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 /*  | 
 
 
 
 
 
 
 
 
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  * i-scream central monitoring system | 
 
 
 
 
 
 
 
 
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  * Copyright (C) 2000-2002 i-scream | 
 
 
 
 
 
 
 
 
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  *  | 
 
 
 
 
 
 
 
 
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  * This program is free software; you can redistribute it and/or | 
 
 
 
 
 
 
 
 
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  * modify it under the terms of the GNU General Public License | 
 
 
 
 
 
 
 
 
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  * as published by the Free Software Foundation; either version 2 | 
 
 
 
 
 
 
 
 
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  * of the License, or (at your option) any later version. | 
 
 
 
 
 
 
 
 
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  *  | 
 
 
 
 
 
 
 
 
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  * This program is distributed in the hope that it will be useful, | 
 
 
 
 
 
 
 
 
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  * but WITHOUT ANY WARRANTY; without even the implied warranty of | 
 
 
 
 
 
 
 
 
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  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
 
 
 
 
 
 
 
 
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  * GNU General Public License for more details. | 
 
 
 
 
 
 
 
 
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  *  | 
 
 
 
 
 
 
 
 
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  * You should have received a copy of the GNU General Public License | 
 
 
 
 
 
 
 
 
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  * along with this program; if not, write to the Free Software | 
 
 
 
 
 
 
 
 
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  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. | 
 
 
 
 
 
 
 
 
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  */ | 
 
 
 
 
 
 
 
 
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  | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 //---PACKAGE DECLARATION--- | 
 
 
 
 
 
 
 
 
 
 
 
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 package uk.ac.ukc.iscream.filter.plugins; | 
 
 
 
 
 
 
 
 
 
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 package uk.org.iscream.cms.server.filter.plugins; | 
 
 
 
 
 
 
 
 
 
 
 
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  | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 //---IMPORTS--- | 
 
 
 
 
 
 
 
 
 
 
 
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 import uk.ac.ukc.iscream.filter.PluginFilter; | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 import uk.ac.ukc.iscream.filter.*; | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 import uk.ac.ukc.iscream.core.*; | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 import uk.ac.ukc.iscream.util.*; | 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 import uk.org.iscream.cms.server.filter.PluginFilter; | 
 
 
 
 
 
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 import uk.org.iscream.cms.server.filter.*; | 
 
 
 
 
 
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 import uk.org.iscream.cms.server.core.*; | 
 
 
 
 
 
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 import uk.org.iscream.cms.server.util.*; | 
 
 
 
 
 
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 import uk.org.iscream.cms.server.componentmanager.*; | 
 
 
 
 
 
 
 
 
 
 
 
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  | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 /** | 
 
 
 
 
 
 
 
 
 
 
 
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  * A first plugin! ;-) | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  * this one rejects packets that do not contain all of the 'essential' data. | 
 
 
 
 
 
 
 
 
 
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  * This plugin rejects packets that do not | 
 
 
 
 
 
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  * contain all of the 'essential' data. | 
 
 
 
 
 
 
 
 
 
 
 
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  * | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  * @author  $Author$ | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  * @version $Id$ | 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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      */ | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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     public final String REVISION = "$Revision$"; | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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      | 
 
 
 
 
 
 
 
 
 
 
 
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     public final String DESC = "Rejects packets that do not have an ip, machine_name, seq_no and date specified as attributes of the root packet tag."; | 
 
 
 
 
 
 
 
 
 
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     public final String DESC = "Rejects packets that do not have an ip, machine_name, seq_no, date and type specified as attributes of the root packet tag."; | 
 
 
 
 
 
 
 
 
 
 
 
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      | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 //---STATIC METHODS--- | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  | 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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     // apply the filter and return true if successful. | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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     public boolean runFilter(XMLPacket packet){ | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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          | 
 
 
 
 
 
 
 
 
 
 
 
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         // return false if any of the essential data is not present. | 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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         // return true if a heartbeat packet seems ok | 
 
 
 
 
 
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         if (packet.getParam("packet.attributes.type").equals("heartbeat") | 
 
 
 
 
 
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                 && packet.getParam("packet.attributes.date") != null | 
 
 
 
 
 
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                 && packet.getParam("packet.attributes.ip") != null | 
 
 
 
 
 
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                 && packet.getParam("packet.attributes.machine_name") != null){ | 
 
 
 
 
 
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             return true; | 
 
 
 
 
 
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         } | 
 
 
 
 
 
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          | 
 
 
 
 
 
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         // return true if a queueStat packet seems ok | 
 
 
 
 
 
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         if (packet.getParam("packet.attributes.type").equals("queueStat") | 
 
 
 
 
 
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                 && packet.getParam("packet.attributes.date") != null | 
 
 
 
 
 
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                 && packet.getParam("packet.attributes.name") != null){ | 
 
 
 
 
 
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             return true; | 
 
 
 
 
 
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         } | 
 
 
 
 
 
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          | 
 
 
 
 
 
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         // return false if any of the essential data is not present | 
 
 
 
 
 
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         // in a "data" packet | 
 
 
 
 
 
 
 
 
 
 
 
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         if (packet.getParam("packet.attributes.machine_name") == null | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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                 || packet.getParam("packet.attributes.ip") == null | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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                 || packet.getParam("packet.attributes.seq_no") == null | 
 
 
 
 
 
 
 
 
 
 
 
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                 || packet.getParam("packet.attributes.date") == null){ | 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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                 || packet.getParam("packet.attributes.date") == null | 
 
 
 
 
 
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                 || packet.getParam("packet.attributes.type") == null){ | 
 
 
 
 
 
 
 
 
 
 
 
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             return false; | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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         } | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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          | 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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      * Overrides the {@link java.lang.Object#toString() Object.toString()} | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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      * method to provide clean logging (every class should have this). | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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      * | 
 
 
 
 
 
 
 
 
 
 
 
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      * This uses the uk.ac.ukc.iscream.util.NameFormat class | 
 
 
 
 
 
 
 
 
 
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      * This uses the uk.org.iscream.cms.server.util.NameFormat class | 
 
 
 
 
 
 
 
 
 
 
 
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      * to format the toString() | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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      * | 
 
 
 
 
 
 
 
 
 
 
 
 
 
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      * @return the name of this class and its CVS revision |