func (this *InitialGroup) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string "#operator"
Keys []string "group_keys"
Aggs []string "aggregates"
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
this.keys = make(expression.Expressions, len(_unmarshalled.Keys))
for i, key := range _unmarshalled.Keys {
key_expr, err := parser.Parse(key)
if err != nil {
return err
}
this.keys[i] = key_expr
}
this.aggregates = make(algebra.Aggregates, len(_unmarshalled.Aggs))
for i, agg := range _unmarshalled.Aggs {
agg_expr, err := parser.Parse(agg)
if err != nil {
return err
}
this.aggregates[i], _ = agg_expr.(algebra.Aggregate)
}
return nil
}
func init() {
qpServer = startQueryport("localhost:9998", serverCallb)
ns := &namespace{
name: "default",
keyspaceCache: make(map[string]datastore.Keyspace),
}
ks := &keyspace{
namespace: ns,
name: "default",
indexes: make(map[string]datastore.Index),
}
expr, err := parser.Parse(`gender`)
if err != nil {
log.Fatal(err)
}
equalKey := expression.Expressions{expr}
expr, err = parser.Parse(`name`)
if err != nil {
log.Fatal(err)
}
rangeKey := expression.Expressions{expr}
whereKey, err := parser.Parse("(30 < `age`)")
if err != nil {
log.Fatal(err)
}
index, _ = new2iIndex(
"testindex", equalKey, rangeKey, whereKey, "gsi", ks)
index.setHost([]string{"localhost:9998"})
}
func (this *SendUpsert) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
KeyExpr string `json:"key"`
ValueExpr string `json:"value"`
Keys string `json:"keyspace"`
Names string `json:"namespace"`
Alias string `json:"alias"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
if _unmarshalled.KeyExpr != "" {
this.key, err = parser.Parse(_unmarshalled.KeyExpr)
if err != nil {
return err
}
}
if _unmarshalled.ValueExpr != "" {
this.value, err = parser.Parse(_unmarshalled.ValueExpr)
if err != nil {
return err
}
}
this.alias = _unmarshalled.Alias
this.keyspace, err = datastore.GetKeyspace(_unmarshalled.Names, _unmarshalled.Keys)
return nil
}
func (this *Range) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
Low []string
High []string
Inclusion datastore.Inclusion
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
if _unmarshalled.Low != nil {
this.Low = make(expression.Expressions, len(_unmarshalled.Low))
for l, lowExpr := range _unmarshalled.Low {
this.Low[l], err = parser.Parse(lowExpr)
if err != nil {
return err
}
}
}
if _unmarshalled.High != nil {
this.High = make(expression.Expressions, len(_unmarshalled.High))
for h, hiExpr := range _unmarshalled.High {
this.High[h], err = parser.Parse(hiExpr)
if err != nil {
return err
}
}
}
this.Inclusion = _unmarshalled.Inclusion
return nil
}
func (this *IndexScan) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Index string `json:"index"`
Namespace string `json:"namespace"`
Keyspace string `json:"keyspace"`
Using datastore.IndexType `json:"using"`
Spans Spans `json:"spans"`
Distinct bool `json:"distinct"`
Limit string `json:"limit"`
Covers []string `json:"covers"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
k, err := datastore.GetKeyspace(_unmarshalled.Namespace, _unmarshalled.Keyspace)
if err != nil {
return err
}
this.term = algebra.NewKeyspaceTerm(
_unmarshalled.Namespace, _unmarshalled.Keyspace,
nil, "", nil, nil)
this.spans = _unmarshalled.Spans
this.distinct = _unmarshalled.Distinct
if _unmarshalled.Limit != "" {
this.limit, err = parser.Parse(_unmarshalled.Limit)
if err != nil {
return err
}
}
if _unmarshalled.Covers != nil {
this.covers = make(expression.Covers, len(_unmarshalled.Covers))
for i, c := range _unmarshalled.Covers {
expr, err := parser.Parse(c)
if err != nil {
return err
}
this.covers[i] = expression.NewCover(expr)
}
}
indexer, err := k.Indexer(_unmarshalled.Using)
if err != nil {
return err
}
this.index, err = indexer.IndexByName(_unmarshalled.Index)
return err
}
func (this *Span) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
Seek []string
Range *Range
}
_unmarshalled.Range = &this.Range
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
if _unmarshalled.Seek != nil {
this.Seek = make(expression.Expressions, len(_unmarshalled.Seek))
for j, seekExpr := range _unmarshalled.Seek {
this.Seek[j], err = parser.Parse(seekExpr)
if err != nil {
return err
}
}
}
return nil
}
// Condition implement Index{} interface.
func (si *secondaryIndex) Condition() expression.Expression {
if si != nil && si.whereExpr != "" {
expr, _ := parser.Parse(si.whereExpr)
return expr
}
return nil
}
func (this *SendUpdate) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Keys string `json:"keyspace"`
Names string `json:"namespace"`
Alias string `json:"alias"`
Limit string `json:"limit"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
this.alias = _unmarshalled.Alias
if _unmarshalled.Limit != "" {
this.limit, err = parser.Parse(_unmarshalled.Limit)
if err != nil {
return err
}
}
this.keyspace, err = datastore.GetKeyspace(_unmarshalled.Names, _unmarshalled.Keys)
return err
}
func (this *Let) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Bindings []struct {
_ string `json:"type"`
Var string `json:"variable"`
Expr string `json:"variable"`
Desc bool `json:"descend"`
} `json:"bindings"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
this.bindings = make(expression.Bindings, len(_unmarshalled.Bindings))
for i, binding := range _unmarshalled.Bindings {
expr, err := parser.Parse(binding.Expr)
if err != nil {
return err
}
if binding.Desc {
this.bindings[i] = expression.NewDescendantBinding(binding.Var, expr)
} else {
this.bindings[i] = expression.NewBinding(binding.Var, expr)
}
}
return nil
}
/*
Unmarshals byte array.
*/
func UnmarshalUpdateFor(body []byte) (*algebra.UpdateFor, error) {
var _unmarshalled struct {
Bindings json.RawMessage `json:"bindings"`
When string `json:"when"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return nil, err
}
bindings, err := unmarshal.UnmarshalBindings(_unmarshalled.Bindings)
if err != nil {
return nil, err
}
var when expression.Expression
if _unmarshalled.When != "" {
when, err = parser.Parse(_unmarshalled.When)
if err != nil {
return nil, err
}
}
return algebra.NewUpdateFor(bindings, when), nil
}
func (this *Unnest) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Outer bool `json:"outer"`
Expr string `json:"expr"`
As string `json:"as"`
}
var expr expression.Expression
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
if _unmarshalled.Expr != "" {
expr, err = parser.Parse(_unmarshalled.Expr)
if err != nil {
return err
}
}
this.term = algebra.NewUnnest(nil, _unmarshalled.Outer, expr, _unmarshalled.As)
this.alias = _unmarshalled.As
return err
}
func (this *ValueScan) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Values string `json:"values"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
if _unmarshalled.Values == "" {
return nil
}
expr, err := parser.Parse(_unmarshalled.Values)
if err != nil {
return err
}
array, ok := expr.(*expression.ArrayConstruct)
if !ok {
return fmt.Errorf("Invalid VALUES expression %s", _unmarshalled.Values)
}
this.values, err = algebra.NewPairs(array)
return err
}
func (this *Join) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Names string `json:"namespace"`
Keys string `json:"keyspace"`
On string `json:"on_keys"`
Outer bool `json:"outer"`
As string `json:"as"`
}
var keys_expr expression.Expression
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
if _unmarshalled.On != "" {
keys_expr, err = parser.Parse(_unmarshalled.On)
if err != nil {
return err
}
}
this.outer = _unmarshalled.Outer
this.term = algebra.NewKeyspaceTerm(_unmarshalled.Names, _unmarshalled.Keys,
nil, _unmarshalled.As, keys_expr, nil)
this.keyspace, err = datastore.GetKeyspace(_unmarshalled.Names, _unmarshalled.Keys)
return err
}
func UnmarshalBindings(body []byte) (expression.Bindings, error) {
var _unmarshalled []struct {
Var string `json:"variable"`
Expr string `json:"expr"`
Desc bool `json:"descend"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return nil, err
}
bindings := make(expression.Bindings, len(_unmarshalled))
for i, binding := range _unmarshalled {
expr, err := parser.Parse(binding.Expr)
if err != nil {
return nil, err
}
if binding.Desc {
bindings[i] = expression.NewDescendantBinding(binding.Var, expr)
} else {
bindings[i] = expression.NewBinding(binding.Var, expr)
}
}
return bindings, nil
}
func (this *Fetch) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Proj string `json:"projection"`
Names string `json:"namespace"`
Keys string `json:"keyspace"`
As string `json:"as"`
}
var proj_expr expression.Path
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
if _unmarshalled.Proj != "" {
expr, err := parser.Parse(_unmarshalled.Proj)
if err != nil {
return err
}
_proj_expr, is_path := expr.(expression.Path)
if !is_path {
return fmt.Errorf("Fetch.UnmarshalJSON: cannot resolve path expression from %s", _unmarshalled.Proj)
}
proj_expr = _proj_expr
}
this.term = algebra.NewKeyspaceTerm(_unmarshalled.Names, _unmarshalled.Keys,
proj_expr, _unmarshalled.As, nil, nil)
this.keyspace, err = datastore.GetKeyspace(_unmarshalled.Names, _unmarshalled.Keys)
return err
}
// SeekKey implement Index{} interface.
func (si *secondaryIndex) SeekKey() expression.Expressions {
if si != nil && si.partnExpr != "" {
expr, _ := parser.Parse(si.partnExpr)
return expression.Expressions{expr}
}
return nil
}
/*
Unmarshals byte array.
*/
func UnmarshalUnsetTerm(body []byte) (*algebra.UnsetTerm, error) {
var _unmarshalled struct {
Path string `json:"path"`
For json.RawMessage `json:"path_for"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return nil, err
}
path_expr, err := parser.Parse(_unmarshalled.Path)
if err != nil {
return nil, err
}
path, is_path := path_expr.(expression.Path)
if !is_path {
return nil, fmt.Errorf("UnmarshalUnsetTerm: cannot resolve path expression from %s",
_unmarshalled.Path)
}
var updateFor *algebra.UpdateFor
if len(_unmarshalled.For) > 0 {
updateFor, err = UnmarshalUpdateFor(_unmarshalled.For)
if err != nil {
return nil, err
}
}
return algebra.NewUnsetTerm(path, updateFor), nil
}
func (this *Merge) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Keys string `json:"keyspace"`
Names string `json:"namespace"`
KRef *algebra.KeyspaceRef `json:"keyspaceRef"`
Key string `json:"key"`
Update json.RawMessage `json:"update"`
Delete json.RawMessage `json:"delete"`
Insert json.RawMessage `json:"insert"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
this.keyspace, err = datastore.GetKeyspace(_unmarshalled.Names, _unmarshalled.Keys)
if err != nil {
return err
}
if _unmarshalled.Key != "" {
this.key, err = parser.Parse(_unmarshalled.Key)
if err != nil {
return err
}
}
ops := []json.RawMessage{
_unmarshalled.Update,
_unmarshalled.Delete,
_unmarshalled.Insert,
}
for i, child := range ops {
var op_type struct {
Operator string `json:"#operator"`
}
err = json.Unmarshal(child, &op_type)
if err != nil {
return err
}
switch i {
case 0:
this.update, err = MakeOperator(op_type.Operator, child)
case 1:
this.delete, err = MakeOperator(op_type.Operator, child)
case 2:
this.insert, err = MakeOperator(op_type.Operator, child)
}
return err
}
return err
}
/*
Unmarshals byte array.
*/
func UnmarshalSetTerms(body []byte) (algebra.SetTerms, error) {
var _unmarshalled []struct {
Path string `json:"path"`
Value string `json:"value"`
For json.RawMessage `json:"path_for"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return nil, err
}
terms := make(algebra.SetTerms, len(_unmarshalled))
for i, term := range _unmarshalled {
path_expr, err := parser.Parse(term.Path)
if err != nil {
return nil, err
}
path, is_path := path_expr.(expression.Path)
if !is_path {
return nil, fmt.Errorf("UnmarshalSetTerms: cannot resolve path expression from %s",
term.Path)
}
value, err := parser.Parse(term.Value)
if err != nil {
return nil, err
}
var updateFor *algebra.UpdateFor
if len(term.For) > 0 {
updateFor, err = UnmarshalUpdateFor(term.For)
if err != nil {
return nil, err
}
}
terms[i] = algebra.NewSetTerm(path, value, updateFor)
}
return terms, nil
}
// RangeKey implement Index{} interface.
func (si *secondaryIndex) RangeKey() expression.Expressions {
if si != nil && si.secExprs != nil {
exprs := make(expression.Expressions, 0, len(si.secExprs))
for _, exprS := range si.secExprs {
expr, _ := parser.Parse(exprS)
exprs = append(exprs, expr)
}
return exprs
}
return nil
}
// CompileN1QLExpression will take expressions defined in N1QL's DDL statement
// and compile them for evaluation.
func CompileN1QLExpression(expressions []string) ([]interface{}, error) {
cExprs := make([]interface{}, 0, len(expressions))
for _, expr := range expressions {
cExpr, err := qparser.Parse(expr)
if err != nil {
logging.Errorf("CompileN1QLExpression() %v: %v\n", expr, err)
return nil, err
}
cExprs = append(cExprs, cExpr)
}
return cExprs, nil
}
func (this *Order) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Terms []struct {
Expr string `json:"expr"`
Desc bool `json:"desc"`
} `json:"sort_terms"`
offsetExpr string `json:"offset"`
limitExpr string `json:"limit"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
this.terms = make(algebra.SortTerms, len(_unmarshalled.Terms))
for i, term := range _unmarshalled.Terms {
expr, err := parser.Parse(term.Expr)
if err != nil {
return err
}
this.terms[i] = algebra.NewSortTerm(expr, term.Desc)
}
if offsetExprStr := _unmarshalled.offsetExpr; offsetExprStr != "" {
offsetExpr, err := parser.Parse(offsetExprStr)
if err != nil {
return err
}
this.offset = NewOffset(offsetExpr)
}
if limitExprStr := _unmarshalled.limitExpr; limitExprStr != "" {
limitExpr, err := parser.Parse(limitExprStr)
if err != nil {
return err
}
this.limit = NewLimit(limitExpr)
}
return nil
}
func (this *Offset) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Expr string `json:"expr"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
this.expr, err = parser.Parse(_unmarshalled.Expr)
return err
}
func (this *Unset) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
UnsetTerms []struct {
Path string `json:"path"`
Expr string `json:"expr"`
} `json:"unset_terms"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
terms := make([]*algebra.UnsetTerm, len(_unmarshalled.UnsetTerms))
for i, UnsetTerm := range _unmarshalled.UnsetTerms {
path_expr, err := parser.Parse(UnsetTerm.Path)
if err != nil {
return err
}
path, is_path := path_expr.(expression.Path)
if !is_path {
return fmt.Errorf("Unset.UnmarshalJSON: cannot resolve path expression from %s", UnsetTerm.Path)
}
// is expr needed in Unset?
_, err = parser.Parse(UnsetTerm.Expr)
if err != nil {
return err
}
terms[i] = algebra.NewUnsetTerm(path, nil)
}
this.node = algebra.NewUnset(terms)
return nil
}
func (this *PrimaryScan) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Index string `json:"index"`
Names string `json:"namespace"`
Keys string `json:"keyspace"`
Using datastore.IndexType `json:"using"`
Limit string `json:"limit"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
if _unmarshalled.Limit != "" {
this.limit, err = parser.Parse(_unmarshalled.Limit)
if err != nil {
return err
}
}
this.keyspace, err = datastore.GetKeyspace(_unmarshalled.Names, _unmarshalled.Keys)
if err != nil {
return err
}
this.term = algebra.NewKeyspaceTerm(
_unmarshalled.Names, _unmarshalled.Keys,
nil, "", nil, nil)
indexer, err := this.keyspace.Indexer(_unmarshalled.Using)
if err != nil {
return err
}
index, err := indexer.IndexByName(_unmarshalled.Index)
if err != nil {
return err
}
primary, ok := index.(datastore.PrimaryIndex)
if ok {
this.index = primary
return nil
}
return fmt.Errorf("Unable to unmarshal %s as primary index.", _unmarshalled.Index)
}
func (this *Filter) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Condition string `json:"condition"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
if _unmarshalled.Condition != "" {
this.cond, err = parser.Parse(_unmarshalled.Condition)
}
return err
}
func (this *KeyScan) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Keys string `json:"keys"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
if _unmarshalled.Keys != "" {
this.keys, err = parser.Parse(_unmarshalled.Keys)
}
return err
}
func (this *InitialProject) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Terms []*struct {
Expr string `json:"expr"`
As string `json:"as"`
Star bool `json:"star"`
} `json:"result_terms"`
Distinct bool `json:"distinct"`
Raw bool `json:"raw"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
terms := make(algebra.ResultTerms, len(_unmarshalled.Terms))
for i, term_data := range _unmarshalled.Terms {
var expr expression.Expression
if term_data.Expr != "" {
expr, err = parser.Parse(term_data.Expr)
if err != nil {
return err
}
}
terms[i] = algebra.NewResultTerm(expr, term_data.Star, term_data.As)
}
projection := algebra.NewProjection(_unmarshalled.Distinct, terms)
results := projection.Terms()
project_terms := make(ProjectTerms, len(results))
for i, res := range results {
project_terms[i] = &ProjectTerm{
result: res,
}
}
this.projection = projection
this.terms = project_terms
return nil
}
func UnmarshalBinding(body []byte) (*expression.Binding, error) {
var _unmarshalled struct {
Var string `json:"variable"`
Expr string `json:"expr"`
Desc bool `json:"descend"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return nil, err
}
expr, err := parser.Parse(_unmarshalled.Expr)
if err != nil {
return nil, err
}
if _unmarshalled.Desc {
return expression.NewDescendantBinding(_unmarshalled.Var, expr), nil
} else {
return expression.NewBinding(_unmarshalled.Var, expr), nil
}
}
func (this *Order) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
Terms []struct {
Expr string `json:"expr"`
Desc bool `json:"desc"`
} `json:"sort_terms"`
}
err := json.Unmarshal(body, &_unmarshalled)
if err != nil {
return err
}
this.terms = make(algebra.SortTerms, len(_unmarshalled.Terms))
for i, term := range _unmarshalled.Terms {
expr, err := parser.Parse(term.Expr)
if err != nil {
return err
}
this.terms[i] = algebra.NewSortTerm(expr, term.Desc)
}
return nil
}
