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:
  java.lang.Cloneable, java.lang.Comparable<Resource>, java.lang.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 and Description
`GZipResource()` A no-arg constructor
`GZipResource(ResourceCollection other)` Constructor with another resource to wrap.

### Method Summary

Methods
`protected java.lang.String` `getCompressionName()` Get the name of the compression method.
`protected java.io.InputStream` `wrapStream(java.io.InputStream in)` Decompress on the fly using java.util.zip.GZIPInputStream.
`protected java.io.OutputStream` `wrapStream(java.io.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

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

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

`checkAttributesAllowed, checkChildrenAllowed, circularReference, dieOnCircularReference, dieOnCircularReference, 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`

### Constructor Detail

#### 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 Detail

#### wrapStream

    protected java.io.InputStream wrapStream(java.io.InputStream in)
                                      throws java.io.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:
  `java.io.IOException` - if there is a problem.

#### wrapStream

    protected java.io.OutputStream wrapStream(java.io.OutputStream out)
                                       throws java.io.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:
  `java.io.IOException` - if there is a problem.

#### getCompressionName

    protected java.lang.String getCompressionName()

Get the name of the compression method.

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