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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  package org.apache.maven.wrapper.cli;
20  
21  import java.util.ArrayList;
22  import java.util.List;
23  
24  /**
25   * Parsed command line option.
26   */
27  public class ParsedCommandLineOption {
28      private final List<String> values = new ArrayList<>();
29  
30      public String getValue() {
31          if (!hasValue()) {
32              throw new IllegalStateException("Option does not have any value.");
33          }
34          if (values.size() > 1) {
35              throw new IllegalStateException("Option has multiple values.");
36          }
37          return values.get(0);
38      }
39  
40      public List<String> getValues() {
41          return values;
42      }
43  
44      public void addArgument(String argument) {
45          values.add(argument);
46      }
47  
48      public boolean hasValue() {
49          return !values.isEmpty();
50      }
51  }