ambari/hmc/js/deployAddedNodesProgress.js

function DeployAddedNodes() {

  function generateLogsContent(errorInfoJson) {
    return '<pre>' +
             globalYui.JSON.stringify( errorInfoJson.logs, null, 4 ) +
           '</pre>';
  }
    
  this.renderProgress = function(progressInfo) {
  
    hideLoadingImg();
  
    /* At this point, our users are done with the installation wizard
     * and have asked for a deploy, so there's no going back - remove
     * all traces of #installationWizardProgressBarDivId.
     */
    var installationWizardProgressBarDiv = globalYui.one('#installationWizardProgressBarDivId');
  
    /* But be safe and perform this removal only if #installationWizardProgressBarDivId 
     * actually exists on the page - this .js file is now being used in more 
     * than one place, so this robustness is needed.
     */
    if (installationWizardProgressBarDiv) {
      installationWizardProgressBarDiv.setStyle('display', 'none')
    }
  
    var progressStatusMessage = {
  
      success:
        '<p>' +
          'Successfully added new nodes to your cluster.<br><a href="index.php" id="addMoreNodesSuccessLink" style="margin-top:10px" class="btn btn-large">Continue</a>' + 
        '</p>',
      failure:
        '<p>' +
          'Failed to add new nodes to the cluster.<br>Take a look at the ' +
            '<a href="javascript:void(null)" id="showDeployTxnLogsLinkId">deploy logs</a>' +
          ' to find out what might have gone wrong.' +
          '<a href="index.php" class="btn btn-large" style="margin-top:10px" id="addMoreNodesFailedLink">' + 
          'Continue' +
          '</a>' +
        '</p>'
    };
  
    var postCompletionFixup = {
  
      success: function(txnProgressWidget) {  
      },
  
      failure: function(txnProgressWidget) {
  
        /* Create the panel that'll display our error info. */
        var errorInfoPanel = 
          createInformationalPanel( '#informationalPanelContainerDivId', 'Deploy Logs' );
  
        /* Prime the panel to start off showing our stock loading image. */
        var errorInfoPanelBodyContent = 
          '<img id="errorInfoPanelLoadingImgId" class="loadingImg" src="../images/loading.gif" />';
  
        /* Make the call to our backend to fetch the report for this txnId. */
        globalYui.io('../php/frontend/fetchTxnLogs.php?clusterName=' + 
          txnProgressWidget.txnProgressContext.clusterName + '&txnId=' + txnProgressWidget.txnProgressContext.txnId, {
            
            timeout: 10000,
            on: {
              success: function (x,o) {
  
                globalYui.log("RAW JSON DATA: " + o.responseText);
  
                var errorInfoJson = null;
  
                // Process the JSON data returned from the server
                try {
                  errorInfoJson = globalYui.JSON.parse(o.responseText);
                }
                catch (e) {
                  alert("JSON Parse failed!");
                  return;
                }
  
                /* TODO XXX Remove some of the noise from this to allow
                 * for better corelation - for now, just dump a 
                 * pretty-printed version of the returned JSON.
                 */
                errorInfoPanelBodyContent = generateLogsContent(errorInfoJson);
  
                /* Update the contents of errorInfoPanel (which was, till
                 * now, showing the loading image). 
                 */
                errorInfoPanel.set( 'bodyContent', errorInfoPanelBodyContent );
              },
              failure: function (x,o) {
                alert("Async call failed!");
              }
          }
        });
  
        /* Register a click-handler for #showDeployTxnLogsLinkId to render 
         * the contents inside errorInfoPanel (and make it visible). 
         */
        globalYui.one("#showDeployTxnLogsLinkId").on( "click", function(e) {
          errorInfoPanel.set('bodyContent', errorInfoPanelBodyContent);
          errorInfoPanel.show();
  
        });
      }
    };
  
    var progressWidget = new TxnProgressWidget(progressInfo, 'Add Nodes', progressStatusMessage, postCompletionFixup);
    
    progressWidget.show();
  } 
};