// JavaPublicKeyFromDER converts a DER-encoded public key into a Java PublicKey object.
func JavaPublicKeyFromDER(env jutil.Env, der []byte) (jutil.Object, error) {
jPublicKey, err := jutil.CallStaticObjectMethod(env, jUtilClass, "decodePublicKey", []jutil.Sign{jutil.ArraySign(jutil.ByteSign)}, publicKeySign, der)
if err != nil {
return jutil.NullObject, err
}
return jPublicKey, nil
}
// JavaSignature converts the provided Go Signature into a Java VSignature.
func JavaSignature(env jutil.Env, sig security.Signature) (jutil.Object, error) {
encoded, err := vom.Encode(sig)
if err != nil {
return jutil.NullObject, err
}
jSignature, err := jutil.CallStaticObjectMethod(env, jUtilClass, "decodeSignature", []jutil.Sign{jutil.ByteArraySign}, signatureSign, encoded)
if err != nil {
return jutil.NullObject, err
}
return jSignature, nil
}
// JavaContextDoneReason return the Java DoneReason given the Go error returned
// by ctx.Error().
func JavaContextDoneReason(env jutil.Env, err error) (jutil.Object, error) {
var name string
switch err {
case context.Canceled:
name = "CANCELED"
case context.DeadlineExceeded:
name = "DEADLINE_EXCEEDED"
default:
return jutil.NullObject, fmt.Errorf("Unrecognized context done reason: %v", err)
}
return jutil.CallStaticObjectMethod(env, jDoneReasonClass, "valueOf", []jutil.Sign{jutil.StringSign}, doneReasonSign, name)
}
func (btProtocol) Listen(ctx *context.T, protocol, address string) (flow.Listener, error) {
env, freeFunc := jutil.GetEnv()
defer freeFunc()
jContext, err := jcontext.JavaContext(env, ctx, nil)
if err != nil {
return nil, err
}
jListener, err := jutil.CallStaticObjectMethod(env, jBluetoothClass, "listen", []jutil.Sign{contextSign, jutil.StringSign}, listenerSign, jContext, address)
if err != nil {
return nil, err
}
return newListener(env, jListener), nil
}
// JavaServerState converts the provided rpc.ServerState value into a Java
// ServerState enum.
func JavaServerState(env jutil.Env, state rpc.ServerState) (jutil.Object, error) {
var name string
switch state {
case rpc.ServerActive:
name = "SERVER_ACTIVE"
case rpc.ServerStopping:
name = "SERVER_STOPPING"
case rpc.ServerStopped:
name = "SERVER_STOPPED"
default:
return jutil.NullObject, fmt.Errorf("Unrecognized state: %d", state)
}
return jutil.CallStaticObjectMethod(env, jServerStateClass, "valueOf", []jutil.Sign{jutil.StringSign}, serverStateSign, name)
}
func (btProtocol) Dial(ctx *context.T, protocol, address string, timeout time.Duration) (flow.Conn, error) {
env, freeFunc := jutil.GetEnv()
defer freeFunc()
jContext, err := jcontext.JavaContext(env, ctx, nil)
if err != nil {
return nil, err
}
jStream, err := jutil.CallStaticObjectMethod(env, jBluetoothClass, "dial", []jutil.Sign{contextSign, jutil.StringSign, jutil.DurationSign}, streamSign, jContext, address, timeout)
if err != nil {
return nil, err
}
// Reference Java Stream; it will be de-referenced when the Go connection
// created below is garbage-collected (through the finalizer callback we
// setup just below).
jStream = jutil.NewGlobalRef(env, jStream)
return newConnection(env, jStream), nil
}
//export Java_io_v_impl_google_services_mounttable_MountTableServer_nativeWithNewServer
func Java_io_v_impl_google_services_mounttable_MountTableServer_nativeWithNewServer(jenv *C.JNIEnv, jMountTableServerClass C.jclass, jContext C.jobject, jMountTableServerParams C.jobject) C.jobject {
env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
jCtx := jutil.Object(uintptr(unsafe.Pointer(jContext)))
jParams := jutil.Object(uintptr(unsafe.Pointer(jMountTableServerParams)))
// Read and translate all of the server params.
mountName, err := jutil.CallStringMethod(env, jParams, "getName", nil)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
rootDir, err := jutil.CallStringMethod(env, jParams, "getStorageRootDir", nil)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
permsJMap, err := jutil.CallMapMethod(env, jParams, "getPermissions", nil)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
permsMap := make(map[string]access.Permissions)
for jPath, jPerms := range permsJMap {
path := jutil.GoString(env, jPath)
perms, err := jaccess.GoPermissions(env, jPerms)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
permsMap[path] = perms
}
// Write JSON-encoded permissions to a file.
jsonPerms, err := json.Marshal(permsMap)
if err != nil {
jutil.JThrowV(env, fmt.Errorf("Couldn't JSON-encode path-permissions: %v", err))
return nil
}
permsFile, err := ioutil.TempFile(rootDir, "jni_permissions")
if err != nil {
jutil.JThrowV(env, fmt.Errorf("Couldn't create permissions file: %v", err))
return nil
}
w := bufio.NewWriter(permsFile)
if _, err := w.Write(jsonPerms); err != nil {
jutil.JThrowV(env, fmt.Errorf("Couldn't write to permissions file: %v", err))
return nil
}
if err := w.Flush(); err != nil {
jutil.JThrowV(env, fmt.Errorf("Couldn't flush to permissions file: %v", err))
}
statsPrefix, err := jutil.CallStringMethod(env, jParams, "getStatsPrefix", nil)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
// Start the mounttable server.
ctx, cancel, err := jcontext.GoContext(env, jCtx)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
d, err := mounttablelib.NewMountTableDispatcher(ctx, permsFile.Name(), rootDir, statsPrefix)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
newCtx, s, err := v23.WithNewDispatchingServer(ctx, mountName, d, options.ServesMountTable(true))
if err != nil {
jutil.JThrowV(env, err)
return nil
}
jNewCtx, err := jcontext.JavaContext(env, newCtx, cancel)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
jServer, err := jrpc.JavaServer(env, s)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
// Attach a server to the new context.
jServerAttCtx, err := jutil.CallStaticObjectMethod(env, jVRuntimeImplClass, "withServer", []jutil.Sign{contextSign, serverSign}, contextSign, jNewCtx, jServer)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
return C.jobject(unsafe.Pointer(jServerAttCtx))
}
//export Java_io_v_impl_google_services_syncbase_SyncbaseServer_nativeWithNewServer
func Java_io_v_impl_google_services_syncbase_SyncbaseServer_nativeWithNewServer(jenv *C.JNIEnv, jSyncbaseServerClass C.jclass, jContext C.jobject, jSyncbaseServerParams C.jobject) C.jobject {
env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
jCtx := jutil.Object(uintptr(unsafe.Pointer(jContext)))
jParams := jutil.Object(uintptr(unsafe.Pointer(jSyncbaseServerParams)))
// Read and translate all of the server params.
jPerms, err := jutil.CallObjectMethod(env, jParams, "getPermissions", nil, permissionsSign)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
perms, err := jaccess.GoPermissions(env, jPerms)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
name, err := jutil.CallStringMethod(env, jParams, "getName", nil)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
rootDir, err := jutil.CallStringMethod(env, jParams, "getStorageRootDir", nil)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
if rootDir == "" {
rootDir = filepath.Join(os.TempDir(), "syncbaseserver")
if err := os.Mkdir(rootDir, 0755); err != nil && !os.IsExist(err) {
jutil.JThrowV(env, err)
return nil
}
}
jEngine, err := jutil.CallObjectMethod(env, jParams, "getStorageEngine", nil, storageEngineSign)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
engine, err := GoStorageEngine(env, jEngine)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
ctx, cancel, err := jcontext.GoContext(env, jCtx)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
// Create the rpc server before the service so that connections are shared between
// clients in the service and the rpc server. (i.e. connections are shared if the
// context returned from WithNewDispatchingServer is used for client calls).
d := dispatcher.NewDispatcherWrapper()
ctx, s, err := v23.WithNewDispatchingServer(ctx, name, d, options.ChannelTimeout(vsync.NeighborConnectionTimeout))
if err != nil {
cancel()
jutil.JThrowV(env, err)
return nil
}
service, err := server.NewService(ctx, server.ServiceOptions{
Perms: perms,
RootDir: rootDir,
Engine: engine,
})
if err != nil {
cancel()
jutil.JThrowV(env, err)
return nil
}
// Set the dispatcher in the dispatcher wrapper for the server to start responding
// to incoming rpcs.
d.SetDispatcher(server.NewDispatcher(service))
if err := service.AddNames(ctx, s); err != nil {
cancel()
jutil.JThrowV(env, err)
return nil
}
jNewCtx, err := jcontext.JavaContext(env, ctx, cancel)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
jServer, err := jrpc.JavaServer(env, s)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
// Attach a server to the new context.
jServerAttCtx, err := jutil.CallStaticObjectMethod(env, jVRuntimeImplClass, "withServer", []jutil.Sign{contextSign, serverSign}, contextSign, jNewCtx, jServer)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
return C.jobject(unsafe.Pointer(jServerAttCtx))
}
//export Java_io_v_impl_google_services_groups_GroupServer_nativeWithNewServer
func Java_io_v_impl_google_services_groups_GroupServer_nativeWithNewServer(jenv *C.JNIEnv, jGroupServerClass C.jclass, jContext C.jobject, jGroupServerParams C.jobject) C.jobject {
env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
jCtx := jutil.Object(uintptr(unsafe.Pointer(jContext)))
jParams := jutil.Object(uintptr(unsafe.Pointer(jGroupServerParams)))
// Read and translate all of the server params.
name, err := jutil.CallStringMethod(env, jParams, "getName", nil)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
rootDir, err := jutil.CallStringMethod(env, jParams, "getStorageRootDir", nil)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
if rootDir == "" {
rootDir = filepath.Join(os.TempDir(), "groupserver")
if err := os.Mkdir(rootDir, 0755); err != nil && !os.IsExist(err) {
jutil.JThrowV(env, err)
return nil
}
}
jEngine, err := jutil.CallObjectMethod(env, jParams, "getStorageEngine", nil, storageEngineSign)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
engine, err := GoStorageEngine(env, jEngine)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
// Start the server.
ctx, cancel, err := jcontext.GoContext(env, jCtx)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
dispatcher, err := lib.NewGroupsDispatcher(rootDir, engine)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
newCtx, s, err := v23.WithNewDispatchingServer(ctx, name, dispatcher)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
jNewCtx, err := jcontext.JavaContext(env, newCtx, cancel)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
jServer, err := jrpc.JavaServer(env, s)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
// Attach a server to the new context.
jServerAttCtx, err := jutil.CallStaticObjectMethod(env, jVRuntimeImplClass, "withServer", []jutil.Sign{contextSign, serverSign}, contextSign, jNewCtx, jServer)
if err != nil {
jutil.JThrowV(env, err)
return nil
}
return C.jobject(unsafe.Pointer(jServerAttCtx))
}