[Asterisk-java-users] NewChannelEvent and GetVarAction
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[Asterisk-java-users] NewChannelEvent and GetVarAction
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From: Robert S. <rls...@op...> - 2007-03-15 10:31:38
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I'm using=20
asteriskjava 3 m1
asterisk 1.2.5
java 1.5.0_06-b05
My code dials out, and allows the user to cancel the call before it is =
answered. To do this I've added a channel variable to the originate so =
that I can identify the correct NewChannelEvent and and use the channel =
name to hangup up before it's answered.
The problem is this: When I receive the NewChannelEvent and request my =
channel variable, sometimes I get an error back "No such channel".
Am I doing something wrong?=20
I do know that if I add a 500ms delay as in the event handler below the =
problem goes away.
I could also repeat the request for the variable several times.
It occurs to me that it could be asterisk-java doing something funny or =
asterisk.
I ran ngrep on the manager port and it seems to me that asterisk-java =
isn't doing anything wrong.
The ngrep trace is below as well, one with out the delay and one with =
the delay.
Does anyone have a better solution to this problem.
Thanks in advance for your help.
Robert
........ a cut down snippet that makes the call
OriginateAction originate =3D new OriginateAction();
HashMap<String, String> myVars =3D new HashMap<String, String>(1);
ManagerResponse response =3D null;
myVars.put(TRC_CALL_ID, actionID);
originate.setVariables(myVars);
originate.setChannel(pChannel);
originate.setContext(config.getSetting(Config.CONTEXT));
originate.setExten(config.getMeetMeExtension());
originate.setAsync(true);
originate.setPriority(1);
try {
response =3D managerFactory.sendAction(originate, 30000);
wait();
} catch (Exception e) {
logger.error(e, e);
}
........ this is my event handler
if (event instanceof NewChannelEvent) {
NewChannelEvent newState =3D (NewChannelEvent) event;
String channel =3D newState.getChannel();
GetVarAction var =3D new GetVarAction();
var.setChannel(channel);
var.setVariable(TRC_CALL_ID);
try {
/*
* wait 500ms to allow asterisk time to make the channel variables
* available. If you request the channel variables too soon asterisk
* responds with channel not found.
*/
wait(500);
ManagerResponse response =3D managerFactory.sendAction(var, 500);
String callID =3D response.getAttribute("value");
if (callID !=3D null && callID.compareToIgnoreCase(actionID) =3D=3D =
0) {
newChannelName =3D channel;
logger.info("new channel name " + channel);
}
} catch (Exception e) {
// TODO Auto-generated catch block
logger.error(e, e);
}
}
NGREP OUTPUT: what follows is a failure to retreive the channel variable
*************************************************************************=
***********************
T +0.064170 192.168.0.103:2081 -> 192.168.0.110:5038 [AP]
action: Originate..actionid: 32260544_11#3..timeout: 30000..exten: =
303..async: true..variable:
room=3D3750..variable: trcCallID=3D3..variable: =
options=3DqdxA..context: trc..priority: 1..channel: I
AX2/09508696@faktortel/94044931....
#
T +0.003224 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
Response: Success..
#
T +0.001894 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
ActionID: 32260544_11#3..
##
T +0.001223 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
Message: Originate successfully queued....
#
T +0.005362 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
Event: Newexten..Privilege: call,all..Channel: SIP/210-b027..Context: =
trc..Extension: 304..Prio
rity: 2..Application: Ringing..AppData: ..Uniqueid: 1173952443.0....
##
T +0.070978 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
Event: Newexten..Privilege: call,all..Channel: SIP/210-b027..Context: =
trc..Extension: 304..Prio
rity: 3..Application: Wait..AppData: 30..Uniqueid: 1173952443.0....
#
T +0.079071 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
Event: Newchannel..Privilege: call,all..Channel: =
IAX2/faktortel-5..State: Down..CallerID: <unkn
own>..CallerIDName: <unknown>..Uniqueid: 1173952450.1....
##
T +0.003277 192.168.0.103:2081 -> 192.168.0.110:5038 [AP]
action: GetVar..actionid: 32260544_12#..variable: trcCallID..channel: =
IAX2/faktortel-5....
#
T +0.001136 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
Response: Success..Variable: trcCallID..Value: ..
#
T +0.000131 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
ActionID: 32260544_12#..
#
T +0.000119 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
..
##
T +0.058156 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
Event: Newcallerid..Privilege: call,all..Channel: =
IAX2/faktortel-5..CallerID: <Unknown>..Caller
IDName: <Unknown>..Uniqueid: 1173952450.1..CID-CallingPres: 0 =
(Presentation Allowed, Not Screen
ed)....
##
T +0.078445 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
Event: Newchannel..Privilege: call,all..Channel: =
IAX2/faktortel-5..State: Ringing..CallerID: <u
nknown>..CallerIDName: <unknown>..Uniqueid: 1173952450.1....
#
T +0.011187 192.168.0.103:2081 -> 192.168.0.110:5038 [AP]
action: GetVar..actionid: 32260544_13#..variable: trcCallID..channel: =
IAX2/faktortel-5....
#
T +0.021240 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
Response: Error..
#
T +0.000141 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
ActionID: 32260544_13#..
#
T +0.000109 192.168.0.110:5038 -> 192.168.0.103:2081 [AP]
Message: No such channel....
###
*************************************************************************=
*************************
NGREP OUTPUT: what follows is a failure to retreive the channel variable
*************************************************************************=
***********************
T +0.065913 192.168.0.103:2171 -> 192.168.0.110:5038 [AP]
action: Originate..actionid: 14220570_11#3..timeout: 30000..exten: =
303..async: true..variable:
room=3D3750..variable: trcCallID=3D3..variable: =
options=3DqdxA..context: trc..priority: 1..channel: I
AX2/09508696@faktortel/94044931....
#
T +0.004425 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
Response: Success..
#
T +0.001197 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
ActionID: 14220570_11#3..
##
T +0.001863 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
Message: Originate successfully queued....
##
T +0.269368 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
Event: Newexten..Privilege: call,all..Channel: SIP/210-7e81..Context: =
trc..Extension: 304..Prio
rity: 2..Application: Ringing..AppData: ..Uniqueid: 1173952739.2....
#
T +0.002325 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
Event: Newexten..Privilege: call,all..Channel: SIP/210-7e81..Context: =
trc..Extension: 304..Prio
rity: 3..Application: Wait..AppData: 30..Uniqueid: 1173952739.2....
##
T +0.002692 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
Event: Newchannel..Privilege: call,all..Channel: =
IAX2/faktortel-5..State: Down..CallerID: <unkn
own>..CallerIDName: <unknown>..Uniqueid: 1173952743.3....
#
T +0.002628 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
Event: Newcallerid..Privilege: call,all..Channel: =
IAX2/faktortel-5..CallerID: <Unknown>..Caller
IDName: <Unknown>..Uniqueid: 1173952743.3..CID-CallingPres: 0 =
(Presentation Allowed, Not Screen
ed)....
##
T +0.005310 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
Event: Newchannel..Privilege: call,all..Channel: =
IAX2/faktortel-5..State: Ringing..CallerID: <u
nknown>..CallerIDName: <unknown>..Uniqueid: 1173952743.3....
##
T +0.493871 192.168.0.103:2171 -> 192.168.0.110:5038 [AP]
action: GetVar..actionid: 14220570_12#..variable: trcCallID..channel: =
IAX2/faktortel-5....
#
T +0.001254 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
Response: Success..Variable: trcCallID..Value: 3..
#
T +0.000122 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
ActionID: 14220570_12#..
#
T +0.000170 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
..
###
T +0.501307 192.168.0.103:2171 -> 192.168.0.110:5038 [AP]
action: GetVar..actionid: 14220570_13#..variable: trcCallID..channel: =
IAX2/faktortel-5....
#
T +0.001883 192.168.0.110:5038 -> 192.168.0.103:2171 [AP]
Response: Success..Variable: trcCallID..Value: 3..
#
*************************************************************************=
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