Package gov.nasa.arc.mct.core.policy

Source Code of gov.nasa.arc.mct.core.policy.AllCannotBeInspectedPolicy

/*******************************************************************************
* 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.core.policy;

import gov.nasa.arc.mct.components.AbstractComponent;
import gov.nasa.arc.mct.core.components.TelemetryDataTaxonomyComponent;
import gov.nasa.arc.mct.platform.core.access.PlatformAccess;
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.ViewType;

/**
* This policy filters out <code>InspectableViewRole</code>s for the root component.
*/
public class AllCannotBeInspectedPolicy implements Policy {

    private static final String EM_STR = "";

    @Override
    public ExecutionResult execute(PolicyContext context) {
      AbstractComponent rootComponent = PlatformAccess.getPlatform().getRootComponent();
        ExecutionResult trueResult = new ExecutionResult(context, true, EM_STR);
        TelemetryDataTaxonomyComponent component = context.getProperty(PolicyContext.PropertyName.TARGET_COMPONENT.getName(), TelemetryDataTaxonomyComponent.class);
        if (component == null || component != rootComponent)
            return trueResult;
       
        ViewType viewType = context.getProperty(PolicyContext.PropertyName.VIEW_TYPE.getName(), ViewType.class);
        return viewType != ViewType.OBJECT ? trueResult : new ExecutionResult(context, false, EM_STR);
    }

}
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