/*******************************************************************************
* 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
* MCT Licenses dialog available at runtime from the MCT Help menu for additional
* information.
*******************************************************************************/
package gov.nasa.arc.mct.graphics;
import gov.nasa.arc.mct.components.AbstractComponent;
import gov.nasa.arc.mct.components.FeedProvider;
import gov.nasa.arc.mct.graphics.component.GraphicalComponent;
import gov.nasa.arc.mct.graphics.view.GraphicalManifestation;
import gov.nasa.arc.mct.graphics.view.StaticGraphicalView;
import gov.nasa.arc.mct.policy.ExecutionResult;
import gov.nasa.arc.mct.policy.Policy;
import gov.nasa.arc.mct.policy.PolicyContext;
import gov.nasa.arc.mct.services.component.ViewInfo;
public class GraphicalViewPolicy implements Policy {
public GraphicalViewPolicy() {}
private static boolean hasFeed(AbstractComponent component) {
return component.getCapability(FeedProvider.class) != null;
}
@Override
public ExecutionResult execute(PolicyContext context) {
boolean result = true;
ViewInfo viewInfo = context.getProperty(PolicyContext.PropertyName.TARGET_VIEW_INFO.getName(), ViewInfo.class);
if (GraphicalManifestation.class.equals(viewInfo.getViewClass())) {
AbstractComponent targetComponent = context.getProperty(PolicyContext.PropertyName.TARGET_COMPONENT.getName(), AbstractComponent.class);
result = hasFeed(targetComponent);
} else if (StaticGraphicalView.class.equals(viewInfo.getViewClass())) {
AbstractComponent targetComponent = context.getProperty(PolicyContext.PropertyName.TARGET_COMPONENT.getName(), AbstractComponent.class);
result = GraphicalComponent.class.isAssignableFrom(targetComponent.getClass());
}
return new ExecutionResult(context, result, null);
}
}