func (this *SendInsert) 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 err
}
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 *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)
this.keyspace, err = datastore.GetKeyspace(_unmarshalled.Names, _unmarshalled.Keys)
return err
}
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 *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
}
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
}
func (this *InitialProject) UnmarshalJSON(body []byte) error {
var _unmarshalled struct {
_ string `json:"#operator"`
//Terms []json.RawMessage `json:"result_terms"`
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 term_data struct {
Expr string `json:"expr"`
As string `json:"as"`
Star bool `json:"star"`
}
err := json.Unmarshal(raw_term, &term_data)
if err != nil {
return err
}
*/
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 (this *Limit) 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 *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 *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)
logging.Infop("Fetch", logging.Pair{"_unmarshalled.Proj", _unmarshalled.Proj},
logging.Pair{"err", err},
logging.Pair{"expr", expr},
)
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)
this.keyspace, err = datastore.GetKeyspace(_unmarshalled.Names, _unmarshalled.Keys)
return err
}
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
}
func loadViewIndexes(v *viewIndexer) ([]*datastore.Index, error) {
b := v.keyspace
rows, err := b.cbbucket.GetDDocs()
if err != nil {
return nil, err
}
inames := make([]string, 0, len(rows.Rows))
nonUsableIndexes := make([]string, 0)
for _, row := range rows.Rows {
cdoc := row.DDoc
id := cdoc.Meta["id"].(string)
if strings.HasPrefix(id, "_design/ddl_") {
iname := strings.TrimPrefix(id, "_design/ddl_")
inames = append(inames, iname)
} else if strings.HasPrefix(id, "_design/dev_") {
// append this to the list of non-usuable indexes
iname := strings.TrimPrefix(id, "_design/dev_")
for _, name := range v.nonUsableIndexes {
if iname == name {
continue
}
}
nonUsableIndexes = append(nonUsableIndexes, iname)
} else if strings.HasPrefix(id, "_design/") {
iname := strings.TrimPrefix(id, "_design/")
for _, name := range v.nonUsableIndexes {
if iname == name {
continue
}
}
nonUsableIndexes = append(nonUsableIndexes, iname)
}
}
indexes := make([]*datastore.Index, 0, len(inames))
for _, iname := range inames {
ddname := "ddl_" + iname
jdoc, err := getDesignDoc(b, ddname)
if err != nil {
return nil, err
}
jview, ok := jdoc.Views[iname]
if !ok {
nonUsableIndexes = append(nonUsableIndexes, iname)
logging.Errorf("Missing view for index %v ", iname)
continue
}
exprlist := make([]expression.Expression, 0, len(jdoc.IndexOn))
for _, ser := range jdoc.IndexOn {
if iname == PRIMARY_INDEX {
doc := expression.NewIdentifier(b.Name())
meta := expression.NewMeta(doc)
mdid := expression.NewField(meta, expression.NewFieldName("id"))
exprlist = append(exprlist, mdid)
} else {
expr, err := parser.Parse(ser)
if err != nil {
nonUsableIndexes = append(nonUsableIndexes, iname)
logging.Errorf("Cannot unmarshal expression for index %v", iname)
continue
}
exprlist = append(exprlist, expr)
}
}
if len(exprlist) != len(jdoc.IndexOn) {
continue
}
ddoc := designdoc{
name: ddname,
viewname: iname,
mapfn: jview.Map,
reducefn: jview.Reduce,
}
if ddoc.checksum() != jdoc.IndexChecksum {
nonUsableIndexes = append(nonUsableIndexes, iname)
logging.Errorf("Warning - checksum failed on index %v", iname)
continue
}
var index datastore.Index
logging.Infof("Found index name %v keyspace %v", iname, b.Name())
if iname == PRIMARY_INDEX {
index = &viewIndex{
name: iname,
keyspace: b,
view: v,
using: datastore.VIEW,
ddoc: &ddoc,
on: exprlist,
}
indexes = append(indexes, &index)
} else {
index = &viewIndex{
name: iname,
keyspace: b,
view: v,
using: datastore.VIEW,
ddoc: &ddoc,
on: exprlist,
}
indexes = append(indexes, &index)
}
}
v.nonUsableIndexes = nonUsableIndexes
if len(indexes) == 0 {
return nil, nil
}
return indexes, nil
}