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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.tephra.zookeeper;

import com.google.common.base.Objects;
import org.apache.twill.zookeeper.NodeChildren;
import org.apache.zookeeper.data.Stat;

import java.util.List;

/**
 * Implementation of the {@link NodeChildren}.
 */
final class BasicNodeChildren implements NodeChildren {

  private final Stat stat;
  private final List children;

  BasicNodeChildren(List children, Stat stat) {
    this.stat = stat;
    this.children = children;
  }

  @Override
  public Stat getStat() {
    return stat;
  }

  @Override
  public List getChildren() {
    return children;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || !(o instanceof NodeChildren)) {
      return false;
    }

    NodeChildren that = (NodeChildren) o;
    return stat.equals(that.getStat()) && children.equals(that.getChildren());
  }

  @Override
  public int hashCode() {
    return Objects.hashCode(children, stat);
  }
}