opennlp.tools.formats.brat

Class BratDocumentStream

java.lang.Object

opennlp.tools.formats.brat.BratDocumentStream

All Implemented Interfaces:

AutoCloseable, ObjectStream<BratDocument>

public class BratDocumentStream
extends Object
implements ObjectStream<BratDocument>

Constructor Summary

Constructors

Constructor and Description
BratDocumentStream(AnnotationConfiguration config, File bratCorpusDirectory, boolean searchRecursive, FileFilter fileFilter) Creates a BratDocumentStream which reads the documents from the given input directory.

Method Summary

Modifier and Type	Method and Description
void	close() Closes the ObjectStream and releases all allocated resources.
BratDocument	read() Returns the next object.
void	reset() Repositions the stream at the beginning and the previously seen object sequence will be repeated exactly.

Methods inherited from class java.lang.Object

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

Constructor Detail

BratDocumentStream

public BratDocumentStream(AnnotationConfiguration config,
                          File bratCorpusDirectory,
                          boolean searchRecursive,
                          FileFilter fileFilter)
                   throws IOException

Creates a BratDocumentStream which reads the documents from the given input directory.

Parameters:

config - the annotation.conf from the brat project as an Annotation Configuration object

bratCorpusDirectory - the directory containing all the brat training data files

searchRecursive - specifies if the corpus directory should be traversed recursively to find training data files.

fileFilter - a custom file filter to filter out certain files or null to accept all files

Throws:

IOException - if reading from the brat directory fails in anyway

Method Detail

read

public BratDocument read()
                  throws IOException

Description copied from interface: ObjectStream

Returns the next object. Calling this method repeatedly until it returns null will return each object from the underlying source exactly once.

Specified by:

read in interface ObjectStream<BratDocument>

Returns:

the next object or null to signal that the stream is exhausted

Throws:

IOException - if there is an error during reading

reset

public void reset()

Description copied from interface: ObjectStream

Repositions the stream at the beginning and the previously seen object sequence will be repeated exactly. This method can be used to re-read the stream if multiple passes over the objects are required. The implementation of this method is optional.

Specified by:

reset in interface ObjectStream<BratDocument>

close

public void close()

Description copied from interface: ObjectStream

Closes the ObjectStream and releases all allocated resources. After close was called its not allowed to call read or reset.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface ObjectStream<BratDocument>