Github user james-sirota commented on a diff in the pull request:

    https://github.com/apache/metron/pull/788#discussion_r144174823
  
    --- Diff: 
metron-interface/metron-alerts/src/app/alerts/alert-details/alert-details.component.ts
 ---
    @@ -133,6 +173,40 @@ export class AlertDetailsComponent implements OnInit {
         });
       }
     
    +  onAddComment() {
    +    let alertComment = new AlertComment(this.alertCommentStr, 
this.authenticationService.getCurrentUserName(), new Date().getTime());
    +    let tAlertComments = this.alertCommentsWrapper.map(alertsWrapper => 
alertsWrapper.alertComment);
    +    tAlertComments.unshift(alertComment);
    +    this.patchAlert(new Patch('add', '/comments', tAlertComments));
    +  }
    +
    +  patchAlert(patch: Patch) {
    +    let patchRequest = new PatchRequest();
    +    patchRequest.guid = this.alertSource.guid;
    +    patchRequest.index = this.alertIndex;
    +    patchRequest.patch = [patch];
    +    patchRequest.sensorType = this.alertSourceType;
    +
    +    this.updateService.patch(patchRequest).subscribe(() => {
    +      this.getData();
    +    });
    +  }
    +
    +  onDeleteComment(index: number) {
    +    let commentText =  'Do you wish to delete the comment ';
    +    if (this.alertCommentsWrapper[index].alertComment.comment.length > 25 
) {
    +      commentText += ' \'' + 
this.alertCommentsWrapper[index].alertComment.comment.substr(0, 25) + '...\'';
    +    } else {
    +      commentText += ' \'' + 
this.alertCommentsWrapper[index].alertComment.comment + '\'';
    +    }
    +
    +    
this.metronDialogBox.showConfirmationMessage(commentText).subscribe(response => 
{
    +      if (response) {
    +        this.alertCommentsWrapper.splice(index, 1);
    +        this.patchAlert(new Patch('add', '/comments', 
this.alertCommentsWrapper.map(alertsWrapper => alertsWrapper.alertComment)));
    --- End diff --
    
    What I would recommend is just to document around potential issues.  I 
think what we have here is fine


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