/**
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.request;

import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

import org.apache.hadoop.ozone.OzoneConsts;
import org.apache.hadoop.ozone.audit.AuditAction;
import org.apache.hadoop.ozone.audit.AuditMessage;
import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos
    .KeyArgs;
import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos
    .UserInfo;

/**
 * Interface for OM Requests to convert to audit objects.
 */
public interface RequestAuditor {

  /**
   * Build AuditMessage.
   * @param op
   * @param auditMap
   * @param throwable
   * @param userInfo
   * @return
   */
  AuditMessage buildAuditMessage(AuditAction op,
      Map<String, String> auditMap, Throwable throwable, UserInfo userInfo);

  /**
   * Build auditMap with specified volume.
   * @param volume
   * @return auditMap.
   */
  Map<String, String> buildVolumeAuditMap(String volume);

  /**
   * Build auditMap for KeyArgs.
   * @param keyArgs
   */
  default Map<String, String> buildKeyArgsAuditMap(KeyArgs keyArgs) {

    if (keyArgs == null) {
      return new HashMap<>(0);
    } else {
      Map< String, String > auditMap = new LinkedHashMap<>();
      auditMap.put(OzoneConsts.VOLUME, keyArgs.getVolumeName());
      auditMap.put(OzoneConsts.BUCKET, keyArgs.getBucketName());
      auditMap.put(OzoneConsts.KEY, keyArgs.getKeyName());
      auditMap.put(OzoneConsts.DATA_SIZE,
          String.valueOf(keyArgs.getDataSize()));
      auditMap.put(OzoneConsts.REPLICATION_TYPE,
          (keyArgs.getType() != null) ? keyArgs.getType().name() : null);
      auditMap.put(OzoneConsts.REPLICATION_FACTOR,
          (keyArgs.getFactor() != null) ? keyArgs.getFactor().name() : null);
      auditMap.put(OzoneConsts.KEY_LOCATION_INFO,
          (keyArgs.getKeyLocationsList() != null) ?
              keyArgs.getKeyLocationsList().toString() : null);
      return auditMap;
    }
  }
}