/*
 *    Geotoolkit - An Open Source Java GIS Toolkit
 *    http://www.geotoolkit.org
 *
 *    (C) 2012-2013, Geomatys
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 */
package org.geotoolkit.processing.chain;

import org.apache.sis.parameter.ParameterBuilder;
import org.geotoolkit.processing.AbstractProcess;
import org.geotoolkit.processing.AbstractProcessDescriptor;
import org.geotoolkit.process.Process;
import org.geotoolkit.process.ProcessDescriptor;
import org.apache.sis.util.iso.SimpleInternationalString;
import org.opengis.parameter.ParameterDescriptor;
import org.opengis.parameter.ParameterDescriptorGroup;
import org.opengis.parameter.ParameterValueGroup;

public class MockDivideDescriptor extends AbstractProcessDescriptor{

    public static final String NAME = "divide";

    public static final ParameterDescriptor<Double> FIRST_NUMBER = new ParameterBuilder()
            .addName("first")
            .setRequired(true)
            .create(Double.class, null);
    public static final ParameterDescriptor<Double> SECOND_NUMBER = new ParameterBuilder()
            .addName("second")
            .setRequired(true)
            .create(Double.class, null);
    public static final ParameterDescriptorGroup INPUT_DESC = new ParameterBuilder()
            .addName("InputParameters")
            .createGroup(FIRST_NUMBER,SECOND_NUMBER);

    public static final ParameterDescriptor<Double> RESULT_NUMBER = new ParameterBuilder()
            .addName("result")
            .setRequired(true)
            .create(Double.class, null);
    public static final ParameterDescriptorGroup OUTPUT_DESC = new ParameterBuilder()
            .addName("OutputParameters")
            .createGroup(RESULT_NUMBER);

    public static final ProcessDescriptor INSTANCE = new MockDivideDescriptor();

    private MockDivideDescriptor() {
        super(NAME, MockProcessRegistry.IDENTIFICATION,
                new SimpleInternationalString(""),INPUT_DESC, OUTPUT_DESC);
    }

    @Override
    public Process createProcess(final ParameterValueGroup input) {
        return new DivideProcess(this, input);
    }

    public class DivideProcess extends AbstractProcess {

        public DivideProcess(final ProcessDescriptor descriptor, final ParameterValueGroup input) {
            super(descriptor, input);
        }

        @Override
        protected void execute() {
            final double first = (Double) inputParameters.parameter(MockAddDescriptor.FIRST_NUMBER.getName().getCode()).getValue();
            final double second = (Double) inputParameters.parameter(MockAddDescriptor.SECOND_NUMBER.getName().getCode()).getValue();
            Double result = first / second;
            outputParameters.parameter(MockAddDescriptor.RESULT_NUMBER.getName().getCode()).setValue(result);
        }
    }
    
}