create new logfile with some initial text in logback

Condemned Cod answered on February 5, 2021 Popularity 6/10 Helpfulness 1/10

answer create new logfile with some initial text in logback

create new logfile with some initial text in logback

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public class FileAppenderWithHeader extends FileAppender {

    private String header;

    public String getHeader() {
        return header;
    }

    public void setHeader(String header) {
        this.header = header;
    }

    @Override
    public void openFile(String fileName) throws IOException {
        super.openFile(fileName);
        File activeFile = new File(getFile());
        if (activeFile.exists() && activeFile.isFile() && activeFile.length() == 0) {
            write((header + "\n").getBytes());
        }
    }

    private void write(byte[] byteArray) throws IOException {
        if (byteArray == null || byteArray.length == 0)
            return;

        lock.lock();
        try {
            super.getOutputStream().write(byteArray);
            if (super.isImmediateFlush()) {
                super.getOutputStream().flush();
            }
        } finally {
            lock.unlock();
        }
    }
}

Popularity 6/10 Helpfulness 1/10 Language whatever

Source: stackoverflow.com

Tags: logback logfile text whatever

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Contributed on Feb 05 2021

Condemned Cod

0 Answers Avg Quality 2/10

create new logfile with some initial text in logback

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create new logfile with some initial text in logback

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