com.sun.xml.ws.encoding.XmlDataContentHandler Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of webservices-rt Show documentation
Show all versions of webservices-rt Show documentation
This module contains the Metro runtime code.
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2017 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://oss.oracle.com/licenses/CDDL+GPL-1.1
* or LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.xml.ws.encoding;
import com.sun.xml.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"));
}
}