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1   /*
2    * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4    *
5    * This code is free software; you can redistribute it and/or modify it
6    * under the terms of the GNU General Public License version 2 only, as
7    * published by the Free Software Foundation.  Oracle designates this
8    * particular file as subject to the "Classpath" exception as provided
9    * by Oracle in the LICENSE file that accompanied this code.
10   *
11   * This code is distributed in the hope that it will be useful, but WITHOUT
12   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14   * version 2 for more details (a copy is included in the LICENSE file that
15   * accompanied this code).
16   *
17   * You should have received a copy of the GNU General Public License version
18   * 2 along with this work; if not, write to the Free Software Foundation,
19   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20   *
21   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22   * or visit www.oracle.com if you need additional information or have any
23   * questions.
24   */
25  
26  package sun.tools.jstat;
27  
28  import java.util.*;
29  import sun.jvmstat.monitor.MonitorException;
30  
31  /**
32   * A class for describing the output format specified by a command
33   * line option that was parsed from an option description file.
34   *
35   * @author Brian Doherty
36   * @since 1.5
37   */
38  public class OptionFormat {
39      protected String name;
40      protected List<OptionFormat> children;
41  
42      public OptionFormat(String name) {
43          this.name = name;
44          this.children = new ArrayList<OptionFormat>();
45      }
46  
47      public boolean equals(Object o) {
48          if (o == this) {
49              return true;
50          }
51          if (!(o instanceof OptionFormat)) {
52              return false;
53          }
54          OptionFormat of = (OptionFormat)o;
55          return (this.name.compareTo(of.name) == 0);
56      }
57  
58      public int hashCode() {
59        return name.hashCode();
60      }
61  
62      public void addSubFormat(OptionFormat f) {
63          children.add(f);
64      }
65  
66      public OptionFormat getSubFormat(int index) {
67          return children.get(index);
68      }
69  
70      public void insertSubFormat(int index, OptionFormat f) {
71          children.add(index, f);
72      }
73  
74      public String getName() {
75          return name;
76      }
77  
78      public void apply(Closure c) throws MonitorException {
79  
80        for (Iterator i = children.iterator(); i.hasNext(); /* empty */) {
81            OptionFormat o = (OptionFormat)i.next();
82            c.visit(o, i.hasNext());
83        }
84  
85        for (Iterator i = children.iterator(); i.hasNext(); /* empty */) {
86            OptionFormat o = (OptionFormat)i.next();
87            o.apply(c);
88        }
89      }
90  
91      public void printFormat() {
92          printFormat(0);
93      }
94  
95      public void printFormat(int indentLevel) {
96          String indentAmount = "  ";
97          StringBuilder indent = new StringBuilder("");
98  
99          for (int j = 0; j < indentLevel; j++) {
100             indent.append(indentAmount);
101         }
102         System.out.println(indent + name + " {");
103 
104         // iterate over all children and call their printFormat() methods
105         for (OptionFormat of : children) {
106             of.printFormat(indentLevel+1);
107         }
108         System.out.println(indent + "}");
109     }
110 }