ome.formats.importer

Class ImportCandidates

java.lang.Object

org.apache.commons.io.DirectoryWalker

ome.formats.importer.ImportCandidates

public class ImportCandidates
extends org.apache.commons.io.DirectoryWalker

Utility class which given any File object will determine the correct number and members of a given import. This facility permits iterating over a directory. This class is NOT thread-safe.

Since:

Beta4.1

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ImportCandidates.CANCEL Marker exception raised if the ImportCandidates.SCANNING.cancel() method is called by an IObserver instance.
static class	ImportCandidates.SCANNING Event raised during a pass through the directory structure given to ImportCandidates.

Nested classes/interfaces inherited from class org.apache.commons.io.DirectoryWalker

org.apache.commons.io.DirectoryWalker.CancelException

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEPTH
static MetadataLevel	METADATA_LEVEL

Constructor Summary

Constructors

Constructor and Description
ImportCandidates(int depth, OMEROWrapper reader, String[] paths, IObserver observer) Main constructor which starts depth-first descent into all the paths and permits a descent to the given depth.
ImportCandidates(OMEROWrapper reader, String[] paths, IObserver observer) Calls ImportCandidates(int, OMEROWrapper, String[], IObserver) with DEPTH as the first argument.

Method Summary

Modifier and Type	Method and Description
protected void	execute(String[] paths) Method called during ImportCandidates(OMEROWrapper, String[], IObserver) to operate on all the given paths.
List<ImportContainer>	getContainers()
List<String>	getPaths()
String	getReaderType(String path) Retrieve reader type for file specified in path
String[]	getUsedFiles(String path) Return string of files used by container item at path
void	handleFile(File file, int depth, Collection collection) Handle a file import
void	print() Prints the "standard" representation of the groups, which is parsed by other software layers.
protected ImportContainer	singleFile(File file, ImportConfig config) Return an import container for a single file
int	size()
boolean	wasCancelled()

Methods inherited from class org.apache.commons.io.DirectoryWalker

checkIfCancelled, handleCancelled, handleDirectory, handleDirectoryEnd, handleDirectoryStart, handleEnd, handleIsCancelled, handleRestricted, handleStart, walk

Methods inherited from class java.lang.Object

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

Field Detail

DEPTH

public static final int DEPTH

METADATA_LEVEL

public static final MetadataLevel METADATA_LEVEL

Constructor Detail

ImportCandidates

public ImportCandidates(OMEROWrapper reader,
                        String[] paths,
                        IObserver observer)

Calls ImportCandidates(int, OMEROWrapper, String[], IObserver) with DEPTH as the first argument.

Parameters:

reader - instance used for parsing each of the paths. Not used once the constructor completes.

paths - file paths which are searched. May be directories.

observer - IObserver which will monitor any exceptions during ReaderWrapper.setId(String). Otherwise no error reporting takes place.

ImportCandidates

public ImportCandidates(int depth,
                        OMEROWrapper reader,
                        String[] paths,
                        IObserver observer)

Main constructor which starts depth-first descent into all the paths and permits a descent to the given depth.

Parameters:

depth - number of directory levels to search down.

reader - instance used for parsing each of the paths. Not used once the constructor completes.

paths - file paths which are searched. May be directories.

observer - IObserver which will monitor any exceptions during ReaderWrapper.setId(String). Otherwise no error reporting takes place.

Method Detail

print

public void print()

Prints the "standard" representation of the groups, which is parsed by other software layers. The format is: 1) any empty lines are ignored, 2) any blocks of comments separate groups, 3) each group is begun by the "key", 4) all other files in a group will also be imported. The ordering of the used files is taken into account.

size

public int size()

Returns:

containers size

wasCancelled

public boolean wasCancelled()

Returns:

if import was cancelled

getPaths

public List<String> getPaths()

Returns:

array of string paths for files in containers

getReaderType

public String getReaderType(String path)

Retrieve reader type for file specified in path

Parameters:

path - - absolute path for container

Returns:

reader type

getUsedFiles

public String[] getUsedFiles(String path)

Return string of files used by container item at path

Parameters:

path - - absolute path for container

Returns:

string array of used files

getContainers

public List<ImportContainer> getContainers()

Returns:

all containers as an array list

execute

protected void execute(String[] paths)

Method called during ImportCandidates(OMEROWrapper, String[], IObserver) to operate on all the given paths. This will be called twice: once without reading the files, and once (with the known total) using reader

Parameters:

paths -

singleFile

protected ImportContainer singleFile(File file,
                                     ImportConfig config)

Return an import container for a single file

Parameters:

file - - single file

Returns:

importer container

handleFile

public void handleFile(File file,
                       int depth,
                       Collection collection)

Handle a file import

Overrides:

handleFile in class org.apache.commons.io.DirectoryWalker

Parameters:

file - the selected file

depth - the depth of the scan

collection - the result objects, ignored