1

Cargo.toml

@@ -6,3 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+protobuf = "2.9.0"
+serde = "*"
+serde_derive = "*"
+serde_json = "*"

src/lib.rs

@@ -12,3 +12,4 @@ mod metamgr;
 
 pub use xvalue::XValue;
 pub use metamgr::MetaMgr;
+pub use metamgr::ProtoMsg;

src/metamgr.rs

@@ -1,11 +1,22 @@
 use std::rc::Rc;
+use std::fs::File;
 use std::collections::HashMap;
+use protobuf::Message;
+use protobuf::descriptor::FieldDescriptorProto_Type;
+
+pub trait ProtoMsg {
+    fn get_proto(&self) -> &dyn Message;
+    fn init1(&self) {}
+    fn init2(&self) {}
+    fn init3(&self) {}
+}
 
 struct MetaClass<T> {
     file_name: String,
     idx: i32,
     prim_key: String,
     sec_key: String,
+    dummy: T,
     wrap_list: Vec<Rc<T>>,
     wrap_id_hash: HashMap<i64, Rc<T>>,
     wrap_name_hash: HashMap<String, Rc<T>>
@@ -15,7 +26,22 @@ pub struct MetaMgr<T> {
     meta_classes: Vec<MetaClass::<T>>,
 }
 
-impl<T> MetaMgr<T> {
+fn json_to_pb(obj: &serde_json::Map<String, serde_json::Value>, pb: &dyn protobuf::Message) {
+    let desc = pb.descriptor();
+    for field in desc.fields() {
+        let field_desc = field.proto();
+        match obj.get(field.name()) {
+            Some(v) => {
+
+            }
+            None => {
+
+            }
+        }
+    }
+}
+
+impl<T: Clone + ProtoMsg> MetaMgr<T> {
 
     pub fn new() -> Self {
         return MetaMgr::<T>{
@@ -31,6 +57,38 @@ impl<T> MetaMgr<T> {
 
     }
 
+    pub fn load(&mut self) {
+        for meta in &mut self.meta_classes {
+            match File::open(&meta.file_name) {
+                Ok(f) => {
+                    match serde_json::from_reader(f) {
+                        Ok(data) => {
+                            match (data) {
+                                serde_json::Value::Array(arr) =>{
+
+                                },
+                                serde_json::Value::Object(obj) =>{
+                                    let msg = Rc::new(meta.dummy.clone());
+                                    json_to_pb(&obj, msg.get_proto());
+                                    meta.wrap_list.push(msg);
+                                },
+                                _ => {
+
+                                }
+                            }
+                        }
+                        Err(e) => {
+
+                        }
+                    }
+                }
+                Err(e) => {
+
+                }
+            }
+        }
+    }
+
     pub fn get_metalist(&mut self, idx: i32) -> Option<&Vec::<Rc::<T>>> {
         if idx >= 0 && idx as usize <= self.meta_classes.len() {
             return Some(&self.meta_classes[idx as usize].wrap_list);
@@ -47,7 +105,7 @@ impl<T> MetaMgr<T> {
     }
 
     pub fn internal_get_byid(&mut self, idx: usize, id: i64) -> Option<&Rc<T>> {
-        if idx <= self.meta_classes.len() {
+        if idx < self.meta_classes.len() {
             match self.meta_classes[idx].wrap_id_hash.get(&id) {
                 Some(v) => {
                     return Some(v);
@@ -61,7 +119,7 @@ impl<T> MetaMgr<T> {
     }
 
     pub fn internal_get_byname(&mut self, idx: usize, name: String) -> Option<&Rc<T>> {
-        if idx <= self.meta_classes.len() {
+        if idx < self.meta_classes.len() {
             match self.meta_classes[idx].wrap_name_hash.get(&name) {
                 Some(v) => {
                     return Some(v);