content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.master.metastore;
  
  import alluxio.master.file.meta.EdgeEntry;
  import alluxio.master.file.meta.Inode;
  import alluxio.master.file.meta.InodeDirectoryView;
  import alluxio.master.file.meta.MutableInode;
  import alluxio.resource.CloseableIterator;
  
  import com.google.common.annotations.VisibleForTesting;
  
  import java.io.IOException;
  import java.util.Optional;
  import java.util.Set;
  
  /**
   * Wrapper for providing read-only access to an inode store.
   */
  public class DelegatingReadOnlyInodeStore implements ReadOnlyInodeStore {
    private final InodeStore mDelegate;
  
    /**
     * @param delegate the delegate inode store
     */
    public DelegatingReadOnlyInodeStore(InodeStore delegate) {
      mDelegate = delegate;
    }
  
    @Override
    public Optional<Inode> get(long id, ReadOption option) {
      return mDelegate.get(id, option);
    }
  
    @Override
    public CloseableIterator<Long> getChildIds(Long inodeId, ReadOption option) {
      return mDelegate.getChildIds(inodeId, option);
    }
  
    @Override
    public CloseableIterator<Long> getChildIds(InodeDirectoryView inode, ReadOption option) {
      return mDelegate.getChildIds(inode, option);
    }
  
    @Override
    public CloseableIterator<? extends Inode> getChildren(Long inodeId, ReadOption option) {
      return mDelegate.getChildren(inodeId, option);
    }
  
    @Override
    public CloseableIterator<? extends Inode> getChildren(
        InodeDirectoryView inode, ReadOption option) {
      return mDelegate.getChildren(inode, option);
    }
  
    @Override
    public Optional<Long> getChildId(Long inodeId, String name, ReadOption option) {
      return mDelegate.getChildId(inodeId, name, option);
    }
  
    @Override
    public Optional<Long> getChildId(InodeDirectoryView inode, String name, ReadOption option) {
      return mDelegate.getChildId(inode, name, option);
    }
  
    @Override
    public Optional<Inode> getChild(Long inodeId, String name, ReadOption option) {
      return mDelegate.getChild(inodeId, name, option);
    }
  
    @Override
    public Optional<Inode> getChild(InodeDirectoryView inode, String name, ReadOption option) {
      return mDelegate.getChild(inode, name, option);
    }
  
    @Override
    public boolean hasChildren(InodeDirectoryView inode, ReadOption option) {
      return mDelegate.hasChildren(inode, option);
    }
  
    @Override
    @VisibleForTesting
    public Set<EdgeEntry> allEdges() {
      return mDelegate.allEdges();
    }
  
    @Override
    @VisibleForTesting
    public Set<MutableInode<?>> allInodes() {
      return mDelegate.allInodes();
    }
  
    @Override
    public void close() throws IOException {
      mDelegate.close();
    }
  }
  