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/*

 * 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.lib.repository.remoteclient.requests;

import java.io.BufferedReader;

import java.io.OutputStream;

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 static org.gvsig.vcsgis.lib.VCSGisManager.ERR_CANT_RETRIEVE_USERS;

import static org.gvsig.vcsgis.lib.VCSGisManager.ERR_OK;

import org.gvsig.vcsgis.lib.VCSGisUser;

import org.gvsig.vcsgis.lib.VCSGisUserImpl;

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

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

import org.gvsig.vcsgis.lib.repository.requests.VCSGisUsersRequest;

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

/**

 *

 * @author gvSIG Team

 */

public class UsersRequestClient extends AbstractRequestClient implements VCSGisUsersRequest {

    public UsersRequestClient(VCSGisRepositoryClient repository) {

        super(

                new UsersRequestHelper(repository),

                "users"

        );

    }

    @Override

    public UsersRequestHelper helper() {

        return (UsersRequestHelper) super.helper(); 

    }

    @Override

    public List<VCSGisUser> getUsers() {

        return helper().getUsers();

    }

    @Override

    public void requestProducer(OutputStream out) {

       error(ERR_OK);

    }

    @Override

    public void responseConsumer(BufferedReader inputData) {

        try {

            LOGGER.debug("===: ["+this.getRequestName()+"] responseConsumer");

            List<VCSGisUser> theUsers = new ArrayList<>();

            JsonReader reader = Json.createReader(inputData);

            JsonObject jsonResponse = reader.readObject();

            JsonObject jsonParameters = jsonResponse.getJsonObject("Parameters");

            int statusCode = jsonParameters.getInt("StatusCode", ERR_CANT_RETRIEVE_USERS);

            LOGGER.debug("===: ["+this.getRequestName()+"] responseConsumer status code "+statusCode);

            if( statusCode!=ERR_OK ) {

                error(

                        statusCode,

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

                );

                return;

            }

            JsonArray jsonUsers = jsonResponse.getJsonArray("Users");

            LOGGER.debug("===: ["+this.getRequestName()+"] responseConsumer user " + jsonUsers.size());

            for (JsonValue x : jsonUsers) {

                VCSGisUserImpl user = new VCSGisUserImpl((JsonObject) x);

                LOGGER.debug("===: ["+this.getRequestName()+"] responseConsumer user "+user.getIdentifier());

                theUsers.add(user);

            }

            helper().users = theUsers;

            LOGGER.debug("===: ["+this.getRequestName()+"] responseConsumer ok");

            error(ERR_OK);

        } catch (Exception ex) {

            LOGGER.warn("Can't retrieve users from '"+this.getRequestUrl()+"'.",ex);

            error(ERR_CANT_RETRIEVE_USERS, "Can't retrieve users from '"+this.getRequestUrl()+"'.");

        }

    }

}