/**
 * 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.om.features.samplingFeatures;

import com.google.common.base.Strings;

/**
 * Implementation for sam:SamplingFeatureComplex
 * 
 * @author <a href="mailto:e.h.juerrens@52north.org">Eike Hinderk
 *         Jürrens</a>
 * 
 * @since 4.0.0
 */
public class SamplingFeatureComplex {

    /**
     * Related sampling feature role
     */
    private final String relatedSamplingFeatureRole;

    /**
     * Related sampling feature
     */
    private final SamplingFeature relatedSamplingFeature;

    /**
     * constructor
     * 
     * @param relatedSamplingFeatureRole
     *            Related sampling feature role
     * @param relatedSamplingFeature
     *            Related sampling feature
     * @exception IllegalArgumentException
     *                If {@link #relatedSamplingFeatureRole} is null or empty
     *                and {@link #relatedSamplingFeature} is null or empty
     */
    public SamplingFeatureComplex(final String relatedSamplingFeatureRole, final SamplingFeature relatedSamplingFeature) {
        if (Strings.isNullOrEmpty(relatedSamplingFeatureRole)) {
            throw new IllegalArgumentException("relatedSamplingFeatureRole is required.");
        }
        if (relatedSamplingFeature == null || !relatedSamplingFeature.isSetIdentifier()) {
            throw new IllegalArgumentException(
                    "relatedSamplingFeature is required and MUST have set at least an identifier.");
        }
        this.relatedSamplingFeatureRole = relatedSamplingFeatureRole;
        this.relatedSamplingFeature = relatedSamplingFeature;
    }

    /**
     * Get Related sampling feature role
     * 
     * @return Related sampling feature role
     */
    public String getRelatedSamplingFeatureRole() {
        return relatedSamplingFeatureRole;
    }

    /**
     * Get related sampling feature
     * 
     * @return Related sampling feature
     */
    public SamplingFeature getRelatedSamplingFeature() {
        return relatedSamplingFeature;
    }

}