[incubator-eventmesh] branch master updated: go sdk add loadbalance, add random selector

[mi...@apache.org]

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mikexue pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-eventmesh.git


The following commit(s) were added to refs/heads/master by this push:
     new 175aa11e go sdk add loadbalance, add random selector
     new 405f4548 Merge pull request #1749 from horoc/add-go-sdk-loadbalance-random
175aa11e is described below

commit 175aa11e0e206f029ab2977902822a63a55f14c7
Author: horoc <ho...@gmail.com>
AuthorDate: Sat Oct 22 17:16:22 2022 +0800

    go sdk add loadbalance, add random selector
---
 eventmesh-sdk-go/http/selector/random_selector.go | 49 +++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/eventmesh-sdk-go/http/selector/random_selector.go b/eventmesh-sdk-go/http/selector/random_selector.go
new file mode 100644
index 00000000..72969161
--- /dev/null
+++ b/eventmesh-sdk-go/http/selector/random_selector.go
@@ -0,0 +1,49 @@
+// 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 selector
+
+import (
+	"github.com/apache/incubator-eventmesh/eventmesh-sdk-go/http/conf"
+	"math/rand"
+	"time"
+)
+
+const RandomSelectorType = "random"
+
+func init() {
+	rand.Seed(time.Now().UnixNano())
+	registerSelectorBuilder(RandomSelectorType, buildRandomLoadSelector)
+}
+
+func buildRandomLoadSelector(config *conf.EventMeshHttpClientConfig) (LoadBalanceSelector, error) {
+	meshNodes, err := parseMeshNodeFromConfig(config)
+	if err != nil {
+		return nil, err
+	}
+	return &RandomLoadSelector{clusterGroup: meshNodes}, nil
+}
+
+type RandomLoadSelector struct {
+	clusterGroup []MeshNode
+}
+
+func (s *RandomLoadSelector) Select() MeshNode {
+	return s.clusterGroup[rand.Intn(len(s.clusterGroup))]
+}
+
+func (s *RandomLoadSelector) GetType() string {
+	return RandomSelectorType
+}


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