58 lines
1.5 KiB
Go
58 lines
1.5 KiB
Go
package querylog
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import "time"
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// searchParams represent the search query sent by the client
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type searchParams struct {
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// searchCriteria - list of search criteria that we use to get filter results
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searchCriteria []searchCriteria
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// olderThen - return entries that are older than this value
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// if not set - disregard it and return any value
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olderThan time.Time
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offset int // offset for the search
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limit int // limit the number of records returned
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maxFileScanEntries int // maximum log entries to scan in query log files. if 0 - no limit
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}
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// newSearchParams - creates an empty instance of searchParams
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func newSearchParams() *searchParams {
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return &searchParams{
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// default max log entries to return
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limit: 500,
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// by default, we scan up to 50k entries at once
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maxFileScanEntries: 50000,
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}
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}
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// quickMatchesGetDataParams - quickly checks if the line matches the searchParams
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// this method does not guarantee anything and the reason is to do a quick check
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// without deserializing anything
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func (s *searchParams) quickMatch(line string) bool {
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for _, c := range s.searchCriteria {
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if !c.quickMatch(line) {
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return false
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}
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}
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return true
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}
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// match - checks if the logEntry matches the searchParams
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func (s *searchParams) match(entry *logEntry) bool {
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if !s.olderThan.IsZero() && entry.Time.UnixNano() >= s.olderThan.UnixNano() {
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// Ignore entries newer than what was requested
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return false
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}
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for _, c := range s.searchCriteria {
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if !c.match(entry) {
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return false
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}
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}
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return true
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}
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