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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.rootfilter; |
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//---IMPORTS--- |
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import uk.ac.ukc.iscream.core.*; |
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tdb |
1.4 |
import uk.ac.ukc.iscream.componentmanager.*; |
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tdb |
1.1 |
import uk.ac.ukc.iscream.clientinterface.*; |
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import uk.ac.ukc.iscream.util.*; |
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/** |
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* A ClientInterface wrapper - the CI objects are pushed data, |
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* yet data is pulled from the queue. This will sit inbetween |
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* for now, until the CI design is changed. |
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* |
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tdb |
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* @author $Author: tdb1 $ |
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tdb |
1.1 |
* @version $Id $ |
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*/ |
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public class CIWrapper extends Thread { |
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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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tdb |
1.4 |
public final String REVISION = "$Revision: 1.3 $"; |
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tdb |
1.1 |
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//---STATIC METHODS--- |
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//---CONSTRUCTORS--- |
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/** |
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* Sets up the wrapper, with a single destination and a queue. |
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* |
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* @param destination the client interface to send the xml to |
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* @param queue a reference to a queue to use |
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*/ |
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public CIWrapper(ClientInterface destination, Queue queue){ |
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_destination = destination; |
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_queue = queue; |
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} |
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//---PUBLIC METHODS--- |
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/** |
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* start the thread and thus gets and sends data |
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*/ |
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public void run() { |
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int n = _queue.getQueue(); |
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tdb |
1.3 |
String xml = null; |
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1.1 |
while(true) { |
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try { |
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1.2 |
xml = (String) _queue.get(n); |
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1.1 |
} |
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catch (InvalidQueueException e) { |
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_logger.write(toString(), Logger.ERROR, "Queue error: "+e); |
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} |
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_destination.receiveXML(xml); |
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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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* @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() + "{" + _name + "}(" + REVISION.substring(11, REVISION.length() - 2) + ")"; |
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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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/** |
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* A reference to a Queue object. |
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*/ |
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private Queue _queue; |
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/** |
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* the interface this thread is sending data to |
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*/ |
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private ClientInterface _destination; |
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/** |
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* This is the friendly identifier of the |
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* component this class is running in. |
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* eg, a Filter may be called "filter1", |
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* If this class does not have an owning |
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* component, a name from the configuration |
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* can be placed here. This name could also |
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* be changed to null for utility classes. |
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*/ |
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private String _name = RootFilter.NAME; |
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/** |
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* This holds a reference to the |
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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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//---STATIC ATTRIBUTES--- |
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} |
