RegexpComparator.java
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上传日期:2018-01-08
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- /**
- * 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 org.apache.hadoop.cli.util;
- import java.util.StringTokenizer;
- import java.util.regex.Matcher;
- import java.util.regex.Pattern;
- /**
- * Comparator for the Command line tests.
- *
- * This comparator searches for the regular expression specified in 'expected'
- * in the string 'actual' and returns true if the regular expression match is
- * done
- *
- */
- public class RegexpComparator extends ComparatorBase {
- @Override
- public boolean compare(String actual, String expected) {
- boolean success = false;
- Pattern p = Pattern.compile(expected);
-
- StringTokenizer tokenizer = new StringTokenizer(actual, "nr");
- while (tokenizer.hasMoreTokens() && !success) {
- String actualToken = tokenizer.nextToken();
- Matcher m = p.matcher(actualToken);
- success = m.matches();
- }
-
- return success;
- }
- }