/*
* @(#)PhoneServlet.java 1.37 97/05/22
*
* Copyright (c) 1995-1997 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the confidential and proprietary information of Sun
* Microsystems, Inc. ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license agreement you entered into
* with Sun.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
* SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
* SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
* THIS SOFTWARE OR ITS DERIVATIVES.
*
* CopyrightVersion 1.0
*/
import java.lang.*;
import java.io.*;
import java.net.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
/**
* @author Pavani Diwanji
*/
public
class PhoneServlet extends HttpServlet {
private Hashtable phones;
public void init(ServletConfig conf) throws ServletException {
int next;
String name, number;
super.init(conf);
log("PhoneServlet.initialize: enter");
String fileName = getInitParameter("phonelist");
if (fileName == null) {
return;
}
log("PhoneServlet.initialize: filename = " + fileName);
try {
FileInputStream fin = new FileInputStream(fileName);
phones = new Hashtable();
StreamTokenizer st = new StreamTokenizer(fin);
st.eolIsSignificant(true);
st.slashSlashComments(true);
while ((next = st.nextToken()) != StreamTokenizer.TT_EOF) {
switch (next) {
case StreamTokenizer.TT_WORD:
name = st.sval;
next = st.nextToken();
if (next != StreamTokenizer.TT_WORD) {
throw new IOException("No phone for name: " + name);
}
number = st.sval;
break;
default:
continue;
}
phones.put(name, number);
}
} catch (IOException e) {
phones = null;
}
}
public void doGet (HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
{
/*
* If the query is for a specific person then return their
* extension, else dump the whole extensions list
*/
res.setContentType("text/html");
ServletOutputStream out = res.getOutputStream();
String name = req.getParameter("name");
String title = "Phones";
out.println
(" Phone Servlet Output ");
out.println(" PhoneServlet output
");
out.println("");
if (phones == null) {
out.println("No Phone List!");
} else if (name != null) {
String phone = (String) phones.get(name);
if (phone == null) phone = "Not listed";
out.println(name + ": " + phone);
} else
out.println(phones.toString());
out.println("");
}
public String getServletInfo() {
return "This servlet is useful for looking up phone extensions.";
}
}