/
cluster.go
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/
cluster.go
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/*
* 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 failover
import (
clusterpkg "dubbo.apache.org/dubbo-go/v3/cluster/cluster"
"dubbo.apache.org/dubbo-go/v3/cluster/directory"
"dubbo.apache.org/dubbo-go/v3/common/constant"
"dubbo.apache.org/dubbo-go/v3/common/extension"
"dubbo.apache.org/dubbo-go/v3/protocol"
)
func init() {
extension.SetCluster(constant.ClusterKeyFailover, newFailoverCluster)
}
type failoverCluster struct{}
// newFailoverCluster returns a failoverCluster instance
//
// Failure automatically switch, when there is a failure,
// retry the other server (default). Usually used for read operations,
// but retries can result in longer delays.
func newFailoverCluster() clusterpkg.Cluster {
return &failoverCluster{}
}
// Join returns a baseClusterInvoker instance
func (cluster *failoverCluster) Join(directory directory.Directory) protocol.Invoker {
return clusterpkg.BuildInterceptorChain(newFailoverClusterInvoker(directory))
}