/* * 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.zeppelin.socket; import java.io.IOException; import javax.servlet.http.HttpServletRequest; import org.apache.commons.lang.StringUtils; import org.eclipse.jetty.websocket.api.Session; import org.eclipse.jetty.websocket.api.WebSocketAdapter; /** * Notebook websocket */ public class NotebookSocket extends WebSocketAdapter { private Session connection; private NotebookSocketListener listener; private HttpServletRequest request; private String protocol; private String user; public NotebookSocket(HttpServletRequest req, String protocol, NotebookSocketListener listener) { this.listener = listener; this.request = req; this.protocol = protocol; this.user = StringUtils.EMPTY; } @Override public void onWebSocketClose(int closeCode, String message) { listener.onClose(this, closeCode, message); } @Override public void onWebSocketConnect(Session connection) { this.connection = connection; listener.onOpen(this); } @Override public void onWebSocketText(String message) { listener.onMessage(this, message); } public HttpServletRequest getRequest() { return request; } public String getProtocol() { return protocol; } public synchronized void send(String serializeMessage) throws IOException { connection.getRemote().sendString(serializeMessage); } public String getUser() { return user; } public void setUser(String user) { this.user = user; } }