Mercurial > jdk8-mips64-public > jaxws / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/DataFile.java	Tue Mar 06 16:09:35 2012 -0800
     1.3 @@ -0,0 +1,84 @@
     1.4 +/*
     1.5 + * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.  Oracle designates this
    1.11 + * particular file as subject to the "Classpath" exception as provided
    1.12 + * by Oracle in the LICENSE file that accompanied this code.
    1.13 + *
    1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.16 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.17 + * version 2 for more details (a copy is included in the LICENSE file that
    1.18 + * accompanied this code).
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License version
    1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.23 + *
    1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.25 + * or visit www.oracle.com if you need additional information or have any
    1.26 + * questions.
    1.27 + */
    1.28 +
    1.29 +package com.sun.xml.internal.org.jvnet.mimepull;
    1.30 +
    1.31 +import java.io.*;
    1.32 +
    1.33 +/**
    1.34 + * Use {@link RandomAccessFile} for concurrent access of read
    1.35 + * and write partial part's content.
    1.36 + *
    1.37 + * @author Kohsuke Kawaguchi
    1.38 + * @author Jitendra Kotamraju
    1.39 + */
    1.40 +final class DataFile {
    1.41 +    private WeakDataFile weak;
    1.42 +    private long writePointer;
    1.43 +
    1.44 +    DataFile(File file) {
    1.45 +        writePointer=0;
    1.46 +        weak = new WeakDataFile(this, file);
    1.47 +    }
    1.48 +
    1.49 +    /**
    1.50 +     *
    1.51 +     */
    1.52 +    void close() {
    1.53 +        weak.close();
    1.54 +    }
    1.55 +
    1.56 +    /**
    1.57 +     * Read data from the given file pointer position.
    1.58 +     *
    1.59 +     * @param pointer read position
    1.60 +     * @param buf that needs to be filled
    1.61 +     * @param offset the start offset of the data.
    1.62 +     * @param length of data that needs to be read
    1.63 +     */
    1.64 +    synchronized void read(long pointer, byte[] buf, int offset, int length ) {
    1.65 +        weak.read(pointer, buf, offset, length);
    1.66 +    }
    1.67 +
    1.68 +    void renameTo(File f) {
    1.69 +        weak.renameTo(f);
    1.70 +    }
    1.71 +
    1.72 +    /**
    1.73 +     * Write data to the file
    1.74 +     *
    1.75 +     * @param data that needs to written to a file
    1.76 +     * @param offset start offset in the data
    1.77 +     * @param length no bytes to write
    1.78 +     * @return file pointer before the write operation(or at which the
    1.79 +     *         data is written)
    1.80 +     */
    1.81 +    synchronized long writeTo(byte[] data, int offset, int length) {
    1.82 +        long temp = writePointer;
    1.83 +        writePointer = weak.writeTo(writePointer, data, offset, length);
    1.84 +        return temp;
    1.85 +    }
    1.86 +
    1.87 +}