/*******************************************************************************
* Copyright (c) 2009 Johannes Utzig.
* All rights reserved. This program and the accompanying materials
* are 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:
* Johannes Utzig - initial API and implementation
*******************************************************************************/
package org.eclipse.buckminster.ui.dependency.visualizer.viewer.provider.internal;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.buckminster.core.metadata.model.BOMNode;
import org.eclipse.buckminster.ui.dependency.visualizer.connections.ConnectionCategory;
import org.eclipse.buckminster.ui.dependency.visualizer.viewer.provider.IRelationshipProvider;
import org.eclipse.zest.core.viewers.EntityConnectionData;
/**
* The UsageRelationshipProvider gathers all connections to {@link BOMNode}s
* that directly depend on the given {@link BOMNode}.
*
* @author Johannes Utzig
*
*/
public class UsageRelationshipProvider implements IRelationshipProvider {
@Override
public Map<EntityConnectionData, ConnectionCategory> getInterestingRelationships(BOMNode root, BOMNode currentSelection, Object[] connections) {
HashMap<EntityConnectionData, ConnectionCategory> relationships = new HashMap<EntityConnectionData, ConnectionCategory>();
for (int i = 0; i < connections.length; i++) {
Object o = connections[i];
if (o instanceof EntityConnectionData) {
EntityConnectionData data = (EntityConnectionData) o;
if (data.dest == currentSelection)
relationships.put(data, ConnectionCategory.USAGE);
}
}
return relationships;
}
}