/*
 * 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.geode.cache.operations;

import org.apache.geode.cache.Region;

/**
 * Encapsulates an {@link org.apache.geode.cache.operations.OperationContext.OperationCode#PUT}
 * region operation having both key and value objects for for both the pre-operation case and for
 * post-operation updates.
 * 
 * @since GemFire 5.5
 * @deprecated since Geode1.0, use {@link org.apache.geode.security.ResourcePermission} instead
 */
public class PutOperationContext extends KeyValueOperationContext {

  /**
   * Indicates that it is not known whether the operation results in a create or in an update. The
   * authorization callback should explicitly use the {@link Region#containsKey} method to determine
   * it when required.
   */
  public static final byte UNKNOWN = 0;

  /**
   * Indicates that the operation results in a create of the key.
   */
  public static final byte CREATE = 1;

  /**
   * Indicates that the operation results in an update of the key.
   */
  public static final byte UPDATE = 2;

  /**
   * Flag to indicate whether the current operation is a create or update or unknown.
   */
  private byte opType;

  /**
   * Constructor for the operation.
   * 
   * @param key the key for this operation
   * @param value the value for this operation
   * @param isObject true when the value is an object; false when it is a raw byte array
   * @since GemFire 6.5
   */
  public PutOperationContext(Object key, Object value, boolean isObject) {
    super(key, value, isObject);
    this.opType = UNKNOWN;
  }

  /**
   * Constructor for the operation.
   * 
   * @param key the key for this operation
   * @param value the value for this operation
   * @param isObject true when the value is an object; false when it is a raw byte array
   * @param postOperation true if the context is at the time of sending updates
   * @since GemFire 6.5
   */
  public PutOperationContext(Object key, Object value, boolean isObject, boolean postOperation) {
    super(key, value, isObject, postOperation);
    this.opType = UNKNOWN;
  }

  /**
   * Constructor for the operation.
   * 
   * @param key the key for this operation
   * @param value the value for this operation
   * @param isObject true when the value is an object; false when it is a raw byte array
   * @param opType flag to indicate whether the operation is create/update or unknown
   * @param isPostOperation true if the context is at the time of sending updates
   * @since GemFire 6.5
   */
  public PutOperationContext(Object key, Object value, boolean isObject, byte opType,
      boolean isPostOperation) {
    super(key, value, isObject, isPostOperation);
    this.opType = opType;
  }

  /**
   * Return the operation associated with the <code>OperationContext</code> object.
   * 
   * @return <code>OperationCode.PUT</code>.
   */
  @Override
  public OperationCode getOperationCode() {
    return OperationCode.PUT;
  }

  /**
   * Return whether the operation is a create or update or unknown.
   * 
   * The user should check against {@link PutOperationContext#CREATE},
   * {@link PutOperationContext#UPDATE}, {@link PutOperationContext#UNKNOWN}. For the
   * {@link PutOperationContext#UNKNOWN} case, the authorization callback should explicitly invoke
   * {@link Region#containsKey} to determine if it is create or update when required.
   * 
   * @return one of {@link PutOperationContext#CREATE}, {@link PutOperationContext#UPDATE},
   *         {@link PutOperationContext#UNKNOWN}
   */
  public byte getOpType() {
    return this.opType;
  }

}