Mercurial > jdk8-mips64-public > jaxws / file comparison
comparison: src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/DataFile.java
src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/DataFile.java
- changeset 286
- f50545b5e2f1
- child 368
- 0989ad8c0860
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| 284:88b85470e72c | 286:f50545b5e2f1 |
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| 1 /* | |
| 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. Oracle designates this | |
| 8 * particular file as subject to the "Classpath" exception as provided | |
| 9 * by Oracle in the LICENSE file that accompanied this code. | |
| 10 * | |
| 11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 * accompanied this code). | |
| 16 * | |
| 17 * You should have received a copy of the GNU General Public License version | |
| 18 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 * | |
| 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 * or visit www.oracle.com if you need additional information or have any | |
| 23 * questions. | |
| 24 */ | |
| 25 | |
| 26 package com.sun.xml.internal.org.jvnet.mimepull; | |
| 27 | |
| 28 import java.io.*; | |
| 29 | |
| 30 /** | |
| 31 * Use {@link RandomAccessFile} for concurrent access of read | |
| 32 * and write partial part's content. | |
| 33 * | |
| 34 * @author Kohsuke Kawaguchi | |
| 35 * @author Jitendra Kotamraju | |
| 36 */ | |
| 37 final class DataFile { | |
| 38 private WeakDataFile weak; | |
| 39 private long writePointer; | |
| 40 | |
| 41 DataFile(File file) { | |
| 42 writePointer=0; | |
| 43 weak = new WeakDataFile(this, file); | |
| 44 } | |
| 45 | |
| 46 /** | |
| 47 * | |
| 48 */ | |
| 49 void close() { | |
| 50 weak.close(); | |
| 51 } | |
| 52 | |
| 53 /** | |
| 54 * Read data from the given file pointer position. | |
| 55 * | |
| 56 * @param pointer read position | |
| 57 * @param buf that needs to be filled | |
| 58 * @param offset the start offset of the data. | |
| 59 * @param length of data that needs to be read | |
| 60 */ | |
| 61 synchronized void read(long pointer, byte[] buf, int offset, int length ) { | |
| 62 weak.read(pointer, buf, offset, length); | |
| 63 } | |
| 64 | |
| 65 void renameTo(File f) { | |
| 66 weak.renameTo(f); | |
| 67 } | |
| 68 | |
| 69 /** | |
| 70 * Write data to the file | |
| 71 * | |
| 72 * @param data that needs to written to a file | |
| 73 * @param offset start offset in the data | |
| 74 * @param length no bytes to write | |
| 75 * @return file pointer before the write operation(or at which the | |
| 76 * data is written) | |
| 77 */ | |
| 78 synchronized long writeTo(byte[] data, int offset, int length) { | |
| 79 long temp = writePointer; | |
| 80 writePointer = weak.writeTo(writePointer, data, offset, length); | |
| 81 return temp; | |
| 82 } | |
| 83 | |
| 84 } |
