wehub-resource-sync
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75 lines
2.5 KiB
Go
75 lines
2.5 KiB
Go
/*
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* # Licensed to the LF AI & Data foundation under one
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* # or more contributor license agreements. See the NOTICE file
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* # distributed with this work for additional information
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* # regarding copyright ownership. The ASF licenses this file
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* # to you under the Apache License, Version 2.0 (the
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* # "License"); you may not use this file except in compliance
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* # with the License. You may obtain a copy of the License at
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* #
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* # http://www.apache.org/licenses/LICENSE-2.0
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* #
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* # Unless required by applicable law or agreed to in writing, software
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* # distributed under the License is distributed on an "AS IS" BASIS,
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* # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* # See the License for the specific language governing permissions and
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* # limitations under the License.
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*/
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package chain
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import (
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"fmt"
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"sync"
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"github.com/milvus-io/milvus/pkg/v3/util/merr"
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)
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// =============================================================================
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// Operator Registry
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// =============================================================================
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// OperatorFactory is a function that creates an Operator from OperatorRepr.
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type OperatorFactory func(repr *OperatorRepr) (Operator, error)
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var (
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operatorRegistryMu sync.RWMutex
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operatorRegistry = make(map[string]OperatorFactory)
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)
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// RegisterOperator registers an operator factory.
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// Returns an error if an operator with the same type is already registered.
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func RegisterOperator(opType string, factory OperatorFactory) error {
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if opType == "" {
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return merr.WrapErrParameterMissingMsg("operator type cannot be empty")
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}
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if factory == nil {
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return merr.WrapErrServiceInternalMsg("operator factory cannot be nil for %q", opType)
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}
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operatorRegistryMu.Lock()
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defer operatorRegistryMu.Unlock()
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if _, exists := operatorRegistry[opType]; exists {
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return merr.WrapErrServiceInternalMsg("operator %q already registered", opType)
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}
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operatorRegistry[opType] = factory
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return nil
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}
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// MustRegisterOperator registers an operator factory and panics on error.
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// Use this in init() functions to fail fast on registration errors.
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func MustRegisterOperator(opType string, factory OperatorFactory) {
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if err := RegisterOperator(opType, factory); err != nil {
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panic(fmt.Sprintf("failed to register operator: %v", err))
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}
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}
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// GetOperatorFactory returns the factory for the given operator type.
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func GetOperatorFactory(opType string) (OperatorFactory, bool) {
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operatorRegistryMu.RLock()
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defer operatorRegistryMu.RUnlock()
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factory, ok := operatorRegistry[opType]
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return factory, ok
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}
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