DataLayerResource.java example

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geotools-2.7.x-master
/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2002-2011, Open Source Geospatial Foundation (OSGeo)
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library 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
 *    Lesser General Public License for more details.
 */
package org.geotools.data.sfs.mock;

import org.restlet.Context;

import org.restlet.data.MediaType;
import org.restlet.data.Request;
import org.restlet.data.Response;
import org.restlet.data.Status;
import org.restlet.ext.json.JsonRepresentation;
import org.restlet.resource.Representation;
import org.restlet.resource.Resource;

import org.restlet.resource.ResourceException;
import org.restlet.resource.StringRepresentation;
import org.restlet.resource.Variant;

/**
 * This class handle requests like
 * http://localhost:8082/simplefeatureservice/data/layerAsia?mode=features
 * http://localhost:8082/simplefeatureservice/data/layerAsia
 * It generates a list of features satifsying the provided filters 
 * @author narad
 *
 * @source $URL: http://svn.osgeo.org/geotools/branches/2.7.x/build/maven/javadoc/../../../modules/unsupported/sfs/src/test/java/org/geotools/data/sfs/mock/DataLayerResource.java $
 */
public class DataLayerResource extends Resource {

    public DataLayerResource(Context context, Request request, Response response) {
        super(context, request, response);

        // This representation has only one type of representation.
        getVariants().add(new Variant(MediaType.APPLICATION_JSON));
    }

    /**
     * Allow a POST http request
     *
     * @return
     */
    public boolean allowPost() {
        return true;
    }

    /**
     * Handle a POST HTTP request.
     *
     * @param entity
     * @throws ResourceException
     */
    @Override
    public void acceptRepresentation(Representation entity) throws ResourceException {
        getResponse().setEntity(represent(new Variant(MediaType.APPLICATION_JSON)));
        getResponse().setStatus(Status.SUCCESS_OK);
    }

    /**
     * This method is used to server a list of available layers
     * http://localhost:8084/simplefeatureservice-mockup-service-1.0-SNAPSHOT/data/layerAsia?mode=features
     * You can use the URL given below too
     * http://localhost:8084/simplefeatureservice-mockup-service-1.0-SNAPSHOT/data/layerAsia
     * @param variant
     * @return
     * @throws ResourceException
     */
    @Override
    public Representation represent(Variant variant) throws ResourceException {
        String _strJson = "{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"id\":\"tiger_roads.1\",\"geometry\":{\"type\":\"MultiLineString\",\"coordinates\":[[[-73.999559,40.73158],[-73.999079,40.732188]]]},\"geometry_name\":\"the_geom\",\"properties\":{\"CFCC\":\"A41\",\"NAME\":\"Washington Sq W\"}},{\"type\":\"Feature\",\"id\":\"tiger_roads.2\",\"geometry\":{\"type\":\"MultiLineString\",\"coordinates\":[[[-73.950718,40.810874],[-73.952101,40.811472]]]},\"geometry_name\":\"the_geom\",\"properties\":{\"CFCC\":\"A42\",\"NAME\":\"W 126th St\"}}";
        Representation representation = new StringRepresentation(_strJson, MediaType.APPLICATION_JSON);
        return representation;
    }
}