/*
* IzPack - Copyright 2001-2008 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/
* http://izpack.codehaus.org/
*
* Copyright 2007 Dennis Reil
*
* 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 com.izforge.izpack.rules;
import com.izforge.izpack.util.Debug;
import com.izforge.izpack.adaptator.IXMLElement;
/**
* @author Dennis Reil, <Dennis.Reil@reddot.de>
*/
public class NotCondition extends Condition
{
/**
*
*/
private static final long serialVersionUID = 3194843222487006309L;
protected Condition operand;
/**
*
*/
public NotCondition()
{
super();
// TODO Auto-generated constructor stub
}
/**
*
*/
public NotCondition(Condition operand)
{
this.operand = operand;
}
/*
* (non-Javadoc)
*
* @see de.reddot.installer.util.Condition#isTrue()
*/
/*
public boolean isTrue(Properties variables)
{
return !operand.isTrue(variables);
}
*/
/*
* (non-Javadoc)
*
* @see de.reddot.installer.rules.Condition#readFromXML(com.izforge.izpack.adaptator.IXMLElement)
*/
public void readFromXML(IXMLElement xmlcondition)
{
try
{
if (xmlcondition.getChildrenCount() != 1)
{
Debug.log("not-condition needs one condition as operand");
return;
}
this.operand = RulesEngine.analyzeCondition(xmlcondition.getChildAtIndex(0));
}
catch (Exception e)
{
Debug.log("missing element in not-condition");
}
}
/*
public boolean isTrue(Properties variables, List selectedpacks)
{
return !operand.isTrue(variables, selectedpacks);
}
*/
public boolean isTrue()
{
return !operand.isTrue();
}
/* (non-Javadoc)
* @see com.izforge.izpack.rules.Condition#getDependenciesDetails()
*/
public String getDependenciesDetails()
{
StringBuffer details = new StringBuffer();
details.append(this.id);
details.append(" depends on:<ul><li>NOT ");
details.append(operand.getDependenciesDetails());
details.append("</li></ul>");
return details.toString();
}
}