Refactor buildFromCache() method.

plugins/datasource-zabbix/queryProcessor.js

@@ -31,32 +31,36 @@ function (angular, _, utils) {
       this.filterHosts = function(groupFilter) {
         var groups = [];
         var hosts = [];
-        var groupList = self.cache.getGroups();
 
-        // Filter groups by regex
-        if (utils.isRegex(groupFilter)) {
-          var filterPattern = utils.buildRegex(groupFilter);
-          groups = _.filter(groupList, function (groupObj) {
-            return filterPattern.test(groupObj.name);
-          });
-        }
-        // Find hosts in selected group
-        else {
-          var finded = _.find(groupList, {'name': groupFilter});
-          if (finded) {
-            groups.push(finded);
-          } else {
-            groups = undefined;
+        return self.cache.getGroups().then(function(groupList) {
+          // Filter groups by regex
+          if (utils.isRegex(groupFilter)) {
+            var filterPattern = utils.buildRegex(groupFilter);
+            groups = _.filter(groupList, function (groupObj) {
+              return filterPattern.test(groupObj.name);
+            });
+          }
+          // Find hosts in selected group
+          else {
+            var finded = _.find(groupList, {'name': groupFilter});
+            if (finded) {
+              groups.push(finded);
+            } else {
+              groups = undefined;
+            }
           }
-        }
 
-        if (groups) {
-          var groupids = _.map(groups, 'groupid');
-          hosts = _.filter(self.cache.getHosts(), function (hostObj) {
-            return _.intersection(groupids, hostObj.groups).length;
-          });
-        }
-        return hosts;
+          if (groups) {
+            var groupids = _.map(groups, 'groupid');
+            return self.cache.getHosts().then(function(hosts) {
+              return _.filter(hosts, function (hostObj) {
+                return _.intersection(groupids, hostObj.groups).length;
+              });
+            });
+          } else {
+            return hosts;
+          }
+        });
       };
 
       this.filterApplications = function(hostFilter) {
@@ -165,107 +169,120 @@ function (angular, _, utils) {
         var hosts = [];
         var apps = [];
         var items = [];
+        var promises = [
+          this.cache.getGroups(),
+          this.cache.getHosts(),
+          this.cache.getApplications(),
+          this.cache.getItems()
+        ];
 
-        if (utils.isRegex(hostFilter)) {
+        return $q.all(promises).then(function(results) {
+          var cachedGroups = results[0];
+          var cachedHosts = results[1];
+          var cachedApps = results[2];
+          var cachedItems = results[3];
 
-          // Filter groups
-          if (utils.isRegex(groupFilter)) {
-            var groupPattern = utils.buildRegex(groupFilter);
-            groups = _.filter(this.cache.getGroups(), function (groupObj) {
-              return groupPattern.test(groupObj.name);
-            });
-          } else {
-            var findedGroup = _.find(this.cache.getGroups(), {'name': groupFilter});
-            if (findedGroup) {
-              groups.push(findedGroup);
+          if (utils.isRegex(hostFilter)) {
+
+            // Filter groups
+            if (utils.isRegex(groupFilter)) {
+              var groupPattern = utils.buildRegex(groupFilter);
+              groups = _.filter(cachedGroups, function (groupObj) {
+                return groupPattern.test(groupObj.name);
+              });
             } else {
-              groups = undefined;
+              var findedGroup = _.find(cachedGroups, {'name': groupFilter});
+              if (findedGroup) {
+                groups.push(findedGroup);
+              } else {
+                groups = undefined;
+              }
             }
-          }
-          if (groups) {
-            var groupids = _.map(groups, 'groupid');
-            hosts = _.filter(this.cache.getHosts(), function (hostObj) {
-              return _.intersection(groupids, hostObj.groups).length;
-            });
-          } else {
-            // No groups finded
-            return [];
-          }
-
-          // Filter hosts
-          var hostPattern = utils.buildRegex(hostFilter);
-          hosts = _.filter(hosts, function (hostObj) {
-            return hostPattern.test(hostObj.name);
-          });
-        } else {
-          var findedHost = _.find(this.cache.getHosts(), {'name': hostFilter});
-          if (findedHost) {
-            hosts.push(findedHost);
-          } else {
-            // No hosts finded
-            return [];
-          }
-        }
-
-        // Find items belongs to selected hosts
-        items = _.filter(this.cache.getItems(), function (itemObj) {
-          return _.contains(_.map(hosts, 'hostid'), itemObj.hostid);
-        });
-
-        if (utils.isRegex(itemFilter)) {
-
-          // Filter applications
-          if (utils.isRegex(appFilter)) {
-            var appPattern = utils.buildRegex(appFilter);
-            apps = _.filter(this.cache.getApplications(), function (appObj) {
-              return appPattern.test(appObj.name);
-            });
-          }
-          // Don't use application filter if it empty
-          else if (appFilter === "") {
-            apps = undefined;
-          }
-          else {
-            var findedApp = _.find(this.cache.getApplications(), {'name': appFilter});
-            if (findedApp) {
-              apps.push(findedApp);
+            if (groups) {
+              var groupids = _.map(groups, 'groupid');
+              hosts = _.filter(cachedHosts, function (hostObj) {
+                return _.intersection(groupids, hostObj.groups).length;
+              });
             } else {
-              // No applications finded
+              // No groups finded
+              return [];
+            }
+
+            // Filter hosts
+            var hostPattern = utils.buildRegex(hostFilter);
+            hosts = _.filter(hosts, function (hostObj) {
+              return hostPattern.test(hostObj.name);
+            });
+          } else {
+            var findedHost = _.find(cachedHosts, {'name': hostFilter});
+            if (findedHost) {
+              hosts.push(findedHost);
+            } else {
+              // No hosts finded
               return [];
             }
           }
 
-          // Find items belongs to selected applications
-          if (apps) {
-            var appids = _.flatten(_.map(apps, 'applicationids'));
-            items = _.filter(items, function (itemObj) {
-              return _.intersection(appids, itemObj.applications).length;
-            });
-          }
+          // Find items belongs to selected hosts
+          items = _.filter(cachedItems, function (itemObj) {
+            return _.contains(_.map(hosts, 'hostid'), itemObj.hostid);
+          });
 
-          if (items) {
-            var itemPattern = utils.buildRegex(itemFilter);
-            items = _.filter(items, function (itemObj) {
-              return itemPattern.test(itemObj.name);
-            });
+          if (utils.isRegex(itemFilter)) {
+
+            // Filter applications
+            if (utils.isRegex(appFilter)) {
+              var appPattern = utils.buildRegex(appFilter);
+              apps = _.filter(cachedApps, function (appObj) {
+                return appPattern.test(appObj.name);
+              });
+            }
+            // Don't use application filter if it empty
+            else if (appFilter === "") {
+              apps = undefined;
+            }
+            else {
+              var findedApp = _.find(cachedApps, {'name': appFilter});
+              if (findedApp) {
+                apps.push(findedApp);
+              } else {
+                // No applications finded
+                return [];
+              }
+            }
+
+            // Find items belongs to selected applications
+            if (apps) {
+              var appids = _.flatten(_.map(apps, 'applicationids'));
+              items = _.filter(items, function (itemObj) {
+                return _.intersection(appids, itemObj.applications).length;
+              });
+            }
+
+            if (items) {
+              var itemPattern = utils.buildRegex(itemFilter);
+              items = _.filter(items, function (itemObj) {
+                return itemPattern.test(itemObj.name);
+              });
+            } else {
+              // No items finded
+              return [];
+            }
           } else {
-            // No items finded
-            return [];
+            items = _.filter(items, {'name': itemFilter});
+            if (!items.length) {
+              // No items finded
+              return [];
+            }
           }
-        } else {
-          items = _.filter(items, {'name': itemFilter});
-          if (!items.length) {
-            // No items finded
-            return [];
-          }
-        }
 
-        // Set host as host name for each item
-        items = _.each(items, function (itemObj) {
-          itemObj.host = _.find(hosts, {'hostid': itemObj.hostid}).name;
+          // Set host as host name for each item
+          items = _.each(items, function (itemObj) {
+            itemObj.host = _.find(hosts, {'hostid': itemObj.hostid}).name;
+          });
+
+          return items;
         });
-
-        return items;
       };
 
       /**

plugins/datasource-zabbix/zabbixCache.js

@@ -54,7 +54,13 @@ function (angular, _, utils) {
     };
 
     p.getGroups = function() {
-      return this._groups;
+      var self = this;
+      if (this._groups) {
+        return this.refresh().then(function() {
+          return self._groups;
+        });
+      }
+      return $q.when(this._groups);
     };
 
     p.getHosts = function() {