Package org.eclipse.jgit.internal.diffmergetool

Class FileElement

java.lang.Object

org.eclipse.jgit.internal.diffmergetool.FileElement

public class FileElement
extends Object

The element used as left or right file for compare.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FileElement.Type	The file element type.

Constructor Summary

Constructors

Constructor	Description
FileElement(String path, FileElement.Type type)	Creates file element for path.
FileElement(String path, FileElement.Type type, File workDir)	Creates file element for path.
FileElement(String path, FileElement.Type type, File workDir, InputStream stream)

Method Summary

Modifier and Type	Method	Description
void	addToEnv(Map<String,String> env)	Add variable to environment map.
void	cleanTemporaries()	Delete and invalidate temporary file if necessary.
File	createTempFile(File directory)	Create temporary file in given or system temporary directory.
File	getFile()	Return a temporary file if already created and stream is not valid OR a real file from work tree: if no temp file was created (@see createTempFile()) and if no stream was set OR an empty temporary file if path is "/dev/null" OR a temporary file with stream content if stream is valid (not null); stream is closed and invalidated (set to null) after write to temp file, so stream is used only once during first call!
String	getPath()
FileElement.Type	getType()
boolean	isNullPath()	Check if path id "/dev/null"
String	replaceVariable(String input)	Replace variable in input.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileElement

public FileElement(String path,
                   FileElement.Type type)

Creates file element for path.

Parameters:

path - the file path

type - the element type

FileElement

public FileElement(String path,
                   FileElement.Type type,
                   File workDir)

Creates file element for path.

Parameters:

path - the file path

type - the element type

workDir - the working directory of the path (can be null, then current working dir is used)

FileElement

public FileElement(String path,
                   FileElement.Type type,
                   File workDir,
                   InputStream stream)

Parameters:

path - the file path

type - the element type

workDir - the working directory of the path (can be null, then current working dir is used)

stream - the object stream to load and write on demand, @see getFile(), to tempFile once (can be null)

Method Detail

getPath

public String getPath()

Returns:

the file path

getType

public FileElement.Type getType()

Returns:

the element type

getFile

public File getFile()
             throws IOException

Return

• a temporary file if already created and stream is not valid
• OR a real file from work tree: if no temp file was created (@see createTempFile()) and if no stream was set
• OR an empty temporary file if path is "/dev/null"
• OR a temporary file with stream content if stream is valid (not null); stream is closed and invalidated (set to null) after write to temp file, so stream is used only once during first call!

Returns:

the object stream

Throws:

IOException

isNullPath

public boolean isNullPath()

Check if path id "/dev/null"

Returns:

true if path is "/dev/null"

createTempFile

public File createTempFile(File directory)
                    throws IOException

Create temporary file in given or system temporary directory.

Parameters:

directory - the directory for the file (can be null); if null system temporary directory is used

Returns:

temporary file in directory or in the system temporary directory

Throws:

IOException

cleanTemporaries

public void cleanTemporaries()

Delete and invalidate temporary file if necessary.

replaceVariable

public String replaceVariable(String input)
                       throws IOException

Replace variable in input.

Parameters:

input - the input string

Returns:

the replaced input string

Throws:

IOException

addToEnv

public void addToEnv(Map<String,String> env)
              throws IOException

Add variable to environment map.

Parameters:

env - the environment where this element should be added

Throws:

IOException