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框架配置类
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package com.centit.framework.common;

import com.centit.support.algorithm.NumberBaseOpt;
import com.centit.support.algorithm.StringRegularOpt;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

/**
 * 系统外置目录路径工具类
 *
 * @author sx
 * date 2012-12-7
 */
public class SysParametersUtils {

    private static final Logger logger = LoggerFactory.getLogger(SysParametersUtils.class);

    private static Properties prop;
    private static String APP_HOME ="app.home";

    private static String APPLICATION_CONFIG_FILE_NAME ="/system.properties";
    /**
     * 获取应用的根目录
     *
     * @return String 根目录
     */
    public static String getAppHome() {
        return getStringValue(APP_HOME) ;
    }


    /**
     *  获取应用的临时目录
     *
     * @return String 应用的临时目录
     */
    public static String getTempHome() {
        return getAppHome() + "/temp";
    }

    /**
     * 获取上传文件临时目录
     *
     * @return String 上传文件临时目录
     */
    public static String getUploadTempHome() {
        return getTempHome();
    }

    /**
     * 获取配置目录
     *
     * @return String 配置目录
     */
    public static String getConfigHome() {
        return getAppHome() + "/config";
    }

    /**
     * 获取日志目录
     *
     * @return String 日志目录
     */
    public static String getLogHome() {
        return getAppHome() + "/logs";
    }

    /**
     * 获取上传文件目录
     *
     * @return String 上传文件目录
     */
    public static String getUploadHome() {
        return getAppHome() + "/upload";
    }

    /**
     * 获取索引文件目录
     *
     * @return String 索引文件目录
     */
    public static String getIndexHome() {
        return getAppHome() + "/index";
    }

    /**
     * 公共文件夹
     *
     * @return String 公共文件夹
     */
    public static String getPublicFileHome() {
        return getAppHome() + "/publicfile";
    }

    public static String getStringValue(String key) {
        return loadProperties().getProperty(key);
    }

    public static String getStringValue(String key,String defaultValue) {
        return loadProperties().getProperty(key,defaultValue);
    }

    public static int getIntValue(String key) {
        return Integer.parseInt(loadProperties().getProperty(key));
    }

    public static int getIntValue(String key,int defaultValue) {
       String s = loadProperties().getProperty(key);
       if(StringRegularOpt.isNumber(s))
           return NumberBaseOpt.parseInteger(s,defaultValue);
       return defaultValue;
    }

    public static boolean getBoolean(String key) {
        return Boolean.parseBoolean(getStringValue(key));
    }

    public static boolean getBoolean(String key,boolean defaultValue) {
        String sValue = getStringValue(key);
        return StringUtils.isNotBlank(sValue)?
             Boolean.parseBoolean(sValue):defaultValue;
    }


    public static Properties loadProperties() {
        return loadProperties(false);
    }

    /**
     *读取配置文件信息
     * @param forceReload 是否强制加载
     * @return Properties 配置文件信息
     */
    public static Properties loadProperties(boolean forceReload) {
        if (forceReload || null == prop) {
            prop = new Properties();
            try(InputStream resource = SysParametersUtils
                        .class.getResourceAsStream(APPLICATION_CONFIG_FILE_NAME)){
                //new ClassPathResource("system.properties").getInputStream();
                if(resource==null) {
                    try(InputStream resource2 = ClassLoader.getSystemResourceAsStream(APPLICATION_CONFIG_FILE_NAME)){
                        if(resource2 != null) {
                            prop.load(resource2);
                        }
                    }
                }else {
                    prop.load(resource);
                }
            } catch (IOException e) {
                logger.error("获取系统参数出错！",e);
                //e.printStackTrace();
            }
        }

        return prop;
    }

}