets.put(desc.getName(), new Object[] { desc,
266:                                handler, instanceHandler });
267:                        this .descriptions.add(desc);
268:                    }
269:                }
270:            }
271:
272:            /* (non-Javadoc)
273:             * @see org.apache.cocoon.portal.coplet.CopletFactory#remove(org.apache.cocoon.portal.coplet.CopletInstanceData)
274:             */
275:            public void remove(CopletInstanceData copletInstanceData)
276:                    throws ProcessingException {
277:                if (copletInstanceData != null) {
278:                    // now lookup the adapter
279:                    final String adapterName = copletInstanceData
280:                            .getCopletData().getCopletBaseData()
281:                            .getCopletAdapterName();
282:                    CopletAdapter adapter = null;
283:                    ServiceSelector adapterSelector = null;
284:                    try {
285:                        adapterSelector = (ServiceSelector) this .manager
286:                                .lookup(CopletAdapter.ROLE + "Selector");
287:                        adapter = (CopletAdapter) adapterSelector
288:                                .select(adapterName);
289:                        adapter.logout(copletInstanceData);
290:                        adapter.destroy(copletInstanceData);
291:                    } catch (ServiceException ce) {
292:                        throw new ProcessingException(
293:                                "Unable to lookup coplet adapter selector or adaptor.",
294:                                ce);
295:                    } finally {
296:                        if (adapterSelector != null) {
297:                            adapterSelector.release(adapter);
298:                        }
299:                        this .manager.release(adapterSelector);
300:                    }
301:
302:                    PortalService service = null;
303:                    try {
304:                        service = (PortalService) this .manager
305:                                .lookup(PortalService.ROLE);
306:                        service.getComponentManager().getProfileManager()
307:                                .unregister(copletInstanceData);
308:                    } catch (ServiceException ce) {
309:                        throw new ProcessingException(
310:                                "Unable to lookup portal service.", ce);
311:                    } finally {
312:                        this.manager.release(service);
313:                    }
314:                }
315:            }
316:
317:        }
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