/*******************************************************************************
* Mission Control Technologies, Copyright (c) 2009-2012, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* The MCT platform is 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.
*
* MCT includes source code licensed under additional open source licenses. See
* the MCT Open Source Licenses file included with this distribution or the About
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*******************************************************************************/
package gov.nasa.arc.mct.evaluator.view;
import java.util.Collection;
import gov.nasa.arc.mct.components.AbstractComponent;
import gov.nasa.arc.mct.evaluator.component.MultiComponent;
import gov.nasa.arc.mct.gui.OptionBox;
import gov.nasa.arc.mct.policy.ExecutionResult;
import gov.nasa.arc.mct.policy.Policy;
import gov.nasa.arc.mct.policy.PolicyContext;
/** Policy to prevent removal of associated parameters from a multi-input evaluator if
* they are currently used by the encoded rules of the evaluator
* @author dcberrio
*
*/
public class MultiChildRemovalPolicy implements Policy {
/* (non-Javadoc)
* @see gov.nasa.arc.mct.policy.Policy#execute(gov.nasa.arc.mct.policy.PolicyContext)
*/
@Override
public ExecutionResult execute(PolicyContext context) {
AbstractComponent multi = context.getProperty(PolicyContext.PropertyName.TARGET_COMPONENT.getName(), AbstractComponent.class);
@SuppressWarnings("unchecked")
Collection<AbstractComponent> sources = context.getProperty(PolicyContext.PropertyName.SOURCE_COMPONENTS.getName(), Collection.class);
boolean canExecute = true;
if (multi.getCapability(MultiComponent.class) != null) {
for (AbstractComponent ac : sources) {
if (ac.getExternalKey() != null) {
if (((MultiComponent) multi).getData().getCode().contains(ac.getExternalKey())) {
canExecute = false;
}
}
}
}
if (canExecute) {
return new ExecutionResult(context, true, "");
} else {
return new ExecutionResult(context, false, "One or more objects could not be removed because it is being used");
}
}
}