consolelogger.java

来自「JRemoteControl is a simple Java&#8482 dr」· Java 代码 · 共 75 行

package fildiv.jremcntl.server.gui.core;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.text.SimpleDateFormat;
import java.util.Calendar;

import fildiv.jremcntl.common.core.Logger;

public class ConsoleLogger implements Logger {

	private static final String DATE_FORMAT_NOW = "yyyy-MM-dd HH:mm:ss";

	private static final String INFO = "INFO";

	private static final String WARN = "WARN";

	private static final String ERROR = "ERROR";

	private SimpleDateFormat df = new SimpleDateFormat(DATE_FORMAT_NOW);

	private Calendar c;

	public ConsoleLogger() {
		c = Calendar.getInstance();
	}

	public void error(String msg) {
		format(ERROR, msg);
	}

	public void error(Exception e) {

		String msg = null;
		StringWriter sw = null;
		PrintWriter pw = null;
		
		try {
			sw = new StringWriter();
			pw = new PrintWriter(sw);
		
			e.printStackTrace(pw);
			msg = sw.toString();

			format(ERROR, msg);

		} finally {
			try {
				if (pw != null)
					pw.close();
				if (sw != null)
					sw.close();
			} catch (IOException ignore) {
			}
		}
	}

	public void info(String msg) {
		format(INFO, msg);
	}

	public void warning(String msg) {
		format(WARN, msg);
	}

	protected String getLogHead(String type) {
		return "[" + type + "][" + df.format(c.getTime()) + "]";
	}

	protected void format(String type, String message) {
		System.out.println(getLogHead(type) + " - " + message);
	}
}