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 32 import javax.activation.*; 33 import javax.xml.transform.Source; 34 import javax.xml.transform.Transformer; 35 import javax.xml.transform.stream.StreamResult; 36 import javax.xml.transform.stream.StreamSource; 37 38 import com.sun.xml.internal.messaging.saaj.util.transform.EfficientStreamingTransformer; 39 40 /** 41 * JAF data handler for XML content 42 * 43 * @author Anil Vijendran 44 */ 45 public class XmlDataContentHandler implements DataContentHandler { 46 public static final String STR_SRC = "javax.xml.transform.stream.StreamSource"; 47 private static Class<?> streamSourceClass = null; 48 49 public XmlDataContentHandler() throws ClassNotFoundException { 50 if (streamSourceClass == null) { 51 streamSourceClass = Class.forName(STR_SRC); 52 } 53 } 54 55 /** 56 * return the DataFlavors for this <code>DataContentHandler</code> 57 * @return The DataFlavors. 58 */ 59 public DataFlavor[] getTransferDataFlavors() { // throws Exception; 60 DataFlavor flavors[] = new DataFlavor[2]; 61 62 flavors[0] = 63 new ActivationDataFlavor(streamSourceClass, "text/xml", "XML"); 64 flavors[1] = 65 new ActivationDataFlavor(streamSourceClass, "application/xml", "XML"); 66 67 return flavors; 68 } 69 70 /** 71 * return the Transfer Data of type DataFlavor from InputStream 72 * @param df The DataFlavor. 73 * @param ins The InputStream corresponding to the data. 74 * @return The constructed Object. 75 */ 76 public Object getTransferData(DataFlavor flavor, DataSource dataSource) 77 throws IOException { 78 if (flavor.getMimeType().startsWith("text/xml") || 79 flavor.getMimeType().startsWith("application/xml")) { 80 if (flavor.getRepresentationClass().getName().equals(STR_SRC)) { 81 return new StreamSource(dataSource.getInputStream()); 82 } 83 } 84 return null; 85 } 86 87 /** 88 * 89 */ 90 public Object getContent(DataSource dataSource) throws IOException { 91 return new StreamSource(dataSource.getInputStream()); 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 if (!mimeType.startsWith("text/xml") && !mimeType.startsWith("application/xml")) 102 throw new IOException( 103 "Invalid content type \"" + mimeType + "\" for XmlDCH"); 104 105 106 try { 107 Transformer transformer = EfficientStreamingTransformer.newTransformer(); 108 StreamResult result = new StreamResult(os); 109 if (obj instanceof DataSource) { 110 // Streaming transform applies only to javax.xml.transform.StreamSource 111 transformer.transform((Source) getContent((DataSource)obj), result); 112 } else { 113 Source src=null; 114 if (obj instanceof String) { 115 src= new StreamSource(new java.io.StringReader((String) obj)); 116 } else { 117 src=(Source) obj; 118 } 119 transformer.transform(src, result); 120 } 121 } catch (Exception ex) { 122 throw new IOException( 123 "Unable to run the JAXP transformer on a stream " 124 + ex.getMessage()); 125 } 126 } 127 }