istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pilot/pkg/serviceregistry/util/workloadinstances/map.go (about)

     1  // Copyright Istio Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package workloadinstances
    16  
    17  import (
    18  	"istio.io/istio/pkg/util/sets"
    19  )
    20  
    21  // MultiValueMap represents a map where each key might be associated with
    22  // multiple values.
    23  type MultiValueMap map[string]sets.String
    24  
    25  // Insert adds given (key, value) pair into the map.
    26  func (m MultiValueMap) Insert(key, value string) MultiValueMap {
    27  	sets.InsertOrNew(m, key, value)
    28  	return m
    29  }
    30  
    31  // Delete removes given (key, value) pair out of the map.
    32  func (m MultiValueMap) Delete(key, value string) MultiValueMap {
    33  	sets.DeleteCleanupLast(m, key, value)
    34  	return m
    35  }