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Source file src/github.com/prometheus/alertmanager/nflog/nflogpb/set.go

Documentation: github.com/prometheus/alertmanager/nflog/nflogpb

     1  // Copyright 2017 Prometheus Team
     2  // Licensed under the Apache License, Version 2.0 (the "License");
     3  // you may not use this file except in compliance with the License.
     4  // You may obtain a copy of the License at
     5  //
     6  // http://www.apache.org/licenses/LICENSE-2.0
     7  //
     8  // Unless required by applicable law or agreed to in writing, software
     9  // distributed under the License is distributed on an "AS IS" BASIS,
    10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package nflogpb
    15  
    16  // IsFiringSubset returns whether the given subset is a subset of the alerts
    17  // that were firing at the time of the last notification.
    18  func (m *Entry) IsFiringSubset(subset map[uint64]struct{}) bool {
    19  	set := map[uint64]struct{}{}
    20  	for i := range m.FiringAlerts {
    21  		set[m.FiringAlerts[i]] = struct{}{}
    22  	}
    23  
    24  	return isSubset(set, subset)
    25  }
    26  
    27  // IsResolvedSubset returns whether the given subset is a subset of the alerts
    28  // that were resolved at the time of the last notification.
    29  func (m *Entry) IsResolvedSubset(subset map[uint64]struct{}) bool {
    30  	set := map[uint64]struct{}{}
    31  	for i := range m.ResolvedAlerts {
    32  		set[m.ResolvedAlerts[i]] = struct{}{}
    33  	}
    34  
    35  	return isSubset(set, subset)
    36  }
    37  
    38  func isSubset(set, subset map[uint64]struct{}) bool {
    39  	for k := range subset {
    40  		_, exists := set[k]
    41  		if !exists {
    42  			return false
    43  		}
    44  	}
    45  
    46  	return true
    47  }
    48  

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