| 1 | /* |
| 2 | @license.text@ |
| 3 | */ |
| 4 | package com.hammurapi.convert; |
| 5 | |
| 6 | import java.lang.reflect.Method; |
| 7 | import java.util.ArrayList; |
| 8 | import java.util.Collection; |
| 9 | |
| 10 | import com.hammurapi.common.Context; |
| 11 | |
| 12 | |
| 13 | |
| 14 | /** |
| 15 | * @author Pavel Vlasov |
| 16 | */ |
| 17 | public abstract class AbstractReflectiveAtomicConvertersBundle implements AtomicConvertersBundle { |
| 18 | |
| 19 | @SuppressWarnings("unchecked") |
| 20 | @Override |
| 21 | public Collection<AtomicConverter<? extends Object, ? extends Object>> getConverters() { |
| 22 | Collection<AtomicConverter<? extends Object, ? extends Object>> ret = new ArrayList<AtomicConverter<? extends Object,? extends Object>>(); |
| 23 | Z: for (Method m: this.getClass().getMethods()) { |
| 24 | Class<?>[] pta = m.getParameterTypes(); |
| 25 | Class<Object> targetType = (Class<Object>) m.getReturnType(); |
| 26 | if (m.getAnnotation(ConverterMethod.class)!=null && !void.class.equals(targetType) && pta.length>0) { |
| 27 | for (int i=1; i<pta.length; ++i) { |
| 28 | if (!(Context.class.equals(pta[i]) || Converter.class.equals(pta[i]))) { |
| 29 | continue Z; |
| 30 | } |
| 31 | } |
| 32 | final Method converterMethod = m; |
| 33 | Class<Object> sourceType = (Class<Object>) pta[0]; |
| 34 | AtomicConverterBase<Object, Object> converter = new AtomicConverterBase<Object, Object>(sourceType, targetType) { |
| 35 | |
| 36 | @Override |
| 37 | public Object convert(Object source, Converter master, Context context, ClassLoader classLoader) { |
| 38 | try { |
| 39 | Class<?>[] pt = converterMethod.getParameterTypes(); |
| 40 | Object[] args = new Object[pt.length]; |
| 41 | args[0] = source; |
| 42 | for (int i=1; i<pt.length; ++i) { |
| 43 | if (Context.class.equals(pt[i])) { |
| 44 | args[i] = context; |
| 45 | } else if (Converter.class.equals(pt[i])) { |
| 46 | args[i] = master; |
| 47 | } |
| 48 | } |
| 49 | return converterMethod.invoke(AbstractReflectiveAtomicConvertersBundle.this, args); |
| 50 | } catch (Exception e) { |
| 51 | throw new ConversionException(e); |
| 52 | } |
| 53 | } |
| 54 | }; |
| 55 | ret.add(converter); |
| 56 | } |
| 57 | } |
| 58 | return ret; |
| 59 | } |
| 60 | |
| 61 | |
| 62 | } |