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

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

All Implemented Interfaces:

DataSource, TextDataSource

Direct Known Subclasses:

TextDataSourceAdapter

public class TextDataSourceImpl

extends Object

implements TextDataSource

A TextDataSource that keeps the text in memory.

Keeping the text in memory is fast as long as the text is short, but may result in bad memory performance when the text is longer. Use a FileBased TextDataSource instead if memory is an issue.

Author:

wprinz

Field Summary

protected String

text The text.

Constructor Summary

TextDataSourceImpl(String text)
Constructor that sets the text.

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.
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

text

protected String text

The text.

Constructor Detail

TextDataSourceImpl

public TextDataSourceImpl(String text)

Constructor that sets the text.

Parameters:

text - The text.

Method Detail

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()