Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.remoteclient.wfs.request;

import org.gvsig.remoteclient.utils.CapabilitiesTags;

import org.gvsig.remoteclient.wfs.WFSProtocolHandler;

import org.gvsig.remoteclient.wfs.WFSRequestInformation;

import org.gvsig.remoteclient.wfs.WFSStatus;

import org.gvsig.remoteclient.wfs.edition.WFSTTags;

import org.gvsig.remoteclient.wfs.filters.filterencoding.FilterEncoding;

/**

 * The GetFeature operation allows retrieval of features from a 

 * web feature service. A GetFeature request is processed by

 * a WFS and when the value of the outputFormat attribute is 

 * set to text/gml a GML instance document, containing the 

 * result set, is returned to the client.

 * @see http://www.opengeospatial.org/standards/wfs

 * @author Jorge Piera Llodrá (jorge.piera@iver.es)

 */

public abstract class WFSGetFeatureRequest extends WFSRequest{

        public WFSGetFeatureRequest(WFSStatus status,

                        WFSProtocolHandler protocolHandler) {

                super(status, protocolHandler);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getHttpPostRequest(java.lang.String)

         */

        protected String getHttpPostRequest(String onlineResource) {

                StringBuffer request = new StringBuffer();

                request.append(WFSTTags.XML_ROOT);

                request.append("<" + WFSTTags.WFS_NAMESPACE_PREFIX + ":");

                request.append(CapabilitiesTags.WFS_GETFEATURE + " ");

                request.append(CapabilitiesTags.VERSION + "=\"" + protocolHandler.getVersion() + "\" ");

                request.append(WFSTTags.WFST_SERVICE + "=\"WFS\" ");

                if (status.getMaxFeatures().longValue() > 0){

            request.append(CapabilitiesTags.MAXFEATURES + "=\"" + status.getMaxFeatures() + "\" ");

        }

                if (status.getResultType() == WFSStatus.RESULTYPE_HITS){

                        request.append(WFSTTags.WFS_RESULTTYPE + "=\"" + WFSTTags.WFS_HITS + "\" ");

                }

                request.append(WFSTTags.XMLNS + ":" + WFSTTags.OGC_NAMESPACE_PREFIX);

                request.append("=\"" + WFSTTags.OGC_NAMESPACE + "\" ");

                request.append(WFSTTags.XMLNS + ":" + WFSTTags.WFS_NAMESPACE_PREFIX);

                request.append("=\"" + WFSTTags.WFS_NAMESPACE + "\" ");

                request.append(WFSTTags.XMLNS + ":" + WFSTTags.XML_NAMESPACE_PREFIX);

                request.append("=\"" + WFSTTags.XML_NAMESPACE + "\" ");

                request.append(WFSTTags.XMLNS + ":" + WFSTTags.GML_NAMESPACE_PREFIX);

                request.append("=\"" + WFSTTags.GML_NAMESPACE + "\" ");

                request.append(WFSTTags.XMLNS + ":" + status.getNamespacePrefix());

                request.append("=\"" + status.getNamespaceLocation() + "\" ");

                request.append(WFSTTags.XML_NAMESPACE_PREFIX + ":" + WFSTTags.XML_SCHEMALOCATION);

                request.append("=\"" + WFSTTags.WFS_NAMESPACE + " ");

                request.append(getSchemaLocation());

                request.append("\">");

                request.append("<" + WFSTTags.WFS_NAMESPACE_PREFIX + ":");

                request.append(WFSTTags.WFS_QUERY);

                request.append(" typeName=\"" + status.getFeatureFullName() + "\"");

                request.append(">");

                if ((status.getFilterByAttribute() != null) || (status.getFilterByArea() != null)){                        

                        FilterEncoding filterEncoding = new FilterEncoding(status);

                        request.append(filterEncoding.toString(protocolHandler.getVersion()));                

                }

                request.append("</" + WFSTTags.WFS_NAMESPACE_PREFIX + ":");

                request.append(WFSTTags.WFS_QUERY);

                request.append(">");

                request.append("</" + WFSTTags.WFS_NAMESPACE_PREFIX + ":");

                request.append(CapabilitiesTags.WFS_GETFEATURE + ">");

                return request.toString();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getOperationCode()

         */

        protected String getOperationName() {

                return CapabilitiesTags.WFS_GETFEATURE;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getSchemaLocation()

         */

        protected String getSchemaLocation() {

                return null;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.remoteClient.wfs.requests.WFSRequest#getTempFilePrefix()

         */

        protected String getTempFilePrefix() {

                return "wfs_getFeature.gml";

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.remoteclient.wfs.request.WFSRequest#createRequestInformation()

         */

        public WFSRequestInformation createRequestInformation() {

                return new WFSGetFeatureRequestInformation();

        }

}