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

     1 /*

     2  * Copyright (c) 1997, 2013, 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.Level;

    32 import java.util.logging.Logger;

    34 /**

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

    36  *

    37  * @author Kohsuke Kawaguchi

    38  * @author Jitendra Kotamraju

    39  */

    40 final class MemoryData implements Data {

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

    43     private final byte[] data;

    44     private final int len;

    45     private final MIMEConfig config;

    47     MemoryData(ByteBuffer buf, MIMEConfig config) {

    48         data = buf.array();

    49         len = buf.limit();

    50         this.config = config;

    51     }

    53     // size of the chunk given by the parser

    54     @Override

    55     public int size() {

    56         return len;

    57     }

    59     @Override

    60     public byte[] read() {

    61         return data;

    62     }

    64     @Override

    65     public long writeTo(DataFile file) {

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

    67     }

    69     /**

    70      *

    71      * @param dataHead

    72      * @param buf

    73      * @return

    74      */

    75     @Override

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

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

    78             try {

    79                 String prefix = config.getTempFilePrefix();

    80                 String suffix = config.getTempFileSuffix();

    81                 File tempFile = TempFiles.createTempFile(prefix, suffix, config.getTempDir());

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

    83                 tempFile.deleteOnExit();

    84                 if (LOGGER.isLoggable(Level.FINE)) {

    85                     LOGGER.log(Level.FINE, "Created temp file = {0}", tempFile);

    86                 }

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

    88                 tempFile.deleteOnExit();

    89                 if (LOGGER.isLoggable(Level.FINE)) {LOGGER.log(Level.FINE, "Created temp file = {0}", tempFile);}

    90                 dataHead.dataFile = new DataFile(tempFile);

    91             } catch (IOException ioe) {

    92                 throw new MIMEParsingException(ioe);

    93             }

    95             if (dataHead.head != null) {

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

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

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

    99                 }

   100             }

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

   102         } else {

   103             return new MemoryData(buf, config);

   104         }

   105     }

   107 }

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