// GoBlessingStore creates an instance of security.BlessingStore that uses the
// provided Java BlessingStore as its underlying implementation.
func GoBlessingStore(env jutil.Env, jBlessingStore jutil.Object) (security.BlessingStore, error) {
if jBlessingStore.IsNull() {
return nil, nil
}
if jutil.IsInstanceOf(env, jBlessingStore, jBlessingStoreImplClass) {
// Called with our implementation of BlessingStore, which maintains a Go reference - use it.
ref, err := jutil.JLongField(env, jBlessingStore, "nativeRef")
if err != nil {
return nil, err
}
return (*(*security.BlessingStore)(jutil.GoRefValue(jutil.Ref(ref)))), nil
}
// Reference Java BlessingStore; it will be de-referenced when the Go
// BlessingStore created below is garbage-collected (through the finalizer
// callback we setup just below).
jBlessingStore = jutil.NewGlobalRef(env, jBlessingStore)
s := &blessingStore{
jBlessingStore: jBlessingStore,
}
runtime.SetFinalizer(s, func(s *blessingStore) {
env, freeFunc := jutil.GetEnv()
defer freeFunc()
jutil.DeleteGlobalRef(env, s.jBlessingStore)
})
return s, nil
}
// GoAuthorizer converts the given Java authorizer into a Go authorizer.
func GoAuthorizer(env jutil.Env, jAuth jutil.Object) (security.Authorizer, error) {
if jAuth.IsNull() {
return nil, nil
}
if jutil.IsInstanceOf(env, jAuth, jPermissionsAuthorizerClass) {
// Called with our implementation of Authorizer, which maintains a Go reference - use it.
ref, err := jutil.JLongField(env, jAuth, "nativeRef")
if err != nil {
return nil, err
}
return *(*security.Authorizer)(jutil.GoRefValue(jutil.Ref(ref))), nil
}
// Reference Java dispatcher; it will be de-referenced when the go
// dispatcher created below is garbage-collected (through the finalizer
// callback we setup below).
jAuth = jutil.NewGlobalRef(env, jAuth)
a := &authorizer{
jAuth: jAuth,
}
runtime.SetFinalizer(a, func(a *authorizer) {
env, freeFunc := jutil.GetEnv()
defer freeFunc()
jutil.DeleteGlobalRef(env, a.jAuth)
})
return a, nil
}