com.link_intersystems.lang.reflect.SerializableConstructor.java Source code

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Here is the source code for com.link_intersystems.lang.reflect.SerializableConstructor.java

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/**
 * Copyright 2011 Link Intersystems GmbH <rene.link@link-intersystems.com>
 *
 * 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.
 */
package com.link_intersystems.lang.reflect;

import java.io.Serializable;
import java.lang.reflect.Constructor;
import java.util.Arrays;

import org.apache.commons.lang3.SerializationException;

import com.link_intersystems.lang.Assert;
import com.link_intersystems.lang.ref.AbstractSerializableReference;
import com.link_intersystems.lang.ref.Reference;

/**
 * Represents a {@link Constructor} object {@link Reference} that is
 * {@link Serializable}.
 *
 * @author Ren Link <a
 *         href="mailto:rene.link@link-intersystems.com">[rene.link@link-
 *         intersystems.com]</a>
 *
 * @since 1.0.0.0
 *
 */
class SerializableConstructor extends AbstractSerializableReference<Constructor<?>> {

    /**
     *
     */
    private static final long serialVersionUID = -6636456646515992155L;

    private static class ConstructorSerializationInfo extends MemberSerialization<Constructor<?>> {

        /**
         *
         */
        private static final long serialVersionUID = -8447552263782991338L;
        private Class<?>[] parameterTypes;

        public ConstructorSerializationInfo(Constructor<?> constructor) {
            super(constructor);
            parameterTypes = constructor.getParameterTypes();
        }

        private Class<?>[] getParameterTypes() {
            return parameterTypes;
        }

    }

    /**
     * Constructs a serializable wrapper for the given constructor.
     *
     * @param method
     *            that should be wrapped in a serializable way.
     *
     * @since 1.0.0.0
     */
    public SerializableConstructor(Constructor<?> constructor) {
        super(constructor);
        Assert.notNull("constructor", constructor);
    }

    @Override
    protected Serializable serialize(Constructor<?> nonSerializableObject) {
        ConstructorSerializationInfo constructorSerializationInfo = new ConstructorSerializationInfo(
                nonSerializableObject);
        return constructorSerializationInfo;
    }

    @Override
    protected Constructor<?> deserialize(Serializable restoreInfo) {
        ConstructorSerializationInfo constructorSerializationInfo = (ConstructorSerializationInfo) restoreInfo;
        Class<?> declaringClass = constructorSerializationInfo.getDeclaringClass();
        Class<?>[] parameterTypes = constructorSerializationInfo.getParameterTypes();
        String methodName = constructorSerializationInfo.getMemberName();
        try {
            Constructor<?> constructor = getConstructor(declaringClass, parameterTypes);
            return constructor;
        } catch (NoSuchMethodException e) {
            throw new SerializationException("Unable to restore method " + methodName + " declared at "
                    + declaringClass + " with parameter types " + Arrays.asList(parameterTypes), e);
        }
    }

    protected Constructor<?> getConstructor(Class<?> declaringClass, Class<?>[] parameterTypes)
            throws NoSuchMethodException {
        Constructor<?> constructor = declaringClass.getDeclaredConstructor(parameterTypes);
        return constructor;
    }

}