addMasterHostToGlobals: function()

in ambari-web/app/controllers/main/admin/security/add/step2.js [185:265]
80 lines of code
25 McCabe index (conditional complexity)

  addMasterHostToGlobals: function (serviceConfigs) {
    var oozieService = serviceConfigs.findProperty('serviceName', 'OOZIE');
    var hiveService = serviceConfigs.findProperty('serviceName', 'HIVE');
    var webHcatService = serviceConfigs.findProperty('serviceName', 'WEBHCAT');
    var nagiosService = serviceConfigs.findProperty('serviceName', 'NAGIOS');
    var hbaseService = serviceConfigs.findProperty('serviceName', 'HBASE');
    var zooKeeperService = serviceConfigs.findProperty('serviceName', 'ZOOKEEPER');
    var hdfsService = serviceConfigs.findProperty('serviceName', 'HDFS');
    var mapReduceService = serviceConfigs.findProperty('serviceName', 'MAPREDUCE');
    var mapReduce2Service = serviceConfigs.findProperty('serviceName', 'MAPREDUCE2');
    var yarnService = serviceConfigs.findProperty('serviceName', 'YARN');
    if (oozieService) {
      var oozieServerHost = oozieService.configs.findProperty('name', 'oozie_servername');
      var oozieServerPrincipal = oozieService.configs.findProperty('name', 'oozie_principal_name');
      var oozieSpnegoPrincipal = oozieService.configs.findProperty('name', 'oozie_http_principal_name');
      if (oozieServerHost && oozieServerPrincipal && oozieSpnegoPrincipal) {
        oozieServerHost.defaultValue = App.Service.find('OOZIE').get('hostComponents').findProperty('componentName', 'OOZIE_SERVER').get('host.hostName');
        oozieServerPrincipal.defaultValue = 'oozie/' + oozieServerHost.defaultValue.toLowerCase();
        oozieSpnegoPrincipal.defaultValue = 'HTTP/' + oozieServerHost.defaultValue.toLowerCase();
      }
    }
    if (hiveService) {
      var hiveServerHost = hiveService.configs.findProperty('name', 'hive_metastore');
      if (hiveServerHost) {
        hiveServerHost.defaultValue = App.Service.find('HIVE').get('hostComponents').findProperty('componentName', 'HIVE_SERVER').get('host.hostName');
      }
    }
    if (webHcatService) {
      var webHcatHost = webHcatService.configs.findProperty('name', 'webhcatserver_host');
      var webHcatSpnegoPrincipal = webHcatService.configs.findProperty('name', 'webHCat_http_principal_name');
      if (webHcatHost && webHcatSpnegoPrincipal) {
        webHcatHost.defaultValue = App.Service.find('WEBHCAT').get('hostComponents').findProperty('componentName', 'WEBHCAT_SERVER').get('host.hostName');
        webHcatSpnegoPrincipal.defaultValue = 'HTTP/' + webHcatHost.defaultValue.toLowerCase();
      }
    }

    if (nagiosService) {
      var nagiosServerHost = nagiosService.configs.findProperty('name', 'nagios_server');
      var nagiosServerPrincipal = nagiosService.configs.findProperty('name', 'nagios_principal_name');
      if (nagiosServerHost && nagiosServerPrincipal) {
        nagiosServerHost.defaultValue = App.Service.find('NAGIOS').get('hostComponents').findProperty('componentName', 'NAGIOS_SERVER').get('host.hostName');
        nagiosServerPrincipal.defaultValue = 'nagios/' + nagiosServerHost.defaultValue.toLowerCase();
      }
    }
    if (hdfsService) {
      var namenodeHost = hdfsService.configs.findProperty('name', 'namenode_host');
      var sNamenodeHost = hdfsService.configs.findProperty('name', 'snamenode_host');
      var jnHosts = hdfsService.configs.findProperty('name', 'journalnode_hosts');
      var snComponent = App.Service.find('HDFS').get('hostComponents').findProperty('componentName', 'SECONDARY_NAMENODE');
      var jnComponent = App.Service.find('HDFS').get('hostComponents').findProperty('componentName', 'JOURNALNODE');
      if (namenodeHost) {
        namenodeHost.defaultValue = App.Service.find('HDFS').get('hostComponents').filterProperty('componentName', 'NAMENODE').mapProperty('host.hostName');
      }
      if(sNamenodeHost && snComponent) {
        sNamenodeHost.defaultValue = snComponent.get('host.hostName');
      }
      if(jnHosts && jnComponent) {
        this.setHostsToConfig(hdfsService, 'journalnode_hosts', 'JOURNALNODE');
      }
    }
    if (mapReduceService) {
      var jobTrackerHost = mapReduceService.configs.findProperty('name', 'jobtracker_host');
      if (jobTrackerHost) {
        jobTrackerHost.defaultValue = App.Service.find('MAPREDUCE').get('hostComponents').findProperty('componentName', 'JOBTRACKER').get('host.hostName');
      }
    }
    if (mapReduce2Service) {
      var jobHistoryServerHost = mapReduce2Service.configs.findProperty('name', 'jobhistoryserver_host');
      if (jobHistoryServerHost) {
        jobHistoryServerHost.defaultValue = App.Service.find('MAPREDUCE2').get('hostComponents').findProperty('componentName', 'HISTORYSERVER').get('host.hostName');
      }
    }
    if (yarnService) {
      var resourceManagerHost = yarnService.configs.findProperty('name', 'resourcemanager_host');
      if (resourceManagerHost) {
        resourceManagerHost.defaultValue = App.Service.find('YARN').get('hostComponents').findProperty('componentName', 'RESOURCEMANAGER').get('host.hostName');
      }
    }
    this.setHostsToConfig(hbaseService, 'hbasemaster_host', 'HBASE_MASTER');
    this.setHostsToConfig(zooKeeperService, 'zookeeperserver_hosts', 'ZOOKEEPER_SERVER');
  },