func (j *JavaToGoSet) Convert(obj *gojvm.Object) (err error) {
iter, err := obj.CallObj(j.env, false, "iterator", types.Class{types.NewName("java.util.Iterator")})
if err != nil {
return
}
return j.JavaToGoIterator.Convert(iter)
}
func RegisterNative(className string, method string, paramTypes []string, returnType string, fn interface{}) {
f := func(t string) types.Typed {
switch t {
case "void":
return types.Basic(types.VoidKind)
case "int":
return types.Basic(types.IntKind)
case "long":
return types.Basic(types.LongKind)
case "float":
return types.Basic(types.FloatKind)
case "double":
return types.Basic(types.DoubleKind)
case "boolean":
return types.Basic(types.BoolKind)
default:
return types.Class{types.NewName(t)}
}
return types.Basic(types.VoidKind)
}
var msig types.MethodSignature
for _, v := range paramTypes {
msig.Params = append(msig.Params, f(v))
}
msig.Return = f(returnType)
GetEnv().RegisterNative(className, method, msig, fn)
}
/*
returns a new *Object of the class named by 'klass' (Wrapper around NewInstance(types.NewName(...)))
*/
func (self *Environment) NewInstanceStr(klass string, params ...interface{}) (obj *Object, err error) {
class, err := self.GetClass(types.NewName(klass))
if err != nil {
return
}
return self.NewInstance(class, params...)
}
/*
returns the (potentially cached) types.Name of the class.
*/
func (self *Class) GetName(env *Environment) (name types.Name, err error) {
//log.Printf("Name(miss)")
var cstr string
cstr, _, err = self.CallString(env, false, "getName")
if err == nil {
name = types.NewName(cstr)
}
return
}
func CallStaticObj(class string, method string, retType interface{}, args ...interface{}) (*gojvm.Object, error) {
var t types.Typed
switch v := retType.(type) {
case string:
t = types.Class{types.NewName(v)}
case types.Typed:
t = v
default:
panic("Callable.callObj unknown retType type")
}
env := GetEnv()
cls, err := env.GetClass(types.NewName(class))
if err != nil {
return nil, err
}
return cls.CallObj(env, true, method, t, args...)
}
func CallStaticIntArray(class string, method string, args ...interface{}) ([]int, error) {
env := GetEnv()
cls, err := env.GetClass(types.NewName(class))
if err != nil {
return nil, err
}
return cls.CallIntArray(env, true, method, args...)
}
func GetFieldStaticBoolean(class string, fieldName string) (bool, error) {
env := GetEnv()
cls, err := env.GetClass(types.NewName(class))
if err != nil {
return false, err
}
return cls.GetBooleanField(env, true, fieldName)
}
func CallStaticDouble(class string, method string, args ...interface{}) (float64, error) {
env := GetEnv()
cls, err := env.GetClass(types.NewName(class))
if err != nil {
return 0, err
}
return cls.CallDouble(env, true, method, args...)
}
func GetFieldStaticDouble(class string, fieldName string) (float64, error) {
env := GetEnv()
cls, err := env.GetClass(types.NewName(class))
if err != nil {
return 0, err
}
return cls.GetDoubleField(env, true, fieldName)
}
func CallStaticBoolean(class string, method string, args ...interface{}) (bool, error) {
env := GetEnv()
cls, err := env.GetClass(types.NewName(class))
if err != nil {
return false, err
}
return cls.CallBoolean(env, true, method, args...)
}
func GetFieldStaticInt(class string, fieldName string) (int, error) {
env := GetEnv()
cls, err := env.GetClass(types.NewName(class))
if err != nil {
return 0, err
}
return cls.GetIntField(env, true, fieldName)
}
func CallStaticVoid(class string, method string, args ...interface{}) error {
env := GetEnv()
cls, err := env.GetClass(types.NewName(class))
if err != nil {
return err
}
return cls.CallVoid(env, true, method, args...)
}
func GetFieldStaticObj(class string, fieldName string, retType interface{}) (*gojvm.Object, error) {
env := GetEnv()
var t types.Typed
switch v := retType.(type) {
case string:
t = types.Class{types.NewName(v)}
case types.Typed:
t = v
default:
panic("Callable.callObj unknown retType type")
}
cls, err := env.GetClass(types.NewName(class))
if err != nil {
return nil, err
}
return cls.GetObjField(env, true, fieldName, t)
}
func CallStaticObjArray(class string, method string, retType interface{}, args ...interface{}) (*gojvm.Object, error) {
var t types.Typed
switch v := retType.(type) {
case string:
t = types.Array{types.Class{types.NewName(v)}}
case types.Typed:
t = v
default:
panic("Callable.callObj unknown retType type")
}
return CallStaticObj(class, method, t, args...)
}
func (c *Callable) CallObjArray(method string, retType interface{}, args ...interface{}) (*gojvm.Object, error) {
var t types.Typed
switch v := retType.(type) {
case string:
t = types.Array{types.Class{types.NewName(v)}}
case types.Typed:
t = v
default:
panic("Callable.callObj unknown retType type")
}
return c.Obj.CallObj(GetEnv(), false, method, t, args...)
}
func (c *Callable) SetFieldObj(fieldName string, retType interface{}, val interface{}) error {
var t types.Typed
switch v := retType.(type) {
case string:
t = types.Class{types.NewName(v)}
case types.Typed:
t = v
default:
panic("Callable.callObj unknown retType type")
}
return c.Obj.SetObjField(GetEnv(), false, fieldName, t, val.(CallableContainer).getCallable().Obj)
}
func (c *Callable) GetFieldObjArray(fieldName string, retType interface{}) (*gojvm.Object, error) {
var t types.Typed
switch v := retType.(type) {
case string:
t = types.Array{types.Class{types.NewName(v)}}
case types.Typed:
t = v
default:
panic("Callable.callObj unknown retType type")
}
return c.Obj.GetObjField(GetEnv(), false, fieldName, t)
}
func (self *Environment) RegisterNative(className string, method string, sig types.MethodSignature, fptr interface{}) error {
class, err := self.GetClass(types.NewName(className))
if err != nil {
return err
}
cname := C.CString(method)
defer C.free(unsafe.Pointer(cname))
csig := C.CString(sig.String())
defer C.free(unsafe.Pointer(csig))
C.envRegisterNative(self.env, class.class, cname, csig, fptr.(unsafe.Pointer))
return nil
}
/*
Returns the (potentially cached) name of the ObjectClass of the
named object.
*/
func (self *Object) Name(env *Environment) (name types.Name, err error) {
clsObj, err := self.CallObj(env, false, "getClass", types.Class{ClassClass})
if err != nil {
return
}
nameStr, _, err := clsObj.CallString(env, false, "getName")
if err != nil {
return
}
return types.NewName(nameStr), nil
/*
var c *Class
c, err = clsObj.ObjectClass(env)
if err == nil {
defer env.DeleteLocalClassRef(c)
name, err = c.GetName(env)
} else {
log.Printf("Couldn't get object class!")
}
return
*/
}
func (j *JavaToGoMap) Convert(obj *gojvm.Object) (err error) {
r_value := reflect.ValueOf(j.mapval)
if r_value.Type().Kind() != reflect.Ptr {
return errors.New("JavaToGoMap.Convert: dest not ptr")
}
r_map := reflect.Indirect(r_value)
if r_map.Type().Kind() != reflect.Map {
return errors.New("JavaToGoMap.Convert: dest ptr , does not point to map")
}
if r_map.IsNil() {
r_map.Set(reflect.MakeMap(r_map.Type()))
}
keySet, err := obj.CallObj(j.env, false, "keySet", types.Class{types.NewName("java/util/Set")})
if err != nil {
return
}
keyList, err := j.env.NewInstanceStr("java/util/ArrayList", &gojvm.CastObject{keySet, types.NewName("java/util/Collection")})
if err != nil {
return
}
len, err := size(j.env, obj)
if err != nil {
return
}
for i := 0; i < len; i++ {
keyobj, err := keyList.CallObj(j.env, false, "get", types.Class{types.JavaLangObject}, i)
if err != nil {
return err
}
valobj, err := obj.CallObj(
j.env,
false,
"get",
types.Class{types.JavaLangObject},
&gojvm.CastObject{keyobj, types.JavaLangObject},
)
if err != nil {
return err
}
r_newKey := reflect.Indirect(reflect.New(r_map.Type().Key()))
j.key.Dest(r_newKey.Addr().Interface())
r_newVal := reflect.Indirect(reflect.New(r_map.Type().Elem()))
if r_newVal.Type().Kind() == reflect.Ptr {
r_elemVal := reflect.New(r_newVal.Type().Elem())
r_newVal.Set(r_elemVal)
c := &Callable{}
reflect.Indirect(r_elemVal).FieldByName("Callable").Set(reflect.ValueOf(c))
j.value.Dest(c)
} else {
j.value.Dest(r_newVal.Addr().Interface())
}
// j.value.Dest(r_newVal.Addr().Interface())
if err = j.key.Convert(keyobj); err != nil {
return err
}
if err = j.value.Convert(valobj); err != nil {
return err
}
if err = j.key.CleanUp(); err != nil {
return err
}
if err = j.value.CleanUp(); err != nil {
return err
}
r_map.SetMapIndex(r_newKey, r_newVal)
}
return
}
// Wrapper around GetClass(types.NewName(...))
func (self *Environment) GetClassStr(klass string) (c *Class, err error) {
class := types.NewName(klass)
return self.GetClass(class)
}
func ObjectArray(objects []*gojvm.Object, name string) *gojvm.ObjectArray {
return &gojvm.ObjectArray{objects, types.NewName(name)}
}
func CastObject(obj *gojvm.Object, name string) *gojvm.CastObject {
return &gojvm.CastObject{obj, types.NewName(name)}
}