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/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.ws.core.soap;
// $Id: SOAPElementWriter.java 3959 2007-07-20 14:44:19Z heiko.braun@jboss.com $
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import javax.xml.soap.SOAPEnvelope;
import org.jboss.ws.WSException;
import org.jboss.wsf.common.DOMUtils;
import org.jboss.wsf.common.DOMWriter;
/**
* Writes a SAAJ elements to an output stream.
*
* @author Heiko Braun <heiko.braun@jboss.com>
* @author Thomas.Diesler@jboss.com
* @since 4-Aug-2006
*/
public class SOAPElementWriter
{
// Print writer
private PrintWriter out;
// True, if the XML declaration should be written
private boolean writeXMLDeclaration;
// Explicit character set encoding
private String charsetName;
public SOAPElementWriter(Writer w)
{
this.out = new PrintWriter(w);
}
public SOAPElementWriter(OutputStream stream)
{
try
{
this.out = new PrintWriter(new OutputStreamWriter(stream, "UTF-8"));
}
catch (UnsupportedEncodingException e)
{
// ignore, UTF-8 should be available
}
}
public SOAPElementWriter(OutputStream stream, String charsetName)
{
try
{
this.out = new PrintWriter(new OutputStreamWriter(stream, charsetName));
this.charsetName = charsetName;
}
catch (UnsupportedEncodingException e)
{
throw new IllegalArgumentException("Unsupported encoding: " + charsetName);
}
}
/**
* Set wheter the XML declaration should be written.
* The default is false.
*/
public SOAPElementWriter setWriteXMLDeclaration(boolean writeXMLDeclaration)
{
this.writeXMLDeclaration = writeXMLDeclaration;
return this;
}
/**
* Print a node with explicit prettyprinting.
* The defaults for all other DOMWriter properties apply.
*/
public static String writeElement(SOAPElementImpl element, boolean pretty)
{
if (element == null)
return null;
StringWriter strw = new StringWriter();
new SOAPElementWriter(strw).writeElement(element);
String xmlStr = strw.toString();
if (pretty)
{
// This is expensive. Make sure it only happens for debugging
try
{
// TODO: this unescapes sepcial chars, which might be quiet confusing
// but they are actually send escaped.
xmlStr = DOMWriter.printNode(DOMUtils.parse(xmlStr), true);
}
catch (IOException ex)
{
throw new WSException ("Cannot parse xml: " + xmlStr, ex);
}
}
return xmlStr;
}
public void writeElement(SOAPElementImpl element)
{
writeElementInternal(element);
}
private void writeElementInternal(SOAPElementImpl element)
{
if (element != null)
{
try
{
if (writeXMLDeclaration == true && element instanceof SOAPEnvelope)
{
out.print("<?xml version='1.0'");
if (charsetName != null)
out.print(" encoding='" + charsetName + "'");
out.println("?>");
writeXMLDeclaration = false;
}
element.writeElement(out);
out.flush();
}
catch (IOException ex)
{
throw new WSException("Cannot write SOAP element", ex);
}
}
}
}
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