github.com/hxx258456/ccgo@v0.0.5-0.20230213014102-48b35f46f66f/grpc/xds/internal/xdsclient/pubsub/interface.go (about)

     1  /*
     2   *
     3   * Copyright 2021 gRPC authors.
     4   *
     5   * Licensed under the Apache License, Version 2.0 (the "License");
     6   * you may not use this file except in compliance with the License.
     7   * You may obtain a copy of the License at
     8   *
     9   *     http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  
    18  package pubsub
    19  
    20  import "github.com/hxx258456/ccgo/grpc/xds/internal/xdsclient/xdsresource"
    21  
    22  // UpdateHandler receives and processes (by taking appropriate actions) xDS
    23  // resource updates from an APIClient for a specific version.
    24  //
    25  // It's a subset of the APIs of a *Pubsub.
    26  type UpdateHandler interface {
    27  	// NewListeners handles updates to xDS listener resources.
    28  	NewListeners(map[string]xdsresource.ListenerUpdateErrTuple, xdsresource.UpdateMetadata)
    29  	// NewRouteConfigs handles updates to xDS RouteConfiguration resources.
    30  	NewRouteConfigs(map[string]xdsresource.RouteConfigUpdateErrTuple, xdsresource.UpdateMetadata)
    31  	// NewClusters handles updates to xDS Cluster resources.
    32  	NewClusters(map[string]xdsresource.ClusterUpdateErrTuple, xdsresource.UpdateMetadata)
    33  	// NewEndpoints handles updates to xDS ClusterLoadAssignment (or tersely
    34  	// referred to as Endpoints) resources.
    35  	NewEndpoints(map[string]xdsresource.EndpointsUpdateErrTuple, xdsresource.UpdateMetadata)
    36  	// NewConnectionError handles connection errors from the xDS stream. The
    37  	// error will be reported to all the resource watchers.
    38  	NewConnectionError(err error)
    39  }