cbr.agent
Class CCVIncubatorAgent

java.lang.Object
  de.fhg.igd.semoa.agent.RoundtripAgent
      cbr.agent.CCVIncubatorAgent

All Implemented Interfaces:

Runnable, Serializable

public class CCVIncubatorAgent

extends RoundtripAgent

This incubator agent hops off to a picture server and creates an index of feature vectors of the pictures it finds there. Then it registers a finder for pictures based on the extracted features. Indexing is done according to the 'Color Coherence Vector' scheme published by Pass et al.

The property hop.final must point to the destination server where pictures are indexed and the finder service shall be registered.

The path of the PicsFinder that shall be registered, and the path of the local PicsSource must be configured in the agent's properties.

The properties are:

hop.final = <URL>

The destination server's URL.

finder = <string>

The path where the PicsFinder is expected to be published.

pics = <string>

The path here the PicsSource is expected to be published.

Version:

"$Id: CCVIncubatorAgent.java 1913 2007-08-08 02:41:53Z jpeters $"

Author:

Patric Kabus, Volker Roth

See Also:

Serialized Form

Field Summary

static String	NAME_IDX The name of the index file.
static String	NAME_TMP The name of the temporary index file.

Fields inherited from class de.fhg.igd.semoa.agent.RoundtripAgent

debug_, env_, MAX_RETRIES, mob_, start_, time_, vars_

Constructor Summary

CCVIncubatorAgent()

Method Summary

protected void	finish() This method locates the local PicsSource and creates an index of feature vectors for the pictures returned by it.
protected void	perform() This method just prints a short message indicating the current hop.

Methods inherited from class de.fhg.igd.semoa.agent.RoundtripAgent

getHopNumber, onRunning, run

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NAME_IDX

public static final String NAME_IDX

The name of the index file.

See Also:

Constant Field Values

NAME_TMP

public static final String NAME_TMP

The name of the temporary index file.

See Also:

Constant Field Values

Constructor Detail

CCVIncubatorAgent

public CCVIncubatorAgent()

Method Detail

perform

protected void perform()
                throws Exception

This method just prints a short message indicating the current hop. This agent does meaningful work only at its destination.

Overrides:

perform in class RoundtripAgent

Throws:

Exception - if something's wrong.

finish

protected void finish()
               throws Exception

This method locates the local PicsSource and creates an index of feature vectors for the pictures returned by it. The the agent registers a PicsFinder service that can be used by other agents in order to search pictures based on examples or feature vectors. Some properties must be set for the agent to perform correctly.

The path where the PicsFinder that shall be registered, and the path to the local PicsSource must be configured in the agent's properties.

The properties are:

finder = <string>

The path where the PicsFinder is expected to be published.

pics = <string>

The path where the PicsSource is expected to be published.

Overrides:

finish in class RoundtripAgent

Throws:

if - somethong's wrong.

Exception