content: /*
   * 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 com.aliyuncs.fc.model;
  
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * Contains helper methods to build url query string parameters
   */
  public class ListRequestUrlHelper {
  
      public static Map<String, String> buildParams(String prefix, String startKey,
          String nextToken, Integer limit) {
          Map<String, String> queryParams = new HashMap<String, String>();
          if (prefix != null) {
              queryParams.put("prefix", prefix);
          }
  
          if (startKey != null) {
              queryParams.put("startKey", startKey);
          }
  
          if (nextToken != null) {
              queryParams.put("nextToken", nextToken);
          }
  
          if (limit != null) {
              queryParams.put("limit", limit.toString());
          }
  
          return queryParams;
      }
  
      public static Map<String, String> buildListVersionParams(String startKey,
          String nextToken, Integer limit, String direction) {
          Map<String, String> queryParams = new HashMap<String, String>();
  
          if (startKey != null) {
              queryParams.put("startKey", startKey);
          }
  
          if (nextToken != null) {
              queryParams.put("nextToken", nextToken);
          }
  
          if (limit != null) {
              queryParams.put("limit", limit.toString());
          }
  
          if (direction != null) {
              queryParams.put("direction", direction.toString());
          }
          return queryParams;
      }
  
      public static Map<String, String> buildListReservedCapacitiesParams(String nextToken, Integer limit) {
          Map<String, String> queryParams = new HashMap<String, String>();
  
          if (nextToken != null) {
              queryParams.put("nextToken", nextToken);
          }
  
          if (limit != null) {
              queryParams.put("limit", limit.toString());
          }
          return queryParams;
      }
  }
  
  