// TODO(sjr): support cachedTime in Java
func (s *blessingStore) Discharge(caveat security.Caveat, impetus security.DischargeImpetus) (security.Discharge, time.Time) {
env, freeFunc := jutil.GetEnv()
defer freeFunc()
jCaveat, err := JavaCaveat(env, caveat)
if err != nil {
log.Printf("Couldn't get Java caveat: %v", err)
return security.Discharge{}, time.Time{}
}
jImpetus, err := jutil.JVomCopy(env, impetus, jDischargeImpetusClass)
if err != nil {
log.Printf("Couldn't get Java DischargeImpetus: %v", err)
return security.Discharge{}, time.Time{}
}
jDischarge, err := jutil.CallObjectMethod(env, s.jBlessingStore, "discharge", []jutil.Sign{caveatSign, dischargeImpetusSign}, dischargeSign, jCaveat, jImpetus)
if err != nil {
log.Printf("Couldn't call Java discharge method: %v", err)
return security.Discharge{}, time.Time{}
}
discharge, err := GoDischarge(env, jDischarge)
if err != nil {
log.Printf("Couldn't convert Java discharge to Go: %v", err)
return security.Discharge{}, time.Time{}
}
return discharge, time.Time{}
}
//export Java_io_v_impl_google_lib_discovery_DiscoveryImpl_nativeAdvertise
func Java_io_v_impl_google_lib_discovery_DiscoveryImpl_nativeAdvertise(jenv *C.JNIEnv, _ C.jobject, goRef C.jlong, jCtx C.jobject, jAdObj C.jobject, jVisibilityObj C.jobject, jCbObj C.jobject) {
env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
ctx, _, err := jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jCtx))))
if err != nil {
jutil.JThrowV(env, err)
return
}
d := *(*discovery.T)(jutil.GoRefValue(jutil.Ref(goRef)))
jAd := jutil.Object(uintptr(unsafe.Pointer(jAdObj)))
jVisibility := jutil.Object(uintptr(unsafe.Pointer(jVisibilityObj)))
var ad discovery.Advertisement
if err := jutil.GoVomCopy(env, jAd, jAdvertisementClass, &ad); err != nil {
jutil.JThrowV(env, err)
return
}
jVisibilityList, err := jutil.GoObjectList(env, jVisibility)
if err != nil {
jutil.JThrowV(env, err)
return
}
visibility := make([]security.BlessingPattern, len(jVisibilityList))
for i, jPattern := range jVisibilityList {
if err := jutil.GoVomCopy(env, jPattern, jBlessingPatternClass, &visibility[i]); err != nil {
jutil.JThrowV(env, err)
return
}
}
done, err := d.Advertise(ctx, &ad, visibility)
if err != nil {
jutil.JThrowV(env, err)
return
}
// Copy back the advertisement id.
jId, err := jutil.JVomCopy(env, &ad.Id, jAdIdClass)
if err != nil {
jutil.JThrowV(env, err)
return
}
if err = jutil.CallVoidMethod(env, jAd, "setId", []jutil.Sign{adIdSign}, jId); err != nil {
jutil.JThrowV(env, err)
return
}
jCb := jutil.Object(uintptr(unsafe.Pointer(jCbObj)))
jutil.DoAsyncCall(env, jCb, func() (jutil.Object, error) {
<-done
return jutil.NullObject, nil
})
}
// javaUpdate converts a Go update instance into a Java update instance.
func javaUpdate(env jutil.Env, update discovery.Update) (jutil.Object, error) {
jAd, err := jutil.JVomCopy(env, update.Advertisement(), jAdvertisementClass)
if err != nil {
return jutil.NullObject, err
}
ref := jutil.GoNewRef(&update) // Un-refed when jUpdate is finalized.
jUpdate, err := jutil.NewObject(env, jUpdateImplClass, []jutil.Sign{jutil.LongSign, jutil.BoolSign, advertisementSign, jutil.LongSign},
int64(ref), update.IsLost(), jAd, update.Timestamp().UnixNano())
if err != nil {
jutil.GoDecRef(ref)
return jutil.NullObject, err
}
return jUpdate, nil
}
func doResolveToMountTable(n namespace.T, context *context.T, name string, options []naming.NamespaceOpt) (jutil.Object, error) {
entry, err := n.ResolveToMountTable(context, name, options...)
if err != nil {
return jutil.NullObject, err
}
env, freeFunc := jutil.GetEnv()
defer freeFunc()
jEntry, err := jutil.JVomCopy(env, entry, JMountEntryClass)
if err != nil {
return jutil.NullObject, err
}
// Must grab a global reference as we free up the env and all local references that come along
// with it.
return jutil.NewGlobalRef(env, jEntry), nil // Un-refed in DoAsyncCall
}
//export Java_io_v_impl_google_namespace_NamespaceImpl_nativeGlob
func Java_io_v_impl_google_namespace_NamespaceImpl_nativeGlob(jenv *C.JNIEnv, jNamespaceClass C.jclass, goRef C.jlong, jContext C.jobject, jPattern C.jstring, jOptions C.jobject) C.jobject {
env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
n := *(*namespace.T)(jutil.GoRefValue(jutil.Ref(goRef)))
ctx, cancel, pattern, opts, err := globArgs(env, jContext, jPattern, jOptions)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
var globChannel <-chan naming.GlobReply
var globError error
globDone := make(chan bool)
go func() {
globChannel, globError = n.Glob(ctx, pattern, opts...)
close(globDone)
}()
jChannel, err := jchannel.JavaInputChannel(env, ctx, cancel, func() (jutil.Object, error) {
// A few blocking calls below - don't call GetEnv() before they complete.
<-globDone
if globError != nil {
return jutil.NullObject, globError
}
globReply, ok := <-globChannel
if !ok {
return jutil.NullObject, verror.NewErrEndOfFile(ctx)
}
env, freeFunc := jutil.GetEnv()
defer freeFunc()
jReply, err := jutil.JVomCopy(env, globReply, jGlobReplyClass)
if err != nil {
return jutil.NullObject, err
}
// Must grab a global reference as we free up the env and all local references that come
// along with it.
return jutil.NewGlobalRef(env, jReply), nil // Un-refed by InputChannelImpl_nativeRecv
})
if err != nil {
jutil.JThrowV(env, err)
return nil
}
return C.jobject(unsafe.Pointer(jChannel))
}
func doGetPermissions(n namespace.T, context *context.T, name string, options []naming.NamespaceOpt) (jutil.Object, error) {
permissions, version, err := n.GetPermissions(context, name, options...)
if err != nil {
return jutil.NullObject, err
}
env, freeFunc := jutil.GetEnv()
defer freeFunc()
jPermissions, err := jutil.JVomCopy(env, permissions, jPermissionsClass)
if err != nil {
return jutil.NullObject, err
}
result := make(map[jutil.Object]jutil.Object)
result[jutil.JString(env, version)] = jPermissions
jResult, err := jutil.JObjectMap(env, result)
if err != nil {
return jutil.NullObject, err
}
// Must grab a global reference as we free up the env and all local references that come along
// with it.
return jutil.NewGlobalRef(env, jResult), nil // Un-refed in DoAsyncCall
}
func (s *blessingStore) CacheDischarge(discharge security.Discharge, caveat security.Caveat, impetus security.DischargeImpetus) {
env, freeFunc := jutil.GetEnv()
defer freeFunc()
jDischarge, err := JavaDischarge(env, discharge)
if err != nil {
log.Printf("Couldn't get Java discharge: %v", err)
return
}
jCaveat, err := JavaCaveat(env, caveat)
if err != nil {
log.Printf("Couldn't get Java caveat: %v", err)
return
}
jImpetus, err := jutil.JVomCopy(env, impetus, jDischargeImpetusClass)
if err != nil {
log.Printf("Couldn't get Java DischargeImpetus: %v", err)
return
}
err = jutil.CallVoidMethod(env, s.jBlessingStore, "cacheDischarge", []jutil.Sign{dischargeSign, caveatSign, dischargeImpetusSign}, jDischarge, jCaveat, jImpetus)
if err != nil {
log.Printf("Couldn't call cacheDischarge: %v", err)
}
}
// JavaWireBlessings converts the provided Go WireBlessings into Java WireBlessings.
func JavaWireBlessings(env jutil.Env, wire security.WireBlessings) (jutil.Object, error) {
return jutil.JVomCopy(env, wire, jWireBlessingsClass)
}
// JavaDischarge converts the provided Go Discharge into a Java discharge.
func JavaDischarge(env jutil.Env, discharge security.Discharge) (jutil.Object, error) {
return jutil.JVomCopy(env, discharge, jDischargeClass)
}