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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.filter; |
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package uk.org.iscream.filter; |
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//---IMPORTS--- |
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import java.io.*; |
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import java.net.*; |
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import java.util.*; |
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import uk.ac.ukc.iscream.core.*; |
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import uk.ac.ukc.iscream.componentmanager.*; |
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import uk.ac.ukc.iscream.filter.*; |
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import uk.ac.ukc.iscream.util.*; |
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import uk.org.iscream.core.*; |
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import uk.org.iscream.componentmanager.*; |
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import uk.org.iscream.filter.*; |
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import uk.org.iscream.util.*; |
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/** |
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* Handle an incoming packet as a separate thread. |
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* Constructs an instance of a FilterThread |
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* |
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* @param queue the Queue this filter is using |
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* @param parent a CORBA reference to our parent filter |
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*/ |
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public FilterThread(Queue queue, Filter parent){ |
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_parent = parent; |
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public FilterThread(Queue queue){ |
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// set the Thread name |
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setName("filter.FilterThread"); |
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_queue = queue; |
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_logger.write(toString(), Logger.SYSINIT, "created"); |
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} |
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* sending it on to the parent filter. |
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*/ |
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public void run(){ |
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// setup the XMLPacketMaker |
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XMLPacketMaker xmlPacketMaker = new XMLPacketMaker(); |
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// get a queue for ourselves |
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int n = _queue.getQueue(); |
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// keep these out here, saves recreating the object |
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} |
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// Use XMLPacketMaker to make an XMLPacket object. |
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XMLPacketMaker xmlPacketMaker = new XMLPacketMaker(xml); |
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XMLPacket packet = xmlPacketMaker.createXMLPacket(); |
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if(packet != null) { |
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// packet is not null |
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// packet was not dropped by a plugin |
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// ... best pass it on ! |
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if(PluginFilterManager.getInstance().runFilters(packet)) { |
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_parent.receiveXML(xml); |
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} |
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else { |
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// we filtered it |
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_logger.write(toString(), Logger.DEBUG, "An XML packet was sucessfully filtered from the system."); |
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} |
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XMLPacket packet = null; |
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try { |
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packet = xmlPacketMaker.createXMLPacket(xml); |
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} catch(InvalidXMLException e) { |
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_logger.write(toString(), Logger.ERROR, "Invalid XML: "+e); |
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// skip the rest of this loop iteration |
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continue; |
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} |
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// get parent |
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Filter parent; |
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try { |
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String parentFilterName = ConfigurationProxy.getInstance().getProperty(FilterMain.NAME, "Filter.parentFilter"); |
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parent = FilterHelper.narrow(_refman.getCORBARef("iscream.Filter." + parentFilterName)); |
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} catch (PropertyNotFoundException e) { |
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continue; |
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} |
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// XMLPacket is ok, run filters... |
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if(PluginFilterManager.getInstance().runFilters(packet)) { |
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// and pass it on... |
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parent.receiveXML(xml); |
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} |
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else { |
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// we had a null |
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_logger.write(toString(), Logger.DEBUG, "A packet containing ill-parsing XML was rejected."); |
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// ... or filtered it |
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_logger.write(toString(), Logger.DEBUG, "An XML packet was sucessfully filtered from the system."); |
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} |
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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.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 |
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//---ACCESSOR/MUTATOR METHODS--- |
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//---ATTRIBUTES--- |
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/** |
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* Our parent filter |
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*/ |
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Filter _parent; |
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/** |
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* The Queue object |
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* system logger that is being used. |
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*/ |
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private Logger _logger = ReferenceManager.getInstance().getLogger(); |
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/** |
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* A reference to the reference manager in use |
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*/ |
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private ReferenceManager _refman = ReferenceManager.getInstance(); |
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//---STATIC ATTRIBUTES--- |
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