Inheritance diagram for joshua.decoder.InputHandler:

Collaboration diagram for joshua.decoder.InputHandler:

Public Member Functions
synchronized boolean	hasNext ()
Sentence	next ()
void	remove ()
void	register (Translation translation)
String	oracleSentence (int id)
Package Functions
	InputHandler (String corpusFile, String oracleFile)
Package Attributes
String	corpusFile = null
int	sentenceNo = -1
Sentence	nextSentence = null
BufferedReader	lineReader = null
String	nextOracleSentence = null
BufferedReader	oracleReader = null
List< Sentence >	issued
List< Translation >	completed
List< String >	oracles
int	lastCompletedId = -1
Private Member Functions
void	prepareNextLine ()
Static Private Attributes
static final Logger	logger = Logger.getLogger(InputHandler.class.getName())
static final Charset	FILE_ENCODING = Charset.forName("UTF-8")

Detailed Description

This class represents input to the decoder. It currently supports three kinds of input: (1) plain sentences and (2) sentences wrapped in a <seg> tag (via the Sentence class) and (3) lattices (in Python Lattice Format, via the Lattice class). Format (2) is used to denote the sentences number of each sentence.

The input handler provides thread-safe sequential access to the input sentences. It also manages receiving and assembling decoded sentences in order (via calls to register()).

Ideally, InputHandler objects could represent complicated constraints and restrictions on the object being decoded. This would require the actual chart-parsing code to be aware of the restrictions, which could be provided through this object, whose job it would be to parse those constraints from the input.

Author:: Matt Post post@.nosp@m.jhu..nosp@m.edu

Constructor & Destructor Documentation

joshua.decoder.InputHandler.InputHandler	(	String	corpusFile,
		String	oracleFile
	)		`[package]`

Here is the call graph for this function:

Member Function Documentation

synchronized boolean joshua.decoder.InputHandler.hasNext ( )

Sentence joshua.decoder.InputHandler.next ( )

Here is the call graph for this function:

Here is the caller graph for this function:

String joshua.decoder.InputHandler.oracleSentence ( int id )

When the ability to handle oracle sentences is added back in, this function should return the parallel oracle sentence.

Here is the caller graph for this function:

void joshua.decoder.InputHandler.prepareNextLine ( ) [private]

This is called only from (a) the constructor and (b) the next() function. Since the Constructor is called only once, and the call to prepareNextLine() in next() happens within a lock, this function does not require synchronization.

Here is the call graph for this function:

Here is the caller graph for this function:

void joshua.decoder.InputHandler.register ( Translation translation )

Receives a sentence from a thread that has finished translating it.

Here is the call graph for this function:

Here is the caller graph for this function:

void joshua.decoder.InputHandler.remove ( )