Class GUnzip

java.lang.Object

org.apache.tools.ant.ProjectComponent

org.apache.tools.ant.Task

org.apache.tools.ant.taskdefs.Unpack

org.apache.tools.ant.taskdefs.GUnzip

All Implemented Interfaces:

Cloneable

public class GUnzip
extends Unpack

Expands a file that has been compressed with the GZIP algorithm. Normally used to compress non-compressed archives such as TAR files.

Since:

Ant 1.1

Field Summary

Fields inherited from class Unpack

dest, source, srcResource

Modifier and Type	Field	Description
protected File	dest
protected File	source
protected Resource	srcResource

Fields inherited from class Task

target, taskName, taskType, wrapper

Modifier and Type	Field	Description
protected Target	target	Deprecated. since 1.6.x.
protected String	taskName	Deprecated. since 1.6.x.
protected String	taskType	Deprecated. since 1.6.x.
protected RuntimeConfigurable	wrapper	Deprecated. since 1.6.x.

Fields inherited from class ProjectComponent

description, location, project

Modifier and Type	Field	Description
protected String	description	Deprecated. since 1.6.x.
protected Location	location	Deprecated. since 1.6.x.
protected Project	project	Deprecated. since 1.6.x.

Constructor Summary

Constructors

Constructor	Description
GUnzip()

Method Summary

Modifier and Type	Method	Description
protected void	extract()	Implement the gunzipping.
protected String	getDefaultExtension()	Get the default extension.
protected boolean	supportsNonFileResources()	Whether this task can deal with non-file resources.

Methods inherited from class Unpack

addConfigured, execute, setDest, setDest, setSrc, setSrc, setSrcResource

Modifier and Type	Method	Description
void	addConfigured(ResourceCollection a)	Set the source Archive resource.
void	execute()	Execute the task.
void	setDest(File dest)	The destination file or directory; optional.
void	setDest(String dest)	Deprecated. since 1.5.x.
void	setSrc(File src)	The file to expand; required.
void	setSrc(String src)	Deprecated. since 1.5.x.
void	setSrcResource(Resource src)	The resource to expand; required.

Methods inherited from class 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

Modifier and Type	Method	Description
final void	bindToOwner(Task owner)	Bind a task to another; use this when configuring a newly created task to do work on behalf of another.
Target	getOwningTarget()	Returns the container target of this task.
RuntimeConfigurable	getRuntimeConfigurableWrapper()	Returns the wrapper used for runtime configuration.
String	getTaskName()	Returns the name to use in logging messages.
String	getTaskType()	Return the type of task.
protected RuntimeConfigurable	getWrapper()	Return the runtime configurable structure for this task.
protected void	handleErrorFlush(String output)	Handles an error line by logging it with the WARN priority.
protected void	handleErrorOutput(String output)	Handles an error output by logging it with the WARN priority.
protected void	handleFlush(String output)	Handles output by logging it with the INFO priority.
protected int	handleInput(byte[] buffer, int offset, int length)	Handle an input request by this task.
protected void	handleOutput(String output)	Handles output by logging it with the INFO priority.
void	init()	Called by the project to let the task initialize properly.
protected final boolean	isInvalid()	Has this task been marked invalid?
void	log(String msg)	Logs a message with the default (INFO) priority.
void	log(String msg, int msgLevel)	Logs a message with the given priority.
void	log(String msg, Throwable t, int msgLevel)	Logs a message with the given priority.
void	log(Throwable t, int msgLevel)	Logs a message with the given priority.
void	maybeConfigure()	Configures this task - if it hasn't been done already.
final void	perform()	Performs this task if it's still valid, or gets a replacement version and performs that otherwise.
void	reconfigure()	Force the task to be reconfigured from its RuntimeConfigurable.
void	setOwningTarget(Target target)	Sets the target container of this task.
void	setRuntimeConfigurableWrapper(RuntimeConfigurable wrapper)	Sets the wrapper to be used for runtime configuration.
void	setTaskName(String name)	Sets the name to use in logging messages.
void	setTaskType(String type)	Sets the name with which the task has been invoked.

Methods inherited from class ProjectComponent

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

Modifier and Type	Method	Description
Object	clone()
String	getDescription()	Returns the description of the current action.
Location	getLocation()	Returns the file/location where this task was defined.
Project	getProject()	Returns the project to which this component belongs.
void	setDescription(String desc)	Sets a description of the current action.
void	setLocation(Location location)	Sets the file/location where this task was defined.
void	setProject(Project project)	Sets the project object of this component.

Methods inherited from class Object

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

Constructor Details

GUnzip

public GUnzip()

Method Details

getDefaultExtension

protected String getDefaultExtension()

Get the default extension.

Specified by:

getDefaultExtension in class Unpack

Returns:

the value ".gz"

extract

protected void extract()

Implement the gunzipping.

Specified by:

extract in class Unpack

supportsNonFileResources

protected boolean supportsNonFileResources()

Whether this task can deal with non-file resources.

This implementation returns true only if this task is <gunzip>. Any subclass of this class that also wants to support non-file resources needs to override this method. We need to do so for backwards compatibility reasons since we can't expect subclasses to support resources.

Overrides:

supportsNonFileResources in class Unpack

Returns:

true if this task supports non file resources.

Since:

Ant 1.7