Source Code Cross Referenced for NTriple.java in  » RSS-RDF » Jena-2.5.5 » com » hp » hpl » jena » rdf » arp » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » RSS RDF » Jena 2.5.5 » com.hp.hpl.jena.rdf.arp 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *  (c) Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
003:         *  All rights reserved.
004:         *
005:         * Redistribution and use in source and binary forms, with or without
006:         * modification, are permitted provided that the following conditions
007:         * are met:
008:         * 1. Redistributions of source code must retain the above copyright
009:         *    notice, this list of conditions and the following disclaimer.
010:         * 2. Redistributions in binary form must reproduce the above copyright
011:         *    notice, this list of conditions and the following disclaimer in the
012:         *    documentation and/or other materials provided with the distribution.
013:         * 3. The name of the author may not be used to endorse or promote products
014:         *    derived from this software without specific prior written permission.
015:
016:         * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
017:         * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
018:         * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
019:         * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
020:         * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
021:         * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
022:         * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
023:         * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
024:         * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
025:         * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
026:         
027:         * * $Id: NTriple.java,v 1.25 2008/01/02 12:06:46 andy_seaborne Exp $
028:           
029:           AUTHOR:  Jeremy J. Carroll
030:         */
031:        /*
032:         * XML2NTriple.java
033:         *
034:         * Created on July 13, 2001, 10:06 PM
035:         */
036:
037:        package com.hp.hpl.jena.rdf.arp;
038:
039:        import java.io.File;
040:        import java.io.FileInputStream;
041:        import java.io.IOException;
042:        import java.io.InputStream;
043:        import java.io.PrintStream;
044:        import java.net.URL;
045:
046:        import org.xml.sax.ErrorHandler;
047:        import org.xml.sax.Locator;
048:        import org.xml.sax.SAXException;
049:        import org.xml.sax.SAXParseException;
050:
051:        /** A command line interface into ARP.
052:         * Creates NTriple's or just error messages.
053:         * <pre>
054:         * java &lt;class-path&gt; com.hp.hpl.jena.arp.NTriple ( [ -[xstfurR]][ -b xmlBase -[eiw] NNN[,NNN...] ] [ file ] [ url ] )...
055:         * </pre>
056:         * <p>
057:         * All options, files and URLs can be intemingled in any order.
058:         * They are processed from left-to-right.
059:         * <dl>
060:         * file    </dt><dd>  Converts RDF/XML file into N-triples
061:         * </dd><dt>
062:         * url  </dt><dd>     Converts RDF/XML from URL into N-triples
063:         * </dd><dt>
064:         * -b uri </dt><dd>   Sets XML Base to the absolute URI.
065:         * </dd><dt>
066:         * -r    </dt><dd>    Content is RDF (default, no embedding, rdf:RDF tag may be omitted).
067:         * </dd><dt>
068:         * -R    </dt><dd>    RDF embedded in XML document, search for obligatory rdf:RDF start element.
069:         * </dd><dt>
070:         * -t  </dt><dd>      No n-triple output, error checking only.
071:         * </dd><dt>
072:         * -x   </dt><dd>     Lax mode - warnings are suppressed.
073:         * </dd><dt>
074:         * -s    </dt><dd>    Strict mode - most warnings are errors.
075:         * </dd><dt>
076:         * -u     </dt><dd>   Allow unqualified attributes (defaults to warning).
077:         * </dd><dt>
078:         * -f    </dt><dd>    All errors are fatal - report first one only.
079:         * </dd><dt>
080:         * -n    </dt><dd>    Show line numbers of each triple.
081:         * </dd><dt>
082:         * -b url </dt><dd>   Sets XML Base to the absolute url.
083:         * </dd><dt>
084:         * -e NNN[,NNN...]</dt><dd>
085:         * Treats numbered warning conditions as errrors.
086:         * </dd><dt>
087:         * -w NNN[,NNN...]</dt><dd>
088:         * Treats numbered error conditions as warnings.
089:         * </dd><dt>
090:         * -i NNN[,NNN...]
091:         * </dt><dd>
092:         * Ignores numbered error/warning conditions.
093:         * </dl>
094:         * @author jjc
095:         */
096:        public class NTriple implements  ARPErrorNumbers {
097:
098:            private static StringBuffer line = new StringBuffer();
099:            private static ARP arp;
100:            private static String xmlBase = null;
101:            private static boolean numbers = false;
102:
103:            /** Starts an RDF/XML to NTriple converter.
104:             * @param args The command-line arguments.
105:             */
106:            static public void main(String args[]) {
107:                mainEh(args, null, null);
108:            }
109:
110:            static StatementHandler andMeToo = null;
111:
112:            /** Starts an RDF/XML to NTriple converter,
113:             * using an error handler, and an ARPHandler.
114:             * Statements get processed both by this class,
115:             * and by the passed in StatementHandler
116:             * @param args The command-line arguments.
117:             * @param eh Can be null.
118:             * @param ap Can be null.
119:             */
120:            static public void mainEh(String args[], ErrorHandler eh,
121:                    ARPEventHandler ap) {
122:                boolean doneOne = false;
123:                startMem = -1;
124:                andMeToo = ap;
125:                //SH sh = new SH();
126:                int i;
127:                arp = new ARP();
128:                ARPHandlers handlers = arp.getHandlers();
129:                handlers.setStatementHandler(getSH(true));
130:                //        arp.getOptions().setEmbedding(true);
131:                if (ap != null) {
132:                    handlers.setNamespaceHandler(ap);
133:                    handlers.setExtendedHandler(ap);
134:                }
135:                if (eh != null)
136:                    handlers.setErrorHandler(eh);
137:
138:                for (i = 0; i < args.length - 1; i++) {
139:                    if (args[i].startsWith("-")) {
140:                        i += processOpts(args[i].substring(1), args[i + 1]);
141:                    } else {
142:                        doneOne = true;
143:                        process(args[i]);
144:                    }
145:                }
146:                if (args.length > 0) {
147:                    if (args[i].startsWith("-")) {
148:                        if (doneOne
149:                                || processOpts(args[i].substring(1), "100") == 1)
150:                            usage();
151:                    } else {
152:                        doneOne = true;
153:                        process(args[i]);
154:                    }
155:                }
156:                if (!doneOne) {
157:                    process(System.in, "http://example.org/stdin",
158:                            "standard input");
159:                }
160:                if (startMem != -1) {
161:                    rt.gc();
162:                    System.out.println(rt.totalMemory() - rt.freeMemory()
163:                            - startMem);
164:                    rt.gc();
165:                    System.out.println(rt.totalMemory() - rt.freeMemory()
166:                            - startMem);
167:                    rt.gc();
168:                    System.out.println(rt.totalMemory() - rt.freeMemory()
169:                            - startMem);
170:                    rt.gc();
171:                    System.out.println(rt.totalMemory() - rt.freeMemory()
172:                            - startMem);
173:                }
174:            }
175:
176:            /**
177:             * @param b false for quiet.
178:             */
179:            private static StatementHandler getSH(boolean b) {
180:                StatementHandler rslt = b ? (StatementHandler) new SH(
181:                        System.out) : new NoSH();
182:                if (andMeToo != null)
183:                    rslt = new TwoSH(rslt, andMeToo);
184:                return rslt;
185:            }
186:
187:            static private void lineNumber() {
188:                if (numbers) {
189:                    Locator locator = arp.getLocator();
190:                    if (locator != null)
191:                        print("# " + locator.getSystemId() + ":"
192:                                + locator.getLineNumber() + "("
193:                                + locator.getColumnNumber() + ")\n");
194:                }
195:            }
196:
197:            /*
198:             * Options:
199:             *  -x   Lax, Warnings suppressed
200:             *  -s   Strict, Warnings are errors
201:             *  -f   All errors are fatal.
202:             *  -u   Suppress unqualified attribute warnings
203:             *  -t   Error checking only, no n-triple output
204:             *  -b:  set xml:base (same for all files?)
205:             *  -e:  convert numbered warnings to errors
206:             *  -i:  suppress numbered warnings
207:             *  -w:  convert numbered errors/suppressed warnings to warnings
208:             *  -n:  give line numbers
209:             *
210:             */
211:            static void usage() {
212:                System.err
213:                        .println("java <class-path> "
214:                                + NTriple.class.getName()
215:                                + " ( [ -[xstfurR]][ -b xmlBase -[eiw] NNN[,NNN...] ] [ file ] [ url ] )... ");
216:                System.err
217:                        .println("    All options, files and URLs can be intemingled in any order.");
218:                System.err
219:                        .println("    They are processed from left-to-right.");
220:                System.err
221:                        .println("    file      Converts RDF/XML file into N-triples");
222:                System.err
223:                        .println("    url       Converts RDF/XML from URL into N-triples");
224:                System.err
225:                        .println("    -b uri    Sets XML Base to the absolute URI.");
226:                System.err
227:                        .println("    -r        Content is RDF (default, no embedding, rdf:RDF tag may be omitted).");
228:                System.err
229:                        .println("    -R        RDF embedded in XML document, search for obligatory rdf:RDF start element.");
230:                System.err
231:                        .println("    -t        No n-triple output, error checking only.");
232:                System.err
233:                        .println("    -x        Lax mode - warnings are suppressed.");
234:                System.err
235:                        .println("    -s        Strict mode - most warnings are errors.");
236:                System.err
237:                        .println("    -n        Show line and column numbers.");
238:                System.err
239:                        .println("    -u        Allow unqualified attributes (defaults to warning).");
240:                System.err
241:                        .println("    -f        All errors are fatal - report first one only.");
242:                System.err
243:                        .println("    -b url    Sets XML Base to the absolute url.");
244:                System.err.println("    -e NNN[,NNN...]");
245:                System.err
246:                        .println("              Treats numbered warning conditions as errrors.");
247:                System.err.println("    -w NNN[,NNN...]");
248:                System.err
249:                        .println("              Treats numbered error conditions as warnings.");
250:                System.err.println("    -i NNN[,NNN...]");
251:                System.err
252:                        .println("              Ignores numbered error/warning conditions.");
253:                System.exit(1);
254:            }
255:
256:            static final private Runtime rt = Runtime.getRuntime();
257:            static private int startMem = -1;
258:
259:            static private int processOpts(String opts, String nextArg) {
260:                boolean usedNext = false;
261:                ARPOptions options = arp.getOptions();
262:                for (int i = 0; i < opts.length(); i++) {
263:                    char opt = opts.charAt(i);
264:                    if ("beiwD".indexOf(opt) != -1) {
265:                        if (usedNext)
266:                            usage();
267:                        usedNext = true;
268:                    }
269:                    switch (opt) {
270:                    case 'D':
271:                        final int nStatements = Integer.parseInt(nextArg);
272:                        rt.gc();
273:                        rt.gc();
274:                        startMem = (int) (rt.totalMemory() - rt.freeMemory());
275:                        arp.getHandlers().setStatementHandler(
276:                                new StatementHandler() {
277:                                    int debugC = 0;
278:
279:                                    public void statement(AResource subj,
280:                                            AResource pred, AResource obj) {
281:                                        statement(null, null, (ALiteral) null);
282:
283:                                    }
284:
285:                                    public void statement(AResource subj,
286:                                            AResource pred, ALiteral lit) {
287:                                        if (++debugC % 100 == 0) {
288:                                            System.out.println("T: " + debugC);
289:                                            rt.gc();
290:                                            System.out
291:                                                    .println("M1: "
292:                                                            + (rt.totalMemory()
293:                                                                    - rt
294:                                                                            .freeMemory() - startMem));
295:                                            rt.gc();
296:                                            System.out
297:                                                    .println("M2: "
298:                                                            + (rt.totalMemory()
299:                                                                    - rt
300:                                                                            .freeMemory() - startMem));
301:                                        }
302:                                        if (debugC == 1) {
303:                                            rt.gc();
304:                                            rt.gc();
305:                                            startMem = (int) (rt.totalMemory() - rt
306:                                                    .freeMemory());
307:                                        }
308:                                        if (debugC == nStatements) {
309:
310:                                            rt.gc();
311:                                            System.err.println("Kill me now.");
312:                                            try {
313:                                                Thread.sleep(200000);
314:                                            } catch (Exception e) {
315:                                                // ignore
316:                                            }
317:
318:                                        }
319:
320:                                    }
321:                                });
322:                        break;
323:                    case 'x':
324:                        options.setLaxErrorMode();
325:                        break;
326:                    case 's':
327:                        options.setStrictErrorMode();
328:                        break;
329:                    case 't':
330:                        arp.getHandlers().setStatementHandler(getSH(false));
331:                        break;
332:                    case 'r':
333:                        options.setEmbedding(false);
334:                        break;
335:                    case 'R':
336:                        options.setEmbedding(true);
337:                        break;
338:                    case 'n':
339:                        numbers = true;
340:                        break;
341:                    case 'E':
342:                        arp.getHandlers().setErrorHandler(new ErrorHandler() {
343:                            public void warning(SAXParseException exception) { /* ignore */
344:                            }
345:
346:                            public void error(SAXParseException exception) { /* ignore */
347:                            }
348:
349:                            public void fatalError(SAXParseException exception) { /* ignore */
350:                            }
351:                        });
352:
353:                        arp.setBadStatementHandler(new SH(System.err));
354:                        break;
355:                    case 'b':
356:                        xmlBase = nextArg;
357:                        break;
358:                    case 'e':
359:                        setErrorMode(nextArg, EM_ERROR);
360:                        break;
361:                    case 'i':
362:                        setErrorMode(nextArg, EM_IGNORE);
363:                        break;
364:                    case 'w':
365:                        setErrorMode(nextArg, EM_WARNING);
366:                        break;
367:                    case 'f':
368:                        for (int j = 0; j < 400; j++) {
369:                            if (options.setErrorMode(j, -1) == EM_ERROR)
370:                                options.setErrorMode(j, EM_FATAL);
371:                        }
372:                        break;
373:                    case 'u':
374:                        options.setErrorMode(WARN_UNQUALIFIED_ATTRIBUTE,
375:                                EM_IGNORE);
376:                        options.setErrorMode(WARN_UNQUALIFIED_RDF_ATTRIBUTE,
377:                                EM_IGNORE);
378:                        break;
379:                    default:
380:                        usage();
381:                    }
382:                }
383:                return usedNext ? 1 : 0;
384:            }
385:
386:            static private void setErrorMode(String numbers, int mode) {
387:                int n[] = new int[3];
388:                int j = 0;
389:                numbers += ",";
390:                for (int i = 0; i < numbers.length(); i++) {
391:                    char c = numbers.charAt(i);
392:                    switch (c) {
393:                    case '0':
394:                    case '1':
395:                    case '2':
396:                    case '3':
397:                    case '4':
398:                    case '5':
399:                    case '6':
400:                    case '7':
401:                    case '8':
402:                    case '9':
403:                        if (j == 3)
404:                            usage();
405:                        n[j++] = c - '0';
406:                        break;
407:                    case ' ':
408:                    case ';':
409:                    case ',':
410:                        if (i == 0)
411:                            usage();
412:                        switch (j) {
413:                        case 0:
414:                            break;
415:                        case 3:
416:                            arp.getOptions().setErrorMode(
417:                                    n[0] * 100 + n[1] * 10 + n[2], mode);
418:                            j = 0;
419:                            break;
420:                        default:
421:                            usage();
422:                        }
423:                        break;
424:                    default:
425:                        usage();
426:                    }
427:                }
428:            }
429:
430:            static private void process(String surl) {
431:                InputStream in;
432:
433:                URL url;
434:                String baseURL;
435:
436:                try {
437:                    File ff = new File(surl);
438:                    in = new FileInputStream(ff);
439:                    url = ff.toURL();
440:                    baseURL = url.toExternalForm();
441:                    if (baseURL.startsWith("file:/")
442:                            && !baseURL.startsWith("file://")) {
443:                        baseURL = "file://" + baseURL.substring(5);
444:                    }
445:                } catch (Exception ignore) {
446:                    try {
447:                        url = new URL(surl);
448:                        in = url.openStream();
449:                        baseURL = url.toExternalForm();
450:                    } catch (Exception e) {
451:                        System.err.println("ARP: Failed to open: " + surl);
452:                        System.err.println("    "
453:                                + ParseException.formatMessage(ignore));
454:                        System.err.println("    "
455:                                + ParseException.formatMessage(e));
456:                        return;
457:                    }
458:                }
459:                process(in, baseURL, surl);
460:            }
461:
462:            static private void process(InputStream in, String xmlBasex,
463:                    String surl) {
464:                String xmlBasey = xmlBase == null ? xmlBasex : xmlBase;
465:                try {
466:                    arp.load(in, xmlBasey);
467:                } catch (IOException e) {
468:                    System.err.println("Error: " + surl + ": "
469:                            + ParseException.formatMessage(e));
470:                } catch (SAXParseException e) {
471:                    // already reported.
472:                } catch (SAXException sax) {
473:                    System.err.println("Error: " + surl + ": "
474:                            + ParseException.formatMessage(sax));
475:                }
476:            }
477:
478:            private static class TwoSH implements  StatementHandler {
479:                final StatementHandler a, b;
480:
481:                public void statement(AResource subj, AResource pred,
482:                        AResource obj) {
483:                    a.statement(subj, pred, obj);
484:                    b.statement(subj, pred, obj);
485:                }
486:
487:                public void statement(AResource subj, AResource pred,
488:                        ALiteral lit) {
489:                    a.statement(subj, pred, lit);
490:                    b.statement(subj, pred, lit);
491:                }
492:
493:                TwoSH(StatementHandler A, StatementHandler B) {
494:                    a = A;
495:                    b = B;
496:                }
497:            }
498:
499:            private static class NoSH implements  StatementHandler {
500:                //		private int ix = 0;
501:                //		private void userData(AResource n){
502:                //		    if (n.isAnonymous()) {
503:                ////		        n.setUserData(new Integer(ix++));
504:                //		    }
505:                //		}
506:                public void statement(AResource subj, AResource pred,
507:                        AResource obj) {
508:                    //		    userData(subj);
509:                    //		    userData(pred);
510:                    //		    userData(obj);
511:                }
512:
513:                public void statement(AResource subj, AResource pred,
514:                        ALiteral lit) {
515:                    //		    userData(subj);
516:                    //		    userData(pred);
517:                }
518:            }
519:
520:            private static class SH implements  StatementHandler {
521:                PrintStream out;
522:
523:                SH(PrintStream out) {
524:                    this .out = out;
525:                }
526:
527:                public void statement(AResource subj, AResource pred,
528:                        AResource obj) {
529:                    lineNumber();
530:                    resource(subj);
531:                    resource(pred);
532:                    resource(obj);
533:                    line.append('.');
534:                    out.println(line);
535:                    line.setLength(0);
536:                }
537:
538:                public void statement(AResource subj, AResource pred,
539:                        ALiteral lit) {
540:                    //			String lang = lit.getLang();
541:                    //			String parseType = lit.getParseType();
542:                    lineNumber();
543:                    /*
544:                    if (parseType != null) {
545:                    	System.out.print("# ");
546:                    	if (parseType != null)
547:                    		System.out.print("'" + parseType + "'");
548:                    	System.out.println();
549:                    }
550:                     */
551:                    resource(subj);
552:                    resource(pred);
553:                    literal(lit);
554:                    line.append('.');
555:                    out.println(line);
556:                    line.setLength(0);
557:                }
558:            }
559:
560:            static private void print(String s) {
561:                line.append(s);
562:            }
563:
564:            static private void resource(AResource r) {
565:                if (r.isAnonymous()) {
566:                    print("_:j");
567:                    print(r.getAnonymousID());
568:                    print(" ");
569:                } else {
570:                    print("<");
571:                    escapeURI(r.getURI());
572:                    print("> ");
573:                }
574:            }
575:
576:            static private void escape(String s) {
577:                int lg = s.length();
578:                for (int i = 0; i < lg; i++) {
579:                    char ch = s.charAt(i);
580:                    switch (ch) {
581:                    case '\\':
582:                        print("\\\\");
583:                        break;
584:                    case '"':
585:                        print("\\\"");
586:                        break;
587:                    case '\n':
588:                        print("\\n");
589:                        break;
590:                    case '\r':
591:                        print("\\r");
592:                        break;
593:                    case '\t':
594:                        print("\\t");
595:                        break;
596:                    default:
597:                        if (ch >= 32 && ch <= 126)
598:                            line.append(ch);
599:                        else {
600:                            print("\\u");
601:                            String hexstr = Integer.toHexString(ch)
602:                                    .toUpperCase();
603:                            int pad = 4 - hexstr.length();
604:
605:                            for (; pad > 0; pad--)
606:                                print("0");
607:                            print(hexstr);
608:                        }
609:                    }
610:                }
611:            }
612:
613:            static private boolean okURIChars[] = new boolean[128];
614:            static {
615:                for (int i = 32; i < 127; i++)
616:                    okURIChars[i] = true;
617:                okURIChars['<'] = false;
618:                okURIChars['>'] = false;
619:                okURIChars['\\'] = false;
620:
621:            }
622:
623:            static private void escapeURI(String s) {
624:                int lg = s.length();
625:                for (int i = 0; i < lg; i++) {
626:                    char ch = s.charAt(i);
627:                    if (ch < okURIChars.length && okURIChars[ch]) {
628:                        line.append(ch);
629:                    } else {
630:                        print("\\u");
631:                        String hexstr = Integer.toHexString(ch).toUpperCase();
632:                        int pad = 4 - hexstr.length();
633:
634:                        for (; pad > 0; pad--)
635:                            print("0");
636:                        print(hexstr);
637:                    }
638:                }
639:            }
640:
641:            static private void literal(ALiteral l) {
642:                //if (l.isWellFormedXML())
643:                //	System.out.print("xml");
644:                line.append('"');
645:                escape(l.toString());
646:                line.append('"');
647:                String lang = l.getLang();
648:                if (lang != null && !lang.equals("")) {
649:                    line.append('@');
650:                    print(lang);
651:                }
652:                String dt = l.getDatatypeURI();
653:                if (dt != null && !dt.equals("")) {
654:                    print("^^<");
655:                    escapeURI(dt);
656:                    line.append('>');
657:                }
658:
659:                line.append(' ');
660:            }
661:
662:        }
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