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1   /*
2    * Licensed under the Apache License, Version 2.0 (the "License");
3    * you may not use this file except in compliance with the License.
4    * You may obtain a copy of the License at
5    *
6    * http://www.apache.org/licenses/LICENSE-2.0
7    *
8    * Unless required by applicable law or agreed to in writing, software
9    * distributed under the License is distributed on an "AS IS" BASIS,
10   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11   * See the License for the specific language governing permissions and
12   * limitations under the License.
13   *
14   */
15  package org.esigate.util;
16  
17  import java.util.Collection;
18  import java.util.Collections;
19  import java.util.Properties;
20  
21  /**
22   * Array parameter.
23   * 
24   * @author Alexis Thaveau
25   */
26  public class ParameterArray extends Parameter<String[]> {
27  
28      public ParameterArray(String name, String[] defaultValue) {
29          super(name, defaultValue);
30  
31      }
32  
33      public ParameterArray(String name) {
34          super(name);
35      }
36  
37      @Override
38      public String[] getValue(Properties properties) {
39          String[] value;
40          Collection<String> list =
41                  PropertiesUtil.getPropertyValue(properties, getName(), Collections.<String>emptyList());
42          if (list == null || list.isEmpty()) {
43              value = getDefaultValue();
44          } else {
45              value = list.toArray(new String[list.size()]);
46          }
47          return value;
48      }
49  }