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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.filter.plugins; |
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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.util.XMLPacket; |
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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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* |
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* @author $Author$ |
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* @version $Id$ |
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*/ |
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public class EnforceEssentialData__Plugin implements PluginFilter { |
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//---FINAL ATTRIBUTES--- |
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/** |
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* The current CVS revision of this class |
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*/ |
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public final String REVISION = "$Revision: 1.1 $"; |
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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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//---STATIC METHODS--- |
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//---CONSTRUCTORS--- |
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//---PUBLIC METHODS--- |
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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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// return false if any of the essential data is not present. |
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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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return false; |
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} |
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// otherwise return true! |
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return true; |
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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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* @return the name of this class and its CVS revision |
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*/ |
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public String toString() { |
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return this.getClass().getName() + "(" + REVISION.substring(11, REVISION.length() - 2) + ")"; |
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} |
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// return the String representation of what the filter does |
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public String getDescription(){ |
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return DESC; |
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} |
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//---PRIVATE METHODS--- |
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//---ACCESSOR/MUTATOR METHODS--- |
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//---ATTRIBUTES--- |
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//---STATIC ATTRIBUTES--- |
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} |
