systeminfo.java

为了下东西 随便发了个 datamining 的源代码

/*
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/*
 * Created on 2006/8/26
 *
 * @Author: Xiaojun Chen
 * $Revision$ 1.0
 *
 */

package eti.bi.common.System;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Properties;
import eti.bi.exception.SysException;

public class SystemInfo {
	
	
	public static void load(){
		boolean log = true;
		boolean err = false;
		boolean out = false;
		
		File propertyFile = new File(SysConfig.getSystemHome()+File.separator+"systeminfo.properties");
		if(propertyFile.exists()) {
			try {
				FileInputStream property = new FileInputStream(propertyFile);
				Properties prop = new Properties();
				prop.load(property);
				String temp;
				temp = prop.getProperty("log");
				
				if(temp!=null) {
					if(temp.equalsIgnoreCase("off")) {
						log = false;
					}
				}
				temp = prop.getProperty("systemerror");
				if(temp!=null) {
					if(temp.equalsIgnoreCase("on")) {
						err = true;
					}
				}
				temp = prop.getProperty("systemout");
				if(temp!=null) {
					if(temp.equalsIgnoreCase("on")) {
						out = true;
					}
				}
				
			} catch (FileNotFoundException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		else {
			try {
				propertyFile.createNewFile();
				FileInputStream property = new FileInputStream(propertyFile);
				Properties prop = new Properties();
				prop.load(property);
				prop.setProperty("log", "on");
				prop.setProperty("err", "off");
				prop.setProperty("out", "off");
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
		}
		
		if(log) {
			loadSysLog();
		}
		if(err) {
			setSystemerr();
		}
		if(out) {
			setSystemout();
		}
	}
	
	private static void loadSysLog(){
		try {
			SysLog.initialize();
		} catch (SysException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	private static void setSystemerr() {
		
		//set error
		String errorTempFilePath = SysConfig.getSystemHome()+File.separator+"error"+File.separator+"alphaminer.error";
		File errDic = new File(errorTempFilePath);
		if(!errDic.exists()) {
			try {
				errDic.createNewFile();
			} catch (IOException e) {
				e.printStackTrace();
				SysLog.error("Creating error output file fail!", e);
				return;
			}
		}
		
		try {
			System.setErr(new PrintStream(errDic));
		} catch (IOException e) {
			e.printStackTrace();
			SysLog.error("Setting system error output fail!", e);
		}
	}
	
	private static void setSystemout() {
		
		//		set out
		String outFilePath = SysConfig.getSystemHome()+File.separator+"out"+File.separator+"alphaminer.out";
		File outDic = new File(outFilePath);
		if(!outDic.exists()) {
			try {
				outDic.createNewFile();
			} catch (IOException e) {
				e.printStackTrace();
				SysLog.error("Creating out output file fail!", e);
				return;
			}
		}
		
		try {
			System.setOut(new PrintStream(outDic));
		} catch (IOException e) {
			e.printStackTrace();
			SysLog.error("Setting system out output fail!", e);
		}
	}
	
}