org.springframework.biz.context.AbstractSpringInstanceContext Maven / Gradle / Ivy
/*
* Copyright (c) 2018 (https://github.com/hiwepy).
*
* 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.springframework.biz.context;
import javax.sql.DataSource;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
public class AbstractSpringInstanceContext implements SpringContext {
protected static Logger LOG = LoggerFactory.getLogger(AbstractSpringInstanceContext.class);
private ApplicationContext applicationContext;
public AbstractSpringInstanceContext() {}
@Override
public ApplicationContext getApplicationContext() {
return applicationContext;
}
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.applicationContext = applicationContext;
}
@Override
public T getInstance(Class requiredType) {
//获得首字母小写的类名称如：ApplicationContext 变为 applicationContext
String simpleName = StringUtils.uncapitalize(requiredType.getSimpleName());
//或bean
T bean = getApplicationContext().getBean(simpleName,requiredType);
//没有获得继续处理
if(bean==null){
//获得所有匹配bean类型的名称
String beanNames[] = getApplicationContext().getBeanNamesForType(requiredType);
if (beanNames.length == 0){
return getApplicationContext().getBean(requiredType);
}else{
return getApplicationContext().getBean(beanNames[0],requiredType);
}
}else{
return bean;
}
}
@Override
public Object getInstance(String beanName) {
return getApplicationContext().getBean(beanName);
}
@Override
public DataSource getDataSource(){
return (DataSource) this.getInstance("dataSource");
}
@Override
public DataSource getDataSource(String datasourceName){
return (DataSource) this.getInstance(datasourceName);
}
}