Source Code Cross Referenced for ArchiveParser.java in  » Blogger-System » apache-roller-3.1 » org » apache » roller » ui » core » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Blogger System » apache roller 3.1 » org.apache.roller.ui.core 
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.  The ASF licenses this file to You
004:         * under the Apache License, Version 2.0 (the "License"); you may not
005:         * use this file except in compliance with the License.
006:         * You may obtain a copy of the License at
007:         *
008:         *     http://www.apache.org/licenses/LICENSE-2.0
009:         *
010:         * Unless required by applicable law or agreed to in writing, software
011:         * distributed under the License is distributed on an "AS IS" BASIS,
012:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013:         * See the License for the specific language governing permissions and
014:         * limitations under the License.  For additional information regarding
015:         * copyright in this work, please see the NOTICE file in the top level
016:         * directory of this distribution.
017:         */
018:        /*
019:         * Created on Apr 2, 2004
020:         */
021:        package org.apache.roller.ui.core;
022:
023:        /**
024:         * TODO: revisit this class once Atom 1.0 support comes to Rome
025:         * @author lance.lavandowska
026:         */
027:        public class ArchiveParser {
028:            //    protected static final Log mLogger = 
029:            //        LogFactory.getFactory().getInstance(ArchiveParser.class);
030:            //    
031:            //    private Roller roller;
032:            //    private WebsiteData website;
033:            //    private File archiveFile;
034:            //
035:            //    private Timestamp current;
036:            //
037:            //    private WeblogCategoryData defaultCategory;
038:            //
039:            //    private WeblogCategoryData rootCategory;
040:            //
041:            //    private IndexManager indexMgr;
042:            // 
043:            //
044:            //    /**
045:            //     * @param rreq
046:            //     * @param f
047:            //     */
048:            //    public ArchiveParser(Roller roller, WebsiteData website, File f) throws RollerException
049:            //    {
050:            //        this.roller = roller;
051:            //        this.website = website;
052:            //        archiveFile = f;
053:            //        
054:            //        current = new Timestamp( System.currentTimeMillis());
055:            //        defaultCategory = website.getDefaultCategory();
056:            //        rootCategory = roller.getWeblogManager().getRootWeblogCategory(website);
057:            //        indexMgr = roller.getIndexManager();
058:            //    }
059:            //
060:            //    public String parse() throws RollerException
061:            //    {        
062:            //        StringBuffer buf = new StringBuffer();
063:            //        
064:            //        // parse file and convert to WeblogEntryDatas
065:            //        Feed atomFeed = getAtomFeed();
066:            //        if (atomFeed != null)
067:            //        {    
068:            //            importAtom(buf, atomFeed);
069:            //        }
070:            //        else
071:            //        {    
072:            //            // not an Atom feed, try RSS
073:            //            ChannelIF channel = getInformaChannel();
074:            //            
075:            //            if (channel != null && channel.getItems()!= null)
076:            //            {
077:            //                importRSS(buf, channel);
078:            //            }
079:            //        }
080:            //        
081:            //        return buf.toString();
082:            //    }
083:            //
084:            //    /**
085:            //     * @return
086:            //     * @throws FileNotFoundException
087:            //     * @throws IOException
088:            //     */
089:            //    private Feed getAtomFeed()
090:            //    {
091:            //        Feed feed = null;
092:            //        BufferedInputStream bis = null;
093:            //        try
094:            //        {
095:            //            FileInputStream fis = new FileInputStream(archiveFile);
096:            //            bis = new BufferedInputStream(fis);
097:            //            // we need AtomFeedReader for Roller-specific elements
098:            //            AtomFeedReader reader = new AtomFeedReader(bis);
099:            //            // current 'version' of Atom4J parses on init, next version won't
100:            //            if (reader.getFeed() == null) 
101:            //            {
102:            //                reader.parse(); 
103:            //            }
104:            //            feed = reader.getFeed();
105:            //        }
106:            //        catch (FileNotFoundException e)
107:            //        {
108:            //            mLogger.debug("You told me to read a non-existant file.", e);
109:            //        }
110:            //        catch (IOException e)
111:            //        {
112:            //            mLogger.debug("Digester throws IOException for no reason I can tell.", e);
113:            //        }
114:            //        finally
115:            //        {
116:            //            try
117:            //            {
118:            //                if (bis != null) bis.close();
119:            //            }
120:            //            catch (IOException e1)
121:            //            {
122:            //                mLogger.error("Unable to close stream to " + archiveFile);
123:            //            }
124:            //        }
125:            //        return feed;
126:            //    }
127:            //
128:            //    /**
129:            //     * @param channel
130:            //     * @return
131:            //     */
132:            //    private ChannelIF getInformaChannel()
133:            //    {
134:            //        ChannelIF channel = null;
135:            //        BufferedInputStream bis = null;
136:            //        try
137:            //        {
138:            //            FileInputStream fis = new FileInputStream(archiveFile);
139:            //            bis = new BufferedInputStream(fis);
140:            //            channel = RSSParser.parse(new ChannelBuilder(), bis);
141:            //        }
142:            //        catch (FileNotFoundException e)
143:            //        {
144:            //            e.printStackTrace();
145:            //        }
146:            //        catch (IOException e)
147:            //        {
148:            //            e.printStackTrace();
149:            //        }
150:            //        catch (ParseException e)
151:            //        {
152:            //            e.printStackTrace();
153:            //        }
154:            //        finally
155:            //        {
156:            //            try
157:            //            {
158:            //                if (bis != null) bis.close();
159:            //            }
160:            //            catch (IOException e1)
161:            //            {
162:            //                mLogger.error("Unable to close stream to " + archiveFile);
163:            //            }
164:            //        }
165:            //        return channel;
166:            //    }
167:            //
168:            //    /**
169:            //     * 
170:            //     */
171:            //    private void importAtom(StringBuffer buf, Feed atomFeed) throws RollerException
172:            //    {
173:            //        AtomEntry atomEntry;
174:            //        WeblogEntryData entry = null;
175:            //        HashMap entryMap = new HashMap(); // map of Roller entries
176:            //        WeblogCategoryData category;
177:            //        HashMap categoryMap = new HashMap();
178:            //        categoryMap.put("defaultCategory", defaultCategory);
179:            //        Collection entries = atomFeed.getEntries();
180:            //        if (entries != null)
181:            //        {
182:            //            Iterator it = entries.iterator();
183:            //            while (it.hasNext())
184:            //            {
185:            //                entry = null; //reset
186:            //
187:            //                // create new Entry from AtomEntry
188:            //                atomEntry = (AtomEntry)it.next();
189:            //
190:            //                // test to see if this Entry is a Comment (it's
191:            //                // parent should already exist).
192:            //                /* Added by Roller's AtomEntry */
193:            //                if (atomEntry.getAnnotation() != null)
194:            //                {
195:            //                    createComment(atomEntry, entryMap);
196:            //                    continue;
197:            //                }
198:            //
199:            //                if (atomEntry.getId() != null)
200:            //                {
201:            //                    entry = roller.getWeblogManager().retrieveWeblogEntry(atomEntry.getId());
202:            //                }
203:            //                if (entry == null)
204:            //                {
205:            //                    category = null;
206:            //                    /* Atom doesn't currently have a Category definition.
207:            //                     Added by Roller's AtomEntry */
208:            //                    // return WeblogCategoryData for getCategories
209:            //                    if (atomEntry.getCategories() != null)
210:            //                    {
211:            //                        Iterator cIt = atomEntry.getCategories().iterator();
212:            //                        if (cIt.hasNext())
213:            //                        {
214:            //                            String catPath = (String)cIt.next();
215:            //                            category = locateCategory(catPath, categoryMap);
216:            //                        }
217:            //                    }
218:            //                    if (category == null) category = defaultCategory;
219:            //
220:            //                    entry = entryFromAtom(buf, atomEntry, entryMap, category);
221:            //
222:            //                    indexEntry(entry);
223:            //                }
224:            //                else
225:            //                {
226:            //                    entryMap.put(entry.getId(), entry);
227:            //                    buf.append("An Entry already exists for id: " + atomEntry.getId() + ".<br />");
228:            //                }
229:            //            }
230:            //        }
231:            //    }
232:            //
233:            //    /**
234:            //     * Convert an AtomEntry to a WeblogEntryData.
235:            //     * @param buf
236:            //     * @param atomEntry
237:            //     * @param entryMap
238:            //     * @param category
239:            //     * @return
240:            //     * @throws RollerException
241:            //     */
242:            //    private WeblogEntryData entryFromAtom(StringBuffer buf, AtomEntry atomEntry, HashMap entryMap, WeblogCategoryData category) throws RollerException
243:            //    {        
244:            //        System.out.println(atomEntry);
245:            //        String title = atomEntry.getTitle().getText();
246:            //        String content = "";
247:            //        Date issued = new Date(current.getTime());
248:            //        Date modified = new Date(current.getTime());     
249:            //        String id = atomEntry.getId();
250:            //        if (atomEntry.getContent() != null) 
251:            //        {
252:            //            content = atomEntry.getContent().getText();
253:            //        }
254:            //        if (atomEntry.getIssued() != null) issued = atomEntry.getIssued();
255:            //        if (atomEntry.getModified()!= null) modified = atomEntry.getModified();
256:            //        
257:            //        WeblogEntryData entry = new WeblogEntryData(
258:            //            null, category, website, 
259:            //            title, (String)null, 
260:            //            content, (String)null, 
261:            //            new Timestamp(issued.getTime()),
262:            //            new Timestamp(modified.getTime()), 
263:            //            Boolean.TRUE);
264:            //        entry.save();
265:            //        // store entry in local cache for Comments' to lookup
266:            //        if (id == null) id = entry.getId();
267:            //        entryMap.put(id, entry);
268:            //        
269:            //        buf.append("\"").append(title).append("\" imported.<br />\n");
270:            //        return entry;
271:            //    }
272:            //
273:            //    /**
274:            //     * @param atomEntry
275:            //     * @param entryMap
276:            //     */
277:            //    private void createComment(AtomEntry atomEntry, HashMap entryMap) throws RollerException
278:            //    {
279:            //        // first try to get the Entry from local cache
280:            //        CommentData comment = roller.getWeblogManager().retrieveComment(atomEntry.getId());
281:            //        if (comment == null)
282:            //        {    
283:            //            String entryId = atomEntry.getAnnotation();
284:            //            WeblogEntryData entry = (WeblogEntryData) entryMap.get(entryId);
285:            //            if (entry == null)
286:            //            {
287:            //                // now try getting it from database
288:            //                entry = roller.getWeblogManager().retrieveWeblogEntry(entryId);
289:            //            }
290:            //            if (entry != null)
291:            //            {    
292:            //                comment = new CommentData(
293:            //                    null, 
294:            //                    entry, 
295:            //                    atomEntry.getAuthor().getName(), 
296:            //                    atomEntry.getAuthor().getEmail(), 
297:            //                    atomEntry.getAuthor().getUrl(), 
298:            //                    atomEntry.getContent().getText(), 
299:            //                    new Timestamp(atomEntry.getIssued().getTime()), 
300:            //                    Boolean.FALSE, Boolean.FALSE);
301:            //                comment.save();
302:            //            }
303:            //            else
304:            //            {
305:            //                mLogger.warn("Unable to find parent WeblogEntry for id: " + entryId +
306:            //                             ".\n\tComment not created: " + atomEntry.getTitle().getText());
307:            //            }
308:            //        }
309:            //        else
310:            //        {
311:            //            mLogger.info("A Comment already exists for id: " + atomEntry.getId());
312:            //        }
313:            //    }
314:            //
315:            //    /**
316:            //     * @param rreq
317:            //     * @param buf
318:            //     * @param channel
319:            //     * @throws RollerException
320:            //     */
321:            //    private void importRSS(StringBuffer buf, ChannelIF channel) throws RollerException
322:            //    {       
323:            //        ItemIF item;
324:            //        WeblogEntryData entry = null;
325:            //        WeblogCategoryData category;
326:            //        HashMap categoryMap = new HashMap();
327:            //        categoryMap.put("defaultCategory", defaultCategory);
328:            //        Iterator it = channel.getItems().iterator();
329:            //        while (it.hasNext())
330:            //        {
331:            //            entry = null; //reset
332:            //            item = (ItemIF)it.next();
333:            //            
334:            //            if (item.getGuid() != null && !item.getGuid().isPermaLink())
335:            //            {
336:            //                entry = roller.getWeblogManager().retrieveWeblogEntry(item.getGuid().getLocation());
337:            //            }
338:            //            
339:            //            if (entry == null)
340:            //            {    
341:            //                category = null;
342:            //                // return WeblogCategoryData for getCategories
343:            //                if (item.getCategories() != null)
344:            //                {
345:            //                    Iterator cIt = item.getCategories().iterator();
346:            //                    if (cIt.hasNext()) 
347:            //                    {
348:            //                        // see if we've already created a category for this String
349:            //                        CategoryIF catIF = (CategoryIF)cIt.next();
350:            //                        category = locateCategory(catIF.getTitle(), categoryMap);
351:            //                    }
352:            //                }
353:            //                if (category == null) category = defaultCategory;
354:            //                
355:            //                entry = entryFromRSS(buf, item, category);
356:            //                
357:            //                indexEntry(entry);
358:            //            }
359:            //            else
360:            //            {
361:            //                buf.append("An Entry already exists for id: " + entry.getId() + ".<br />");
362:            //            }
363:            //        }
364:            //    }
365:            //
366:            //    /**
367:            //     * @param entry
368:            //     */
369:            //    private void indexEntry(WeblogEntryData entry) throws RollerException
370:            //    {
371:            //        // index the new Entry
372:            //        indexMgr.addEntryIndexOperation(entry);
373:            //    }
374:            //
375:            //    /**
376:            //     * Convert an RSS Item to a WeblogEntryData.
377:            //     * @param buf
378:            //     * @param item
379:            //     * @param category
380:            //     * @return
381:            //     * @throws RollerException
382:            //     */
383:            //    private WeblogEntryData entryFromRSS(StringBuffer buf, ItemIF item, WeblogCategoryData category) throws RollerException
384:            //    {
385:            //        WeblogEntryData entry;
386:            //        // make sure there is an item date
387:            //        if (item.getDate() == null)
388:            //        {
389:            //            item.setDate(new Date(current.getTime()));
390:            //        }
391:            //        
392:            //        entry = new WeblogEntryData(
393:            //            (String)null, category, website, 
394:            //            item.getTitle(), (String)null, 
395:            //            item.getDescription(), (String)null, 
396:            //            new Timestamp(item.getDate().getTime()),
397:            //            new Timestamp(item.getDate().getTime()), 
398:            //            Boolean.TRUE);
399:            //        entry.save();
400:            //        buf.append("\"").append(item.getTitle()).append("\" imported.<br />\n");
401:            //        return entry;
402:            //    }
403:            //
404:            //    /**
405:            //     * Iterate over Item's Categories, if any, using the first one.  
406:            //     * Try to match against any we've already pulled.  
407:            //     * If none found locally, check against the database.  
408:            //     * If we still don't find a match, create one and store it locally.
409:            //     * If there are no Item Categories, use defaultCategory
410:            //     * 
411:            //     * @param mapping
412:            //     * @param actionForm
413:            //     * @param request
414:            //     * @param response
415:            //     * @return
416:            //     * @throws IOException
417:            //     * @throws ServletException
418:            //     */
419:            //    private WeblogCategoryData locateCategory(
420:            //                                  String catName, HashMap categoryMap) 
421:            //    throws RollerException
422:            //    {
423:            //        WeblogCategoryData category = (WeblogCategoryData)categoryMap.get(catName);
424:            //        if (category == null) // not in local map
425:            //        {
426:            //            // look for it in database, by path
427:            //            category = roller.getWeblogManager()
428:            //                .getWeblogCategoryByPath(website, category, catName);
429:            //                        
430:            //            if (category == null) // not in database
431:            //            {    
432:            //                // create a new one
433:            //                category = new WeblogCategoryData(null, 
434:            //                    website, rootCategory, 
435:            //                    catName, catName, null);
436:            //                category.save();
437:            //            }
438:            //            categoryMap.put(catName, category);
439:            //        }
440:            //        
441:            //        return category;
442:            //    }
443:        }
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