| 1 | // |
| 2 | // (c) Copyright, Moebius Solutions, 2002 |
| 3 | // |
| 4 | // All Rights Reserved |
| 5 | // |
| 6 | // This material may be reproduced by or for the U. S. Government |
| 7 | // pursuant to the copyright license under the clause at |
| 8 | // DFARS 252.227-7013 (OCT 1988). |
| 9 | // |
| 10 | /* |
| 11 | * $Id: JavaValuePrinter.java,v 1.1.1.5 2004/05/25 20:23:30 hastings Exp $ |
| 12 | */ |
| 13 | package com.moesol.generator.printer; |
| 14 | |
| 15 | import java.io.*; |
| 16 | import java.lang.reflect.*; |
| 17 | |
| 18 | /** |
| 19 | * Print types out in a manner suitable for Java programs. |
| 20 | */ |
| 21 | public class JavaValuePrinter extends ValuePrinter { |
| 22 | protected JavaValuePrinter() { } |
| 23 | private static JavaValuePrinter instance = new JavaValuePrinter(); |
| 24 | public static JavaValuePrinter getInstance() { |
| 25 | return instance; |
| 26 | } |
| 27 | public void print(Object value, Writer out) throws IOException { |
| 28 | if (value == null) { |
| 29 | out.write("null"); |
| 30 | return; |
| 31 | } |
| 32 | if (value instanceof String) { |
| 33 | printString(value.toString(), out); |
| 34 | return; |
| 35 | } |
| 36 | if (value instanceof Long) { |
| 37 | printLong((Long)value, out); |
| 38 | return; |
| 39 | } |
| 40 | if (value instanceof Integer) { |
| 41 | printInteger((Integer)value, out); |
| 42 | return; |
| 43 | } |
| 44 | if (value instanceof Short) { |
| 45 | printShort((Short)value, out); |
| 46 | return; |
| 47 | } |
| 48 | if (value instanceof Byte) { |
| 49 | printByte((Byte)value, out); |
| 50 | return; |
| 51 | } |
| 52 | if (value instanceof Character) { |
| 53 | printCharacter((Character)value, out); |
| 54 | return; |
| 55 | } |
| 56 | if (value instanceof Float) { |
| 57 | out.write(value.toString()); |
| 58 | return; |
| 59 | } |
| 60 | if (value instanceof Double) { |
| 61 | out.write(value.toString()); |
| 62 | return; |
| 63 | } |
| 64 | if (value instanceof Boolean) { |
| 65 | out.write(value.toString()); |
| 66 | return; |
| 67 | } |
| 68 | if (value.getClass().isArray()) { |
| 69 | printArray(value, out); |
| 70 | return; |
| 71 | } |
| 72 | // Uncle |
| 73 | out.write("null /* unable to print object as value */"); |
| 74 | } |
| 75 | private void printString(String s, Writer out) throws IOException { |
| 76 | out.write('"'); |
| 77 | for (int i = 0; i < s.length(); i++) { |
| 78 | char c = s.charAt(i); |
| 79 | // TODO The escapes below are really for the generator not java. |
| 80 | if (c == '\\') { |
| 81 | out.write("\\\\\\"); |
| 82 | } else if (c == '"') { |
| 83 | out.write('\\'); |
| 84 | } |
| 85 | out.write(c); |
| 86 | } |
| 87 | out.write('"'); |
| 88 | return; |
| 89 | } |
| 90 | private void printLong(Long value, Writer out) throws IOException { |
| 91 | out.write("0x"); |
| 92 | out.write(Long.toHexString(value.longValue())); |
| 93 | out.write("L"); |
| 94 | } |
| 95 | private void printInteger(Integer value, Writer out) throws IOException { |
| 96 | out.write("0x"); |
| 97 | out.write(Integer.toHexString(value.intValue())); |
| 98 | } |
| 99 | private void printShort(Short value, Writer out) throws IOException { |
| 100 | out.write("0x"); |
| 101 | out.write(Integer.toHexString(value.intValue() & 0xFFFF)); |
| 102 | } |
| 103 | private void printByte(Byte value, Writer out) throws IOException { |
| 104 | out.write("0x"); |
| 105 | out.write(Integer.toHexString(value.intValue() & 0xFF)); |
| 106 | } |
| 107 | private void printCharacter(Character value, Writer out) throws IOException { |
| 108 | out.write("'"); |
| 109 | out.write(value.toString()); |
| 110 | out.write("'"); |
| 111 | } |
| 112 | private void printArray(Object value, Writer out) throws IOException { |
| 113 | out.write("{ "); |
| 114 | int length = Array.getLength(value); |
| 115 | if (0 < length) { |
| 116 | print(Array.get(value, 0), out); |
| 117 | } |
| 118 | for (int i = 1; i < length; i++) { |
| 119 | out.write(", "); |
| 120 | print(Array.get(value, i), out); |
| 121 | } |
| 122 | out.write(" }"); |
| 123 | } |
| 124 | } |