src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/soap/GifDataContentHandler.java

Thu, 31 Aug 2017 15:18:52 +0800

author
aoqi
date
Thu, 31 Aug 2017 15:18:52 +0800
changeset 637
9c07ef4934dd
parent 368
0989ad8c0860
parent 0
373ffda63c9a
permissions
-rw-r--r--

merge

     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.messaging.saaj.soap;
    28 import java.awt.datatransfer.DataFlavor;
    29 import java.io.*;
    30 import java.awt.*;
    32 import javax.activation.*;
    34 /**
    35  * DataContentHandler for image/gif.
    36  *
    37  * @author Ana Lindstrom-Tamer
    38  */
    39 public class GifDataContentHandler extends Component implements DataContentHandler {
    40     private static ActivationDataFlavor myDF =
    41         new ActivationDataFlavor(
    42             java.awt.Image.class,
    43             "image/gif",
    44             "GIF Image");
    46     protected ActivationDataFlavor getDF() {
    47         return myDF;
    48     }
    50     /**
    51      * Return the DataFlavors for this <code>DataContentHandler</code>.
    52      *
    53      * @return The DataFlavors
    54      */
    55     public DataFlavor[] getTransferDataFlavors() { // throws Exception;
    56         return new DataFlavor[] { getDF()};
    57     }
    59     /**
    60      * Return the Transfer Data of type DataFlavor from InputStream.
    61      *
    62      * @param df The DataFlavor
    63      * @param ins The InputStream corresponding to the data
    64      * @return String object
    65      */
    66     public Object getTransferData(DataFlavor df, DataSource ds)
    67         throws IOException {
    68         // use myDF.equals to be sure to get ActivationDataFlavor.equals,
    69         // which properly ignores Content-Type parameters in comparison
    70         if (getDF().equals(df))
    71             return getContent(ds);
    72         else
    73             return null;
    74     }
    76     public Object getContent(DataSource ds) throws IOException {
    77         InputStream is = ds.getInputStream();
    78         int pos = 0;
    79         int count;
    80         byte buf[] = new byte[1024];
    82         while ((count = is.read(buf, pos, buf.length - pos)) != -1) {
    83             pos += count;
    84             if (pos >= buf.length) {
    85                 int size = buf.length;
    86                 if (size < 256*1024)
    87                     size += size;
    88                 else
    89                     size += 256*1024;
    90                 byte tbuf[] = new byte[size];
    91                 System.arraycopy(buf, 0, tbuf, 0, pos);
    92                 buf = tbuf;
    93             }
    94         }
    95         Toolkit tk = Toolkit.getDefaultToolkit();
    96         return tk.createImage(buf, 0, pos);
    97     }
    99     /**
   100      * Write the object to the output stream, using the specified MIME type.
   101      */
   102     public void writeTo(Object obj, String type, OutputStream os)
   103                         throws IOException {
   104         if (obj != null && !(obj instanceof Image))
   105             throw new IOException("\"" + getDF().getMimeType() +
   106                 "\" DataContentHandler requires Image object, " +
   107                 "was given object of type " + obj.getClass().toString());
   109         throw new IOException(getDF().getMimeType() + " encoding not supported");
   110     }
   113 }

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