/*
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* Copyright (c) 2018-2028, DreamLu All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Neither the name of the dreamlu.net developer nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* Author: DreamLu 卢春梦 (596392912@qq.com)
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*/
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package org.springblade.core.log4j2;
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import lombok.extern.slf4j.Slf4j;
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import java.io.PrintStream;
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import java.util.Locale;
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/**
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* 替换 系统 System.err 和 System.out 为log
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*
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* @author L.cm
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*/
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@Slf4j
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public class LogPrintStream extends PrintStream {
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private final boolean error;
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private LogPrintStream(boolean error) {
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super(error ? System.err : System.out);
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this.error = error;
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}
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public static LogPrintStream out() {
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return new LogPrintStream(false);
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}
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public static LogPrintStream err() {
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return new LogPrintStream(true);
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}
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@Override
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public void print(String s) {
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if (error) {
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log.error(s);
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} else {
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log.info(s);
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}
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}
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/**
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* 重写掉它,因为它会打印很多无用的新行
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*/
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@Override
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public void println() {
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}
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@Override
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public void println(String x) {
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if (error) {
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log.error(x);
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} else {
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log.info(x);
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}
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}
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@Override
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public PrintStream printf(String format, Object... args) {
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if (error) {
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log.error(String.format(format, args));
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} else {
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log.info(String.format(format, args));
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}
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return this;
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}
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@Override
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public PrintStream printf(Locale l, String format, Object... args) {
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if (error) {
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log.error(String.format(l, format, args));
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} else {
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log.info(String.format(l, format, args));
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}
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return this;
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}
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}
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