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  */
  25 
  26 package com.sun.xml.internal.messaging.saaj.soap;
  27 
  28 import java.awt.datatransfer.DataFlavor;
  29 import java.io.IOException;
  30 import java.io.OutputStream;
  31 import java.io.InputStream;
  32 
  33 import javax.activation.*;
  34 import javax.xml.transform.Source;
  35 
  36 import com.sun.xml.internal.messaging.saaj.util.FastInfosetReflection;
  37 
  38 /**
  39  * JAF data handler for Fast Infoset content
  40  *
  41  * @author Santiago Pericas-Geertsen
  42  */
  43 public class FastInfosetDataContentHandler implements DataContentHandler {
  44     public static final String STR_SRC = "com.sun.xml.internal.org.jvnet.fastinfoset.FastInfosetSource";
  45 
  46     public FastInfosetDataContentHandler() {
  47     }
  48 
  49     /**
  50      * return the DataFlavors for this <code>DataContentHandler</code>
  51      * @return The DataFlavors.
  52      */
  53     public DataFlavor[] getTransferDataFlavors() { // throws Exception;
  54         DataFlavor flavors[] = new DataFlavor[1];
  55         flavors[0] = new ActivationDataFlavor(
  56                 FastInfosetReflection.getFastInfosetSource_class(),
  57                 "application/fastinfoset", "Fast Infoset");
  58         return flavors;
  59     }
  60 
  61     /**
  62      * return the Transfer Data of type DataFlavor from InputStream
  63      * @param df The DataFlavor.
  64      * @param ins The InputStream corresponding to the data.
  65      * @return The constructed Object.
  66      */
  67     public Object getTransferData(DataFlavor flavor, DataSource dataSource)
  68         throws IOException
  69     {
  70         if (flavor.getMimeType().startsWith("application/fastinfoset")) {
  71             try {
  72                 if (flavor.getRepresentationClass().getName().equals(STR_SRC)) {
  73                     return FastInfosetReflection.FastInfosetSource_new(
  74                         dataSource.getInputStream());
  75                 }
  76             }
  77             catch (Exception e) {
  78                 throw new IOException(e.getMessage());
  79             }
  80         }
  81         return null;
  82     }
  83 
  84     public Object getContent(DataSource dataSource) throws IOException {
  85         try {
  86             return FastInfosetReflection.FastInfosetSource_new(
  87                 dataSource.getInputStream());
  88         }
  89         catch (Exception e) {
  90             throw new IOException(e.getMessage());
  91         }
  92     }
  93 
  94     /**
  95      * construct an object from a byte stream
  96      * (similar semantically to previous method, we are deciding
  97      *  which one to support)
  98      */
  99     public void writeTo(Object obj, String mimeType, OutputStream os)
 100         throws IOException
 101     {
 102         if (!mimeType.equals("application/fastinfoset")) {
 103             throw new IOException("Invalid content type \"" + mimeType
 104                 + "\" for FastInfosetDCH");
 105         }
 106 
 107         try {
 108             InputStream is = FastInfosetReflection.FastInfosetSource_getInputStream(
 109                 (Source) obj);
 110 
 111             int n; byte[] buffer = new byte[4096];
 112             while ((n = is.read(buffer)) != -1) {
 113                 os.write(buffer, 0, n);
 114             }
 115         }
 116         catch (Exception ex) {
 117             throw new IOException(
 118                 "Error copying FI source to output stream " + ex.getMessage());
 119         }
 120     }
 121 }