func (c *callImpl) callDischargeMapMethod(methodName string) map[string]security.Discharge {
env, freeFunc := jutil.GetEnv()
defer freeFunc()
javaObjectMap, err := jutil.CallMapMethod(env, c.jCall, methodName, nil)
if err != nil {
log.Printf("Couldn't call Java %q method: %v", methodName, err)
return nil
}
discharges := make(map[string]security.Discharge)
for jKey, jValue := range javaObjectMap {
key := jutil.GoString(env, jKey)
discharge, err := GoDischarge(env, jValue)
if err != nil {
log.Printf("Couldn't convert Java Discharge to Go Discharge: %v", err)
return nil
}
discharges[key] = discharge
}
return discharges
}
//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))
}