/** \file
*
* Oct 11, 2004
*
* Copyright Ian Kaplan 2004, Bear Products International
*
* You may use this code for any purpose, without restriction,
* including in proprietary code for which you charge a fee.
* In using this code you acknowledge that you understand its
* function completely and accept all risk in its use.
*
* @author Ian Kaplan, www.bearcave.com, iank@bearcave.com
*/
package example;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Calendar;
import java.util.Enumeration;
import java.util.TimeZone;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* EchoServlet
* Oct 11, 2004
*
* @author Ian Kaplan, www.bearcave.com, iank@bearcave.com
*/
public class EchoServlet extends HttpServlet {
/**
@return a string containing the current date and time, down to the millisecond
The data/time is for the local time zone.
*/
public String getTimeAndDate()
{
StringBuffer buf = new StringBuffer();
Calendar cal = Calendar.getInstance();
int day = cal.get(Calendar.DAY_OF_MONTH);
int month = cal.get(Calendar.MONTH) + 1;
int year = cal.get(Calendar.YEAR);
int hour24 = cal.get(Calendar.HOUR_OF_DAY);
int min = cal.get(Calendar.MINUTE);
int sec = cal.get(Calendar.SECOND );
int msec = cal.get(Calendar.MILLISECOND );
buf.append( month );
buf.append('/');
buf.append( day );
buf.append('/');
buf.append( year );
buf.append(' ');
buf.append( hour24 );
buf.append(':');
buf.append( min );
buf.append(':');
buf.append( sec );
buf.append(':');
buf.append( msec );
return buf.toString();
} // getTimeAndDate
int mCount = 0;
public synchronized int incrCount() {
mCount = mCount + 1;
return mCount;
}
public void init( ServletConfig config )
throws ServletException
{
super.init( config );
String name = getClass().getName();
String timeStamp = getTimeAndDate();
System.out.println( name + "::init() time = " + timeStamp );
Enumeration enum = config.getInitParameterNames();
if ( enum.hasMoreElements() ) {
System.out.println("Config parameters:");
while (enum.hasMoreElements()) {
String s = (String)enum.nextElement();
String v = config.getInitParameter( s );
System.out.println( s + " = " + v );
} // while
}
} // init
public void doPost(HttpServletRequest request,
HttpServletResponse response )
{
int contentLen = request.getContentLength();
if (contentLen > 0) {
String timeStamp = getTimeAndDate();
try {
DataInputStream inStream = new DataInputStream( request.getInputStream() );
byte[] buf = new byte[contentLen];
inStream.readFully( buf );
String inString = new String( buf );
int localCount = incrCount();
inString = localCount + ": " + timeStamp + ' ' + inString;
response.setContentType("text/html");
PrintWriter writer = response.getWriter();
writer.println( inString );
} catch (IOException e) {
System.out.println("EchoServlet::doPost: IOException = " + e.getMessage() );
}
}
} // doPost
private void displayPage( HttpServletResponse response )
{
try {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("");
out.println("");
out.println("EchoServlet");
out.println("");
out.println("");
out.println("
");
out.println("");
out.println("");
out.println("Greetings from the EchoServlet!");
out.println("");
out.println("
");
out.println("");
out.println("");
} catch (IOException e) {
System.out.println("EchoServlet::doGet: IOException = " + e.getMessage() );
}
}
public void doGet(HttpServletRequest request, HttpServletResponse response )
{
displayPage( response );
} // doGet
}