package com.hx.auto.manage.xml.scan.util;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.PropertyResourceConfigurer;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.core.io.support.PropertiesLoaderSupport;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;
import java.util.Properties;

@Component
public class ConfigUtil implements ApplicationContextAware {

	private static ApplicationContext applicationContext;

	private static Properties properties = null;

	@Value(Constants.CJH_SCAN_XML_SUPPLY)
	private String isScan;

	@Value(Constants.CJH_PACKAGE_FILE_NAME_URL)
	private String packFileName;

	@Value(Constants.CJH_PACKAGE_MODEL_URL)
	private String modelPack;

	@Value(Constants.CJH_CREATE_XML_URL)
	private String xmlUrl;

	@Value(Constants.CJH_CREATE_DAO_URL)
	private String daoUrl;

	/**
	 * 实现ApplicationContextAware接口的回调方法，设置上下文环境
	 */
	@Override
	public void setApplicationContext(ApplicationContext applicationContext) {
		ConfigUtil.applicationContext = applicationContext;
	}

	/**
	 * 获得spring上下文
	 *
	 * @return ApplicationContext spring上下文
	 */
	public ApplicationContext getApplicationContext() {
		return applicationContext;
	}

	/**
	 * 获取bean
	 *
	 * @param name
	 *            service注解方式name为小驼峰格式
	 * @return Object bean的实例对象
	 */
	public Object getBean(String name) throws BeansException {
		return applicationContext.getBean(name);
	}

	private void initProperties() {

		properties = new Properties();
		try {
			String[] postProcessorNames = applicationContext.getBeanNamesForType(BeanFactoryPostProcessor.class, true,
					true);
			for (String ppName : postProcessorNames) {
				BeanFactoryPostProcessor beanProcessor = applicationContext.getBean(ppName,
						BeanFactoryPostProcessor.class);
				if (beanProcessor instanceof PropertyResourceConfigurer) {
					PropertyResourceConfigurer propertyResourceConfigurer = (PropertyResourceConfigurer) beanProcessor;
					Method mergeProperties = PropertiesLoaderSupport.class.getDeclaredMethod("mergeProperties");
					mergeProperties.setAccessible(true);
					Properties props = (Properties) mergeProperties.invoke(propertyResourceConfigurer);

					// get the method convertProperties
					// in class PropertyResourceConfigurer
					Method convertProperties = PropertyResourceConfigurer.class.getDeclaredMethod("convertProperties",
							Properties.class);
					// convert properties
					convertProperties.setAccessible(true);
					convertProperties.invoke(propertyResourceConfigurer, props);

					properties.putAll(props);
				}
			}

		} catch (Exception e) {
			throw new RuntimeException(e);
		}
	}


	public static Properties getProperties() {
		return properties;
	}

	public static void setProperties(Properties properties) {
		ConfigUtil.properties = properties;
	}

	public String getModelPack() {
		return modelPack;
	}

	public void setModelPack(String modelPack) {
		this.modelPack = modelPack;
	}

	public Boolean getIsScan() {
		return "true".equals(isScan);
	}

	public void setIsScan(String isScan) {
		this.isScan = isScan;
	}

	public String getPackFileName() {
		return packFileName;
	}

	public void setPackFileName(String packFileName) {
		this.packFileName = packFileName;
	}

	public String getXmlUrl() {
		return xmlUrl;
	}

	public void setXmlUrl(String xmlUrl) {
		this.xmlUrl = xmlUrl;
	}

	public String getDaoUrl() {
		return daoUrl;
	}

	public void setDaoUrl(String daoUrl) {
		this.daoUrl = daoUrl;
	}
}