func (node MenuNode) Execute(ivrChannel *IVRChannel) (string, error) {
if ivrChannel.ChannelState == IVRChannel_State_Hangup {
return "", errors.New("channel state is invalid : hangup")
}
ivrChannel.ActiveNode = node.NodeName
// Clear dtmf channel value.
for len(ivrChannel.Dtmf) > 0 {
<-ivrChannel.Dtmf
}
executePrompt(node.Prompts.Prompt, ivrChannel)
/*
if len(node.Prompts.Prompt) > 0 {
for _, promptName := range node.Prompts.Prompt {
// Find prompt from ivrPromptMap by promptName
if prompt, ok := ivrPromptMap[promptName]; ok {
executePrompt(prompt, ivrChannel)
<-ivrChannel.PlaybackDone
} else {
l4g.Warn("Prompt not find for promptName=%s", promptName)
}
}
}
*/
ivrChannel.Esocket.StartDTMF()
defer ivrChannel.Esocket.StopDTMF()
// Wait dtmf input.
timeout := eventsocket.CheckTimeout(node.Timeout)
select {
case <-timeout:
l4g.Warn("Timeout,no dtmf.")
ivrChannel.NoInputTimes = ivrChannel.NoInputTimes + 1
return node.NoInput, nil
case dtmf := <-ivrChannel.Dtmf:
for _, choice := range node.Choices.Choice {
if dtmf == choice.DTMF {
return choice.NextNode, nil
}
}
l4g.Warn("No match for dtmf=%s", dtmf)
ivrChannel.NoMatchTimes = ivrChannel.NoMatchTimes + 1
return node.NoMatch, nil
case <-ivrChannel.ChannelHangup:
l4g.Trace("Channel hangup.")
return "", errors.New("Channel hangup.")
}
}
func (node PromptCollectNode) Execute(ivrChannel *IVRChannel) (string, error) {
if ivrChannel.ChannelState == IVRChannel_State_Hangup {
return "", errors.New("channel state is invalid : hangup")
}
ivrChannel.ActiveNode = node.NodeName
// Clear dtmf channel value.
for len(ivrChannel.Dtmf) > 0 {
<-ivrChannel.Dtmf
}
executePrompt(node.Prompts.Prompt, ivrChannel)
/*
if len(node.Prompts.Prompt) > 0 {
for _, promptName := range node.Prompts.Prompt {
// Find prompt from ivrPromptMap by promptName
if prompt, ok := ivrPromptMap[promptName]; ok {
executePrompt(prompt, ivrChannel)
<-ivrChannel.PlaybackDone
} else {
l4g.Warn("Prompt not find for promptName=%s", promptName)
}
}
}
*/
ivrChannel.Esocket.StartDTMF()
defer ivrChannel.Esocket.StopDTMF()
// Wait for dtmf input.
if grammar, ok := ivrGrammarMap[node.Grammars.Grammar[0]]; ok {
dtmfValue := ""
maxDtmfLen := grammar.MaxLen
done := false
for !done {
timeout := eventsocket.CheckTimeout(grammar.Timeout)
select {
case <-timeout:
l4g.Warn("Timeout,no dtmf.")
done = true
case dtmf := <-ivrChannel.Dtmf:
if dtmf == grammar.Terminator {
done = true
} else {
dtmfValue = dtmfValue + dtmf
if len(dtmfValue) >= maxDtmfLen {
done = true
}
}
case <-ivrChannel.ChannelHangup:
l4g.Trace("Channel hangup.")
return "", errors.New("Channel hangup.")
}
}
l4g.Debug("Now dtmf vlaue=%s", dtmfValue)
if len(dtmfValue) == 0 {
// Timeout Noinput error.
ivrChannel.NoInputTimes = ivrChannel.NoInputTimes + 1
return node.NoInput, nil
} else {
dtmfRex := regexp.MustCompile(grammar.Express)
if dtmfRex.MatchString(dtmfValue) {
ivrChannel.DtmfValue = dtmfValue
l4g.Trace("Collect dtmfValue=%s,nextNode=%s", ivrChannel.DtmfValue, node.NextNode)
return node.NextNode, nil
} else {
// No match. NoMath error.
ivrChannel.NoMatchTimes = ivrChannel.NoMatchTimes + 1
return node.NoMatch, nil
}
}
} else {
l4g.Warn("Grammar not find for %s at node %s", node.Grammars.Grammar[0], node.NodeName)
return "", errors.New("Grammar not find")
}
}