/**************************************************************
 * 
 * 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 stats;

import share.LogWriter;

import java.io.PrintWriter;
import java.text.DecimalFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;

public class SimpleLogWriter extends PrintWriter implements LogWriter {

    boolean m_bLogging = false;
    share.DescEntry entry = null;
    share.Watcher ow = null;

    public SimpleLogWriter() {
        super(System.out);
        Calendar cal = new GregorianCalendar();
        DecimalFormat dfmt = new DecimalFormat("00");
        super.println("LOG> Log started " +
            dfmt.format(cal.get(Calendar.DAY_OF_MONTH)) + "." +
            dfmt.format(cal.get(Calendar.MONTH)) + "." +
            dfmt.format(cal.get(Calendar.YEAR)) + " - " +
            dfmt.format(cal.get(Calendar.HOUR_OF_DAY)) + ":" +
            dfmt.format(cal.get(Calendar.MINUTE)) + ":" +
            dfmt.format(cal.get(Calendar.SECOND)));
        super.flush();
    }

    public boolean initialize(share.DescEntry _entry, boolean _bLogging) {
        m_bLogging = _bLogging;
        entry = _entry;

        return true;
    }

    public void println(String msg) {
        if ((ow == null) && (entry != null))
        {
            this.ow = (share.Watcher) entry.UserDefinedParams.get("Watcher");
            if (this.ow != null)
            {
                this.ow.ping();
            }
        }
        else
        {
            if (ow != null)
            {
                this.ow.ping();
            }
            else
            {
                // special case: ow == null && entry == null
                System.out.println(msg);
            }
        }

        if (m_bLogging) {
            super.println("LOG> " + msg);
            super.flush();
        }
    // else
    // {
    //     super.println(" ++ " + msg);
    //     super.flush();
    // }
    }

    public boolean summary(share.DescEntry entry) {
        return true;
    }

    public Object getWatcher() {
        return this.ow;
    }

    public void setWatcher(Object watcher)
    {
        if (watcher != null)
        {
            entry.UserDefinedParams.put("Watcher", (share.Watcher) watcher);
        }
    }
}