Source Code Cross Referenced for DummyClient.java in  » Groupware » LibreSource » org » libresource » so6 » core » client » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Groupware » LibreSource » org.libresource.so6.core.client 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * LibreSource
003:         * Copyright (C) 2004-2008 Artenum SARL / INRIA
004:         * http://www.libresource.org - contact@artenum.com
005:         *
006:         * This file is part of the LibreSource software, 
007:         * which can be used and distributed under license conditions.
008:         * The license conditions are provided in the LICENSE.TXT file 
009:         * at the root path of the packaging that enclose this file. 
010:         * More information can be found at 
011:         * - http://dev.libresource.org/home/license
012:         *
013:         * Initial authors :
014:         *
015:         * Guillaume Bort / INRIA
016:         * Francois Charoy / Universite Nancy 2
017:         * Julien Forest / Artenum
018:         * Claude Godart / Universite Henry Poincare
019:         * Florent Jouille / INRIA
020:         * Sebastien Jourdain / INRIA / Artenum
021:         * Yves Lerumeur / Artenum
022:         * Pascal Molli / Universite Henry Poincare
023:         * Gerald Oster / INRIA
024:         * Mariarosa Penzi / Artenum
025:         * Gerard Sookahet / Artenum
026:         * Raphael Tani / INRIA
027:         *
028:         * Contributors :
029:         *
030:         * Stephane Bagnier / Artenum
031:         * Amadou Dia / Artenum-IUP Blois
032:         * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
033:         */package org.libresource.so6.core.client;
034:
035:        import org.libresource.so6.core.compress.CompressUtil;
036:        import org.libresource.so6.core.engine.OpVectorFsImpl;
037:        import org.libresource.so6.core.engine.PatchFile;
038:        import org.libresource.so6.core.engine.util.FileUtils;
039:
040:        import java.io.File;
041:        import java.io.FileInputStream;
042:        import java.io.FileOutputStream;
043:        import java.io.FileWriter;
044:        import java.io.FilenameFilter;
045:        import java.io.OutputStreamWriter;
046:
047:        import java.util.ArrayList;
048:        import java.util.Iterator;
049:        import java.util.Properties;
050:        import java.util.StringTokenizer;
051:        import java.util.Vector;
052:
053:        public class DummyClient implements  ClientI {
054:            private static String DEFAULT_BINEXT = "class pdf ps eps exe zip jar gif jpg png";
055:
056:            /** Name of the queue property file */
057:            public static String PROP_FILE = "so6.properties";
058:
059:            /** Key name for the last ticket information in the property file */
060:            public static String LAST_TICKET = "so6.last.ticket";
061:
062:            /** Key name for the binary extention information in the property file */
063:            public static String BINEXT = "so6.bin.ext";
064:
065:            // liste des extensions binaires...
066:
067:            /** Name of the local directory where the patch will be stored */
068:            public static final String PATCHFILES = "PATCHFILES";
069:
070:            /**
071:             * Name of the local directory where the command during compression will be
072:             * stored
073:             */
074:            public static final String CMDS = "CMDS";
075:
076:            /**
077:             * Name of the local directory where the attachement of the command will be
078:             * stored
079:             */
080:            public static final String ATTACH = "ATTACH";
081:            private String dir;
082:            private Properties prop = new Properties();
083:            private boolean loaded = false;
084:            private Vector exts = new Vector();
085:
086:            /**
087:             * Create a So6 queue in a tmp directory
088:             */
089:            public DummyClient() throws Exception {
090:                this (FileUtils.createTmpDir().getPath());
091:            }
092:
093:            /**
094:             * Default constructor
095:             *
096:             * @param props
097:             */
098:            public DummyClient(Properties props) {
099:                this (props.getProperty(SO6_QUEUE_ID));
100:            }
101:
102:            /**
103:             * Create a So6 queue in the specified directory
104:             *
105:             * @param path
106:             *            the base path for the queue
107:             */
108:            public DummyClient(String path) {
109:                this .dir = path;
110:
111:                File d = new File(path);
112:
113:                if (!d.exists() || (d.list().length == 0)) {
114:                    if (!d.exists() && !d.mkdirs()) {
115:                        throw new RuntimeException("Cannot create "
116:                                + d.getPath());
117:                    }
118:
119:                    prop.setProperty(DummyClient.LAST_TICKET, "0");
120:                    exts = DummyClient.readBinExt(DEFAULT_BINEXT);
121:                    save();
122:                }
123:
124:                d = new File(dir, PATCHFILES);
125:
126:                if (!d.exists()) {
127:                    if (!d.mkdirs()) {
128:                        throw new RuntimeException("Cannot create "
129:                                + d.getPath());
130:                    }
131:                }
132:
133:                d = new File(dir, CMDS);
134:
135:                if (!d.exists()) {
136:                    if (!d.mkdirs()) {
137:                        throw new RuntimeException("Cannot create "
138:                                + d.getPath());
139:                    }
140:                }
141:
142:                d = new File(dir, ATTACH);
143:
144:                if (!d.exists()) {
145:                    if (!d.mkdirs()) {
146:                        throw new RuntimeException("Cannot create "
147:                                + d.getPath());
148:                    }
149:                }
150:
151:                load();
152:            }
153:
154:            /**
155:             * Return the base path of the Dummy queue directory
156:             *
157:             * @return the base path of the queue.
158:             */
159:            public String getDummyPath() {
160:                return dir;
161:            }
162:
163:            /**
164:             * Load meta data from the queue property file
165:             */
166:            public void load() {
167:                File propfile = new File(dir + File.separator
168:                        + DummyClient.PROP_FILE);
169:
170:                if ((propfile.exists()) && (propfile.isFile())) {
171:                    try {
172:                        FileInputStream fis = new FileInputStream(propfile);
173:                        prop.load(fis);
174:                        exts = DummyClient.readBinExt(prop
175:                                .getProperty(DummyClient.BINEXT));
176:                    } catch (Exception e) {
177:                        e.printStackTrace();
178:                        throw new RuntimeException("Cannot read property file:"
179:                                + propfile.getPath());
180:                    }
181:                } else {
182:                    throw new RuntimeException("Cannot find property file:"
183:                            + propfile.getPath());
184:                }
185:
186:                loaded = true;
187:            }
188:
189:            /**
190:             * Save queue meta data
191:             */
192:            public void save() {
193:                if (dir == null) { // true for testing...
194:
195:                    return;
196:                }
197:
198:                try {
199:                    FileOutputStream fos = new FileOutputStream(dir
200:                            + File.separator + DummyClient.PROP_FILE);
201:                    prop.setProperty(DummyClient.BINEXT, getBinExt());
202:                    prop.store(fos, "do not edit");
203:                    fos.close();
204:                } catch (Exception e) {
205:                    throw new RuntimeException("Cannot save property file"
206:                            + dir + File.separator + DummyClient.PROP_FILE);
207:                }
208:            }
209:
210:            public long getLastTicket() {
211:                load();
212:
213:                return Long
214:                        .parseLong(prop.getProperty(DummyClient.LAST_TICKET));
215:            }
216:
217:            private void setLastTicket(long i) {
218:                prop.setProperty(DummyClient.LAST_TICKET, Long.toString(i));
219:                this .save();
220:            }
221:
222:            public void addBinExt(String ext) {
223:                if (!(exts.contains(ext))) {
224:                    exts.add(ext);
225:                }
226:            }
227:
228:            public void removeBinExt(String ext) {
229:                exts.remove(ext);
230:            }
231:
232:            public String getBinExt() {
233:                StringBuffer sb = new StringBuffer();
234:
235:                for (int i = 0; i < exts.size(); i++) {
236:                    sb.append(exts.get(i) + " ");
237:                }
238:
239:                return sb.toString();
240:            }
241:
242:            /**
243:             * Split binary extention into a vector of extention
244:             *
245:             * @param s
246:             * @return
247:             */
248:            public static Vector readBinExt(String s) {
249:                Vector v = new Vector();
250:                StringTokenizer st = new StringTokenizer(s);
251:
252:                while (st.hasMoreTokens()) {
253:                    v.add(st.nextToken());
254:                }
255:
256:                return v;
257:            }
258:
259:            public void sendPatch(long ticket, long lasticket,
260:                    String patchfile, boolean validate) throws LocalException {
261:                File f = new File(patchfile);
262:
263:                if (ticket != (getLastTicket() + 1)) {
264:                    throw new LocalException("bad patch file, waiting for "
265:                            + (getLastTicket() + 1) + " got " + ticket);
266:                }
267:
268:                try {
269:                    FileUtils.copy(patchfile, dir + File.separator + PATCHFILES
270:                            + File.separator + ticket + "." + lasticket);
271:                } catch (Exception e) {
272:                    throw new LocalException(e);
273:                }
274:
275:                setLastTicket(lasticket);
276:            }
277:
278:            public String getPatch(final long fromTicket) throws LocalException {
279:                File d = new File(dir + File.separator + PATCHFILES);
280:                String[] entries = d.list(new FilenameFilter() {
281:                    public boolean accept(File dir, String name) {
282:                        if (name.startsWith(Long.toString(fromTicket) + ".")) {
283:                            return true;
284:                        }
285:
286:                        return false;
287:                    }
288:                });
289:
290:                if (entries.length == 0) {
291:                    throw new LocalException("No patch available with ticket "
292:                            + fromTicket);
293:                }
294:
295:                long toTicket = fromTicket;
296:
297:                for (int i = 0; i < entries.length; i++) {
298:                    long ticket = Long.parseLong(entries[i].split("\\.")[1]);
299:
300:                    if (ticket > toTicket) {
301:                        toTicket = ticket;
302:                    }
303:                }
304:
305:                return dir + File.separator + PATCHFILES + File.separator
306:                        + fromTicket + "." + toTicket;
307:            }
308:
309:            public String getPatch(final long fromTicket, final long toTicket)
310:                    throws LocalException {
311:                File d = new File(dir + File.separator + PATCHFILES);
312:                String patchName = fromTicket + "." + toTicket;
313:                File f = new File(d, patchName);
314:
315:                if (!f.exists()) {
316:                    throw new LocalException("Patch " + patchName
317:                            + " does not exist!!!");
318:                }
319:
320:                return f.getPath();
321:            }
322:
323:            //	public ArrayList getPatchListFromTo(final long from, final long to)
324:            // throws Exception {
325:            //		File d = new File(dir + File.separator + PATCHFILES);
326:            //		String[] allPatch = d.list();
327:            //		// Check that's possible
328:            //		boolean impossible = true;
329:            //		for (int i = 0; i < allPatch.length; i++) {
330:            //			if (allPatch[i].substring(allPatch[i].indexOf(".") +
331:            // 1).equals(Long.toString(to))) {
332:            //				impossible = false;
333:            //				break;
334:            //			}
335:            //		}
336:            //		if (impossible)
337:            //			throw new Exception("Impossible to find a patch list to reach state of
338:            // ticket " + to);
339:            //
340:            //		// build the list
341:            //		long lastTicket = from;
342:            //		ArrayList result = new ArrayList();
343:            //		lastTicket++;
344:            //		while (lastTicket <= to) {
345:            //			String name = getPatch(lastTicket);
346:            //			lastTicket = Integer.parseInt(name.substring(name.lastIndexOf(".") + 1))
347:            // + 1;
348:            //			result.add(name);
349:            //		}
350:            //		return result;
351:            //	}
352:            public long[][] listPatch() {
353:                File d = new File(dir + File.separator + PATCHFILES);
354:                File patchFile = null;
355:                String[] allPatch = d.list();
356:                long[][] result = new long[allPatch.length][3];
357:
358:                for (int i = 0; i < allPatch.length; i++) {
359:                    patchFile = new File(d, allPatch[i]);
360:
361:                    String[] tickets = allPatch[i].split("\\.");
362:                    result[i][0] = Long.parseLong(tickets[0]); // fromTicket
363:                    result[i][1] = Long.parseLong(tickets[1]); // toTicket
364:                    result[i][2] = patchFile.length(); // fileSize
365:                }
366:
367:                return result;
368:            }
369:
370:            /**
371:             * Build an equivalent compressed patch.
372:             *
373:             * @return the path of that patch file
374:             * @throws Exception
375:             */
376:            public String tagState() throws Exception {
377:                File outputFile = new File(dir + File.separator + PATCHFILES,
378:                        "1." + getLastTicket());
379:
380:                if (outputFile.exists()) {
381:                    return outputFile.getPath();
382:                }
383:
384:                long[][] patchList = listPatch();
385:
386:                // find the shortest path
387:                long ticket = 1;
388:                long tmp = -1;
389:                ArrayList path = new ArrayList();
390:
391:                while (ticket < getLastTicket()) {
392:                    tmp = ticket;
393:
394:                    for (int i = 0; i < patchList.length; i++) {
395:                        long[] line = patchList[i];
396:
397:                        if (line[0] == ticket) {
398:                            if (tmp < line[1]) {
399:                                tmp = line[1];
400:                            }
401:                        }
402:                    }
403:
404:                    path.add(ticket + "." + tmp);
405:                    ticket = tmp + 1;
406:                }
407:
408:                OpVectorFsImpl opv = new OpVectorFsImpl(dir + File.separator
409:                        + CMDS);
410:
411:                for (Iterator i = path.iterator(); i.hasNext();) {
412:                    String patchName = (String) i.next();
413:                    PatchFile pf = new PatchFile(dir + File.separator
414:                            + PATCHFILES + File.separator + patchName);
415:                    pf.buildOpVector(opv, dir + File.separator + ATTACH, null);
416:                }
417:
418:                CompressUtil.compressLog(opv);
419:
420:                OutputStreamWriter osw = new FileWriter(outputFile);
421:                PatchFile.makePatch(opv, osw, null, 1, getLastTicket(),
422:                        "compress", "patch");
423:                osw.close();
424:
425:                return outputFile.getPath();
426:            }
427:
428:            /**
429:             * Construct a Dummy queue to the path specified in parameter.
430:             *
431:             * @param args
432:             */
433:            public static void main(String[] args) {
434:                new DummyClient(new File(args[0]).getAbsolutePath());
435:            }
436:
437:            public static String[] getInternalPropertyList() {
438:                return new String[] { SO6_QUEUE_ID };
439:            }
440:        }
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