/*******************************************************************************
* Copyright (c) 2007 Exadel, Inc. and Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is made available under the terms of the
* Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Exadel, Inc. and Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.common.meta.action.impl.handlers;
import java.util.*;
import org.jboss.tools.common.meta.action.*;
import org.jboss.tools.common.model.*;
import org.jboss.tools.common.meta.action.impl.AbstractHandler;
public class DefaultRedirectHandler extends AbstractHandler implements XRedirect {
public DefaultRedirectHandler() {}
public final XModelObject getRedirectSource(XModelObject source) {
return getTrueSource(source);
}
public final XAction getRedirectAction(XModelObject source) {
return getTrueAction(source);
}
protected XModelObject getTrueSource(XModelObject source) {
String path = action.getProperty("sourcepath"); //$NON-NLS-1$
return (path == null) ? null : source.getChildByPath(path);
}
protected XAction getTrueAction(XModelObject source) {
XModelObject ts = getTrueSource(source);
if (ts == null) return null;
String apath = action.getProperty("actionpath"); //$NON-NLS-1$
if(apath == null) return null;
StringTokenizer st = new StringTokenizer(apath, XModelObjectConstants.SEPARATOR);
XActionItem l = ts.getModelEntity().getActionList();
while(st.hasMoreElements()) {
l = l.getItem(st.nextToken());
if(l == null) return null;
}
return (l instanceof XAction) ? (XAction)l : null;
}
public boolean isEnabled(XModelObject object) {
XAction a = getTrueAction(object);
return (a != null && a.isEnabled(getTrueSource(object)));
}
public boolean isEnabled(XModelObject object, XModelObject[] objects) {
boolean s = super.isEnabled(object, objects);
if(!s || objects == null || objects.length < 2) return s;
XAction a = getTrueAction(object);
XModelObject o = getTrueSource(object);
XModelObject[] os = new XModelObject[objects.length];
for (int i = 0; i < os.length; i++) {
os[i] = getTrueSource(objects[i]);
if(os[i] == null) return false;
}
return (a != null && o != null && a.isEnabled(o, os));
}
public boolean getSignificantFlag(XModelObject object) {
XAction a = getTrueAction(object);
return (a != null && a.getSignificantFlag(getTrueSource(object)));
}
public XEntityData[] getEntityData(XModelObject object) {
XAction a = getTrueAction(object);
return (a == null) ? new XEntityData[0] : a.getEntityData(getTrueSource(object));
}
public void executeHandler(XModelObject object, Properties p) throws XModelException {
if(!isEnabled(object)) return;
XAction a = getTrueAction(object);
a.executeHandler(getTrueSource(object), p);
}
protected void checkEnvironment(Object environment) {
if(environment == null || !(environment instanceof Object[])) return;
Object[] os = (Object[])environment;
if(os.length == 0 || !(os[0] instanceof XModelObject)) return;
os[0] = getTrueSource((XModelObject)os[0]);
}
}