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/*
 * Copyright (C) 2019 V12 Technology Ltd.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the Server Side Public License, version 1,
 * as published by MongoDB, Inc.
 *
 * 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
 * Server Side Public License for more details.
 *
 * You should have received a copy of the Server Side Public License
 * along with this program.  If not, see 
 * .
 */
package com.fluxtion.ext.streaming.api.log;

import java.io.IOException;
import java.io.Writer;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Simple writer implementation of LogService.
 *
 * @author V12 Technology Ltd.
 */
public class WriterLogProvider implements LogService {

    private boolean logPrefix = true;
    private final Writer writer;

    public WriterLogProvider(Writer writer) {
        this.writer = writer;
    }

    public WriterLogProvider logPrefix(boolean logPrefix) {
        this.logPrefix = logPrefix;
        return this;
    }

    @Override
    public void trace(CharSequence msg) {
        log("[TRACE] ", msg);
    }

    @Override
    public void debug(CharSequence msg) {
        log("[DEBUG] ", msg);
    }

    @Override
    public void info(CharSequence msg) {
        log("[INFO] ", msg);
    }

    @Override
    public void warn(CharSequence msg) {
        log("[WARN] ", msg);
    }

    @Override
    public void error(CharSequence msg) {
        log("[ERROR] ", msg);
    }

    @Override
    public void fatal(CharSequence msg) {
        log("[FATAL] ", msg);
    }

    private void log(CharSequence prefix, CharSequence msg) {
        try {
            if (logPrefix) {
                writer.append(prefix);
            }
            writer.append(msg);
            writer.append('\n');
        } catch (IOException ex) {
            Logger.getLogger(WriterLogProvider.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

}