diff options
Diffstat (limited to 'libpod')
-rw-r--r-- | libpod/events/filters.go | 39 | ||||
-rw-r--r-- | libpod/events/journal_linux.go | 10 | ||||
-rw-r--r-- | libpod/events/logfile.go | 10 |
3 files changed, 38 insertions, 21 deletions
diff --git a/libpod/events/filters.go b/libpod/events/filters.go index acfb96302..4d27e8fc4 100644 --- a/libpod/events/filters.go +++ b/libpod/events/filters.go @@ -97,18 +97,41 @@ func parseFilter(filter string) (string, string, error) { return filterSplit[0], filterSplit[1], nil } -func generateEventOptions(filters []string, since, until string) ([]EventFilter, error) { - options := make([]EventFilter, 0, len(filters)) +// applyFilters applies the EventFilter slices in sequence. Filters under the +// same key are disjunctive while each key must match (conjuctive). +func applyFilters(event *Event, filterMap map[string][]EventFilter) bool { + for _, filters := range filterMap { + success := false + for _, filter := range filters { + if filter(event) { + success = true + break + } + } + if !success { + return false + } + } + return true +} + +// generateEventFilter parses the specified filters into a filter map that can +// later on be used to filter events. Keys are conjunctive, values are +// disjunctive. +func generateEventFilters(filters []string, since, until string) (map[string][]EventFilter, error) { + filterMap := make(map[string][]EventFilter) for _, filter := range filters { key, val, err := parseFilter(filter) if err != nil { return nil, err } - funcFilter, err := generateEventFilter(key, val) + filterFunc, err := generateEventFilter(key, val) if err != nil { return nil, err } - options = append(options, funcFilter) + filterSlice := filterMap[key] + filterSlice = append(filterSlice, filterFunc) + filterMap[key] = filterSlice } if len(since) > 0 { @@ -116,7 +139,8 @@ func generateEventOptions(filters []string, since, until string) ([]EventFilter, if err != nil { return nil, errors.Wrapf(err, "unable to convert since time of %s", since) } - options = append(options, generateEventSinceOption(timeSince)) + filterFunc := generateEventSinceOption(timeSince) + filterMap["since"] = []EventFilter{filterFunc} } if len(until) > 0 { @@ -124,7 +148,8 @@ func generateEventOptions(filters []string, since, until string) ([]EventFilter, if err != nil { return nil, errors.Wrapf(err, "unable to convert until time of %s", until) } - options = append(options, generateEventUntilOption(timeUntil)) + filterFunc := generateEventUntilOption(timeUntil) + filterMap["until"] = []EventFilter{filterFunc} } - return options, nil + return filterMap, nil } diff --git a/libpod/events/journal_linux.go b/libpod/events/journal_linux.go index 23e5f15b1..7006290e9 100644 --- a/libpod/events/journal_linux.go +++ b/libpod/events/journal_linux.go @@ -69,9 +69,9 @@ func (e EventJournalD) Write(ee Event) error { // Read reads events from the journal and sends qualified events to the event channel func (e EventJournalD) Read(ctx context.Context, options ReadOptions) error { defer close(options.EventChannel) - eventOptions, err := generateEventOptions(options.Filters, options.Since, options.Until) + filterMap, err := generateEventFilters(options.Filters, options.Since, options.Until) if err != nil { - return errors.Wrapf(err, "failed to generate event options") + return errors.Wrapf(err, "failed to parse event filters") } var untilTime time.Time if len(options.Until) > 0 { @@ -159,11 +159,7 @@ func (e EventJournalD) Read(ctx context.Context, options ReadOptions) error { } continue } - include := true - for _, filter := range eventOptions { - include = include && filter(newEvent) - } - if include { + if applyFilters(newEvent, filterMap) { options.EventChannel <- newEvent } } diff --git a/libpod/events/logfile.go b/libpod/events/logfile.go index 0f00525e8..952444f2b 100644 --- a/libpod/events/logfile.go +++ b/libpod/events/logfile.go @@ -44,9 +44,9 @@ func (e EventLogFile) Write(ee Event) error { // Reads from the log file func (e EventLogFile) Read(ctx context.Context, options ReadOptions) error { defer close(options.EventChannel) - eventOptions, err := generateEventOptions(options.Filters, options.Since, options.Until) + filterMap, err := generateEventFilters(options.Filters, options.Since, options.Until) if err != nil { - return errors.Wrapf(err, "unable to generate event options") + return errors.Wrapf(err, "failed to parse event filters") } t, err := e.getTail(options) if err != nil { @@ -92,11 +92,7 @@ func (e EventLogFile) Read(ctx context.Context, options ReadOptions) error { default: return errors.Errorf("event type %s is not valid in %s", event.Type.String(), e.options.LogFilePath) } - include := true - for _, filter := range eventOptions { - include = include && filter(event) - } - if include && copy { + if copy && applyFilters(event, filterMap) { options.EventChannel <- event } } |