How to use

unmodifiableSortedSet

method

in

java.util.Collections

UnmodifiableNavigableSet(NavigableSet<E> delegate) {
 this.delegate = checkNotNull(delegate);
 this.unmodifiableDelegate = Collections.unmodifiableSortedSet(delegate);
}

/**
 * Returns an unmodifiable view of the specified collection, preserving the interface for
 * instances of {@code SortedSet}, {@code Set}, {@code List} and {@code Collection}, in that order
 * of preference.
 *
 * @param collection the collection for which to return an unmodifiable view
 * @return an unmodifiable view of the collection
 */
private static <V> Collection<V> unmodifiableValueCollection(Collection<V> collection) {
 if (collection instanceof SortedSet) {
  return Collections.unmodifiableSortedSet((SortedSet<V>) collection);
 } else if (collection instanceof Set) {
  return Collections.unmodifiableSet((Set<V>) collection);
 } else if (collection instanceof List) {
  return Collections.unmodifiableList((List<V>) collection);
 }
 return Collections.unmodifiableCollection(collection);
}

UnmodifiableNavigableSet(NavigableSet<E> delegate) {
 this.delegate = checkNotNull(delegate);
 this.unmodifiableDelegate = Collections.unmodifiableSortedSet(delegate);
}

@Override
<E> SortedSet<E> unmodifiableCollectionSubclass(Collection<E> collection) {
 if (collection instanceof NavigableSet) {
  return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
 } else {
  return Collections.unmodifiableSortedSet((SortedSet<E>) collection);
 }
}

@Override
<E> Collection<E> unmodifiableCollectionSubclass(Collection<E> collection) {
 if (collection instanceof NavigableSet) {
  return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
 } else if (collection instanceof SortedSet) {
  return Collections.unmodifiableSortedSet((SortedSet<E>) collection);
 } else {
  return Collections.unmodifiableSet((Set<E>) collection);
 }
}

@Override
<E> Collection<E> unmodifiableCollectionSubclass(Collection<E> collection) {
 if (collection instanceof NavigableSet) {
  return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
 } else if (collection instanceof SortedSet) {
  return Collections.unmodifiableSortedSet((SortedSet<E>) collection);
 } else if (collection instanceof Set) {
  return Collections.unmodifiableSet((Set<E>) collection);
 } else if (collection instanceof List) {
  return Collections.unmodifiableList((List<E>) collection);
 } else {
  return Collections.unmodifiableCollection(collection);
 }
}

/**
 * Returns a set of the names of all the metrics in the registry.
 *
 * @return the names of all the metrics
 */
public SortedSet<String> getMetricNames() {
  return Collections.unmodifiableSortedSet(new TreeSet<String>(metrics.keySet()));
}

/**
 * Returns an unmodifiable view of the specified collection, preserving the interface for
 * instances of {@code SortedSet}, {@code Set}, {@code List} and {@code Collection}, in that order
 * of preference.
 *
 * @param collection the collection for which to return an unmodifiable view
 * @return an unmodifiable view of the collection
 */
private static <V> Collection<V> unmodifiableValueCollection(Collection<V> collection) {
 if (collection instanceof SortedSet) {
  return Collections.unmodifiableSortedSet((SortedSet<V>) collection);
 } else if (collection instanceof Set) {
  return Collections.unmodifiableSet((Set<V>) collection);
 } else if (collection instanceof List) {
  return Collections.unmodifiableList((List<V>) collection);
 }
 return Collections.unmodifiableCollection(collection);
}

@Override
<E> SortedSet<E> unmodifiableCollectionSubclass(Collection<E> collection) {
 if (collection instanceof NavigableSet) {
  return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
 } else {
  return Collections.unmodifiableSortedSet((SortedSet<E>) collection);
 }
}

@Override
<E> Collection<E> unmodifiableCollectionSubclass(Collection<E> collection) {
 if (collection instanceof NavigableSet) {
  return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
 } else if (collection instanceof SortedSet) {
  return Collections.unmodifiableSortedSet((SortedSet<E>) collection);
 } else {
  return Collections.unmodifiableSet((Set<E>) collection);
 }
}

UnmodifiableNavigableSet(NavigableSet<E> delegate) {
 this.delegate = checkNotNull(delegate);
 this.unmodifiableDelegate = Collections.unmodifiableSortedSet(delegate);
}

@Override
<E> Collection<E> unmodifiableCollectionSubclass(Collection<E> collection) {
 if (collection instanceof NavigableSet) {
  return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
 } else if (collection instanceof SortedSet) {
  return Collections.unmodifiableSortedSet((SortedSet<E>) collection);
 } else if (collection instanceof Set) {
  return Collections.unmodifiableSet((Set<E>) collection);
 } else if (collection instanceof List) {
  return Collections.unmodifiableList((List<E>) collection);
 } else {
  return Collections.unmodifiableCollection(collection);
 }
}

@Override
<E> Collection<E> unmodifiableCollectionSubclass(Collection<E> collection) {
 if (collection instanceof NavigableSet) {
  return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
 } else if (collection instanceof SortedSet) {
  return Collections.unmodifiableSortedSet((SortedSet<E>) collection);
 } else {
  return Collections.unmodifiableSet((Set<E>) collection);
 }
}

@Override
<E> SortedSet<E> unmodifiableCollectionSubclass(Collection<E> collection) {
 if (collection instanceof NavigableSet) {
  return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
 } else {
  return Collections.unmodifiableSortedSet((SortedSet<E>) collection);
 }
}

@Override
<E> Collection<E> unmodifiableCollectionSubclass(Collection<E> collection) {
 if (collection instanceof NavigableSet) {
  return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
 } else if (collection instanceof SortedSet) {
  return Collections.unmodifiableSortedSet((SortedSet<E>) collection);
 } else if (collection instanceof Set) {
  return Collections.unmodifiableSet((Set<E>) collection);
 } else if (collection instanceof List) {
  return Collections.unmodifiableList((List<E>) collection);
 } else {
  return Collections.unmodifiableCollection(collection);
 }
}

@Override
public SortedSet<V> get(K key) {
 return Collections.unmodifiableSortedSet(delegate().get(key));
}

@Override
public SortedSet<R> rowKeySet() {
 return Collections.unmodifiableSortedSet(delegate().rowKeySet());
}

/**
 * ZoneInfoProvider searches the given directory for compiled data files.
 *
 * @throws IOException if directory or map file cannot be read
 */
public ZoneInfoProvider(File fileDir) throws IOException {
  if (fileDir == null) {
    throw new IllegalArgumentException("No file directory provided");
  }
  if (!fileDir.exists()) {
    throw new IOException("File directory doesn't exist: " + fileDir);
  }
  if (!fileDir.isDirectory()) {
    throw new IOException("File doesn't refer to a directory: " + fileDir);
  }
  iFileDir = fileDir;
  iResourcePath = null;
  iLoader = null;
  iZoneInfoMap = loadZoneInfoMap(openResource("ZoneInfoMap"));
  iZoneInfoKeys = Collections.unmodifiableSortedSet(new TreeSet<String>(iZoneInfoMap.keySet()));
}

@Override
public SortedSet<R> rowKeySet() {
 return Collections.unmodifiableSortedSet(delegate().rowKeySet());
}

@Override
public SortedSet<V> get(K key) {
 return Collections.unmodifiableSortedSet(delegate().get(key));
}