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/*
 * Copyright (c) 2011, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.grizzly.websockets;

import org.glassfish.grizzly.filterchain.FilterChainBuilder;
import org.glassfish.grizzly.http.server.AddOn;
import org.glassfish.grizzly.http.server.HttpServer;
import org.glassfish.grizzly.http.server.HttpServerFilter;
import org.glassfish.grizzly.http.server.NetworkListener;

/**
 * WebSockets {@link AddOn} for the {@link HttpServer}.
 *
 * @author Alexey Stashok
 */
public class WebSocketAddOn implements AddOn {

    private long timeout = 15 * 60;

    // ------------------------------------------------------ Methods from Addon

    /**
     * {@inheritDoc}
     */
    @Override
    public void setup(NetworkListener networkListener, FilterChainBuilder builder) {
        // Get the index of HttpServerFilter in the HttpServer filter chain
        final int httpServerFilterIdx = builder.indexOfType(HttpServerFilter.class);

        if (httpServerFilterIdx >= 0) {
            // Insert the WebSocketFilter right before HttpServerFilter
            builder.add(httpServerFilterIdx, createWebSocketFilter());
        }
    }

    // ---------------------------------------------------------- Public Methods

    public long getTimeoutInSeconds() {
        return timeout;
    }

    public void setTimeoutInSeconds(long timeout) {
        this.timeout = timeout;
    }

    protected WebSocketFilter createWebSocketFilter() {
        return new WebSocketFilter(timeout);
    }
}