/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.axis.deployment.wsdd;
import java.io.IOException;
import java.util.Vector;
import javax.xml.namespace.QName;
import org.apache.axis.Chain;
import org.apache.axis.ConfigurationException;
import org.apache.axis.EngineConfiguration;
import org.apache.axis.Handler;
import org.apache.axis.encoding.SerializationContext;
import org.w3c.dom.Element;
import org.xml.sax.helpers.AttributesImpl;
/**
* WSDD chain element
*
*/
public class WSDDChain
extends WSDDHandler
{
private Vector handlers = new Vector();
/**
* Default constructor
*/
public WSDDChain()
{
}
/**
*
* @param e (Element) XXX
* @throws WSDDException XXX
*/
public WSDDChain(Element e)
throws WSDDException
{
super(e);
// If we're simply a reference to an existing chain, return.
// !!! should check to make sure it's a valid chain?
if (type != null)
return;
Element [] elements = getChildElements(e, ELEM_WSDD_HANDLER);
if (elements.length != 0) {
for (int i = 0; i < elements.length; i++) {
WSDDHandler handler = new WSDDHandler(elements[i]);
addHandler(handler);
}
}
elements = getChildElements(e, ELEM_WSDD_CHAIN);
if (elements.length != 0) {
for (int i = 0; i < elements.length; i++) {
WSDDChain chain = new WSDDChain(elements[i]);
addHandler(chain);
}
}
}
protected QName getElementName()
{
return WSDDConstants.QNAME_CHAIN;
}
/**
* Add a Handler to the chain (at the end)
*/
public void addHandler(WSDDHandler handler)
{
handlers.add(handler);
}
/**
* Obtain our handler list
*
* @return a Vector containing our Handlers
*/
public Vector getHandlers()
{
return handlers;
}
/**
* Remove a Handler from the chain
*/
public void removeHandler(WSDDHandler victim)
{
handlers.remove(victim);
}
/**
* Creates a new instance of this Chain
* @param registry XXX
* @return XXX
* @throws ConfigurationException XXX
*/
public Handler makeNewInstance(EngineConfiguration registry)
throws ConfigurationException
{
Chain c = new org.apache.axis.SimpleChain();
for (int n = 0; n < handlers.size(); n++) {
WSDDHandler handler = (WSDDHandler)handlers.get(n);
Handler h = handler.getInstance(registry);
if ( h != null )
c.addHandler(h);
else
throw new ConfigurationException("Can't find handler name:'" +
handler.getQName() + "' type:'"+
handler.getType() +
"' in the registry");
}
return c;
}
/**
* Write this element out to a SerializationContext
*/
public void writeToContext(SerializationContext context)
throws IOException
{
AttributesImpl attrs = new AttributesImpl();
QName name = getQName();
if (name != null) {
attrs.addAttribute("", ATTR_NAME, ATTR_NAME,
"CDATA", context.qName2String(name));
}
if (getType() != null) {
attrs.addAttribute("", ATTR_TYPE, ATTR_TYPE,
"CDATA", context.qName2String(getType()));
}
context.startElement(getElementName(), attrs);
for (int n = 0; n < handlers.size(); n++) {
WSDDHandler handler = (WSDDHandler)handlers.get(n);
handler.writeToContext(context);
}
context.endElement();
}
public void deployToRegistry(WSDDDeployment registry)
{
if (getQName() != null)
registry.addHandler(this);
for (int n = 0; n < handlers.size(); n++) {
WSDDHandler handler = (WSDDHandler)handlers.get(n);
if (handler.getQName() != null)
handler.deployToRegistry(registry);
}
}
}