1 | /** |
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2 | * Licensed to the Apache Software Foundation (ASF) under one |
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3 | * or more contributor license agreements. See the NOTICE file |
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4 | * distributed with this work for additional information |
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5 | * regarding copyright ownership. The ASF licenses this file |
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6 | * to you under the Apache License, Version 2.0 (the |
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7 | * "License"); you may not use this file except in compliance |
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8 | * with the License. You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | |
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19 | package org.apache.hadoop.cli.util; |
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20 | |
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21 | import java.util.StringTokenizer; |
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22 | import java.util.regex.Matcher; |
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23 | import java.util.regex.Pattern; |
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24 | |
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25 | /** |
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26 | * Comparator for the Command line tests. |
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27 | * |
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28 | * This comparator searches for the regular expression specified in 'expected' |
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29 | * in the string 'actual' and returns true if the regular expression match is |
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30 | * done |
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31 | * |
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32 | */ |
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33 | public class RegexpComparator extends ComparatorBase { |
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34 | |
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35 | @Override |
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36 | public boolean compare(String actual, String expected) { |
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37 | boolean success = false; |
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38 | Pattern p = Pattern.compile(expected); |
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39 | |
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40 | StringTokenizer tokenizer = new StringTokenizer(actual, "\n\r"); |
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41 | while (tokenizer.hasMoreTokens() && !success) { |
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42 | String actualToken = tokenizer.nextToken(); |
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43 | Matcher m = p.matcher(actualToken); |
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44 | success = m.matches(); |
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45 | } |
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46 | |
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47 | return success; |
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48 | } |
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49 | |
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50 | } |
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