/*******************************************************************************
 * Copyright (c) 2007, 2010 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:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.modeling.adapters;

import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.common.adaption.SimpleAdapter;
import org.simantics.db.exception.AdaptionException;
import org.simantics.db.exception.ServiceException;
import org.simantics.db.exception.ValidationException;
import org.simantics.layer0.Layer0;
import org.simantics.modeling.ModelingResources;

public class ElementStringAdapter extends SimpleAdapter<String> {

    @Override
    public String adapt(ReadGraph g, Resource r) throws ValidationException, ServiceException {

        try {
            ModelingResources mr = ModelingResources.getInstance(g);
            Resource name = r;
            Resource component = g.getPossibleObject(r, mr.ElementToComponent);
            if (component != null)
                name = component;
            StringBuilder sb = new StringBuilder();
        	Layer0 b = Layer0.getInstance(g);
            String nameName = g.getPossibleRelatedValue(name, b.HasName);
            if (nameName != null)
                sb.append(nameName);
            boolean first = true;
            for (Resource rType : g.getPrincipalTypes(r)) {
                String s = g.adapt(rType, String.class);
                if (first) {
                    sb.append(" : ");
                    first = false;
                } else {
                    sb.append(", ");
                }
                sb.append(s);
            }
            return sb.toString();
        } catch (AdaptionException e) {
            
            throw new ValidationException(e);
            
        }
        
    }

}