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package org.gander.core.packet;import org.gander.core.Session;/** * @author Gander * @Date: 10-Feb-2008 * @Time: 16:59:20. */public class PacketThrottleFilter {    public PacketThrottleFilter() {        this.lastPacketRecieved = System.currentTimeMillis();        this.setThrottleDelay(1500); // 1.5 seconds    }    /**     * Check's if the packet      * @param id the packetID to be nested     * @return  true if the delay is less than <code>throttleDelay</code>     */    public boolean packetThrottled(int id) {        if(id != this.lastPacketID && this.lastPacketID != 0) {            return false;        }        boolean foundPacket = false;        for(int i = 0; i < throttleFilters.length; i++){            if(throttleFilters[i] == id) {                foundPacket = true;                break;            }        }        if(!foundPacket) {            return foundPacket;         }        int check = (int)(System.currentTimeMillis() - this.lastPacketRecieved);        if(check < this.throttleDelay) {            return true;        }        this.lastPacketID = id;        this.lastPacketRecieved = System.currentTimeMillis();            return false;    }    /**     * Set's the Delay to the parameter     * @param delay the delay to set the ThrottleDelay to the <code>delay</code>     */    public void setThrottleDelay(int delay) {        this.throttleDelay = delay;    }    /**     * Get's the last packet time     * @return the last packet Time     */    public long getLastPacketTime(){        return this.lastPacketRecieved;    }    /**     * Gets the Throttle delay     * @return  An integer representing the Throttle delay <code>ThrottleDelay</code     */    public int getThrottledDelay() {        return this.throttleDelay;    }   private static final int[] throttleFilters = {185, 4, 103, 132, 252, 41, 145, 72, 122, 181, 87, 155, 192, 236, 73};   private long lastPacketRecieved;   private int throttleDelay = 0;   private int lastPacketID = 0;}