marytts.util.data.text

Class TextReaderDoubleDataSource

java.lang.Object

marytts.util.data.BaseDoubleDataSource

marytts.util.data.text.TextReaderDoubleDataSource

All Implemented Interfaces:

DoubleDataSource

Direct Known Subclasses:

ESTTextfileDoubleDataSource, LabelfileDoubleDataSource, PraatTextfileDoubleDataSource, SnackTextfileDoubleDataSource

public class TextReaderDoubleDataSource
extends BaseDoubleDataSource

Author:

Marc Schröder A Double Data Source reading doubles from a Reader, in their string representation. The Reader is expected to contain the text representation of exactly one double per line.

Field Summary

Fields

Modifier and Type	Field and Description
protected BufferedReader	reader

Fields inherited from class marytts.util.data.BaseDoubleDataSource

dataLength, inputSource

Fields inherited from interface marytts.util.data.DoubleDataSource

NOT_SPECIFIED

Constructor Summary

Constructors

Constructor and Description
TextReaderDoubleDataSource(File file) Read Double data from a Text file.
TextReaderDoubleDataSource(Reader reader) Initialize this double data source with the reader from which a text representation of doubles (one per line) can be read.

Method Summary

Methods

Modifier and Type	Method and Description
int	getData(double[] target, int targetPos, int length) Try to get length doubles from this DoubleDataSource, and copy them into target, starting from targetPos.
boolean	hasMoreData() Whether or not any more data can be read from this data source.

Methods inherited from class marytts.util.data.BaseDoubleDataSource

available, getAllData, getData, getData, getDataLength

Methods inherited from class java.lang.Object

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

Field Detail

reader

protected BufferedReader reader

Constructor Detail

TextReaderDoubleDataSource

public TextReaderDoubleDataSource(File file)
                           throws FileNotFoundException

Read Double data from a Text file. Read one double per line.

Parameters:

file - file

Throws:

FileNotFoundException - FileNotFoundException

TextReaderDoubleDataSource

public TextReaderDoubleDataSource(Reader reader)

Initialize this double data source with the reader from which a text representation of doubles (one per line) can be read.

Parameters:

reader - reader

Method Detail

getData

public int getData(double[] target,
          int targetPos,
          int length)

Try to get length doubles from this DoubleDataSource, and copy them into target, starting from targetPos. This is the core method getting the data. Subclasses may want to override this method. If an exception occurs reading from the underlying reader, or converting data to double, the method will print a stack trace to standard error, but otherwise will silently stop and behave as if all data was read.

Specified by:

getData in interface DoubleDataSource

Overrides:

getData in class BaseDoubleDataSource

Parameters:

target - the double array to write into

targetPos - position in target where to start writing

length - the amount of data requested

Returns:

the amount of data actually delivered. If the returned value is less than length, only that many data items have been copied into target; further calls will return 0 and not copy anything.

hasMoreData

public boolean hasMoreData()

Whether or not any more data can be read from this data source.

Specified by:

hasMoreData in interface DoubleDataSource

Overrides:

hasMoreData in class BaseDoubleDataSource

Returns:

true if another call to getData() will return data, false otherwise.