gvSIG projects pool

/*

 * gvSIG. Desktop Geographic Information System.

 * 

 * Copyright (C) 2007-2020 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, see <https://www.gnu.org/licenses/>. 

 * 

 * 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.vcsgis.repository.remoteclient.requests;

import java.io.IOException;

import java.net.URL;

import java.util.ArrayList;

import java.util.List;

import javax.json.Json;

import javax.json.JsonArray;

import javax.json.JsonObject;

import javax.json.JsonReader;

import javax.json.JsonValue;

import org.apache.commons.io.IOUtils;

import org.apache.http.HttpEntity;

import org.apache.http.client.methods.CloseableHttpResponse;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.impl.client.CloseableHttpClient;

import org.apache.http.impl.client.HttpClients;

import org.apache.http.util.EntityUtils;

import org.gvsig.vcsgis.lib.EntityEditableImpl;

import org.gvsig.vcsgis.lib.VCSGisEntity;

import org.gvsig.vcsgis.lib.VCSGisEntityEditable;

import static org.gvsig.vcsgis.lib.VCSGisUtils.getErrorMessage;

import static org.gvsig.vcsgis.lib.client.VCSGisWorkspace.ERR_CANT_COMMIT;

import static org.gvsig.vcsgis.lib.client.VCSGisWorkspace.ERR_CANT_RETRIEVE_ENTITIES;

import static org.gvsig.vcsgis.lib.client.VCSGisWorkspace.ERR_NO_ERROR;

import static org.gvsig.vcsgis.lib.client.VCSGisWorkspace.ERR_OK;

import org.gvsig.vcsgis.lib.requests.AbstractVCSGisEntitiesRequest;

import org.gvsig.vcsgis.repository.remoteclient.VCSGisRepositoryClient;

/**

 *

 * @author gvSIG Team

 */

public class EntitiesRequestClient extends AbstractVCSGisEntitiesRequest {

    public EntitiesRequestClient(VCSGisRepositoryClient repository) {

        super(repository);

    }

    @Override

    protected VCSGisRepositoryClient getRepository() {

        return (VCSGisRepositoryClient) super.getRepository();

    }

    @Override

    public int execute() {

        URL url = this.getRepository().getUrl("entities");

        List<VCSGisEntity> theEntities = new ArrayList<>();

        CloseableHttpClient httpClient = null;

        CloseableHttpResponse response = null;

        try {

            httpClient = HttpClients.createDefault();

            HttpGet httpGet = new HttpGet(url.toString());

            response = httpClient.execute(httpGet);

            HttpEntity responseEntity = response.getEntity();

            JsonReader reader = Json.createReader(responseEntity.getContent());

            JsonObject jsonResponse = reader.readObject();

            EntityUtils.consumeQuietly(responseEntity);

            int statusCode = jsonResponse.getInt("StatusCode", ERR_CANT_COMMIT);

            if( statusCode!=ERR_OK ) {

                return error(

                        statusCode,

                        jsonResponse.getString("StatusMessage", getErrorMessage(statusCode))

                );

            }

            JsonArray jsonEntities = jsonResponse.getJsonArray("Entities");

            for (JsonValue x : jsonEntities) {

                VCSGisEntityEditable entity = new EntityEditableImpl();

                entity.fromJson((JsonObject) x);

                theEntities.add(entity);

            }

            this.entities = theEntities;

            return error(ERR_NO_ERROR);

        } catch (IOException ex) {

            LOGGER.warn("Can't retrieve entities from '"+url+"'.",ex);

            return error(ERR_CANT_RETRIEVE_ENTITIES, "Can't retrieve entities from '"+url+"'.");

        } finally {

            IOUtils.closeQuietly(response);

            IOUtils.closeQuietly(httpClient);

        }

    }

    @Override

    public void dispose() {

    }

}