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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.tuscany.sca.binding.websocket.runtime;
import java.io.IOException;
import java.util.UUID;
import org.eclipse.jetty.websocket.WebSocket;
/**
* A websocket connection handling communication between one browser client and
* *all* websocket services hosted by a server. The connection is persisted as
* long as the client is connected and communication with all services is
* multiplexed via a single websocket connection.
*/
public class TuscanyWebsocket implements WebSocket, WebSocket.OnTextMessage {
private String id;
private Connection connection;
private WebsocketBindingDispatcher dispatcher;
public TuscanyWebsocket(WebsocketBindingDispatcher dispatcher) {
this.dispatcher = dispatcher;
}
@Override
public void onOpen(Connection connection) {
this.connection = connection;
this.id = UUID.randomUUID().toString();
WebsocketConnectionManager.addConnection(this);
}
@Override
public void onMessage(String jsonRequest) {
WebsocketBindingMessage request = JSONUtil.decodeMessage(jsonRequest);
WebsocketServiceInvoker invoker = dispatcher.dispatch(request.getOperation());
if (invoker == null) {
throw new RuntimeException("No operation found for " + request.getOperation());
} else {
if (!invoker.isNonBlocking()) {
WebsocketBindingMessage response = invoker.invokeSync(request);
send(response);
} else {
invoker.invokeAsync(request, this);
}
}
}
@Override
public void onClose(int closeCode, String message) {
WebsocketConnectionManager.removeConnection(this);
}
public void send(WebsocketBindingMessage message) {
try {
if (connection.isOpen()) {
connection.sendMessage(JSONUtil.encodeMessage(message));
}
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public String getId() {
return id;
}
}
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