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/*
 * #%L
 * Wisdom-Framework
 * %%
 * Copyright (C) 2013 - 2014 Wisdom Framework
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */
package org.wisdom.validation.hibernate;

import javax.validation.ConstraintViolation;
import javax.validation.Validator;
import javax.validation.executable.ExecutableValidator;
import javax.validation.metadata.BeanDescriptor;
import java.util.Set;

/**
 * A Validator delegating to the Hibernate validator, but wrapping methods triggering classloading to set the TCCL.
 */
public class WrappedValidator implements Validator {

    private final Validator delegate;

    WrappedValidator(Validator delegate) {
        this.delegate = delegate;
    }

    @Override
    public  Set> validate(T t, Class... classes) {
        final ClassLoader original = Thread.currentThread().getContextClassLoader();
        try {
            Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());
            return delegate.validate(t, classes);
        } finally {
            Thread.currentThread().setContextClassLoader(original);
        }
    }

    @Override
    public  Set> validateProperty(T t, String s, Class... classes) {
        return delegate.validateProperty(t, s, classes);
    }

    @Override
    public  Set> validateValue(Class tClass, String s, Object o, Class... classes) {
        return delegate.validateValue(tClass, s, o, classes);
    }

    @Override
    public BeanDescriptor getConstraintsForClass(Class aClass) {
        return delegate.getConstraintsForClass(aClass);
    }

    @Override
    public  T unwrap(Class tClass) {
        return delegate.unwrap(tClass);
    }

    @Override
    public ExecutableValidator forExecutables() {
        return new WrappedExecutableValidator(delegate.forExecutables());
    }
}