/
filter.go
68 lines (60 loc) · 1.9 KB
/
filter.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 sink
import "sync"
type FlushFilter struct {
mutex sync.RWMutex
Labels []string
Keys []string
}
var flushFilterInstance FlushFilter
// deep copy
func SetFilterLabels(labels []string) {
flushFilterInstance.mutex.Lock()
defer flushFilterInstance.mutex.Unlock()
flushFilterInstance.Labels = make([]string, len(labels))
copy(flushFilterInstance.Labels, labels)
}
func SetFilterKeys(keys []string) {
flushFilterInstance.mutex.Lock()
defer flushFilterInstance.mutex.Unlock()
flushFilterInstance.Keys = make([]string, len(keys))
copy(flushFilterInstance.Keys, keys)
}
// If one of the input labels matched the filter's labels, returns true
func IsExclusionLabels(labels []string) bool {
flushFilterInstance.mutex.RLock()
defer flushFilterInstance.mutex.RUnlock()
for _, lb := range flushFilterInstance.Labels {
for _, l := range labels {
if l == lb {
return true
}
}
}
return false
}
func IsExclusionKeys(key string) bool {
flushFilterInstance.mutex.RLock()
defer flushFilterInstance.mutex.RUnlock()
for _, k := range flushFilterInstance.Keys {
if k == key {
return true
}
}
return false
}