org.jdal.mock.EasyMockReplacer.java Source code

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Here is the source code for org.jdal.mock.EasyMockReplacer.java

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/*
 * Copyright 2008-2011 the original author or authors.
 *
 * 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 org.jdal.mock;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.easymock.EasyMock;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;

/**
 * A BeanFactoryPostProcessor that replaces configured interfaces with 
 * EasyMock Proxys for Testing.
 * 
 * @author Jose Luis Martin
 *
 */
public class EasyMockReplacer implements BeanFactoryPostProcessor {

    /** List of replaced classes */
    private List<Class<?>> replacedClasses = new ArrayList<Class<?>>();
    /** log */
    private Log log = LogFactory.getLog(EasyMockReplacer.class);

    /**
     * PostProcess BeanFactory and replace configured classes wiht 
     * EasyMocks proxys
     * @param factory the Spring factory
     * @throws BeansException if postprocessor fail
     */

    public void postProcessBeanFactory(ConfigurableListableBeanFactory factory) throws BeansException {

        for (Class<?> clazz : replacedClasses) {
            replaceBean(clazz, factory);
        }

    }

    /**
     * Replace Bean definition with a EasyMock Proxy 
     * @param clazz clazz to replace
     * @param factory factory to replace on
     */
    private void replaceBean(Class<?> clazz, ConfigurableListableBeanFactory factory) {

        Object mock = EasyMock.createMock(clazz);
        String[] names = factory.getBeanNamesForType(clazz);
        for (String name : names) {
            log.info("Registering bean " + name + " with mock " + clazz.getName());
            factory.registerSingleton(name, mock);
        }
    }

    /**
     * Add Class to replace with EasyMock proxy
     * @param clazz Class to replace.
     * @return true if replaced
     */
    public boolean add(Class<?> clazz) {
        return replacedClasses.add(clazz);
    }

    /**
     * Remove Class from replaced classes
     * @param clazz Class to remove
     * @return true if removed
     */
    public boolean remove(Class<?> clazz) {
        return replacedClasses.remove(clazz);
    }
}