Package org.codelibs.fess.job

Class GenerateThumbnailJob

java.lang.Object

org.codelibs.fess.job.ExecJob

org.codelibs.fess.job.GenerateThumbnailJob

public class GenerateThumbnailJob
extends ExecJob

Job class for generating thumbnails for documents in the search engine. This job executes the ThumbnailGenerator process as a separate JVM process to create thumbnail images for supported document types.

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	cleanup	Flag indicating whether to perform cleanup operations.
protected int	numOfThreads	Number of threads to use for thumbnail generation.

Fields inherited from class org.codelibs.fess.job.ExecJob

jobExecutor, jvmOptions, lastaEnv, logFilePath, logLevel, logSuffix, processTimeout, sessionId, timeout, useLocalFesen

Constructor Summary

Constructors

Constructor	Description
GenerateThumbnailJob()	Default constructor for the GenerateThumbnailJob.

Method Summary

Modifier and Type	Method	Description
GenerateThumbnailJob	cleanup()	Enables cleanup operations for this job.
String	execute()	Executes the job and returns the result as a string.
protected void	executeThumbnailGenerator()	Executes the thumbnail generator process.
protected String	getExecuteType()	Returns the execution type identifier for this job.
GenerateThumbnailJob	numOfThreads(int numOfThreads)	Sets the number of threads to use for thumbnail generation.

Methods inherited from class org.codelibs.fess.job.ExecJob

addFessConfigProperties, addFessCustomSystemProperties, addFessSystemProperties, addSystemProperty, appendJarFile, createSystemProperties, createTimeoutTask, deleteTempDir, execute, gcLogging, getLogName, jobExecutor, jvmOptions, lastaEnv, logFilePath, logLevel, logSuffix, remoteDebug, sessionId, timeout, useLocalFesen

Methods inherited from class java.lang.Object

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

Field Details

numOfThreads

protected int numOfThreads

Number of threads to use for thumbnail generation.

cleanup

protected boolean cleanup

Flag indicating whether to perform cleanup operations.

Constructor Details

GenerateThumbnailJob

public GenerateThumbnailJob()

Default constructor for the GenerateThumbnailJob.

Method Details

numOfThreads

public GenerateThumbnailJob numOfThreads(int numOfThreads)

Sets the number of threads to use for thumbnail generation.

Parameters:

numOfThreads - the number of threads

Returns:

this job instance for method chaining

cleanup

public GenerateThumbnailJob cleanup()

Enables cleanup operations for this job.

Returns:

this job instance for method chaining

execute

public String execute()

Description copied from class: ExecJob

Executes the job and returns the result as a string. This method contains the main business logic for the specific job implementation.

Specified by:

execute in class ExecJob

Returns:

the execution result message or summary

executeThumbnailGenerator

protected void executeThumbnailGenerator()

Executes the thumbnail generator process. Sets up the classpath, JVM options, and command line arguments to launch the ThumbnailGenerator in a separate process.

Throws:

JobProcessingException - if the thumbnail generation process fails

getExecuteType

protected String getExecuteType()

Description copied from class: ExecJob

Returns the execution type identifier for this job. This type is used for classpath construction, configuration, and logging purposes.

Specified by:

getExecuteType in class ExecJob

Returns:

the execution type (e.g., "crawler", "suggest", etc.)