Source Code Cross Referenced for BurlapOutput.java in  » EJB-Server-resin-3.1.5 » hessian » com » caucho » burlap » io » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » hessian » com.caucho.burlap.io 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 2001-2004 Caucho Technology, Inc.  All rights reserved.
003:         *
004:         * The Apache Software License, Version 1.1
005:         *
006:         * Redistribution and use in source and binary forms, with or without
007:         * modification, are permitted provided that the following conditions
008:         * are met:
009:         *
010:         * 1. Redistributions of source code must retain the above copyright
011:         *    notice, this list of conditions and the following disclaimer.
012:         *
013:         * 2. Redistributions in binary form must reproduce the above copyright
014:         *    notice, this list of conditions and the following disclaimer in
015:         *    the documentation and/or other materials provided with the
016:         *    distribution.
017:         *
018:         * 3. The end-user documentation included with the redistribution, if
019:         *    any, must include the following acknowlegement:
020:         *       "This product includes software developed by the
021:         *        Caucho Technology (http://www.caucho.com/)."
022:         *    Alternately, this acknowlegement may appear in the software itself,
023:         *    if and wherever such third-party acknowlegements normally appear.
024:         *
025:         * 4. The names "Burlap", "Resin", and "Caucho" must not be used to
026:         *    endorse or promote products derived from this software without prior
027:         *    written permission. For written permission, please contact
028:         *    info@caucho.com.
029:         *
030:         * 5. Products derived from this software may not be called "Resin"
031:         *    nor may "Resin" appear in their names without prior written
032:         *    permission of Caucho Technology.
033:         *
034:         * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
035:         * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
036:         * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
037:         * DISCLAIMED.  IN NO EVENT SHALL CAUCHO TECHNOLOGY OR ITS CONTRIBUTORS
038:         * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
039:         * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
040:         * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
041:         * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
042:         * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
043:         * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
044:         * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
045:         *
046:         * @author Scott Ferguson
047:         */
048:
049:        package com.caucho.burlap.io;
050:
051:        import com.caucho.hessian.io.Serializer;
052:        import com.caucho.hessian.io.SerializerFactory;
053:
054:        import java.io.IOException;
055:        import java.io.OutputStream;
056:        import java.util.Calendar;
057:        import java.util.Date;
058:        import java.util.IdentityHashMap;
059:        import java.util.TimeZone;
060:
061:        /**
062:         * Output stream for Burlap requests, compatible with microedition
063:         * Java.  It only uses classes and types available in JDK.
064:         *
065:         * <p>Since BurlapOutput does not depend on any classes other than
066:         * in the JDK, it can be extracted independently into a smaller package.
067:         *
068:         * <p>BurlapOutput is unbuffered, so any client needs to provide
069:         * its own buffering.
070:         *
071:         * <pre>
072:         * OutputStream os = ...; // from http connection
073:         * BurlapOutput out = new BurlapOutput(os);
074:         * String value;
075:         *
076:         * out.startCall("hello");  // start hello call
077:         * out.writeString("arg1"); // write a string argument
078:         * out.completeCall();      // complete the call
079:         * </pre>
080:         */
081:        public class BurlapOutput extends AbstractBurlapOutput {
082:            // the output stream
083:            protected OutputStream os;
084:            // map of references
085:            private IdentityHashMap _refs;
086:
087:            private Date date;
088:            private Calendar utcCalendar;
089:            private Calendar localCalendar;
090:
091:            /**
092:             * Creates a new Burlap output stream, initialized with an
093:             * underlying output stream.
094:             *
095:             * @param os the underlying output stream.
096:             */
097:            public BurlapOutput(OutputStream os) {
098:                init(os);
099:            }
100:
101:            /**
102:             * Creates an uninitialized Burlap output stream.
103:             */
104:            public BurlapOutput() {
105:            }
106:
107:            /**
108:             * Initializes the output
109:             */
110:            public void init(OutputStream os) {
111:                this .os = os;
112:
113:                _refs = null;
114:
115:                if (_serializerFactory == null)
116:                    _serializerFactory = new SerializerFactory();
117:            }
118:
119:            /**
120:             * Writes a complete method call.
121:             */
122:            public void call(String method, Object[] args) throws IOException {
123:                startCall(method);
124:
125:                if (args != null) {
126:                    for (int i = 0; i < args.length; i++)
127:                        writeObject(args[i]);
128:                }
129:
130:                completeCall();
131:            }
132:
133:            /**
134:             * Starts the method call.  Clients would use <code>startCall</code>
135:             * instead of <code>call</code> if they wanted finer control over
136:             * writing the arguments, or needed to write headers.
137:             *
138:             * <code><pre>
139:             * &lt;burlap:call>
140:             * &lt;method>method-name&lt;/method>
141:             * </pre></code>
142:             *
143:             * @param method the method name to call.
144:             */
145:            public void startCall(String method) throws IOException {
146:                print("<burlap:call><method>");
147:                print(method);
148:                print("</method>");
149:            }
150:
151:            /**
152:             * Starts the method call.  Clients would use <code>startCall</code>
153:             * instead of <code>call</code> if they wanted finer control over
154:             * writing the arguments, or needed to write headers.
155:             *
156:             * <code><pre>
157:             * &lt;method>method-name&lt;/method>
158:             * </pre></code>
159:             *
160:             * @param method the method name to call.
161:             */
162:            public void startCall() throws IOException {
163:                print("<burlap:call>");
164:            }
165:
166:            /**
167:             * Writes the method for a call.
168:             *
169:             * <code><pre>
170:             * &lt;method>value&lt;/method>
171:             * </pre></code>
172:             *
173:             * @param method the method name to call.
174:             */
175:            public void writeMethod(String method) throws IOException {
176:                print("<method>");
177:                print(method);
178:                print("</method>");
179:            }
180:
181:            /**
182:             * Completes.
183:             *
184:             * <code><pre>
185:             * &lt;/burlap:call>
186:             * </pre></code>
187:             */
188:            public void completeCall() throws IOException {
189:                print("</burlap:call>");
190:            }
191:
192:            /**
193:             * Starts the reply
194:             *
195:             * <p>A successful completion will have a single value:
196:             *
197:             * <pre>
198:             * r
199:             * </pre>
200:             */
201:            public void startReply() throws IOException {
202:                print("<burlap:reply>");
203:            }
204:
205:            /**
206:             * Completes reading the reply
207:             *
208:             * <p>A successful completion will have a single value:
209:             *
210:             * <pre>
211:             * &lt;/burlap:reply>
212:             * </pre>
213:             */
214:            public void completeReply() throws IOException {
215:                print("</burlap:reply>");
216:            }
217:
218:            /**
219:             * Writes a header name.  The header value must immediately follow.
220:             *
221:             * <code><pre>
222:             * &lt;header>foo&lt;/header>&lt;int>value&lt;/int>
223:             * </pre></code>
224:             */
225:            public void writeHeader(String name) throws IOException {
226:                print("<header>");
227:                printString(name);
228:                print("</header>");
229:            }
230:
231:            /**
232:             * Writes a fault.  The fault will be written
233:             * as a descriptive string followed by an object:
234:             *
235:             * <code><pre>
236:             * &lt;fault>
237:             * &lt;string>code
238:             * &lt;string>the fault code
239:             *
240:             * &lt;string>message
241:             * &lt;string>the fault mesage
242:             *
243:             * &lt;string>detail
244:             * &lt;map>t\x00\xnnjavax.ejb.FinderException
245:             *     ...
246:             * &lt;/map>
247:             * &lt;/fault>
248:             * </pre></code>
249:             *
250:             * @param code the fault code, a three digit
251:             */
252:            public void writeFault(String code, String message, Object detail)
253:                    throws IOException {
254:                print("<fault>");
255:                writeString("code");
256:                writeString(code);
257:
258:                writeString("message");
259:                writeString(message);
260:
261:                if (detail != null) {
262:                    writeString("detail");
263:                    writeObject(detail);
264:                }
265:                print("</fault>");
266:            }
267:
268:            /**
269:             * Writes any object to the output stream.
270:             */
271:            public void writeObject(Object object) throws IOException {
272:                if (object == null) {
273:                    writeNull();
274:                    return;
275:                }
276:
277:                Serializer serializer;
278:
279:                serializer = _serializerFactory
280:                        .getSerializer(object.getClass());
281:
282:                serializer.writeObject(object, this );
283:            }
284:
285:            /**
286:             * Writes the list header to the stream.  List writers will call
287:             * <code>writeListBegin</code> followed by the list contents and then
288:             * call <code>writeListEnd</code>.
289:             *
290:             * <code><pre>
291:             * &lt;list>
292:             *   &lt;type>java.util.ArrayList&lt;/type>
293:             *   &lt;length>3&lt;/length>
294:             *   &lt;int>1&lt;/int>
295:             *   &lt;int>2&lt;/int>
296:             *   &lt;int>3&lt;/int>
297:             * &lt;/list>
298:             * </pre></code>
299:             */
300:            public boolean writeListBegin(int length, String type)
301:                    throws IOException {
302:                print("<list><type>");
303:
304:                if (type != null)
305:                    print(type);
306:
307:                print("</type><length>");
308:                print(length);
309:                print("</length>");
310:
311:                return true;
312:            }
313:
314:            /**
315:             * Writes the tail of the list to the stream.
316:             */
317:            public void writeListEnd() throws IOException {
318:                print("</list>");
319:            }
320:
321:            /**
322:             * Writes the map header to the stream.  Map writers will call
323:             * <code>writeMapBegin</code> followed by the map contents and then
324:             * call <code>writeMapEnd</code>.
325:             *
326:             * <code><pre>
327:             * &lt;map>
328:             *   &lt;type>type&lt;/type>
329:             *   (&lt;key> &lt;value>)*
330:             * &lt;/map>
331:             * </pre></code>
332:             */
333:            public void writeMapBegin(String type) throws IOException {
334:                print("<map><type>");
335:                if (type != null)
336:                    print(type);
337:
338:                print("</type>");
339:            }
340:
341:            /**
342:             * Writes the tail of the map to the stream.
343:             */
344:            public void writeMapEnd() throws IOException {
345:                print("</map>");
346:            }
347:
348:            /**
349:             * Writes a remote object reference to the stream.  The type is the
350:             * type of the remote interface.
351:             *
352:             * <code><pre>
353:             * &lt;remote>
354:             *   &lt;type>test.account.Account&lt;/type>
355:             *   &lt;string>http://caucho.com/foo;ejbid=bar&lt;/string>
356:             * &lt;/remote>
357:             * </pre></code>
358:             */
359:            public void writeRemote(String type, String url) throws IOException {
360:                print("<remote><type>");
361:                print(type);
362:                print("</type><string>");
363:                print(url);
364:                print("</string></remote>");
365:            }
366:
367:            /**
368:             * Writes a boolean value to the stream.  The boolean will be written
369:             * with the following syntax:
370:             *
371:             * <code><pre>
372:             * &lt;boolean>0&lt;/boolean>
373:             * &lt;boolean>1&lt;/boolean>
374:             * </pre></code>
375:             *
376:             * @param value the boolean value to write.
377:             */
378:            public void writeBoolean(boolean value) throws IOException {
379:                if (value)
380:                    print("<boolean>1</boolean>");
381:                else
382:                    print("<boolean>0</boolean>");
383:            }
384:
385:            /**
386:             * Writes an integer value to the stream.  The integer will be written
387:             * with the following syntax:
388:             *
389:             * <code><pre>
390:             * &lt;int>int value&lt;/int>
391:             * </pre></code>
392:             *
393:             * @param value the integer value to write.
394:             */
395:            public void writeInt(int value) throws IOException {
396:                print("<int>");
397:                print(value);
398:                print("</int>");
399:            }
400:
401:            /**
402:             * Writes a long value to the stream.  The long will be written
403:             * with the following syntax:
404:             *
405:             * <code><pre>
406:             * &lt;long>int value&lt;/long>
407:             * </pre></code>
408:             *
409:             * @param value the long value to write.
410:             */
411:            public void writeLong(long value) throws IOException {
412:                print("<long>");
413:                print(value);
414:                print("</long>");
415:            }
416:
417:            /**
418:             * Writes a double value to the stream.  The double will be written
419:             * with the following syntax:
420:             *
421:             * <code><pre>
422:             * &lt;double>value&lt;/double>
423:             * </pre></code>
424:             *
425:             * @param value the double value to write.
426:             */
427:            public void writeDouble(double value) throws IOException {
428:                print("<double>");
429:                print(value);
430:                print("</double>");
431:            }
432:
433:            /**
434:             * Writes a date to the stream.
435:             *
436:             * <code><pre>
437:             * &lt;date>iso8901&lt;/date>
438:             * </pre></code>
439:             *
440:             * @param time the date in milliseconds from the epoch in UTC
441:             */
442:            public void writeUTCDate(long time) throws IOException {
443:                print("<date>");
444:                if (utcCalendar == null) {
445:                    utcCalendar = Calendar.getInstance(TimeZone
446:                            .getTimeZone("UTC"));
447:                    date = new Date();
448:                }
449:
450:                date.setTime(time);
451:                utcCalendar.setTime(date);
452:
453:                printDate(utcCalendar);
454:                print("</date>");
455:            }
456:
457:            /**
458:             * Writes a null value to the stream.
459:             * The null will be written with the following syntax
460:             *
461:             * <code><pre>
462:             * &lt;null>&lt;/null>
463:             * </pre></code>
464:             *
465:             * @param value the string value to write.
466:             */
467:            public void writeNull() throws IOException {
468:                print("<null></null>");
469:            }
470:
471:            /**
472:             * Writes a string value to the stream using UTF-8 encoding.
473:             * The string will be written with the following syntax:
474:             *
475:             * <code><pre>
476:             * &lt;string>string-value&lt;/string>
477:             * </pre></code>
478:             *
479:             * If the value is null, it will be written as
480:             *
481:             * <code><pre>
482:             * &lt;null>&lt;/null>
483:             * </pre></code>
484:             *
485:             * @param value the string value to write.
486:             */
487:            public void writeString(String value) throws IOException {
488:                if (value == null) {
489:                    print("<null></null>");
490:                } else {
491:                    print("<string>");
492:                    printString(value);
493:                    print("</string>");
494:                }
495:            }
496:
497:            /**
498:             * Writes a string value to the stream using UTF-8 encoding.
499:             * The string will be written with the following syntax:
500:             *
501:             * <code><pre>
502:             * S b16 b8 string-value
503:             * </pre></code>
504:             *
505:             * If the value is null, it will be written as
506:             *
507:             * <code><pre>
508:             * N
509:             * </pre></code>
510:             *
511:             * @param value the string value to write.
512:             */
513:            public void writeString(char[] buffer, int offset, int length)
514:                    throws IOException {
515:                if (buffer == null) {
516:                    print("<null></null>");
517:                } else {
518:                    print("<string>");
519:                    printString(buffer, offset, length);
520:                    print("</string>");
521:                }
522:            }
523:
524:            /**
525:             * Writes a byte array to the stream.
526:             * The array will be written with the following syntax:
527:             *
528:             * <code><pre>
529:             * &lt;base64>bytes&lt;/base64>
530:             * </pre></code>
531:             *
532:             * If the value is null, it will be written as
533:             *
534:             * <code><pre>
535:             * &lt;null>&lt;/null>
536:             * </pre></code>
537:             *
538:             * @param value the string value to write.
539:             */
540:            public void writeBytes(byte[] buffer) throws IOException {
541:                if (buffer == null)
542:                    print("<null></null>");
543:                else
544:                    writeBytes(buffer, 0, buffer.length);
545:            }
546:
547:            /**
548:             * Writes a byte array to the stream.
549:             * The array will be written with the following syntax:
550:             *
551:             * <code><pre>
552:             * &lt;base64>bytes&lt;/base64>
553:             * </pre></code>
554:             *
555:             * If the value is null, it will be written as
556:             *
557:             * <code><pre>
558:             * &lt;null>&lt;/null>
559:             * </pre></code>
560:             *
561:             * @param value the string value to write.
562:             */
563:            public void writeBytes(byte[] buffer, int offset, int length)
564:                    throws IOException {
565:                if (buffer == null) {
566:                    print("<null></null>");
567:                } else {
568:                    print("<base64>");
569:
570:                    int i = 0;
571:                    for (; i + 2 < length; i += 3) {
572:                        if (i != 0 && (i & 0x3f) == 0)
573:                            print('\n');
574:
575:                        int v = (((buffer[offset + i] & 0xff) << 16)
576:                                + ((buffer[offset + i + 1] & 0xff) << 8) + (buffer[offset
577:                                + i + 2] & 0xff));
578:
579:                        print(encode(v >> 18));
580:                        print(encode(v >> 12));
581:                        print(encode(v >> 6));
582:                        print(encode(v));
583:                    }
584:
585:                    if (i + 1 < length) {
586:                        int v = (((buffer[offset + i] & 0xff) << 8) + (buffer[offset
587:                                + i + 1] & 0xff));
588:
589:                        print(encode(v >> 10));
590:                        print(encode(v >> 4));
591:                        print(encode(v << 2));
592:                        print('=');
593:                    } else if (i < length) {
594:                        int v = buffer[offset + i] & 0xff;
595:
596:                        print(encode(v >> 2));
597:                        print(encode(v << 4));
598:                        print('=');
599:                        print('=');
600:                    }
601:
602:                    print("</base64>");
603:                }
604:            }
605:
606:            /**
607:             * Writes a byte buffer to the stream.
608:             */
609:            public void writeByteBufferStart() throws IOException {
610:                throw new UnsupportedOperationException();
611:            }
612:
613:            /**
614:             * Writes a byte buffer to the stream.
615:             *
616:             * <code><pre>
617:             * b b16 b18 bytes
618:             * </pre></code>
619:             */
620:            public void writeByteBufferPart(byte[] buffer, int offset,
621:                    int length) throws IOException {
622:                throw new UnsupportedOperationException();
623:            }
624:
625:            /**
626:             * Writes a byte buffer to the stream.
627:             *
628:             * <code><pre>
629:             * b b16 b18 bytes
630:             * </pre></code>
631:             */
632:            public void writeByteBufferEnd(byte[] buffer, int offset, int length)
633:                    throws IOException {
634:                throw new UnsupportedOperationException();
635:            }
636:
637:            /**
638:             * Encodes a digit
639:             */
640:            private char encode(int d) {
641:                d &= 0x3f;
642:                if (d < 26)
643:                    return (char) (d + 'A');
644:                else if (d < 52)
645:                    return (char) (d + 'a' - 26);
646:                else if (d < 62)
647:                    return (char) (d + '0' - 52);
648:                else if (d == 62)
649:                    return '+';
650:                else
651:                    return '/';
652:            }
653:
654:            /**
655:             * Writes a reference.
656:             *
657:             * <code><pre>
658:             * &lt;ref>int&lt;/ref>
659:             * </pre></code>
660:             *
661:             * @param value the integer value to write.
662:             */
663:            public void writeRef(int value) throws IOException {
664:                print("<ref>");
665:                print(value);
666:                print("</ref>");
667:            }
668:
669:            /**
670:             * If the object has already been written, just write its ref.
671:             *
672:             * @return true if we're writing a ref.
673:             */
674:            public boolean addRef(Object object) throws IOException {
675:                if (_refs == null)
676:                    _refs = new IdentityHashMap();
677:
678:                Integer ref = (Integer) _refs.get(object);
679:
680:                if (ref != null) {
681:                    int value = ref.intValue();
682:
683:                    writeRef(value);
684:                    return true;
685:                } else {
686:                    _refs.put(object, new Integer(_refs.size()));
687:
688:                    return false;
689:                }
690:            }
691:
692:            /**
693:             * Removes a reference.
694:             */
695:            public boolean removeRef(Object obj) throws IOException {
696:                if (_refs != null) {
697:                    _refs.remove(obj);
698:
699:                    return true;
700:                } else
701:                    return false;
702:            }
703:
704:            /**
705:             * Replaces a reference from one object to another.
706:             */
707:            public boolean replaceRef(Object oldRef, Object newRef)
708:                    throws IOException {
709:                Integer value = (Integer) _refs.remove(oldRef);
710:
711:                if (value != null) {
712:                    _refs.put(newRef, value);
713:                    return true;
714:                } else
715:                    return false;
716:            }
717:
718:            /**
719:             * Prints a string to the stream, encoded as UTF-8
720:             *
721:             * @param v the string to print.
722:             */
723:            public void printString(String v) throws IOException {
724:                printString(v, 0, v.length());
725:            }
726:
727:            /**
728:             * Prints a string to the stream, encoded as UTF-8
729:             *
730:             * @param v the string to print.
731:             */
732:            public void printString(String v, int offset, int length)
733:                    throws IOException {
734:                for (int i = 0; i < length; i++) {
735:                    char ch = v.charAt(i + offset);
736:
737:                    if (ch == '<') {
738:                        os.write('&');
739:                        os.write('#');
740:                        os.write('6');
741:                        os.write('0');
742:                        os.write(';');
743:                    } else if (ch == '&') {
744:                        os.write('&');
745:                        os.write('#');
746:                        os.write('3');
747:                        os.write('8');
748:                        os.write(';');
749:                    } else if (ch < 0x80)
750:                        os.write(ch);
751:                    else if (ch < 0x800) {
752:                        os.write(0xc0 + ((ch >> 6) & 0x1f));
753:                        os.write(0x80 + (ch & 0x3f));
754:                    } else {
755:                        os.write(0xe0 + ((ch >> 12) & 0xf));
756:                        os.write(0x80 + ((ch >> 6) & 0x3f));
757:                        os.write(0x80 + (ch & 0x3f));
758:                    }
759:                }
760:            }
761:
762:            /**
763:             * Prints a string to the stream, encoded as UTF-8
764:             *
765:             * @param v the string to print.
766:             */
767:            public void printString(char[] v, int offset, int length)
768:                    throws IOException {
769:                for (int i = 0; i < length; i++) {
770:                    char ch = v[i + offset];
771:
772:                    if (ch < 0x80)
773:                        os.write(ch);
774:                    else if (ch < 0x800) {
775:                        os.write(0xc0 + ((ch >> 6) & 0x1f));
776:                        os.write(0x80 + (ch & 0x3f));
777:                    } else {
778:                        os.write(0xe0 + ((ch >> 12) & 0xf));
779:                        os.write(0x80 + ((ch >> 6) & 0x3f));
780:                        os.write(0x80 + (ch & 0x3f));
781:                    }
782:                }
783:            }
784:
785:            /**
786:             * Prints a date.
787:             *
788:             * @param date the date to print.
789:             */
790:            public void printDate(Calendar calendar) throws IOException {
791:                int year = calendar.get(Calendar.YEAR);
792:
793:                os.write((char) ('0' + (year / 1000 % 10)));
794:                os.write((char) ('0' + (year / 100 % 10)));
795:                os.write((char) ('0' + (year / 10 % 10)));
796:                os.write((char) ('0' + (year % 10)));
797:
798:                int month = calendar.get(Calendar.MONTH) + 1;
799:                os.write((char) ('0' + (month / 10 % 10)));
800:                os.write((char) ('0' + (month % 10)));
801:
802:                int day = calendar.get(Calendar.DAY_OF_MONTH);
803:                os.write((char) ('0' + (day / 10 % 10)));
804:                os.write((char) ('0' + (day % 10)));
805:
806:                os.write('T');
807:
808:                int hour = calendar.get(Calendar.HOUR_OF_DAY);
809:                os.write((char) ('0' + (hour / 10 % 10)));
810:                os.write((char) ('0' + (hour % 10)));
811:
812:                int minute = calendar.get(Calendar.MINUTE);
813:                os.write((char) ('0' + (minute / 10 % 10)));
814:                os.write((char) ('0' + (minute % 10)));
815:
816:                int second = calendar.get(Calendar.SECOND);
817:                os.write((char) ('0' + (second / 10 % 10)));
818:                os.write((char) ('0' + (second % 10)));
819:
820:                int ms = calendar.get(Calendar.MILLISECOND);
821:                os.write('.');
822:                os.write((char) ('0' + (ms / 100 % 10)));
823:                os.write((char) ('0' + (ms / 10 % 10)));
824:                os.write((char) ('0' + (ms % 10)));
825:
826:                os.write('Z');
827:            }
828:
829:            /**
830:             * Prints a char to the stream.
831:             *
832:             * @param v the char to print.
833:             */
834:            protected void print(char v) throws IOException {
835:                os.write(v);
836:            }
837:
838:            /**
839:             * Prints an integer to the stream.
840:             *
841:             * @param v the integer to print.
842:             */
843:            protected void print(int v) throws IOException {
844:                print(String.valueOf(v));
845:            }
846:
847:            /**
848:             * Prints a long to the stream.
849:             *
850:             * @param v the long to print.
851:             */
852:            protected void print(long v) throws IOException {
853:                print(String.valueOf(v));
854:            }
855:
856:            /**
857:             * Prints a double to the stream.
858:             *
859:             * @param v the double to print.
860:             */
861:            protected void print(double v) throws IOException {
862:                print(String.valueOf(v));
863:            }
864:
865:            /**
866:             * Prints a string as ascii to the stream.  Used for tags, etc.
867:             * that are known to the ascii.
868:             *
869:             * @param s the ascii string to print.
870:             */
871:            protected void print(String s) throws IOException {
872:                int len = s.length();
873:                for (int i = 0; i < len; i++) {
874:                    int ch = s.charAt(i);
875:
876:                    os.write(ch);
877:                }
878:            }
879:        }
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