/*******************************************************************************
* Copyright (c) 2011 Subgraph.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Subgraph - initial API and implementation
******************************************************************************/
package com.subgraph.vega.ui.http.preferencepage;
import java.net.InetAddress;
import java.net.UnknownHostException;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import com.subgraph.vega.api.http.proxy.IHttpProxyListenerConfig;
import com.subgraph.vega.ui.http.Activator;
import com.subgraph.vega.ui.util.dialogs.ErrorDialog;
public class ListenerAddressDialog extends Dialog {
private ProxyListenerPreferencePage page;
private Composite parentComposite;
private Text ipAddress;
private Text port;
private int portNum;
private InetAddress inetAddress;
public ListenerAddressDialog(Shell parent, ProxyListenerPreferencePage page) {
super(parent);
this.page = page;
}
protected void configureShell(Shell shell) {
super.configureShell(shell);
shell.setText("Add Listen Address");
}
@Override
protected Control createDialogArea(Composite parent) {
parentComposite = (Composite) super.createDialogArea(parent);
createFields(parentComposite);
return parentComposite;
}
@Override
protected void okPressed() {
if (parseInput() == true) {
super.okPressed();
}
}
private Composite createFields(Composite parent) {
Composite rootControl = new Composite(parent, SWT.NONE);
rootControl.setLayout(new GridLayout(2, true));
Label label = new Label(rootControl, SWT.NONE);
label.setText("IP Address:");
label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
ipAddress = new Text(rootControl, SWT.BORDER);
// ipAddress.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
ipAddress.addListener(SWT.Verify, new Listener() {
public void handleEvent(Event e) {
String string = e.text;
char[] chars = new char[string.length()];
string.getChars(0, chars.length, chars, 0);
for (int i = 0; i < chars.length; i++) {
if (!('0' <= chars[i] && chars[i] <= '9') && chars[i] != '.') {
e.doit = false;
return;
}
}
}
});
label = new Label(rootControl, SWT.NONE);
label.setText("Port:");
label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
port = new Text(rootControl, SWT.BORDER);
port.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
port.addListener(SWT.Verify, new Listener() { // REVISIT: should create a helper method for this
public void handleEvent(Event e) {
String string = e.text;
char[] chars = new char[string.length()];
string.getChars(0, chars.length, chars, 0);
for (int i = 0; i < chars.length; i++) {
if (!('0' <= chars[i] && chars[i] <= '9')) {
e.doit = false;
return;
}
}
}
});
return rootControl;
}
public IHttpProxyListenerConfig getConfig() {
final IHttpProxyListenerConfig listenerConfig = Activator.getDefault().getProxyService().createListenerConfig();
listenerConfig.setInetAddress(inetAddress);
listenerConfig.setPort(portNum);
return listenerConfig;
}
private boolean parseInput() {
try {
inetAddress = InetAddress.getByName(ipAddress.getText());
} catch (UnknownHostException e) {
ErrorDialog.displayError(getShell(), "Invalid IP address");
return false;
}
try {
portNum = Integer.parseInt(port.getText());
} catch (NumberFormatException e) {
ErrorDialog.displayError(getShell(), "Invalid port: must be between 1 and 65535");
return false;
}
if (portNum < 1 || portNum > 65535) {
ErrorDialog.displayError(getShell(), "Invalid port: must be between 1 and 65535");
return false;
}
if (page.hasListener(inetAddress, portNum) == true) {
ErrorDialog.displayError(getShell(), "IP address/port combination is already registered");
return false;
}
return true;
}
}