org.eclipse.ui.wizards.datatransfer
Class SelectFilesOperation

java.lang.Object
  |
  +--org.eclipse.ui.wizards.datatransfer.SelectFilesOperation

All Implemented Interfaces:

IRunnableWithProgress

Direct Known Subclasses:

PopulateRootOperation

public class SelectFilesOperation

extends Object

implements IRunnableWithProgress

Operation responsible for traversing a specified file system position recursively and building - a tree that represents the container structure - a collection containing all files meeting a specified extension criteria This is implemented as an Operation in order to provide an escape to the user (the Cancel button) if the operation drags on for too long

Constructor Summary

SelectFilesOperation(Object rootObject, IImportStructureProvider structureProvider)
Creates a new SelectFilesOperation.

Method Summary

protected FileSystemElement	createElement(FileSystemElement parent, Object fileSystemObject) Creates and returns a FileSystemElement if the specified file system object merits one.
protected String	getExtensionFor(String filename) Returns the extension portion of the passed filename string.
FileSystemElement	getResult() Returns the resulting root file system element.
protected boolean	hasDesiredExtension(String filename) Returns a boolean indicating whether the extension of the passed filename is one of the extensions specified as desired by the filter.
void	run(IProgressMonitor monitor) Runs the operation.
void	setDesiredExtensions(String[] extensions) Sets the file extensions which are desired.

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectFilesOperation

public SelectFilesOperation(Object rootObject,
                            IImportStructureProvider structureProvider)

Creates a new SelectFilesOperation.

Method Detail

createElement

protected FileSystemElement createElement(FileSystemElement parent,
                                          Object fileSystemObject)
                                   throws InterruptedException

Creates and returns a FileSystemElement if the specified file system object merits one. The criteria for this are: - if the file system object is a container then it must have either a child container or an associated file - if the file system object is a file then it must have an extension suitable for selection

InterruptedException

getExtensionFor

protected String getExtensionFor(String filename)

Returns the extension portion of the passed filename string.

getResult

public FileSystemElement getResult()

Returns the resulting root file system element.

hasDesiredExtension

protected boolean hasDesiredExtension(String filename)

Returns a boolean indicating whether the extension of the passed filename is one of the extensions specified as desired by the filter.

run

public void run(IProgressMonitor monitor)
         throws InterruptedException

Runs the operation.

Specified by:

run in interface IRunnableWithProgress

Parameters:

monitor - the progress monitor to use to display progress and receive requests for cancelation

Throws:

InterruptedException - if the operation detects a request to cancel, using IProgressMonitor.isCanceled(), it should exit by throwing InterruptedException

See Also:

IRunnableContext.run(boolean, boolean, org.eclipse.jface.operation.IRunnableWithProgress)

setDesiredExtensions

public void setDesiredExtensions(String[] extensions)

Sets the file extensions which are desired. A value of null indicates that all files should be kept regardless of extension.