1 /*
   2  * Copyright (c) 1997, 2017, 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     @Override
  54     public DataFlavor[] getTransferDataFlavors() { // throws Exception;
  55         DataFlavor flavors[] = new DataFlavor[1];
  56         flavors[0] = new ActivationDataFlavor(
  57                 FastInfosetReflection.getFastInfosetSource_class(),
  58                 "application/fastinfoset", "Fast Infoset");
  59         return flavors;
  60     }
  61 
  62     /**
  63      * Return the Transfer Data of type DataFlavor from InputStream
  64      * @param flavor The DataFlavor.
  65      * @param dataSource DataSource.
  66      * @return The constructed Object.
  67      * @exception IOException in case of an I/O error
  68      */
  69     @Override
  70     public Object getTransferData(DataFlavor flavor, DataSource dataSource)
  71         throws IOException
  72     {
  73         if (flavor.getMimeType().startsWith("application/fastinfoset")) {
  74             try {
  75                 if (flavor.getRepresentationClass().getName().equals(STR_SRC)) {
  76                     return FastInfosetReflection.FastInfosetSource_new(
  77                         dataSource.getInputStream());
  78                 }
  79             }
  80             catch (Exception e) {
  81                 throw new IOException(e.getMessage());
  82             }
  83         }
  84         return null;
  85     }
  86 
  87     @Override
  88     public Object getContent(DataSource dataSource) throws IOException {
  89         try {
  90             return FastInfosetReflection.FastInfosetSource_new(
  91                 dataSource.getInputStream());
  92         }
  93         catch (Exception e) {
  94             throw new IOException(e.getMessage());
  95         }
  96     }
  97 
  98     /**
  99      * Construct an object from a byte stream
 100      * (similar semantically to previous method, we are deciding
 101      *  which one to support)
 102      */
 103     @Override
 104     public void writeTo(Object obj, String mimeType, OutputStream os)
 105         throws IOException
 106     {
 107         if (!mimeType.equals("application/fastinfoset")) {
 108             throw new IOException("Invalid content type \"" + mimeType
 109                 + "\" for FastInfosetDCH");
 110         }
 111 
 112         try {
 113             InputStream is = FastInfosetReflection.FastInfosetSource_getInputStream(
 114                 (Source) obj);
 115 
 116             int n; byte[] buffer = new byte[4096];
 117             while ((n = is.read(buffer)) != -1) {
 118                 os.write(buffer, 0, n);
 119             }
 120         }
 121         catch (Exception ex) {
 122             throw new IOException(
 123                 "Error copying FI source to output stream " + ex.getMessage());
 124         }
 125     }
 126 }