/*
* ====================================================================
*
* The ObjectStyle Group Software License, Version 1.0
*
* Copyright (c) 2005 The ObjectStyle Group and individual authors of the
* software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowlegement: "This product includes software
* developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately,
* this acknowlegement may appear in the software itself, if and wherever such
* third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or
* promote products derived from this software without prior written permission.
* For written permission, please contact andrus@objectstyle.org.
*
* 5. Products derived from this software may not be called "ObjectStyle" nor
* may "ObjectStyle" appear in their names without prior written permission of
* the ObjectStyle Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* OBJECTSTYLE GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals on
* behalf of the ObjectStyle Group. For more information on the ObjectStyle
* Group, please see <http://objectstyle.org/>.
*
*/
package org.objectstyle.wolips.ruleeditor.model;
import java.beans.PropertyChangeListener;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
/**
* @author uli
* @author <a href="mailto:hprange@moleque.com.br">Henrique Prange</a>
*/
public class Rule extends AbstractRuleElement {
protected static final String AUTHOR_KEY = "author";
protected static final String DEFAULT_ASSIGNMENT_CLASS_NAME = "com.webobjects.directtoweb.Rule";
protected static final String DEFAULT_AUTHOR = "100";
protected static final String LHS_KEY = "lhs";
protected static final String RHS_KEY = "rhs";
private String author;
private final LeftHandSide leftHandSide;
private final RightHandSide rightHandSide;
protected Rule() {
super(Collections.EMPTY_MAP);
setAssignmentClassName(DEFAULT_ASSIGNMENT_CLASS_NAME);
setAuthor(DEFAULT_AUTHOR);
leftHandSide = new LeftHandSide();
rightHandSide = new RightHandSide();
}
protected Rule(final Map properties) {
super(properties);
Map<String, Object> lhsProperties = (Map<String, Object>) properties.get(LHS_KEY);
if (lhsProperties == null) {
leftHandSide = new LeftHandSide();
} else {
leftHandSide = new LeftHandSide(lhsProperties);
}
properties.remove(LHS_KEY);
Map<String, Object> rhsProperties = (Map<String, Object>) properties.get(RHS_KEY);
rightHandSide = new RightHandSide(rhsProperties);
properties.remove(RHS_KEY);
setAuthor(properties.get(AUTHOR_KEY).toString());
}
/**
* Create a new instance of <code>Rule</code> as a copy of the rule taken.
*
* @param rule
* A D2W rule
*/
protected Rule(Rule rule) {
super(Collections.EMPTY_MAP);
Map lhsMap = rule.getLeftHandSide().toMap();
leftHandSide = new LeftHandSide(lhsMap != null ? lhsMap : Collections.EMPTY_MAP);
Map rhsMap = rule.getRightHandSide().toMap();
rightHandSide = new RightHandSide(rhsMap != null ? rhsMap : Collections.EMPTY_MAP);
setAssignmentClassName(rule.getAssignmentClassName());
setAuthor(rule.getAuthor());
}
@Override
public void addPropertyChangeListener(PropertyChangeListener listener) {
super.addPropertyChangeListener(listener);
leftHandSide.addPropertyChangeListener(listener);
rightHandSide.addPropertyChangeListener(listener);
}
public String getAuthor() {
return author;
}
public LeftHandSide getLeftHandSide() {
return leftHandSide;
}
public RightHandSide getRightHandSide() {
return rightHandSide;
}
@Override
public void removePropertyChangeListener(PropertyChangeListener listener) {
super.removePropertyChangeListener(listener);
leftHandSide.removePropertyChangeListener(listener);
rightHandSide.removePropertyChangeListener(listener);
}
public void setAuthor(final String author) {
String oldValue = this.author;
this.author = author;
firePropertyChange(AUTHOR_KEY, oldValue, this.author);
}
@Override
public Map<String, Object> toMap() {
Map<String, Object> ruleMap = new HashMap<String, Object>();
ruleMap.put(CLASS_KEY, getAssignmentClassName());
ruleMap.put(AUTHOR_KEY, getAuthor());
Map<String, Object> lhsMap = leftHandSide.toMap();
ruleMap.put(Rule.LHS_KEY, lhsMap);
Map<String, Object> rhsMap = rightHandSide.toMap();
ruleMap.put(Rule.RHS_KEY, rhsMap);
return ruleMap;
}
}