BasicWebSocketEndpoint.java

/*******************************************************************************
 * Copyright (c) 2012-2017 Codenvy, S.A.
 * 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:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.ide.websocket.impl;

import org.eclipse.che.ide.util.loging.Log;

import javax.inject.Inject;
import javax.inject.Singleton;

/**
 * Duplex WEB SOCKET endpoint, handles messages, errors, session open/close events.
 *
 * @author Dmitry Kuleshov
 */
@Singleton
public class BasicWebSocketEndpoint implements WebSocketEndpoint {
    private final WebSocketConnectionSustainer sustainer;
    private final MessagesReSender             reSender;
    private final WebSocketDispatcher          dispatcher;

    @Inject
    public BasicWebSocketEndpoint(WebSocketConnectionSustainer sustainer, MessagesReSender reSender, WebSocketDispatcher dispatcher) {
        this.sustainer = sustainer;
        this.reSender = reSender;
        this.dispatcher = dispatcher;
    }

    @Override
    public void onOpen(String url) {
        Log.debug(getClass(), "Session opened.");

        sustainer.reset(url);
        reSender.reSend(url);
    }

    @Override
    public void onClose(String url) {
        Log.debug(getClass(), "Session closed.");

        sustainer.sustain(url);
    }

    @Override
    public void onError(String url) {
        Log.warn(getClass(), "Error occurred for endpoint " + url);
    }

    @Override
    public void onMessage(String url, String message) {
        Log.debug(getClass(), "Message received: " + message);

        dispatcher.dispatch(url, message);
    }
}