func toQuadValue(v value) quad.Value {
if v == nil {
return nil
}
switch d := v.(type) {
case string:
return quad.Raw(d) // compatibility
case int64:
return quad.Int(d)
case float64:
return quad.Float(d)
case bool:
return quad.Bool(d)
case time.Time:
return quad.Time(d)
case bson.M: // TODO(dennwc): use raw document instead?
so, ok := d["val"]
if !ok {
glog.Errorf("Error: Empty value in map: %v", v)
return nil
}
s := so.(string)
if len(d) == 1 {
return quad.String(s)
}
if o, ok := d["iri"]; ok && o.(bool) {
return quad.IRI(s)
} else if o, ok := d["bnode"]; ok && o.(bool) {
return quad.BNode(s)
} else if o, ok := d["lang"]; ok && o.(string) != "" {
return quad.LangString{
Value: quad.String(s),
Lang: o.(string),
}
} else if o, ok := d["type"]; ok && o.(string) != "" {
return quad.TypedString{
Value: quad.String(s),
Type: quad.IRI(o.(string)),
}
}
return quad.String(s)
case []byte:
var p proto.Value
if err := p.Unmarshal(d); err != nil {
glog.Errorf("Error: Couldn't decode value: %v", err)
return nil
}
return p.ToNative()
default:
panic(fmt.Errorf("unsupported type: %T", v))
}
}
func (qs *store) valueAt(i int) quad.Value {
if !qs.parse {
return quad.Raw(qs.data[i])
}
iv, err := strconv.Atoi(qs.data[i])
if err == nil {
return quad.Int(iv)
}
return quad.String(qs.data[i])
}
// ToNative converts protobuf Value to quad.Value.
func (m *Value) ToNative() (qv quad.Value) {
if m == nil {
return nil
}
switch v := m.Value.(type) {
case *Value_Raw:
return quad.Raw(v.Raw)
case *Value_Str:
return quad.String(v.Str)
case *Value_Iri:
return quad.IRI(v.Iri)
case *Value_Bnode:
return quad.BNode(v.Bnode)
case *Value_TypedStr:
return quad.TypedString{
Value: quad.String(v.TypedStr.Value),
Type: quad.IRI(v.TypedStr.Type),
}
case *Value_LangStr:
return quad.LangString{
Value: quad.String(v.LangStr.Value),
Lang: v.LangStr.Lang,
}
case *Value_Int:
return quad.Int(v.Int)
case *Value_Float_:
return quad.Float(v.Float_)
case *Value_Boolean:
return quad.Bool(v.Boolean)
case *Value_Time:
var t time.Time
if v.Time == nil {
t = time.Unix(0, 0).UTC()
} else {
t = time.Unix(v.Time.Seconds, int64(v.Time.Nanos)).UTC()
}
return quad.Time(t)
default:
panic(fmt.Errorf("unsupported type: %T", m.Value))
}
}
func TestCompareTypedValues(t testing.TB, gen DatabaseFunc, conf *Config) {
qs, opts, closer := gen(t)
defer closer()
w := MakeWriter(t, qs, opts)
t1 := tzero
t2 := t1.Add(time.Hour)
t3 := t2.Add(time.Hour * 48)
t4 := t1.Add(time.Hour * 24 * 365)
err := w.AddQuadSet([]quad.Quad{
{quad.BNode("alice"), quad.BNode("bob"), quad.BNode("charlie"), quad.BNode("dani")},
{quad.IRI("alice"), quad.IRI("bob"), quad.IRI("charlie"), quad.IRI("dani")},
{quad.String("alice"), quad.String("bob"), quad.String("charlie"), quad.String("dani")},
{quad.Int(100), quad.Int(112), quad.Int(110), quad.Int(20)},
{quad.Time(t1), quad.Time(t2), quad.Time(t3), quad.Time(t4)},
})
require.Nil(t, err)
for _, c := range casesCompare {
it := iterator.NewComparison(qs.NodesAllIterator(), c.op, c.val, qs)
ExpectIteratedValues(t, qs, it, c.expect)
}
for _, c := range casesCompare {
it := iterator.NewComparison(qs.NodesAllIterator(), c.op, c.val, qs)
nit, ok := qs.OptimizeIterator(it)
require.Equal(t, conf.OptimizesComparison, ok)
if conf.OptimizesComparison {
require.NotEqual(t, it, nit)
} else {
require.Equal(t, it, nit)
}
ExpectIteratedValues(t, qs, nit, c.expect)
}
}
func (qs *store) NameOf(v graph.Value) quad.Value {
switch v.(type) {
case Int64Node:
i := int(v.(Int64Node))
if i < 0 || i >= len(qs.data) {
return nil
}
return qs.valueAt(i)
case stringNode:
if qs.parse {
return quad.String(v.(stringNode))
}
return quad.Raw(v.(stringNode))
default:
return nil
}
}
func TestZeroRune(t *testing.T) {
qs, opts, closer := makePostgres(t)
defer closer()
w := graphtest.MakeWriter(t, qs, opts)
obj := quad.String("AB\u0000CD")
if !utf8.ValidString(string(obj)) {
t.Fatal("invalid utf8")
}
err := w.AddQuad(quad.Quad{
Subject: quad.IRI("bob"),
Predicate: quad.IRI("pred"),
Object: obj,
})
require.Nil(t, err)
require.Equal(t, obj, qs.NameOf(qs.ValueOf(quad.Raw(obj.String()))))
}
func toQuadValue(t gojsonld.Term) quad.Value {
if t == nil {
return nil
}
switch v := t.(type) {
case *gojsonld.Resource:
return quad.IRI(v.URI)
case *gojsonld.Literal:
val := quad.String(v.Value)
if v.Language != "" {
return quad.LangString{Value: val, Lang: v.Language}
} else if v.Datatype != nil {
return quad.TypedString{Value: val, Type: toQuadValue(v.Datatype).(quad.IRI)}
}
return val
case *gojsonld.BlankNode:
return quad.BNode(v.ID)
default:
panic(fmt.Errorf("unknown term type: %T", t))
}
}
func unEscape(r []rune, spec int, isQuoted, isEscaped bool) quad.Value {
raw := r
var sp []rune
if spec > 0 {
r, sp = r[:spec], r[spec:]
isQuoted = true
}
if isQuoted {
r = r[1 : len(r)-1]
} else {
if len(r) >= 2 && r[0] == '<' && r[len(r)-1] == '>' {
return quad.IRI(r[1 : len(r)-1])
}
if len(r) >= 2 && r[0] == '_' && r[1] == ':' {
return quad.BNode(string(r[2:]))
}
}
var val string
if isEscaped {
buf := bytes.NewBuffer(make([]byte, 0, len(r)))
for i := 0; i < len(r); {
switch r[i] {
case '\\':
i++
var c byte
switch r[i] {
case 't':
c = '\t'
case 'b':
c = '\b'
case 'n':
c = '\n'
case 'r':
c = '\r'
case 'f':
c = '\f'
case '"':
c = '"'
case '\'':
c = '\''
case '\\':
c = '\\'
case 'u':
rc, err := strconv.ParseInt(string(r[i+1:i+5]), 16, 32)
if err != nil {
panic(fmt.Errorf("internal parser error: %v", err))
}
buf.WriteRune(rune(rc))
i += 5
continue
case 'U':
rc, err := strconv.ParseInt(string(r[i+1:i+9]), 16, 32)
if err != nil {
panic(fmt.Errorf("internal parser error: %v", err))
}
buf.WriteRune(rune(rc))
i += 9
continue
}
buf.WriteByte(c)
default:
buf.WriteRune(r[i])
}
i++
}
val = buf.String()
} else {
val = string(r)
}
if len(sp) == 0 {
if isQuoted {
return quad.String(val)
}
return quad.Raw(val)
}
if sp[0] == '@' {
return quad.LangString{
Value: quad.String(val),
Lang: string(sp[1:]),
}
} else if len(sp) >= 4 && sp[0] == '^' && sp[1] == '^' && sp[2] == '<' && sp[len(sp)-1] == '>' {
v := quad.TypedString{
Value: quad.String(val),
Type: quad.IRI(sp[3 : len(sp)-1]),
}
if AutoConvertTypedString {
nv, err := v.ToNative()
if err == nil {
return nv
}
}
return v
}
return quad.Raw(raw)
}
func (qs *QuadStore) NameOf(v graph.Value) quad.Value {
if v == nil {
glog.V(2).Info("NameOf was nil")
return nil
}
hash := v.(NodeHash)
if !hash.Valid() {
glog.V(2).Info("NameOf was nil")
return nil
}
if val, ok := qs.ids.Get(hash.String()); ok {
return val.(quad.Value)
}
query := `SELECT
value,
value_string,
datatype,
language,
iri,
bnode,
value_int,
value_bool,
value_float,
value_time
FROM nodes WHERE hash = $1 LIMIT 1;`
c := qs.db.QueryRow(query, hash.toSQL())
var (
data []byte
str sql.NullString
typ sql.NullString
lang sql.NullString
iri sql.NullBool
bnode sql.NullBool
vint sql.NullInt64
vbool sql.NullBool
vfloat sql.NullFloat64
vtime pq.NullTime
)
if err := c.Scan(
&data,
&str,
&typ,
&lang,
&iri,
&bnode,
&vint,
&vbool,
&vfloat,
&vtime,
); err != nil {
glog.Errorf("Couldn't execute value lookup: %v", err)
return nil
}
var val quad.Value
if str.Valid {
if iri.Bool {
val = quad.IRI(str.String)
} else if bnode.Bool {
val = quad.BNode(str.String)
} else if lang.Valid {
val = quad.LangString{
Value: quad.String(unescapeNullByte(str.String)),
Lang: lang.String,
}
} else if typ.Valid {
val = quad.TypedString{
Value: quad.String(unescapeNullByte(str.String)),
Type: quad.IRI(typ.String),
}
} else {
val = quad.String(unescapeNullByte(str.String))
}
} else if vint.Valid {
val = quad.Int(vint.Int64)
} else if vbool.Valid {
val = quad.Bool(vbool.Bool)
} else if vfloat.Valid {
val = quad.Float(vfloat.Float64)
} else if vtime.Valid {
val = quad.Time(vtime.Time)
} else {
qv, err := proto.UnmarshalValue(data)
if err != nil {
glog.Errorf("Couldn't unmarshal value: %v", err)
return nil
}
val = qv
}
if val != nil {
qs.ids.Put(hash.String(), val)
}
return val
}
package pquads_test
import (
"bytes"
"github.com/google/cayley/quad"
"github.com/google/cayley/quad/pquads"
"io"
"reflect"
"testing"
)
var testData = []quad.Quad{
{quad.BNode("one"), quad.IRI("name"), quad.String("One"), quad.IRI("graph")},
{quad.BNode("one"), quad.IRI("rank"), quad.Int(101), nil},
{quad.BNode("one"), quad.IRI("val"), quad.TypedString{Value: "123", Type: "int"}, nil},
}
func TestPQuads(t *testing.T) {
buf := bytes.NewBuffer(nil)
w := pquads.NewWriter(buf)
for _, q := range testData {
if err := w.WriteQuad(q); err != nil {
t.Fatal(err)
}
}
var got []quad.Quad
r := pquads.NewReader(buf)
for {
q, err := r.ReadQuad()
if err == io.EOF {
break
return otto.NullValue()
}
return outObj(call, cmpOperator{op: op, val: qv})
}
}
type cmpOperator struct {
op iterator.Operator
val quad.Value
}
var defaultEnv = map[string]func(call otto.FunctionCall) otto.Value{
"iri": oneStringType(func(s string) quad.Value { return quad.IRI(s) }),
"bnode": oneStringType(func(s string) quad.Value { return quad.BNode(s) }),
"raw": oneStringType(func(s string) quad.Value { return quad.Raw(s) }),
"str": oneStringType(func(s string) quad.Value { return quad.String(s) }),
"lang": twoStringType(func(s, lang string) quad.Value {
return quad.LangString{Value: quad.String(s), Lang: lang}
}),
"typed": twoStringType(func(s, typ string) quad.Value {
return quad.TypedString{Value: quad.String(s), Type: quad.IRI(typ)}
}),
"lt": cmpOpType(iterator.CompareLT),
"lte": cmpOpType(iterator.CompareLTE),
"gt": cmpOpType(iterator.CompareGT),
"gte": cmpOpType(iterator.CompareGTE),
}
func newWorker(qs graph.QuadStore) *worker {
message: "parse simple triples",
input: "this is valid .",
expect: quad.Quad{
Subject: quad.Raw("this"),
Predicate: quad.Raw("is"),
Object: quad.Raw("valid"),
Label: nil,
},
},
{
message: "parse quoted triples",
input: `this is "valid too" .`,
expect: quad.Quad{
Subject: quad.Raw("this"),
Predicate: quad.Raw("is"),
Object: quad.String("valid too"),
Label: nil,
},
},
{
message: "parse escaped quoted triples",
input: `he said "\"That's all folks\"" .`,
expect: quad.Quad{
Subject: quad.Raw("he"),
Predicate: quad.Raw("said"),
Object: quad.String(`"That's all folks"`),
Label: nil,
},
},
{
message: "parse an example real triple",
type test struct {
message string
path *Path
expect []quad.Value
tag string
}
// Define morphisms without a QuadStore
const (
vFollows = quad.IRI("follows")
vAre = quad.IRI("are")
vStatus = quad.IRI("status")
vPredicate = quad.IRI("predicates")
vCool = quad.String("cool_person")
vSmart = quad.String("smart_person")
vSmartGraph = quad.IRI("smart_graph")
vAlice = quad.IRI("alice")
vBob = quad.IRI("bob")
vCharlie = quad.IRI("charlie")
vDani = quad.IRI("dani")
vFred = quad.IRI("fred")
vGreg = quad.IRI("greg")
vEmily = quad.IRI("emily")
)
var (
grandfollows = StartMorphism().Out(vFollows).Out(vFollows)
)
func TestLoadTypedQuads(t testing.TB, gen DatabaseFunc, conf *Config) {
qs, opts, closer := gen(t)
defer closer()
w := MakeWriter(t, qs, opts)
values := []quad.Value{
quad.BNode("A"), quad.IRI("name"), quad.String("B"), quad.IRI("graph"),
quad.IRI("B"), quad.Raw("<type>"),
quad.TypedString{Value: "10", Type: "int"},
quad.LangString{Value: "value", Lang: "en"},
quad.Int(-123456789),
quad.Float(-12345e-6),
quad.Bool(true),
quad.Time(time.Now()),
}
err := w.AddQuadSet([]quad.Quad{
{values[0], values[1], values[2], values[3]},
{values[4], values[5], values[6], nil},
{values[4], values[5], values[7], nil},
{values[0], values[1], values[8], nil},
{values[0], values[1], values[9], nil},
{values[0], values[1], values[10], nil},
{values[0], values[1], values[11], nil},
})
require.Nil(t, err)
for _, pq := range values {
got := qs.NameOf(qs.ValueOf(pq))
if !conf.UnTyped {
if pt, ok := pq.(quad.Time); ok {
var trim int64
if conf.TimeInMcs {
trim = 1000
} else if conf.TimeInMs {
trim = 1000000
}
if trim > 0 {
tm := time.Time(pt)
seconds := tm.Unix()
nanos := int64(tm.Sub(time.Unix(seconds, 0)))
if conf.TimeRound {
nanos = (nanos/trim + ((nanos/(trim/10))%10)/5) * trim
} else {
nanos = (nanos / trim) * trim
}
pq = quad.Time(time.Unix(seconds, nanos).UTC())
}
}
if eq, ok := pq.(quad.Equaler); ok {
assert.True(t, eq.Equal(got), "Failed to roundtrip %q (%T), got %q (%T)", pq, pq, got, got)
} else {
assert.Equal(t, pq, got, "Failed to roundtrip %q (%T)", pq, pq)
if !conf.NoHashes {
assert.Equal(t, pq, qs.NameOf(qs.ValueOf(quad.Raw(pq.String()))), "Failed to exchange raw value %q (%T)", pq, pq)
}
}
} else {
assert.Equal(t, quad.StringOf(pq), quad.StringOf(got), "Failed to roundtrip raw %q (%T)", pq, pq)
}
}
require.Equal(t, int64(7), qs.Size(), "Unexpected quadstore size")
}
const lt, lte, gt, gte = iterator.CompareLT, iterator.CompareLTE, iterator.CompareGT, iterator.CompareGTE
var tzero = time.Unix(time.Now().Unix(), 0)
var casesCompare = []struct {
op iterator.Operator
val quad.Value
expect []quad.Value
}{
{lt, quad.BNode("b"), []quad.Value{
quad.BNode("alice"),
}},
{lte, quad.BNode("bob"), []quad.Value{
quad.BNode("alice"), quad.BNode("bob"),
}},
{lt, quad.String("b"), []quad.Value{
quad.String("alice"),
}},
{lte, quad.String("bob"), []quad.Value{
quad.String("alice"), quad.String("bob"),
}},
{gte, quad.String("b"), []quad.Value{
quad.String("bob"), quad.String("charlie"), quad.String("dani"),
}},
{lt, quad.IRI("b"), []quad.Value{
quad.IRI("alice"),
}},
{lte, quad.IRI("bob"), []quad.Value{
quad.IRI("alice"), quad.IRI("bob"),
}},
{lte, quad.IRI("bob"), []quad.Value{
operator: CompareGTE,
expect: []quad.Value{quad.Int(2), quad.Int(3), quad.Int(4)},
qs: simpleStore,
iterator: simpleFixedIterator,
},
{
message: "successful int64 greater than or equal comparison (mixed)",
operand: quad.Int(2),
operator: CompareGTE,
expect: []quad.Value{quad.Int(2), quad.Int(3), quad.Int(4), quad.Int(5)},
qs: mixedStore,
iterator: mixedFixedIterator,
},
{
message: "successful string less than comparison",
operand: quad.String("echo"),
operator: CompareLT,
expect: []quad.Value{quad.String("bar"), quad.String("baz")},
qs: stringStore,
iterator: stringFixedIterator,
},
{
message: "empty string less than comparison",
operand: quad.String(""),
operator: CompareLT,
expect: nil,
qs: stringStore,
iterator: stringFixedIterator,
},
{
message: "successful string greater than comparison",