03fed8ca59
Now root and phy (leaf) filters work like flags. They work with any matcher and any value. So meta-storage sets `true` value for all root and phy objects and puts them into separate bucket. We also do not work with inversion anymore, so it either added to the bucket or not. We don't need to store both options. This is the reason `selectAll` function is changed a bit. Now it performs some low-level parsing from primary bucket and root bucket. Signed-off-by: Alex Vanin <alexey@nspcc.ru>
94 lines
1.8 KiB
Go
94 lines
1.8 KiB
Go
package meta
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import (
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"github.com/nspcc-dev/neofs-api-go/pkg/object"
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v2object "github.com/nspcc-dev/neofs-api-go/v2/object"
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"github.com/nspcc-dev/neofs-node/pkg/util/logger"
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"go.etcd.io/bbolt"
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"go.uber.org/zap"
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)
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// DB represents local metabase of storage node.
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type DB struct {
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path string
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*cfg
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matchers map[object.SearchMatchType]func(string, string, string) bool
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}
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// Option is an option of DB constructor.
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type Option func(*cfg)
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type cfg struct {
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boltDB *bbolt.DB
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log *logger.Logger
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}
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func defaultCfg() *cfg {
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return &cfg{
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log: zap.L(),
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}
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}
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// NewDB creates, initializes and returns DB instance.
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func NewDB(opts ...Option) *DB {
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c := defaultCfg()
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for i := range opts {
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opts[i](c)
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}
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return &DB{
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path: c.boltDB.Path(),
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cfg: c,
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matchers: map[object.SearchMatchType]func(string, string, string) bool{
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object.MatchUnknown: unknownMatcher,
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object.MatchStringEqual: stringEqualMatcher,
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},
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}
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}
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func (db *DB) Close() error {
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return db.boltDB.Close()
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}
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// Path returns the path to meta database.
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func (db *DB) Path() string {
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return db.path
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}
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func stringEqualMatcher(key, objVal, filterVal string) bool {
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switch key {
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default:
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return objVal == filterVal
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case v2object.FilterPropertyChildfree:
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return (filterVal == v2object.BooleanPropertyValueTrue) == (objVal == v2object.BooleanPropertyValueTrue)
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case v2object.FilterPropertyPhy, v2object.FilterPropertyRoot:
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return true
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}
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}
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func unknownMatcher(key, _, _ string) bool {
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switch key {
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default:
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return false
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case v2object.FilterPropertyPhy, v2object.FilterPropertyRoot:
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return true
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}
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}
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// FromBoltDB returns option to construct DB from BoltDB instance.
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func FromBoltDB(db *bbolt.DB) Option {
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return func(c *cfg) {
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c.boltDB = db
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}
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}
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// WithLogger returns option to set logger of DB.
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func WithLogger(l *logger.Logger) Option {
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return func(c *cfg) {
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c.log = l
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}
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}
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