Skip to main content

Screaming for XMLStreamReader!!

I am studying on how to extract data from xml file.Actually I need to learn it for my project requirement.So I googling around and found these nice links.

http://salesforceapexcodecorner.blogspot.com

http://blogs.developerforce.com

http://it.toolbox.com/

Some of it using XMLStreamReader and some using XMLNode.But I choose to use XMLStreamReader.Why? I think it enough for my project requirement and for this time being I am
able to understand XMLStreamReader better.

If you refer to links above, most of it giving simple XML which only contain one element.During my self study, I am trying to read XML file whereby the element contains sub elements such as below


<user xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<id>2262</id>
  <displayname>Unidha</displayname>
<email>unidha@yahoo.com</email>
<usergroups>
 <usergroup><id>301</id><name>Administrators</name></usergroup> <usergroup><id>302</id><name>Sales</name></usergroup>
</usergroups>
<city>Cybercity</city></user>
Notice that beside <Id>2262</Id> ,there Id for UserGroups which are 301 and 302.Now I am going to read the Id without get confuse which one is User id and which one is Group Id.The code below is wrote based on article in link I mentioned above.
public class MyXmlStreamReader {

   //object that hold information on transaction,user etc.
     class Employee{
        
        private List&lt;String&gt; GroupId{get;set;} //one user might have multiple group being assigned
        private Boolean autoProvision{get;set;}
        private Id userId{get;set;}
        private String email{get;set;}
        private String displayName{get;set;}
        private String city{get;set;}
      
   
    }
  
  public void test() {
     String str = '<user xmlns:i="http://www.w3.org/2001/XMLSchema-instance">'
                   +'<id>2262</id>'
                   +'<displayname>Unidha</displayname>'
                   +'<email>unidha@yahoo.com</email>'
                   +'<usergroups>'
                   +'<usergroup><id>301</id><name>Administrators</name></usergroup>'
                   +'<usergroup><id>302</id><name>Sales</name></usergroup>'
                   +'</usergroups>'
                   +'<city>Cybercity</city></user>';
                   

     
     XmlStreamReader xsr = new XmlStreamReader(str);
      
     readResponse(xsr);
        
        }


   public void readResponse(XmlStreamReader reader) {
   
   
    boolean isFlag=false;
    Employee   empRecord= new Employee ();
    empRecord.GroupId=new List&lt;String&gt;();
   
   while (reader.hasNext()) { 
       
        if (reader.getEventType() == XmlTag.START_ELEMENT) { 
           if ('Id' == reader.getLocalName()) {
              String strId= getValueFromTag(reader);
                          
              if(isFlag){
                 empRecord.GroupId.add(strId);
              }
             
            }
            else if ('DisplayName' == reader.getLocalName()) {
                empRecord.displayName= getValueFromTag(reader);
          
            }
             else if ('Email' == reader.getLocalName()) {
                empRecord.email= getValueFromTag(reader);
                
            }
           else if('UserGroups' == reader.getLocalName()) {
                isFlag=true;
            }      
            else if('City' == reader.getLocalName()) {
                empRecord.city= getValueFromTag(reader);
            }       
                
           }
          else if (reader.getEventType() == XmlTag.END_ELEMENT){
             if('UserGroups' == reader.getLocalName()){
                 isFlag=false;
             }
            }
      reader.next();
            
            
            }//end of while
     
      }
      
      }//end of class
Now, watch closely at isFlag variable.I use this boolean to indicate when the Id is UserId and when it is become the GroupId.

That's it.My problem is solved for this time being.Let's drink some coffeee with cinnamon roll.Yum yum!

Comments

Popular posts from this blog

Search Solution Basics

When is it a good time to create a customized search solution? You're developing an external knowledge base for user support. You're in the mood for a fun Friday night. The sales reps just started using the Sales Cloud in Lightning Experience. You want to put your company branding in the search bar. What differentiates SOSL from SOQL? Syntax SOSL searches the search index instead of the org database. SOSL searches more efficiently when you don't know in which object the data resides. All of the above. SOSL works with: REST only SOAP only REST, SOAP, and Apex SOQL only What does a search for a single object look like in SOSL? FIND {cloud} RETURNING Account FIND in ACCOUNT RETURNING "cloud" FIND "cloud" in ACCOUNT FIND (cloud) RIGHT NOW! What does a search for multiple objects look like in SOSL? FIND {sneakers} RETURNING ALL ARTICLES FIND {sneakers} in ALL OBJECTS FIND {sneakers} RETURNING Product2, Content

Process Builder is not fired when field update is called from Approval Process

Scenario In Final Approvals section ; in Approval Process we have field update to update Status field. In Process Builder , we have some action that need to be done when Status field is updated in Approval Process.However this process builder is not fired. Solution To handle this, in Field Update in Approval Process , check Re-evaluated Workflow Rules after Field Change as picture below. What happen if field updated from Approval Process. Workflow - does not fires untill Re-evaluate workflow checkbox is ticked on your field update Process Builder - does not fires untill Re-evaluate workflow checkbox is ticked on your field update Trigger - will fire if conditions are matched This is explained in article here  . Field Updates That Re-evaluate Workflow Rules If  Re-evaluate Workflow Rules After Field Change  is enabled for a field update action, Salesforce  re-evaluates all workflow rules on the object if the field update results in a change to the value of the fi

Tips and Tricks : Test class for Invocable method

Issue : I got 100% coverage in my sandbox but when run validation for deployment it returns 0% coverage It turn out that in my sandbox, I am depending on Process Builder to Invocable Apex class, as long I manipulate test data that fire Process Builder it will call Invocable class. This is not useful when deploying it to Production although it gets deployed together with Process Builder. The correct way is to direct call Invocable method inside test class itself. Example of class : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 global class MyCustomObject_StatusUpdate_Util { @InvocableMethod ( label = ' Update Quote Status ' ) public static void updateQuote ( Request [] requests ) { Set < Id > setOppId = new Set < Id >(); List < SBQQ__Quote__c > listQuoteToUpdate = new List < SBQQ__Quote__c >(); for ( Request request : requests ) {