func (f binaryRecordFormatV0) readDecimal(r *rw.ReadSeeker) interface{} {
scale := int(r.ReadInt())
value := big.NewInt(0).SetBytes(r.ReadBytes())
return orient.Decimal{
Scale: scale,
Value: value,
}
}
func (f binaryRecordFormatV0) readLinkCollection(r *rw.ReadSeeker) []orient.OIdentifiable {
n := int(r.ReadVarint())
out := make([]orient.OIdentifiable, n)
for i := range out {
if id := f.readOptimizedLink(r); id != nilRID {
out[i] = id
}
}
return out
}
func (f binaryRecordFormatV0) readLinkMap(r *rw.ReadSeeker, doc *orient.Document) (interface{}, error) {
size := int(r.ReadVarint())
if size == 0 {
return nil, r.Err()
}
type entry struct {
Key interface{}
Val orient.OIdentifiable
}
var (
result = make([]entry, 0, size) // TODO: can't return just this slice, need some public implementation
keyTypes = make(map[orient.OType]bool, 2)
)
for i := 0; i < size; i++ {
keyType := f.readOType(r)
keyTypes[keyType] = true
key, err := f.readSingleValue(r, keyType, doc)
if err != nil {
return nil, err
}
value := f.readOptimizedLink(r)
if value == nilRID {
result = append(result, entry{Key: key, Val: nil})
} else {
result = append(result, entry{Key: key, Val: value})
}
}
if len(keyTypes) == 1 { // TODO: reflect-based converter
tp := orient.UNKNOWN
for k, _ := range keyTypes {
tp = k
break
}
switch tp {
case orient.UNKNOWN:
return result, nil
case orient.STRING:
mp := make(map[string]orient.OIdentifiable, len(result))
for _, kv := range result {
mp[kv.Key.(string)] = kv.Val
}
return mp, nil
default:
panic(fmt.Errorf("don't how to make map of type %v", tp))
}
} else {
panic(fmt.Errorf("map with different key type: %+v", keyTypes))
}
//return result
}
func (f binaryRecordFormatV0) readEmbeddedCollection(r *rw.ReadSeeker, doc *orient.Document) ([]interface{}, error) {
n := int(r.ReadVarint())
if vtype := f.readOType(r); vtype == orient.ANY {
out := make([]interface{}, n) // TODO: convert to determined slice type with reflect?
var err error
for i := range out {
if itemType := f.readOType(r); itemType != orient.ANY {
out[i], err = f.readSingleValue(r, itemType, doc)
if err != nil {
return nil, err
}
}
}
return out, nil
}
// TODO: @orient: manage case where type is known
return nil, r.Err()
}
func (f binaryRecordFormatV0) readSingleValue(r *rw.ReadSeeker, valueType orient.OType, doc *orient.Document) (value interface{}, err error) {
defer func() {
if r := recover(); r != nil {
if ic, ok := r.(*runtime.TypeAssertionError); ok {
err = fmt.Errorf("writeSingleValue(%v): %v", valueType, ic)
} else {
panic(r)
}
}
}()
switch valueType {
case orient.INTEGER:
value = int32(r.ReadVarint())
case orient.LONG:
value = int64(r.ReadVarint())
case orient.SHORT:
value = int16(r.ReadVarint())
case orient.STRING:
value = f.readString(r)
case orient.DOUBLE:
value = r.ReadDouble()
case orient.FLOAT:
value = r.ReadFloat()
case orient.BYTE:
value = f.readByte(r)
case orient.BOOLEAN:
value = f.readByte(r) == 1
case orient.DATETIME:
longTime := r.ReadVarint()
value = time.Unix(longTime/1000, (longTime%1000)*1e6)
case orient.DATE:
// long savedTime = OVarIntSerializer.readAsLong(bytes) * MILLISEC_PER_DAY;
// int offset = ODateHelper.getDatabaseTimeZone().getOffset(savedTime);
// value = new Date(savedTime - offset);
savedTime := r.ReadVarint() * millisecPerDay
t := time.Unix(savedTime/1000, (savedTime%1000)*1e6) //.UTC().Local()
// _, offset := t.Zone()
// value = t.Add(-time.Duration(offset) * time.Second)
value = t
case orient.EMBEDDED:
doc2 := orient.NewEmptyDocument()
if err = f.Deserialize(doc2, r); err != nil {
return nil, err
}
value = doc2
// if (((ODocument) value).containsField(ODocumentSerializable.CLASS_NAME)) {
// String className = ((ODocument) value).field(ODocumentSerializable.CLASS_NAME);
// try {
// Class<?> clazz = Class.forName(className);
// ODocumentSerializable newValue = (ODocumentSerializable) clazz.newInstance();
// newValue.fromDocument((ODocument) value);
// value = newValue;
// } catch (Exception e) {
// throw new RuntimeException(e);
// }
// } else
// ODocumentInternal.addOwner((ODocument) value, document);
case orient.EMBEDDEDSET, orient.EMBEDDEDLIST:
value, err = f.readEmbeddedCollection(r, doc)
case orient.LINKSET, orient.LINKLIST:
value = f.readLinkCollection(r)
case orient.BINARY:
value = f.readBinary(r)
case orient.LINK:
value = f.readOptimizedLink(r)
case orient.LINKMAP:
value, err = f.readLinkMap(r, doc)
case orient.EMBEDDEDMAP:
value, err = f.readEmbeddedMap(r, doc)
case orient.DECIMAL:
value = f.readDecimal(r)
case orient.LINKBAG:
bag := orient.NewRidBag()
if err = bag.FromStream(r); err != nil {
return nil, err
}
bag.SetOwner(doc)
value = bag
case orient.TRANSIENT:
case orient.ANY:
case orient.CUSTOM:
// TODO: implement via Register global function
panic("CUSTOM type is not supported for now")
// try {
// String className = readString(bytes);
// Class<?> clazz = Class.forName(className);
// OSerializableStream stream = (OSerializableStream) clazz.newInstance();
// stream.fromStream(readBinary(bytes));
// if (stream instanceof OSerializableWrapper)
// value = ((OSerializableWrapper) stream).getSerializable();
// else
// value = stream;
// } catch (Exception e) {
// throw new RuntimeException(e);
// }
}
if err == nil {
err = r.Err()
}
return
}
func (f binaryRecordFormatV0) readEmbeddedMap(r *rw.ReadSeeker, doc *orient.Document) (interface{}, error) {
size := int(r.ReadVarint())
if size == 0 {
return nil, r.Err()
}
last := int64(0)
type entry struct {
Key interface{}
Val interface{}
}
var (
result = make([]entry, 0, size) // TODO: can't return just this slice, need some public implementation
keyTypes = make(map[orient.OType]bool, 1)
valueTypes = make(map[orient.OType]bool, 2)
)
for i := 0; i < size; i++ {
keyType := f.readOType(r)
key, err := f.readSingleValue(r, keyType, doc)
if err != nil {
return nil, err
}
valuePos := f.readInteger(r)
valueType := f.readOType(r)
keyTypes[keyType] = true
valueTypes[valueType] = true
if valuePos != 0 {
headerCursor, _ := r.Seek(0, 1)
r.Seek(int64(valuePos), 0)
value, err := f.readSingleValue(r, valueType, doc)
if err != nil {
return nil, err
}
if off, _ := r.Seek(0, 1); off > last {
last = off
}
r.Seek(headerCursor, 0)
result = append(result, entry{Key: key, Val: value})
} else {
result = append(result, entry{Key: key, Val: nil})
}
}
if off, _ := r.Seek(0, 1); last > off {
r.Seek(last, 0)
}
if err := r.Err(); err != nil {
return nil, err
}
//fmt.Printf("embedded map: types: %+v, vals: %+v\n", keyTypes, valueTypes)
var (
keyType reflect.Type
valType reflect.Type = orient.UNKNOWN.ReflectType()
)
if len(keyTypes) == 1 {
for k, _ := range keyTypes {
if k == orient.UNKNOWN {
return result, nil
}
keyType = k.ReflectType()
break
}
} else {
panic(fmt.Errorf("map with different key type: %+v", keyTypes))
}
if len(valueTypes) == 1 {
for v, _ := range valueTypes {
valType = v.ReflectType()
break
}
}
rv := reflect.MakeMap(reflect.MapOf(keyType, valType))
for _, kv := range result {
rv.SetMapIndex(reflect.ValueOf(kv.Key), reflect.ValueOf(kv.Val))
}
return rv.Interface(), nil
}
func (f binaryRecordFormatV0) readOptimizedLink(r *rw.ReadSeeker) orient.RID {
return orient.RID{ClusterID: int16(r.ReadVarint()), ClusterPos: int64(r.ReadVarint())}
}
func (f binaryRecordFormatV0) readInteger(r *rw.ReadSeeker) int32 {
return r.ReadInt()
}
func (f binaryRecordFormatV0) readString(r *rw.ReadSeeker) string {
return r.ReadStringVarint()
}
func (f binaryRecordFormatV0) readBinary(r *rw.ReadSeeker) []byte {
return r.ReadBytesVarint()
}
func (f binaryRecordFormatV0) readByte(r *rw.ReadSeeker) byte {
return r.ReadByte()
}
func (f binaryRecordFormatV0) Deserialize(doc *orient.Document, r *rw.ReadSeeker) error {
className := f.readString(r)
if err := r.Err(); err != nil {
return err
}
if len(className) != 0 {
doc.FillClassNameIfNeeded(className)
}
var (
fieldName string
valuePos int
valueType orient.OType
last int64
)
for {
//var prop core.OGlobalProperty
leng := int(r.ReadVarint())
if err := r.Err(); err != nil {
return err
}
if leng == 0 {
// SCAN COMPLETED
break
} else if leng > 0 {
// PARSE FIELD NAME
fieldNameBytes := make([]byte, leng)
r.ReadRawBytes(fieldNameBytes)
fieldName = string(fieldNameBytes)
valuePos = int(f.readInteger(r))
valueType = f.readOType(r)
} else {
// LOAD GLOBAL PROPERTY BY ID
prop := f.getGlobalProperty(doc, leng)
fieldName = prop.Name
valuePos = int(f.readInteger(r))
if prop.Type != orient.ANY {
valueType = prop.Type
} else {
valueType = f.readOType(r)
}
}
if doc.RawContainsField(fieldName) {
continue
}
if valuePos != 0 {
headerCursor, _ := r.Seek(0, 1)
r.Seek(int64(valuePos), 0)
value, err := f.readSingleValue(r, valueType, doc)
if err != nil {
return err
}
if cur, _ := r.Seek(0, 1); cur > last {
last = cur
}
r.Seek(headerCursor, 0)
doc.RawSetField(fieldName, value, valueType)
} else {
doc.RawSetField(fieldName, nil, orient.UNKNOWN)
}
}
//doc.ClearSource()
if cur, _ := r.Seek(0, 1); last > cur {
r.Seek(last, 0)
}
return r.Err()
}