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1   /*
2     Licensed to the Apache Software Foundation (ASF) under one or more
3     contributor license agreements.  See the NOTICE file distributed with
4     this work for additional information regarding copyright ownership.
5     The ASF licenses this file to You under the Apache License, Version 2.0
6     (the "License"); you may not use this file except in compliance with
7     the License.  You may obtain a copy of the License at
8   
9         https://www.apache.org/licenses/LICENSE-2.0
10  
11    Unless required by applicable law or agreed to in writing, software
12    distributed under the License is distributed on an "AS IS" BASIS,
13    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14    See the License for the specific language governing permissions and
15    limitations under the License.
16   */
17  package org.apache.commons.cli.example;
18  
19  import java.util.ArrayList;
20  import java.util.Arrays;
21  import java.util.List;
22  import java.util.function.Function;
23  
24  import org.apache.commons.cli.Option;
25  import org.apache.commons.cli.help.TableDefinition;
26  import org.apache.commons.cli.help.TextStyle;
27  import org.apache.commons.lang3.StringUtils;
28  
29  public class WeirdOptionFormat implements Function<Iterable<Option>, TableDefinition> {
30      private final String[] headers = { "Opt", "Since", "Required", "LongOpt", "Deprecated", "Arg Name", "Type", "Description" };
31  
32      private final List<TextStyle> styles;
33  
34      public WeirdOptionFormat() {
35          styles = new ArrayList<>();
36          final TextStyle.Builder builder = TextStyle.builder();
37          styles.add(builder.setLeftPad(1).setIndent(3).get());
38          styles.add(builder.setLeftPad(5).get());
39          styles.add(builder.get());
40          styles.add(builder.get());
41          styles.add(builder.get());
42          styles.add(builder.get());
43          styles.add(builder.get());
44          styles.add(builder.get());
45      }
46  
47      @Override
48      public TableDefinition apply(final Iterable<Option> options) {
49          final List<List<String>> rows = new ArrayList<>();
50          for (final Option option : options) {
51              final List<String> row = new ArrayList<>();
52              row.add(option.getOpt());
53              row.add(StringUtils.defaultIfEmpty(option.getSince(), "--"));
54              row.add(option.isRequired() ? "T" : "F");
55              row.add(option.getLongOpt());
56              row.add(option.isDeprecated() ? "T" : "F");
57              row.add(option.hasArg() ? option.getArgName() : "--");
58              row.add(option.getType() == null ? "--" : option.getValue().toString());
59              row.add(option.getDescription());
60              rows.add(row);
61          }
62          return TableDefinition.from("", styles, Arrays.asList(headers), rows);
63      }
64  }