Lock & Unlock
This handler (com.rierino.handler.LockEventHandler) provides ability to create locks & unlock them for a given id and a domain.
Handler Parameters
locker
StateLocker class to use for issuing and releasing locks
com.rierino.state.lock.RedisStateLocker
-
timeout
Default milliseconds to wait for acquiring a lock
1000
-
expiry
Default TTL of a lock in milliseconds (-1 for non-expiring locks)
60000
-1
Actions
TryLock
Tries creating a lock and returns whether it was successful:
inputElement
Json path in payload that has id parameter
parameters
-
outputElement
Json path in payload to return "locked" results
result
-
With the following event metadata parameters:
master
Whether master lock should be used instead of a specific id
true
false
timeout
Milliseconds to wait for acquiring a lock (overrides default)
2000
-
expiry
TTL in milliseconds for lock expiry (overrides default)
10000
-
allowNoLock
Whether failure to hold a lock should return a successful result (returns "locked" value instead of error)
true
false
Unlock
Unlocks an existing lock:
inputElement
Json path in payload that has id parameter
parameters
-
With the following event metadata parameters:
master
Whether master lock should be used instead of a specific id
true
false
CheckLock
Returns the current status for a lock:
inputElement
Json path in payload that has id parameter
parameters
-
outputElement
Json path in payload to return "locked" results
result
-
With the following event metadata parameters:
master
Whether master lock should be used instead of a specific id
true
false
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