domouthandler.java

来自「Xfire文件 用于开发web service 的一个开源工具 很好用的」· Java 代码 · 共 62 行

package org.codehaus.xfire.util.dom;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.codehaus.xfire.MessageContext;
import org.codehaus.xfire.XFireRuntimeException;
import org.codehaus.xfire.exchange.OutMessage;
import org.codehaus.xfire.handler.AbstractHandler;
import org.codehaus.xfire.handler.Phase;
import org.codehaus.xfire.soap.handler.SoapSerializerHandler;
import org.codehaus.xfire.soap.handler.FaultSoapSerializerHandler;
import org.codehaus.xfire.util.stax.W3CDOMStreamWriter;
import org.w3c.dom.Document;

/**
 * Creates a org.w3c.dom.Document for the outgoing message and sets the
 * outgoing message's serializer to a DOMSerializer.
 * <p>
 * To access the DOM simply do:
 * <pre>
 * OutMessage msg = context.getOutMessage();
 * Document doc = (Document) msg.getProperty(DOMOutHandler.DOM_MESSAGE);
 * </pre>
 */
public class DOMOutHandler
    extends AbstractHandler
{
    public static final String DOM_MESSAGE = "dom.message";
    private DocumentBuilder builder;
    
    public DOMOutHandler()
    {
        super();
        setPhase(Phase.POST_INVOKE);
        after(SoapSerializerHandler.class.getName());
        before(FaultSoapSerializerHandler.class.getName());
        
        try
        {
            builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        }
        catch (ParserConfigurationException e)
        {
            throw new XFireRuntimeException("Couldn't create DocumentBuilder.", e);
        }
    }

    public void invoke(MessageContext context)
        throws Exception
    {
        OutMessage message = (OutMessage) context.getCurrentMessage();
        W3CDOMStreamWriter writer = new W3CDOMStreamWriter(builder);
        message.getSerializer().writeMessage(message, writer, context);
       
        Document doc = writer.getDocument();
        message.setProperty(DOM_MESSAGE, doc);
        message.setSerializer(new DOMSerializer());
    }
}