2010-01-29 22:13:57 +00:00
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<%-- $This file is distributed under the terms of the license in /doc/license.txt$ --%>
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<%@ page import="edu.cornell.mannlib.vitro.webapp.controller.Controllers" %>
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<%@ page import="org.apache.log4j.*" %>
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<%@ page import="java.util.*" %>
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<%--
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This JSP will display all the log4j Logger objects, their
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levels and their appenders. The levels of the Logger objects
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can be changed and test messages can be sent.
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Brian Cauros bdc34@cornell.edu
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based on work by Volker Mentzner. --%>
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2011-04-27 20:20:25 +00:00
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<%@taglib prefix="vitro" uri="/WEB-INF/tlds/VitroUtils.tld" %>
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<%@page import="edu.cornell.mannlib.vitro.webapp.auth.requestedAction.usepages.UseMiscellaneousAdminPages" %>
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<% request.setAttribute("requestedActions", new UseMiscellaneousAdminPages()); %>
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<vitro:confirmAuthorization />
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2010-01-29 22:13:57 +00:00
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2010-10-14 19:10:21 +00:00
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<%
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2010-01-29 22:13:57 +00:00
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try {
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String name;
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Level[] levels = new Level[]
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{Level.OFF, Level.FATAL, Level.ERROR, Level.WARN, Level.INFO, Level.DEBUG};
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out.write("<HTML><HEAD><TITLE>log4j configuration</TITLE></HEAD>\r\n");
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out.write("<BODY><H1>log4j</H1>\r\n");
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// handle a request with query
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if( request.getParameterMap().size() > 0){
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if( request.getParameter("doTestMsg") != null){
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//handle test message
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Logger logger = LogManager.getLogger( request.getParameter("logger") );
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Level level = (Level)Level.toLevel( request.getParameter("level"));
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logger.log(level, request.getParameter("msg"));
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out.write("<h3>message sent</h3>");
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} else {
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//handle logging level changes
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Enumeration names = request.getParameterNames();
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while(names.hasMoreElements()){
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String catname = (String)names.nextElement();
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String catval = request.getParameter(catname);
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if( "root".equalsIgnoreCase(catname))
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LogManager.getRootLogger().setLevel((Level)Level.toLevel(catval));
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else
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LogManager.getLogger(catname).setLevel((Level)Level.toLevel(catval));
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}
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}
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}
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out.write("<p>" + notes + "</p>");
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// output category information in a form with a simple table
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out.write("<form name=\"Formular\" ACTION=\""+request.getContextPath()+request.getServletPath()+"\" METHOD=\"POST\">");
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out.write("<table cellpadding=4>\r\n");
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out.write(" <tr>\r\n");
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out.write(" <td><b>Logger</b></td>\r\n");
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out.write(" <td><b>Level</b></td>\r\n");
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out.write(" <td><b>Appender</b></td>\r\n");
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out.write(" </tr>\r\n");
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// output for all Loggers
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List<String> logNames = new LinkedList<String>();
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for(Enumeration en = LogManager.getCurrentLoggers(); en.hasMoreElements() ;){
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logNames.add(((Logger)en.nextElement()).getName());
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}
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Collections.sort(logNames);
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logNames.add(0,"root");
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Logger cat;
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for (String logName : logNames) {
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if( "root".equalsIgnoreCase(logName))
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cat = LogManager.getRootLogger();
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else
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cat = LogManager.getLogger(logName);
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out.write(" <tr>\r\n");
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out.write(" <td>" + cat.getName() + "</td>\r\n");
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out.write(" <td>\r\n");
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out.write(" <select size=1 name=\""+ cat.getName() +"\">");
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for (int i = 0; i < levels.length; i++) {
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if (cat.getEffectiveLevel().toString().equals(levels[i].toString()))
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out.write("<option selected>"+levels[i].toString());
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else
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out.write("<option>"+levels[i].toString());
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}
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out.write("</select>\r\n");
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out.write(" </td>\r\n");
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out.write(" <td>\r\n");
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for( Appender apd : getAllAppenders( cat )){
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name = apd.getName();
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if (name == null)
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name = "<i>(no name)</i>";
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out.write(name);
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if (apd instanceof AppenderSkeleton) {
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try {
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AppenderSkeleton apskel = (AppenderSkeleton)apd;
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out.write(" [" + apskel.getThreshold().toString() + "]");
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} catch (Exception ex) {
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}
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}
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out.write(" ");
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}
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out.write(" </td>\r\n");
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out.write(" </tr>\r\n");
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}
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out.write("</table>\r\n");
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out.write("<input type=submit value=\"Submit changes to logging levels\">");
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2011-02-08 00:15:19 +00:00
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out.write("</form>\n");
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2010-01-29 22:13:57 +00:00
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out.write("</BODY></HTML>\r\n");
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out.flush();
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} catch (Exception ex) {
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throw new Error( ex);
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}
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%>
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<%!
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String notes ="<p>Changing the level of a Logger on this form does not change the levels of that Logger's children."+
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"<p>Example: if you change the level of the Logger edu.cornell.mannlib.utils from ERROR to DEBUG, the " +
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"logging level of edu.cornell.mannlib.utils.StringUtils will not be modified." +
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"<p>Loggers will write message to all of their Appenders; you cannot have a DEBUG level For Logger A, Appender A "+
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" and a WARN level for a Logger A, Appender B.";
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%>
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<%!
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private Collection<Appender> getAllAppenders(Category logger){
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HashSet<Appender> appenders = new HashSet<Appender>();
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Enumeration en = logger.getAllAppenders();
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while( en.hasMoreElements()){
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appenders.add((Appender) en.nextElement());
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}
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if( logger.getParent() != null )
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appenders.addAll( getAllAppenders(logger.getParent()));
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return appenders;
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}
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%>
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