/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file 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.aop.microcontainer.lifecycle;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;
import org.jboss.aop.Advisor;
import org.jboss.aop.pointcut.TypeMatcher;
import org.jboss.aop.pointcut.Util;
import org.jboss.aop.pointcut.ast.ASTStart;
import org.jboss.aop.pointcut.ast.ClassExpression;
import org.jboss.aop.pointcut.ast.TypeExpressionParser;
/**
* A binding for callbacks for when a MC bean reaches a certain state
*
* @author <a href="kabir.khan@jboss.com">Kabir Khan</a>
* @version $Revision: 1.1 $
*/
public class LifecycleCallbackBinding
{
/**
* The name of this binding
*/
protected String name;
/**
* The class to match
*/
protected ClassExpression classes;
/**
* A type expression picking out the classes to apply this to
*/
protected ASTStart ast;
/**
* A list of beans
*/
List<LifecycleCallbackDefinition> lifecycleCallbackDefinitions = new ArrayList<LifecycleCallbackDefinition>();
/**
* This will be an instance of org.jboss.dependency.spi.ControllerState from the MC project
*/
Object controllerState;
public LifecycleCallbackBinding(String name, String classString, String typeExpression, Object controllerState) throws Exception
{
this.name = name;
if (classString == null && typeExpression == null)
{
throw new RuntimeException("Need either classString or typeExpression");
}
if (classString != null && typeExpression != null)
{
throw new RuntimeException("Should not use both classString and typeExpression");
}
if (classString != null)
{
this.classes = new ClassExpression(classString);
}
else if (typeExpression != null)
{
this.ast = new TypeExpressionParser(new StringReader(typeExpression)).Start();
}
this.controllerState = controllerState;
}
public String getName()
{
return name;
}
public void addLifecycleCallback(String bean, String installMethod, String uninstallMethod)
{
lifecycleCallbackDefinitions.add(new LifecycleCallbackDefinition(bean, installMethod, uninstallMethod));
}
public List<LifecycleCallbackDefinition> getLifecycleCallbacks()
{
return lifecycleCallbackDefinitions;
}
public boolean equals(Object obj)
{
if (obj == this) return true;
if (!(obj instanceof LifecycleCallbackBinding)) return false;
return ((LifecycleCallbackBinding) obj).getName().equals(name);
}
public int hashCode()
{
return name.hashCode();
}
public boolean matches(Advisor advisor, Class clazz)
{
if (classes != null)
{
return Util.matchesClassExpr(classes, clazz, advisor);
}
else
{
TypeMatcher matcher = new TypeMatcher(advisor, clazz);
return ((Boolean) ast.jjtAccept(matcher, null)).booleanValue();
}
}
public Object getControllerState()
{
return controllerState;
}
}