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130 changes: 130 additions & 0 deletions
130
...rc/main/java/net/thevpc/nuts/runtime/standalone/util/reflect/DefaultConvertersByType.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| package net.thevpc.nuts.runtime.standalone.util.reflect; | ||
|
|
||
| import net.thevpc.nuts.reflect.NReflectCopy; | ||
| import net.thevpc.nuts.reflect.NReflectType; | ||
| import net.thevpc.nuts.util.NEnum; | ||
|
|
||
| import java.lang.reflect.Array; | ||
| import java.lang.reflect.Type; | ||
| import java.util.Collection; | ||
|
|
||
| class DefaultConvertersByType implements NReflectCopy.Converter { | ||
| @Override | ||
| public Object convert(Object value, NReflectType fromType, NReflectType toType, NReflectCopy.Context context) { | ||
| if (value == null) { | ||
| return toType.getDefaultValue(); | ||
| } | ||
| fromType = fromType.getBoxedType().get(); | ||
| toType = toType.getBoxedType().get(); | ||
|
|
||
|
|
||
| Type tojType = toType.getJavaType(); | ||
| if ( | ||
| toType.getName().equals(fromType.getName()) | ||
| || toType.isAssignableFrom(fromType) | ||
| ) { | ||
| // immutable / value objects | ||
| switch (fromType.getName()) { | ||
| case "java.lang.Boolean": | ||
| case "java.lang.Byte": | ||
| case "java.lang.Character": | ||
| case "java.lang.Short": | ||
| case "java.lang.Integer": | ||
| case "java.lang.Long": | ||
| case "java.lang.Float": | ||
| case "java.lang.Double": | ||
| case "java.lang.String": | ||
| return value; | ||
| } | ||
| } | ||
|
|
||
| //fall through | ||
|
|
||
| if (toType.getName().equals("java.lang.String")) { | ||
| return String.valueOf(value); | ||
| }else if (fromType.getName().equals("java.lang.String")) { | ||
| if (tojType instanceof NEnum) { | ||
| return NEnum.parse((Class<? extends NEnum>) tojType, (String) value).get(); | ||
| } | ||
| if (tojType instanceof Enum) { | ||
| return Enum.valueOf((Class<? extends Enum>) tojType, (String) value); | ||
| } | ||
| switch (toType.getName()) { | ||
| case "java.lang.Boolean":return Boolean.parseBoolean((String) value); | ||
| case "java.lang.Character":return ((String) value).charAt(0); | ||
| case "java.lang.Byte":return Byte.parseByte((String) value); | ||
| case "java.lang.Short":return Short.parseShort((String) value); | ||
| case "java.lang.Integer":return Integer.parseInt((String) value); | ||
| case "java.lang.Long":return Long.parseLong((String) value); | ||
| case "java.lang.Float":return Float.parseFloat((String) value); | ||
| case "java.lang.Double":return Double.parseDouble((String) value); | ||
| } | ||
| } else if (context.getReflectRepository().getType(Number.class).isAssignableFrom(fromType)) { | ||
| if (tojType instanceof Enum) { | ||
| return ((Class<? extends Enum>) tojType).getEnumConstants()[((Number) value).intValue()]; | ||
| }else if (tojType instanceof Class && Number.class.isAssignableFrom((Class<?>) tojType)) { | ||
| switch (toType.getName()) { | ||
| case "java.lang.Byte":return ((Number) value).byteValue(); | ||
| case "java.lang.Short":return ((Number) value).shortValue(); | ||
| case "java.lang.Integer":return ((Number) value).intValue(); | ||
| case "java.lang.Long":return ((Number) value).longValue(); | ||
| case "java.lang.Float":return ((Number) value).floatValue(); | ||
| case "java.lang.Double":return ((Number) value).doubleValue(); | ||
| } | ||
| } | ||
| } else if (fromType.isArrayType()) { | ||
| if (toType.isArrayType()) { | ||
| int len = Array.getLength(value); | ||
| Object newArr = Array.newInstance((Class<?>) toType.getJavaType(), len); | ||
| for (int i = 0; i < len; i++) { | ||
| Array.set(newArr, i, Array.get(value, i)); | ||
| } | ||
| return newArr; | ||
| } else if (tojType instanceof Class) { | ||
| Class<?> cTojType = (Class<?>) tojType; | ||
| if (java.util.Collection.class.isAssignableFrom(cTojType)) { | ||
| if (cTojType.equals(java.util.Collection.class)) { | ||
| cTojType = java.util.ArrayList.class; | ||
| } else if (cTojType.equals(java.util.List.class)) { | ||
| cTojType = java.util.ArrayList.class; | ||
| } else if (cTojType.equals(java.util.Set.class)) { | ||
| cTojType = java.util.HashSet.class; | ||
| } | ||
| Collection li = (Collection) context.getReflectRepository().getType(cTojType).newInstance(); | ||
| int len = Array.getLength(value); | ||
| for (int i = 0; i < len; i++) { | ||
| li.add(Array.get(value, i)); | ||
| } | ||
| return li; | ||
| } | ||
| } | ||
| } else if (fromType.getJavaType() instanceof Class && java.util.Collection.class.isAssignableFrom((Class<?>) fromType.getJavaType())) { | ||
| if (toType.isArrayType()) { | ||
| Collection coll = (Collection) value; | ||
| int len = coll.size(); | ||
| Object newArr = Array.newInstance((Class<?>) toType.getJavaType(), len); | ||
| int i=0; | ||
| for (Object o : coll) { | ||
| Array.set(newArr, i++, o); | ||
| } | ||
| return newArr; | ||
| } else if (tojType instanceof Class) { | ||
| Class<?> cTojType = (Class<?>) tojType; | ||
| if (java.util.Collection.class.isAssignableFrom(cTojType)) { | ||
| if (cTojType.equals(java.util.Collection.class)) { | ||
| cTojType = java.util.ArrayList.class; | ||
| } else if (cTojType.equals(java.util.List.class)) { | ||
| cTojType = java.util.ArrayList.class; | ||
| } else if (cTojType.equals(java.util.Set.class)) { | ||
| cTojType = java.util.HashSet.class; | ||
| } | ||
| Collection li = (Collection) context.getReflectRepository().getType(cTojType).newInstance(); | ||
| Collection coll = (Collection) value; | ||
| li.addAll(coll); | ||
| return li; | ||
| } | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
| } |
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