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/*
 * Copyright (C) 2015-2022 52°North Spatial Information Research GmbH
 *
 * 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 at
 *
 *    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 org.n52.svalbard.encode;

import java.util.Collections;
import java.util.Set;

import org.apache.xmlbeans.XmlObject;
import org.n52.shetland.ogc.sos.Sos2Constants;
import org.n52.shetland.ogc.sos.SosConstants;
import org.n52.shetland.ogc.sos.delobs.DeleteObservationConstants;
import org.n52.shetland.ogc.sos.delobs.DeleteObservationResponse;
import org.n52.shetland.w3c.SchemaLocation;
import org.n52.svalbard.encode.exception.EncodingException;
import org.n52.svalbard.encode.exception.UnsupportedEncoderInputException;

import com.google.common.collect.Sets;

import net.opengis.sosdo.x10.DeleteObservationResponseDocument;
import net.opengis.sosdo.x10.DeleteObservationResponseType;

/**
 * @author Eike Hinderk Jürrens
 * @since 1.0.0
 */
public class DeleteObservationEncoder extends AbstractResponseEncoder {
    public static final SchemaLocation SCHEMA_LOCATION
            = new SchemaLocation(DeleteObservationConstants.NS_SOSDO_1_0,
                                 DeleteObservationConstants.NS_SOSDO_1_0_SCHEMA_LOCATION);

    public DeleteObservationEncoder() {
        super(SosConstants.SOS,
              Sos2Constants.SERVICEVERSION,
              DeleteObservationConstants.Operations.DeleteObservation.name(),
              DeleteObservationConstants.NS_SOSDO_1_0,
              DeleteObservationConstants.NS_SOSDO_PREFIX,
              DeleteObservationResponse.class);
    }

    @Override
    public Set getConformanceClasses(String service, String version) {
        if (SosConstants.SOS.equals(service) && Sos2Constants.SERVICEVERSION.equals(version)) {
            return Collections.unmodifiableSet(DeleteObservationConstants.CONFORMANCE_CLASSES);
        }
        return Collections.emptySet();
    }

    @Override
    protected XmlObject create(DeleteObservationResponse dor) throws EncodingException {
        if (dor == null) {
            throw new UnsupportedEncoderInputException(this, DeleteObservationResponse.class);
        }

        String observationId = dor.getObservationId();
        DeleteObservationResponseDocument xbDeleteObsDoc = DeleteObservationResponseDocument.Factory
                .newInstance(getXmlOptions());
        DeleteObservationResponseType xbDeleteObservationResponse = xbDeleteObsDoc.addNewDeleteObservationResponse();
        xbDeleteObservationResponse.setDeletedObservation(observationId);
        return xbDeleteObsDoc;
    }

    @Override
    public Set getSchemaLocations() {
        return Sets.newHashSet(SCHEMA_LOCATION);
    }

    @Override
    protected Set getConcreteSchemaLocations() {
        return Sets.newHashSet();
    }
}