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.

 */

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

*

* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

*

* 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 2

* 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

*

* For more information, contact:

*

*  Generalitat Valenciana

*   Conselleria d'Infraestructures i Transport

*   Av. Blasco Ib??ez, 50

*   46010 VALENCIA

*   SPAIN

*

*      +34 963862235

*   gvsig@gva.es

*      www.gvsig.gva.es

*

*    or

*

*   IVER T.I. S.A

*   Salamanca 50

*   46005 Valencia

*   Spain

*

*   +34 963163400

*   dac@iver.es

*/

package org.gvsig.utils.swing.jcomboServer;

import javax.swing.JComboBox;

/**

 * This class is a user interface component that looks equal to

 * a JComboBox component, but it contains ServerData objects and 

 * it is able to show them in last access order.It has methods to 

 * add ServerData objects and to retrieve them.

 * 

 * @see java.swing.JComboBox

 * @see es.gva.cit.catalogClient.utils.comboserver.ServerData

 * @author Jorge Piera Llodra (piera_jor@gva.es)

 */

public class JComboServer extends JComboBox {

/**

 * Just a simple constructor

 * 

 */

    public  JComboServer() {        

        super();

    } 

/**

 * A constructor

 * 

 * 

 * @param servers Array with all the rervers to show

 */

    public  JComboServer(ServerData[] servers) {        

        super(setLastAccessOrder(servers));

    } 

/**

 * This method returns the selected server

 * 

 * 

 * @return A Server

 */

    public ServerData getSelectedServer() {        

        try {

            return (ServerData) getSelectedItem();

        }catch(ClassCastException e){

            return new ServerData((String)getSelectedItem(),"","");

        }

    } 

/**

 * This method adds a new Server in order

 * 

 * 

 * @param server New Server

 */

    public void addServer(ServerData server) {        

        ServerData[] servers = getAllServers();

        ServerData[] newServers = new ServerData[servers.length + 1];

        System.arraycopy(servers, 0, newServers, 0, servers.length);

        newServers[servers.length] = server;

        newServers = setLastAccessOrder(newServers);

        setServerList(newServers);

    } 

/**

 * This method returns an array with all the servers that the

 * combo contains

 * 

 * 

 * @return An array of servers

 */

    public ServerData[] getAllServers() {        

        ServerData[] servers = new ServerData[getItemCount()];

        for (int i=0 ; i<getItemCount() ; i++){

            servers[i] = (ServerData) this.getItemAt(i);

        }

        return servers;

    } 

/**

 * It adds a server list

 * 

 * 

 * @param servers Array with servers

 */

    public void setServerList(ServerData[] servers) {        

        removeAllItems();

        servers = setLastAccessOrder(servers);

        for (int i=0 ; i<servers.length ; i++){

           try{

                   if (!(servers[i].getServerAddress().equals(""))){

                           addItem(servers[i]);

                   }

           }catch(java.lang.NullPointerException e){

                   //Server is null

           }

        }

    } 

/**

 * This method order all the servers in the combo

 * 

 */

    public void setServersOrder() {        

        ServerData[] servers = getAllServers();

        servers = setLastAccessOrder(servers);

        setServerList(servers);

    } 

/**

 * This static method ordered an array of servers by last access

 * 

 * 

 * @return A new array

 * @param servers Array of servers

 */

    private static ServerData[] setLastAccessOrder(ServerData[] servers) {        

            ServerData[] orderedServerData = new ServerData[servers.length];

            for (int i=0 ; i<servers.length ; i++){

                int pos = getServerPosition(servers, i);

                orderedServerData[pos] = servers[i];

        }

            return orderedServerData;

    } 

/**

 * This static function return the ordered position of a server. The algorithm to

 * order can be changed.

 * 

 * 

 * @return Number with the new position

 * @param servers Array that contains all the servers

 * @param serverPos Server position

 */

    private static int getServerPosition(ServerData[] servers, int serverPos) {        

        int pos=0;

        for (int i=0 ; i<servers.length ; i++){

            if (!(servers[serverPos].getServerAddress().equals(servers[i].getServerAddress()))){

                if (servers[serverPos].getLastAccess().before(servers[i].getLastAccess())){

                    pos++;

                }

                if (servers[serverPos].getLastAccess().equals(servers[i].getLastAccess())){

                    if (serverPos < i){

                        pos++;

                    }

                }

            }

        }

        return pos;

    } 

 }