com.pega.pegarules.pub.util

Class PRReader

java.lang.Object

java.io.Reader

com.pega.pegarules.pub.util.PRReader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, java.lang.Readable

public class PRReader
extends java.io.Reader

PRReader is a thin wrapper around java.io.Reader that ALWAYS uses an encoding instead of relying on the platform default.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	COPYRIGHT copyright
static java.lang.String	VERSION version id

Constructor Summary

Constructors

Constructor and Description
PRReader(java.io.File aFile, java.lang.String aEncoding) Deprecated.
PRReader(java.io.InputStream aInStream, java.lang.String aEncoding) Creates a new PRReader from the specified aInStream.
PRReader(PRFile aFile, java.lang.String aEncoding)
PRReader(java.lang.String aFileSpec, java.lang.String aEncoding) Creates a new PRReader from the specified aFilePathName

Method Summary

Modifier and Type	Method and Description
long	byteLength() Returns the number of bytes (not characters) in the underlying stream that will be processed and returned by this reader.
void	close() Close the stream.
int	read(char[] aCbuf, int aOff, int aLen) Read characters into a portion of an array.

Methods inherited from class java.io.Reader

mark, markSupported, read, read, read, ready, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

COPYRIGHT

public static final java.lang.String COPYRIGHT

copyright

See Also:

Constant Field Values

VERSION

public static final java.lang.String VERSION

version id

Constructor Detail

PRReader

public PRReader(java.io.InputStream aInStream,
                java.lang.String aEncoding)
         throws java.io.IOException,
                java.io.UnsupportedEncodingException

Creates a new PRReader from the specified aInStream.

Parameters:

aInStream - a InputStream

aEncoding - The encoding type to use. See PRFileUtil.ENCODING_* types

Throws:

java.io.IOException

java.io.UnsupportedEncodingException

PRReader

public PRReader(java.io.File aFile,
                java.lang.String aEncoding)
         throws java.io.FileNotFoundException,
                java.io.UnsupportedEncodingException,
                java.io.IOException

Deprecated.

Creates a new PRReader from the specified File.

Parameters:

aFile - a File

aEncoding - The encoding type to use. See PRFileUtil.ENCODING_* types

Throws:

java.io.FileNotFoundException

java.io.UnsupportedEncodingException

java.io.IOException

PRReader

public PRReader(PRFile aFile,
                java.lang.String aEncoding)
         throws java.io.FileNotFoundException,
                java.io.UnsupportedEncodingException,
                java.io.IOException

Throws:

java.io.FileNotFoundException

java.io.UnsupportedEncodingException

java.io.IOException

PRReader

public PRReader(java.lang.String aFileSpec,
                java.lang.String aEncoding)
         throws java.io.FileNotFoundException,
                java.io.UnsupportedEncodingException,
                java.io.IOException

Creates a new PRReader from the specified aFilePathName

Parameters:

aFileSpec - The URL specification for the file

aEncoding - The encoding type to use. See PRFileUtil.ENCODING_* types

Throws:

java.io.FileNotFoundException

java.io.UnsupportedEncodingException

java.io.IOException

Method Detail

close

public void close()
           throws java.io.IOException

Close the stream. Behaviour is identical to InputStreamReader.close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in class java.io.Reader

Throws:

java.io.IOException

See Also:

InputStreamReader.close()

read

public int read(char[] aCbuf,
                int aOff,
                int aLen)
         throws java.io.IOException

Read characters into a portion of an array. Identical to InputStreamReader.read(char[], int, int)

Specified by:

read in class java.io.Reader

Parameters:

aCbuf - Destination buffer

aOff - Offset at which to start storing characters

aLen - Maximum number of characters to read

Returns:

The number of characters read, or -1 if the end of the stream has been reached

Throws:

java.io.IOException - If an I/O error occurs

See Also:

InputStreamReader.read(char[], int, int)

byteLength

public long byteLength()

Returns the number of bytes (not characters) in the underlying stream that will be processed and returned by this reader. (Works best with files)

Returns:

file size minus the size of the byte order mark that is removed internally