1 /*

     2  * Copyright 2004 Sun Microsystems, Inc.  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.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /**

    25  * @test

    26  * @bug 4965770 4992540 5030716

    27  * @compile -source 1.5 StockName.java

    28  * @run main StockName

    29  */

    30 

    31 import java.nio.CharBuffer;

    32 import java.util.Formatter;

    33 import java.util.Formattable;

    34 import java.util.Locale;

    35 import static java.util.FormattableFlags.*;

    36 

    37 public class StockName implements Formattable {

    38     private String symbol, companyName, frenchCompanyName;

    39 

    40     public StockName(String symbol, String companyName,

    41                      String frenchCompanyName)

    42     {

    43         this.symbol = symbol;

    44         this.companyName = companyName;

    45         this.frenchCompanyName = frenchCompanyName;

    46     }

    47 

    48     public void formatTo(Formatter fmt, int f, int width, int precision) {

    49         StringBuilder sb = new StringBuilder();

    50 

    51         // decide form of name

    52         String name = companyName;

    53         if (fmt.locale().equals(Locale.FRANCE))

    54             name = frenchCompanyName;

    55         boolean alternate = (f & ALTERNATE) == ALTERNATE;

    56         boolean usesymbol = alternate || (precision != -1 && precision < 10);

    57         String out = (usesymbol ? symbol : name);

    58 

    59         // apply precision

    60         if (precision == -1 || out.length() < precision) {

    61             // write it all

    62             sb.append(out);

    63         } else {

    64             sb.append(out.substring(0, precision - 1)).append('*');

    65         }

    66 

    67         // apply width and justification

    68         int len = sb.length();

    69         if (len < width)

    70             for (int i = 0; i < width - len; i++)

    71                 if ((f & LEFT_JUSTIFY) == LEFT_JUSTIFY)

    72                     sb.append(' ');

    73                 else

    74                     sb.insert(0, ' ');

    75 

    76         fmt.format(sb.toString());

    77     }

    78 

    79     public String toString() {

    80         return String.format("%s - %s", symbol, companyName);

    81     }

    82 

    83     public static void main(String [] args) {

    84         StockName sn = new StockName("HUGE", "Huge Fruit, Inc.",

    85                                      "Fruit Titanesque, Inc.");

    86         CharBuffer cb = CharBuffer.allocate(128);

    87         Formatter fmt = new Formatter(cb);

    88 

    89         fmt.format("%s", sn);            //   -> "Huge Fruit, Inc."

    90         test(cb, "Huge Fruit, Inc.");

    91 

    92         fmt.format("%s", sn.toString()); //   -> "HUGE - Huge Fruit, Inc."

    93         test(cb, "HUGE - Huge Fruit, Inc.");

    94 

    95         fmt.format("%#s", sn);           //   -> "HUGE"

    96         test(cb, "HUGE");

    97 

    98         fmt.format("%-10.8s", sn);       //   -> "HUGE      "

    99         test(cb, "HUGE      ");

   100 

   101         fmt.format("%.12s", sn);         //   -> "Huge Fruit,*"

   102         test(cb, "Huge Fruit,*");

   103 

   104         fmt.format(Locale.FRANCE, "%25s", sn);

   105                                          //   -> "   Fruit Titanesque, Inc."

   106         test(cb, "   Fruit Titanesque, Inc.");

   107     }

   108 

   109     private static void test(CharBuffer cb, String exp) {

   110         cb.limit(cb.position());

   111         cb.rewind();

   112         if (!cb.toString().equals(exp))

   113             throw new RuntimeException("expect: '" + exp + "'; got: '"

   114                                        + cb.toString() + "'");

   115         cb.clear();

   116     }

   117 }