org.force66.beantester.valuegens.InterfaceValueGenerator.java Source code

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Here is the source code for org.force66.beantester.valuegens.InterfaceValueGenerator.java

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/*
 * This software is licensed under the Apache License, Version 2.0
 * (the "License") agreement; 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 org.force66.beantester.valuegens;

import java.lang.reflect.Proxy;

import org.apache.commons.lang3.Validate;
import org.force66.beantester.utils.GenericProxyHandler;

/**
 * Will generate proxy values for interfaces used as properties
 * @author D. Ashmore
 *
 */
public class InterfaceValueGenerator implements ValueGenerator<Object> {

    private Class<?> interfaceType;

    public InterfaceValueGenerator(Class<?> type) {
        Validate.notNull(type, "Null interface type not allowed");
        Validate.isTrue(type.isInterface(), "Provided class must be an interface.  class=%s", type.getName());
        interfaceType = type;
    }

    @Override
    public Object[] makeValues() {
        return new Object[] { Proxy.newProxyInstance(interfaceType.getClassLoader(), new Class[] { interfaceType },
                new GenericProxyHandler(interfaceType)) };
    }

    @Override
    public boolean canGenerate(Class<?> targetClass) {
        if (targetClass == null)
            return false;
        return targetClass.isInterface();
    }

}