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xds/outlierdetection: fix config handling (#6361)
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/* | ||
* | ||
* Copyright 2023 gRPC authors. | ||
* | ||
* Licensed 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. | ||
* | ||
*/ | ||
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// Package nop implements a balancer with all of its balancer operations as | ||
// no-ops, other than returning a Transient Failure Picker on a Client Conn | ||
// update. | ||
package nop | ||
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import ( | ||
"google.golang.org/grpc/balancer" | ||
"google.golang.org/grpc/balancer/base" | ||
"google.golang.org/grpc/connectivity" | ||
) | ||
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// bal is a balancer with all of its balancer operations as no-ops, other than | ||
// returning a Transient Failure Picker on a Client Conn update. | ||
type bal struct { | ||
cc balancer.ClientConn | ||
err error | ||
} | ||
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// NewBalancer returns a no-op balancer. | ||
func NewBalancer(cc balancer.ClientConn, err error) balancer.Balancer { | ||
return &bal{ | ||
cc: cc, | ||
err: err, | ||
} | ||
} | ||
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// UpdateClientConnState updates the bal's Client Conn with an Error Picker | ||
// and a Connectivity State of TRANSIENT_FAILURE. | ||
func (b *bal) UpdateClientConnState(_ balancer.ClientConnState) error { | ||
b.cc.UpdateState(balancer.State{ | ||
Picker: base.NewErrPicker(b.err), | ||
ConnectivityState: connectivity.TransientFailure, | ||
}) | ||
return nil | ||
} | ||
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// ResolverError is a no-op. | ||
func (b *bal) ResolverError(_ error) {} | ||
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// UpdateSubConnState is a no-op. | ||
func (b *bal) UpdateSubConnState(_ balancer.SubConn, _ balancer.SubConnState) {} | ||
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// Close is a no-op. | ||
func (b *bal) Close() {} |
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