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1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one
3    *  or more contributor license agreements.  See the NOTICE file
4    *  distributed with this work for additional information
5    *  regarding copyright ownership.  The ASF licenses this file
6    *  to you under the Apache License, Version 2.0 (the
7    *  "License"); you may not use this file except in compliance
8    *  with the License.  You may obtain a copy of the License at
9    *  
10   *    http://www.apache.org/licenses/LICENSE-2.0
11   *  
12   *  Unless required by applicable law or agreed to in writing,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License. 
18   *  
19   */
20  package org.apache.mina.http;
21  
22  /**
23   * An utility class for Array manipulations.
24   * 
25   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
26   */
27  public class ArrayUtil {
28      private ArrayUtil() {
29      }
30  
31      /**
32       * Process an array of String and get rid of every Strings after an empty on.
33       * 
34       * @param array The String[] array to process
35       * @param regex unused
36       * @return The resulting String[] which only contains non-empty Strings up to the first emtpy one
37       */
38      public static String[] dropFromEndWhile(String[] array, String regex) {
39          for (int i = array.length - 1; i >= 0; i--) {
40              if (array[i].trim().length() != 0) {
41                  String[] trimmedArray = new String[i + 1];
42                  System.arraycopy(array, 0, trimmedArray, 0, i + 1);
43                  
44                  return trimmedArray;
45              }
46          }
47          
48          return null;
49      }
50  }