J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 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 | } |