/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The ASF licenses this file to You 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 org.apache.geode.tools.pulse.internal.log;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.logging.Formatter;
import java.util.logging.Handler;
import java.util.logging.LogRecord;

import org.apache.geode.tools.pulse.internal.data.PulseConstants;
import org.apache.geode.tools.pulse.internal.data.Repository;

/**
 * Class MessageFormatter
 * 
 * MessageFormatter is the custom formatter class for formatting the log messages.
 * 
 * @since GemFire version 7.0.1
 */
public class MessageFormatter extends Formatter {

  public MessageFormatter() {
    super();
  }

  @Override
  public String format(LogRecord record) {
    DateFormat df = new SimpleDateFormat(Repository.get().getPulseConfig().getLogDatePattern());
    StringWriter sw = new StringWriter();
    PrintWriter pw = new PrintWriter(sw);

    pw.println();
    pw.print("[");
    pw.print(record.getLevel().getName());
    pw.print(" ");
    pw.print(df.format(new Date(record.getMillis())));
    String threadName = Thread.currentThread().getName();
    if (threadName != null) {
      pw.print(" ");
      pw.print(threadName);
    }
    pw.print(" tid=0x");
    pw.print(Long.toHexString(Thread.currentThread().getId()));
    pw.print("] ");
    pw.print("(msgTID=");
    pw.print(record.getThreadID());

    pw.print(" msgSN=");
    pw.print(record.getSequenceNumber());

    pw.print(") ");

    pw.println("[" + PulseConstants.APP_NAME + "]");

    pw.println("[" + record.getLoggerName() + "]");

    pw.println(record.getMessage());

    if (record.getThrown() != null) {
      record.getThrown().printStackTrace(pw);
    }
    pw.close();
    try {
      sw.close();
    } catch (IOException ignore) {
    }
    String result = sw.toString();
    return result;
  }

  public String getHead(Handler h) {
    return super.getHead(h);
  }

  public String getTail(Handler h) {
    return super.getTail(h);
  }
} // End of Class MessageFormatter