java-classic-code/java-shell/ShellLogOutputStream.java

package cn.exlive.monitor.utils;



import org.apache.commons.lang3.SystemUtils;

import java.io.Closeable;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;

/**
 * 收集日志
 *
 * <pre>
 *
 * Created by zhaopx.
 * Date: 2025/6/9
 * Time: 14:06
 * Vendor: exlive.cn
 *
 * </pre>
 *
 * @author zhaopx
 */
public class ShellLogOutputStream extends OutputStream implements Closeable {

    final StringBuffer lines = new StringBuffer();

    /**
     * 系统编码
     */
    Charset charset = SystemUtils.IS_OS_LINUX ? StandardCharsets.UTF_8 : Charset.forName("GBK");

    @Override
    public void write(int b) throws IOException {

    }


    /**
     * write one line
     * @param line one line
     * @return
     * @throws IOException
     */
    public void write(String line) throws IOException {
        lines.append(line);
    }

    @Override
    public void write(byte[] b, int off, int len) throws IOException {
        String line = new String(b, off, len, charset);
        write(line);
    }


    @Override
    public void flush() throws IOException {
    }

    @Override
    public void close() throws IOException {
    }

    @Override
    public String toString() {
        return lines.toString();
    }

    public Charset getCharset() {
        return charset;
    }

    public void setCharset(Charset charset) {
        this.charset = charset;
    }
}