/*******************************************************************************
 * Copyright (c) 2007, 2011 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.databoard.binding.factory;

import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.PriorityQueue;
import java.util.Set;
import java.util.TreeMap;
import java.util.TreeSet;
import java.util.UUID;

import org.simantics.databoard.Datatypes;
import org.simantics.databoard.binding.Binding;
import org.simantics.databoard.binding.error.BindingConstructionException;
import org.simantics.databoard.binding.impl.ArrayListBinding;
import org.simantics.databoard.binding.impl.BooleanArrayBinding;
import org.simantics.databoard.binding.impl.ByteArrayBinding;
import org.simantics.databoard.binding.impl.DefaultMapBinding;
import org.simantics.databoard.binding.impl.DefaultSetBinding;
import org.simantics.databoard.binding.impl.DoubleArrayBinding;
import org.simantics.databoard.binding.impl.FloatArrayBinding;
import org.simantics.databoard.binding.impl.HashMapBinding;
import org.simantics.databoard.binding.impl.HashSetBinding;
import org.simantics.databoard.binding.impl.IntArrayBinding;
import org.simantics.databoard.binding.impl.LinkedListBinding;
import org.simantics.databoard.binding.impl.LongArrayBinding;
import org.simantics.databoard.binding.impl.ObjectArrayBinding;
import org.simantics.databoard.binding.impl.PriorityQueueBinding;
import org.simantics.databoard.binding.impl.ThrowableBinding;
import org.simantics.databoard.binding.impl.TreeMapBinding;
import org.simantics.databoard.binding.impl.TreeSetBinding;
import org.simantics.databoard.binding.impl.UUIDBinding;
import org.simantics.databoard.binding.reflection.BindingProvider;
import org.simantics.databoard.binding.reflection.BindingRequest;
import org.simantics.databoard.binding.reflection.ClassBindingFactory;
import org.simantics.databoard.binding.reflection.GenericArrayBinding;
import org.simantics.databoard.type.ArrayType;
import org.simantics.databoard.type.MapType;

/**
 * This provider constructs Bindings for java.util classes.
 * 
 * @author toni.kalajainen
 */
public class JavaUtilBindingsProvider implements BindingProvider {

	@Override
	public Binding provideBinding(ClassBindingFactory factory, BindingRequest request) throws BindingConstructionException {

		if ( UUID.class.isAssignableFrom( request.getClazz() ) ) {
			return new UUIDBinding();
		}
		
		if ( Throwable.class.isAssignableFrom( request.getClazz() ) ) {
			@SuppressWarnings("unchecked")
			Binding b = new ThrowableBinding( (Class<Throwable>) request.getClazz() ); 
			return b;
		}
		
        if (request.getClazz().isArray()) {
    		Class<?> c = request.getClazz();
    		if (c.equals(boolean[].class)) return new BooleanArrayBinding(new ArrayType(), null);
    		else if (c.equals(byte[].class)) return new ByteArrayBinding(new ArrayType(), null);
    		else if (c.equals(double[].class)) return new DoubleArrayBinding(new ArrayType(), null);
    		else if (c.equals(float[].class)) return new FloatArrayBinding(new ArrayType(), null);
    		else if (c.equals(int[].class)) return new IntArrayBinding(new ArrayType(), null);
    		else if (c.equals(long[].class)) return new LongArrayBinding(new ArrayType(), null);
    		else if (c.equals(Object[].class)) return new ObjectArrayBinding(new ArrayType(), null);
    		else return new GenericArrayBinding(request.getClazz(), new ArrayType(), null);
        } else if (LinkedList.class.isAssignableFrom(request.getClazz())) {
   			return new LinkedListBinding(new ArrayType(), null);
        } else if (List.class.isAssignableFrom(request.getClazz())) {
   			return new ArrayListBinding(new ArrayType(), null);
        } else if (PriorityQueue.class.isAssignableFrom(request.getClazz())) {
        	return new PriorityQueueBinding(new ArrayType(), null);
        }

        if (TreeSet.class.isAssignableFrom(request.getClazz())) {
            MapType type = new MapType();
            type.valueType = Datatypes.VOID;
        	return new TreeSetBinding(type, null);
        }

        if (HashSet.class.isAssignableFrom(request.getClazz())) {
            MapType type = new MapType();
            type.valueType = Datatypes.VOID;
        	return new HashSetBinding(type, null);
        }
        
        if (Set.class.isAssignableFrom(request.getClazz())) {
            MapType type = new MapType();
            type.valueType = Datatypes.VOID;
        	return new DefaultSetBinding(type, null);
        }
		
        if (TreeMap.class.isAssignableFrom(request.getClazz())) {
          	return new TreeMapBinding(new MapType(), null, null);
        } 

        if (HashMap.class.isAssignableFrom(request.getClazz())) {
           	return new HashMapBinding(new MapType(), null, null);
        }

        if (Map.class.isAssignableFrom(request.getClazz())) {
           	return new DefaultMapBinding(new MapType(), null, null);
        }
        		
		return null;
	}

}