Source Code Cross Referenced for DocumentWorkflowable.java in  » Content-Management-System » apache-lenya-2.0 » org » apache » lenya » cms » workflow » 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.lenya.cms.workflow 
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.lenya.cms.workflow;
019:
020:        import java.text.ParsePosition;
021:        import java.text.SimpleDateFormat;
022:        import java.util.Date;
023:        import java.util.HashMap;
024:        import java.util.Iterator;
025:        import java.util.Locale;
026:        import java.util.Map;
027:        import java.util.SortedMap;
028:        import java.util.TreeMap;
029:
030:        import org.apache.avalon.framework.container.ContainerUtil;
031:        import org.apache.avalon.framework.logger.AbstractLogEnabled;
032:        import org.apache.avalon.framework.logger.Logger;
033:        import org.apache.avalon.framework.service.ServiceManager;
034:        import org.apache.lenya.ac.Identity;
035:        import org.apache.lenya.ac.User;
036:        import org.apache.lenya.cms.metadata.MetaData;
037:        import org.apache.lenya.cms.observation.RepositoryEvent;
038:        import org.apache.lenya.cms.observation.RepositoryEventFactory;
039:        import org.apache.lenya.cms.publication.Document;
040:        import org.apache.lenya.cms.publication.ResourceType;
041:        import org.apache.lenya.cms.repository.Session;
042:        import org.apache.lenya.workflow.Version;
043:        import org.apache.lenya.workflow.Workflow;
044:        import org.apache.lenya.workflow.Workflowable;
045:
046:        /**
047:         * Workflowable around a CMS document.
048:         * 
049:         * @version $Id: DocumentWorkflowable.java 416648 2006-06-23 09:15:28Z andreas $
050:         */
051:        class DocumentWorkflowable extends AbstractLogEnabled implements 
052:                Workflowable {
053:
054:            /**
055:             * Ctor.
056:             * @param manager The service manager.
057:             * @param session The repository session.
058:             * @param document The document.
059:             * @param logger The logger.
060:             */
061:            public DocumentWorkflowable(ServiceManager manager,
062:                    Session session, Document document, Logger logger) {
063:                this .document = document;
064:                this .session = session;
065:                this .manager = manager;
066:                ContainerUtil.enableLogging(this , logger);
067:            }
068:
069:            private Session session;
070:
071:            private ServiceManager manager;
072:
073:            /**
074:             * @return The service manager.
075:             */
076:            public ServiceManager getServiceManager() {
077:                return this .manager;
078:            }
079:
080:            /**
081:             * @return The repository session.
082:             */
083:            public Session getSession() {
084:                return session;
085:            }
086:
087:            private Document document;
088:
089:            protected Document getDocument() {
090:                return this .document;
091:            }
092:
093:            /**
094:             * @return The name of the workflow schema.
095:             */
096:            protected String getWorkflowSchema() {
097:                String workflowName = null;
098:                try {
099:                    ResourceType doctype = document.getResourceType();
100:                    if (doctype != null) {
101:                        workflowName = document.getPublication()
102:                                .getWorkflowSchema(doctype);
103:                    }
104:                } catch (Exception e) {
105:                    throw new RuntimeException(e);
106:                }
107:                return workflowName;
108:            }
109:
110:            private Version[] versions = null;
111:
112:            private long lastModified = 0;
113:
114:            protected static final String METADATA_NAMESPACE = "http://apache.org/lenya/metadata/workflow/1.0";
115:            protected static final String METADATA_VERSION = "workflowVersion";
116:
117:            /**
118:             * @see org.apache.lenya.workflow.Workflowable#getVersions()
119:             */
120:            public Version[] getVersions() {
121:                try {
122:                    MetaData meta = this .document
123:                            .getMetaData(METADATA_NAMESPACE);
124:                    if (this .versions == null
125:                            || meta.getLastModified() > this .lastModified) {
126:                        String[] versionStrings = meta
127:                                .getValues(METADATA_VERSION);
128:                        this .versions = new Version[versionStrings.length];
129:
130:                        SortedMap number2version = new TreeMap();
131:
132:                        for (int i = 0; i < versionStrings.length; i++) {
133:                            String string = versionStrings[i];
134:                            int spaceIndex = string.indexOf(" ");
135:                            String numberString = string.substring(0,
136:                                    spaceIndex);
137:                            int number = Integer.parseInt(numberString);
138:                            String versionString = string
139:                                    .substring(spaceIndex + 1);
140:                            Version version = decodeVersion(versionString);
141:                            number2version.put(new Integer(number), version);
142:                        }
143:
144:                        int number = 0;
145:                        for (Iterator i = number2version.keySet().iterator(); i
146:                                .hasNext();) {
147:                            Version version = (Version) number2version.get(i
148:                                    .next());
149:                            this .versions[number] = version;
150:                            number++;
151:                        }
152:
153:                        this .lastModified = meta.getLastModified();
154:                    }
155:                } catch (Exception e) {
156:                    throw new RuntimeException(e);
157:                }
158:                return this .versions;
159:            }
160:
161:            /**
162:             * @see org.apache.lenya.workflow.Workflowable#getLatestVersion()
163:             */
164:            public Version getLatestVersion() {
165:                Version version = null;
166:                Version[] versions = getVersions();
167:                if (versions.length > 0) {
168:                    version = versions[versions.length - 1];
169:                }
170:                return version;
171:            }
172:
173:            /**
174:             * @see org.apache.lenya.workflow.Workflowable#newVersion(org.apache.lenya.workflow.Workflow,
175:             *      org.apache.lenya.workflow.Version)
176:             */
177:            public void newVersion(Workflow workflow, Version version) {
178:                Version[] newVersions = new Version[getVersions().length + 1];
179:                for (int i = 0; i < getVersions().length; i++) {
180:                    newVersions[i] = getVersions()[i];
181:                }
182:
183:                int number = newVersions.length - 1;
184:                newVersions[number] = version;
185:
186:                String string = number + " " + encodeVersion(workflow, version);
187:                addToMetaData(string);
188:
189:                WorkflowEventDescriptor descriptor = new WorkflowEventDescriptor(
190:                        version);
191:                RepositoryEvent event = RepositoryEventFactory.createEvent(
192:                        this .manager, getDocument(), getLogger(), descriptor);
193:                getDocument().getRepositoryNode().getSession().enqueueEvent(
194:                        event);
195:            }
196:
197:            protected void addToMetaData(String versionString) {
198:                try {
199:                    String[] areas = getDocument().getPublication()
200:                            .getAreaNames();
201:                    for (int i = 0; i < areas.length; i++) {
202:                        if (getDocument().existsAreaVersion(areas[i])) {
203:                            Document doc = getDocument().getAreaVersion(
204:                                    areas[i]);
205:                            MetaData meta = doc.getMetaData(METADATA_NAMESPACE);
206:                            meta.addValue(METADATA_VERSION, versionString);
207:                        }
208:                    }
209:                } catch (Exception e) {
210:                    throw new RuntimeException(e);
211:                }
212:            }
213:
214:            protected String encodeVersion(Workflow workflow, Version version) {
215:
216:                StringBuffer stringBuf = new StringBuffer("event:")
217:                        .append(version.getEvent());
218:                stringBuf.append(" state:").append(version.getState());
219:
220:                Identity identity = getSession().getIdentity();
221:                User user = identity.getUser();
222:                if (user != null) {
223:                    stringBuf.append(" user:").append(
224:                            identity.getUser().getId());
225:                }
226:                stringBuf.append(" machine:").append(
227:                        identity.getMachine().getIp());
228:
229:                SimpleDateFormat format = new SimpleDateFormat(
230:                        "yyyy-MM-dd_HH:mm:ss");
231:                stringBuf.append(" date:").append(format.format(new Date()));
232:
233:                String names[] = workflow.getVariableNames();
234:                for (int i = 0; i < names.length; i++) {
235:                    String value = Boolean.toString(version.getValue(names[i]));
236:                    stringBuf.append(" var:").append(names[i]);
237:                    stringBuf.append("=").append(value);
238:                }
239:                return stringBuf.toString();
240:            }
241:
242:            protected Version decodeVersion(String string) {
243:
244:                String event = null;
245:                String state = null;
246:                String user = null;
247:                String machine = null;
248:                Date date = null;
249:                Map variables = new HashMap();
250:
251:                String[] parts = string.split(" ");
252:                for (int i = 0; i < parts.length; i++) {
253:                    String[] steps = parts[i].split(":", 2);
254:                    if (steps[0].equals("event")) {
255:                        event = steps[1];
256:                    } else if (steps[0].equals("state")) {
257:                        state = steps[1];
258:                    } else if (steps[0].equals("user")) {
259:                        user = steps[1];
260:                    } else if (steps[0].equals("date")) {
261:                        SimpleDateFormat sdf = new SimpleDateFormat(
262:                                "yyyy-MM-dd_HH:mm:ss", Locale.US);
263:                        date = sdf.parse(steps[1], new ParsePosition(0));
264:                    } else if (steps[0].equals("machine")) {
265:                        machine = steps[1];
266:                    } else if (steps[0].equals("var")) {
267:                        String[] nameValue = steps[1].split("=");
268:                        variables.put(nameValue[0], nameValue[1]);
269:                    }
270:                }
271:
272:                Version version = new LenyaVersion(event, state);
273:                for (Iterator i = variables.keySet().iterator(); i.hasNext();) {
274:                    String name = (String) i.next();
275:                    String value = (String) variables.get(name);
276:                    version.setUserId(user);
277:                    version.setDate(date);
278:                    version.setIPAddress(machine);
279:                    version.setValue(name, Boolean.valueOf(value)
280:                            .booleanValue());
281:                }
282:                return version;
283:            }
284:
285:            /**
286:             * @see org.apache.lenya.workflow.Workflowable#getWorkflowSchemaURI()
287:             */
288:            public String getWorkflowSchemaURI() {
289:                String uri = null;
290:                String schema = getWorkflowSchema();
291:                if (schema != null) {
292:
293:                    if (schema.indexOf("://") != -1) {
294:                        return schema;
295:                    } else {
296:                        uri = this .document.getPublication().getSourceURI()
297:                                + "/config/workflow/" + schema;
298:                        uri = uri.substring("lenya://".length());
299:                        uri = "context://" + uri;
300:                    }
301:                }
302:                return uri;
303:            }
304:
305:            public String toString() {
306:                return this.document.toString();
307:            }
308:
309:        }
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