本文整理汇总了Golang中gopkg/in/istreamdata/orientgo/v2/obinary/rw.ReadSeeker.Seek方法的典型用法代码示例。如果您正苦于以下问题：Golang ReadSeeker.Seek方法的具体用法？Golang ReadSeeker.Seek怎么用？Golang ReadSeeker.Seek使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类gopkg/in/istreamdata/orientgo/v2/obinary/rw.ReadSeeker的用法示例。
在下文中一共展示了ReadSeeker.Seek方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: readEmbeddedMap
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
}示例2: Deserialize
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()
}