public AutoLock lockListings()

in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync/TreeLockManager.java [438:463]

• 26 lines of code
• 5 McCabe index (conditional complexity)

  public AutoLock lockListings(Path[] rawPaths, Depth depth) throws IOException {
    Path[] paths = norm(rawPaths);
    for (int i = 0; i < paths.length; i++) {
      LOG.debug("About to lock for listings: {}", paths[i]);
      treeWriteLock(paths[i], depth);
    }
    return new AutoLock() {
      public void close() throws IOException {
        Throwable lastThrown = null;
        for (int i = 0; i < paths.length; i++) {
          LOG.debug("About to unlock after listings: {}", paths[i]);
          try {
            writeUnlock(paths[i]);
          } catch (Throwable e) {
            lastThrown = e;
            LOG.warn("Caught throwable while unlocking: {}", e.getMessage());
            e.printStackTrace();
          }
        }
        if (lastThrown != null) {
          throw new IOException("At least one throwable caught while unlocking",
                lastThrown);
        }
      }
    };
  }