1

server/web3bcspider/services/factory.js

@@ -1,24 +1,34 @@
 const services = {};
 
-function add(clsNames, modName) {
+async function internalAdd(clsName, modName, isSingle) {
   const modClass = require('./' + modName);
-  clsNames.forEach((clsName) => {
-    services[clsName] = {
-      'clsName': clsName,
-      'modName': modName,
-      'class': modClass
-    };
-  });
+  services[clsName] = {
+    'clsName': clsName,
+    'modName': modName,
+    'class': modClass,
+    'isSingle': isSingle
+  };
+  if (modClass.staticInit) {
+    await modClass.staticInit();
+  }
+}
+
+async function add(clsName, modName) {
+  await internalAdd(clsName, modName, false);
+}
+
+async function addSingle(clsName, modName) {
+  await internalAdd(clsName, modName, true);
 }
 
 async function init() {
-  add(['BlockChain'], 'blockchain');
+  await add("BlockChain", 'blockchain');
   add(['PullBcEvent'], 'pull_bcevent');
 }
 
-function create(name, session) {
-  const module = services[name];
-  return new module['class'](session);
+function create(name, session = null) {
+  const service = services[name];
+  return new service['class'](session);
 }
 
 exports.init = init;