/**
 * Copyright (C) 2012-2017 52°North Initiative for Geospatial Open Source
 * Software GmbH
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 *
 * If the program is linked with libraries which are licensed under one of
 * the following licenses, the combination of the program with the linked
 * library is not considered a "derivative work" of the program:
 *
 *     - Apache License, version 2.0
 *     - Apache Software License, version 1.0
 *     - GNU Lesser General Public License, version 3
 *     - Mozilla Public License, versions 1.0, 1.1 and 2.0
 *     - Common Development and Distribution License (CDDL), version 1.0
 *
 * Therefore the distribution of the program linked with libraries licensed
 * under the aforementioned licenses, is permitted by the copyright holders
 * if the distribution is compliant with both the GNU General Public
 * License version 2 and the aforementioned licenses.
 *
 * This program 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 General
 * Public License for more details.
 */
package org.n52.sos.ogc.ows;

import java.util.Collection;
import java.util.Set;

import com.google.common.collect.Sets;

/**
 * Class represents an OWS AllowedValues value element
 * 
 * @author Carsten Hollmann <c.hollmann@52north.org>
 * 
 * @since 4.0.0
 * 
 */
public class OwsAllowedValuesValue implements OwsAllowedValues {

    private Set<String> values = Sets.newHashSet();

    /**
     * constructor
     * 
     * @param value
     */
    public OwsAllowedValuesValue(String value) {
        addValue(value);
    }

    /**
     * constructor
     * 
     * @param values
     */
    public OwsAllowedValuesValue(Collection<String> values) {
        setValues(values);
    }

    /**
     * @return the values
     */
    public Set<String> getValues() {
        return values;
    }

    /**
     * @param value
     *            the value to add
     */
    public void addValue(String value) {
        getValues().add(value);
    }

    /**
     * @param values
     *            the values to add
     */
    public void addValues(Collection<String> values) {
        getValues().addAll(values);
    }

    /**
     * @param values
     *            the values to set
     */
    private void setValues(Collection<String> values) {
        this.values = Sets.newHashSet(values);
    }
}