Updated gql.go

gql.go

@@ -112,7 +112,7 @@ func enableCORS(w *http.ResponseWriter) {
  (*w).Header().Set("Access-Control-Allow-Methods", "*")
 }
 
-func GQLHandler(ctx * GraphContext, server * GQLThread) func(http.ResponseWriter, *http.Request) {
+func GQLHandler(ctx * Context, server * GQLThread) func(http.ResponseWriter, *http.Request) {
   gql_ctx := context.Background()
   gql_ctx = context.WithValue(gql_ctx, "graph_context", ctx)
   gql_ctx = context.WithValue(gql_ctx, "gql_server", server)
@@ -191,7 +191,7 @@ func getOperationTypeOfReq(p graphql.Params) string{
   return ""
 }
 
-func GQLWSDo(ctx * GraphContext, p graphql.Params) chan *graphql.Result {
+func GQLWSDo(ctx * Context, p graphql.Params) chan *graphql.Result {
   operation := getOperationTypeOfReq(p)
   ctx.Log.Logf("gqlws", "GQLWSDO_OPERATION: %s %+v", operation, p.RequestString)
 
@@ -203,7 +203,7 @@ func GQLWSDo(ctx * GraphContext, p graphql.Params) chan *graphql.Result {
   return sendOneResultAndClose(res)
 }
 
-func GQLWSHandler(ctx * GraphContext, server * GQLThread) func(http.ResponseWriter, *http.Request) {
+func GQLWSHandler(ctx * Context, server * GQLThread) func(http.ResponseWriter, *http.Request) {
   gql_ctx := context.Background()
   gql_ctx = context.WithValue(gql_ctx, "graph_context", ctx)
   gql_ctx = context.WithValue(gql_ctx, "gql_server", server)
@@ -230,7 +230,6 @@ func GQLWSHandler(ctx * GraphContext, server * GQLThread) func(http.ResponseWrit
       defer conn.Close()
       conn_state := "init"
       for {
-        // TODO: Make this a select between reading client data and getting updates from the event to push to clients"
         msg_raw, op, err := wsutil.ReadClientData(conn)
         ctx.Log.Logf("gqlws_hb", "MSG: %s\nOP: 0x%02x\nERR: %+v\n", string(msg_raw), op, err)
         msg := GQLWSMsg{}
@@ -329,112 +328,79 @@ func GQLWSHandler(ctx * GraphContext, server * GQLThread) func(http.ResponseWrit
   }
 }
 
-type TypeList []graphql.Type
-type ObjTypeMap map[reflect.Type]*graphql.Object
-type FieldMap map[string]*graphql.Field
-
 type GQLThread struct {
-  BaseThread
+  SimpleThread
   http_server *http.Server
   http_done *sync.WaitGroup
+  Listen string
 }
 
-type GQLThreadInfo struct {
+func (thread * GQLThread) Type() NodeType {
-  ThreadInfo `json:"-"`
+  return NodeType("gql_thread")
-  Start bool `json:"start"`
-  StartState string `json:"start_state"`
-  RestoreState string `json:"restore_state"`
 }
 
-func NewGQLThreadInfo(start bool, start_state string, restore_state string) GQLThreadInfo {
+func (thread * GQLThread) Serialize() ([]byte, error) {
-  info := GQLThreadInfo{
+  thread_json := NewGQLThreadJSON(thread)
-    Start: start,
+  return json.MarshalIndent(&thread_json, "", "  ")
-    StartState: start_state,
-    RestoreState: restore_state,
-  }
-  return info
 }
 
-type GQLThreadStateJSON struct {
+type GQLThreadJSON struct {
-  BaseThreadStateJSON
+  SimpleThreadJSON
   Listen string `json:"listen"`
 }
 
-type GQLThreadState struct {
+type GQLThreadInfo struct {
-  BaseThreadState
+  Start bool `json:"start"`
-  Listen string
+  StartAction string `json:"start_action"`
+  RestoreAction string `json:"restore_action"`
 }
 
-func (state * GQLThreadState) MarshalJSON() ([]byte, error) {
+func NewGQLThreadJSON(thread *GQLThread) GQLThreadJSON {
-  thread_state := SaveBaseThreadState(&state.BaseThreadState)
+  thread_json := NewSimpleThreadJSON(&thread.SimpleThread)
-  return json.Marshal(&GQLThreadStateJSON{
+
-    BaseThreadStateJSON: thread_state,
+  return GQLThreadJSON{
-    Listen: state.Listen,
+    SimpleThreadJSON: thread_json,
-  })
+    Listen: thread.Listen,
+  }
 }
 
-func LoadGQLThreadState(ctx * GraphContext, data []byte, loaded_nodes NodeMap) (NodeState, error){
+func LoadGQLThread(ctx *Context, id NodeID, data []byte, nodes NodeMap) (Node, error) {
-  var j GQLThreadStateJSON
+  var j GQLThreadJSON
   err := json.Unmarshal(data, &j)
   if err != nil {
     return nil, err
   }
 
-  thread_state, err := RestoreBaseThreadState(ctx, j.BaseThreadStateJSON, loaded_nodes)
+  thread := NewGQLThread(id, j.Name, j.StateName, j.Listen)
+  nodes[id] = &thread
+
+  err = RestoreSimpleThread(ctx, &thread, j.SimpleThreadJSON, nodes)
   if err != nil {
     return nil, err
   }
 
-  state := &GQLThreadState{
+  return &thread, nil
-    BaseThreadState: *thread_state,
-    Listen: j.Listen,
-  }
-
-  return state, nil
-}
-
-func LoadGQLThreadInfo(ctx * GraphContext, raw map[string]interface{}) (ThreadInfo, error) {
-  info := GQLThreadInfo{
-    Start: raw["start"].(bool),
-    StartState: raw["start_state"].(string),
-    RestoreState: raw["restore_state"].(string),
-  }
-  return &info, nil
-}
-
-func LoadGQLThread(ctx * GraphContext, id NodeID) (GraphNode, error) {
-  gql_thread := GQLThread{
-    BaseThread: RestoreBaseThread(ctx, id, gql_actions, gql_handlers),
-    http_server: nil,
-    http_done: &sync.WaitGroup{},
-  }
-
-  return &gql_thread, nil
 }
 
-func NewGQLThreadState(listen string) GQLThreadState {
+func NewGQLThread(id NodeID, name string, state_name string, listen string) GQLThread {
-  state := GQLThreadState{
+  return GQLThread{
-    BaseThreadState: NewBaseThreadState("GQL Server", "gql_thread"),
+    SimpleThread: NewSimpleThread(id, name, state_name, reflect.TypeOf((*GQLThreadInfo)(nil)), gql_actions, gql_handlers),
     Listen: listen,
   }
-  state.InfoType = reflect.TypeOf((*GQLThreadInfo)(nil))
-  return state
 }
 
 var gql_actions ThreadActions = ThreadActions{
   "wait": ThreadWait,
-  "restore": func(ctx * GraphContext, thread Thread) (string, error) {
+  "restore": func(ctx * Context, thread Thread) (string, error) {
     // Start all the threads that should be "started"
     ctx.Log.Logf("gql", "GQL_THREAD_RESTORE: %s", thread.ID())
 
-    UpdateStates(ctx, []GraphNode{thread}, func(nodes NodeMap)(error) {
+    UpdateStates(ctx, []Node{thread}, func(nodes NodeMap)(error) {
-      server_state := thread.State().(*GQLThreadState)
+      return UpdateMoreStates(ctx, NodeList(thread.Children()), nodes, func(nodes NodeMap) error {
-      return UpdateMoreStates(ctx, NodeList(server_state.Children()), nodes, func(nodes NodeMap) error {
+        for _, child := range(thread.Children()) {
-        for _, child := range(server_state.Children()) {
+          should_run := (thread.ChildInfo(child.ID())).(*GQLThreadInfo)
-          child_state := child.State().(ThreadState)
+          if should_run.Start == true && child.State() != "finished" {
-          should_run := (server_state.child_info[child.ID()]).(*GQLThreadInfo)
+            ChildGo(ctx, thread, child, should_run.RestoreAction)
-          if should_run.Start == true && child_state.State() != "finished" {
-            ChildGo(ctx, thread, child, should_run.RestoreState)
           }
         }
         return nil
@@ -443,7 +409,7 @@ var gql_actions ThreadActions = ThreadActions{
 
     return "start_server", nil
   },
-  "start": func(ctx * GraphContext, thread Thread) (string, error) {
+  "start": func(ctx * Context, thread Thread) (string, error) {
     ctx.Log.Logf("gql", "GQL_START")
     err := ThreadStart(ctx, thread)
     if err != nil {
@@ -452,7 +418,7 @@ var gql_actions ThreadActions = ThreadActions{
 
     return "start_server", nil
   },
-  "start_server": func(ctx * GraphContext, thread Thread) (string, error) {
+  "start_server": func(ctx * Context, thread Thread) (string, error) {
     server, ok := thread.(*GQLThread)
     if ok == false {
       return "", fmt.Errorf("GQL_THREAD_START: %s is not GQLThread, %+v", thread.ID(), thread.State())
@@ -471,10 +437,9 @@ var gql_actions ThreadActions = ThreadActions{
     fs := http.FileServer(http.Dir("./site"))
     mux.Handle("/site/", http.StripPrefix("/site", fs))
 
-    UseStates(ctx, []GraphNode{server}, func(states NodeStateMap)(error){
+    UseStates(ctx, []Node{server}, func(nodes NodeMap)(error){
-      server_state := states[server.ID()].(*GQLThreadState)
       server.http_server = &http.Server{
-        Addr: server_state.Listen,
+        Addr: server.Listen,
         Handler: mux,
       }
       return nil
@@ -494,30 +459,29 @@ var gql_actions ThreadActions = ThreadActions{
 }
 
 var gql_handlers ThreadHandlers = ThreadHandlers{
-  "child_added": func(ctx * GraphContext, thread Thread, signal GraphSignal) (string, error) {
+  "child_added": func(ctx * Context, thread Thread, signal GraphSignal) (string, error) {
     ctx.Log.Logf("gql", "GQL_THREAD_CHILD_ADDED: %+v", signal)
-    UpdateStates(ctx, []GraphNode{thread}, func(nodes NodeMap)(error) {
+    UpdateStates(ctx, []Node{thread}, func(nodes NodeMap)(error) {
-      server_state := thread.State().(*GQLThreadState)
+      should_run, exists := thread.ChildInfo(signal.Source()).(*GQLThreadInfo)
-      should_run, exists := server_state.child_info[signal.Source()].(*GQLThreadInfo)
       if exists == false {
         ctx.Log.Logf("gql", "GQL_THREAD_CHILD_ADDED: tried to start %s whis is not a child")
         return nil
       }
       if should_run.Start == true {
-        ChildGo(ctx, thread, server_state.Child(signal.Source()), should_run.StartState)
+        ChildGo(ctx, thread, thread.Child(signal.Source()), should_run.StartAction)
       }
       return nil
     })
     return "wait", nil
   },
-  "abort": func(ctx * GraphContext, thread Thread, signal GraphSignal) (string, error) {
+  "abort": func(ctx * Context, thread Thread, signal GraphSignal) (string, error) {
     ctx.Log.Logf("gql", "GQL_ABORT")
     server := thread.(*GQLThread)
     server.http_server.Shutdown(context.TODO())
     server.http_done.Wait()
     return "", NewThreadAbortedError(signal.Source())
   },
-  "cancel": func(ctx * GraphContext, thread Thread, signal GraphSignal) (string, error) {
+  "cancel": func(ctx * Context, thread Thread, signal GraphSignal) (string, error) {
     ctx.Log.Logf("gql", "GQL_CANCEL")
     server := thread.(*GQLThread)
     server.http_server.Shutdown(context.TODO())
@@ -526,30 +490,3 @@ var gql_handlers ThreadHandlers = ThreadHandlers{
   },
 }
 
-func NewGQLThread(ctx * GraphContext, listen string, requirements []Lockable) (*GQLThread, error) {
-  state := NewGQLThreadState(listen)
-  base_thread, err := NewBaseThread(ctx, gql_actions, gql_handlers, &state)
-  if err != nil {
-    return nil, err
-  }
-
-  thread := &GQLThread {
-    BaseThread: base_thread,
-    http_server: nil,
-    http_done: &sync.WaitGroup{},
-  }
-
-  if len(requirements) > 0 {
-    req_nodes := make([]GraphNode, len(requirements))
-    for i, req := range(requirements) {
-      req_nodes[i] = req
-    }
-    err = UpdateStates(ctx, req_nodes, func(nodes NodeMap) error {
-      return LinkLockables(ctx, thread, requirements, nodes)
-    })
-    if err != nil {
-      return nil, err
-    }
-  }
-  return thread, nil
-}