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path: root/java/com/android/voicemail/impl/transcribe/GetTranscriptReceiver.java
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2018-01-14Make sure that voicemail transcriptions are processed seriallymdooley
Since we are now using the AlarmManager to decide when to poll for voicemail transcriptions, we need to ensure that we don't start transcribing a voicemail until polling for the previous one ends. This cl postpones a voicemail transcription task if there is an alarm set to poll for a transcription result. After a transcription result is received (or we give up) the db is scanned for any pending transcriptions and the next one is started. Bug: 70242961 Test: manual and updated unit tests PiperOrigin-RevId: 181899975 Change-Id: I7b8fb696164980cf710aa58a79418c6954e2b4d2
2017-11-29Switching to alarms and exponential backoff while polling for transcription ↵mdooley
result This cl switches the way asynchronous transcription tasks poll for their results. it has been observed that sometimes the server side transcription takes longer than expected (sometimes many minutes), so instead of blocking a thread for all that time this cl schedules an alarm for the next time to poll. it also uses an exponential backoff scheme to determine the poll times and increases the maximum total polling time from 20 seconds to 20 minutes. Bug: 66966157 Test: manual and unit tests PiperOrigin-RevId: 177257577 Change-Id: Ib2998f03cc418d5241ccffec71ba3945c9fe4cbc