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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2012-2013 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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package org.glassfish.tyrus.container.grizzly;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Map;

import javax.websocket.ClientEndpointConfig;
import javax.websocket.DeploymentException;

import org.glassfish.tyrus.core.TyrusEndpoint;
import org.glassfish.tyrus.spi.SPIEndpoint;
import org.glassfish.tyrus.spi.SPIHandshakeListener;
import org.glassfish.tyrus.spi.SPIRegisteredEndpoint;
import org.glassfish.tyrus.spi.TyrusClientSocket;
import org.glassfish.tyrus.spi.TyrusContainer;
import org.glassfish.tyrus.spi.TyrusServer;
import org.glassfish.tyrus.websockets.WebSocketEngine;

import org.glassfish.grizzly.http.server.HttpServer;
import org.glassfish.grizzly.ssl.SSLEngineConfigurator;
import org.glassfish.grizzly.threadpool.ThreadPoolConfig;

/**
 * @author Danny Coward (danny.coward at oracle.com)
 */
public class GrizzlyEngine implements TyrusContainer {

    public static final String SSL_ENGINE_CONFIGURATOR = "org.glassfish.tyrus.client.sslEngineConfigurator";

    //The same value Grizzly is using for socket timeout.
    private static final long CLIENT_SOCKET_TIMEOUT = 30000;
    private final WebSocketEngine engine;

    /**
     * Creates Grizzly engine.
     */
    public GrizzlyEngine() {
        engine = WebSocketEngine.getEngine();
    }

    @Override
    public TyrusServer createServer(String rootPath, int port) {
        final HttpServer server = HttpServer.createSimpleServer(rootPath, port);
        server.getListener("grizzly").registerAddOn(new WebSocketAddOn());
        return new TyrusServer() {
            @Override
            public void start() throws IOException {
                server.start();
            }

            @Override
            public void stop() {
                server.stop();
            }

            @Override
            public SPIRegisteredEndpoint register(SPIEndpoint endpoint) throws DeploymentException {
                TyrusEndpoint ge = new TyrusEndpoint(endpoint);
                engine.register(ge);
                return ge;
            }

            @Override
            public void unregister(SPIRegisteredEndpoint ge) {
                engine.unregister((TyrusEndpoint) ge);
            }
        };
    }

    @Override
    public TyrusClientSocket openClientSocket(String url, ClientEndpointConfig cec, SPIEndpoint endpoint,
                                              SPIHandshakeListener listener, Map properties) {
        URI uri;

        try {
            uri = new URI(url);
        } catch (URISyntaxException e) {
            // TODO - report error
            return null;
        }

        GrizzlyClientSocket clientSocket = new GrizzlyClientSocket(endpoint, uri, cec, CLIENT_SOCKET_TIMEOUT, listener,
                properties == null ? null : (SSLEngineConfigurator) properties.get(SSL_ENGINE_CONFIGURATOR),
                properties == null ? null : (String) properties.get(GrizzlyClientSocket.PROXY_URI),
                properties == null ? null : (ThreadPoolConfig) properties.get(GrizzlyClientSocket.WORKER_THREAD_POOL_CONFIG),
                properties == null ? null : (ThreadPoolConfig) properties.get(GrizzlyClientSocket.SELECTOR_THREAD_POOL_CONFIG));
        clientSocket.connect();
        return clientSocket;
    }
}