48 lines
2.2 KiB
Java
48 lines
2.2 KiB
Java
/* Copyright 2010 Abhinav Sarkar <abhinav@abhinavsarkar.net>
|
|
*
|
|
* This file is a part of SpelHelper library.
|
|
*
|
|
* SpelHelper library is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License (GNU LGPL) as
|
|
* published by the Free Software Foundation, either version 3 of the License,
|
|
* or (at your option) any later version.
|
|
*
|
|
* SpelHelper library 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 Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with SpelHelper library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
package net.abhinavsarkar.spelhelper;
|
|
|
|
import java.lang.reflect.Constructor;
|
|
import java.util.Arrays;
|
|
|
|
import org.springframework.expression.AccessException;
|
|
import org.springframework.expression.ConstructorExecutor;
|
|
import org.springframework.expression.ConstructorResolver;
|
|
import org.springframework.expression.EvaluationContext;
|
|
import org.springframework.expression.spel.support.ReflectiveConstructorResolver;
|
|
|
|
final class ImplicitConstructorResolver implements
|
|
ConstructorResolver {
|
|
|
|
private final ReflectiveConstructorResolver delegate = new ReflectiveConstructorResolver();
|
|
|
|
public ConstructorExecutor resolve(final EvaluationContext context,
|
|
final String typeName, final Class<?>[] argumentTypes) throws AccessException {
|
|
try {
|
|
return delegate.resolve(context, typeName, argumentTypes);
|
|
} catch (AccessException ex) {
|
|
Object variable = ((SpelHelper) context.lookupVariable(SpelHelper.CONTEXT_LOOKUP_KEY))
|
|
.lookupImplicitConstructor(typeName + Arrays.toString(argumentTypes));
|
|
if (variable instanceof Constructor<?>) {
|
|
Constructor<?> constructor = (Constructor<?>) variable;
|
|
return delegate.resolve(context, constructor.getDeclaringClass().getName(), argumentTypes);
|
|
}
|
|
return null;
|
|
}
|
|
}
|
|
} |