/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.cocoon.portal.impl;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.parameters.Parameters;
import org.apache.avalon.framework.service.ServiceException;
import org.apache.avalon.framework.service.ServiceSelector;
import org.apache.cocoon.portal.PortalManagerAspect;
import org.apache.cocoon.portal.coplet.adapter.CopletAdapter;
/**
* This chain holds all configured aspects for a portal manager.
* @since 2.1.8
* @version SVN $Id: PortalManagerAspectChain.java 433543 2006-08-22 06:22:54Z crossley $
*/
public final class PortalManagerAspectChain {
protected List aspects = new ArrayList(3);
protected List configs = new ArrayList(3);
public void configure(ServiceSelector aspectSelector,
ServiceSelector adapterSelector,
Configuration conf,
PortalManagerAspect endAspect,
Parameters endAspectParameters)
throws ConfigurationException {
if ( conf != null ) {
Configuration[] aspects = conf.getChildren("aspect");
for(int i=0; i < aspects.length; i++) {
final Configuration current = aspects[i];
final String role = current.getAttribute("type", null);
PortalManagerAspect pAspect;
if ( role != null ) {
if ( aspectSelector == null ) {
throw new ConfigurationException("No selector for aspects defined.");
}
try {
pAspect = (PortalManagerAspect) aspectSelector.select(role);
} catch (ServiceException se) {
throw new ConfigurationException("Unable to lookup aspect " + role, current, se);
}
} else {
final String adapterName = current.getAttribute("adapter", null);
if ( adapterName == null ) {
throw new ConfigurationException("Aspect configuration requires either a type or an adapter attribute.", current);
}
try {
pAspect = (PortalManagerAspect)adapterSelector.select(adapterName);
} catch (ServiceException se) {
throw new ConfigurationException("Unable to lookup coplet adapter " + adapterName, current, se);
}
}
this.aspects.add(pAspect);
Parameters aspectConfiguration = Parameters.fromConfiguration(current);
this.configs.add(aspectConfiguration);
}
}
this.aspects.add(endAspect);
this.configs.add(endAspectParameters);
}
public Iterator getIterator() {
return this.aspects.iterator();
}
public Iterator getConfigIterator() {
return this.configs.iterator();
}
public void dispose(ServiceSelector aspectSelector, ServiceSelector adapterSelector) {
Iterator i = this.aspects.iterator();
while (i.hasNext()) {
final Object component = i.next();
if ( component instanceof CopletAdapter ) {
adapterSelector.release(component);
} else {
aspectSelector.release(component);
}
}
this.aspects.clear();
this.configs.clear();
}
/**
* Adds an aspect at the front. This method is only used by the deprecated PortletPortalManager.
* @deprecated This method will be removed in 2.2.
* @param firstAspect
* @param firstAspectParameters
*/
public void addAsFirst(PortalManagerAspect firstAspect, Parameters firstAspectParameters) {
this.aspects.add(0, firstAspect);
this.configs.add(0, firstAspectParameters);
}
}