/*
 * Copyright (c) 2008-2012, Hazel Bilisim Ltd. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.hazelcast.impl;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Date;
import java.util.logging.Formatter;
import java.util.logging.LogRecord;

public class LogFormatter extends Formatter {

    private static final String LINE_SEPARATOR = System.getProperty("line.separator");

    @Override
    public String format(final LogRecord record) {
        if (record.getLoggerName().equals("com.hazelcast.system")) {
            return record.getMessage() + LINE_SEPARATOR;
        }
        StringBuilder sb = new StringBuilder();
        sb.append(new Date(record.getMillis()))
                .append(' ')
                .append(record.getLevel().getLocalizedName())
                .append(": ")
                .append('[')
                .append(record.getSourceClassName())
                .append("] ")
                .append(record.getMessage())
                .append(LINE_SEPARATOR);
        if (record.getThrown() != null) {
            try {
                StringWriter sw = new StringWriter();
                PrintWriter pw = new PrintWriter(sw);
                record.getThrown().printStackTrace(pw);
                pw.close();
                sb.append(sw.toString());
            } catch (Exception ignored) {
            }
        }
        return sb.toString();
    }
}