| /* |
| * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4965770 4992540 5030716 |
| */ |
| |
| import java.nio.CharBuffer; |
| import java.util.Formatter; |
| import java.util.Formattable; |
| import java.util.Locale; |
| import static java.util.FormattableFlags.*; |
| |
| public class StockName implements Formattable { |
| private String symbol, companyName, frenchCompanyName; |
| |
| public StockName(String symbol, String companyName, |
| String frenchCompanyName) |
| { |
| this.symbol = symbol; |
| this.companyName = companyName; |
| this.frenchCompanyName = frenchCompanyName; |
| } |
| |
| public void formatTo(Formatter fmt, int f, int width, int precision) { |
| StringBuilder sb = new StringBuilder(); |
| |
| // decide form of name |
| String name = companyName; |
| if (fmt.locale().equals(Locale.FRANCE)) |
| name = frenchCompanyName; |
| boolean alternate = (f & ALTERNATE) == ALTERNATE; |
| boolean usesymbol = alternate || (precision != -1 && precision < 10); |
| String out = (usesymbol ? symbol : name); |
| |
| // apply precision |
| if (precision == -1 || out.length() < precision) { |
| // write it all |
| sb.append(out); |
| } else { |
| sb.append(out.substring(0, precision - 1)).append('*'); |
| } |
| |
| // apply width and justification |
| int len = sb.length(); |
| if (len < width) |
| for (int i = 0; i < width - len; i++) |
| if ((f & LEFT_JUSTIFY) == LEFT_JUSTIFY) |
| sb.append(' '); |
| else |
| sb.insert(0, ' '); |
| |
| fmt.format(sb.toString()); |
| } |
| |
| public String toString() { |
| return String.format("%s - %s", symbol, companyName); |
| } |
| |
| public static void main(String [] args) { |
| StockName sn = new StockName("HUGE", "Huge Fruit, Inc.", |
| "Fruit Titanesque, Inc."); |
| CharBuffer cb = CharBuffer.allocate(128); |
| Formatter fmt = new Formatter(cb); |
| |
| fmt.format("%s", sn); // -> "Huge Fruit, Inc." |
| test(cb, "Huge Fruit, Inc."); |
| |
| fmt.format("%s", sn.toString()); // -> "HUGE - Huge Fruit, Inc." |
| test(cb, "HUGE - Huge Fruit, Inc."); |
| |
| fmt.format("%#s", sn); // -> "HUGE" |
| test(cb, "HUGE"); |
| |
| fmt.format("%-10.8s", sn); // -> "HUGE " |
| test(cb, "HUGE "); |
| |
| fmt.format("%.12s", sn); // -> "Huge Fruit,*" |
| test(cb, "Huge Fruit,*"); |
| |
| fmt.format(Locale.FRANCE, "%25s", sn); |
| // -> " Fruit Titanesque, Inc." |
| test(cb, " Fruit Titanesque, Inc."); |
| } |
| |
| private static void test(CharBuffer cb, String exp) { |
| cb.limit(cb.position()); |
| cb.rewind(); |
| if (!cb.toString().equals(exp)) |
| throw new RuntimeException("expect: '" + exp + "'; got: '" |
| + cb.toString() + "'"); |
| cb.clear(); |
| } |
| } |