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/**
 * Legato is a configurable, lightweight web mapping client that can be
 * easily embedded into web pages and portals, CMS and individual web
 * applications. Legato is implemented in JavaScript and based on the
 * popular open source library OpenLayers.
 *
 * Copyright (C) 2010  disy Informationssysteme GmbH, http://www.disy.net
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */

package net.disy.ogc.wps.v_1_0_0;

import java.util.Locale;

import net.disy.ogc.ows.v_1_1_0.InvalidParameterValueException;
import net.disy.ogc.ows.v_1_1_0.MissingParameterValueException;
import net.disy.ogc.ows.v_1_1_0.OwsException;
import net.opengis.ows.v_1_1_0.CodeType;
import net.opengis.wps.v_1_0_0.Execute;
import net.opengis.wps.v_1_0_0.ExecuteResponse;

public class DefaultExecuteService implements ExecuteService {
  private WpsProcessRegistry wpsProcessRegistry;
  private final String url;

  public DefaultExecuteService(String url) {
    this.url = url;
  }

  public WpsProcessRegistry getWpsProcessRegistry() {
    return wpsProcessRegistry;
  }

  public void setWpsProcessRegistry(WpsProcessRegistry wpsProcessRegistry) {
    this.wpsProcessRegistry = wpsProcessRegistry;
  }

  public String getUri() {
    return url;
  }

  @Override
  public ExecuteResponse execute(Execute input) throws OwsException {

    final CodeType identifier = input.getIdentifier();

    if (identifier == null) {
      throw new MissingParameterValueException("identifier"); //$NON-NLS-1$
    }

    final WpsProcess wpsProcess = getWpsProcessRegistry().getProcessByIdentifier(identifier);

    if (wpsProcess == null) {
      throw new InvalidParameterValueException("identifier", identifier.getValue()); //$NON-NLS-1$
    }
    final ExecuteResponse executeResponse = wpsProcess.execute(
        input.getDataInputs(),
        input.getResponseForm(),
        Locale.ENGLISH.toString());

    executeResponse.setServiceInstance(getUri() + "?request=GetCapabilities&service=WPS"); //$NON-NLS-1$
    return executeResponse;
  }
}