Package org.apache.tools.ant.types.resources

# Class GZipResource

java.lang.Object
org.apache.tools.ant.ProjectComponent
org.apache.tools.ant.types.DataType
org.apache.tools.ant.types.Resource
org.apache.tools.ant.types.resources.ResourceDecorator
org.apache.tools.ant.types.resources.ContentTransformingResource
org.apache.tools.ant.types.resources.CompressedResource
org.apache.tools.ant.types.resources.GZipResource

All Implemented Interfaces:
  `Cloneable`, `Comparable<Resource>`, `Iterable<Resource>`, `ResourceCollection`

public class GZipResource extends CompressedResource
A GZip compressed resource.

Wraps around another resource, delegates all queries to that other resource but uncompresses/compresses streams on the fly.

Since:
  Ant 1.7

## Field Summary

### Fields inherited from class org.apache.tools.ant.types.Resource

`MAGIC, UNKNOWN_DATETIME, UNKNOWN_SIZE`

### Fields inherited from class org.apache.tools.ant.types.DataType

`checked, ref`

### Fields inherited from class org.apache.tools.ant.ProjectComponent

`description, location, project`

## Constructor Summary

Constructors
Constructor
Description
`GZipResource()`
A no-arg constructor
`GZipResource(ResourceCollection other)`
Constructor with another resource to wrap.

## Method Summary

Modifier and Type
Method
Description
`protected String`
`getCompressionName()`
Get the name of the compression method.
`protected InputStream`
`wrapStream(InputStream in)`
Decompress on the fly using java.util.zip.GZIPInputStream.
`protected OutputStream`
`wrapStream(OutputStream out)`
Compress on the fly using java.util.zip.GZIPOutStream.

### Methods inherited from class org.apache.tools.ant.types.resources.CompressedResource

`toString`

### Methods inherited from class org.apache.tools.ant.types.resources.ContentTransformingResource

`as, getInputStream, getOutputStream, getSize, isAppendSupported`

### Methods inherited from class org.apache.tools.ant.types.resources.ResourceDecorator

`addConfigured, compareTo, dieOnCircularReference, getLastModified, getName, getResource, hashCode, isDirectory, isExists, isFilesystemOnly, setDirectory, setExists, setLastModified, setName, setRefid, setSize`

### Methods inherited from class org.apache.tools.ant.types.Resource

`asOptional, clone, equals, getMagicNumber, getRef, iterator, size, toLongString`

### Methods inherited from class org.apache.tools.ant.types.DataType

`checkAttributesAllowed, checkChildrenAllowed, circularReference, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, pushAndInvokeCircularReferenceCheck, setChecked, tooManyAttributes`

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

`getDescription, getLocation, getProject, log, log, setDescription, setLocation, setProject`

### Methods inherited from class java.lang.Object

`finalize, getClass, notify, notifyAll, wait, wait, wait`

### Methods inherited from interface java.lang.Iterable

`forEach, spliterator`

### Methods inherited from interface org.apache.tools.ant.types.ResourceCollection

`isEmpty, stream`

## Constructor Details

### GZipResource

public GZipResource()
A no-arg constructor

### GZipResource

public GZipResource(ResourceCollection other)
Constructor with another resource to wrap.

Parameters:
  `other` - the resource to wrap.

## Method Details

### wrapStream

protected InputStream wrapStream(InputStream in) throws IOException
Decompress on the fly using java.util.zip.GZIPInputStream.

Specified by:
  `wrapStream` in class `ContentTransformingResource`
Parameters:
  `in` - the stream to wrap.
Returns:
  the wrapped stream.
Throws:
  `IOException` - if there is a problem.

### wrapStream

protected OutputStream wrapStream(OutputStream out) throws IOException
Compress on the fly using java.util.zip.GZIPOutStream.

Specified by:
  `wrapStream` in class `ContentTransformingResource`
Parameters:
  `out` - the stream to wrap.
Returns:
  the wrapped stream.
Throws:
  `IOException` - if there is a problem.

### getCompressionName

protected String getCompressionName()
Get the name of the compression method.

Specified by:
  `getCompressionName` in class `CompressedResource`
Returns:
  the string "GZip".