at.gv.egiz.pdfas.impl.input
Class FileBasedTextDataSourceImpl

java.lang.Object
  at.gv.egiz.pdfas.impl.input.FileBasedTextDataSourceImpl

All Implemented Interfaces:

DataSource, FileBased, TextDataSource

public class FileBasedTextDataSourceImpl

extends Object

implements TextDataSource, FileBased

Author:

wprinz

Field Summary

protected String	characterEncoding
protected File	file

Constructor Summary

FileBasedTextDataSourceImpl(File file, String characterEncoding)

Method Summary

InputStream	createInputStream() Creates a new InputStream that allows to read out the document's binary data from the beginning.
byte[]	getAsByteArray() Returns the data of this DataSource as a byte array.
String	getCharacterEncoding() Returns the character encoding.
File	getFile() Returns the underlying data file.
int	getLength() Returns the length (number of bytes) of the stream.
String	getText() Returns the text to be processed.

Methods inherited from class java.lang.Object

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

Field Detail

file

protected File file

characterEncoding

protected String characterEncoding

Constructor Detail

FileBasedTextDataSourceImpl

public FileBasedTextDataSourceImpl(File file,
                                   String characterEncoding)
                            throws IOException

Method Detail

getFile

public File getFile()

Description copied from interface: FileBased

Returns the underlying data file.

Specified by:

getFile in interface FileBased

Returns:

Returns the underlying data file.

See Also:

FileBased.getFile()

getCharacterEncoding

public String getCharacterEncoding()

Returns the character encoding.

Returns:

Returns the character encoding.

getText

public String getText()

Description copied from interface: TextDataSource

Returns the text to be processed.

Specified by:

getText in interface TextDataSource

Returns:

Returns the text to be processed.

See Also:

TextDataSource.getText()

createInputStream

public InputStream createInputStream()

Description copied from interface: DataSource

Creates a new InputStream that allows to read out the document's binary data from the beginning.

Specified by:

createInputStream in interface DataSource

Returns:

Returns the InputStream with the binary data.

See Also:

DataSource.createInputStream()

getLength

public int getLength()

Description copied from interface: DataSource

Returns the length (number of bytes) of the stream.

Specified by:

getLength in interface DataSource

Returns:

Returns the length (number of bytes) of the stream.

See Also:

DataSource.getLength()

getAsByteArray

public byte[] getAsByteArray()

Description copied from interface: DataSource

Returns the data of this DataSource as a byte array.

Calling this method indicates that you need a byte array for random read access. The DataSource implementation should of course cache this byte array to avoid too much memory usage.

Performance analysis has shown that the libraries internally convert the streams to byte arrays and that file system access is very slow.

Specified by:

getAsByteArray in interface DataSource

Returns:

See Also:

DataSource.getAsByteArray()