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 }