/*
* Copyright 2014 cruxframework.org.
*
* 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 org.cruxframework.crux.tools.codeserver.client;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.cruxframework.crux.core.client.Crux;
import org.cruxframework.crux.core.client.screen.Screen;
import org.cruxframework.crux.core.client.websocket.SocketCloseEvent;
import org.cruxframework.crux.core.client.websocket.SocketCloseHandler;
import org.cruxframework.crux.core.client.websocket.SocketErrorEvent;
import org.cruxframework.crux.core.client.websocket.SocketErrorHandler;
import org.cruxframework.crux.core.client.websocket.SocketMessageEvent;
import org.cruxframework.crux.core.client.websocket.SocketMessageHandler;
import org.cruxframework.crux.core.client.websocket.SocketOpenEvent;
import org.cruxframework.crux.core.client.websocket.SocketOpenHandler;
import org.cruxframework.crux.core.client.websocket.WebSocket;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.JsonUtils;
import com.google.gwt.logging.client.LogConfiguration;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.Label;
/**
*
* @author Thiago da Rosa de Bustamante
*
*/
public class CodeServerNotifier implements EntryPoint
{
public static final int DEFAULT_COMPILER_NOTIFIER_PORT = 9877;
private static Logger logger = Logger.getLogger(CodeServerNotifier.class.getName());
private DialogBox dialogBox;
private Label label;
@Override
public void onModuleLoad()
{
dialogBox = new DialogBox();
label = new Label();
dialogBox.add(label);
//TODO take the URL from user, as a parameter... if not provided, use the expression below as default
final String url = "ws://" + Window.Location.getHostName() + ":" + DEFAULT_COMPILER_NOTIFIER_PORT;
final WebSocket socket = WebSocket.createIfSupported(url);
if(socket == null)
{
logger.info("Browser do not support Websocket.");
return;
}
socket.addCloseHandler(new SocketCloseHandler()
{
@Override
public void onClose(SocketCloseEvent event)
{
logger.info("Compilation Notifier Socket was closed. Trying to reconnect...");
socket.reconnect();
}
});
socket.addOpenHandler(new SocketOpenHandler()
{
@Override
public void onOpen(SocketOpenEvent event)
{
if (LogConfiguration.loggingIsEnabled())
{
logger.log(Level.INFO, "Connected to Compilation Notifier service.");
}
}
});
socket.addErrorHandler(new SocketErrorHandler()
{
@Override
public void onError(SocketErrorEvent event)
{
if (LogConfiguration.loggingIsEnabled())
{
logger.log(Level.INFO, "Unexpected error on Compilation Notifier service socket.");
}
}
});
socket.addMessageHandler(new SocketMessageHandler()
{
@Override
public void onMessage(SocketMessageEvent event)
{
try
{
String message = event.getMessage();
CompilationMessage compilationMessage = JsonUtils.safeEval(message);
switch (compilationMessage.getOperation())
{
case START:
Screen.blockToUser();
label.setText("Compiling module "+compilationMessage.getModule()+"...");
dialogBox.center();
break;
case END:
Screen.unblockToUser();
dialogBox.hide();
label.setText(null);
if (compilationMessage.getStatus())
{
Window.Location.reload();
}
else
{
Crux.getErrorHandler().handleError("Error compiling module "+compilationMessage.getModule()+".");
}
break;
}
}
catch(Exception e)
{
Crux.getErrorHandler().handleError("Error parsing message from Compilation Notifier service", e);
}
}
});
}
}