| 1 | /* |
| 2 | @license.text@ |
| 3 | */ |
| 4 | package com.hammurapi.convert; |
| 5 | |
| 6 | import java.io.File; |
| 7 | import java.io.FileInputStream; |
| 8 | import java.io.FileReader; |
| 9 | import java.io.InputStream; |
| 10 | import java.io.InputStreamReader; |
| 11 | import java.io.Reader; |
| 12 | import java.lang.reflect.Constructor; |
| 13 | import java.math.BigDecimal; |
| 14 | import java.net.URL; |
| 15 | import java.util.ArrayList; |
| 16 | import java.util.Collection; |
| 17 | import java.util.Collections; |
| 18 | import java.util.List; |
| 19 | import java.util.concurrent.Future; |
| 20 | |
| 21 | import com.hammurapi.common.Context; |
| 22 | |
| 23 | /** |
| 24 | * @author Pavel Vlasov |
| 25 | * @version $Revision: 1.7 $ |
| 26 | */ |
| 27 | public class FoundationAtomicConvertersBundle implements AtomicConvertersBundle { |
| 28 | |
| 29 | private List<AtomicConverter<? extends Object,? extends Object>> converters=new ArrayList<AtomicConverter<? extends Object,? extends Object>>(); |
| 30 | |
| 31 | public Collection<AtomicConverter<? extends Object,? extends Object>> getConverters() { |
| 32 | return Collections.unmodifiableCollection(converters); |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * Creates new composite converter populated by default with some generic converters. |
| 37 | */ |
| 38 | @SuppressWarnings("unchecked") |
| 39 | public FoundationAtomicConvertersBundle() { |
| 40 | addConverter(Number.class, byte.class, "byteValue", null); |
| 41 | addConverter(Number.class, double.class, "doubleValue", null); |
| 42 | addConverter(Number.class, float.class, "floatValue", null); |
| 43 | addConverter(Number.class, int.class, "intValue", null); |
| 44 | addConverter(Number.class, long.class, "longValue", null); |
| 45 | addConverter(Number.class, short.class, "shortValue", null); |
| 46 | |
| 47 | addConverter(Number.class, Byte.class, "byteValue", null); |
| 48 | addConverter(Number.class, Double.class, "doubleValue", null); |
| 49 | addConverter(Number.class, Float.class, "floatValue", null); |
| 50 | addConverter(Number.class, Integer.class, "intValue", null); |
| 51 | addConverter(Number.class, Long.class, "longValue", null); |
| 52 | addConverter(Number.class, Short.class, "shortValue", null); |
| 53 | |
| 54 | addConverter(Boolean.class, boolean.class, "booleanValue", null); |
| 55 | |
| 56 | converters.addAll(ReflectionConverter.discoverConstructorConverters(String.class)); |
| 57 | converters.addAll(ReflectionConverter.discoverConstructorConverters(Integer.class)); |
| 58 | converters.addAll(ReflectionConverter.discoverConstructorConverters(Long.class)); |
| 59 | converters.addAll(ReflectionConverter.discoverConstructorConverters(Double.class)); |
| 60 | converters.addAll(ReflectionConverter.discoverConstructorConverters(Float.class)); |
| 61 | converters.addAll(ReflectionConverter.discoverConstructorConverters(Byte.class)); |
| 62 | converters.addAll(ReflectionConverter.discoverConstructorConverters(Short.class)); |
| 63 | converters.addAll(ReflectionConverter.discoverConstructorConverters(BigDecimal.class)); |
| 64 | |
| 65 | try { |
| 66 | addConverter(File.class, Reader.class, null, FileReader.class.getConstructor(File.class)); |
| 67 | addConverter(File.class, InputStream.class, null, FileInputStream.class.getConstructor(File.class)); |
| 68 | addConverter(InputStream.class, Reader.class, null, InputStreamReader.class.getConstructor(InputStream.class)); |
| 69 | addConverter(URL.class, InputStream.class, "openStream", null); |
| 70 | } catch (SecurityException e) { |
| 71 | throw new ConversionException(e); |
| 72 | } catch (NoSuchMethodException e) { |
| 73 | throw new ConversionException(e); |
| 74 | } |
| 75 | |
| 76 | converters.add(new AtomicConverterBase(String.class, boolean.class) { |
| 77 | |
| 78 | public Object convert(Object source, Converter master, Context context, ClassLoader classLoader) { |
| 79 | if (source==null) { |
| 80 | return Boolean.FALSE; |
| 81 | } |
| 82 | |
| 83 | String str = ((String) source).trim(); |
| 84 | if (str.length()==0 || "no".equalsIgnoreCase(str) || "false".equalsIgnoreCase(str) || "0".equals(source) || "".equals(source)) { |
| 85 | return Boolean.FALSE; |
| 86 | } else if ("yes".equalsIgnoreCase(str) || "true".equalsIgnoreCase(str) || "1".equals(source) || "on".equals(source)) { |
| 87 | return Boolean.TRUE; |
| 88 | } |
| 89 | |
| 90 | return null; |
| 91 | } |
| 92 | |
| 93 | }); |
| 94 | |
| 95 | converters.add(new AtomicConverterBase<String,Class>(String.class, Class.class) { |
| 96 | |
| 97 | public Class convert(String source, Converter master, Context context, ClassLoader classLoader) { |
| 98 | if (source==null) { |
| 99 | return null; |
| 100 | } |
| 101 | |
| 102 | try { |
| 103 | return classLoader.loadClass(source.trim()); |
| 104 | } catch (ClassNotFoundException e) { |
| 105 | throw new ConversionException(e); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | }); |
| 110 | |
| 111 | converters.add(new AtomicConverterBase(String.class, byte.class) { |
| 112 | |
| 113 | public Object convert(Object source, Converter master, Context context, ClassLoader classLoader) { |
| 114 | return new Byte((String) source); |
| 115 | } |
| 116 | |
| 117 | }); |
| 118 | |
| 119 | converters.add(new AtomicConverterBase(String.class, double.class) { |
| 120 | |
| 121 | public Object convert(Object source, Converter master, Context context, ClassLoader classLoader) { |
| 122 | return new Double((String) source); |
| 123 | } |
| 124 | |
| 125 | }); |
| 126 | |
| 127 | converters.add(new AtomicConverterBase(String.class, float.class) { |
| 128 | |
| 129 | public Object convert(Object source, Converter master, Context context, ClassLoader classLoader) { |
| 130 | return new Float((String) source); |
| 131 | } |
| 132 | |
| 133 | }); |
| 134 | |
| 135 | |
| 136 | converters.add(new AtomicConverterBase(String.class, int.class) { |
| 137 | |
| 138 | public Object convert(Object source, Converter master, Context context, ClassLoader classLoader) { |
| 139 | return new Integer((String) source); |
| 140 | } |
| 141 | |
| 142 | }); |
| 143 | |
| 144 | |
| 145 | converters.add(new AtomicConverterBase(String.class, long.class) { |
| 146 | |
| 147 | public Object convert(Object source, Converter master, Context context, ClassLoader classLoader) { |
| 148 | return new Long((String) source); |
| 149 | } |
| 150 | |
| 151 | }); |
| 152 | |
| 153 | |
| 154 | converters.add(new AtomicConverterBase(String.class, short.class) { |
| 155 | |
| 156 | public Object convert(Object source, Converter master, Context context, ClassLoader classLoader) { |
| 157 | return new Short((String) source); |
| 158 | } |
| 159 | |
| 160 | }); |
| 161 | |
| 162 | converters.add(new AtomicConverterBase(String.class, Class.class) { |
| 163 | |
| 164 | public Object convert(Object source, Converter master, Context context, ClassLoader classLoader) { |
| 165 | try { |
| 166 | return Class.forName((String) source); |
| 167 | } catch (ClassNotFoundException e) { |
| 168 | throw new ConversionException(e); |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | }); |
| 173 | |
| 174 | } |
| 175 | |
| 176 | private <S, T> void addConverter(Class<S> source, Class<T> target, String accessor, Constructor<? extends T> constructor) { |
| 177 | try { |
| 178 | converters.add(new ReflectionConverter<S, T>(accessor==null ? null : source.getMethod(accessor), constructor)); |
| 179 | } catch (Exception e) { |
| 180 | throw new ConversionException(e); |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | } |