ifc.bim.openecg.jtools.jparser
Class SectGen

java.lang.Object
  |
  +--ifc.bim.openecg.jtools.jparser.SectGen

Direct Known Subclasses:

Sect000, Sect001, Sect002, Sect003, Sect004, Sect005, Sect006, Sect007, Sect008, Sect009, Sect010, Sect011

public class SectGen

extends java.lang.Object

The structure of a generic section, with methods to load header and data part from a file

Field Summary

byte[]	data Stores the section's data part
SectHeader	head Stores the section's header
int	indx The start index for reading operations
java.util.logging.Logger	log Log error and info messages produced during the section's load operation

Constructor Summary

SectGen()
Constructs a SectGen with an anonymous logger

SectGen(java.util.logging.Logger log)
Constructs a SectGen that uses a specific logger

Method Summary

void	Load(javax.imageio.stream.FileImageOutputStream fHandle, int idx) Retrieves the header and data part of the section from the specified FileImageOutputStream starting at index "idx" and stores them in the "head" and "data" variables.
void	Parse(int lNum) An empty method to be overridden by classes that extends this one.
void	PrnInfo() An empty method to be overridden by classes that extends this one.
byte	readByte() Reads a byte from "data" starting at index "indx", and returns it as a byte value.
void	readFully(byte[] dest) Reads "dest.len" bytes from "data" starting at index "idx", and stores them into "dest".
int	readInt() Reads four bytes from "data" starting at index "indx", and (conceptually) concatenates them according to Little Endian byte order, and returns the result as an int value.
short	readShort() Reads two bytes from "data" starting at index "indx", and (conceptually) concatenates them according to Little Endian byte order, and returns the result as a short value.

Methods inherited from class java.lang.Object

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

Field Detail

head

public SectHeader head

Stores the section's header

data

public byte[] data

Stores the section's data part

log

public java.util.logging.Logger log

Log error and info messages produced during the section's load operation

indx

public int indx

The start index for reading operations

Constructor Detail

SectGen

public SectGen()

Constructs a SectGen with an anonymous logger

SectGen

public SectGen(java.util.logging.Logger log)

Constructs a SectGen that uses a specific logger

Parameters:

log - the logger to be used

Method Detail

readByte

public byte readByte()

Reads a byte from "data" starting at index "indx", and returns it as a byte value.

Returns:

A byte value

Throws:

java.lang.IndexOutOfBoundsException - if the index "idx" is greater tha the array length.

readShort

public short readShort()

Reads two bytes from "data" starting at index "indx", and (conceptually) concatenates them according to Little Endian byte order, and returns the result as a short value.

Returns:

A short value

Throws:

java.lang.IndexOutOfBoundsException - if the end of the array is reached before all bytes are read.

readInt

public int readInt()

Reads four bytes from "data" starting at index "indx", and (conceptually) concatenates them according to Little Endian byte order, and returns the result as an int value.

Returns:

An int value

Throws:

java.lang.IndexOutOfBoundsException - if the end of the array is reached before all bytes are read.

readFully

public void readFully(byte[] dest)

Reads "dest.len" bytes from "data" starting at index "idx", and stores them into "dest". If the end of the "data" array is reached, an EOFException will be thrown.

Parameters:

dest - an array of bytes

Throws:

java.lang.IndexOutOfBoundsException - if the stream reaches the end before reading all the bytes. Bytes already read are stored anyway.

Load

public void Load(javax.imageio.stream.FileImageOutputStream fHandle,
                 int idx)
          throws java.lang.Exception

Retrieves the header and data part of the section from the specified FileImageOutputStream starting at index "idx" and stores them in the "head" and "data" variables.

Parameters:

fHandle - a FileImageInputStream pointing at the source file

idx - an int representing the index of the first byte of the section in the source file.

Throws:

java.lang.Exception - if the operation fails

Parse

public void Parse(int lNum)
           throws java.lang.Exception

An empty method to be overridden by classes that extends this one.

Parameters:

lNum - total number of leads stored in the SCP-ECG record (irrilevant for some sections)

Throws:

java.lang.Exception - if any error occurs

PrnInfo

public void PrnInfo()

An empty method to be overridden by classes that extends this one.