//
// writeDateTime takes an interface{} value that must be of type:
// - time.Time
// - int or int64, representing milliseconds since Epoch
//
// NOTE: format for OrientDB DATETIME:
// Golang formatted date: 2006-01-02 03:04:05
// Example: 2014-11-25 09:14:54
//
// OrientDB server converts a DATETIME type to millisecond unix epoch and
// stores it as the type LONG. It is written as a varint long to the
// obuf.WriteBuf passed in.
//
func writeDateTime(buf *obuf.WriteBuf, value interface{}) error {
var millisEpoch int64
switch value.(type) {
case int:
millisEpoch = int64(value.(int))
case int64:
millisEpoch = value.(int64)
case time.Time:
// UnixNano returns t as a Unix time, the number of nanoseconds elapsed
// since January 1, 1970 UTC.
tm := value.(time.Time)
tt := tm.Round(time.Millisecond)
millisEpoch = tt.UnixNano() / (1000 * 1000)
default:
return oerror.ErrDataTypeMismatch{
ExpectedDataType: oschema.DATETIME,
ExpectedGoType: "time.Time | int64 | int",
ActualValue: value,
}
}
err := varint.EncodeAndWriteVarInt64(buf, millisEpoch)
if err != nil {
return oerror.NewTrace(err)
}
return nil
}
//
// +-----------------+-----------------+
// |clusterId:varint | recordId:varInt |
// +-----------------+-----------------+
//
func (serde ORecordSerializerV0) writeLink(buf *obuf.WriteBuf, lnk *oschema.OLink) error {
err := varint.EncodeAndWriteVarInt32(buf, int32(lnk.RID.ClusterID))
if err != nil {
return oerror.NewTrace(err)
}
err = varint.EncodeAndWriteVarInt64(buf, lnk.RID.ClusterPos)
if err != nil {
return oerror.NewTrace(err)
}
return nil
}
//
// writeDateTime takes an interface{} value that must be of type time.Time
//
// NOTE: format for OrientDB DATETIME:
// Golang formatted date: 2006-01-02 03:04:05
// Example: 2014-11-25 09:14:54
//
// OrientDB server converts a DATETIME type to millisecond unix epoch and
// stores it as the type LONG. It is written as a varint long to the
// obuf.WriteBuf passed in.
//
// From the OrientDB schemaless serialization spec on DATE:
// The date is converted to second unix epoch,moved at midnight UTC+0,
// divided by 86400(seconds in a day) and stored as the type LONG
//
func writeDate(buf *obuf.WriteBuf, value interface{}) error {
tm, ok := value.(time.Time)
if !ok {
return oerror.ErrDataTypeMismatch{
ExpectedDataType: oschema.DATE,
ExpectedGoType: "time.Time",
ActualValue: value,
}
}
tmMidnightUTC := time.Date(tm.Year(), tm.Month(), tm.Day(), 0, 0, 0, 0, time.FixedZone("UTC", 0))
secondsEpoch := tmMidnightUTC.Unix()
dateAfterDiv := secondsEpoch / int64(86400)
err := varint.EncodeAndWriteVarInt64(buf, dateAfterDiv)
if err != nil {
return oerror.NewTrace(err)
}
return nil
}
//
// writeDataValue is part of the Serialize functionality
// TODO: change name to writeSingleValue ?
//
func (serde ORecordSerializerV0) writeDataValue(buf *obuf.WriteBuf, value interface{}, datatype oschema.ODataType) (err error) {
switch datatype {
case oschema.STRING:
err = varint.WriteString(buf, value.(string))
ogl.Debugf("DEBUG STR: -writeDataVal val: %v\n", value.(string)) // DEBUG
case oschema.BOOLEAN:
err = rw.WriteBool(buf, value.(bool))
ogl.Debugf("DEBUG BOOL: -writeDataVal val: %v\n", value.(bool)) // DEBUG
case oschema.INTEGER:
var i32val int32
i32val, err = toInt32(value)
if err == nil {
err = varint.EncodeAndWriteVarInt32(buf, i32val) // TODO: are serialized integers ALWAYS varint encoded?
ogl.Debugf("DEBUG INT: -writeDataVal val: %v\n", i32val) // DEBUG
}
case oschema.SHORT:
// TODO: needs toInt16 conversion fn
err = varint.EncodeAndWriteVarInt32(buf, int32(value.(int16)))
ogl.Debugf("DEBUG SHORT: -writeDataVal val: %v\n", value.(int16)) // DEBUG
case oschema.LONG:
var i64val int64
i64val, err = toInt64(value)
if err == nil {
err = varint.EncodeAndWriteVarInt64(buf, i64val) // TODO: are serialized longs ALWAYS varint encoded?
ogl.Debugf("DEBUG LONG: -writeDataVal val: %v\n", i64val) // DEBUG
}
case oschema.FLOAT:
var f32 float32
f32, err = toFloat32(value)
if err == nil {
err = rw.WriteFloat(buf, f32)
}
ogl.Debugf("DEBUG FLOAT: -writeDataVal val: %v\n", value) // DEBUG
case oschema.DOUBLE:
var f64 float64
f64, err = toFloat64(value)
if err == nil {
err = rw.WriteDouble(buf, f64)
}
ogl.Debugf("DEBUG DOUBLE: -writeDataVal val: %v\n", value.(float64)) // DEBUG
case oschema.DATETIME:
err = writeDateTime(buf, value)
ogl.Debugf("DEBUG DATETIME: -writeDataVal val: %v\n", value) // DEBUG
case oschema.DATE:
err = writeDate(buf, value)
ogl.Debugf("DEBUG DATE: -writeDataVal val: %v\n", value) // DEBUG
case oschema.BINARY:
err = varint.WriteBytes(buf, value.([]byte))
ogl.Debugf("DEBUG BINARY: -writeDataVal val: %v\n", value.([]byte)) // DEBUG
case oschema.EMBEDDED:
err = serde.serializeDocument(buf, value.(*oschema.ODocument))
ogl.Debugf("DEBUG EMBEDDED: -writeDataVal val: %v\n", value) // DEBUG
case oschema.EMBEDDEDLIST:
err = serde.serializeEmbeddedCollection(buf, value.(oschema.OEmbeddedList))
ogl.Debugf("DEBUG EMBD-LIST: -writeDataVal val: %v\n", value) // DEBUG
case oschema.EMBEDDEDSET:
err = serde.serializeEmbeddedCollection(buf, value.(oschema.OEmbeddedList))
ogl.Debugf("DEBUG EMBD-SET: -writeDataVal val: %v\n", value) // DEBUG
case oschema.EMBEDDEDMAP:
err = serde.writeEmbeddedMap(buf, value.(oschema.OEmbeddedMap))
ogl.Debugf("DEBUG EMBEDDEDMAP: val %v\n", value.(oschema.OEmbeddedMap))
case oschema.LINK:
err = serde.writeLink(buf, value.(*oschema.OLink))
ogl.Debugf("DEBUG LINK: val %v\n", value) // DEBUG
case oschema.LINKLIST:
err = serde.writeLinkList(buf, value.([]*oschema.OLink))
ogl.Debugf("DEBUG LINKLIST: val %v\n", value) // DEBUG
case oschema.LINKSET:
err = serde.writeLinkList(buf, value.([]*oschema.OLink))
ogl.Debugf("DEBUG LINKSET: val %v\n", value) // DEBUG
case oschema.LINKMAP:
err = serde.writeLinkMap(buf, value.(map[string]*oschema.OLink))
ogl.Debugf("DEBUG LINKMAP: val %v\n", value) // DEBUG
case oschema.BYTE:
err = rw.WriteByte(buf, value.(byte))
ogl.Debugf("DEBUG BYTE: -writeDataVal val: %v\n", value.(byte)) // DEBUG
case oschema.DECIMAL:
// TODO: impl me -> Java client uses BigDecimal for this
panic("ORecordSerializerV0#writeDataValue DECIMAL NOT YET IMPLEMENTED")
case oschema.CUSTOM:
// TODO: impl me
panic("ORecordSerializerV0#writeDataValue CUSTOM NOT YET IMPLEMENTED")
case oschema.LINKBAG:
panic("ORecordSerializerV0#writeDataValue LINKBAG NOT YET IMPLEMENTED")
default:
// ANY and TRANSIENT are do nothing ops
}
return err
}