/**************************************************************
 * 
 * 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 java.io.FileWriter;
import java.io.IOException;
import share.LogWriter;

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

public class FileLogWriter extends PrintWriter implements LogWriter {

    
    HashMap mFileWriters = null;
    boolean logging = false;
    share.DescEntry entry = null;
    share.Watcher ow = null;
   
    public FileLogWriter() {
        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 logging) {
         this.logging = logging;
         this.entry = entry;
         return true;
    }
    
    
    public void addFileLog(String filePath){               
        try{
            if(mFileWriters == null)
                mFileWriters = new HashMap();            
            mFileWriters.put(filePath, new FileWriter(filePath));        
        }catch(IOException e ){
            e.printStackTrace(this);
        }            
    }
    
    
    public void removeFileLog(String filePath){               
        if(filePath != null)
            mFileWriters.remove(filePath);        
    }
    
    
    public void println(String msg) {
        
        this.ow = (share.Watcher) entry.UserDefinedParams.get("Watcher");
        
        if (ow != null) {
            ow.ping();
        }
        if (logging) {
            
            // logoutput to console
            super.println("LOG> "+msg);
            super.flush();        
            
            //logoutput to file
            if(mFileWriters != null && mFileWriters.size() > 0){
                try{
                    FileWriter fw = null;
                    Iterator iter = mFileWriters.values().iterator();
                    while(iter.hasNext()){
                        fw = (FileWriter) iter.next();
                        fw.write("LOG> " + msg + "\n");
                        fw.flush();
                    }
                }catch(IOException e ){
                    e.printStackTrace(this);
                }
            }                        
        }
    }

    public boolean summary(share.DescEntry entry) {
        String header = "***** State for "+entry.longName+" ******";
        System.out.println(header);
        if (entry.hasErrorMsg) {
            System.out.println(entry.ErrorMsg);
            System.out.println("Whole "+entry.EntryType+": "+entry.State);
        } else {
            System.out.println("Whole "+entry.EntryType+": "+entry.State);
        }
        for (int i=0;i<header.length();i++) {
            System.out.print("*");        
        }
        System.out.println("");
        return true;
    }

    public Object getWatcher() {
        return this.ow;
    }
    
    public void setWatcher(Object watcher) {
        entry.UserDefinedParams.put("Watcher", (share.Watcher) watcher);
    }
    
}