content: /*
   * Copyright 2002-2012 Drew Noakes
   *
   *    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.
   *
   * More information about this project is available at:
   *
   *    http://drewnoakes.com/code/exif/
   *    http://code.google.com/p/metadata-extractor/
   */
  
  package com.almalence.util.exifreader.lang;
  
  import com.almalence.util.exifreader.lang.annotations.NotNull;
  
  import java.util.Iterator;
  
  /** @author Drew Noakes http://drewnoakes.com */
  public class StringUtil
  {
      public static String join(@NotNull Iterable<? extends CharSequence> strings, @NotNull String delimiter)
      {
          int capacity = 0;
          int delimLength = delimiter.length();
  
          Iterator<? extends CharSequence> iter = strings.iterator();
          if (iter.hasNext())
              capacity += iter.next().length() + delimLength;
  
          StringBuilder buffer = new StringBuilder(capacity);
          iter = strings.iterator();
          if (iter.hasNext()) {
              buffer.append(iter.next());
              while (iter.hasNext()) {
                  buffer.append(delimiter);
                  buffer.append(iter.next());
              }
          }
          return buffer.toString();
      }
  
      public static <T extends CharSequence> String join(@NotNull T[] strings, @NotNull String delimiter)
      {
          int capacity = 0;
          int delimLength = delimiter.length();
          for (T value : strings)
              capacity += value.length() + delimLength;
  
          StringBuilder buffer = new StringBuilder(capacity);
          boolean first = true;
          for (T value : strings) {
              if (!first) {
                  buffer.append(delimiter);
              } else {
                  first = false;
              }
              buffer.append(value);
          }
          return buffer.toString();
      }
  }
  