org.apache.catalina.manager
Class ManagerServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.apache.catalina.manager.ManagerServlet

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig, ContainerServlet

Direct Known Subclasses:

HTMLManagerServlet

public class ManagerServlet
extends javax.servlet.http.HttpServlet
implements ContainerServlet

Servlet that enables remote management of the web applications installed 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.

This servlet examines the value returned by getPathInfo() and related query parameters to determine what action is being requested. The following actions and parameters (starting after the servlet path) are supported:

• /deploy?config={config-url} - Install and start a new web application, based on the contents of the context configuration file found at the specified URL. The docBase attribute of the context configuration file is used to locate the actual WAR or directory containing the application.
• /deploy?config={config-url}&war={war-url}/ - Install and start a new web application, based on the contents of the context configuration file found at {config-url}, overriding the docBase attribute with the contents of the web application archive found at {war-url}.
• /deploy?path=/xxx&war={war-url} - Install and start a new web application attached to context path /xxx, based on the contents of the web application archive found at the specified URL.
• /list - List the context paths of all currently installed web applications for this virtual host. Each context will be listed with the following format path:status:sessions. Where path is the context path. Status is either running or stopped. Sessions is the number of active Sessions.
• /reload?path=/xxx - Reload the Java classes and resources for the application at the specified path.
• /resources?type=xxxx - Enumerate the available global JNDI resources, optionally limited to those of the specified type (fully qualified Java class name), if available.
• /roles - Enumerate the available security role names and descriptions from the user database connected to the users resource reference.
• /serverinfo - Display system OS and JVM properties.
• /sessions - Deprecated. Use expire.
• /expire?path=/xxx - List session idle timeinformation about the web application attached to context path /xxx for this virtual host.
• /expire?path=/xxx&idle=mm - Expire sessions for the context path /xxx which were idle for at least mm minutes.
• /start?path=/xxx - Start the web application attached to context path /xxx for this virtual host.
• /stop?path=/xxx - Stop the web application attached to context path /xxx for this virtual host.
• /undeploy?path=/xxx - Shutdown and remove the web application attached to context path /xxx for this virtual host, and remove the underlying WAR file or document base directory. (NOTE - This is only allowed if the WAR file or document base is stored in the appBase directory of this host, typically as a result of being placed there via the /deploy command.

Use path=/ for the ROOT context.

The syntax of the URL for a web application archive must conform to one of the following patterns to be successfully deployed:

• file:/absolute/path/to/a/directory - You can specify the absolute path of a directory that contains the unpacked version of a web application. This directory will be attached to the context path you specify without any changes.

NOTE - Attempting to reload or remove the application containing this servlet itself will not succeed. Therefore, this servlet should generally be deployed as a separate web application within the virtual host to be managed.

NOTE - For security reasons, this application will not operate when accessed via the invoker servlet. You must explicitly map this servlet with a servlet mapping, and you will always want to protect it with appropriate security constraints as well.

The following servlet initialization parameters are recognized:

• debug - The debugging detail level that controls the amount of information that is logged by this servlet. Default is zero.

Author:

Craig R. McClanahan, Remy Maucherat

See Also:

Serialized Form

configBase

protected java.io.File configBase

Path where context descriptors should be deployed.

context

protected Context context

The Context container associated with our web application.

debug

protected int debug

The debugging detail level for this servlet.

deployed

protected java.io.File deployed

File object representing the directory into which the deploy() command will store the WAR and context configuration files that have been uploaded.

versioned

protected java.io.File versioned

Path used to store revisions of webapps.

contextDescriptors

protected java.io.File contextDescriptors

Path used to store context descriptors.

host

protected Host host

The associated host.

appBase

protected java.io.File appBase

The host appBase.

mBeanServer

protected javax.management.MBeanServer mBeanServer

MBean server.

oname

protected javax.management.ObjectName oname

The associated deployer ObjectName.

global

protected javax.naming.Context global

The global JNDI NamingContext for this server, if available.

sm

protected static StringManager sm

The string manager for this package.

wrapper

protected Wrapper wrapper

The Wrapper container associated with this servlet.

ManagerServlet

public ManagerServlet()

getWrapper

public Wrapper getWrapper()

Return the Wrapper with which we are associated.

Specified by:

getWrapper in interface ContainerServlet

setWrapper

public void setWrapper(Wrapper wrapper)

Set the Wrapper with which we are associated.

Specified by:

setWrapper in interface ContainerServlet

Parameters:

wrapper - The new wrapper

destroy

public void destroy()

Finalize this servlet.

Specified by:

destroy in interface javax.servlet.Servlet

Overrides:

destroy in class javax.servlet.GenericServlet

doGet

public void doGet(javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)
           throws java.io.IOException,
                  javax.servlet.ServletException

Process a GET request for the specified resource.

Overrides:

doGet in class javax.servlet.http.HttpServlet

Parameters:

request - The servlet request we are processing

response - The servlet response we are creating

Throws:

java.io.IOException - if an input/output error occurs

javax.servlet.ServletException - if a servlet-specified error occurs

See Also:

ServletResponse.setContentType(java.lang.String)

doPut

public void doPut(javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)
           throws java.io.IOException,
                  javax.servlet.ServletException

Process a PUT request for the specified resource.

Overrides:

doPut in class javax.servlet.http.HttpServlet

Parameters:

request - The servlet request we are processing

response - The servlet response we are creating

Throws:

java.io.IOException - if an input/output error occurs

javax.servlet.ServletException - if a servlet-specified error occurs

init

public void init()
          throws javax.servlet.ServletException

Initialize this servlet.

Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException - if an exception occurs that interrupts the servlet's normal operation

findleaks

protected void findleaks(java.io.PrintWriter writer)

Find potential memory leaks caused by web application reload.

save

protected void save(java.io.PrintWriter writer,
                    java.lang.String path)

Store server configuration.

Parameters:

path - Optional context path to save

deploy

protected void deploy(java.io.PrintWriter writer,
                      java.lang.String path,
                      java.lang.String tag,
                      boolean update,
                      javax.servlet.http.HttpServletRequest request)

Deploy a web application archive (included in the current request) at the specified context path.

Parameters:

writer - Writer to render results to

path - Context path of the application to be installed

tag - Tag to be associated with the webapp

request - Servlet request we are processing

deploy

protected void deploy(java.io.PrintWriter writer,
                      java.lang.String path,
                      java.lang.String tag)

Install an application for the specified path from the specified web application archive.

Parameters:

writer - Writer to render results to

tag - Revision tag to deploy from

path - Context path of the application to be installed

deploy

protected void deploy(java.io.PrintWriter writer,
                      java.lang.String config,
                      java.lang.String path,
                      java.lang.String war,
                      boolean update)

Install an application for the specified path from the specified web application archive.

Parameters:

writer - Writer to render results to

config - URL of the context configuration file to be installed

path - Context path of the application to be installed

war - URL of the web application archive to be installed

update - true to override any existing webapp on the path

list

protected void list(java.io.PrintWriter writer)

Render a list of the currently active Contexts in our virtual host.

Parameters:

writer - Writer to render to

reload

protected void reload(java.io.PrintWriter writer,
                      java.lang.String path)

Reload the web application at the specified context path.

Parameters:

writer - Writer to render to

path - Context path of the application to be restarted

resources

protected void resources(java.io.PrintWriter writer,
                         java.lang.String type)

Render a list of available global JNDI resources.

Parameters:

type - Fully qualified class name of the resource type of interest, or null to list resources of all types

printResources

protected void printResources(java.io.PrintWriter writer,
                              java.lang.String prefix,
                              javax.naming.Context namingContext,
                              java.lang.String type,
                              java.lang.Class clazz)

List the resources of the given context.

roles

protected void roles(java.io.PrintWriter writer)

Render a list of security role names (and corresponding descriptions) from the org.apache.catalina.UserDatabase resource that is connected to the users resource reference. Typically, this will be the global user database, but can be adjusted if you have different user databases for different virtual hosts.

Parameters:

writer - Writer to render to

serverinfo

protected void serverinfo(java.io.PrintWriter writer)

Writes System OS and JVM properties.

Parameters:

writer - Writer to render to

sessions

protected void sessions(java.io.PrintWriter writer,
                        java.lang.String path,
                        int idle)

Session information for the web application at the specified context path. Displays a profile of session lastAccessedTime listing number of sessions for each 10 minute interval up to 10 hours.

Parameters:

writer - Writer to render to

path - Context path of the application to list session information for

idle - Expire all sessions with idle time ≥ idle for this context

sessions

protected void sessions(java.io.PrintWriter writer,
                        java.lang.String path)

Session information for the web application at the specified context path. Displays a profile of session lastAccessedTime listing number of sessions for each 10 minute interval up to 10 hours.

Parameters:

writer - Writer to render to

path - Context path of the application to list session information for

expireSessions

protected void expireSessions(java.io.PrintWriter writer,
                              java.lang.String path,
                              javax.servlet.http.HttpServletRequest req)

Extract the expiration request parameter

Parameters:

path -

req -

start

protected void start(java.io.PrintWriter writer,
                     java.lang.String path)

Start the web application at the specified context path.

Parameters:

writer - Writer to render to

path - Context path of the application to be started

stop

protected void stop(java.io.PrintWriter writer,
                    java.lang.String path)

Stop the web application at the specified context path.

Parameters:

writer - Writer to render to

path - Context path of the application to be stopped

undeploy

protected void undeploy(java.io.PrintWriter writer,
                        java.lang.String path)

Undeploy the web application at the specified context path.

Parameters:

writer - Writer to render to

path - Context path of the application to be removed

getConfigFile

protected java.lang.String getConfigFile(java.lang.String path)

Given a context path, get the config file name.

getDocBase

protected java.lang.String getDocBase(java.lang.String path)

Given a context path, get the doc base.

getAppBase

protected java.io.File getAppBase()

Return a File object representing the "application root" directory for our associated Host.

isDeployed

protected boolean isDeployed(java.lang.String name)
                      throws java.lang.Exception

Invoke the isDeployed method on the deployer.

Throws:

java.lang.Exception

check

protected void check(java.lang.String name)
              throws java.lang.Exception

Invoke the check method on the deployer.

Throws:

java.lang.Exception

isServiced

protected boolean isServiced(java.lang.String name)
                      throws java.lang.Exception

Invoke the isServiced method on the deployer.

Throws:

java.lang.Exception

addServiced

protected void addServiced(java.lang.String name)
                    throws java.lang.Exception

Invoke the addServiced method on the deployer.

Throws:

java.lang.Exception

removeServiced

protected void removeServiced(java.lang.String name)
                       throws java.lang.Exception

Invoke the removeServiced method on the deployer.

Throws:

java.lang.Exception

undeployDir

protected void undeployDir(java.io.File dir)

Delete the specified directory, including all of its contents and subdirectories recursively.

Parameters:

dir - File object representing the directory to be deleted

uploadWar

protected void uploadWar(javax.servlet.http.HttpServletRequest request,
                         java.io.File war)
                  throws java.io.IOException

Upload the WAR file included in this request, and store it at the specified file location.

Parameters:

request - The servlet request we are processing

war - The file into which we should store the uploaded WAR

Throws:

java.io.IOException - if an I/O error occurs during processing

copy

public static boolean copy(java.io.File src,
                           java.io.File dest)

Copy the specified file or directory to the destination.

Parameters:

src - File object representing the source

dest - File object representing the destination

copyInternal

public static boolean copyInternal(java.io.File src,
                                   java.io.File dest,
                                   byte[] buf)

Copy the specified file or directory to the destination.

Parameters:

src - File object representing the source

dest - File object representing the destination