content: /*
   * Copyright 2014 Agorava
   *
   * 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 org.agorava.utils;
  
  import java.util.Map;
  
  /**
   * @author: Pablo Fernandez
   */
  public class MapUtils {
  
      /* prevent instantiation */
      private MapUtils() {
      }
      
      public static <K, V> String toString(Map<K, V> map) {
          if (map == null) return "";
          if (map.isEmpty()) return "{}";
  
          StringBuilder result = new StringBuilder();
          for (Map.Entry<K, V> entry : map.entrySet()) {
              result.append(String.format(", %s -> %s ", entry.getKey().toString(), entry.getValue().toString()));
          }
          return "{" + result.substring(1) + "}";
      }
  }
  