/*
 * Copyright 2009-2010 by The Regents of the University of California
 * 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 from
 * 
 *     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.
 */

package edu.uci.ics.pregelix.core.jobgen.provider;

import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputerFactory;
import edu.uci.ics.pregelix.core.base.INormalizedKeyComputerFactoryProvider;
import edu.uci.ics.pregelix.runtime.touchpoint.VLongAscNormalizedKeyComputerFactory;
import edu.uci.ics.pregelix.runtime.touchpoint.VLongDescNormalizedKeyComputerFactory;

public class NormalizedKeyComputerFactoryProvider implements INormalizedKeyComputerFactoryProvider {

    public static INormalizedKeyComputerFactoryProvider INSTANCE = new NormalizedKeyComputerFactoryProvider();

    private NormalizedKeyComputerFactoryProvider() {

    }

    @SuppressWarnings("rawtypes")
    @Override
    public INormalizedKeyComputerFactory getAscINormalizedKeyComputerFactory(Class keyClass) {
        if (keyClass.getName().indexOf("VLongWritable") > 0)
            return new VLongAscNormalizedKeyComputerFactory();
        else
            return null;
    }

    @SuppressWarnings("rawtypes")
    @Override
    public INormalizedKeyComputerFactory getDescINormalizedKeyComputerFactory(Class keyClass) {
        if (keyClass.getName().indexOf("VLongWritable") > 0)
            return new VLongDescNormalizedKeyComputerFactory();
        else
            return null;
    }
}