topic Re: [resolved] How to create a java Map from iterate ? in Talend Studio

[resolved] How to create a java Map from iterate ?

Anonymous — Sat, 16 Nov 2024 13:35:33 GMT

Hello,
I need to read a row from input and create a new Map in output.
Can tJavaFlex do this, and how can I forword the new flow map for output ? :/
My java code is like this:

java.util.List<String> fibres= new java.util.ArrayList<String>();
String Id_cable=input_row.Noeud.trim();
Integer Nb_tube=input_row.TUBES;	
Integer Compositio=input_row.COMPOSITIO;
String Id_tube=input_row.Id_tube;
if (Nb_tube>0)
{   	// only one tube input
	for (int i=1;i<=Nb_tube; i++) {
		 Id_tube=Id_cable+"T"+i;
		if(Compositio>0)
		{
			String Id_fibre="";
			for(int j=1;j<=Compositio;j++){ 
				//a new calculated row,for one input row of tube
				// I will have many rows of calculated fibres.
				Id_fibre= Id_tube.trim()+"F"+j;                                    			  
				fibres.add(Id_fibre,Id_fibre);
				fibres.add(Id_tube,Id_tube); 					
			}
		}  	
	}			 
}

May I use tJavaFlex+tFlowtoIterate+tFixedFlow, and how can I use tJavaFlex with 2* for loop ? 😕
Thank you in advance .

Re: [resolved] How to create a java Map from iterate ?

Anonymous — Tue, 26 Jan 2010 09:43:11 GMT

Hello
Yes, tJavaFlex component fix your need. See my screenshots.
code on begin part:

// start part of your Java code
java.util.Map<String,String> fibres= new java.util.HashMap<String,String>();
String Id_cable;
Integer Nb_tube;    
Integer Compositio;
String Id_tube;

code on main part:

			  Id_cable=row1.Noeud.trim();
			  Nb_tube=row1.TUBES;    
			  Compositio=row1.COMPOSITIO;
			  Id_tube=row1.Id_tube;
			  if (Nb_tube>0)
			  {       // only one tube input
			      for (int i=1;i<=Nb_tube; i++) {
			          Id_tube=Id_cable+"T"+i;
			          if(Compositio>0)
			          {
			              String Id_fibre="";
			              for(int j=1;j<=Compositio;j++){ 
			                  //a new calculated row,for one input row of tube
			                  // I will have many rows of calculated fibres.
			                  Id_fibre= Id_tube.trim()+"F"+j;                                                  
			                  fibres.put(Id_fibre,Id_fibre);
			                  fibres.put(Id_tube,Id_tube);                     
			              }
			          }      
			      }             
			  }

code on end part:

// end of the component, outside/closing the loop
 globalMap.put("fibres",fibres);

Best regards

shong

Re: [resolved] How to create a java Map from iterate ?

Anonymous — Tue, 26 Jan 2010 10:57:58 GMT

It's work, thank you shong. :cool: