com.siemens.ct.exi.core.io.channel

Class AbstractDecoderChannel

java.lang.Object

com.siemens.ct.exi.core.io.channel.AbstractDecoderChannel

All Implemented Interfaces:

DecoderChannel

Direct Known Subclasses:

BitDecoderChannel, ByteDecoderChannel

public abstract class AbstractDecoderChannel
extends Object
implements DecoderChannel

Author:

Daniel.Peintner.EXT@siemens.com, Richard.Kuntschke@siemens.com

Field Summary

Fields

Modifier and Type	Field and Description
protected StringBuilder	sbHelper

Constructor Summary

Constructors

Constructor and Description
AbstractDecoderChannel()

Method Summary

Modifier and Type	Method and Description
BooleanValue	decodeBooleanValue()
DateTimeValue	decodeDateTimeValue(DateTimeType type) Decode Date-Time as sequence of values representing the individual components of the Date-Time.
DecimalValue	decodeDecimalValue() Decode a decimal represented as a Boolean sign followed by two Unsigned Integers.
FloatValue	decodeFloatValue() Decode a Float represented as two consecutive Integers.
protected int	decodeInteger() Decode an arbitrary precision integer using a sign bit followed by a sequence of octets.
IntegerValue	decodeIntegerValue() Decode an arbitrary precision integer using a sign bit followed by a sequence of octets.
protected long	decodeLong()
IntegerValue	decodeNBitUnsignedIntegerValue(int n) Decodes and returns an n-bit unsigned integer as string.
char[]	decodeString() Decode a string as a length-prefixed sequence of UCS codepoints, each of which is encoded as an integer.
char[]	decodeStringOnly(int length) Decode the characters of a string whose length (#code-points) has already been read.
int	decodeUnsignedInteger() Decode an arbitrary precision non negative integer using a sequence of octets.
IntegerValue	decodeUnsignedIntegerValue()
protected IntegerValue	decodeUnsignedIntegerValue(boolean negative)
protected long	decodeUnsignedLong()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.siemens.ct.exi.core.io.channel.DecoderChannel

align, decode, decodeBinary, decodeBoolean, decodeNBitUnsignedInteger, skip

Field Detail

sbHelper

protected StringBuilder sbHelper

Constructor Detail

AbstractDecoderChannel

public AbstractDecoderChannel()

Method Detail

decodeBooleanValue

public BooleanValue decodeBooleanValue()
                                throws IOException

Specified by:

decodeBooleanValue in interface DecoderChannel

Throws:

IOException

decodeString

public char[] decodeString()
                    throws IOException

Decode a string as a length-prefixed sequence of UCS codepoints, each of which is encoded as an integer. Look for codepoints of more than 16 bits that are represented as UTF-16 surrogate pairs in Java.

Specified by:

decodeString in interface DecoderChannel

Returns:

characters

Throws:

IOException - IO exception

decodeStringOnly

public char[] decodeStringOnly(int length)
                        throws IOException

Decode the characters of a string whose length (#code-points) has already been read. Look for codepoints of more than 16 bits that are represented as UTF-16 surrogate pairs in Java.

Specified by:

decodeStringOnly in interface DecoderChannel

Parameters:

length - Length of the character sequence to read.

Returns:

The character sequence as a string.

Throws:

IOException - IO exception

decodeUnsignedInteger

public final int decodeUnsignedInteger()
                                throws IOException

Decode an arbitrary precision non negative integer using a sequence of octets. The most significant bit of the last octet is set to zero to indicate sequence termination. Only seven bits per octet are used to store the integer's value.

Specified by:

decodeUnsignedInteger in interface DecoderChannel

Returns:

unsigned integer

Throws:

IOException - IO exception

decodeUnsignedLong

protected long decodeUnsignedLong()
                           throws IOException

Throws:

IOException

decodeInteger

protected int decodeInteger()
                     throws IOException

Decode an arbitrary precision integer using a sign bit followed by a sequence of octets. The most significant bit of the last octet is set to zero to indicate sequence termination. Only seven bits per octet are used to store the integer's value.

Returns:

integer

Throws:

IOException - IO exception

decodeLong

protected long decodeLong()
                   throws IOException

Throws:

IOException

decodeIntegerValue

public IntegerValue decodeIntegerValue()
                                throws IOException

Description copied from interface: DecoderChannel

Decode an arbitrary precision integer using a sign bit followed by a sequence of octets. The most significant bit of the last octet is set to zero to indicate sequence termination. Only seven bits per octet are used to store the integer's value.

Specified by:

decodeIntegerValue in interface DecoderChannel

Returns:

integer value

Throws:

IOException - IO exception

decodeUnsignedIntegerValue

public IntegerValue decodeUnsignedIntegerValue()
                                        throws IOException

Specified by:

decodeUnsignedIntegerValue in interface DecoderChannel

Throws:

IOException

decodeUnsignedIntegerValue

protected final IntegerValue decodeUnsignedIntegerValue(boolean negative)
                                                 throws IOException

Throws:

IOException

decodeNBitUnsignedIntegerValue

public IntegerValue decodeNBitUnsignedIntegerValue(int n)
                                            throws IOException

Decodes and returns an n-bit unsigned integer as string.

Specified by:

decodeNBitUnsignedIntegerValue in interface DecoderChannel

Throws:

IOException

decodeDecimalValue

public DecimalValue decodeDecimalValue()
                                throws IOException

Decode a decimal represented as a Boolean sign followed by two Unsigned Integers. A sign value of zero (0) is used to represent positive Decimal values and a sign value of one (1) is used to represent negative Decimal values The first Integer represents the integral portion of the Decimal value. The second positive integer represents the fractional portion of the decimal with the digits in reverse order to preserve leading zeros.

Specified by:

decodeDecimalValue in interface DecoderChannel

Returns:

decimal value

Throws:

IOException - IO exception

decodeFloatValue

public FloatValue decodeFloatValue()
                            throws IOException

Decode a Float represented as two consecutive Integers. The first Integer represents the mantissa of the floating point number and the second Integer represents the 10-based exponent of the floating point number

Specified by:

decodeFloatValue in interface DecoderChannel

Returns:

float value

Throws:

IOException - IO exception

decodeDateTimeValue

public DateTimeValue decodeDateTimeValue(DateTimeType type)
                                  throws IOException

Decode Date-Time as sequence of values representing the individual components of the Date-Time.

Specified by:

decodeDateTimeValue in interface DecoderChannel

Parameters:

type - date-Time type

Returns:

date-time value

Throws:

IOException - IO exception