ADF Explorer: Application Module Pool Statistics

It is crtitical to analyze the Application Module pool statistics
for designing better application.

To display statistics related to Application Module pools , call dumpPoolStatistics()
on oracle.jbo.common.ampool.ApplicationPool object.

Create a servlet with the below code and configure the same to web.xml
This servlet will be used to print the AM pool statistics.

a)Create a servlet.

	package com.sai.servlet;

	import java.io.IOException;
	import java.io.PrintWriter;


	import javax.servlet.*;
	import javax.servlet.http.*;


	import java.util.Enumeration;


	import oracle.jbo.common.ampool.ApplicationPool;
	import oracle.jbo.common.ampool.PoolMgr;


	public class AMPoolStatisticsServlet extends HttpServlet {
	private static final String CONTENT_TYPE =
	"text/html; charset=windows-1252";


	public void init(ServletConfig config) throws ServletException {
	super.init(config);
	}


	public void doGet(HttpServletRequest request,
	HttpServletResponse response) throws ServletException,
	IOException {
	response.setContentType(CONTENT_TYPE);
	PrintWriter out = response.getWriter();
	out.println("<html>");
	out.println("<head><title>AM Pool Statistics</title></head>");
	out.println("<body>");
	PoolMgr poolMgr = PoolMgr.getInstance();
	String poolname = request.getParameter("poolname");
	if (poolname == null \|\| poolname.equals("")) {
	Enumeration keys = poolMgr.getResourcePoolKeys();
	if (keys != null) {
	out.println("<h3>List of Active Application Module Pools</h3>");
	out.println("<ul>");
	while (keys.hasMoreElements()) {
	String s = (String)keys.nextElement();
	out.println("<li><code><a href='AMPoolInfo?poolname=" +
	s + "'>" + s + "</a></code></li>");
	}
	out.println("</ul>");
	} else {
	out.println("No pools.");
	}
	} else {
	out.println("<h3>Pool Statistics for Pool '" + poolname +
	"'</h3>");
	out.println("<a href='AMPoolInfo'>Back to Pool List</a>");
	out.println("<hr><blockquote><pre>");
	ApplicationPool pool =
	(ApplicationPool)poolMgr.getResourcePool(poolname);
	pool.dumpPoolStatistics(new PrintWriter(out));
	out.println("</pre></blockquote>");
	}
	out.println("</body></html>");
	out.close();
	}
	}