text: /**
   * 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 date = require('utils/date');
  var numberUtils = require('utils/number_utils');
  
  App.MainDashboardServiceHdfsView = App.MainDashboardServiceView.extend({
    templateName: require('templates/main/dashboard/service/hdfs'),
    serviceName: 'HDFS',
    Chart: App.ChartPieView.extend({
      service: null,
      color: '#0066B3',
      stroke: '#0066B3',
      palette: new Rickshaw.Color.Palette({
        scheme: [ 'rgba(0,102,179,0)', 'rgba(0,102,179,1)'].reverse()
      }),
      data: function () {
        var total = this.get('service.capacityTotal') + 0;
        var remaining = (this.get('service.capacityRemaining') + 0);
        var used = total - remaining;
        return [ used, remaining ];
      }.property('service.capacityUsed', 'service.capacityTotal')
    }),
  
    dashboardMasterComponentView: Em.View.extend({
      templateName: require('templates/main/service/info/summary/master_components'),
      mastersComp : function() {
        var masters = this.get('parentView.service.hostComponents').filter(function(comp){
          return comp.get('isMaster') && comp.get('componentName') !== 'JOURNALNODE';
        });
        return masters;
      }.property('service')
    }),
  
    dataNodesLive: function(){
      return App.HostComponent.find().filterProperty('componentName', 'DATANODE').filterProperty("workStatus","STARTED");
    }.property('service.hostComponents.@each'),
    dataNodesDead: function(){
      return App.HostComponent.find().filterProperty('componentName', 'DATANODE').filterProperty("workStatus","INSTALLED");
    }.property('service.hostComponents.@each'),
  
    dataNodeHostText: function () {
      if (this.get("service.dataNodes").length == 0) {
        return '';
      } else if (this.get("service.dataNodes").length > 1) {
        return Em.I18n.t('services.service.summary.viewHosts');
      } else {
        return Em.I18n.t('services.service.summary.viewHost');
      }
    }.property("service"),
  
    showJournalNodes: function () {
      return App.HostComponent.find().filterProperty('componentName', 'JOURNALNODE').get('length') > 0;
    }.property('service.hostComponents.@each'),
  
    journalNodeHostText: function () {
      if (this.get("service.journalNodes").content.length == 0) {
        return '';
      } else if (this.get("service.journalNodes").content.length > 1){
        return Em.I18n.t('services.service.summary.viewHosts');
      }else{
        return Em.I18n.t('services.service.summary.viewHost');
      }
    }.property("service"),
  
    dataNodesLiveTextView: App.ComponentLiveTextView.extend({
      liveComponents: function() {
        return App.HostComponent.find().filterProperty('componentName', 'DATANODE').filterProperty("workStatus","STARTED").get("length");
      }.property("service.hostComponents.@each"),
      totalComponents: function() {
        return this.get("service.dataNodes.length");
      }.property("service.dataNodes.length")
    }),
  
    journalNodesLiveTextView: App.ComponentLiveTextView.extend({
      liveComponents: function() {
        return App.HostComponent.find().filterProperty('componentName', 'JOURNALNODE').filterProperty("workStatus","STARTED").get("length");
      }.property("service.hostComponents.@each"),
      totalComponents: function() {
        return this.get("service.journalNodes.length");
      }.property("service.journalNodes.length")
    }),
  
    dfsTotalBlocks: function(){
      return this.formatUnavailable(this.get('service.dfsTotalBlocks'));
    }.property('service.dfsTotalBlocks'),
    dfsTotalFiles: function(){
      return this.formatUnavailable(this.get('service.dfsTotalFiles'));
    }.property('service.dfsTotalFiles'),
    dfsCorruptBlocks: function(){
      return this.formatUnavailable(this.get('service.dfsCorruptBlocks'));
    }.property('service.dfsCorruptBlocks'),
    dfsMissingBlocks: function(){
      return this.formatUnavailable(this.get('service.dfsMissingBlocks'));
    }.property('service.dfsMissingBlocks'),
    dfsUnderReplicatedBlocks: function(){
      return this.formatUnavailable(this.get('service.dfsUnderReplicatedBlocks'));
    }.property('service.dfsUnderReplicatedBlocks'),
  
    blockErrorsMessage: function() {
      return Em.I18n.t('dashboard.services.hdfs.blockErrors').format(this.get('dfsCorruptBlocks'), this.get('dfsMissingBlocks'), this.get('dfsUnderReplicatedBlocks'));
    }.property('dfsCorruptBlocks','dfsMissingBlocks','dfsUnderReplicatedBlocks'),
  
    nodeUptime: function () {
      var uptime = this.get('service').get('nameNodeStartTime');
      if (uptime && uptime > 0){
        var diff = (new Date()).getTime() - uptime;
        if (diff < 0) {
          diff = 0;
        }
        var formatted = date.timingFormat(diff);
        return this.t('dashboard.services.uptime').format(formatted);
      }
      return this.t('services.service.summary.notRunning');
    }.property("service.nameNodeStartTime"),
  
    nodeWebUrl: function () {
      return "http://" + (App.singleNodeInstall ? App.singleNodeAlias :  this.get('service').get('nameNode').get('publicHostName')) + ":50070";
    }.property('service.nameNode'),
  
    nodeHeap: function () {
      var memUsed = this.get('service').get('jvmMemoryHeapUsed');
      var memCommitted = this.get('service').get('jvmMemoryHeapCommitted');
      var percent = memCommitted > 0 ? ((100 * memUsed) / memCommitted) : 0;
      return this.t('dashboard.services.hdfs.nodes.heapUsed').format(
          numberUtils.bytesToSize(memUsed, 1, 'parseFloat', 1024 * 1024), 
          numberUtils.bytesToSize(memCommitted, 1, 'parseFloat', 1024 * 1024), 
          percent.toFixed(1));
    }.property('service.jvmMemoryHeapUsed', 'service.jvmMemoryHeapCommitted'),
  
    summaryHeader: function () {
      var text = this.t("dashboard.services.hdfs.summary");
      var svc = this.get('service');
      var liveCount = svc.get('liveDataNodes').get('length');
      var totalCount = svc.get('dataNodes').get('length');
      var total = this.get('service.capacityTotal') + 0;
      var remaining = this.get('service.capacityRemaining') + 0;
      var used = total - remaining;
      var percent = total > 0 ? ((used * 100) / total).toFixed(1) : 0;
      if (percent == "NaN" || percent < 0) {
        percent = Em.I18n.t('services.service.summary.notAvailable') + " ";
      }
      return text.format(liveCount, totalCount, percent);
    }.property('service.liveDataNodes', 'service.dataNodes', 'service.capacityUsed', 'service.capacityTotal'),
  
    capacity: function () {
      var text = this.t("dashboard.services.hdfs.capacityUsed");
      var total = this.get('service.capacityTotal');
      var remaining = this.get('service.capacityRemaining');
      var used = total !== null && remaining !== null ? total - remaining : null;
      var percent = total > 0 ? ((used * 100) / total).toFixed(1) : 0;
      if (percent == "NaN" || percent < 0) {
        percent = Em.I18n.t('services.service.summary.notAvailable') + " ";
      }
      return text.format(numberUtils.bytesToSize(used, 1, 'parseFloat'), numberUtils.bytesToSize(total, 1, 'parseFloat'), percent);
    }.property('service.capacityUsed', 'service.capacityTotal'),
  
    dataNodeComponent: function () {
      return App.HostComponent.find().findProperty('componentName', 'DATANODE');
    }.property(),
  
    journalNodeComponent: function () {
      return App.HostComponent.find().findProperty('componentName', 'JOURNALNODE');
    }.property(),
  
    safeModeStatus: function () {
      var safeMode = this.get('service.safeModeStatus');
      if (safeMode == null) {
        return Em.I18n.t("services.service.summary.notAvailable");
      } else if (safeMode.length == 0) {
        return Em.I18n.t("services.service.summary.safeModeStatus.notInSafeMode");
      } else {
        return Em.I18n.t("services.service.summary.safeModeStatus.inSafeMode");
      }
    }.property('service.safeModeStatus'),
    upgradeStatus: function () {
      var upgradeStatus = this.get('service.upgradeStatus');
      var healthStatus = this.get('service.healthStatus');
      if (upgradeStatus) {
        return Em.I18n.t('services.service.summary.pendingUpgradeStatus.notPending');
      } else if (healthStatus == 'green') {
        return Em.I18n.t('services.service.summary.pendingUpgradeStatus.pending');
      } else {
        return Em.I18n.t("services.service.summary.notAvailable");
      }
    }.property('service.upgradeStatus', 'service.healthStatus')
  });
  