/*******************************************************************************
* Copyright (c) 2015 Association for Decentralized Information Management in
* Industry THTH ry.
* 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:
* Semantum Oy - initial API and implementation
*******************************************************************************/
package org.simantics.browsing.ui.model.actions;
import org.simantics.browsing.ui.BuiltinKeys;
import org.simantics.browsing.ui.NodeContext;
import org.simantics.browsing.ui.model.nodetypes.NodeType;
import org.simantics.browsing.ui.model.nodetypes.NodeTypeMultiMap;
import org.simantics.browsing.ui.model.tests.Test;
import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.common.utils.Logger;
import org.simantics.db.exception.DatabaseException;
import org.simantics.viewpoint.ontology.ViewpointResource;
/**
* Encapsulation of a browse context {@link NodeType} and input tester. Consists
* of a node type, a priority and a possible {@link Test} that returns whether
* the action related to this test is enabled or not. If there is no test
* defined, the test is considered to return true
.
*
* @author Tuukka Lehtonen
*/
public class TestContribution implements Comparable {
NodeType nodeType;
Test test;
double priority;
public TestContribution(NodeType nodeType, Test test, double priority) {
super();
this.nodeType = nodeType;
this.test = test;
this.priority = priority;
}
public static void load(ReadGraph g, Resource r, NodeTypeMultiMap contributions) throws DatabaseException {
ViewpointResource VR = ViewpointResource.getInstance(g);
NodeType nodeType = g.adapt(g.getSingleObject(r, VR.TestContribution_HasNodeType), NodeType.class);
Resource testResource = g.getPossibleObject(r, VR.TestContribution_HasTest);
Test test = testResource == null ? null : g.adapt(testResource, Test.class);
Double mpriority = g.getPossibleRelatedValue(r, VR.DropActionContribution_HasPriority);
double priority = mpriority == null ? 0.0 : mpriority.doubleValue();
contributions.put(nodeType, new TestContribution(nodeType, test, priority));
}
public boolean test(ReadGraph graph, NodeContext context) {
try {
return test == null || test.test(graph, context.getConstant(BuiltinKeys.INPUT));
} catch (DatabaseException e) {
Logger.defaultLogError(e);
return false;
}
}
@Override
public int compareTo(TestContribution o) {
return Double.compare(o.priority, priority);
}
}