/*
* 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.aspects.dbc.condition;
import java.util.ArrayList;
import java.util.HashMap;
import org.jboss.aop.annotation.AnnotationElement;
import org.jboss.aspects.dbc.DesignByContractAspect;
import org.jboss.aspects.dbc.Invariant;
import org.jboss.aspects.dbc.StaticInvariant;
/**
*
* @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
* @version $Revision: 57186 $
*/
public class ConditionManager
{
public static HashMap preConditions = new HashMap();
public static HashMap postConditions = new HashMap();
public static HashMap invariants = new HashMap();
public static synchronized InvariantCondition[] getInvariants(Class clazz)
{
InvariantCondition[] inv = (InvariantCondition[])invariants.get(clazz);
if (inv != null)
{
return inv;
}
initialise(clazz);
return (InvariantCondition[])invariants.get(clazz);
}
protected static void initialise(Class clazz)
{
ArrayList invConds = new ArrayList();
if (invariants.get(clazz) != null)
{
if (DesignByContractAspect.verbose)System.out.println("[dbc] Already have invariants for class: " + clazz);
}
if (DesignByContractAspect.verbose)System.out.println("[dbc] ===== Initialising invariants for class: " + clazz);
//We need the @Invariant for this class and the super classes
Class curClazz = clazz;
while (curClazz != null)
{
addInvariantConditions(invConds, curClazz);
Class[] interfaces = curClazz.getInterfaces();
for (int i = 0; i < interfaces.length ; i++)
{
addInvariantConditions(invConds, interfaces[i]);
}
curClazz = curClazz.getSuperclass();
}
InvariantCondition[] inv = (InvariantCondition[])invConds.toArray(new InvariantCondition[invConds.size()]);
invariants.put(clazz, inv);
}
private static void addInvariantConditions(ArrayList conditions, Class clazz)
{
Invariant inv = (Invariant)AnnotationElement.getAnyAnnotation(clazz, Invariant.class);
if (inv != null)
{
if (DesignByContractAspect.verbose) System.out.println("[dbc] Found non-static invariants in class: " + clazz);
String[] exprs = inv.value();
if (exprs != null)
{
for (int i = 0 ; i < exprs.length ; i++)
{
conditions.add(new InvariantCondition(clazz, exprs[i], false));
}
}
}
StaticInvariant statinv = (StaticInvariant)AnnotationElement.getAnyAnnotation(clazz, StaticInvariant.class);
if (statinv != null)
{
if (DesignByContractAspect.verbose) System.out.println("[dbc] Found static invariants in class: " + clazz);
String[] exprs = statinv.value();
if (exprs != null)
{
for (int i = 0 ; i < exprs.length ; i++)
{
conditions.add(new InvariantCondition(clazz, exprs[i], true));
}
}
}
}
}
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