com.levigo.jadice.appbase.chooser

Class PreviewFileReader

java.lang.Object

com.levigo.jadice.appbase.chooser.PreviewFileReader

public class PreviewFileReader
extends Object

Reads files for previewing purposes. This class is intended to be called On-EDT. Reading processes are executed Off-EDT. This class expects previews to be created for one file at a time. Therefore, any previous read processes will be canceled before a new read process is started.

To ensure proper cleanup, shutdown() must be called before instances are discarded.

Constructor Summary

Constructors

Constructor and Description
PreviewFileReader()

Method Summary

Modifier and Type	Method and Description
protected ThreadPoolTaskService	createTaskService() Called at construction time to create the TaskService instance to be used by this class.
protected TaskExecutor<Void>	getTaskExecutorFrom(TaskService taskService) Called at construction time to retrieve the TaskExecutor to be used by thic class.
Document	read(File file)
protected void	shutdown() Clean-up resources allocated by this instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

PreviewFileReader

@CallOnEDT
public PreviewFileReader()

Method Detail

createTaskService

protected ThreadPoolTaskService createTaskService()

Called at construction time to create the TaskService instance to be used by this class.

Returns:

a new instance of ThreadPoolTaskService with core pool size 1 and maximum pool size 2.

getTaskExecutorFrom

protected TaskExecutor<Void> getTaskExecutorFrom(TaskService taskService)

Called at construction time to retrieve the TaskExecutor to be used by thic class.

Parameters:

taskService - the instance created by createTaskService()

Returns:

an instance of TaskExecutor retrieved from the given TaskService.

shutdown

protected void shutdown()

Clean-up resources allocated by this instance. Must be called when this instance is no longer needed. After calling this method, instances must no longer be used.

read

@CallOnEDT
public Document read(File file)