// @@@ START COPYRIGHT @@@
//
// 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.
//
// @@@ END COPYRIGHT @@@
package org.trafodion.ci;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

import sun.misc.Signal;
import sun.misc.SignalHandler;

public class ConsoleReader
{

   private BufferedReader br=null;
   private InputStream in=null;
   private String line=null;
   String newLine=SessionDefaults.lineSeperator;
   String defaultEncoding="ISO-8859-1";
   SignalHandler CTRLCHandler=null;
   Signal INTSignal=null;
   private boolean queryInterrupted=false;
   private boolean doTrace = Boolean.getBoolean("trafci.enableTrace");
   
   StringBuffer lineBuffer=null;
   private String prompt = SessionDefaults.DEFAULT_SQL_PROMPT;
   private boolean time = false;
   private boolean ampmFmt = false;
   private MaskingThread mt=null;
   WCIUtils wcs=null;

    jline.console.ConsoleReader cr = null;

   ConsoleReader()
   {
      newLine=System.getProperty("line.separator");
      defaultEncoding=System.getProperty("file.encoding");
    
      CTRLCHandler = new MySignalHandlerClass();
      try {
      INTSignal=new Signal("INT");
      } catch (Exception e) {}
   }

   public void setPrompt(String ps, boolean time, boolean ampmFmt)
   {
      this.prompt = ps;
      this.time = time;
      this.ampmFmt = ampmFmt;
   }

   public void setMaskingThread(MaskingThread mt, WCIUtils wcs)
   {
      this.mt = mt;
      this.wcs=wcs;
   }
 
   private class MySignalHandlerClass implements SignalHandler
   {
      public void handle(Signal sig)
      {
         if (null != lineBuffer)  
            lineBuffer.setLength(0);

         queryInterrupted = true;
        
         if (mt!=null)
         {
            mt.stopMasking();
            if (wcs!= null)wcs.enableEcho();
         }

         String timeStamp = "";
         SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss ");
         if (time)
         {
            if (ampmFmt)
               timeStamp = DateFormat.getTimeInstance().format(new Date())+ " ";
            else
               timeStamp = sdf.format(new Date());
         }

         System.out.print("^C"+SessionDefaults.lineSeperator+SessionDefaults.lineSeperator + timeStamp+prompt);
      }
   }

   public void initialize() throws IOException
   {
      this.in=System.in;
        cr = new jline.console.ConsoleReader();
        cr.setPrompt(this.prompt);
   }

   public String getLine() throws IOException, UserInterruption
   {
      next();
      return this.line;
   }

   public String readLine() throws UnsupportedEncodingException, UserInterruption, IOException
   {
/*      StringBuffer lineBuffer=null;
      lineBuffer=new StringBuffer();
	  int i=-1;
            
      try {
         if (CTRLCHandler != null)
         {
            Signal.handle(INTSignal, CTRLCHandler);
         }
      } catch (Exception e) {}

      while (true)
      {
         queryInterrupted = false;
         this.in.mark(1);
         try{
         if ((i = this.in.read()) != -1)
         {
            if (queryInterrupted)
            {
               in.reset();
               throw new UserInterruption();
            }

            lineBuffer.append((char)i);
            line = lineBuffer.toString();
            
            if (!defaultEncoding.equalsIgnoreCase("Cp1047")) 
            {
               byte[] ba=line.getBytes("ISO-8859-1"); // added for nls character support
               line=new String(ba,defaultEncoding);
            }
            
            if (line != null && line.endsWith(newLine))
            {
               return line.substring(0,line.length() - newLine.length());
            }
         }
         }catch (ArrayIndexOutOfBoundsException e)
         	{        	 
        	 	 System.out.println(SessionError.OUT_OF_BOUNDS);
        	 	 
        	 if(doTrace)
        	 {
        		 e.printStackTrace();
        	 }
         	}
                 
         if (queryInterrupted)
         {
            in.reset();
            throw new UserInterruption();

         }
      }
*/
        return cr.readLine();
   }

   public boolean next() throws IOException, UserInterruption
   {
      //line=this.br.readLine();
      line=this.readLine();
      return true;
   }

   public void close() throws IOException
   {
      this.br.close();
      this.br=null;
   }

   public boolean isQueryInterrupted()
   {
      return queryInterrupted;
   }

   public void setQueryInterrupted(boolean queryInterrupted)
   {
      this.queryInterrupted = queryInterrupted;
   }

   public boolean isInteractive()
   {
      int num = 1;
      try
      {
         num = this.in.available();
         //System.out.println("\nNumber of input stream bytes=" + num);
      }
      catch (IOException ioe)
      {
         return false;
      }

      return (num <= 0 ? true:false);
   }

}


@@ -1099,16 +1099,61 @@
 .Date;%0A%0A
+import jline.console.UserInterruptException;%0A
 import s
@@ -3357,16 +3357,57 @@
 rompt);%0A
+        cr.setHandleUserInterrupt(true);%0A
    %7D%0A%0A  
@@ -5065,28 +5065,209 @@
     
-return cr.readLine()
+String readLine = null;%0A        try %7B%0A            readLine = cr.readLine();%0A        %7D catch (UserInterruptException e) %7B%0A            // TODO Auto-generated catch block%0A        %7D%0A        return readLine
 ;%0A  

allow ctrl-c behavior