xdi2.core.io

Class AbstractXDIReader

java.lang.Object

xdi2.core.io.AbstractXDIReader

All Implemented Interfaces:

Serializable, XDIReader

Direct Known Subclasses:

AutoReader, XDIDisplayReader, XDIJSONQuadReader, XDIJSONReader, XDIJXDReader, XDIRawJSONReader

public abstract class AbstractXDIReader
extends Object
implements XDIReader

If you extend this class, you only have to implement read(Graph, Reader, Properties)

Author:

markus

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static Charset	DEFAULT_CHARSET
protected Properties	parameters

Constructor Summary

Constructors

Constructor and Description
AbstractXDIReader(Properties parameters)

Method Summary

Modifier and Type	Method and Description
String	getFileExtension() Returns the file extension of this XDIReader, e.g.
String	getFormat() Returns the format this XDIReader can read, e.g.
MimeType	getMimeType() Returns the mime type this XDIReader can read, e.g.
protected abstract void	init()
InputStream	read(Graph graph, InputStream stream) Reads an XDI graph from a byte stream.
boolean	supportsFileExtension(String fileExtension) Checks if a given file extension is supported.
boolean	supportsFormat(String format) Checks if a given format is supported.
boolean	supportsMimeType(MimeType mimeType) Checks if a given mime type is supported.

Methods inherited from class java.lang.Object

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

Methods inherited from interface xdi2.core.io.XDIReader

read

Field Detail

DEFAULT_CHARSET

public static final Charset DEFAULT_CHARSET

parameters

protected Properties parameters

Constructor Detail

AbstractXDIReader

public AbstractXDIReader(Properties parameters)

Method Detail

init

protected abstract void init()

read

public InputStream read(Graph graph,
                        InputStream stream)
                 throws IOException,
                        Xdi2ParseException

Description copied from interface: XDIReader

Reads an XDI graph from a byte stream.

Specified by:

read in interface XDIReader

Parameters:

graph - A graph that will hold the read data.

stream - A byte stream from which to read.

Returns:

The byte stream.

Throws:

IOException

Xdi2ParseException

getFormat

public final String getFormat()

Description copied from interface: XDIReader

Returns the format this XDIReader can read, e.g.

• XDI/JSON
• XDI DISPLAY

Specified by:

getFormat in interface XDIReader

Returns:

The format of this XDIReader.

getFileExtension

public final String getFileExtension()

Description copied from interface: XDIReader

Returns the file extension of this XDIReader, e.g.

• .xdi
• .json

Specified by:

getFileExtension in interface XDIReader

Returns:

The file extension of this XDIReader.

getMimeType

public final MimeType getMimeType()

Description copied from interface: XDIReader

Returns the mime type this XDIReader can read, e.g.

• text/plain
• application/xdi+json

Specified by:

getMimeType in interface XDIReader

Returns:

The mime type of this XDIReader.

supportsFormat

public boolean supportsFormat(String format)

Description copied from interface: XDIReader

Checks if a given format is supported.

Specified by:

supportsFormat in interface XDIReader

Returns:

True, if supported.

supportsFileExtension

public boolean supportsFileExtension(String fileExtension)

Description copied from interface: XDIReader

Checks if a given file extension is supported.

Specified by:

supportsFileExtension in interface XDIReader

Returns:

True, if supported.

supportsMimeType

public boolean supportsMimeType(MimeType mimeType)

Description copied from interface: XDIReader

Checks if a given mime type is supported.

Specified by:

supportsMimeType in interface XDIReader

Returns:

True, if supported.