DefaultBeanFactory.java

package org.theonefx.wcframework.ioc;

import java.util.Collection;

import org.theonefx.wcframework.core.exception.BeansException;
import org.theonefx.wcframework.ioc.exception.CannotEnsureBeanException;
import org.theonefx.wcframework.ioc.exception.NoSuchBeanException;

public class DefaultBeanFactory extends AbstractBeanFactory {

	@Override
	public Object getBean(String id) throws BeansException {
		return doGetBean(id, null);
	}

	@Override
	public <T> T getBean(String id, Class<T> requiredType) throws BeansException {
		return doGetBean(id, requiredType);
	}

	@Override
	public boolean containsBean(Class<?> requiredType) {
		return containBeanType(requiredType);
	}

	@Override
	public boolean containsBean(String id) {
		return containsBeanDefinition(id);
	}

	@Override
	public boolean isSingleton(String id) throws NoSuchBeanException {
		return getBeanDefinition(id).isSingleton();
	}

	@Override
	public boolean isPrototype(String id) throws NoSuchBeanException {
		return getBeanDefinition(id).isPrototype();
	}

	@Override
	public boolean isTypeMatch(String id, Class<?> targetType) throws NoSuchBeanException {
		return targetType.isAssignableFrom(getType(id));
	}

	@Override
	public Class<?> getType(String id) {
		return resolveBeanClass(getMergedBeanDefinition(id), id);
	}

	@Override
	public <T> T getBean(Class<T> requiredType) throws BeansException {
		Collection<String> ids = getBeanDefinitionByType(requiredType);
		if (ids == null || ids.size() == 0) {
			throw new NoSuchBeanException("请求的TYPE:" + requiredType.getName());
		} else if (ids.size() > 1) {
			throw new CannotEnsureBeanException("请求的Type有多个Bean,Type:" + requiredType.getName());
		}
		return getBean(ids.iterator().next(), requiredType);
	}
}