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HTMLManagerServlet.javaAPI DocApache Tomcat 6.0.1445085Fri Jul 20 04:20:36 BST 2007org.apache.catalina.manager

HTMLManagerServlet

public final class HTMLManagerServlet extends ManagerServlet
Servlet that enables remote management of the web applications deployed within the same virtual host as this web application is. Normally, this functionality will be protected by a security constraint in the web application deployment descriptor. However, this requirement can be relaxed during testing.

The difference between the ManagerServlet and this Servlet is that this Servlet prints out a HTML interface which makes it easier to administrate.

However if you use a software that parses the output of ManagerServlet you won't be able to upgrade to this Servlet since the output are not in the same format ar from ManagerServlet

author
Bip Thelin
author
Malcolm Edgar
author
Glenn L. Nielsen
version
$Revision: 547077 $, $Date: 2007-06-14 03:55:09 +0200 (jeu., 14 juin 2007) $
see
ManagerServlet

Fields Summary
protected static final String
APPLICATION_MESSAGE
protected static final String
APPLICATION_ERROR
protected String
sessionsListJspPath
protected String
sessionDetailJspPath
private static final String
APPS_HEADER_SECTION
private static final String
APPS_ROW_DETAILS_SECTION
private static final String
MANAGER_APP_ROW_BUTTON_SECTION
private static final String
STARTED_DEPLOYED_APPS_ROW_BUTTON_SECTION
private static final String
STOPPED_DEPLOYED_APPS_ROW_BUTTON_SECTION
private static final String
STARTED_NONDEPLOYED_APPS_ROW_BUTTON_SECTION
private static final String
STOPPED_NONDEPLOYED_APPS_ROW_BUTTON_SECTION
private static final String
DEPLOY_SECTION
private static final String
UPLOAD_SECTION
Constructors Summary
Methods Summary
protected java.lang.StringdeployInternal(java.lang.String config, java.lang.String path, java.lang.String war)
Deploy an application for the specified path from the specified web application archive.

param
config URL of the context configuration file to be deployed
param
path Context path of the application to be deployed
param
war URL of the web application archive to be deployed
return
message String


        StringWriter stringWriter = new StringWriter();
        PrintWriter printWriter = new PrintWriter(stringWriter);

        super.deploy(printWriter, config, path, war, false);

        return stringWriter.toString();
protected voiddisplaySessionDetailPage(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp, java.lang.String path, java.lang.String sessionId)

param
req
param
resp
throws
ServletException
throws
IOException

        Session session = getSessionForPathAndId(path, sessionId);
        //strong>NOTE</strong> - This header will be overridden
        // automatically if a <code>RequestDispatcher.forward()</code> call is
        // ultimately invoked.
        resp.setHeader("Pragma", "No-cache"); // HTTP 1.0
        resp.setHeader("Cache-Control", "no-cache,no-store,max-age=0"); // HTTP 1.1
        resp.setDateHeader("Expires", 0); // 0 means now
        req.setAttribute("currentSession", session);
        getServletContext().getRequestDispatcher(sessionDetailJspPath).include(req, resp);
protected voiddisplaySessionsListPage(java.lang.String path, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)

param
req
param
resp
throws
ServletException
throws
IOException

        List/*<Session>*/ activeSessions = Arrays.asList(getSessionsForPath(path));
        String sortBy = req.getParameter("sort");
        String orderBy = null;
        if (null != sortBy && !"".equals(sortBy.trim())) {
            Comparator comparator = getComparator(sortBy);
            if (comparator != null) {
                orderBy = req.getParameter("order");
                if ("DESC".equalsIgnoreCase(orderBy)) {
                    comparator = new ReverseComparator(comparator);
                    // orderBy = "ASC";
                } else {
                    //orderBy = "DESC";
                }
                try {
					Collections.sort(activeSessions, comparator);
				} catch (IllegalStateException ise) {
					// at least 1 of the sessions is invalidated
					req.setAttribute(APPLICATION_ERROR, "Can't sort session list: one session is invalidated");
				}
            } else {
                log("WARNING: unknown sort order: " + sortBy);
            }
        }
        // keep sort order
        req.setAttribute("sort", sortBy);
        req.setAttribute("order", orderBy);
        req.setAttribute("activeSessions", activeSessions);
        //strong>NOTE</strong> - This header will be overridden
        // automatically if a <code>RequestDispatcher.forward()</code> call is
        // ultimately invoked.
        resp.setHeader("Pragma", "No-cache"); // HTTP 1.0
        resp.setHeader("Cache-Control", "no-cache,no-store,max-age=0"); // HTTP 1.1
        resp.setDateHeader("Expires", 0); // 0 means now
        getServletContext().getRequestDispatcher(sessionsListJspPath).include(req, resp);
public voiddoGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
Process a GET request for the specified resource.

param
request The servlet request we are processing
param
response The servlet response we are creating
exception
IOException if an input/output error occurs
exception
ServletException if a servlet-specified error occurs


    // --------------------------------------------------------- Public Methods

                                               
       
                       
           

        // Identify the request parameters that we need
        String command = request.getPathInfo();

        String path = request.getParameter("path");
        String deployPath = request.getParameter("deployPath");
        String deployConfig = request.getParameter("deployConfig");
        String deployWar = request.getParameter("deployWar");

        // Prepare our output writer to generate the response message
        response.setContentType("text/html; charset=" + Constants.CHARSET);

        String message = "";
        // Process the requested command
        if (command == null || command.equals("/")) {
        } else if (command.equals("/deploy")) {
            message = deployInternal(deployConfig, deployPath, deployWar);
        } else if (command.equals("/list")) {
        } else if (command.equals("/reload")) {
            message = reload(path);
        } else if (command.equals("/undeploy")) {
            message = undeploy(path);
        } else if (command.equals("/expire")) {
            message = expireSessions(path, request);
        } else if (command.equals("/sessions")) {
            try {
                doSessions(path, request, response);
                return;
            } catch (Exception e) {
                log("HTMLManagerServlet.sessions[" + path + "]", e);
                message = sm.getString("managerServlet.exception",
                        e.toString());
            }
        } else if (command.equals("/start")) {
            message = start(path);
        } else if (command.equals("/stop")) {
            message = stop(path);
        } else {
            message =
                sm.getString("managerServlet.unknownCommand", command);
        }

        list(request, response, message);
public voiddoPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
Process a POST request for the specified resource.

param
request The servlet request we are processing
param
response The servlet response we are creating
exception
IOException if an input/output error occurs
exception
ServletException if a servlet-specified error occurs


        // Identify the request parameters that we need
        String command = request.getPathInfo();

        if (command == null || !command.equals("/upload")) {
            doGet(request,response);
            return;
        }

        // Prepare our output writer to generate the response message
        response.setContentType("text/html; charset=" + Constants.CHARSET);

        String message = "";

        // Create a new file upload handler
        DiskFileUpload upload = new DiskFileUpload();

        // Get the tempdir
        File tempdir = (File) getServletContext().getAttribute
            ("javax.servlet.context.tempdir");
        // Set upload parameters
        upload.setSizeMax(-1);
        upload.setRepositoryPath(tempdir.getCanonicalPath());
    
        // Parse the request
        String basename = null;
        String war = null;
        FileItem warUpload = null;
        try {
            List items = upload.parseRequest(request);
        
            // Process the uploaded fields
            Iterator iter = items.iterator();
            while (iter.hasNext()) {
                FileItem item = (FileItem) iter.next();
        
                if (!item.isFormField()) {
                    if (item.getFieldName().equals("deployWar") &&
                        warUpload == null) {
                        warUpload = item;
                    } else {
                        item.delete();
                    }
                }
            }
            while (true) {
                if (warUpload == null) {
                    message = sm.getString
                        ("htmlManagerServlet.deployUploadNoFile");
                    break;
                }
                war = warUpload.getName();
                if (!war.toLowerCase().endsWith(".war")) {
                    message = sm.getString
                        ("htmlManagerServlet.deployUploadNotWar",war);
                    break;
                }
                // Get the filename if uploaded name includes a path
                if (war.lastIndexOf('\\") >= 0) {
                    war = war.substring(war.lastIndexOf('\\") + 1);
                }
                if (war.lastIndexOf('/") >= 0) {
                    war = war.substring(war.lastIndexOf('/") + 1);
                }
                // Identify the appBase of the owning Host of this Context
                // (if any)
                basename = war.substring(0, war.toLowerCase().indexOf(".war"));
                File file = new File(getAppBase(), war);
                if (file.exists()) {
                    message = sm.getString
                        ("htmlManagerServlet.deployUploadWarExists",war);
                    break;
                }
                String path = null;
                if (basename.equals("ROOT")) {
                    path = "";
                } else {
                    path = "/" + basename;
                }

                if (!isServiced(path)) {
                    addServiced(path);
                    try {
                        warUpload.write(file);
                        // Perform new deployment
                        check(path);
                    } finally {
                        removeServiced(path);
                    }
                }
                break;
            }
        } catch(Exception e) {
            message = sm.getString
                ("htmlManagerServlet.deployUploadFail", e.getMessage());
            log(message, e);
        } finally {
            if (warUpload != null) {
                warUpload.delete();
            }
            warUpload = null;
        }

        list(request, response, message);
protected voiddoSessions(java.lang.String path, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)

param
req
param
resp
throws
ServletException
throws
IOException

        req.setAttribute("path", path);
        String action = req.getParameter("action");
        if (debug >= 1) {
            log("sessions: Session action '" + action + "' for web application at '" + path + "'");
        }
        if ("sessionDetail".equals(action)) {
	        String sessionId = req.getParameter("sessionId");
	        displaySessionDetailPage(req, resp, path, sessionId);
	        return;
        } else if ("invalidateSessions".equals(action)) {
            String[] sessionIds = req.getParameterValues("sessionIds");
            int i = invalidateSessions(path, sessionIds);
            req.setAttribute(APPLICATION_MESSAGE, "" + i + " sessions invalidated.");
        } else if ("removeSessionAttribute".equals(action)) {
            String sessionId = req.getParameter("sessionId");
            String name = req.getParameter("attributeName");
            boolean removed = removeSessionAttribute(path, sessionId, name);
            String outMessage = removed ? "Session attribute '" + name + "' removed." : "Session did not contain any attribute named '" + name + "'";
            req.setAttribute(APPLICATION_MESSAGE, outMessage);
            resp.sendRedirect(resp.encodeRedirectURL(req.getRequestURL().append("?path=").append(path).append("&action=sessionDetail&sessionId=").append(sessionId).toString()));
            return;
        } // else
        displaySessionsListPage(path, req, resp);
protected java.lang.StringexpireSessions(java.lang.String path, javax.servlet.http.HttpServletRequest req)
Extract the expiration request parameter

param
path
param
req

        int idle = -1;
        String idleParam = req.getParameter("idle");
        if (idleParam != null) {
            try {
                idle = Integer.parseInt(idleParam);
            } catch (NumberFormatException e) {
                log("Could not parse idle parameter to an int: " + idleParam);
            }
        }
        return sessions(path, idle);
protected java.util.ComparatorgetComparator(java.lang.String sortBy)

        Comparator comparator = null;
        if ("CreationTime".equalsIgnoreCase(sortBy)) {
            comparator = new BaseSessionComparator() {
                public Comparable getComparableObject(Session session) {
                    return new Date(session.getCreationTime());
                }
            };
        } else if ("id".equalsIgnoreCase(sortBy)) {
            comparator = new BaseSessionComparator() {
                public Comparable getComparableObject(Session session) {
                    return session.getId();
                }
            };
        } else if ("LastAccessedTime".equalsIgnoreCase(sortBy)) {
            comparator = new BaseSessionComparator() {
                public Comparable getComparableObject(Session session) {
                    return new Date(session.getLastAccessedTime());
                }
            };
        } else if ("MaxInactiveInterval".equalsIgnoreCase(sortBy)) {
            comparator = new BaseSessionComparator() {
                public Comparable getComparableObject(Session session) {
                    return new Date(session.getMaxInactiveInterval());
                }
            };
        } else if ("new".equalsIgnoreCase(sortBy)) {
            comparator = new BaseSessionComparator() {
                public Comparable getComparableObject(Session session) {
                    return Boolean.valueOf(session.getSession().isNew());
                }
            };
        } else if ("locale".equalsIgnoreCase(sortBy)) {
            comparator = new BaseSessionComparator() {
                public Comparable getComparableObject(Session session) {
                    return JspHelper.guessDisplayLocaleFromSession(session);
                }
            };
        } else if ("user".equalsIgnoreCase(sortBy)) {
            comparator = new BaseSessionComparator() {
                public Comparable getComparableObject(Session session) {
                    return JspHelper.guessDisplayUserFromSession(session);
                }
            };
        } else if ("UsedTime".equalsIgnoreCase(sortBy)) {
            comparator = new BaseSessionComparator() {
                public Comparable getComparableObject(Session session) {
                    return new Date(SessionUtils.getUsedTimeForSession(session));
                }
            };
        } else if ("InactiveTime".equalsIgnoreCase(sortBy)) {
            comparator = new BaseSessionComparator() {
                public Comparable getComparableObject(Session session) {
                    return new Date(SessionUtils.getInactiveTimeForSession(session));
                }
            };
        } else if ("TTL".equalsIgnoreCase(sortBy)) {
            comparator = new BaseSessionComparator() {
                public Comparable getComparableObject(Session session) {
                    return new Date(SessionUtils.getTTLForSession(session));
                }
            };
        }
        //TODO: complete this to TTL, etc.
        return comparator;
public java.lang.StringgetServletInfo()

see
javax.servlet.Servlet#getServletInfo()

        return "HTMLManagerServlet, Copyright (c) The Apache Software Foundation";
protected org.apache.catalina.SessiongetSessionForPathAndId(java.lang.String path, java.lang.String id)

        if ((path == null) || (!path.startsWith("/") && path.equals(""))) {
            throw new IllegalArgumentException(sm.getString("managerServlet.invalidPath",
                                        RequestUtil.filter(path)));
        }
        String displayPath = path;
        if( path.equals("/") )
            path = "";
        Context context = (Context) host.findChild(path);
        if (null == context) {
            throw new IllegalArgumentException(sm.getString("managerServlet.noContext",
                                        RequestUtil.filter(displayPath)));
        }
        Session session = context.getManager().findSession(id);
        return session;
protected org.apache.catalina.Session[]getSessionsForPath(java.lang.String path)

        if ((path == null) || (!path.startsWith("/") && path.equals(""))) {
            throw new IllegalArgumentException(sm.getString("managerServlet.invalidPath",
                                        RequestUtil.filter(path)));
        }
        String displayPath = path;
        if( path.equals("/") )
            path = "";
        Context context = (Context) host.findChild(path);
        if (null == context) {
            throw new IllegalArgumentException(sm.getString("managerServlet.noContext",
                                        RequestUtil.filter(displayPath)));
        }
        Session[] sessions = context.getManager().findSessions();
        return sessions;
public voidinit()

see
javax.servlet.GenericServlet#init()

        super.init();
public intinvalidateSessions(java.lang.String path, java.lang.String[] sessionIds)
Invalidate HttpSessions

param
sessionIds
return
number of invalidated sessions
throws
IOException

        if (null == sessionIds) {
            return 0;
        }
        int nbAffectedSessions = 0;
        for (int i = 0; i < sessionIds.length; ++i) {
            String sessionId = sessionIds[i];
            HttpSession session = getSessionForPathAndId(path, sessionId).getSession();
            if (null == session) {
                // Shouldn't happen, but let's play nice...
            	if (debug >= 1) {
            		log("WARNING: can't invalidate null session " + sessionId);
            	}
                continue;
            }
            try {
				session.invalidate();
				++nbAffectedSessions;
	            if (debug >= 1) {
	                log("Invalidating session id " + sessionId);
	            }
			} catch (IllegalStateException ise) {
				if (debug >= 1) {
					log("Can't invalidate already invalidated session id " + sessionId);
				}
			}
        }
        return nbAffectedSessions;
public voidlist(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, java.lang.String message)
Render a HTML list of the currently active Contexts in our virtual host, and memory and server status information.

param
request The request
param
response The response
param
message a message to display


        if (debug >= 1)
            log("list: Listing contexts for virtual host '" +
                host.getName() + "'");

        PrintWriter writer = response.getWriter();

        // HTML Header Section
        writer.print(Constants.HTML_HEADER_SECTION);

        // Body Header Section
        Object[] args = new Object[2];
        args[0] = request.getContextPath();
        args[1] = sm.getString("htmlManagerServlet.title");
        writer.print(MessageFormat.format
                     (Constants.BODY_HEADER_SECTION, args));

        // Message Section
        args = new Object[3];
        args[0] = sm.getString("htmlManagerServlet.messageLabel");
        if (message == null || message.length() == 0) {
            args[1] = "OK";
        } else {
            args[1] = RequestUtil.filter(message);
        }
        writer.print(MessageFormat.format(Constants.MESSAGE_SECTION, args));

        // Manager Section
        args = new Object[9];
        args[0] = sm.getString("htmlManagerServlet.manager");
        args[1] = response.encodeURL(request.getContextPath() + "/html/list");
        args[2] = sm.getString("htmlManagerServlet.list");
        args[3] = response.encodeURL
            (request.getContextPath() + "/" +
             sm.getString("htmlManagerServlet.helpHtmlManagerFile"));
        args[4] = sm.getString("htmlManagerServlet.helpHtmlManager");
        args[5] = response.encodeURL
            (request.getContextPath() + "/" +
             sm.getString("htmlManagerServlet.helpManagerFile"));
        args[6] = sm.getString("htmlManagerServlet.helpManager");
        args[7] = response.encodeURL
            (request.getContextPath() + "/status");
        args[8] = sm.getString("statusServlet.title");
        writer.print(MessageFormat.format(Constants.MANAGER_SECTION, args));

        // Apps Header Section
        args = new Object[6];
        args[0] = sm.getString("htmlManagerServlet.appsTitle");
        args[1] = sm.getString("htmlManagerServlet.appsPath");
        args[2] = sm.getString("htmlManagerServlet.appsName");
        args[3] = sm.getString("htmlManagerServlet.appsAvailable");
        args[4] = sm.getString("htmlManagerServlet.appsSessions");
        args[5] = sm.getString("htmlManagerServlet.appsTasks");
        writer.print(MessageFormat.format(APPS_HEADER_SECTION, args));

        // Apps Row Section
        // Create sorted map of deployed applications context paths.
        Container children[] = host.findChildren();
        String contextPaths[] = new String[children.length];
        for (int i = 0; i < children.length; i++)
            contextPaths[i] = children[i].getName();

        TreeMap sortedContextPathsMap = new TreeMap();

        for (int i = 0; i < contextPaths.length; i++) {
            String displayPath = contextPaths[i];
            sortedContextPathsMap.put(displayPath, contextPaths[i]);
        }

        String appsStart = sm.getString("htmlManagerServlet.appsStart");
        String appsStop = sm.getString("htmlManagerServlet.appsStop");
        String appsReload = sm.getString("htmlManagerServlet.appsReload");
        String appsUndeploy = sm.getString("htmlManagerServlet.appsUndeploy");
        String appsExpire = sm.getString("htmlManagerServlet.appsExpire");

        Iterator iterator = sortedContextPathsMap.entrySet().iterator();
        boolean isHighlighted = true;
        boolean isDeployed = true;
        String highlightColor = null;

        while (iterator.hasNext()) {
            // Bugzilla 34818, alternating row colors
            isHighlighted = !isHighlighted;
            if(isHighlighted) {
                highlightColor = "#C3F3C3";
            } else {
                highlightColor = "#FFFFFF";
            }

            Map.Entry entry = (Map.Entry) iterator.next();
            String displayPath = (String) entry.getKey();
            String contextPath = (String) entry.getKey();
            Context context = (Context) host.findChild(contextPath);
            if (displayPath.equals("")) {
                displayPath = "/";
            }

            if (context != null ) {
                try {
                    isDeployed = isDeployed(contextPath);
                } catch (Exception e) {
                    // Assume false on failure for safety
                    isDeployed = false;
                }
                
                args = new Object[6];
                args[0] = displayPath;
                args[1] = context.getDisplayName();
                if (args[1] == null) {
                    args[1] = " ";
                }
                args[2] = new Boolean(context.getAvailable());
                args[3] = response.encodeURL
                    (request.getContextPath() +
                     "/html/sessions?path=" + displayPath);
                if (context.getManager() != null) {
                    args[4] = new Integer
                        (context.getManager().getActiveSessions());
                } else {
                    args[4] = new Integer(0);
                }

                args[5] = highlightColor;

                writer.print
                    (MessageFormat.format(APPS_ROW_DETAILS_SECTION, args));

                args = new Object[14];
                args[0] = response.encodeURL
                    (request.getContextPath() +
                     "/html/start?path=" + displayPath);
                args[1] = appsStart;
                args[2] = response.encodeURL
                    (request.getContextPath() +
                     "/html/stop?path=" + displayPath);
                args[3] = appsStop;
                args[4] = response.encodeURL
                    (request.getContextPath() +
                     "/html/reload?path=" + displayPath);
                args[5] = appsReload;
                args[6] = response.encodeURL
                    (request.getContextPath() +
                     "/html/undeploy?path=" + displayPath);
                args[7] = appsUndeploy;
                
                args[8] = response.encodeURL
                    (request.getContextPath() +
                     "/html/expire?path=" + displayPath);
                args[9] = appsExpire;
                args[10] = sm.getString("htmlManagerServlet.expire.explain");
                args[11] = new Integer(context.getManager().getMaxInactiveInterval()/60);
                args[12] = sm.getString("htmlManagerServlet.expire.unit");
                
                args[13] = highlightColor;

                if (context.getPath().equals(this.context.getPath())) {
                    writer.print(MessageFormat.format(
                        MANAGER_APP_ROW_BUTTON_SECTION, args));
                } else if (context.getAvailable() && isDeployed) {
                    writer.print(MessageFormat.format(
                        STARTED_DEPLOYED_APPS_ROW_BUTTON_SECTION, args));
                } else if (context.getAvailable() && !isDeployed) {
                    writer.print(MessageFormat.format(
                        STARTED_NONDEPLOYED_APPS_ROW_BUTTON_SECTION, args));
                } else if (!context.getAvailable() && isDeployed) {
                    writer.print(MessageFormat.format(
                        STOPPED_DEPLOYED_APPS_ROW_BUTTON_SECTION, args));
                } else {
                    writer.print(MessageFormat.format(
                        STOPPED_NONDEPLOYED_APPS_ROW_BUTTON_SECTION, args));
                }

            }
        }

        // Deploy Section
        args = new Object[7];
        args[0] = sm.getString("htmlManagerServlet.deployTitle");
        args[1] = sm.getString("htmlManagerServlet.deployServer");
        args[2] = response.encodeURL(request.getContextPath() + "/html/deploy");
        args[3] = sm.getString("htmlManagerServlet.deployPath");
        args[4] = sm.getString("htmlManagerServlet.deployConfig");
        args[5] = sm.getString("htmlManagerServlet.deployWar");
        args[6] = sm.getString("htmlManagerServlet.deployButton");
        writer.print(MessageFormat.format(DEPLOY_SECTION, args));

        args = new Object[4];
        args[0] = sm.getString("htmlManagerServlet.deployUpload");
        args[1] = response.encodeURL(request.getContextPath() + "/html/upload");
        args[2] = sm.getString("htmlManagerServlet.deployUploadFile");
        args[3] = sm.getString("htmlManagerServlet.deployButton");
        writer.print(MessageFormat.format(UPLOAD_SECTION, args));

        // Server Header Section
        args = new Object[7];
        args[0] = sm.getString("htmlManagerServlet.serverTitle");
        args[1] = sm.getString("htmlManagerServlet.serverVersion");
        args[2] = sm.getString("htmlManagerServlet.serverJVMVersion");
        args[3] = sm.getString("htmlManagerServlet.serverJVMVendor");
        args[4] = sm.getString("htmlManagerServlet.serverOSName");
        args[5] = sm.getString("htmlManagerServlet.serverOSVersion");
        args[6] = sm.getString("htmlManagerServlet.serverOSArch");
        writer.print(MessageFormat.format
                     (Constants.SERVER_HEADER_SECTION, args));

        // Server Row Section
        args = new Object[6];
        args[0] = ServerInfo.getServerInfo();
        args[1] = System.getProperty("java.runtime.version");
        args[2] = System.getProperty("java.vm.vendor");
        args[3] = System.getProperty("os.name");
        args[4] = System.getProperty("os.version");
        args[5] = System.getProperty("os.arch");
        writer.print(MessageFormat.format(Constants.SERVER_ROW_SECTION, args));

        // HTML Tail Section
        writer.print(Constants.HTML_TAIL_SECTION);

        // Finish up the response
        writer.flush();
        writer.close();
protected java.lang.Stringreload(java.lang.String path)
Reload the web application at the specified context path.

see
ManagerServlet#reload(PrintWriter, String)
param
path Context path of the application to be restarted
return
message String


        StringWriter stringWriter = new StringWriter();
        PrintWriter printWriter = new PrintWriter(stringWriter);

        super.reload(printWriter, path);

        return stringWriter.toString();
public booleanremoveSessionAttribute(java.lang.String path, java.lang.String sessionId, java.lang.String attributeName)
Removes an attribute from an HttpSession

param
sessionId
param
attributeName
return
true if there was an attribute removed, false otherwise
throws
IOException

        HttpSession session = getSessionForPathAndId(path, sessionId).getSession();
        if (null == session) {
            // Shouldn't happen, but let's play nice...
        	if (debug >= 1) {
        		log("WARNING: can't remove attribute '" + attributeName + "' for null session " + sessionId);
        	}
            return false;
        }
        boolean wasPresent = (null != session.getAttribute(attributeName));
        try {
            session.removeAttribute(attributeName);
        } catch (IllegalStateException ise) {
        	if (debug >= 1) {
        		log("Can't remote attribute '" + attributeName + "' for invalidated session id " + sessionId);
        	}
        }
        return wasPresent;
public java.lang.Stringsessions(java.lang.String path, int idle)
Display session information and invoke list.

see
ManagerServlet#sessions(PrintWriter, String, int)
param
path Context path of the application to list session information
param
idle Expire all sessions with idle time ≥ idle for this context
return
message String


        StringWriter stringWriter = new StringWriter();
        PrintWriter printWriter = new PrintWriter(stringWriter);

        super.sessions(printWriter, path, idle);

        return stringWriter.toString();
public java.lang.Stringsessions(java.lang.String path)
Display session information and invoke list.

see
ManagerServlet#sessions(PrintWriter, String)
param
path Context path of the application to list session information
return
message String


        return sessions(path, -1);
public intsetSessionMaxInactiveInterval(java.lang.String path, java.lang.String sessionId, int maxInactiveInterval)
Sets the maximum inactive interval (session timeout) an HttpSession

param
sessionId
param
maxInactiveInterval in seconds
return
old value for maxInactiveInterval
throws
IOException

        HttpSession session = getSessionForPathAndId(path, sessionId).getSession();
        if (null == session) {
            // Shouldn't happen, but let's play nice...
        	if (debug >= 1) {
        		log("WARNING: can't set timout for null session " + sessionId);
        	}
            return 0;
        }
        try {
			int oldMaxInactiveInterval = session.getMaxInactiveInterval();
			session.setMaxInactiveInterval(maxInactiveInterval);
			return oldMaxInactiveInterval;
        } catch (IllegalStateException ise) {
        	if (debug >= 1) {
        		log("Can't set MaxInactiveInterval '" + maxInactiveInterval + "' for invalidated session id " + sessionId);
        	}
        	return 0;
		}
public java.lang.Stringstart(java.lang.String path)
Start the web application at the specified context path.

see
ManagerServlet#start(PrintWriter, String)
param
path Context path of the application to be started
return
message String


        StringWriter stringWriter = new StringWriter();
        PrintWriter printWriter = new PrintWriter(stringWriter);

        super.start(printWriter, path);

        return stringWriter.toString();
protected java.lang.Stringstop(java.lang.String path)
Stop the web application at the specified context path.

see
ManagerServlet#stop(PrintWriter, String)
param
path Context path of the application to be stopped
return
message String


        StringWriter stringWriter = new StringWriter();
        PrintWriter printWriter = new PrintWriter(stringWriter);

        super.stop(printWriter, path);

        return stringWriter.toString();
protected java.lang.Stringundeploy(java.lang.String path)
Undeploy the web application at the specified context path.

see
ManagerServlet#undeploy(PrintWriter, String)
param
path Context path of the application to be undeployd
return
message String


        StringWriter stringWriter = new StringWriter();
        PrintWriter printWriter = new PrintWriter(stringWriter);

        super.undeploy(printWriter, path);

        return stringWriter.toString();