private String parseArtifactsList()

in agent/src/main/java/jetbrains/buildServer/torrent/TorrentTransportFactory.java [288:330]
39 lines of code
8 McCabe index (conditional complexity)

    private String parseArtifactsList(@NotNull final String teamcityIvyUrl, @NotNull final File target) {
      try {
        byte[] ivyData = myHttpDownloader.download(teamcityIvyUrl);
        XPath xpath = XPathFactory.newInstance().newXPath();
        NodeList artifactList = (NodeList) xpath.evaluate("/ivy-module/publications/artifact",
                new InputSource(new ByteArrayInputStream(ivyData)), XPathConstants.NODESET);
        Set<String> artifactsSet = new HashSet<String>();
        for (int i = 0; i < artifactList.getLength(); i++) {
          Node artifact = artifactList.item(i);
          final String artifactName = artifact.getAttributes().getNamedItem("name").getTextContent();
          final String artifactExt = artifact.getAttributes().getNamedItem("ext").getTextContent();
          if (!StringUtil.isEmpty(artifactExt)) {
            artifactsSet.add(artifactName + "." + artifactExt);
          } else {
            artifactsSet.add(artifactName);
          }
        }

        for (String s : artifactsSet) {
          if (s.startsWith(ArtifactsConstants.TEAMCITY_ARTIFACTS_DIR))
            continue;
          String proposedTorrentName = String.format("%s%s.torrent", TEAMCITY_TORRENTS, s);
          if (artifactsSet.contains(proposedTorrentName)) {
            myTorrentsForArtifacts.put(s, proposedTorrentName);
          }
        }

        final NodeList info = (NodeList) xpath.evaluate("ivy-module/info",
                new InputSource(new ByteArrayInputStream(ivyData)), XPathConstants.NODESET);

        if (info.getLength() == 1) {
          final Node infoNode = info.item(0);
          final String module = infoNode.getAttributes().getNamedItem("module").getTextContent();
          final String revision = infoNode.getAttributes().getNamedItem("revision").getTextContent();
          FileUtils.writeByteArrayToFile(target, ivyData);
          return String.format("%s_%s_%s", TEAMCITY_IVY, module, revision);
        }

      } catch (Exception e) {
        log2Build(String.format("Unknown error while parsing %s: %s", TEAMCITY_IVY, e.getMessage()));
      }
      return null;
    }