Fixed new discrepancies between the etcd agency and the high level javascript communication, based on Shards in Collections in the Current state

js/server/modules/org/arangodb/sharding/agency-communication.js

@@ -39,7 +39,10 @@ exports.Communication = function() {
     storeServersInCache,
     Target,
     mapCollectionIDsToNames,
+    updateCollectionRouteForName,
+    updateDatabaseRoutes,
     difference,
+    self = this,
     _ = require("underscore");
 
   splitServerName = function(route) {
@@ -135,17 +138,17 @@ exports.Communication = function() {
     var target = addLevel(this, "target", "Target");
     addLevel(target, "dbServers", "DBServers", ["get", "set", "remove", "checkVersion"]);
     addLevel(target, "db", "Collections", ["list"]);
-    addLevelsForDBs(target.db, true);
+    //addLevelsForDBs(target.db, true);
     addLevel(target, "coordinators", "Coordinators", ["list", "set", "remove", "checkVersion"]);
     var plan = addLevel(this, "plan", "Plan");
     addLevel(plan, "dbServers", "DBServers", ["get", "checkVersion"]);
     addLevel(plan, "db", "Collections", ["list"]);
-    addLevelsForDBs(plan.db);
+    //addLevelsForDBs(plan.db);
     addLevel(plan, "coordinators", "Coordinators", ["list", "checkVersion"]);
     var current = addLevel(this, "current", "Current");
     addLevel(current, "dbServers", "DBServers", ["get", "checkVersion"]);
     addLevel(current, "db", "Collections", ["list"]);
-    addLevelsForDBs(current.db);
+    //addLevelsForDBs(current.db);
     addLevel(current, "coordinators", "Coordinators", ["list", "checkVersion"]);
     addLevel(current, "registered", "ServersRegistered", ["get", "checkVersion"]);
 
@@ -153,6 +156,7 @@ exports.Communication = function() {
     addLevel(sync, "beat", "ServerStates", ["get"]);
     addLevel(sync, "interval", "HeartbeatIntervalMs", ["get"]);
 
+    this.addLevel = addLevel;
   };
 
   agency = new AgencyWrapper(); 
@@ -162,6 +166,33 @@ exports.Communication = function() {
 // --SECTION--                                                  Helper Functions
 // -----------------------------------------------------------------------------
 
+  updateDatabaseRoutes = function(base, writeAccess) {
+    var list = self.plan.Databases().getList();
+    _.each(_.keys(base), function(k) {
+      if (k !== "route" && k !== "list") {
+        delete base[k];
+      }
+    });
+    _.each(list, function(d) {
+      agency.addLevel(base, d, d, ["get", "checkVersion"]);
+    });
+  };
+
+  updateCollectionRouteForName = function(route, db, name, writeAccess) {
+    var list = self.plan.Databases().select(db).getCollectionObjects();
+    var cId = null;
+    _.each(list, function(v, k) {
+      if (v.name === name) {
+        cId = splitServerName(k);
+      }
+    });
+    var acts = ["get"];
+    if (writeAccess) {
+      acts.push("set");
+    }
+    agency.addLevel(route, name, cId, acts);
+  };
+
 ////////////////////////////////////////////////////////////////////////////////
 /// @brief Stores database servers in cache
 ///
@@ -318,18 +349,27 @@ exports.Communication = function() {
 /// It allos to get a list of collections and to select one of them for 
 /// further information.
 ////////////////////////////////////////////////////////////////////////////////
-  var DBObject = function(route, writeAccess) {
+  var DBObject = function(route, db, writeAccess) {
     var cache;
-    var getList = function() {
+    var getRaw = function() {
       if (!cache || !route.checkVersion()) {
-        cache = _.keys(mapCollectionIDsToNames(route.get(true))).sort();
+        cache = route.get(true);
       }
       return cache;
     };
+    var getList = function() {
+      return _.keys(mapCollectionIDsToNames(
+        self.plan.Databases().select(db).getCollectionObjects()
+      )).sort();
+    };
+    this.getCollectionObjects = function() {
+      return getRaw();
+    };
     this.getCollections = function() {
       return getList();
     };
     this.collection = function(name) {
+      updateCollectionRouteForName(route, db, name, writeAccess);
       var colroute = route[name];
       if (!colroute) {
         return false;
@@ -350,11 +390,12 @@ exports.Communication = function() {
       return route.list();            
     };
     this.select = function(name) {
+      updateDatabaseRoutes(route, writeAccess);
       var subroute = route[name];
       if (!subroute) {
         return false;
       }
-      return new DBObject(subroute, writeAccess);
+      return new DBObject(subroute, name, writeAccess);
     };
   };
 

js/server/tests/sharding-agency-communication.js

@@ -101,6 +101,42 @@
         "11235": {name: "s"},
         "6512": {name: "a"},
         "123": {name: "d"}
+      },
+      current: {
+        _system: {
+          "98213": {
+            "sg1": {},
+            "sg2": {},
+            "sg3": {}
+          },
+          "87123": {
+            "sv1": {},
+            "sv2": {},
+            "sv3": {}
+          },
+          "89123": {
+            "se1": {},
+            "se2": {},
+            "se3": {}
+          }
+        },
+        a_db: {
+          "11235": {
+            "s01": {},
+            "s02": {},
+            "s03": {}
+          },
+          "6512": {
+            "s11": {},
+            "s12": {},
+            "s13": {}
+          },
+          "123": {
+            "s21": {},
+            "s22": {},
+            "s23": {}
+          }
+        }
       }
     };
     var ips = {
@@ -162,8 +198,8 @@
     dummy.current.coordinators = createResult([agencyRoutes.current, agencyRoutes.sub.coords], coordinators);
     dummy.current.registered = createResult([agencyRoutes.current, agencyRoutes.sub.registered], ips);
     dummy.current.databases = databases;
-    dummy.current.syscollections = createResult([agencyRoutes.current, agencyRoutes.sub.databases, agencyRoutes.sub.colls, "_system"], collections._system);
+    dummy.current.syscollections = createResult([agencyRoutes.current, agencyRoutes.sub.databases, agencyRoutes.sub.colls, "_system"], collections.current._system);
-    dummy.current.acollections = createResult([agencyRoutes.current, agencyRoutes.sub.databases, agencyRoutes.sub.colls, "a_db"], collections.a_db);
+    dummy.current.acollections = createResult([agencyRoutes.current, agencyRoutes.sub.databases, agencyRoutes.sub.colls, "a_db"], collections.current.a_db);
     dummy.current.vInfo = vInfo;
 
     dummy.sync = {};
@@ -240,9 +276,9 @@
           }
           break;
         default:
-          fail();
+          fail("Requested route: GET " + route);
       }
-      fail();
+      fail("Requested route: GET " + route);
     },
     list: function(route, recursive, flat) {
       var parts = route.split("/");
@@ -280,7 +316,7 @@
           }
           break;
         default:
-          fail();
+          fail("Requested route: LIST " + route);
       }
     }
   };
@@ -562,7 +598,7 @@
           ].sort();
           assertEqual(dbs.getList(), list);
         },
-
+        
         testGetCollectionListForDatabase: function() {
           var syslist = [
             "_graphs",
@@ -631,6 +667,7 @@
           assertTrue(wasCalled, "Agency has not been informed to move shard..");
           assertEqual(colV.getServerForShard(shard), target);
         }
+        
       };
     };
 
@@ -777,6 +814,7 @@
           assertEqual(colV.getServerForShard("v1"), "pavel");
           assertEqual(colV.getServerForShard("v2"), "paul");
         }
+
       };
     };
 
@@ -877,7 +915,7 @@
           ].sort();
           assertEqual(dbs.getList(), list);
         },
-
+        
         testGetCollectionListForDatabase: function() {
           var syslist = [
             "_graphs",
@@ -927,6 +965,7 @@
           assertEqual(colV.getServerForShard("v1"), "pavel");
           assertEqual(colV.getServerForShard("v2"), "paul");
         }
+        
       };
     };