UDPConnectionPanel.java

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/*******************************************************************************
 * Copyright 2010 Neuron Robotics, LLC
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package com.neuronrobotics.sdk.ui;
 
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.InetAddress;
import java.util.ArrayList;
 
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
 
import net.miginfocom.swing.MigLayout;
 
import com.neuronrobotics.sdk.common.BowlerAbstractConnection;
import com.neuronrobotics.sdk.network.UDPBowlerConnection;
import com.neuronrobotics.sdk.util.IMonitorable;
import com.neuronrobotics.sdk.util.IProgressMonitorListener;
import com.neuronrobotics.sdk.util.ProcessMonitor;
 
// TODO: Auto-generated Javadoc
public class UDPConnectionPanel extends AbstractConnectionPanel {
 
    private static final long serialVersionUID = 1L;
    
    private static final int defaultPortNum = 1865;
    
    private JComboBox connectionCbo = null;
    
    private JButton refresh;
    
    private JTextField port = new JTextField(8);
    
    UDPBowlerConnection clnt=null;
    
    
    public UDPConnectionPanel(ConnectionDialog connectionDialog) {
        super("UDP",ConnectionImageIconFactory.getIcon("images/ethernet-icon.png"),connectionDialog);
        
        
        port.setText(new Integer(defaultPortNum).toString());
        
        setLayout(new MigLayout("", // Layout Constraints
                                "[right][left]", // Column constraints with default align
                                "[center][center]"  // Row constraints with default align
                               ));
 
        add(new JLabel("Server:"), "cell 0 0");
        connectionCbo = new JComboBox();
        connectionCbo.setEditable(true);
        connectionCbo.addItem("none");
        add(connectionCbo);
        refresh = new JButton("Refresh");
        refresh.addActionListener(new ActionListener() {
            
            public void actionPerformed(ActionEvent arg0) {
                refresh();
            }
        });
        add(refresh);
        
        add(new JLabel("Port:"), "cell 0 1");
        add(port, "cell 1 1");
        
        //refresh();
    }
 
    
    /* (non-Javadoc)
     * @see com.neuronrobotics.sdk.ui.AbstractConnectionPanel#getConnection()
     */
    public BowlerAbstractConnection getConnection() {
        try {
            int baud = Integer.parseInt(port.getText());
            if(baud < 0) {
                throw new NumberFormatException();
            }
            String address =connectionCbo.getSelectedItem().toString().trim();
            clnt.setAddress(address);
            setVisible(false);
            return clnt;
        } catch(NumberFormatException e) {
            JOptionPane.showMessageDialog(null, "Invalid port given.", "Invalid port", JOptionPane.ERROR_MESSAGE);
        } catch(RuntimeException e) {
            JOptionPane.showMessageDialog(null, "Invalid address given.", "Invalid address", JOptionPane.ERROR_MESSAGE);
        } finally {
            setVisible(false);
        }
        return null;
    }
 
    
    /* (non-Javadoc)
     * @see com.neuronrobotics.sdk.ui.AbstractConnectionPanel#refresh()
     */
    public void refresh() {
        connectionCbo.removeAllItems();
        connectionCbo.addItem("Searching...");
        connectionCbo.setEnabled(false);
        
        port.setEnabled(false);
        
        refresh.setEnabled(false);
        
        NetworkSearchProcess nsp = new NetworkSearchProcess();
        
        ProcessMonitor pm = new ProcessMonitor(nsp);
        pm.addProcessMonitorListener(new IProgressMonitorListener() {
            
            
            public void onUpdate(double value) {
                // TODO Auto-generated method stub
                
            }
            
            
            public void onComplete() {
                connectionCbo.setEnabled(true);
                port.setEnabled(true);
                refresh.setEnabled(true);
            }
        });
        
        pm.start();
        nsp.start();    
        getConnectionDialog().pack();
    }
    
    private class NetworkSearchProcess extends Thread implements IMonitorable {
        
        private boolean isRunning = false;
        
        /* (non-Javadoc)
         * @see java.lang.Thread#run()
         */
        public void run() {
            setName("Bowler Platform UDP searcher");
            isRunning = true;
            //System.out.println("Searching for UDP devices, please wait...");
            int prt;
            try {
                prt=new Integer(port.getText());
            }catch (NumberFormatException e) {
                prt=defaultPortNum;
                port.setText(new Integer(defaultPortNum).toString());
            }
            clnt=new UDPBowlerConnection(prt);
            ArrayList<InetAddress>  addrs = clnt.getAllAddresses();
//          if (addrs.size()>0)
//              System.out.println("Bowler servers: "+addrs);
            connectionCbo.removeAllItems();
            for (InetAddress i:addrs) {
                connectionCbo.addItem(i.getHostAddress());
            }
            if(addrs.size() ==0 )
                connectionCbo.addItem("No Servers Found");
            
            isRunning = false;
        }
        
        /* (non-Javadoc)
         * @see com.neuronrobotics.sdk.util.IMonitorable#getPercentage()
         */
        public double getPercentage() {
            return 0;
        }
        
        /* (non-Javadoc)
         * @see com.neuronrobotics.sdk.util.IMonitorable#isComplete()
         */
        public boolean isComplete() {
            return !isRunning;
        }
    }
}