/*-
 * ============LICENSE_START=======================================================
 * ONAP : APP-C
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property.  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.
 * ============LICENSE_END=========================================================
 */

package org.onap.appc.ccadaptor;

import java.io.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;


public class DebugLog
{
  private static String fileName = "/tmp/rt.log";

  public static void main (String args[])
  {
    DebugLog debugLog = new DebugLog();
    debugLog.printAriDebug("DebugLog", "The Message");
  }

  public static void printAriDebug(String fn, String messg)
  {
    String logMessg = getDateTime() +" " +fn +" " + messg;
    appendToFile(logMessg +"\n");

  }

  public static void printRTAriDebug(String fn, String messg)
  {
    // System.out.println (getDateTime() +" " +fn +" " + messg);
    String logMessg = getDateTime() +" " +fn +" " + messg;
    appendToFile(logMessg +"\n");
  }
  public static String getDateTime()
  {
    DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
    // DateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");
    Date date = new Date();
    return dateFormat.format(date);
  }

  public static void appendToFile (String dataToWrite)
  {
    String fn = "DebugLog.appendToFile";
    try
    {
      // First check to see if a file 'fileName' exist, if it does
      // write to it. If it does not exist, don't write to it.
      File tmpFile = new File(fileName);
      if (tmpFile.exists())
      {
        BufferedWriter out = new BufferedWriter(new FileWriter(fileName, true));
        out.write(dataToWrite);
        out.close();
      }
    }
    catch (IOException e)
    {
      DebugLog.printRTAriDebug (fn, "writeToFile() exception: " + e);
      //System.err.println("writeToFile() exception: " + e);
      e.printStackTrace();
    }
  }

  public void outputStackTrace(Exception e)
  {
    String fn = "DebugLog.outputStackTrace";
    StringWriter sw = new StringWriter();
    e.printStackTrace(new PrintWriter(sw));
    String stackTrace = sw.toString();
    DebugLog.printRTAriDebug(fn, "Stack trace::: "+stackTrace);
  }

  public static String getStackTraceString(Exception e)
  {
    String fn = "DebugLog.outputStackTrace";
    StringWriter sw = new StringWriter();
    e.printStackTrace(new PrintWriter(sw));
    String stackTrace = sw.toString();
    return(stackTrace);
  }

}