private static List<String> getListProfileProperty(IProfile profile, String key) {
   List<String> listProperty = new ArrayList<String>();
   String dropinRepositories = profile.getProperty(key);
   if (dropinRepositories != null) {
     StringTokenizer tokenizer = new StringTokenizer(dropinRepositories, PIPE);
     while (tokenizer.hasMoreTokens()) {
       listProperty.add(tokenizer.nextToken());
     }
   }
   return listProperty;
 }
  public static IFileArtifactRepository getAggregatedBundleRepository(
      IProvisioningAgent agent, IProfile profile, int repoFilter) {
    List<IFileArtifactRepository> bundleRepositories = new ArrayList<IFileArtifactRepository>();

    // we check for a shared bundle pool first as it should be preferred over the user bundle pool
    // in a shared install
    IArtifactRepositoryManager manager = getArtifactRepositoryManager(agent);
    if ((repoFilter & AGGREGATE_SHARED_CACHE) != 0) {
      String sharedCache = profile.getProperty(IProfile.PROP_SHARED_CACHE);
      if (sharedCache != null) {
        try {
          URI repoLocation = new File(sharedCache).toURI();
          IArtifactRepository repository = manager.loadRepository(repoLocation, null);
          if (repository != null
              && repository instanceof IFileArtifactRepository
              && !bundleRepositories.contains(repository))
            bundleRepositories.add((IFileArtifactRepository) repository);
        } catch (ProvisionException e) {
          // skip repository if it could not be read
        }
      }
    }

    if ((repoFilter & AGGREGATE_CACHE) != 0) {
      IFileArtifactRepository bundlePool = Util.getBundlePoolRepository(agent, profile);
      if (bundlePool != null) bundleRepositories.add(bundlePool);
    }

    if ((repoFilter & AGGREGATE_CACHE_EXTENSIONS) != 0) {
      List<String> repos = getListProfileProperty(profile, CACHE_EXTENSIONS);
      for (String repo : repos) {
        try {
          URI repoLocation;
          try {
            repoLocation = new URI(repo);
          } catch (URISyntaxException e) {
            // in 1.0 we wrote unencoded URL strings, so try as an unencoded string
            repoLocation = URIUtil.fromString(repo);
          }
          IArtifactRepository repository = manager.loadRepository(repoLocation, null);
          if (repository != null
              && repository instanceof IFileArtifactRepository
              && !bundleRepositories.contains(repository))
            bundleRepositories.add((IFileArtifactRepository) repository);
        } catch (ProvisionException e) {
          // skip repositories that could not be read
        } catch (URISyntaxException e) {
          // unexpected, URLs should be pre-checked
          LogHelper.log(new Status(IStatus.ERROR, Activator.ID, e.getMessage(), e));
        }
      }
    }
    return new AggregatedBundleRepository(agent, bundleRepositories);
  }