jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/FileData.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 1997, 2012, 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  */

    26 package com.sun.xml.internal.org.jvnet.mimepull;

    28 import java.nio.ByteBuffer;

    30 /**

    31  * Keeps the Part's partial content data in a file.

    32  *

    33  * @author Kohsuke Kawaguchi

    34  * @author Jitendra Kotamraju

    35  */

    36 final class FileData implements Data {

    37     private final DataFile file;

    38     private final long pointer;         // read position

    39     private final int length;

    41     FileData(DataFile file, ByteBuffer buf) {

    42         this(file, file.writeTo(buf.array(), 0, buf.limit()), buf.limit());

    43     }

    45     FileData(DataFile file, long pointer, int length) {

    46         this.file = file;

    47         this.pointer = pointer;

    48         this.length = length;

    49     }

    51     @Override

    52     public byte[] read() {

    53         byte[] buf = new byte[length];

    54         file.read(pointer, buf, 0, length);

    55         return buf;

    56     }

    58     /*

    59      * This shouldn't be called

    60      */

    61     @Override

    62     public long writeTo(DataFile file) {

    63         throw new IllegalStateException();

    64     }

    66     @Override

    67     public int size() {

    68         return length;

    69     }

    71     /*

    72      * Always create FileData

    73      */

    74     @Override

    75     public Data createNext(DataHead dataHead, ByteBuffer buf) {

    76         return new FileData(file, buf);

    77     }

    78 }

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