com.devexperts.qd.qtp

Class ByteArrayParser

java.lang.Object

com.devexperts.qd.qtp.AbstractQTPParser

com.devexperts.qd.qtp.BinaryQTPParser

com.devexperts.qd.qtp.ByteArrayParser

Deprecated.

Use BinaryQTPParser

public class ByteArrayParser
extends BinaryQTPParser

Deprecated class that parses QTP messages in binary format from a single byte array.

Use BinaryQTPParser instead. Note, that unlike this ByteArrayParser, you have to specify an input to use with BinaryQTPParser using its setInput method. The recommended choice of input is ChunkedInput which work with a ChunkList of byte arrays that can come from a pool.

Nested Class Summary

Nested classes/interfaces inherited from class com.devexperts.qd.qtp.BinaryQTPParser

BinaryQTPParser.CorruptedException, BinaryQTPParser.CorruptedMessageException

Field Summary

Fields

Modifier and Type	Field and Description
protected com.devexperts.io.ByteArrayInput	in Deprecated. Exposed input for backwards compatibility with code that invokes in.setBuffer to parse array of bytes.

Fields inherited from class com.devexperts.qd.qtp.BinaryQTPParser

symbolReader

Fields inherited from class com.devexperts.qd.qtp.AbstractQTPParser

eventTimeSequence, fieldReplacers, mixedSubscription, readEventTimeSequence, scheme, stats

Constructor Summary

Constructors

Constructor and Description
ByteArrayParser(DataScheme scheme) Deprecated. Use BinaryQTPParser
ByteArrayParser(DataScheme scheme, boolean parseDescribe) Deprecated. Use BinaryQTPParser

Method Summary

Modifier and Type	Method and Description
void	addBytes(byte[] bytes, int offset, int length) Deprecated. Adds specified bytes to the end of byte array buffer.
void	ensureCapacity(int requiredCapacity) Deprecated. Ensures that byte array buffer has at least specified capacity.
byte[]	getBuffer() Deprecated. Returns byte array buffer where data is stored.
int	getLimit() Deprecated. Returns number of bytes in the buffer.
int	getProcessed() Deprecated. Returns number of processed bytes ready to be removed.
protected boolean	isSchemeKnown() Deprecated.
void	removeBytes(int n) Deprecated. Removes specified number of bytes from the start of the buffer.
void	resetBuffer() Deprecated.
void	setInput(com.devexperts.io.BufferedInput input) Deprecated. Changes input to parse messages from.
void	setLimit(int newLimit) Deprecated. Sets new value for number of bytes in the buffer.

Methods inherited from class com.devexperts.qd.qtp.BinaryQTPParser

doAfterMessageBody, doAfterMessageType, doBeforeMessageLength, newRecordMap, parseImpl, readRecordId, readSubscriptionTime, readSymbol, remapRecord, resetSession, resyncOnCorrupted, resyncOnParse, wrapRecordDesc

Methods inherited from class com.devexperts.qd.qtp.AbstractQTPParser

applyReadAs, getRecordBufferMode, nextRecordsMessage, parse, processPending, readAs, replaceFieldIfNeeded, setEventTimeSequence, setEventTimeSequenceIfNeeded, setFieldReplacers, setMixedSubscription, setReadEventTimeSequence, setStats

Methods inherited from class java.lang.Object

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

Field Detail

in

protected final com.devexperts.io.ByteArrayInput in

Deprecated.

Exposed input for backwards compatibility with code that invokes in.setBuffer to parse array of bytes.

Constructor Detail

ByteArrayParser

public ByteArrayParser(DataScheme scheme)

Deprecated. Use BinaryQTPParser

Constructs parser with a specified scheme that accepts messages without record descriptions.

Parameters:

scheme - data scheme to use.

ByteArrayParser

public ByteArrayParser(DataScheme scheme,
                       boolean parseDescribe)

Deprecated. Use BinaryQTPParser

Constructs parser with a specified scheme and parse description mode. parseDescribe is a legacy name. Record description messages are always parsed by this class, but parseDescribe is false, then "schemeKnown" flag is set to true and the parser will not report error on records without descriptions.

Parameters:

scheme - data scheme to use.

parseDescribe - parse description mode.

Method Detail

setInput

public void setInput(com.devexperts.io.BufferedInput input)

Deprecated.

Changes input to parse messages from. This implementation throws UnsupportedOperationException.

Overrides:

setInput in class AbstractQTPParser

Parameters:

input - input to parse messages from.

isSchemeKnown

protected boolean isSchemeKnown()

Deprecated.

Overrides:

isSchemeKnown in class BinaryQTPParser

getLimit

public int getLimit()

Deprecated.

Returns number of bytes in the buffer.

Returns:

number of bytes in the buffer.

getProcessed

public int getProcessed()

Deprecated.

Returns number of processed bytes ready to be removed.

Returns:

number of processed bytes ready to be removed.

getBuffer

public byte[] getBuffer()

Deprecated.

Returns byte array buffer where data is stored. Valid index range is from zero inclusive to the limit exclusive.

Note: the array instance used for buffering may change if new messages are added or previous ones are removed.

Returns:

byte array buffer.

removeBytes

public void removeBytes(int n)

Deprecated.

Removes specified number of bytes from the start of the buffer.

Parameters:

n - number of bytes to remove.

Throws:

IllegalArgumentException - if specified number is negative or is larger than the number of processed bytes.

resetBuffer

public void resetBuffer()

Deprecated.

addBytes

public void addBytes(byte[] bytes,
                     int offset,
                     int length)

Deprecated.

Adds specified bytes to the end of byte array buffer.

Parameters:

bytes - array to get bytes from.

offset - position of the first byte in bytes

length - number of bytes to add.

Throws:

IndexOutOfBoundsException - if copying would cause access of data outside specified byte array bounds.

setLimit

public void setLimit(int newLimit)

Deprecated.

Sets new value for number of bytes in the buffer.

Parameters:

newLimit - new value for number of bytes in the buffer.

Throws:

IllegalArgumentException - if specified limit is less than the number of processed bytes or is larger than the buffer capacity.

ensureCapacity

public void ensureCapacity(int requiredCapacity)

Deprecated.

Ensures that byte array buffer has at least specified capacity.

Note: the array instance used for buffering may change if new messages are added or previous ones are removed. This means that specified capacity is valid only until next operation.

Parameters:

requiredCapacity - capacity to ensure.