private void printJsonForTargetsInternal()

in src/com/facebook/buck/cli/TargetsCommand.java [187:263]
60 lines of code
11 McCabe index (conditional complexity)

  private void printJsonForTargetsInternal(
      SortedMap<String, BuildRule> buildIndex,
      ImmutableList<String> defaultIncludes) throws BuildFileParseException, IOException {
    // Print the JSON representation of the build rule for the specified target(s).
    getStdOut().println("[");

    ObjectMapper mapper = new ObjectMapper();
    Iterator<String> keySetIterator = buildIndex.keySet().iterator();

    while (keySetIterator.hasNext()) {
      String key = keySetIterator.next();
      BuildRule buildRule = buildIndex.get(key);
      BuildTarget buildTarget = buildRule.getBuildTarget();

      List<Map<String, Object>> rules;
      try {
        File buildFile = buildTarget.getBuildFile(getProjectFilesystem());
        rules = getParser().parseBuildFile(buildFile, defaultIncludes);
      } catch (BuildTargetException e) {
        console.printErrorText(
            "unable to find rule for target " + buildTarget.getFullyQualifiedName());
        continue;
      }

      // Find the build rule information that corresponds to this build buildTarget.
      Map<String, Object> targetRule = null;
      for (Map<String, Object> rule : rules) {
        String name = (String)rule.get("name");
        if (name.equals(buildTarget.getShortName())) {
          targetRule = rule;
          break;
        }
      }

      if (targetRule == null) {
        console.printErrorText(
            "unable to find rule for target " + buildTarget.getFullyQualifiedName());
        continue;
      }

      String outputPath;
      Buildable buildable = buildRule.getBuildable();
      if (buildable != null) {
        outputPath = buildable.getPathToOutputFile();
      } else if (BuildRuleType.PROJECT_CONFIG.equals(buildRule.getType())) {
        // We know that project_config() rules are special.
        outputPath = null;
      } else {
        throw new RuntimeException("No Buildable for " + buildRule.getFullyQualifiedName());
      }

      if (outputPath != null) {
        targetRule.put("buck.output_file", outputPath);
      }

      // Sort the rule items, both so we have a stable order for unit tests and
      // to improve readability of the output.
      SortedMap<String, Object> sortedTargetRule = Maps.newTreeMap();
      sortedTargetRule.putAll(targetRule);

      // Print the build rule information as JSON.
      StringWriter stringWriter = new StringWriter();
      try {
        mapper.writerWithDefaultPrettyPrinter().writeValue(stringWriter, sortedTargetRule);
      } catch (IOException e) {
        // Shouldn't be possible while writing to a StringWriter...
        throw Throwables.propagate(e);
      }
      String output = stringWriter.getBuffer().toString();
      if (keySetIterator.hasNext()) {
        output += ",";
      }
      getStdOut().println(output);
    }

    getStdOut().println("]");
  }