Performance issue while fetching metadata from Informatica Repository

Question

I'm working on Informatica 8.6(ETL tool) which contains its own repository to save metadata and using their Mapiing SDK API's I'm developing a java application which fetches the objects from the repository.
For this purpose by using "mapfwk.jar", i'm first connecting to the repository using RepositoryConnectionManager class and then at the time of fetching the metadata i used getFolder, getSource & getTarget functions.
Issue: Program is taking to much time for fetching the folders. The time taken by it depends on the number of metadata objects present in it,i.e. as object number increases, time increases.
Please advise how to reduce time for fetching metadata from repository.
Source Code:
#1 - Code for connecting to repository
protected static String PC_CLIENT_INSTALL_PATH = "E:\\Informatica\\PowerCenter8.6.0\\client\\bin";
     protected static String TARGET_REPO_NAME = "test_rep";
     protected static String REPO_SERVER_HOST = "blrdxp-nfadate";
     protected static String REPO_SERVER_PORT = "6001";
     protected static String ADMIN_USERNAME = "Administrator";
     protected static String ADMIN_PASSWORD = "Administrator";
     protected static String REPO_SERVER_DOMAIN_NAME = "Domain_blrdxp-nfadate";
protected void initializeRepositoryProps(){
CachedRepositoryConnectionManager rpMgr = new CachedRepositoryConnectionManager(new PmrepRepositoryConnectionManager());
                  RepoProperties repoProp = new RepoProperties();
                  repoProp.setProperty(RepoPropsConstant.PC_CLIENT_INSTALL_PATH, PC_CLIENT_INSTALL_PATH);
                  repoProp.setProperty(RepoPropsConstant.TARGET_REPO_NAME, TARGET_REPO_NAME);
                  repoProp.setProperty(RepoPropsConstant.REPO_SERVER_DOMAIN_NAME, REPO_SERVER_DOMAIN_NAME);
                  repoProp.setProperty(RepoPropsConstant.REPO_SERVER_HOST, REPO_SERVER_HOST);
                  repoProp.setProperty(RepoPropsConstant.REPO_SERVER_PORT, REPO_SERVER_PORT);
                  repoProp.setProperty(RepoPropsConstant.ADMIN_USERNAME, ADMIN_USERNAME);
                  repoProp.setProperty(RepoPropsConstant.ADMIN_PASSWORD, ADMIN_PASSWORD);
                  rep.setProperties(repoProp);
                  rep.setRepositoryConnectionManager(rpMgr);
}#2 - Code for fetching metadata
Vector<Folder> rep_FetchedFolders = new Vector<Folder>();
public void fetchRepositoryFolders(){
          initializeRepositoryProps();
          System.out.println("Repository Properties set");
          //To fetch Folder
                Vector<Folder> folders = new Vector<Folder>();
          folders = (Vector<Folder>)rep.getFolder();
                for(int i=1 ; i < folders.size(); i++){
           Folder t_folder = new Folder(); 
           t_folder.setName(((Folder)folders.get(i)).getName());
           Vector listOfSources = ((Folder)folders.get((i))).getSource();
                        //To fetch Sources from folder
               for(int b=0; b<listOfSources.size();b++){
                Source src = ((Source)listOfSources.get(b));
                t_folder.addSource(src);
          Vector listOfTargets = ((Folder)folders.get((i))).getTarget();
                        //To fetch Sources from folder
               for(int b=0; b<listOfTargets.size();b++){
                 Target trg = ((Target)listOfTargets.get(b));
                 t_folder.addTarget(trg);
               rep_FetchedFolders.addElement(t_folder);
          }

Answer 1

Hi neel007,
Just use a List instead of a Vector, it's more performant :
List<Folder> rep_FetchedFolders = new ArrayList<Folder>();If you need to synchronize your list, then
List<Folder> rep_FetchedFolders = Collections.synchronizedList(new ArrayList<Folder>());Also, if you're using Java 5 or higher and if you're sure listOfTargets contains only Target objects, instead of this
for(int b=0; b<listOfTargets.size();b++){
   Target trg = ((Target)listOfTargets.get(b));
   t_folder.addTarget(trg);
}you may do this :
for (Target trg : listOfTargets) {
   t_folder.addTarget(trg);
}Edited by: Chicon on May 18, 2009 7:29 AM
Edited by: Chicon on May 18, 2009 7:35 AM