org.springframework.core.io.support

Class EncodedResource

java.lang.Object

org.springframework.core.io.support.EncodedResource

All Implemented Interfaces:

InputStreamSource

public class EncodedResource
extends java.lang.Object
implements InputStreamSource

Holder that combines a Resource descriptor with a specific encoding or Charset to be used for reading from the resource.

Used as an argument for operations that support reading content with a specific encoding, typically via a java.io.Reader.

Since:

1.2.6

Author:

Juergen Hoeller, Sam Brannen

See Also:

InputStreamSource.getInputStream(), Reader, Charset

Field Summary

Fields

Modifier and Type	Field and Description
private java.nio.charset.Charset	charset
private java.lang.String	encoding
private Resource	resource

Constructor Summary

Constructors

Modifier	Constructor and Description
	EncodedResource(Resource resource) Create a new EncodedResource for the given Resource, not specifying an explicit encoding or Charset.
	EncodedResource(Resource resource, java.nio.charset.Charset charset) Create a new EncodedResource for the given Resource, using the specified Charset.
	EncodedResource(Resource resource, java.lang.String encoding) Create a new EncodedResource for the given Resource, using the specified encoding.
private	EncodedResource(Resource resource, java.lang.String encoding, java.nio.charset.Charset charset)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object other)
java.nio.charset.Charset	getCharset() Return the Charset to use for reading from the resource, or null if none specified.
java.lang.String	getEncoding() Return the encoding to use for reading from the resource, or null if none specified.
java.io.InputStream	getInputStream() Open an InputStream for the specified resource, ignoring any specified Charset or encoding.
java.io.Reader	getReader() Open a java.io.Reader for the specified resource, using the specified Charset or encoding (if any).
Resource	getResource() Return the Resource held by this EncodedResource.
int	hashCode()
boolean	requiresReader() Determine whether a Reader is required as opposed to an InputStream, i.e.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

resource

private final Resource resource

encoding

private final java.lang.String encoding

charset

private final java.nio.charset.Charset charset

Constructor Detail

EncodedResource

public EncodedResource(Resource resource)

Create a new EncodedResource for the given Resource, not specifying an explicit encoding or Charset.

Parameters:

resource - the Resource to hold (never null)

EncodedResource

public EncodedResource(Resource resource,
                       java.lang.String encoding)

Create a new EncodedResource for the given Resource, using the specified encoding.

Parameters:

resource - the Resource to hold (never null)

encoding - the encoding to use for reading from the resource

EncodedResource

public EncodedResource(Resource resource,
                       java.nio.charset.Charset charset)

Create a new EncodedResource for the given Resource, using the specified Charset.

Parameters:

resource - the Resource to hold (never null)

charset - the Charset to use for reading from the resource

EncodedResource

private EncodedResource(Resource resource,
                        java.lang.String encoding,
                        java.nio.charset.Charset charset)

Method Detail

getResource

public final Resource getResource()

Return the Resource held by this EncodedResource.

getEncoding

public final java.lang.String getEncoding()

Return the encoding to use for reading from the resource, or null if none specified.

getCharset

public final java.nio.charset.Charset getCharset()

Return the Charset to use for reading from the resource, or null if none specified.

requiresReader

public boolean requiresReader()

Determine whether a Reader is required as opposed to an InputStream, i.e. whether an encoding or a Charset has been specified.

See Also:

getReader(), getInputStream()

getReader

public java.io.Reader getReader()
                         throws java.io.IOException

Open a java.io.Reader for the specified resource, using the specified Charset or encoding (if any).

Throws:

java.io.IOException - if opening the Reader failed

See Also:

requiresReader(), getInputStream()

getInputStream

public java.io.InputStream getInputStream()
                                   throws java.io.IOException

Open an InputStream for the specified resource, ignoring any specified Charset or encoding.

Specified by:

getInputStream in interface InputStreamSource

Returns:

the input stream for the underlying resource (must not be null)

Throws:

java.io.IOException - if opening the InputStream failed

See Also:

requiresReader(), getReader()

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object