ConnectorState Class
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The ConnectorState
class is a part of the org.sunbird.obsrv.connector.model
package. It encapsulates the state information for a connector instance, allowing for the tracking and management of various state attributes associated with the connector's lifecycle.
Ref:
connectorInstanceId: String
Description: The unique identifier for the specific instance of the connector.
stateJson: Option[String]
Description: The JSON representation of the state for the connector instance.
state: mutable.Map[String, AnyRef]
Description: A mutable map that holds the state attributes for the connector instance.
getState[T](attribute: String): Option[T]
Description: Retrieves the value of the specified state attribute.
Parameters: attribute
- The name of the state attribute to retrieve.
Returns: An Option
containing the value of the state attribute, if it exists.
getState[T](attribute: String, defaultValue: T): T
Description: Retrieves the value of the specified state attribute, or returns a default value if the attribute does not exist.
Parameters:
attribute
- The name of the state attribute to retrieve.
defaultValue
- The default value to return if the attribute does not exist.
Returns: The value of the state attribute, or the default value.
putState[T <: AnyRef](attrib: String, value: T): Unit
Description: Adds or updates the value of the specified state attribute.
Parameters:
attrib
- The name of the state attribute to add or update.
value
- The value to set for the state attribute.
removeState(attrib: String): Option[AnyRef]
Description: Removes the specified state attribute from the state.
Parameters: attrib
- The name of the state attribute to remove.
Returns: An Option
containing the removed value, if it existed.
contains(attrib: String): Boolean
Description: Checks if the specified state attribute exists in the state.
Parameters: attrib
- The name of the state attribute to check.
Returns: true
if the attribute exists, false
otherwise.
toJson(): String
Description: Serializes the state to a JSON string.
Returns: A JSON string representation of the state.
saveState(): Unit
Description: Saves the current state to the database.
Throws: ObsrvException
if the state could not be saved.
The ConnectorState
class is used to manage and track the state attributes of a connector instance. It provides methods to access, update, and persist these attributes.