public static synchronized TreeLockManager get()

in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync/TreeLockManager.java [61:81]

• 21 lines of code
• 3 McCabe index (conditional complexity)

  public static synchronized TreeLockManager get(FileSystem fs)
        throws IOException {
    Configuration conf = fs.getConf();
    Class<? extends TreeLockManager> impl = conf.getClass(
        Constants.SYNC_IMPL, ZKTreeLockManager.class, TreeLockManager.class);
    TreeLockManager instance = null;
    Exception cause = null;
    try {
      instance = impl.newInstance();
    } catch (Exception e) {
      cause = e;
    }
    if (instance == null) {
      throw new IOException("Class referred to by "
            + Constants.SYNC_IMPL + ", " + impl.getName()
            + ", is not a valid implementation of "
            + TreeLockManager.class.getName(), cause);
    }
    instance.initialize(fs);
    return instance;
  }