org.apache.tools.ant.taskdefs

Class Expand

java.lang.Object

org.apache.tools.ant.ProjectComponent

org.apache.tools.ant.Task

org.apache.tools.ant.taskdefs.Expand

All Implemented Interfaces:

Cloneable

Direct Known Subclasses:

Untar

public class Expand
extends Task

Unzip a file.

Since:

Ant 1.1

Field Summary

Fields

Modifier and Type	Field and Description
static String	ERROR_MULTIPLE_MAPPERS Error message when more that one mapper is defined
static String	NATIVE_ENCODING

Constructor Summary

Constructors

Modifier	Constructor and Description
	Expand() Creates an Expand instance and sets encoding to UTF-8.
protected	Expand(String encoding) Creates an Expand instance and sets the given encoding.

Method Summary

Modifier and Type	Method and Description
void	add(FileNameMapper fileNameMapper) A nested filenamemapper
void	add(ResourceCollection rc) Add a resource collection.
void	addFileset(FileSet set) Add a fileset
void	addPatternset(PatternSet set) Add a patternset.
Mapper	createMapper() Defines the mapper to map source entries to destination files.
void	execute() Do the work.
protected void	expandFile(FileUtils fileUtils, File srcF, File dir) This method is to be overridden by extending unarchival tasks.
protected void	expandResource(Resource srcR, File dir) This method is to be overridden by extending unarchival tasks.
protected void	extractFile(FileUtils fileUtils, File srcF, File dir, InputStream compressedInputStream, String entryName, Date entryDate, boolean isDirectory, FileNameMapper mapper) extract a file to a directory
String	getEncoding()
boolean	getFailOnEmptyArchive() Whether try ing to expand an empty archive would be an error.
protected FileNameMapper	getMapper() get a mapper for a file
boolean	getScanForUnicodeExtraFields()
protected void	internalSetEncoding(String encoding) Supports grand-children that want to support the attribute where the child-class doesn't (i.e.
protected void	internalSetScanForUnicodeExtraFields(boolean b) Supports grand-children that want to support the attribute where the child-class doesn't (i.e.
void	setDest(File d) Set the destination directory.
void	setEncoding(String encoding) Sets the encoding to assume for file names and comments.
void	setFailOnEmptyArchive(boolean b) Whether try ing to expand an empty archive would be an error.
void	setOverwrite(boolean b) Should we overwrite files in dest, even if they are newer than the corresponding entries in the archive?
void	setScanForUnicodeExtraFields(boolean b) Whether unicode extra fields will be used if present.
void	setSrc(File s) Set the path to zip-file.
void	setStripAbsolutePathSpec(boolean b) Whether leading path separators should be stripped.

Methods inherited from class org.apache.tools.ant.Task

bindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, init, isInvalid, log, log, log, log, maybeConfigure, perform, reconfigure, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType

Methods inherited from class org.apache.tools.ant.ProjectComponent

clone, getDescription, getLocation, getProject, setDescription, setLocation, setProject

Methods inherited from class java.lang.Object

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

Field Detail

ERROR_MULTIPLE_MAPPERS

public static final String ERROR_MULTIPLE_MAPPERS

Error message when more that one mapper is defined

See Also:

Constant Field Values

NATIVE_ENCODING

public static final String NATIVE_ENCODING

See Also:

Constant Field Values

Constructor Detail

Expand

public Expand()

Creates an Expand instance and sets encoding to UTF-8.

Expand

protected Expand(String encoding)

Creates an Expand instance and sets the given encoding.

Since:

Ant 1.9.5

Method Detail

add

public void add(FileNameMapper fileNameMapper)

A nested filenamemapper

Parameters:

fileNameMapper - the mapper to add

Since:

Ant 1.6.3

add

public void add(ResourceCollection rc)

Add a resource collection.

Parameters:

rc - a resource collection.

Since:

Ant 1.7

addFileset

public void addFileset(FileSet set)

Add a fileset

Parameters:

set - a file set

addPatternset

public void addPatternset(PatternSet set)

Add a patternset.

Parameters:

set - a pattern set

createMapper

public Mapper createMapper()
                    throws BuildException

Defines the mapper to map source entries to destination files.

Returns:

a mapper to be configured

Throws:

BuildException - if more than one mapper is defined

Since:

Ant1.7

execute

public void execute()
             throws BuildException

Do the work.

Overrides:

execute in class Task

Throws:

BuildException - Thrown in unrecoverable error.

expandFile

protected void expandFile(FileUtils fileUtils,
                          File srcF,
                          File dir)

This method is to be overridden by extending unarchival tasks.

Parameters:

fileUtils - the fileUtils

srcF - the source file

dir - the destination directory

expandResource

protected void expandResource(Resource srcR,
                              File dir)

This method is to be overridden by extending unarchival tasks.

Parameters:

srcR - the source resource

dir - the destination directory

extractFile

protected void extractFile(FileUtils fileUtils,
                           File srcF,
                           File dir,
                           InputStream compressedInputStream,
                           String entryName,
                           Date entryDate,
                           boolean isDirectory,
                           FileNameMapper mapper)
                    throws IOException

extract a file to a directory

Parameters:

fileUtils - a fileUtils object

srcF - the source file

dir - the destination directory

compressedInputStream - the input stream

entryName - the name of the entry

entryDate - the date of the entry

isDirectory - if this is true the entry is a directory

mapper - the filename mapper to use

Throws:

IOException - on error

getEncoding

public String getEncoding()

Since:

Ant 1.8.0

getFailOnEmptyArchive

public boolean getFailOnEmptyArchive()

Whether try ing to expand an empty archive would be an error.

Since:

Ant 1.8.0

getMapper

protected FileNameMapper getMapper()

get a mapper for a file

Returns:

a filenamemapper for a file

getScanForUnicodeExtraFields

public boolean getScanForUnicodeExtraFields()

Since:

Ant 1.8.0

internalSetEncoding

protected void internalSetEncoding(String encoding)

Supports grand-children that want to support the attribute where the child-class doesn't (i.e. Unzip in the compress Antlib).

Since:

Ant 1.8.0

internalSetScanForUnicodeExtraFields

protected void internalSetScanForUnicodeExtraFields(boolean b)

Supports grand-children that want to support the attribute where the child-class doesn't (i.e. Unzip in the compress Antlib).

Since:

Ant 1.8.0

setDest

public void setDest(File d)

Set the destination directory. File will be unzipped into the destination directory.

Parameters:

d - Path to the directory.

setEncoding

public void setEncoding(String encoding)

Sets the encoding to assume for file names and comments.

Set to native-encoding if you want your platform's native encoding, defaults to UTF8.

Parameters:

encoding - the name of the character encoding

Since:

Ant 1.6

setFailOnEmptyArchive

public void setFailOnEmptyArchive(boolean b)

Whether try ing to expand an empty archive would be an error.

Since:

Ant 1.8.0

setOverwrite

public void setOverwrite(boolean b)

Should we overwrite files in dest, even if they are newer than the corresponding entries in the archive?

Parameters:

b - a boolean value

setScanForUnicodeExtraFields

public void setScanForUnicodeExtraFields(boolean b)

Whether unicode extra fields will be used if present.

Since:

Ant 1.8.0

setSrc

public void setSrc(File s)

Set the path to zip-file.

Parameters:

s - Path to zip-file.

setStripAbsolutePathSpec

public void setStripAbsolutePathSpec(boolean b)

Whether leading path separators should be stripped.

Since:

Ant 1.8.0