org.snaker.engine.spring.SpringContext.java Source code

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Here is the source code for org.snaker.engine.spring.SpringContext.java

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/* Copyright 2013-2015 www.snakerflow.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 org.snaker.engine.spring;

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

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.snaker.engine.Context;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.context.ApplicationContext;

/**
 * spring?
 * @author yuqs
 * @since 1.5
 */
public class SpringContext implements Context {
    private static final Logger log = LoggerFactory.getLogger(SpringContext.class);
    /**
     * Spring context
     */
    private ApplicationContext applicationContext;

    private DefaultListableBeanFactory beanFactory;

    /**
     * ?springSpringContext
     * @param ctx 
     */
    public SpringContext(ApplicationContext ctx) {
        this.applicationContext = ctx;
        beanFactory = (DefaultListableBeanFactory) ctx.getAutowireCapableBeanFactory();
    }

    @SuppressWarnings("unchecked")
    public <T> T find(Class<T> clazz) {
        String[] names = applicationContext.getBeanNamesForType(clazz);
        if (names.length > 1 && log.isWarnEnabled()) {
            log.warn("??:" + clazz);
        }

        if (names.length >= 1) {
            return (T) applicationContext.getBean(names[0]);
        }
        return null;
    }

    @SuppressWarnings("unchecked")
    public <T> List<T> findList(Class<T> clazz) {
        String[] names = applicationContext.getBeanNamesForType(clazz);
        List<T> beans = new ArrayList<T>();
        for (String name : names) {
            beans.add((T) applicationContext.getBean(name));
        }
        return beans;
    }

    public <T> T findByName(String name, Class<T> clazz) {
        return applicationContext.getBean(name, clazz);
    }

    /**
     * spring???applicationContext
     */
    public void put(String name, Object object) {
        log.warn("spring???applicationContext");
    }

    /**
     * ?springbean
     */
    public void put(String name, Class<?> clazz) {
        BeanDefinition definition = new RootBeanDefinition(clazz);
        beanFactory.registerBeanDefinition(name, definition);
    }

    /**
     * ??
     */
    public boolean exist(String name) {
        return applicationContext.containsBean(name);
    }
}