forked from TrueCloudLab/frostfs-s3-gw
84 lines
2.5 KiB
Go
84 lines
2.5 KiB
Go
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/*
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* MinIO Cloud Storage, (C) 2018 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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 event
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// RulesMap - map of rules for every event name.
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type RulesMap map[Name]Rules
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// add - adds event names, prefixes, suffixes and target ID to rules map.
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func (rulesMap RulesMap) add(eventNames []Name, pattern string, targetID TargetID) {
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rules := make(Rules)
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rules.Add(pattern, targetID)
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for _, eventName := range eventNames {
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for _, name := range eventName.Expand() {
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rulesMap[name] = rulesMap[name].Union(rules)
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}
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}
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}
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// Clone - returns copy of this rules map.
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func (rulesMap RulesMap) Clone() RulesMap {
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rulesMapCopy := make(RulesMap)
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for eventName, rules := range rulesMap {
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rulesMapCopy[eventName] = rules.Clone()
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}
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return rulesMapCopy
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}
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// Add - adds given rules map.
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func (rulesMap RulesMap) Add(rulesMap2 RulesMap) {
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for eventName, rules := range rulesMap2 {
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rulesMap[eventName] = rules.Union(rulesMap[eventName])
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}
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}
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// Remove - removes given rules map.
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func (rulesMap RulesMap) Remove(rulesMap2 RulesMap) {
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for eventName, rules := range rulesMap {
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if nr := rules.Difference(rulesMap2[eventName]); len(nr) != 0 {
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rulesMap[eventName] = nr
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} else {
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delete(rulesMap, eventName)
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}
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}
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}
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// MatchSimple - returns true if matching object name and event name in rules map.
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func (rulesMap RulesMap) MatchSimple(eventName Name, objectName string) bool {
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return rulesMap[eventName].MatchSimple(objectName)
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}
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// Match - returns TargetIDSet matching object name and event name in rules map.
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func (rulesMap RulesMap) Match(eventName Name, objectName string) TargetIDSet {
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return rulesMap[eventName].Match(objectName)
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}
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// NewRulesMap - creates new rules map with given values.
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func NewRulesMap(eventNames []Name, pattern string, targetID TargetID) RulesMap {
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// If pattern is empty, add '*' wildcard to match all.
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if pattern == "" {
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pattern = "*"
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}
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rulesMap := make(RulesMap)
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rulesMap.add(eventNames, pattern, targetID)
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return rulesMap
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}
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