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package org.glassfish.grizzly.http;

import org.glassfish.grizzly.Connection;
import org.glassfish.grizzly.http.util.Constants;
import org.glassfish.grizzly.monitoring.MonitoringAware;
import org.glassfish.grizzly.monitoring.MonitoringConfig;
import org.glassfish.grizzly.monitoring.DefaultMonitoringConfig;
import org.glassfish.grizzly.monitoring.MonitoringUtils;

/**
 * Web container configuration for keep-alive HTTP connections.
 * 
 * @author Alexey Stashok
 */
public final class KeepAlive implements MonitoringAware {
    /**
     * Keep alive probes
     */
    protected final DefaultMonitoringConfig monitoringConfig =
            new DefaultMonitoringConfig(KeepAliveProbe.class) {

        @Override
        public Object createManagementObject() {
            return createJmxManagementObject();
        }

    };
    
    /**
     * The number int seconds a connection may be idle before being timed out.
     */
    private int idleTimeoutInSeconds = Constants.KEEP_ALIVE_TIMEOUT_IN_SECONDS;

    /**
     * The max number of HTTP requests allowed to be processed on one keep-alive connection.
     */
    private int maxRequestsCount = Constants.DEFAULT_MAX_KEEP_ALIVE;

    public KeepAlive() {
    }

    /**
     * The copy constructor.
     * @param keepAlive
     */
    public KeepAlive(final KeepAlive keepAlive) {
        this.idleTimeoutInSeconds = keepAlive.idleTimeoutInSeconds;
        this.maxRequestsCount = keepAlive.maxRequestsCount;
    }


    /**
     * @return the number in seconds a connection may be idle before being
     *  timed out.
     */
    public int getIdleTimeoutInSeconds() {

        return idleTimeoutInSeconds;

    }


    /**
     * 

* Configures idle connection timeout behavior. *

* * @param idleTimeoutInSeconds the number in seconds a connection may * be idle before being timed out. Values less than zero are considered as FOREVER. */ public void setIdleTimeoutInSeconds(final int idleTimeoutInSeconds) { if (idleTimeoutInSeconds < 0) { this.idleTimeoutInSeconds = -1; } else { this.idleTimeoutInSeconds = idleTimeoutInSeconds; } } /** * @return the max number of HTTP requests allowed to be processed on one keep-alive connection. */ public int getMaxRequestsCount() { return maxRequestsCount; } /** *

* Configures the max number of HTTP requests allowed to be processed on one keep-alive connection. *

* * @param maxRequestsCount the max number of HTTP requests allowed to be * processed on one keep-alive connection. Values less than zero are considered as UNLIMITED. */ public void setMaxRequestsCount(int maxRequestsCount) { this.maxRequestsCount = maxRequestsCount; } /** * {@inheritDoc} */ @Override public MonitoringConfig getMonitoringConfig() { return monitoringConfig; } protected Object createJmxManagementObject() { return MonitoringUtils.loadJmxObject( "org.glassfish.grizzly.http.jmx.KeepAlive", this, KeepAlive.class); } /** * Notify registered {@link KeepAliveProbe}s about the "keep-alive connection accepted" event. * * @param keepAlive the KeepAlive event occurred on. * @param connection {@link Connection} been accepted. */ protected static void notifyProbesConnectionAccepted( final KeepAlive keepAlive, final Connection connection) { final KeepAliveProbe[] probes = keepAlive.monitoringConfig.getProbesUnsafe(); if (probes != null) { for (KeepAliveProbe probe : probes) { probe.onConnectionAcceptEvent(connection); } } } /** * Notify registered {@link KeepAliveProbe}s about the "keep-alive connection hit" event. * * @param keepAlive the KeepAlive event occurred on. * @param connection {@link Connection} been hit. * @param requestNumber the request number being processed on the given {@link Connection}. */ protected static void notifyProbesHit( final KeepAlive keepAlive, final Connection connection, final int requestNumber) { final KeepAliveProbe[] probes = keepAlive.monitoringConfig.getProbesUnsafe(); if (probes != null) { for (KeepAliveProbe probe : probes) { probe.onHitEvent(connection, requestNumber); } } } /** * Notify registered {@link KeepAliveProbe}s about the "keep-alive connection refused" event. * * @param keepAlive the KeepAlive event occurred on. * @param connection {@link Connection} been refused. */ protected static void notifyProbesRefused( final KeepAlive keepAlive, final Connection connection) { final KeepAliveProbe[] probes = keepAlive.monitoringConfig.getProbesUnsafe(); if (probes != null) { for (KeepAliveProbe probe : probes) { probe.onRefuseEvent(connection); } } } /** * Notify registered {@link KeepAliveProbe}s about the "keep-alive connection timeout" event. * * @param keepAlive the KeepAlive event occurred on. * @param connection {@link Connection} been timeout. */ protected static void notifyProbesTimeout( final KeepAlive keepAlive, final Connection connection) { final KeepAliveProbe[] probes = keepAlive.monitoringConfig.getProbesUnsafe(); if (probes != null) { for (KeepAliveProbe probe : probes) { probe.onTimeoutEvent(connection); } } } }




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