mirror of
https://github.com/featurebasedb/featurebase.git
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b873b4c084
This commit refactors the profile and bitmap attribute stores so that they share the same code. There is a new `AttrStore` which associates key/value pairs with a `uint64` identifier. The previous JSON encoding has been fixed to use protobufs which fixes encoding issues for int64.
74 lines
1.8 KiB
Go
74 lines
1.8 KiB
Go
package pilosa
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import (
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"errors"
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"github.com/gogo/protobuf/proto"
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"github.com/umbel/pilosa/internal"
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)
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//go:generate protoc --gogo_out=. internal/internal.proto
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var (
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// ErrHostRequired is returned when excuting a remote operation without a host.
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ErrHostRequired = errors.New("host required")
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// ErrDatabaseRequired is returned when no database is specified.
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ErrDatabaseRequired = errors.New("database required")
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// ErrFrameRequired is returned when no frame is specified.
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ErrFrameRequired = errors.New("frame required")
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)
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// Version represents the current running version of Pilosa.
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var Version string
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// Profile represents vertical column in a database.
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// A profile can have a set of attributes attached to it.
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type Profile struct {
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ID uint64 `json:"id"`
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Attrs map[string]interface{} `json:"attrs,omitempty"`
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}
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// encodeProfiles converts a into its internal representation.
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func encodeProfiles(a []*Profile) []*internal.Profile {
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other := make([]*internal.Profile, len(a))
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for i := range a {
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other[i] = encodeProfile(a[i])
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}
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return other
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}
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// decodeProfiles converts a from its internal representation.
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func decodeProfiles(a []*internal.Profile) []*Profile {
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other := make([]*Profile, len(a))
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for i := range a {
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other[i] = decodeProfile(a[i])
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}
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return other
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}
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// encodeProfile converts p into its internal representation.
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func encodeProfile(p *Profile) *internal.Profile {
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return &internal.Profile{
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ID: proto.Uint64(p.ID),
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Attrs: encodeAttrs(p.Attrs),
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}
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}
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// decodeProfile converts b from its internal representation.
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func decodeProfile(pb *internal.Profile) *Profile {
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p := &Profile{
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ID: pb.GetID(),
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}
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if len(pb.GetAttrs()) > 0 {
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p.Attrs = make(map[string]interface{}, len(pb.GetAttrs()))
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for _, attr := range pb.GetAttrs() {
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k, v := decodeAttr(attr)
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p.Attrs[k] = v
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}
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}
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return p
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}
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