Performance counters that periodically dump counters to AWS Cloud Watch Metrics.
Implements: IConfigurable, IReferenceable
Extends: CachedCounters
Description
The CloudWatchCounters class allows you to create performance counters that periodically dump counters to AWS Cloud Watch Metrics.
Configuration parameters
- connections:
- discovery_key: (optional) key to retrieve the connection from IDiscovery
- region: (optional) AWS region
- credentials:
- store_key: (optional) key to retrieve the credentials from ICredentialStore
- access_id: AWS access/client id
- access_key: AWS access/client key
- options:
- interval: interval in milliseconds to save current counters measurements (default: 5 mins)
- reset_timeout: timeout in milliseconds to reset the counters. 0 disables the reset (default: 0)
References
- *:context-info:*:*:1.0 - (optional) ContextInfo to detect the context id and specify the counters' source
- *:discovery:*:*:1.0 - (optional) IDiscovery services to resolve connections
- *:credential-store:*:*:1.0 - (optional) credential stores to resolve credentials requests
Constructors
Creates a new instance of this counters.
public
constructor()
Instance methods
close
Closes component and frees used resources.
public
void close(IContext context)
- context: IContext - (optional) a context to trace execution through a call chain.
configure
Configures a component by passing its configuration parameters.
public
void configure(ConfigParams config)
- config: ConfigParams - configuration parameters to be set.
isOpen
Checks if the component is open.
public
boolean isOpen()
- returns: boolean - true if the component is open and false otherwise.
open
Opens the component.
public
void open(IContext context)
- context: IContext - (optional) a context to trace execution through a call chain.
save
Saves the current counters' measurements.
protected
void save(List<Counter[]> counters)
- counters: Counter[] - current counters' measurements to be saved.
setReferences
Sets references to dependent components.
public
void setReferences(IReferences references)
- references: IReferences - references to locate the component’s dependencies.