jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/MemoryData.java@f50545b5e2f1

     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  */

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

    28 import java.nio.ByteBuffer;

    29 import java.io.File;

    30 import java.io.IOException;

    31 import java.util.logging.Logger;

    33 /**

    34  * Keeps the Part's partial content data in memory.

    35  *

    36  * @author Kohsuke Kawaguchi

    37  * @author Jitendra Kotamraju

    38  */

    39 final class MemoryData implements Data {

    40     private static final Logger LOGGER = Logger.getLogger(MemoryData.class.getName());

    42     private final byte[] data;

    43     private final int len;

    44     private final MIMEConfig config;

    46     MemoryData(ByteBuffer buf, MIMEConfig config) {

    47         data = buf.array();

    48         len = buf.limit();

    49         this.config = config;

    50     }

    52     // size of the chunk given by the parser

    53     public int size() {

    54         return len;

    55     }

    57     public byte[] read() {

    58         return data;

    59     }

    61     public long writeTo(DataFile file) {

    62         return file.writeTo(data, 0, len);

    63     }

    65     /**

    66      *

    67      * @param dataHead

    68      * @param buf

    69      * @return

    70      */

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

    72         if (!config.isOnlyMemory() && dataHead.inMemory >= config.memoryThreshold) {

    73             try {

    74                 String prefix = config.getTempFilePrefix();

    75                 String suffix = config.getTempFileSuffix();

    76                 File dir = config.getTempDir();

    77                 File tempFile = (dir == null)

    78                         ? File.createTempFile(prefix, suffix)

    79                         : File.createTempFile(prefix, suffix, dir);

    80                 // delete the temp file when VM exits as a last resort for file clean up

    81                 tempFile.deleteOnExit();

    82                 LOGGER.fine("Created temp file = "+tempFile);

    83                 dataHead.dataFile = new DataFile(tempFile);

    84             } catch(IOException ioe) {

    85                 throw new MIMEParsingException(ioe);

    86             }

    88             if (dataHead.head != null) {

    89                 for(Chunk c=dataHead.head; c != null; c=c.next) {

    90                     long pointer = c.data.writeTo(dataHead.dataFile);

    91                     c.data = new FileData(dataHead.dataFile, pointer, len);

    92                 }

    93             }

    94             return new FileData(dataHead.dataFile, buf);

    95         } else {

    96             return new MemoryData(buf, config);

    97         }

    98     }

    99 }

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