/*
 * Copyright 2021 The Dapr Authors
 * Licensed 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 io.dapr.client.domain;

import java.util.Collections;
import java.util.List;
import java.util.Map;

/**
 * A class to represent request for transactional state.
 * @param <T> Type of state value in TransactionalStateOperation
 */
public class TransactionalStateRequest<T> {

  /**
   * Transactional operations list.
   */
  private final List<TransactionalStateOperation<T>> operations;

  /**
   * Metadata used for transactional operations.
   */
  private final Map<String, String> metadata;

  /**
   * Constructor to create immutable transactional state request object.
   * @param operations  List of operations to be performed.
   * @param metadata    Metadata used for transactional operations.
   */
  public TransactionalStateRequest(List<TransactionalStateOperation<T>> operations, Map<String, String> metadata) {
    this.operations = operations == null ? null : Collections.unmodifiableList(operations);
    this.metadata = metadata == null ? null : Collections.unmodifiableMap(metadata);
  }

  public List<TransactionalStateOperation<T>> getOperations() {
    return operations;
  }

  public Map<String, String> getMetadata() {
    return metadata;
  }
}
