Class ContentTransformingResource
- java.lang.Object
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- org.apache.tools.ant.ProjectComponent
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- org.apache.tools.ant.types.DataType
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- org.apache.tools.ant.types.Resource
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- org.apache.tools.ant.types.resources.ResourceDecorator
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- org.apache.tools.ant.types.resources.ContentTransformingResource
 
 
 
 
 
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- All Implemented Interfaces:
- java.lang.Cloneable,- java.lang.Comparable<Resource>,- java.lang.Iterable<Resource>,- ResourceCollection
 - Direct Known Subclasses:
- CompressedResource
 
 public abstract class ContentTransformingResource extends ResourceDecorator A resource that transforms the content of another resource.Wraps around another resource, delegates all queries (except getSize) to that other resource but transforms stream content on the fly. - Since:
- Ant 1.8
 
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Field Summary- 
Fields inherited from class org.apache.tools.ant.types.ResourceMAGIC, UNKNOWN_DATETIME, UNKNOWN_SIZE
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Fields inherited from class org.apache.tools.ant.ProjectComponentdescription, location, project
 
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Constructor SummaryConstructors Modifier Constructor Description protectedContentTransformingResource()no arg constructorprotectedContentTransformingResource(ResourceCollection other)Constructor with another resource to wrap.
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Method SummaryModifier and Type Method Description <T> Tas(java.lang.Class<T> clazz)Suppress FileProvider, re-implement Appendablejava.io.InputStreamgetInputStream()Get an InputStream for the Resource.java.io.OutputStreamgetOutputStream()Get an OutputStream for the Resource.longgetSize()Get the size of this Resource.protected booleanisAppendSupported()Learn whether the transformation performed allows appends.protected abstract java.io.InputStreamwrapStream(java.io.InputStream in)Get a content-filtering/transforming InputStream.protected abstract java.io.OutputStreamwrapStream(java.io.OutputStream out)Get a content-filtering/transforming OutputStream.- 
Methods inherited from class org.apache.tools.ant.types.resources.ResourceDecoratoraddConfigured, compareTo, dieOnCircularReference, getLastModified, getName, getResource, hashCode, isDirectory, isExists, isFilesystemOnly, setDirectory, setExists, setLastModified, setName, setRefid, setSize
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Methods inherited from class org.apache.tools.ant.types.ResourceasOptional, clone, equals, getMagicNumber, getRef, iterator, size, toLongString, toString
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Methods inherited from class org.apache.tools.ant.types.DataTypecheckAttributesAllowed, checkChildrenAllowed, circularReference, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, pushAndInvokeCircularReferenceCheck, setChecked, tooManyAttributes
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Methods inherited from class org.apache.tools.ant.ProjectComponentgetDescription, getLocation, getProject, log, log, setDescription, setLocation, setProject
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Methods inherited from class java.lang.Objectfinalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.apache.tools.ant.types.ResourceCollectionisEmpty, stream
 
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Constructor Detail- 
ContentTransformingResourceprotected ContentTransformingResource() no arg constructor
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ContentTransformingResourceprotected ContentTransformingResource(ResourceCollection other) Constructor with another resource to wrap.- Parameters:
- other- the resource to wrap.
 
 
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Method Detail- 
getSizepublic long getSize() Get the size of this Resource.- Overrides:
- getSizein class- ResourceDecorator
- Returns:
- the size, as a long, 0 if the Resource does not exist (for compatibility with java.io.File), or UNKNOWN_SIZE if not known.
 
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getInputStreampublic java.io.InputStream getInputStream() throws java.io.IOExceptionGet an InputStream for the Resource.- Overrides:
- getInputStreamin class- ResourceDecorator
- Returns:
- an InputStream containing this Resource's content.
- Throws:
- java.io.IOException- if unable to provide the content of this Resource as a stream.
- java.lang.UnsupportedOperationException- if InputStreams are not supported for this Resource type.
 
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getOutputStreampublic java.io.OutputStream getOutputStream() throws java.io.IOExceptionGet an OutputStream for the Resource.- Overrides:
- getOutputStreamin class- ResourceDecorator
- Returns:
- an OutputStream to which content can be written.
- Throws:
- java.io.IOException- if unable to provide the content of this Resource as a stream.
- java.lang.UnsupportedOperationException- if OutputStreams are not supported for this Resource type.
 
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aspublic <T> T as(java.lang.Class<T> clazz) Suppress FileProvider, re-implement Appendable- Overrides:
- asin class- ResourceDecorator
- Type Parameters:
- T- desired type
- Parameters:
- clazz- a class
- Returns:
- resource of a desired type
 
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isAppendSupportedprotected boolean isAppendSupported() Learn whether the transformation performed allows appends.In general compressed outputs will become invalid if they are appended to, for example. This implementations returns false. - Returns:
- boolean false
 
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wrapStreamprotected abstract java.io.InputStream wrapStream(java.io.InputStream in) throws java.io.IOExceptionGet a content-filtering/transforming InputStream.- Parameters:
- in- InputStream to wrap, will never be null.
- Returns:
- a compressed InputStream.
- Throws:
- java.io.IOException- if there is a problem.
 
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wrapStreamprotected abstract java.io.OutputStream wrapStream(java.io.OutputStream out) throws java.io.IOExceptionGet a content-filtering/transforming OutputStream.- Parameters:
- out- OutputStream to wrap, will never be null.
- Returns:
- a compressed OutputStream.
- Throws:
- java.io.IOException- if there is a problem.
 
 
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