/*
 * 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.hadoop.ozone.om.helpers;

import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.hadoop.crypto.CipherSuite;
import org.apache.hadoop.crypto.CryptoProtocolVersion;
import org.apache.hadoop.hdds.annotation.InterfaceAudience;
import org.apache.hadoop.hdds.annotation.InterfaceStability;

/**
 * A simple class for representing an encryption bucket. Presently an encryption
 * bucket only has a path (the root of the encryption zone), a key name, and a
 * unique id. The id is used to implement batched listing of encryption zones.
 */
@InterfaceAudience.Public
@InterfaceStability.Evolving
public class EncryptionBucketInfo {

  private final CipherSuite suite;
  private final CryptoProtocolVersion version;
  private final String keyName;

  private final long id;
  private final String path;

  public EncryptionBucketInfo(long id, String path, CipherSuite suite,
                        CryptoProtocolVersion version, String keyName) {
    this.id = id;
    this.path = path;
    this.suite = suite;
    this.version = version;
    this.keyName = keyName;
  }

  public long getId() {
    return id;
  }

  public String getPath() {
    return path;
  }

  public CipherSuite getSuite() {
    return suite;
  }

  public CryptoProtocolVersion getVersion() {
    return version;
  }

  public String getKeyName() {
    return keyName;
  }

  @Override
  public int hashCode() {
    return new HashCodeBuilder(13, 31)
        .append(id)
        .append(path)
        .append(suite)
        .append(version)
        .append(keyName).
            toHashCode();
  }

  @Override
  public boolean equals(Object obj) {
    if (obj == null) {
      return false;
    }
    if (obj == this) {
      return true;
    }
    if (obj.getClass() != getClass()) {
      return false;
    }

    EncryptionBucketInfo rhs = (EncryptionBucketInfo) obj;
    return new EqualsBuilder().
        append(id, rhs.id).
        append(path, rhs.path).
        append(suite, rhs.suite).
        append(version, rhs.version).
        append(keyName, rhs.keyName).
        isEquals();
  }

  @Override
  public String toString() {
    return "EncryptionBucketInfo [id=" + id +
        ", path=" + path +
        ", suite=" + suite +
        ", version=" + version +
        ", keyName=" + keyName + "]";
  }
}
