Package org.redisson.api

Interface RRemoteService

All Known Implementing Classes:
RedissonExecutorRemoteService, RedissonRemoteService
public interface RRemoteService
Allows to execute object methods remotely between Redisson instances (Server side and Client side instances in terms of remote invocation).

1. Server side instance (worker instance). Register object with RRemoteService instance.

RRemoteService remoteService = redisson.getRemoteService();

// register remote service before any remote invocation
remoteService.register(SomeServiceInterface.class, someServiceImpl);

2. Client side instance. Invokes method remotely.

RRemoteService remoteService = redisson.getRemoteService();
SomeServiceInterface service = remoteService.get(SomeServiceInterface.class);

String result = service.doSomeStuff(1L, "secondParam", new AnyParam());

There are two timeouts during execution:

Acknowledge (Ack) timeout.Client side instance waits for acknowledge message from Server side instance.

If acknowledge has not been received by Client side instance then RemoteServiceAckTimeoutException will be thrown. And next invocation attempt can be made.

If acknowledge has not been received Client side instance but Server side instance has received invocation message already. In this case invocation will be skipped, due to ack timeout checking by Server side instance.

Execution timeout. Client side instance received acknowledge message. If it hasn't received any result or error from server side during execution timeout then RemoteServiceTimeoutException will be thrown.

Author:
Nikita Koksharov

  • Method Summary

    Modifier and Type
    Method
    Description
    <T> void
    deregister(Class<T> remoteInterface)
    Deregister all workers for remote service
    <T> T
    get(Class<T> remoteInterface)
    Get remote service object for remote invocations.
    <T> T
    get(Class<T> remoteInterface, long executionTimeout, TimeUnit executionTimeUnit)
    Get remote service object for remote invocations with specified invocation timeout.
    <T> T
    get(Class<T> remoteInterface, long executionTimeout, TimeUnit executionTimeUnit, long ackTimeout, TimeUnit ackTimeUnit)
    Get remote service object for remote invocations with specified invocation and ack timeouts
    <T> T
    get(Class<T> remoteInterface, RemoteInvocationOptions options)
    Get remote service object for remote invocations with the specified options
    int
    getFreeWorkers(Class<?> remoteInterface)
    Returns free workers amount available for invocations
    int
    getPendingInvocations(Class<?> remoteInterface)
    Returns pending invocations amount for handling in free workers.
    RFuture<Integer>
    getPendingInvocationsAsync(Class<?> remoteInterface)
    Returns pending invocations amount for handling in free workers.
    <T> void
    register(Class<T> remoteInterface, T object)
    Register remote service with single worker
    <T> void
    register(Class<T> remoteInterface, T object, int workersAmount)
    Register remote service with custom workers amount
    <T> void
    register(Class<T> remoteInterface, T object, int workers, ExecutorService executor)
    Register remote service with custom workers amount and executor for running them
    <T> boolean
    tryExecute(Class<T> remoteInterface, T object, long timeout, TimeUnit timeUnit)
    Tries to execute one awaiting remote request.
    <T> boolean
    tryExecute(Class<T> remoteInterface, T object, ExecutorService executorService, long timeout, TimeUnit timeUnit)
    Tries to execute one awaiting remote request.
    <T> RFuture<Boolean>
    tryExecuteAsync(Class<T> remoteInterface, T object)
    Tries to execute one awaiting remote request.
    <T> RFuture<Boolean>
    tryExecuteAsync(Class<T> remoteInterface, T object, long timeout, TimeUnit timeUnit)
    Tries to execute one awaiting remote request.
    <T> RFuture<Boolean>
    tryExecuteAsync(Class<T> remoteInterface, T object, ExecutorService executorService, long timeout, TimeUnit timeUnit)
    Tries to execute one awaiting remote request.

  • Method Details

    • getFreeWorkers

      int getFreeWorkers(Class<?> remoteInterface)
      Returns free workers amount available for invocations
      Parameters:
      remoteInterface - - remote service interface
      Returns:
      workers amount

    • getPendingInvocations

      int getPendingInvocations(Class<?> remoteInterface)
      Returns pending invocations amount for handling in free workers.
      Parameters:
      remoteInterface - - remote service interface
      Returns:
      invocations amount

    • getPendingInvocationsAsync

      RFuture<Integer> getPendingInvocationsAsync(Class<?> remoteInterface)
      Returns pending invocations amount for handling in free workers.
      Parameters:
      remoteInterface - - remote service interface
      Returns:
      invocations amount

    • register

      <T> void register(Class<T> remoteInterface, T object)
      Register remote service with single worker
      Type Parameters:
      T - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      object - - remote service object

    • register

      <T> void register(Class<T> remoteInterface, T object, int workersAmount)
      Register remote service with custom workers amount
      Type Parameters:
      T - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      object - - remote service object
      workersAmount - - workers amount

    • register

      <T> void register(Class<T> remoteInterface, T object, int workers, ExecutorService executor)
      Register remote service with custom workers amount and executor for running them
      Type Parameters:
      T - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      object - - remote service object
      workers - - workers amount
      executor - - executor service used to invoke methods

    • deregister

      <T> void deregister(Class<T> remoteInterface)
      Deregister all workers for remote service
      Type Parameters:
      T - type of remote service
      Parameters:
      remoteInterface - - remote service interface

    • tryExecute

      <T> boolean tryExecute(Class<T> remoteInterface, T object, long timeout, TimeUnit timeUnit) throws InterruptedException
      Tries to execute one awaiting remote request. Waits up to timeout if necessary until remote request became available.
      Type Parameters:
      T - - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      object - - remote service object
      timeout - - maximum wait time until remote request became available
      timeUnit - - time unit
      Returns:
      true if method was successfully executed and false if timeout reached before execution
      Throws:
      InterruptedException - - if the thread is interrupted

    • tryExecute

      <T> boolean tryExecute(Class<T> remoteInterface, T object, ExecutorService executorService, long timeout, TimeUnit timeUnit) throws InterruptedException
      Tries to execute one awaiting remote request. Waits up to timeout if necessary until remote request became available.
      Type Parameters:
      T - - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      object - - remote service object
      timeout - - maximum wait time until remote request became available
      timeUnit - - time unit
      executorService - - executor service used to invoke methods
      Returns:
      true if method was successfully executed and false if timeout reached before execution
      Throws:
      InterruptedException - - if the thread is interrupted

    • tryExecuteAsync

      <T> RFuture<Boolean> tryExecuteAsync(Class<T> remoteInterface, T object)
      Tries to execute one awaiting remote request.
      Type Parameters:
      T - - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      object - - remote service object
      Returns:
      true if method was successfully executed and false if timeout reached before execution

    • tryExecuteAsync

      <T> RFuture<Boolean> tryExecuteAsync(Class<T> remoteInterface, T object, long timeout, TimeUnit timeUnit)
      Tries to execute one awaiting remote request. Waits up to timeout if necessary until remote request became available.
      Type Parameters:
      T - - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      object - - remote service object
      timeout - - maximum wait time until remote request became available
      timeUnit - - time unit
      Returns:
      true if method was successfully executed and false if timeout reached before execution

    • tryExecuteAsync

      <T> RFuture<Boolean> tryExecuteAsync(Class<T> remoteInterface, T object, ExecutorService executorService, long timeout, TimeUnit timeUnit)
      Tries to execute one awaiting remote request. Waits up to timeout if necessary until remote request became available.
      Type Parameters:
      T - - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      object - - remote service object
      timeout - - maximum wait time until remote request became available
      timeUnit - - time unit
      executorService - - executor service used to invoke methods
      Returns:
      true if method was successfully executed and false if timeout reached before execution

    • get

      <T> T get(Class<T> remoteInterface)
      Get remote service object for remote invocations.

      This method is a shortcut for 

           get(remoteInterface, RemoteInvocationOptions.defaults())
      Type Parameters:
      T - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      Returns:
      remote service instance
      See Also:

    • get

      <T> T get(Class<T> remoteInterface, long executionTimeout, TimeUnit executionTimeUnit)
      Get remote service object for remote invocations with specified invocation timeout.

      This method is a shortcut for 

           get(remoteInterface, RemoteInvocationOptions.defaults()
      .expectResultWithin(executionTimeout, executionTimeUnit))
      Type Parameters:
      T - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      executionTimeout - - invocation timeout
      executionTimeUnit - - time unit
      Returns:
      remote service instance
      See Also:

    • get

      <T> T get(Class<T> remoteInterface, long executionTimeout, TimeUnit executionTimeUnit, long ackTimeout, TimeUnit ackTimeUnit)
      Get remote service object for remote invocations with specified invocation and ack timeouts

      This method is a shortcut for 

           get(remoteInterface, RemoteInvocationOptions.defaults()
      .expectAckWithin(ackTimeout, ackTimeUnit)
      .expectResultWithin(executionTimeout, executionTimeUnit))
      Type Parameters:
      T - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      executionTimeout - - invocation timeout
      executionTimeUnit - - time unit
      ackTimeout - - ack timeout
      ackTimeUnit - - time unit
      Returns:
      remote service object
      See Also:

    • get

      <T> T get(Class<T> remoteInterface, RemoteInvocationOptions options)
      Get remote service object for remote invocations with the specified options

      Note that when using the noResult() option, it is expected that the invoked method returns void, or else IllegalArgumentException will be thrown.

      Type Parameters:
      T - type of remote service
      Parameters:
      remoteInterface - - remote service interface
      options - - service options
      Returns:
      remote service object
      See Also: