/**
 * Project Name:HSCM File Name:SystemConfig.java Package Name:com.phxl.hscm.common.util Date:2015年6月29日下午5:13:50 Copyright (c) 2015, PHXL All Rights Reserved.
 */

package com.phxl.common.util;

import org.apache.commons.collections.MapUtils;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import java.io.IOException;
import java.util.Map;
import java.util.Properties;
import java.util.TreeMap;


/**
 * 系统配置工具<br/>
 * 加载系统Properties配置文件至内存中<br/>
 * @Date 2015年6月29日 下午5:13:50
 * @author shijingbang
 * @version 1.0
 * @since JDK 1.6
 */
@Component
public class SystemConfig {
	private static final Logger		logger		= LoggerFactory.getLogger(SystemConfig.class);
	private static final Properties	properties	= new Properties();

	@PostConstruct
	public void init() throws IOException {
		PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(this.getClass().getClassLoader());
		//Resource[] resources = resolver.getResources("classpath:**/spring/*.properties");
		Resource[] resources = resolver.getResources("classpath:**/*.properties");
		for (Resource resource : resources) {
			if (logger.isDebugEnabled()) {
				logger.debug("加载Properties配置文件{}", resource.getFilename());
			}
			properties.load(resource.getInputStream());
		}
		if(logger.isDebugEnabled()){
			Map<String, Object> configuration = MapUtils.typedSortedMap(new TreeMap(properties), String.class, Object.class);
			//logger.debug("****************系统配置参数表****************\n{}", JSONUtils.toPrettyJsonLoosely(configuration));
		}
	}

	/**
	 * 根据key找出value值
	 * @param key 键
	 * @return String
	 * @author shijingbang
	 */
	public static String getProperty(String key) {
		return properties.getProperty(key);
	}

	/**
	 * 根据key找出value值.没有找到则返回第二个参数的值
	 * @param key 键
	 * @param defaultValue 默认值
	 * @return String
	 * @author shijingbang
	 */
	public static String getProperty(String key, String defaultValue) {
		return properties.getProperty(key, defaultValue);
	}

	/**
	 * 获取整数参数值
	 * @param key
	 * @return Integer
	 */
	public static Integer getIntProperty(String key){
		String value = properties.getProperty(key);
		if(StringUtils.isNotBlank(value)){
			return Integer.parseInt(value);
		}
		return null;
	}

	/**
	 * 获取整数参数值，必需指定默认值
	 * @param key
	 * @param defaultValue
	 * @return int
	 */
	public static int getIntProperty(String key, Integer defaultValue){
		//LocalAssert.notNull(defaultValue, "defaultValue，不能为空");
		String value = properties.getProperty(key);
		if(StringUtils.isBlank(value)){
			return defaultValue;
		}
		return Integer.parseInt(value);
	}

	/**
	 * 检查是否包含指定key
	 * @param key
	 * @return boolean
	 * @author shijingbang
	 */
	public static boolean containsKey(Object key) {
		return properties.containsKey(key);
	}

	/**
	 * 检查系统环境是否包含指定值
	 * @param value
	 * @return boolean
	 * @author shijingbang
	 */
	public static boolean containsValue(Object value) {
		return properties.containsValue(value);
	}
}