func buildBindVarCondition(bvc interface{}) (name string, onAbsent, onMismatch bool, op Operator, value interface{}, err error) {
bvcinfo, ok := bvc.(map[string]interface{})
if !ok {
err = NewTabletError(FAIL, "want json object for bind var conditions")
return
}
var v interface{}
v, ok = bvcinfo["Name"]
if !ok {
err = NewTabletError(FAIL, "Name missing in BindVarConds")
return
}
name, ok = v.(string)
if !ok {
err = NewTabletError(FAIL, "want string for Name in BindVarConds")
return
}
v, ok = bvcinfo["OnAbsent"]
if !ok {
err = NewTabletError(FAIL, "OnAbsent missing in BindVarConds")
return
}
onAbsent, ok = v.(bool)
if !ok {
err = NewTabletError(FAIL, "want bool for OnAbsent")
return
}
v, ok = bvcinfo["Operator"]
if !ok {
err = NewTabletError(FAIL, "Operator missing in BindVarConds")
return
}
strop, ok := v.(string)
if !ok {
err = NewTabletError(FAIL, "want string for Operator")
return
}
op, ok = opmap[strop]
if !ok {
err = NewTabletError(FAIL, "invalid Operator %s", strop)
return
}
if op == QR_NOOP {
return
}
v, ok = bvcinfo["Value"]
if !ok {
err = NewTabletError(FAIL, "Value missing in BindVarConds")
return
}
if op >= QR_EQ && op <= QR_LE {
strvalue, ok := v.(string)
if !ok {
err = NewTabletError(FAIL, "want string: %v", v)
return
}
if strop[0] == 'U' {
value, err = strconv.ParseUint(strvalue, 0, 64)
if err != nil {
err = NewTabletError(FAIL, "want uint64: %s", strvalue)
return
}
} else if strop[0] == 'I' {
value, err = strconv.ParseInt(strvalue, 0, 64)
if err != nil {
err = NewTabletError(FAIL, "want int64: %s", strvalue)
return
}
} else if strop[0] == 'S' {
value = strvalue
} else {
panic("unexpected")
}
} else if op == QR_MATCH || op == QR_NOMATCH {
strvalue, ok := v.(string)
if !ok {
err = NewTabletError(FAIL, "want string: %v", v)
return
}
value = strvalue
} else if op == QR_IN || op == QR_NOTIN {
kr, ok := v.(map[string]interface{})
if !ok {
err = NewTabletError(FAIL, "want keyrange for Value")
return
}
var keyrange key.KeyRange
strstart, ok := kr["Start"]
if !ok {
err = NewTabletError(FAIL, "Start missing in KeyRange")
return
}
start, ok := strstart.(string)
if !ok {
err = NewTabletError(FAIL, "want string for Start")
return
}
keyrange.Start = key.KeyspaceId(start)
strend, ok := kr["End"]
if !ok {
err = NewTabletError(FAIL, "End missing in KeyRange")
return
}
end, ok := strend.(string)
if !ok {
err = NewTabletError(FAIL, "want string for End")
return
}
keyrange.End = key.KeyspaceId(end)
value = keyrange
}
v, ok = bvcinfo["OnMismatch"]
if !ok {
err = NewTabletError(FAIL, "OnMismatch missing in BindVarConds")
return
}
onMismatch, ok = v.(bool)
if !ok {
err = NewTabletError(FAIL, "want bool for OnAbsent")
return
}
return
}
