blob: f4d77a5616f419264ace24d6fc416a43b9a15640 [file] [log] [blame]
// Licensed to the Apache Software Foundation (ASF) under one or more
// contributor license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You under the Apache License, Version 2.0
// (the "License"); you may not use this file except in compliance with
// the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package grpc
import (
"context"
"fmt"
"github.com/apache/incubator-eventmesh/eventmesh-sdk-go/log"
"github.com/apache/incubator-eventmesh/eventmesh-sdk-go/grpc/proto"
"google.golang.org/grpc"
)
var (
ErrNoMeshServer = fmt.Errorf("no event mesh server provided")
ErrLoadBalancer = fmt.Errorf("can not peek status server from loadbalancer")
// LoadBalancerInput key set in the context, used to store the parameter
// into context, such as clientIP in IPHash
LoadBalancerInput = "LoadBalancerInput"
)
// eventMeshProducer producer for eventmesh
type eventMeshProducer struct {
// client grpc producer client
client proto.PublisherServiceClient
}
// newProducer create new producer instance to send events
func newProducer(grpcConn *grpc.ClientConn) (*eventMeshProducer, error) {
return &eventMeshProducer{
client: proto.NewPublisherServiceClient(grpcConn),
}, nil
}
// Close recover all resource hold in the producer
func (e *eventMeshProducer) Close() error {
log.Infof("close eventmesh producer")
return nil
}
// Publish Async event publish
func (e *eventMeshProducer) Publish(ctx context.Context, msg *proto.SimpleMessage, opts ...grpc.CallOption) (*proto.Response, error) {
log.Infof("publish event:%v", msg.String())
resp, err := e.client.Publish(ctx, msg, opts...)
if err != nil {
log.Warnf("failed to publish msg, err:%v", err)
return nil, err
}
log.Infof("success publish msg:%s", msg.String())
return resp, nil
}
// RequestReply Sync event publish
func (e *eventMeshProducer) RequestReply(ctx context.Context, msg *proto.SimpleMessage, opts ...grpc.CallOption) (*proto.SimpleMessage, error) {
log.Infof("request reply event:%v", msg.String())
resp, err := e.client.RequestReply(ctx, msg, opts...)
if err != nil {
log.Warnf("failed to request reply msg, err:%v", err)
return nil, err
}
log.Infof("success request reply event")
return resp, nil
}
// BatchPublish Async batch event publish
func (e *eventMeshProducer) BatchPublish(ctx context.Context, msg *proto.BatchMessage, opts ...grpc.CallOption) (*proto.Response, error) {
log.Infof("request batch publish event:%v", msg.String())
resp, err := e.client.BatchPublish(ctx, msg, opts...)
if err != nil {
log.Warnf("failed to batch publish msg, err:%v", err)
return nil, err
}
log.Infof("success batch publish event")
return resp, nil
}