How to use

localPeek

method

in

org.apache.ignite.internal.processors.cache.IgniteInternalCache

/** {@inheritDoc} */
@Nullable @Override public Object localPeek(
  Object key,
  CachePeekMode[] peekModes
) throws IgniteCheckedException {
  return delegate.get().localPeek(keyTransformer.transform(key), peekModes);
}

/** {@inheritDoc} */
@Nullable @Override public V localPeek(K key,
  CachePeekMode[] peekModes)
  throws IgniteCheckedException {
  CacheOperationContext prev = gate.enter(opCtx);
  try {
    return delegate.localPeek(key, peekModes);
  }
  finally {
    gate.leave(prev);
  }
}

/** {@inheritDoc} */
@Nullable @Override public V localPeek(K key, CachePeekMode... peekModes) {
  IgniteInternalCache<K, V> delegate = getDelegateSafe();
  try {
    return delegate.localPeek(key, peekModes);
  }
  catch (IgniteException | IgniteCheckedException e) {
    throw cacheException(e);
  }
}

/**
 * Resolves task name by task name hash.
 *
 * @param taskNameHash Task name hash.
 * @return Task name or {@code null} if not found.
 */
public String resolveTaskName(int taskNameHash) {
  if (taskNameHash == 0)
    return null;
  assert ctx.security().enabled();
  try {
    return taskMetaCache().localPeek(
      new GridTaskNameHashKey(taskNameHash), null);
  }
  catch (IgniteCheckedException e) {
    throw new IgniteException(e);
  }
}

/** @throws Exception If failed. */
@Test
public void testCreate() throws Exception {
  IgfsPath path = path("/file");
  try (IgfsOutputStream os = igfs.create(path, false)) {
    assert os != null;
    IgfsFileImpl info = (IgfsFileImpl)igfs.info(path);
    for (int i = 0; i < nodesCount(); i++) {
      IgfsEntryInfo fileInfo =
        (IgfsEntryInfo)grid(i).cachex(metaCacheName).localPeek(info.fileId(), null);
      assertNotNull(fileInfo);
      assertNotNull(fileInfo.listing());
    }
  }
  finally {
    igfs.delete(path("/"), true);
  }
}

/** {@inheritDoc} */
@Nullable @Override public V localPeek(K key, CachePeekMode... peekModes) {
  try {
    return delegate.localPeek(key, peekModes, null);
  }
  catch (IgniteException | IgniteCheckedException e) {
    throw cacheException(e);
  }
}

/** {@inheritDoc} */
@Nullable @Override public V localPeek(K key,
  CachePeekMode[] peekModes,
  @Nullable IgniteCacheExpiryPolicy plc)
  throws IgniteCheckedException {
  CacheOperationContext prev = gate.enter(opCtx);
  try {
    return delegate.localPeek(key, peekModes, plc);
  }
  finally {
    gate.leave(prev);
  }
}

/**
 * Resolves task name by task name hash.
 *
 * @param taskNameHash Task name hash.
 * @return Task name or {@code null} if not found.
 */
public String resolveTaskName(int taskNameHash) {
  if (taskNameHash == 0)
    return null;
  assert ctx.security().enabled();
  try {
    return taskMetaCache().localPeek(
      new GridTaskNameHashKey(taskNameHash), null, null);
  }
  catch (IgniteCheckedException e) {
    throw new IgniteException(e);
  }
}