com.aquenos.epics.jackie.common.protocol

Class ChannelAccessRepeaterConfirmMessage

java.lang.Object

com.aquenos.epics.jackie.common.protocol.ChannelAccessMessage

com.aquenos.epics.jackie.common.protocol.ChannelAccessRepeaterConfirmMessage

public final class ChannelAccessRepeaterConfirmMessage
extends ChannelAccessMessage

Representation of a REPEATER_CONFIRM message. This message is sent from the repeater to a client in order to confirm that the client has successfully registered with the repeater.

Author:

Sebastian Marsching

See Also:

ChannelAccessCommand.REPEATER_CONFIRM

Field Summary

Fields inherited from class com.aquenos.epics.jackie.common.protocol.ChannelAccessMessage

command, originalMessageHeader

Constructor Summary

Constructors

Constructor and Description
ChannelAccessRepeaterConfirmMessage(java.net.Inet4Address clientAddress) Constructor for creating a REPEATER_CONFIRM message.

Method Summary

Modifier and Type	Method and Description
protected static ChannelAccessRepeaterConfirmMessage	deserialize(ChannelAccessMessageHeader messageHeader, ByteSource byteSource) Constructs a message from a header and a byte source.
boolean	equals(java.lang.Object obj) Tells whether the specified object represents the same message.
java.net.Inet4Address	getClientAddress() Returns the IP with which the client has been registered.
int	hashCode() Returns a hash code value for this message.
protected void	serialize(ByteSink byteSink, ChannelAccessVersion version, int maxPayloadSize, java.nio.charset.Charset charset) Serializes this message to a byte sink.
java.lang.String	toString() Returns a string representation of this message.

Methods inherited from class com.aquenos.epics.jackie.common.protocol.ChannelAccessMessage

addByteArrayToStringBuilder, calculatePaddingSize, getCommand, getOriginalMessageHeader, hasOriginalMessageHeader, serializeHeader, verify, verifyHeader

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ChannelAccessRepeaterConfirmMessage

public ChannelAccessRepeaterConfirmMessage(java.net.Inet4Address clientAddress)

Constructor for creating a REPEATER_CONFIRM message. This constructor should be used for messages that are sent from a repeater to a client.

Parameters:

clientAddress - the address of the client that has been registered. A client could use this information to identify which of its registration attempts have been successful, if it tried to register with multiple addresses.

Method Detail

getClientAddress

public java.net.Inet4Address getClientAddress()

Returns the IP with which the client has been registered. A client could use this information to identify which of its registration attempts have been successful, if it tried to register with multiple addresses.

Returns:

client IP address.

equals

public boolean equals(java.lang.Object obj)

Description copied from class: ChannelAccessMessage

Tells whether the specified object represents the same message.

Two messages are considered equal if they are of the same type and have the same headers and payload. For comparing the types, the actual Java type and not just the Channel Access command is compared.

Overrides:

equals in class ChannelAccessMessage

Parameters:

obj - reference object with which this object is compared.

Returns:

true if obj is a message that is of the same type and has the same headers and payload as this message. false if obj is null or of a different type than this message or differs in the headers or payload.

hashCode

public int hashCode()

Description copied from class: ChannelAccessMessage

Returns a hash code value for this message. This method is supported for the benefit of hash tables. The hash code is calculated as a combination of the hash codes of this messages headers (including the Channel Access command) and its payload (if present).

If two messages are equal (as indicated by the return value of ChannelAccessMessage.equals(Object)), they also have the same hash code. However, the fact that two messages have the same hash code does not imply that they are equal.

Overrides:

hashCode in class ChannelAccessMessage

Returns:

hash code suitable for use by a hash table.

toString

public java.lang.String toString()

Description copied from class: ChannelAccessMessage

Returns a string representation of this message. The string representation contains the messages command, its header fields (if relevant for the command type) and its payload if present.

Overrides:

toString in class ChannelAccessMessage

Returns:

string representation of this message.

serialize

protected void serialize(ByteSink byteSink,
                         ChannelAccessVersion version,
                         int maxPayloadSize,
                         java.nio.charset.Charset charset)

Description copied from class: ChannelAccessMessage

Serializes this message to a byte sink. This method is only intended to be used by ChannelAccessMessageCodec.

Specified by:

serialize in class ChannelAccessMessage

Parameters:

byteSink - byte sink that is used for writing the serialized data.

version - protocol version to stay compatible with. This is the protocol version of the peer the message is sent to.

maxPayloadSize - maximum size of the payload.

charset - encoding to use for serializing the string data (e.g. channel names, error strings, string data-values).

deserialize

protected static ChannelAccessRepeaterConfirmMessage deserialize(ChannelAccessMessageHeader messageHeader,
                                                                 ByteSource byteSource)

Constructs a message from a header and a byte source. This method is only intended for use by ChannelAccessMessageCodec.

Parameters:

messageHeader - CA message header.

byteSource - byte source for reading the message's payload (if any).

Returns:

message constructed from the data in the header and the payload read from the byte source (if headerOnly is false).

Throws:

java.nio.BufferUnderflowException - if there is not enough data in the byte source to read the complete message (including he payload if headerOnly is false).