/*
* Copyright 2004, 2005, 2006 Odysseus Software GmbH
*
* 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 de.odysseus.calyxo.base.conf.impl;
import javax.servlet.jsp.el.ExpressionEvaluator;
import javax.servlet.jsp.el.VariableResolver;
import de.odysseus.calyxo.base.ModuleContext;
import de.odysseus.calyxo.base.conf.ConfigException;
import de.odysseus.calyxo.base.conf.MemberConfig;
import de.odysseus.calyxo.base.conf.UseConfig;
/**
* Use configuration implementation.
*
* @author Christoph Beck
*/
public class UseConfigImpl extends FeaturesConfigImpl implements UseConfig {
private Object value;
private MemberConfig member;
/*
* (non-Javadoc)
* @see de.odysseus.calyxo.base.conf.impl.ConfigImpl#_getElementName()
*/
protected String _getElementName() {
return "use";
}
/* (non-Javadoc)
* @see de.odysseus.calyxo.base.conf.impl.ConfigImpl#_addChildren(de.odysseus.calyxo.base.conf.impl.ConfigImpl.Elements)
*/
protected void _addChildren(Elements elements) {
super._addChildren(elements);
elements.add(member);
}
/*
* (non-Javadoc)
* @see de.odysseus.calyxo.base.conf.impl.ConfigImpl#_putAttributes(de.odysseus.calyxo.base.conf.impl.ConfigImpl.Attributes)
*/
protected void _putAttributes(Attributes map) {
super._putAttributes(map);
map.put("value", value);
}
/**
* Answer array <code>{ "value" }</code>.
* @see de.odysseus.calyxo.base.conf.impl.ConfigImpl#_getDynamicAttributes()
*/
protected String[] _getDynamicAttributes() {
return new String[]{ "value" };
}
/*
* (non-Javadoc)
* @see de.odysseus.calyxo.base.conf.impl.ConfigImpl#_resolve(javax.servlet.jsp.el.ExpressionEvaluator, javax.servlet.jsp.el.VariableResolver)
*/
protected void _resolve(ExpressionEvaluator evaluator, VariableResolver variables) throws ConfigException {
if ((value == null) == (member == null)) {
throw new ConfigException("Either value attribute or nested member element required in " + toInlineString());
}
super._resolve(evaluator, variables);
}
/*
* (non-Javadoc)
* @see de.odysseus.calyxo.base.conf.impl.ConfigImpl#_evaluate(de.odysseus.calyxo.base.ModuleContext)
*/
protected void _evaluate(ModuleContext context) throws ConfigException {
super._evaluate(context);
ClassLoader loader = context.getClassLoader();
Object object = member == null ? value : member.get(loader);
if (object == null) {
throw new ConfigException("Cannot use null in " + toInlineString());
}
apply(object, loader);
}
/**
* Get value property
*/
public Object getValue() {
return value;
}
/**
* Set value property
*/
public void setValue(Object value) {
this.value = value;
}
/**
* Get member configuration
*/
public MemberConfig getMemberConfig() {
return member;
}
/**
* Get member configuration
*/
public void setMemberConfig(MemberConfig member) {
this.member = member;
}
}