Package com.codahale.metrics.health

Class HealthCheckRegistry

java.lang.Object
com.codahale.metrics.health.HealthCheckRegistry
public class HealthCheckRegistry extends Object
A registry for health checks.

  • Constructor Details

    • HealthCheckRegistry

      public HealthCheckRegistry()
      Creates a new HealthCheckRegistry.

    • HealthCheckRegistry

      public HealthCheckRegistry(int asyncExecutorPoolSize)
      Creates a new HealthCheckRegistry.
      Parameters:
      asyncExecutorPoolSize - core pool size for async health check executions

    • HealthCheckRegistry

      public HealthCheckRegistry(ScheduledExecutorService asyncExecutorService)
      Creates a new HealthCheckRegistry.
      Parameters:
      asyncExecutorService - executor service for async health check executions

  • Method Details

    • addListener

      public void addListener(HealthCheckRegistryListener listener)
      Adds a HealthCheckRegistryListener to a collection of listeners that will be notified on health check registration. Listeners will be notified in the order in which they are added. The listener will be notified of all existing health checks when it first registers.
      Parameters:
      listener - listener to add

    • removeListener

      public void removeListener(HealthCheckRegistryListener listener)
      Removes a HealthCheckRegistryListener from this registry's collection of listeners.
      Parameters:
      listener - listener to remove

    • register

      public void register(String name, HealthCheck healthCheck)
      Registers an application HealthCheck.
      Parameters:
      name - the name of the health check
      healthCheck - the HealthCheck instance

    • unregister

      public void unregister(String name)
      Unregisters the application HealthCheck with the given name.
      Parameters:
      name - the name of the HealthCheck instance

    • getNames

      public SortedSet<String> getNames()
      Returns a set of the names of all registered health checks.
      Returns:
      the names of all registered health checks

    • getHealthCheck

      public HealthCheck getHealthCheck(String name)
      Returns the HealthCheck instance with a given name
      Parameters:
      name - the name of the HealthCheck instance

    • runHealthCheck

      public HealthCheck.Result runHealthCheck(String name) throws NoSuchElementException
      Runs the health check with the given name.
      Parameters:
      name - the health check's name
      Returns:
      the result of the health check
      Throws:
      NoSuchElementException - if there is no health check with the given name

    • runHealthChecks

      public SortedMap<String,HealthCheck.Result> runHealthChecks()
      Runs the registered health checks and returns a map of the results.
      Returns:
      a map of the health check results

    • runHealthChecks

      public SortedMap<String,HealthCheck.Result> runHealthChecks(HealthCheckFilter filter)
      Runs the registered health checks matching the filter and returns a map of the results.
      Parameters:
      filter - health check filter
      Returns:
      a map of the health check results

    • runHealthChecks

      public SortedMap<String,HealthCheck.Result> runHealthChecks(ExecutorService executor)
      Runs the registered health checks in parallel and returns a map of the results.
      Parameters:
      executor - object to launch and track health checks progress
      Returns:
      a map of the health check results

    • runHealthChecks

      public SortedMap<String,HealthCheck.Result> runHealthChecks(ExecutorService executor, HealthCheckFilter filter)
      Runs the registered health checks matching the filter in parallel and returns a map of the results.
      Parameters:
      executor - object to launch and track health checks progress
      filter - health check filter
      Returns:
      a map of the health check results

    • shutdown

      public void shutdown()
      Shuts down the scheduled executor for async health checks