Leg (ipsmgw 2.9.0)

```
public interface Leg
```

Field Summary

Fields
Modifier and Type Field and Description

static java.lang.String SEND_MESSAGE_FAILED_INSTRUCTION
Send Message instruction value, used in FailedInstruction.

Fields
Modifier and Type	Field and Description
`static java.lang.String`	`SEND_MESSAGE_FAILED_INSTRUCTION` Send Message instruction value, used in `FailedInstruction`.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addAdditionalTrackingKeys(java.lang.String... additionalTrackingKeys)` Add one or more additional tracking keys to the set of additional keys used to track this leg.
`Leg`	`downstreamFork(SipSession session, java.lang.String legName)` Immediate create a new leg which is a downstream fork to this leg, associate it with the provided SipSession and attach the Sentinel service SBB to the ACI of the SipSession.
`boolean`	`endInviteSession()` Queue an instruction to release an INVITE-initiated dialog during instruction processing.
`boolean`	`endSubscription(SubscribedEventID eventID)` Queue an instruction to end a given subscription.
`boolean`	`endSubscription(SubscribedEventID eventID, MessageBody messageBody)` Queue an instruction to end a given subscription.
`boolean`	`endSubscription(SubscribedEventID eventID, java.lang.String reason)` Queue an instruction to end a given subscription.
`boolean`	`endSubscription(SubscribedEventID eventID, java.lang.String reason, MessageBody messageBody)` Queue an instruction to end a given subscription.
`boolean`	`endSubscriptions()` Queue an instruction to end all subscriptions on this leg.
`boolean`	`endSubscriptions(java.lang.String reason)` Queue an instruction to end all subscriptions on this leg.
`javax.slee.ActivityContextInterface`	`getAci()` Return the ACI for this leg.
`java.util.Map<java.lang.String,java.lang.String>`	`getAdditionalTrackedAttributes()` Get the map of additional attribute name/values used for session tracking on this leg.
`java.util.Set<java.lang.String>`	`getAdditionalTrackingKeys()` Get the set of additional keys used for session tracking on this leg.
`SessionDescriptionWrapper`	`getCommittedSDP()` Return the committed SDP on this session.
`java.lang.Long`	`getCommittedSDPSequenceNumber()` Return the committed SDP sequence number on this session.
`DialogID`	`getDialogID()` Gets the Dialog ID of the SipSession for this leg.
`java.util.Set<Leg>`	`getDownstreamForkedLegs()` Return the set of legs including this leg which are included in a downstream fork session set.
`boolean`	`getHasOutstandingSDPOffer()` Return whether there is an oustanding SDP offer on this leg
`SipRequest`	`getInitialSubscribe()` Return the initial SUBSCRIBE SIP request sent/received on this leg/session.
`SipRequest`	`getInviteRequest()` Return the initial INVITE SIP request sent/received on this leg/session.
`java.lang.Long`	`getLastTrackingDataChangeTime()` Gets the timestamp of the last update to any of the session tracking fields on this leg.
`SipRequest`	`getLatestIncomingRequest(java.lang.String method)` Return the latest SIP request received on this leg/session with the given method.
`SipRequest`	`getLatestInviteRequest()` Return the latest Invite SIP request sent/received on this leg/session.
`long`	`getLatestMessageTimestamp()` Return the time of the last message sent or received on this leg.
`SessionDescriptionWrapper`	`getLatestReceivedSDP()` Return the latest SDP received on this session.
`java.lang.Long`	`getLatestReceivedSDPSequenceNumber()` Return the latest received SDP sequence number on this session.
`SipRequest`	`getLatestRequest()` Return the latest SIP request sent/received on this leg/session.
`SipResponse`	`getLatestResponse()` Return the latest SIP response sent/received on this leg/session.
`SessionDescriptionWrapper`	`getLatestSentSDP()` Return he latest SDP sent on this session.
`java.lang.Long`	`getLatestSentSDPSequenceNumber()` Return the latest sent SDP sequence number on this session.
`java.lang.String`	`getLegName()` The name assigned to the leg by the core or by a feature.
`Leg`	`getLinkedLeg()` Return the leg linked to this leg.
`SipMessageQueue`	`getMessagesToSend()` Return the MessagesToSend queue `Iterable` containing messages to be sent on this leg/session.
`java.util.Set<java.lang.String>`	`getOutstandingTransactionsByMethod()` Return a list of SipRequest methods for all outstanding transactions on this leg.
`java.lang.String`	`getOwner()` Gets the URI string of the node that currently owns this leg.
`java.util.Set<Leg>`	`getParallelForkedLegs()` Return a set of legs including this leg which are included in a parallel fork session set.
`SessionDescriptionWrapper`	`getPreviousCommittedSDP()` Return the previous committed SDP on this session.
`SessionDescriptionWrapper`	`getPreviousReceivedSDP()` Return the previous SDP received on this session.
`java.lang.Long`	`getPreviousReceivedSDPSequenceNumber()` Return the previously received SDP sequence number on this session.
`SessionDescriptionWrapper`	`getPreviousSentSDP()` Return the previous SDP sent on this session.
`java.lang.Long`	`getPreviousSentSDPSequenceNumber()` Return the previously sent SDP sequence number on this session.
`SipSession`	`getSipSession()` Return the SipSession for this leg .
`java.util.Set<SubscribedEventID>`	`getSubscriptions()` Return set of active subscriptions on this leg.
`java.util.Set<Leg>`	`getUpstreamForkedLegs()` Return a set of legs including this leg which are included in an upstream fork session set.
`boolean`	`isActive()` Return true if leg is Active.
`boolean`	`isDownstreamForked()` Return true if this leg is part of a set of downstream forked legs.
`boolean`	`isLinked()` Return true if this leg is linked to another leg.
`boolean`	`isParallelForked()` Return true if this leg is part of a set of parallel forked legs
`boolean`	`isSuspended()`
`boolean`	`isTrackingEnabled()` Get the value of the tracking enabled flag, which indicates if session tracking is enabled for this leg.
`boolean`	`isUpstreamForked()` Return true if this leg is part of a set of upstream forked legs.
`boolean`	`isWaitForTrackingResultEnabled()` Get the value of the wait for tracking result enabled flag, which indicates whether session tracking should pause session processing while session ownership store operations for this leg are in progress.
`void`	`linkLeg(Leg leg)` Immediately link this leg to the leg provided as an argument.
`Leg`	`parallelFork(OutgoingSipRequest inviteToBeSentOnForkedLeg, java.lang.String forkedLegName)` Immediately create a new leg which is a parallel fork to this leg and attach the Sentinel service SBB to the ACI of the inviteToBeSentOnForkedLeg SipSession.
`void`	`proxySessionAndDoNotRecordRoute()` Proxy the initial request received on the leg using the URI received in the initial request.
`void`	`proxySessionAndDoNotRecordRoute(URI newRequestUri)` Proxy the initial request received on the leg using a different request URI.
`void`	`proxySessionAndDoNotRecordRoute(URI[] newRequestUris)` Proxy the session to continue using different request URIs and remove Sentinel from the route.
`ProxyResult`	`proxySessionInternal(URI newRequestUri)` Proxy the session to continue using different request URIs and remove Sentinel from the route.
`void`	`refreshSession(long refreshPeriod, boolean useUpdate)` Queue an instruction to perform session refresh on the leg when the leg manager is requested to execute instructions.
`void`	`resume()` Resume sending messages from this queue.
`void`	`sendCancel()` Queues a CANCEL to the initial INVITE on the leg's MessagesToSend queue.
`void`	`sendMessage(SipMessage requestOrResponseToBeSent)` Queue the SipRequest or SipResponse in the MessagesToSend queue for the leg.
`void`	`setAdditionalTrackedAttributes(java.util.Map<java.lang.String,java.lang.String> additionalTrackedAttributes)` Set the map of additional tracked attributes used for session tracking on this leg.
`void`	`setCommittedSDP(SessionDescriptionWrapper sdp)` Set the committed SDP on this session.
`void`	`setCommittedSDPSequenceNumber(java.lang.Long number)` Set the committed SDP sequence number on this session.
`void`	`setHasOutstandingSDPOffer(boolean hasOutstandingSDPOFfer)` Set whether there is an outstanding SDP offer on this leg
`void`	`setInitialSubscribe(SipRequest subscribe)` Set the initial SUBSCRIBE SIP request sent/received on this leg/session.
`void`	`setInviteRequest(SipRequest request)` Set the initial INVITE SIP request sent/received on this leg/session.
`void`	`setLatestReceivedSDP(SessionDescriptionWrapper sdp)` Set the latest SDP received on this session.
`void`	`setLatestReceivedSDPSequenceNumber(java.lang.Long number)` Set the latest received SDP sequence number on this session.
`void`	`setLatestRequest(SipRequest request)` Set the latest SIP request sent/received on this leg/session.
`void`	`setLatestSentSDP(SessionDescriptionWrapper sdp)` Set the latest SDP sent on this session.
`void`	`setLatestSentSDPSequenceNumber(java.lang.Long number)` Set the latest sent SDP sequence number on this session.
`void`	`setOwner(java.lang.String ownerUri)` Sets the URI string of the node that currently owns this leg.
`void`	`setPreviousCommittedSDP(SessionDescriptionWrapper sdp)` Set the previous committed SDP on this session.
`void`	`setPreviousReceivedSDP(SessionDescriptionWrapper sdp)` Set the previous SDP received on this session.
`void`	`setPreviousReceivedSDPSequenceNumber(java.lang.Long number)` Set the previously received SDP sequence number on this session.
`void`	`setPreviousSentSDP(SessionDescriptionWrapper sdp)` Set the previous SDP sent on this session.
`void`	`setPreviousSentSDPSequenceNumber(java.lang.Long number)` Set the previous sent SDP sequence number on this session.
`void`	`setTrackingEnabled(boolean trackingEnabled)` Sets whether session tracking should be enabled for this leg.
`void`	`setWaitForTrackingResultEnabled(boolean waitForTrackingResultEnabled)` Set the value of the wait for tracking result enabled flag, which indicates whether session tracking should pause session processing while session ownership operations for this leg are in progress.
`void`	`suspend()` Suspend sending messages from the message queue.
`void`	`unlinkLeg()` Immediately unlink this leg from the leg linked to it, if any.
`Leg`	`upstreamFork(OutgoingSipRequest notify, java.lang.String forkedLegName)` Immediately create a new leg which is an upstream fork to this leg resulting from a forked subscription and attach the Sentinel service SBB to the ACI of the notify request SipSession.
`Leg`	`upstreamFork(OutgoingSipResponse responseToBeSent, java.lang.String forkedLegName)` Immediately create a new leg which is an upstream fork to this leg and attach the Sentinel service SBB to the ACI of the responseToBeSent SipSession.

- Field Detail
  - SEND_MESSAGE_FAILED_INSTRUCTION
```
static final java.lang.String SEND_MESSAGE_FAILED_INSTRUCTION
```
    Send Message instruction value, used in FailedInstruction.
    
    See Also:
    Constant Field Values
- Method Detail
  - getLegName
```
java.lang.String getLegName()
```
    The name assigned to the leg by the core or by a feature. The name must be unique for the Sentinel SIP instance:
    The following well known leg names are used:
    1. calledParty
    2. callingParty
    As Leg is not serializable, the legName is used to store a reference to the leg. The Leg associated with the legName is obtained using the LegManager.getLeg(String) method.
    Returns:
    Unique leg name for this leg.
  - sendMessage
```
void sendMessage(SipMessage requestOrResponseToBeSent)
                 throws TransactionInProgressException
```
    Queue the SipRequest or SipResponse in the MessagesToSend queue for the leg.
    Multiple message may be sent on a single leg, each method call will queue the supplied message. During instruction execution the LegManager will send the messages in FIFO order. For instance:
    - ACK + INVITE - required when playing announcements
    - 181 + ERROR - CDIV when max forwards reached
    The request or response queued may be subsequently removed or altered. The pending message queue for the leg is accessed using getMessagesToSend().
    Parameters:
    requestOrResponseToBeSent - SipMessage to be sent on this leg.
    
    Throws:
    
    TransactionInProgressException
  - sendCancel
```
void sendCancel()
```
    Queues a CANCEL to the initial INVITE on the leg's MessagesToSend queue. The queued CANCEL may be subsequently removed or altered. The pending message queue for the leg is accessed using getMessagesToSend().
  - parallelFork
```
Leg parallelFork(OutgoingSipRequest inviteToBeSentOnForkedLeg,
               java.lang.String forkedLegName)
                 throws DuplicateLegException
```
    Immediately create a new leg which is a parallel fork to this leg and attach the Sentinel service SBB to the ACI of the inviteToBeSentOnForkedLeg SipSession. Queue the inviteToBeSentOnForkedLeg INVITE on the MessagesToSend queue of the forked leg.
    If the leg is not in a parallel forked group then add both legs to a parallel forked group. If the leg is already part of a parallel forked group then add the new leg to that group.
    On return isParallelForked() will return true. On return a call getParallelForkedLegs() will include the leg and new forked leg and any other legs that are already parallel forks of the legs.
    
    Parameters:
    inviteToBeSentOnForkedLeg - Outgoing Invite to be sent.
    forkedLegName - the new parallel fork leg name, it must be unique. legNames are case sensitive.
    
    Throws:
    
    DuplicateLegException - If leg already exists with the supplied name.
  - upstreamFork
```
Leg upstreamFork(OutgoingSipResponse responseToBeSent,
               java.lang.String forkedLegName)
                 throws DuplicateLegException
```
    Immediately create a new leg which is an upstream fork to this leg and attach the Sentinel service SBB to the ACI of the responseToBeSent SipSession. Queue the responseToBeSent on the MessagesToSend queue for the new forked leg.
    If the leg is not in a upstream forked group then add both legs to a upstream forked group. If the leg is already part of an upstream forked group then add the new leg to that group.
    On return isUpstreamForked() will return true. On return a call getUpstreamForkedLegs() will include the leg and new forked leg and any other legs that are already parallel forks of the legs.
    
    Parameters:
    responseToBeSent - SipMessage to be sent on this leg.
    forkedLegName - the new upstream fork leg name, it must be unique for this Sentinel SIP service instance. Leg names are case sensitive.
    
    Throws:
    
    DuplicateLegException - If leg already exists with the supplied name.
  - upstreamFork
```
Leg upstreamFork(OutgoingSipRequest notify,
               java.lang.String forkedLegName)
                 throws DuplicateLegException
```
    Immediately create a new leg which is an upstream fork to this leg resulting from a forked subscription and attach the Sentinel service SBB to the ACI of the notify request SipSession. Queue the notify request on the MessagesToSend queue for the new forked leg.
    If the leg is not in a upstream forked group then add both legs to a upstream forked group. If the leg is already part of an upstream forked group then add the new leg to that group.
    On return isUpstreamForked() will return true. On return a call getUpstreamForkedLegs() will include the leg and new forked leg and any other legs
    Reserved for system features.
    
    Parameters:
    notify - Outgoing NOTIFY to be sent.
    forkedLegName - the new upstream fork leg name, it must be unique for this Sentinel SIP service instance. Leg names are case sensitive.
    
    Throws:
    
    DuplicateLegException - If leg already exists with the supplied name.
  - downstreamFork
```
Leg downstreamFork(SipSession session,
                 java.lang.String legName)
                   throws DuplicateLegException
```
    Immediate create a new leg which is a downstream fork to this leg, associate it with the provided SipSession and attach the Sentinel service SBB to the ACI of the SipSession.
    If the leg is not in a downstream forked group then add both legs to a downstream forked group. If the leg is already part of an downstream forked group then add the new leg to that group.
    On return isDownstreamForked() will return true. On return a call getDownstreamForkedLegs() will include the leg and new forked leg and any other legs
    Reserved for system features.
    
    Parameters:
    session - the SipSession of the new downstream fork leg.
    legName - the new downstream fork leg name, it must be unique for this Sentinel SIP service instance. Leg names are case sensitive.
    
    Throws:
    
    DuplicateLegException - If leg already exists with the supplied name.
  - refreshSession
```
void refreshSession(long refreshPeriod,
                  boolean useUpdate)
```
    Queue an instruction to perform session refresh on the leg when the leg manager is requested to execute instructions. During instruction processing a session refresh request procedure is initiated if the configured refresh period for the leg has been exceeded and there isn't a request in progress.
    Reserved for system features.
    
    Parameters:
    refreshPeriod - The time period in seconds of inactivity before needing to send a request to keep session alive
    useUpdate - Use an UPDATE request to refresh the session so long as UPDATE requests are allowed on the leg
  - linkLeg
```
void linkLeg(Leg leg)
             throws LegsAlreadyLinkedException,
                    java.lang.IllegalArgumentException
```
    Immediately link this leg to the leg provided as an argument.
    If the legs are already linked to each other, the legs will remain linked. If either of the legs is linked to another leg then LegsAlreadyLinkedException will be thrown. Legs may not be linked to themselves, and IllegalArgumentException will be thrown if this is attempted.
    When linked, features may choose to act as a B2BUA between those legs.
    
    Parameters:
    leg - the leg to link with this leg.
    
    Throws:
    
    LegsAlreadyLinkedException - if either of the legs are currently linked to another leg.
    
    java.lang.IllegalArgumentException - when supplied leg is null or is the same as this leg.
  - unlinkLeg
```
void unlinkLeg()
```
    Immediately unlink this leg from the leg linked to it, if any. If the leg is not actually linked, there is no effect.
  - getLinkedLeg
```
Leg getLinkedLeg()
```
    Return the leg linked to this leg.
    
    Returns:
    the leg linked to this leg, otherwise return null.
  - isLinked
```
boolean isLinked()
```
    Return true if this leg is linked to another leg.
    
    Returns:
    true if this leg is linked to another leg, otherwise return false.
  - isDownstreamForked
```
boolean isDownstreamForked()
```
    Return true if this leg is part of a set of downstream forked legs.
    
    Returns:
    true if this leg is a downstream forked leg, otherwise return false.
  - getDownstreamForkedLegs
```
java.util.Set<Leg> getDownstreamForkedLegs()
```
    Return the set of legs including this leg which are included in a downstream fork session set. If isDownstreamForked() return false calls to this method will return an empty collection.
    
    Returns:
    Set of downstream fork legs that this leg is a part of, otherwise return an empty collection.
  - isUpstreamForked
```
boolean isUpstreamForked()
```
    Return true if this leg is part of a set of upstream forked legs.
    
    Returns:
    true if this leg is an upstream forked leg, otherwise return false.
  - getUpstreamForkedLegs
```
java.util.Set<Leg> getUpstreamForkedLegs()
```
    Return a set of legs including this leg which are included in an upstream fork session set. If isUpstreamForked() return false calls to this method will return a empty collection.
    
    Returns:
    Set of upstream fork legs that this leg is a part of, otherwise return an empty collection.
  - isParallelForked
```
boolean isParallelForked()
```
    Return true if this leg is part of a set of parallel forked legs
    
    Returns:
    true if this leg is a parallel forked leg, otherwise return false.
  - getParallelForkedLegs
```
java.util.Set<Leg> getParallelForkedLegs()
```
    Return a set of legs including this leg which are included in a parallel fork session set. If isParallelForked() return false calls to this method will return a empty collection.
    
    Returns:
    Set of parallel fork legs that this leg is a part of, otherwise return an empty collection.
  - isActive
```
boolean isActive()
```
    Return true if leg is Active.
    
    Returns:
    true if leg is attached to a SIP Session, otherwise return false.
  - getSipSession
```
SipSession getSipSession()
```
    Return the SipSession for this leg .
    
    Returns:
    SipSession for this leg.
  - getAci
```
javax.slee.ActivityContextInterface getAci()
```
    Return the ACI for this leg.
    
    Returns:
    ACI for this leg.
  - getLatestMessageTimestamp
```
long getLatestMessageTimestamp()
```
    Return the time of the last message sent or received on this leg.
    
    Returns:
    milliseconds from the epoch 00:00:00, January 1, 1970 UTC to time that the last message on leg was sent.
  - getInviteRequest
```
SipRequest getInviteRequest()
```
    Return the initial INVITE SIP request sent/received on this leg/session.
    
    Returns:
    The initial INVITE SIP request sent/received on this leg.
  - setInviteRequest
```
void setInviteRequest(SipRequest request)
```
    Set the initial INVITE SIP request sent/received on this leg/session.
    
    Parameters:
    request - The initial INVITE SIP request sent/received on this leg.
  - getLatestInviteRequest
```
SipRequest getLatestInviteRequest()
```
    Return the latest Invite SIP request sent/received on this leg/session.
    
    Returns:
    The latest Invite SIP request sent/received on this leg/session.
  - setInitialSubscribe
```
void setInitialSubscribe(SipRequest subscribe)
```
    Set the initial SUBSCRIBE SIP request sent/received on this leg/session.
    
    Parameters:
    subscribe - The initial SUBSCRIBE SIP request sent/received on this leg.
  - getInitialSubscribe
```
SipRequest getInitialSubscribe()
```
    Return the initial SUBSCRIBE SIP request sent/received on this leg/session.
    
    Returns:
    The initial SUBSCRIBE SIP request sent/received on this leg.
  - getLatestRequest
```
SipRequest getLatestRequest()
```
    Return the latest SIP request sent/received on this leg/session.
    
    Returns:
    The latest SIP request sent/received on this leg/session.
  - getLatestIncomingRequest
```
SipRequest getLatestIncomingRequest(java.lang.String method)
```
    Return the latest SIP request received on this leg/session with the given method.
    
    Parameters:
    method - The method of the latest SIP request received on this leg/session with the given method.
    
    Returns:
    The latest SIP request received with the given method on this leg/session.
  - setLatestRequest
```
void setLatestRequest(SipRequest request)
```
    Set the latest SIP request sent/received on this leg/session.
    
    Parameters:
    request - The latest SIP request sent/received on this leg.
  - getLatestResponse
```
SipResponse getLatestResponse()
```
    Return the latest SIP response sent/received on this leg/session.
    
    Returns:
    The latest SIP response sent/received on this leg/session.
  - getMessagesToSend
```
SipMessageQueue getMessagesToSend()
```
    Return the MessagesToSend queue Iterable containing messages to be sent on this leg/session.
    Iterating over the message queue will return all queued items in FIFO order.
```
   final SipMessageQueue queue ...;
   for (SipMessage msgToSend : queue) {
   }
 
```
    Messages are added to this queue by:
    Message are removed from the queue by:
    - endInviteSession()
    The messages in the queue may be modified or removed from the queue using methods on the returned SipMessageQueue.
    Returns:
    Ordered List of SipMessage to be sent on this Leg.
  - getOutstandingTransactionsByMethod
```
java.util.Set<java.lang.String> getOutstandingTransactionsByMethod()
```
    Return a list of SipRequest methods for all outstanding transactions on this leg. This method may be used by features to determine whether to send a request or not based on the current state of outstanding transactions on the leg. The string values are those that are returned by SipRequest#getMethod() and are provided as fields on SipRequest e.g. SipRequest.INVITE.
    
    Returns:
    set of strings of SipRequest methods which have are currently outstanding transactions on this leg.
  - getLatestReceivedSDP
```
SessionDescriptionWrapper getLatestReceivedSDP()
```
    Return the latest SDP received on this session.
    
    Returns:
    The latest SDP received on this Leg.
  - setLatestReceivedSDP
```
void setLatestReceivedSDP(SessionDescriptionWrapper sdp)
```
    Set the latest SDP received on this session.
    
    Parameters:
    sdp - The latest SDP received on this Leg.
  - getLatestSentSDP
```
SessionDescriptionWrapper getLatestSentSDP()
```
    Return he latest SDP sent on this session.
    
    Returns:
    The latest SDP sent on this Leg.
  - setLatestSentSDP
```
void setLatestSentSDP(SessionDescriptionWrapper sdp)
```
    Set the latest SDP sent on this session.
    
    Parameters:
    sdp - The latest SDP sent on this Leg.
  - getCommittedSDP
```
SessionDescriptionWrapper getCommittedSDP()
```
    Return the committed SDP on this session.
    
    Returns:
    The committed SDP on this Leg.
  - setCommittedSDP
```
void setCommittedSDP(SessionDescriptionWrapper sdp)
```
    Set the committed SDP on this session.
    
    Parameters:
    sdp - The committed SDP on this Leg.
  - getLatestSentSDPSequenceNumber
```
java.lang.Long getLatestSentSDPSequenceNumber()
```
    Return the latest sent SDP sequence number on this session.
    
    Returns:
    The latest sent SDP sequence number on this Leg.
  - setLatestSentSDPSequenceNumber
```
void setLatestSentSDPSequenceNumber(java.lang.Long number)
```
    Set the latest sent SDP sequence number on this session.
    
    Parameters:
    number - The latest sent SDP sequence number on this Leg.
  - getPreviousSentSDPSequenceNumber
```
java.lang.Long getPreviousSentSDPSequenceNumber()
```
    Return the previously sent SDP sequence number on this session. That is, the one sent before the latest.
    
    Returns:
    The previous SDP sequence number on this Leg.
  - setPreviousSentSDPSequenceNumber
```
void setPreviousSentSDPSequenceNumber(java.lang.Long number)
```
    Set the previous sent SDP sequence number on this session. That is, the one sent before the latest.
    
    Parameters:
    number - The previous sent SDP sequence number on this Leg.
  - getLatestReceivedSDPSequenceNumber
```
java.lang.Long getLatestReceivedSDPSequenceNumber()
```
    Return the latest received SDP sequence number on this session.
    
    Returns:
    The latest received SDP sequence number on this Leg.
  - setLatestReceivedSDPSequenceNumber
```
void setLatestReceivedSDPSequenceNumber(java.lang.Long number)
```
    Set the latest received SDP sequence number on this session.
    
    Parameters:
    number - The latest received SDP sequence number on this Leg.
  - getPreviousReceivedSDPSequenceNumber
```
java.lang.Long getPreviousReceivedSDPSequenceNumber()
```
    Return the previously received SDP sequence number on this session. That is, the one received before the latest.
    
    Returns:
    The previous received SDP sequence number on this Leg.
  - setPreviousReceivedSDPSequenceNumber
```
void setPreviousReceivedSDPSequenceNumber(java.lang.Long number)
```
    Set the previously received SDP sequence number on this session. That is, the one received before the latest.
    
    Parameters:
    number - The latest received SDP sequence number on this Leg.
  - getPreviousReceivedSDP
```
SessionDescriptionWrapper getPreviousReceivedSDP()
```
    Return the previous SDP received on this session.
    
    Returns:
    The previous SDP received on this Leg.
  - setPreviousReceivedSDP
```
void setPreviousReceivedSDP(SessionDescriptionWrapper sdp)
```
    Set the previous SDP received on this session.
    
    Parameters:
    sdp - The previous SDP received on this Leg.
  - getPreviousSentSDP
```
SessionDescriptionWrapper getPreviousSentSDP()
```
    Return the previous SDP sent on this session.
    
    Returns:
    The previous SDP sent on this Leg.
  - setPreviousSentSDP
```
void setPreviousSentSDP(SessionDescriptionWrapper sdp)
```
    Set the previous SDP sent on this session.
    
    Parameters:
    sdp - The previous SDP sent on this Leg.
  - getCommittedSDPSequenceNumber
```
java.lang.Long getCommittedSDPSequenceNumber()
```
    Return the committed SDP sequence number on this session.
    
    Returns:
    The committed SDP sequence number on this Leg.
  - setCommittedSDPSequenceNumber
```
void setCommittedSDPSequenceNumber(java.lang.Long number)
```
    Set the committed SDP sequence number on this session.
    
    Parameters:
    number - The committed SDP sequence number on this Leg.
  - getPreviousCommittedSDP
```
SessionDescriptionWrapper getPreviousCommittedSDP()
```
    Return the previous committed SDP on this session.
    
    Returns:
    The previous committed SDP on this Leg.
  - setPreviousCommittedSDP
```
void setPreviousCommittedSDP(SessionDescriptionWrapper sdp)
```
    Set the previous committed SDP on this session.
    
    Parameters:
    sdp - The previous committed SDP on this Leg.
  - getHasOutstandingSDPOffer
```
boolean getHasOutstandingSDPOffer()
```
    Return whether there is an oustanding SDP offer on this leg
    
    Returns:
    True iff there is an outstanding SDP offer on this leg
  - setHasOutstandingSDPOffer
```
void setHasOutstandingSDPOffer(boolean hasOutstandingSDPOFfer)
```
    Set whether there is an outstanding SDP offer on this leg
    
    Parameters:
    hasOutstandingSDPOFfer - A boolean specifying
  - isTrackingEnabled
```
boolean isTrackingEnabled()
```
    Get the value of the tracking enabled flag, which indicates if session tracking is enabled for this leg.
    
    Returns:
    true if session tracking is enabled for this leg.
  - setTrackingEnabled
```
void setTrackingEnabled(boolean trackingEnabled)
```
    Sets whether session tracking should be enabled for this leg.
    
    Parameters:
    trackingEnabled - true to enable session tracking, false to disable session tracking.
  - isWaitForTrackingResultEnabled
```
boolean isWaitForTrackingResultEnabled()
```
    Get the value of the wait for tracking result enabled flag, which indicates whether session tracking should pause session processing while session ownership store operations for this leg are in progress. Note that delete operations are not affected by this, the session will never be paused when deleting tracking data.
    
    Returns:
    true if wait for tracking result is enabled for this leg.
  - setWaitForTrackingResultEnabled
```
void setWaitForTrackingResultEnabled(boolean waitForTrackingResultEnabled)
```
    Set the value of the wait for tracking result enabled flag, which indicates whether session tracking should pause session processing while session ownership operations for this leg are in progress. Note that delete operations are not affected by this, the session will never be paused when deleting tracking data.
    
    Parameters:
    waitForTrackingResultEnabled - true to enable wait for tracking result, false to disable wait for tracking result.
  - getAdditionalTrackingKeys
```
java.util.Set<java.lang.String> getAdditionalTrackingKeys()
```
    Get the set of additional keys used for session tracking on this leg. The returned set is a copy of the original so changes to it will not be reflected on the leg unless Leg#setAdditionalTrackingKeys(Set) is called. An empty set will be returned if there are no additional tracking keys set for this leg.
    
    Returns:
    the set of additional keys used for session tracking on this leg.
  - addAdditionalTrackingKeys
```
void addAdditionalTrackingKeys(java.lang.String... additionalTrackingKeys)
```
    Add one or more additional tracking keys to the set of additional keys used to track this leg. Additional tracking keys cannot be removed once added.
    
    Parameters:
    additionalTrackingKeys - additional tracking key(s) to add to this leg
  - getAdditionalTrackedAttributes
```
java.util.Map<java.lang.String,java.lang.String> getAdditionalTrackedAttributes()
```
    Get the map of additional attribute name/values used for session tracking on this leg. The returned map is a copy of the original so changes to it will not be reflected on the leg unless setAdditionalTrackedAttributes(Map) is called. An empty map will be returned if there are no additional tracked attributes for this leg.
    
    Returns:
    the map of additional attribute name/values.
  - setAdditionalTrackedAttributes
```
void setAdditionalTrackedAttributes(java.util.Map<java.lang.String,java.lang.String> additionalTrackedAttributes)
```
    Set the map of additional tracked attributes used for session tracking on this leg.
    
    Parameters:
    additionalTrackedAttributes - the map of additional tracked attributes.
  - getOwner
```
java.lang.String getOwner()
```
    Gets the URI string of the node that currently owns this leg.
    
    Returns:
    The URI of the node that owns this leg (as a String).
  - setOwner
```
void setOwner(java.lang.String ownerUri)
```
    Sets the URI string of the node that currently owns this leg.
    
    Parameters:
    ownerUri - The URI string for the new owner for this leg.
  - getLastTrackingDataChangeTime
```
java.lang.Long getLastTrackingDataChangeTime()
```
    Gets the timestamp of the last update to any of the session tracking fields on this leg. The session tracking fields are: - TrackingEnabled - AdditionalTrackingKeys - AdditionalTrackedAttributes - Owner
    
    Returns:
    The timestamp of the last update to any of the session tracking fields on this leg (unix time in millis)
  - getDialogID
```
DialogID getDialogID()
```
    Gets the Dialog ID of the SipSession for this leg.
    
    Returns:
    The Dialog ID of the SipSession for this leg.
  - proxySessionAndDoNotRecordRoute
```
void proxySessionAndDoNotRecordRoute()
```
    Proxy the initial request received on the leg using the URI received in the initial request. Remove Sentinel from the route.
    Note: when using this method directly the caller will have to to unlink any linked leg's and detach them manually.
  - proxySessionAndDoNotRecordRoute
```
void proxySessionAndDoNotRecordRoute(URI newRequestUri)
```
    Proxy the initial request received on the leg using a different request URI. Remove Sentinel from the route.
    Note: when using this method directly the caller will have to to unlink any linked leg's and detach them manually.
    
    Parameters:
    newRequestUri - the initial request will be proxied to this address.
  - proxySessionAndDoNotRecordRoute
```
void proxySessionAndDoNotRecordRoute(URI[] newRequestUris)
```
    Proxy the session to continue using different request URIs and remove Sentinel from the route.
    Note: when using this method directly the caller will have to to unlink any linked leg's and detach them manually.
    
    Parameters:
    newRequestUris - the initial request will be proxied to these destinations.
  - proxySessionInternal
```
ProxyResult proxySessionInternal(URI newRequestUri)
```
    Proxy the session to continue using different request URIs and remove Sentinel from the route. The URI should point to another node within the Rhino cluster, it will be checked for liveness before attempting to proxy.
    Note: when using this method directly the caller will have to to unlink any linked leg's and detach them manually.
    
    Parameters:
    newRequestUri - the initial request will be proxied to these destinations.
    
    Returns:
    The result of attempting to proxy the request or NOT_PROXIABLE if the request was unsuitable for proxying
  - isSuspended
```
boolean isSuspended()
```
    Returns:
    true if suspended otherwise false
    See Also:
    resume(), suspend()
  - suspend
```
void suspend()
```
    Suspend sending messages from the message queue.
    
    See Also:
    resume(), isSuspended()
  - resume
```
void resume()
```
    Resume sending messages from this queue. The next time the queue is processed the messages will be sent if the queue has not been suspended again.
    
    See Also:
    suspend(), isSuspended()
  - endSubscriptions
```
boolean endSubscriptions()
```
    Queue an instruction to end all subscriptions on this leg. When instruction processing is performed by the LegManager a terminating SUBSCRIBE or NOTIFY will be sent for each subscription.
    
    Returns:
    true if any subscriptions will be terminated during instruction processing, otherwise false.
  - endSubscriptions
```
boolean endSubscriptions(java.lang.String reason)
```
    Queue an instruction to end all subscriptions on this leg. When instruction processing is performed by the LegManager a terminating SUBSCRIBE or NOTIFY will be sent for each subscription.
    
    Parameters:
    reason - the reason for the subscription ending, may be null. See RFC6665 §7.2.
    
    Returns:
    true if any subscriptions will be terminated during instruction processing, otherwise false.
  - endSubscription
```
boolean endSubscription(SubscribedEventID eventID)
```
    Queue an instruction to end a given subscription. When instruction processing is performed by the LegManager a terminating SUBSCRIBE or NOTIFY will be send for the subscription.
    
    Parameters:
    eventID - the SubscribedEventID identifying the subscription to end.
    
    Returns:
    true if a matching subscription was found.
  - endSubscription
```
boolean endSubscription(SubscribedEventID eventID,
                      java.lang.String reason)
```
    Queue an instruction to end a given subscription. When instruction processing is performed by the LegManager a terminating SUBSCRIBE or NOTIFY will be send for the subscription.
    
    Parameters:
    eventID - the SubscribedEventID identifying the subscription to end.
    reason - the reason for the subscription ending, may be null. See RFC6665 §7.2.
    
    Returns:
    true if a matching subscription was found.
  - endSubscription
```
boolean endSubscription(SubscribedEventID eventID,
                      MessageBody messageBody)
```
    Queue an instruction to end a given subscription. When instruction processing is performed by the LegManager a terminating SUBSCRIBE or NOTIFY will be send for the subscription.
    
    Parameters:
    eventID - the SubscribedEventID identifying the subscription to end.
    messageBody - the message body to add to the SUBSCRIBE or NOTIFY
    
    Returns:
    true if a matching subscription was found.
  - endSubscription
```
boolean endSubscription(SubscribedEventID eventID,
                      java.lang.String reason,
                      MessageBody messageBody)
```
    Queue an instruction to end a given subscription. When instruction processing is performed by the LegManager a terminating SUBSCRIBE or NOTIFY will be send for the subscription.
    
    Parameters:
    eventID - the SubscribedEventID identifying the subscription to end.
    reason - the reason for the subscription ending, may be null. See RFC6665 §7.2.
    messageBody - the message body to add to the SUBSCRIBE or NOTIFY
    
    Returns:
    true if a matching subscription was found.
  - getSubscriptions
```
java.util.Set<SubscribedEventID> getSubscriptions()
```
    Return set of active subscriptions on this leg.
    
    Returns:
    a set of SubscribedEventID.
  - endInviteSession
```
boolean endInviteSession()
```
    Queue an instruction to release an INVITE-initiated dialog during instruction processing. The action taken depends on the current state of the leg (see LegManager.releaseLeg(Leg)). Subscriptions on the same dialog are not affected, the dialog will only end if there are no active subscriptions.
    
    Returns:
    true if an invite session was found and terminated, otherwise false.

Interface Leg

Field Summary

Method Summary

Field Detail

SEND_MESSAGE_FAILED_INSTRUCTION

Method Detail

getLegName

sendMessage

sendCancel

parallelFork

upstreamFork

upstreamFork

downstreamFork

refreshSession

linkLeg

unlinkLeg

getLinkedLeg

isLinked

isDownstreamForked

getDownstreamForkedLegs

isUpstreamForked

getUpstreamForkedLegs

isParallelForked

getParallelForkedLegs

isActive

getSipSession

getAci

getLatestMessageTimestamp

getInviteRequest

setInviteRequest

getLatestInviteRequest

setInitialSubscribe

getInitialSubscribe

getLatestRequest

getLatestIncomingRequest

setLatestRequest

getLatestResponse

getMessagesToSend

getOutstandingTransactionsByMethod

getLatestReceivedSDP

setLatestReceivedSDP

getLatestSentSDP

setLatestSentSDP

getCommittedSDP

setCommittedSDP

getLatestSentSDPSequenceNumber

setLatestSentSDPSequenceNumber

getPreviousSentSDPSequenceNumber

setPreviousSentSDPSequenceNumber

getLatestReceivedSDPSequenceNumber

setLatestReceivedSDPSequenceNumber

getPreviousReceivedSDPSequenceNumber

setPreviousReceivedSDPSequenceNumber

getPreviousReceivedSDP

setPreviousReceivedSDP

getPreviousSentSDP

setPreviousSentSDP

getCommittedSDPSequenceNumber

setCommittedSDPSequenceNumber

getPreviousCommittedSDP

setPreviousCommittedSDP

getHasOutstandingSDPOffer

setHasOutstandingSDPOffer

isTrackingEnabled

setTrackingEnabled

isWaitForTrackingResultEnabled

setWaitForTrackingResultEnabled

getAdditionalTrackingKeys

addAdditionalTrackingKeys

getAdditionalTrackedAttributes

setAdditionalTrackedAttributes

getOwner

setOwner

getLastTrackingDataChangeTime

getDialogID

proxySessionAndDoNotRecordRoute

proxySessionAndDoNotRecordRoute

proxySessionAndDoNotRecordRoute

proxySessionInternal

isSuspended