Package org.apache.dubbo.rpc.protocol

Class ProtocolSerializationWrapper

java.lang.Object
org.apache.dubbo.rpc.protocol.ProtocolSerializationWrapper
All Implemented Interfaces:
Protocol
@Activate public class ProtocolSerializationWrapper extends Object implements Protocol

  • Constructor Details

    • ProtocolSerializationWrapper

      public ProtocolSerializationWrapper(Protocol protocol)

  • Method Details

    • getDefaultPort

      public int getDefaultPort()
      Description copied from interface: Protocol
      Get default port when user doesn't config the port.
      Specified by:
      getDefaultPort in interface Protocol
      Returns:
      default port

    • export

      public <T> Exporter<T> export(Invoker<T> invoker) throws RpcException
      Description copied from interface: Protocol
      Export service for remote invocation:
      1. Protocol should record request source address after receive a request: RpcContext.getServerAttachment().setRemoteAddress();
      2. export() must be idempotent, that is, there's no difference between invoking once and invoking twice when export the same URL
      3. Invoker instance is passed in by the framework, protocol needs not to care
      Specified by:
      export in interface Protocol
      Type Parameters:
      T - Service type
      Parameters:
      invoker - Service invoker
      Returns:
      exporter reference for exported service, useful for unexport the service later
      Throws:
      RpcException - thrown when error occurs during export the service, for example: port is occupied

    • refer

      public <T> Invoker<T> refer(Class<T> type, URL url) throws RpcException
      Description copied from interface: Protocol
      Refer a remote service:
      1. When user calls `invoke()` method of `Invoker` object which's returned from `refer()` call, the protocol needs to correspondingly execute `invoke()` method of `Invoker` object
      2. It's protocol's responsibility to implement `Invoker` which's returned from `refer()`. Generally speaking, protocol sends remote request in the `Invoker` implementation.
      3. When there's check=false set in URL, the implementation must not throw exception but try to recover when connection fails.
      Specified by:
      refer in interface Protocol
      Type Parameters:
      T - Service type
      Parameters:
      type - Service class
      url - URL address for the remote service
      Returns:
      invoker service's local proxy
      Throws:
      RpcException - when there's any error while connecting to the service provider

    • destroy

      public void destroy()
      Description copied from interface: Protocol
      Destroy protocol:
      1. Cancel all services this protocol exports and refers
      2. Release all occupied resources, for example: connection, port, etc.
      3. Protocol can continue to export and refer new service even after it's destroyed.
      Specified by:
      destroy in interface Protocol

    • getServers

      public List<ProtocolServer> getServers()
      Description copied from interface: Protocol
      Get all servers serving this protocol
      Specified by:
      getServers in interface Protocol
      Returns: