code: private List<String> getSchemaStringsFromDir(File dir) {
      List<String> schemaStrings = new ArrayList<String>();
      Collection<File> schemaFiles = FileUtils.listFiles(dir,
          new SuffixFileFilter(".avsc"), TrueFileFilter.INSTANCE);
      for (File schemaFile : schemaFiles) {
        schemaStrings.add(getSchemaStringFromFile(schemaFile));
      }
      return schemaStrings;
    }
docs: Gets the list of HBase Common Avro schema strings from dir. It recursively
  searches dir to find files that end in .avsc to locate those strings.
  
  @param dir
  The dir to recursively search for schema strings
  @return The list of schema strings