Code coverage report for app/mixins/wizard/addSecurityConfigs.js

Statements: 44.86% (144 / 321)      Branches: 39.9% (77 / 193)      Functions: 48.72% (38 / 78)      Lines: 44.97% (143 / 318)      Ignored: none     

All files » app/mixins/wizard/ » addSecurityConfigs.js
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'use strict';
 
;require.register("mixins/wizard/addSecurityConfigs", function (exports, require, module) {
  /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
 
  var App = require('app');
  var blueprintUtils = require('utils/blueprint');
 
  /**
   * Mixin for loading and setting secure configs
   *
   * @type {Ember.Mixin}
   */
  App.AddSecurityConfigs = Em.Mixin.create({
 
    kerberosDescriptor: {},
 
    kerberosDescriptorProperties: require('data/configs/wizards/kerberos_descriptor_properties'),
 
    /**
     * security configs, which values should be modified after APPLY CONFIGURATIONS stage
     */
    secureConfigs: [{
      name: 'zookeeper_principal_name',
      serviceName: 'ZOOKEEPER'
    }, {
      name: 'knox_principal_name',
      serviceName: 'KNOX'
    }, {
      name: 'storm_principal_name',
      serviceName: 'STORM'
    }, {
      name: 'nimbus_principal_name',
      serviceName: 'STORM'
    }],
 
    /**
     *
     * @param {object[]} items - stack descriptor json response
     * @returns {App.ServiceConfigProperty[]}
     */
    createServicesStackDescriptorConfigs: function createServicesStackDescriptorConfigs(items) {
      var self = this;
      var configs = [];
      var clusterConfigs = [];
      var kerberosDescriptor = Em.get(items, 'KerberosDescriptor.kerberos_descriptor');
      this.set('kerberosDescriptor', kerberosDescriptor);
      // generate configs for root level properties object, currently realm, keytab_dir
      clusterConfigs = clusterConfigs.concat(this.expandKerberosStackDescriptorProps(kerberosDescriptor.properties, 'Cluster', 'stackConfigs'));
      // generate configs for root level identities object, currently spnego property
      clusterConfigs = clusterConfigs.concat(this.createConfigsByIdentities(kerberosDescriptor.identities, 'Cluster'));
      kerberosDescriptor.services.forEach(function (service) {
        var serviceName = service.name;
        // generate configs for service level identity objects
        configs = configs.concat(self.createResourceConfigs(service, serviceName));
        // generate configs for service component level identity  object
        Em.getWithDefault(service, 'components', []).forEach(function (component) {
          configs = configs.concat(self.createResourceConfigs(component, serviceName));
        });
      });
      // unite cluster, service and component configs
      configs = configs.concat(clusterConfigs);
      self.processConfigReferences(kerberosDescriptor, configs);
      return configs;
    },
 
    /**
     *
     * @param {Object} resource
     * @param {String} serviceName
     * @return {Array}
     */
    createResourceConfigs: function createResourceConfigs(resource, serviceName) {
      var identityConfigs = [];
      var resourceConfigs = [];
      if (resource.identities) {
        identityConfigs = this.createConfigsByIdentities(resource.identities, serviceName);
      }
      if (resource.configurations) {
        resource.configurations.forEach(function (_configuration) {
          for (var key in _configuration) {
            resourceConfigs = resourceConfigs.concat(this.expandKerberosStackDescriptorProps(_configuration[key], serviceName, key));
          }
        }, this);
      }
      return identityConfigs.concat(resourceConfigs);
    },
 
    /**
     * Create service properties based on component identity
     *
     * @param {object[]} identities
     * @param {string} serviceName
     * @returns {App.ServiceConfigProperty[]}
     */
    createConfigsByIdentities: function createConfigsByIdentities(identities, serviceName) {
      var self = this;
      var configs = [];
      identities.forEach(function (identity) {
        var defaultObject = {
          isConfigIdentity: true,
          isOverridable: false,
          // the user should not be changing the principal name and keytab file values for identity items
          // that reference some other identity item,
          // if an identity entry has a "reference" attribute or the name attribute starts with a "/"
          isVisible: !Boolean(identity.reference || identity.name.startsWith('/')),
          isSecureConfig: true,
          serviceName: serviceName,
          name: identity.name,
          identityType: identity.principal && identity.principal.type
        };
        self.parseIdentityObject(identity).forEach(function (item) {
          configs.push(App.ServiceConfigProperty.create($.extend({}, defaultObject, item)));
        });
      });
 
      return configs;
    },
 
    /**
     * Bootstrap base object according to identity info. Generate objects will be converted to
     * App.ServiceConfigProperty model class instances.
     *
     * @param {object} identity
     * @returns {object[]}
     */
    parseIdentityObject: function parseIdentityObject(identity) {
      var result = [];
      var name = identity.name;
      var self = this;
      Em.keys(identity).without('name').forEach(function (item) {
        var configObject = {};
        var prop = identity[item];
        var itemValue = prop[{ keytab: 'file', principal: 'value' }[item]];
        var predefinedProperty;
        // skip inherited property without `configuration` and `keytab` or `file` values
        if (!prop.configuration && !itemValue) return;
        // inherited property with value should not observe value from reference
        if (name.startsWith('/') && !itemValue) {
          configObject.referenceProperty = name.substring(1) + ':' + item;
          configObject.isEditable = false;
        }
        Em.setProperties(configObject, {
          recommendedValue: itemValue,
          initialValue: itemValue,
          defaultValue: itemValue,
          value: itemValue
        });
        configObject.filename = prop.configuration ? prop.configuration.split('/')[0] : 'cluster-env';
        configObject.name = prop.configuration ? prop.configuration.split('/')[1] : name + '_' + item;
        predefinedProperty = self.get('kerberosDescriptorProperties').findProperty('name', configObject.name);
        configObject.displayName = self._getDisplayNameForConfig(configObject.name, configObject.filename);
        configObject.index = predefinedProperty && !Em.isNone(predefinedProperty.index) ? predefinedProperty.index : Infinity;
        result.push(configObject);
      });
      return result;
    },
 
    /**
     * Get new config display name basing on its name and filename
     * If config <code>fileName</code> is `cluster-env`, normalizing for its <code>name</code> is used (@see App.format.normalizeName)
     * If config is predefined in the <code>secureProperties</code> (and it's displayName isn't empty there), predefined displayName is used
     * Otherwise - config <code>name</code> is returned
     *
     * @param {string} name config name
     * @param {string} fileName config filename
     * @returns {String} new config display name
     * @method _getDisplayNameForConfig
     * @private
     */
    _getDisplayNameForConfig: function _getDisplayNameForConfig(name, fileName) {
      var predefinedConfig = App.config.get('kerberosIdentitiesMap')[App.config.configId(name, fileName)];
      return predefinedConfig && predefinedConfig.displayName ? predefinedConfig.displayName : fileName == 'cluster-env' ? App.format.normalizeName(name) : name;
    },
 
    /**
     * Wrap kerberos properties to App.ServiceConfigProperty model class instances.
     *
     * @param {object} kerberosProperties
     * @param {string} serviceName
     * @param {string} filename
     * @returns {App.ServiceConfigProperty[]}
     */
    expandKerberosStackDescriptorProps: function expandKerberosStackDescriptorProps(kerberosProperties, serviceName, filename) {
      var configs = [];
 
      for (var propertyName in kerberosProperties) {
        var predefinedProperty = this.get('kerberosDescriptorProperties').findProperty('name', propertyName);
        var value = kerberosProperties[propertyName];
        var isRequired = ['additional_realms', 'principal_suffix'].contains(propertyName) ? false : value !== "";
        var propertyObject = {
          name: propertyName,
          value: value,
          defaultValue: value,
          recommendedValue: value,
          initialValue: value,
          serviceName: serviceName,
          filename: filename,
          displayName: serviceName == "Cluster" ? App.format.normalizeName(propertyName) : propertyName,
          isOverridable: false,
          isEditable: propertyName != 'realm',
          isRequired: isRequired,
          isSecureConfig: true,
          placeholderText: predefinedProperty && !Em.isNone(predefinedProperty.index) ? predefinedProperty.placeholderText : '',
          index: predefinedProperty && !Em.isNone(predefinedProperty.index) ? predefinedProperty.index : Infinity
        };
        configs.push(App.ServiceConfigProperty.create(propertyObject));
      }
 
      return configs;
    },
 
    /**
     * Take care about configs that should observe value from referenced configs.
     * Reference is set with `referenceProperty` key.
     *
     * @param {object[]} kerberosDescriptor
     * @param {App.ServiceConfigProperty[]} configs
     */
    processConfigReferences: function processConfigReferences(kerberosDescriptor, configs) {
      var identities = kerberosDescriptor.identities;
 
      /**
       * Returns indentity object with additional attribute `referencePath`.
       * Reference path depends on how deep identity is. Each level separated by `/` sign.
       *
       * @param {object} identity
       * @param {string} [prefix=false] prefix to append e.g. 'SERVICE_NAME'
       * @returns {object} identity object
       */
      var setReferencePath = function setReferencePath(identity, prefix) {
        var name = Em.getWithDefault(identity, 'name', false);
        Eif (name) {
          if (prefix) {
            name = prefix + '/' + name;
          }
          identity.referencePath = name;
        }
        return identity;
      };
 
      // map all identities and add attribute `referencePath`
      // `referencePath` is a path to identity it can be 1-3 levels
      // 1 for "/global" identity e.g. `/spnego`
      // 2 for "/SERVICE/identity"
      // 3 for "/SERVICE/COMPONENT/identity"
      identities = identities.map(function (i) {
        return setReferencePath(i);
      }).concat(kerberosDescriptor.services.map(function (service) {
        var serviceName = Em.getWithDefault(service, 'name', false);
        var serviceIdentities = Em.getWithDefault(service, 'identities', []).map(function (i) {
          return setReferencePath(i, serviceName);
        });
        var componentIdentities = Em.getWithDefault(service || {}, 'components', []).map(function (i) {
          var componentName = Em.getWithDefault(i, 'name', false);
          return Em.getWithDefault(i, 'identities', []).map(function (componentIdentity) {
            return setReferencePath(componentIdentity, serviceName + '/' + componentName);
          });
        }).reduce(function (p, c) {
          return p.concat(c);
        }, []);
        serviceIdentities.pushObjects(componentIdentities);
        return serviceIdentities;
      }).reduce(function (p, c) {
        return p.concat(c);
      }, []));
      // clean up array
      identities = identities.compact().without(undefined);
      configs.forEach(function (item) {
        var reference = item.get('referenceProperty');
        if (!!reference) {
          // first find identity by `name`
          // if not found try to find by `referencePath`
          var identity = Em.getWithDefault(identities.findProperty('name', reference.split(':')[0]) || {}, reference.split(':')[1], false) || Em.getWithDefault(identities.findProperty('referencePath', reference.split(':')[0]) || {}, reference.split(':')[1], false);
          if (identity && !!identity.configuration) {
            item.set('observesValueFrom', identity.configuration.split('/')[1]);
          } else {
            item.set('observesValueFrom', reference.replace(':', '_'));
          }
        }
      });
    },
 
    /**
     * update the kerberos descriptor to be put on cluster resource with user customizations
     * @param kerberosDescriptor {Object}
     * @param configs {Object}
     */
    updateKerberosDescriptor: function updateKerberosDescriptor(kerberosDescriptor, configs) {
      configs.forEach(function (_config) {
        var isConfigUpdated;
        var isStackResource = true;
        isConfigUpdated = this.updateResourceIdentityConfigs(kerberosDescriptor, _config, isStackResource);
        if (!isConfigUpdated) {
          kerberosDescriptor.services.forEach(function (_service) {
            isConfigUpdated = this.updateResourceIdentityConfigs(_service, _config);
            if (!isConfigUpdated) {
              Em.getWithDefault(_service, 'components', []).forEach(function (_component) {
                isConfigUpdated = this.updateResourceIdentityConfigs(_component, _config);
              }, this);
            }
          }, this);
        }
      }, this);
    },
 
    /**
     * Updates the identity configs or configurations at a resource. A resource could be
     * 1) Stack
     * 2) Service
     * 3) Component
     * @param resource
     * @param config
     * @param isStackResource
     * @return boolean
     */
    updateResourceIdentityConfigs: function updateResourceIdentityConfigs(resource, config, isStackResource) {
      var isConfigUpdated;
      var identities = resource.identities;
      var properties = !!isStackResource ? resource.properties : resource.configurations;
      isConfigUpdated = this.updateDescriptorConfigs(properties, config);
      if (!isConfigUpdated) {
        if (identities) {
          isConfigUpdated = this.updateDescriptorIdentityConfig(identities, config);
        }
      }
      return isConfigUpdated;
    },
 
    /**
     * This function updates stack/service/component level configurations of the kerberos descriptor
     * with the values entered by the user on the rendered ui
     * @param configurations
     * @param config
     * @return boolean
     */
    updateDescriptorConfigs: function updateDescriptorConfigs(configurations, config) {
      var isConfigUpdated;
      if (!!configurations) {
        if (Array.isArray(configurations)) {
          configurations.forEach(function (_configuration) {
            for (var key in _configuration) {
              if (Object.keys(_configuration[key]).contains(config.name) && App.config.getConfigTagFromFileName(config.filename) === key) {
                _configuration[key][config.name] = config.value;
                isConfigUpdated = true;
              }
            }
          }, this);
        } else if (Object.keys(configurations).contains(config.name) && App.config.getConfigTagFromFileName(config.filename) === 'stackConfigs') {
          configurations[config.name] = config.value;
          isConfigUpdated = true;
        }
      }
      return isConfigUpdated;
    },
 
    /**
     * This function updates stack/service/component level kerberos descriptor identities (principal and keytab)
     * with the values entered by the user on the rendered ui
     * @param identities
     * @param config
     * @return boolean
     */
    updateDescriptorIdentityConfig: function updateDescriptorIdentityConfig(identities, config) {
      var isConfigUpdated = false;
      identities.forEach(function (identity) {
        var keys = Em.keys(identity).without('name');
        keys.forEach(function (item) {
          var prop = identity[item];
 
          // compare ui rendered config against identity with `configuration attribute` (Most of the identities have `configuration attribute`)
          var isIdentityWithConfig = prop.configuration && prop.configuration.split('/')[0] === App.config.getConfigTagFromFileName(config.filename) && prop.configuration.split('/')[1] === config.name;
 
          // compare ui rendered config against identity without `configuration attribute` (For example spnego principal and keytab)
          var isIdentityWithoutConfig = !prop.configuration && identity.name === config.name.split('_')[0] && item === config.name.split('_')[1];
 
          if (isIdentityWithConfig || isIdentityWithoutConfig) {
            prop[{ keytab: 'file', principal: 'value' }[item]] = config.value;
            isConfigUpdated = true;
          }
        });
      }, this);
      return isConfigUpdated;
    },
 
    /**
     * Make request for cluster descriptor configs.
     *
     * @param {string[]|null} [services=null] services to be added
     * @returns {$.ajax}
     * @method loadClusterDescriptorConfigs
     */
    loadClusterDescriptorConfigs: function loadClusterDescriptorConfigs(services) {
      var servicesParam = services ? 'additional_services=' + services.join(',') : null,
          queryParams = ['evaluate_when=true'].concat(servicesParam).compact().join('&');
 
      return App.ajax.send({
        sender: this,
        name: 'admin.kerberize.cluster_descriptor',
        data: {
          queryParams: '?' + queryParams
        }
      });
    },
 
    loadClusterDescriptorStackConfigs: function loadClusterDescriptorStackConfigs() {
      return App.ajax.send({
        sender: this,
        name: 'admin.kerberize.cluster_descriptor.stack'
      });
    },
 
    mergeDescriptorStackWithConfigs: function mergeDescriptorStackWithConfigs(descriptorStack, descriptorConfigs) {
      var result = [];
      var stackConfigs = this.createServicesStackDescriptorConfigs(descriptorStack);
      var currentConfigs = this.createServicesStackDescriptorConfigs(descriptorConfigs);
 
      stackConfigs.forEach(function (stackConfig) {
        var currentConfig = currentConfigs.filterProperty('name', stackConfig.get('name')).findProperty('filename', stackConfig.get('filename'));
        if (currentConfig) {
          currentConfigs = currentConfigs.without(currentConfig);
          result.push(currentConfig);
        } else {
          result.push(stackConfig);
        }
      });
 
      // add all properties from descriptor/COMPOSITE, that are absent in descriptor/STACK as custom properties
      currentConfigs.setEach('isUserProperty', true);
      result = result.concat(currentConfigs);
 
      return result;
    },
 
    /**
     * Prepare step configs using stack descriptor properties.
     *
     * @param {App.ServiceConfigProperty[]} configs
     * @param {App.ServiceConfigProperty[]} stackConfigs converted kerberos descriptor
     */
    setStepConfigs: function setStepConfigs(configs, stackConfigs, showAdminProperties) {
      var configProperties = this.prepareConfigProperties(configs, showAdminProperties),
          stackConfigProperties = stackConfigs ? this.prepareConfigProperties(stackConfigs, showAdminProperties) : [],
          alterProperties = ['value', 'initialValue', 'defaultValue'];
      if (this.get('wizardController.name') === 'addServiceController') {
        // config properties for installed services should be disabled on Add Service Wizard
        configProperties.forEach(function (item) {
          if (this.get('installedServiceNames').contains(item.get('serviceName')) || item.get('serviceName') == 'Cluster') {
            item.set('isEditable', false);
          } else if (stackConfigs) {
            var stackConfigProperty = stackConfigProperties.filterProperty('filename', item.get('filename')).findProperty('name', item.get('name'));
            if (stackConfigProperty) {
              alterProperties.forEach(function (alterProperty) {
                item.set(alterProperty, stackConfigProperty.get(alterProperty));
              });
            }
          }
        }, this);
        // Concat properties that are present in the stack's kerberos  descriptor but not in the cluster kerberos descriptor
        stackConfigProperties.forEach(function (_stackConfigProperty) {
          var isPropertyInClusterDescriptor = configProperties.filterProperty('filename', _stackConfigProperty.get('filename')).someProperty('name', _stackConfigProperty.get('name'));
          if (!isPropertyInClusterDescriptor) {
            if (this.get('installedServiceNames').contains(_stackConfigProperty.get('serviceName')) || _stackConfigProperty.get('serviceName') === 'Cluster') {
              _stackConfigProperty.set('isEditable', false);
            }
            configProperties.pushObject(_stackConfigProperty);
          }
        }, this);
      }
      configProperties = App.config.sortConfigs(configProperties);
      var stepConfigs = this.createServiceConfig(configProperties);
      this.get('stepConfigs').pushObjects(stepConfigs);
      return stepConfigs;
    },
 
    /**
     * Filter configs by installed services for Kerberos Wizard or by installed + selected services
     * for Add Service Wizard.
     * Set property value observer.
     * Set realm property with value from previous configuration step.
     * Set appropriate category for all configs.
     * Hide KDC related credentials properties if kerberos was manually enabled.
     *
     * @param {App.ServiceConfigProperty[]} configs
     * @returns {App.ServiceConfigProperty[]}
     */
    prepareConfigProperties: function prepareConfigProperties(configs, showAdminProperties) {
      var self = this;
      // stored configs from previous steps (Configure Kerberos or Customize Services for ASW)
      var storedServiceConfigs = this.get('wizardController.content.serviceConfigProperties');
      var installedServiceNames = ['Cluster', 'AMBARI'].concat(App.Service.find().mapProperty('serviceName'));
      var configProperties = configs.slice(0);
      var siteProperties = App.configsCollection.getAll();
      var realmValue;
      // override stored values
      App.config.mergeStoredValue(configProperties, this.get('wizardController').loadCachedStepConfigValues(this));
 
      // show admin properties in add service wizard
      if (showAdminProperties) {
        installedServiceNames = installedServiceNames.concat(this.get('selectedServiceNames'));
      }
      configProperties = configProperties.filter(function (item) {
        return installedServiceNames.contains(item.get('serviceName'));
      });
      if (this.get('wizardController.name') !== 'addServiceController') {
        realmValue = storedServiceConfigs.findProperty('name', 'realm').value;
        configProperties.findProperty('name', 'realm').set('value', realmValue);
        configProperties.findProperty('name', 'realm').set('savedValue', realmValue);
        configProperties.findProperty('name', 'realm').set('recommendedValue', realmValue);
      }
 
      configProperties.setEach('isSecureConfig', false);
      configProperties.forEach(function (property, item, allConfigs) {
        if (['spnego_keytab', 'spnego_principal'].contains(property.get('name'))) {
          property.addObserver('value', self, 'spnegoPropertiesObserver');
        }
        if (property.get('observesValueFrom') && allConfigs.someProperty('name', property.get('observesValueFrom'))) {
          var observedValue = Em.get(allConfigs.findProperty('name', property.get('observesValueFrom')), 'value');
          property.set('value', observedValue);
          property.set('recommendedValue', observedValue);
          property.set('isVisible', true);
        }
        if (property.get('serviceName') === 'Cluster') {
          property.set('category', 'Global');
        } else {
          property.set('category', property.get('serviceName'));
        }
        // All user identity except storm should be grouped under "Ambari Principals" category
        if (property.get('identityType') == 'user') property.set('category', 'Ambari Principals');
        var siteProperty = siteProperties.findProperty('name', property.get('name'));
        if (siteProperty) {
          if (siteProperty.category === property.get('category')) {
            property.set('displayName', siteProperty.displayName);
            if (siteProperty.index) {
              property.set('index', siteProperty.index);
            }
          }
          if (siteProperty.displayType) {
            property.set('displayType', siteProperty.displayType);
          }
        }
        this.tweakConfigProperty(property);
      }, this);
 
      return configProperties;
    },
 
    /**
     * Function to override kerberos descriptor's property values
     */
    tweakConfigProperty: function tweakConfigProperty(config) {
      var defaultHiveMsPort = "9083",
          hiveMSHosts,
          port,
          hiveMSHostNames,
          configValue;
      if (config.name === 'templeton.hive.properties') {
        hiveMSHosts = App.HostComponent.find().filterProperty('componentName', 'HIVE_METASTORE');
        if (hiveMSHosts.length > 1) {
          hiveMSHostNames = hiveMSHosts.mapProperty('hostName');
          port = config.value.match(/:[0-9]{2,4}/);
          port = port ? port[0].slice(1) : defaultHiveMsPort;
          for (var i = 0; i < hiveMSHostNames.length; i++) {
            hiveMSHostNames[i] = "thrift://" + hiveMSHostNames[i] + ":" + port;
          }
          configValue = config.value.replace(/thrift.+[0-9]{2,},/i, hiveMSHostNames.join('\\,') + ",");
          config.set('value', configValue);
          config.set('recommendedValue', configValue);
        }
      }
    },
 
    /**
     * Sync up values between inherited property and its reference.
     *
     * @param {App.ServiceConfigProperty} configProperty
     */
    spnegoPropertiesObserver: function spnegoPropertiesObserver(configProperty) {
      var stepConfig = this.get('stepConfigs').findProperty('name', 'KERBEROS') || this.get('stepConfigs').findProperty('name', 'ADVANCED');
 
      stepConfig.get('configs').forEach(function (config) {
        if (config.get('observesValueFrom') === configProperty.get('name')) {
          Em.run.once(this, function () {
            config.set('value', configProperty.get('value'));
            config.set('recommendedValue', configProperty.get('value'));
          });
        }
      }, this);
    },
    /**
    * Prepare all necessary data for recommendations payload.
    *
    * #mutates initialConfigValues
    * @returns {$.Deferred.promise()}
    */
    bootstrapRecommendationPayload: function bootstrapRecommendationPayload(kerberosDescriptor) {
      var dfd = $.Deferred();
      var self = this;
 
      this.getServicesConfigurations().then(function (configurations) {
        var recommendations = self.getBlueprintPayloadObject(configurations, kerberosDescriptor);
        self.set('servicesConfigurations', configurations);
        self.set('initialConfigValues', recommendations.blueprint.configurations);
        dfd.resolve(recommendations);
      });
      return dfd.promise();
    },
 
    getServicesConfigurations: function getServicesConfigurations() {
      var dfd = $.Deferred();
      var self = this;
      this.getConfigTags().then(function () {
        App.router.get('configurationController').getConfigsByTags(self.get('serviceConfigTags')).done(function (configurations) {
          dfd.resolve(configurations);
        });
      });
 
      return dfd.promise();
    },
 
    /**
     * Returns payload for recommendations request.
     * Takes services' configurations and merge them with kerberos descriptor properties.
     *
     * @param {object[]} configurations services' configurations fetched from API
     * @param {App.ServiceConfigProperty[]} kerberosDescriptor descriptor configs
     * @returns {object} payload for recommendations request
     */
    getBlueprintPayloadObject: function getBlueprintPayloadObject(configurations, kerberosDescriptor) {
      var recommendations = blueprintUtils.generateHostGroups(App.get('allHostNames'));
      var mergedConfigurations = this.mergeDescriptorToConfigurations(configurations, this.createServicesStackDescriptorConfigs(kerberosDescriptor));
      recommendations.blueprint.configurations = mergedConfigurations.reduce(function (p, c) {
        p[c.type] = {};
        p[c.type].properties = c.properties;
        return p;
      }, {});
 
      Iif (this.get('isWithinAddService')) {
        this.get('content.masterComponentHosts').filterProperty('isInstalled', false).forEach(function (item) {
          var hostGroupName = blueprintUtils.getHostGroupByFqdn(recommendations, item.hostName);
          blueprintUtils.addComponentToHostGroup(recommendations, item.component, hostGroupName);
        }, this);
      }
 
      return recommendations;
    },
 
    /**
     * Returns map with appropriate action and properties to process with.
     * Key is an action e.g. `add`, `update`, `delete` and value is  an object `fileName` -> `propertyName`: `propertyValue`.
     *
     * @param {object} recommendedConfigurations
     * @param {object[]} servicesConfigurations services' configurations fetched from API
     * @param {App.ServiceConfigProperty[]} allConfigs all current configurations stored in controller, basically kerberos descriptor
     * @returns {object}
     */
    groupRecommendationProperties: function groupRecommendationProperties(recommendedConfigurations, servicesConfigurations, allConfigs) {
      var resultMap = {
        update: {},
        add: {},
        delete: {}
      };
 
      /**
       * Adds property to associated group `add`,`delete`,`update`.
       *
       * @param {object} propertyMap <code>resultMap</code> object
       * @param {string} name property name
       * @param {string} propertyValue property value
       * @param {string} fileName property file name
       * @return {object} <code>resultMap</code>
       * @param {string} group, `add`,`delete`,`update`
       */
      var addProperty = function addProperty(propertyMap, name, propertyValue, fileName, group) {
        var ret = $.extend(true, {}, propertyMap);
        Eif (ret.hasOwnProperty(group)) {
          Eif (!ret[group].hasOwnProperty(fileName)) {
            ret[group][fileName] = {};
          }
          ret[group][fileName][name] = propertyValue;
        }
        return ret;
      };
 
      return Em.keys(recommendedConfigurations || {}).reduce(function (acc, fileName) {
        var propertyMap = acc;
        var recommendedProperties = Em.getWithDefault(recommendedConfigurations, fileName + '.properties', {});
        var recommendedAttributes = Em.getWithDefault(recommendedConfigurations, fileName + '.property_attributes', {});
        // check for properties that should be delted
        Em.keys(recommendedAttributes).forEach(function (propertyName) {
          var attribute = recommendedAttributes[propertyName];
          // delete properties which are present in kerberos descriptor
          Eif (attribute.hasOwnProperty('delete') && allConfigs.filterProperty('filename', fileName).someProperty('name', propertyName)) {
            propertyMap = addProperty(propertyMap, propertyName, '', fileName, 'delete');
          }
        });
 
        return Em.keys(recommendedProperties).reduce(function (a, propertyName) {
          var propertyValue = recommendedProperties[propertyName];
          // check if property exist in saved configurations on server
          var isExist = Em.getWithDefault(servicesConfigurations.findProperty('type', fileName) || {}, 'properties', {}).hasOwnProperty(propertyName);
          if (!isExist) {
            return addProperty(a, propertyName, propertyValue, fileName, 'add');
          }
          // when property exist check that it present in current step configs (kerberos descriptor)
          // and add it as property to `update`
          if (allConfigs.filterProperty('filename', fileName).someProperty('name', propertyName)) {
            return addProperty(a, propertyName, propertyValue, fileName, 'update');
          }
          return a;
        }, propertyMap);
      }, resultMap);
    },
 
    /**
     *
     * @method getServiceByFilename
     * @param {string}fileName
     * @returns {string}
     */
    getServiceByFilename: function getServiceByFilename(fileName) {
      // core-site properties goes to HDFS
      if (fileName === 'core-site' && App.Service.find().someProperty('serviceName', 'HDFS')) {
        return 'HDFS';
      }
      var associatedService = App.StackService.find().filter(function (service) {
        return Em.keys(service.get('configTypes')).contains(fileName);
      })[0];
      return associatedService ? associatedService.get('serviceName') : '';
    },
 
    loadServerSideConfigsRecommendations: function loadServerSideConfigsRecommendations(recommendations) {
      return App.ajax.send({
        'name': 'config.recommendations',
        'sender': this,
        'data': {
          stackVersionUrl: App.get('stackVersionURL'),
          dataToSend: {
            recommend: 'configurations',
            hosts: App.get('allHostNames'),
            services: this.get('serviceNames'),
            recommendations: recommendations
          }
        },
        'success': 'loadRecommendationsSuccess',
        'error': 'loadRecommendationsError'
      });
    },
 
    loadRecommendationsError: function loadRecommendationsError(req, ajaxOpts, error, opt) {
      var resp;
      try {
        resp = $.parseJSON(req.responseText);
      } catch (e) {}
      return App.ModalPopup.show({
        header: Em.I18n.t('common.error'),
        secondary: false,
        bodyClass: App.AjaxDefaultErrorPopupBodyView.extend({
          type: opt.type || 'GET',
          url: opt.url,
          status: req.status,
          message: resp && resp.message || req.responseText
        })
      });
    },
 
    /**
     * Callback executed when all configs specified by tags are loaded.
     * Here we handle configurations for instlled services and Kerberos.
     * Gather needed info for recommendation request such as configurations object.
     *
     * @override
     */
    getConfigTagsSuccess: function getConfigTagsSuccess(data) {
      // here we get all installed services including KERBEROS
      var serviceNames = App.Service.find().mapProperty('serviceName').concat(['KERBEROS']).uniq();
      // collect all config types for selected services
      var installedServiceSites = Array.prototype.concat.apply([], App.config.get('preDefinedServiceConfigs').filter(function (serviceConfig) {
        return serviceNames.contains(Em.get(serviceConfig, 'serviceName'));
      }).map(function (service) {
        // when service have no configs return <code>null</code> instead return config types
        if (!service.get('configTypes')) return null;
        return Object.keys(service.get('configTypes'));
      }, this).compact()).uniq(); // cleanup <code>null</code>
 
      // take all configs for selected services by config types recieved from API response
      var serviceConfigTags = Em.keys(data.Clusters.desired_configs).reduce(function (tags, site) {
        if (data.Clusters.desired_configs.hasOwnProperty(site)) {
          // push cluster-env.xml also since it not associated with any service but need to further processing
          if (installedServiceSites.contains(site) || site === 'cluster-env') {
            tags.push({
              siteName: site,
              tagName: data.Clusters.desired_configs[site].tag,
              newTagName: null
            });
          }
        }
        return tags;
      }, []);
      // store configurations
      this.set('serviceConfigTags', serviceConfigTags);
      this.set('isAppliedConfigLoaded', true);
    },
 
    /**
     * Add/update property in `properties` object for each config type with
     * associated kerberos descriptor config value.
     *
     * @private
     * @param {object[]} configurations
     * @param {App.ServiceConfigProperty[]} kerberosDescriptor
     * @returns {object[]}
     */
    mergeDescriptorToConfigurations: function mergeDescriptorToConfigurations(configurations, kerberosDescriptor) {
      return configurations.map(function (configType) {
        var properties = $.extend({}, configType.properties);
        var filteredDescriptor = kerberosDescriptor.filterProperty('filename', configType.type);
        if (filteredDescriptor.length) {
          filteredDescriptor.forEach(function (descriptorConfig) {
            var configName = Em.get(descriptorConfig, 'name');
            properties[configName] = Em.get(descriptorConfig, 'value');
          });
        }
        return {
          type: configType.type,
          version: configType.version,
          tag: configType.tag,
          properties: properties
        };
      });
    },
 
    postKerberosDescriptor: function postKerberosDescriptor(kerberosDescriptor) {
      return App.ajax.send({
        name: 'admin.kerberos.cluster.artifact.create',
        sender: this,
        data: {
          artifactName: 'kerberos_descriptor',
          data: {
            artifact_data: this.removeIdentityReferences(kerberosDescriptor)
          }
        }
      });
    },
 
    /**
     * Send request to update kerberos descriptor
     * @param kerberosDescriptor
     * @returns {$.ajax|*}
     */
    putKerberosDescriptor: function putKerberosDescriptor(kerberosDescriptor) {
      return App.ajax.send({
        name: 'admin.kerberos.cluster.artifact.update',
        sender: this,
        data: {
          artifactName: 'kerberos_descriptor',
          data: {
            artifact_data: this.removeIdentityReferences(kerberosDescriptor)
          }
        },
        success: 'unkerberizeCluster',
        error: 'unkerberizeCluster'
      });
    },
 
    /**
     * The UI should ignore Kerberos identity references
     * when setting the user-supplied Kerberos descriptor
     * @param {object} kerberosDescriptor
     * @returns {object}
     */
    removeIdentityReferences: function removeIdentityReferences(kerberosDescriptor) {
      var notReference = function notReference(identity) {
        return Em.isNone(identity.reference) && !identity.name.startsWith('/');
      };
      kerberosDescriptor.services.forEach(function (service) {
        Eif (service.identities) {
          service.identities = service.identities.filter(notReference);
        }
        Eif (service.components) {
          service.components.forEach(function (component) {
            Eif (component.identities) {
              component.identities = component.identities.filter(notReference);
            }
          });
        }
      });
      return kerberosDescriptor;
    }
 
  });
});