| /* |
| * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.xml.internal.ws.encoding; |
| |
| import com.sun.xml.internal.ws.util.xml.XmlUtil; |
| |
| import javax.activation.ActivationDataFlavor; |
| import javax.activation.DataContentHandler; |
| import javax.activation.DataSource; |
| import javax.xml.transform.OutputKeys; |
| import javax.xml.transform.Source; |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.stream.StreamResult; |
| import javax.xml.transform.stream.StreamSource; |
| import java.awt.datatransfer.DataFlavor; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.util.Arrays; |
| |
| /** |
| * JAF data handler for XML content |
| * |
| * @author Jitendra Kotamraju |
| */ |
| public class XmlDataContentHandler implements DataContentHandler { |
| |
| private final DataFlavor[] flavors; |
| |
| public XmlDataContentHandler() throws ClassNotFoundException { |
| flavors = new DataFlavor[3]; |
| flavors[0] = new ActivationDataFlavor(StreamSource.class, "text/xml", "XML"); |
| flavors[1] = new ActivationDataFlavor(StreamSource.class, "application/xml", "XML"); |
| flavors[2] = new ActivationDataFlavor(String.class, "text/xml", "XML String"); |
| } |
| |
| public DataFlavor[] getTransferDataFlavors() { |
| return Arrays.copyOf(flavors, flavors.length); |
| } |
| |
| public Object getTransferData(DataFlavor df, DataSource ds) |
| throws IOException { |
| |
| for (DataFlavor aFlavor : flavors) { |
| if (aFlavor.equals(df)) { |
| return getContent(ds); |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Create an object from the input stream |
| */ |
| public Object getContent(DataSource ds) throws IOException { |
| String ctStr = ds.getContentType(); |
| String charset = null; |
| if (ctStr != null) { |
| ContentType ct = new ContentType(ctStr); |
| if (!isXml(ct)) { |
| throw new IOException( |
| "Cannot convert DataSource with content type \"" |
| + ctStr + "\" to object in XmlDataContentHandler"); |
| } |
| charset = ct.getParameter("charset"); |
| } |
| return (charset != null) |
| ? new StreamSource(new InputStreamReader(ds.getInputStream()), charset) |
| : new StreamSource(ds.getInputStream()); |
| } |
| |
| /** |
| * Convert the object to a byte stream |
| */ |
| public void writeTo(Object obj, String mimeType, OutputStream os) |
| throws IOException { |
| |
| if (!(obj instanceof DataSource || obj instanceof Source || obj instanceof String)) { |
| throw new IOException("Invalid Object type = "+obj.getClass()+ |
| ". XmlDataContentHandler can only convert DataSource|Source|String to XML."); |
| } |
| |
| ContentType ct = new ContentType(mimeType); |
| if (!isXml(ct)) { |
| throw new IOException( |
| "Invalid content type \"" + mimeType + "\" for XmlDataContentHandler"); |
| } |
| |
| String charset = ct.getParameter("charset"); |
| if (obj instanceof String) { |
| String s = (String) obj; |
| if (charset == null) { |
| charset = "utf-8"; |
| } |
| OutputStreamWriter osw = new OutputStreamWriter(os, charset); |
| osw.write(s, 0, s.length()); |
| osw.flush(); |
| return; |
| } |
| |
| Source source = (obj instanceof DataSource) |
| ? (Source)getContent((DataSource)obj) : (Source)obj; |
| try { |
| Transformer transformer = XmlUtil.newTransformer(); |
| if (charset != null) { |
| transformer.setOutputProperty(OutputKeys.ENCODING, charset); |
| } |
| StreamResult result = new StreamResult(os); |
| transformer.transform(source, result); |
| } catch (Exception ex) { |
| throw new IOException( |
| "Unable to run the JAXP transformer in XmlDataContentHandler " |
| + ex.getMessage()); |
| } |
| } |
| |
| private boolean isXml(ContentType ct) { |
| final String primaryType = ct.getPrimaryType(); |
| return ct.getSubType().equalsIgnoreCase("xml") && |
| (primaryType.equalsIgnoreCase("text") || primaryType.equalsIgnoreCase("application")); |
| } |
| |
| } |