org.apache.ajp.tomcat4.config
Class BaseJkConfig

java.lang.Object
  org.apache.ajp.tomcat4.config.BaseJkConfig

All Implemented Interfaces:

LifecycleListener

Direct Known Subclasses:

ApacheConfig, IISConfig, NSConfig

public class BaseJkConfig

extends java.lang.Object

implements LifecycleListener

Base class for automatic jk based configurations based on the Tomcat server.xml settings and the war contexts initialized during startup.

This config interceptor is enabled by inserting a Config element in the <ContextManager> tag body inside the server.xml file like so:

 < ContextManager ... >
   ...
   <???Config options />
   ...
 < /ContextManager >
    

where options can include any of the following attributes:

• configHome - default parent directory for the following paths. If not set, this defaults to TOMCAT_HOME. Ignored whenever any of the following paths is absolute.
• workersConfig - path to workers.properties file used by jk connector. If not set, defaults to "conf/jk/workers.properties".
• jkLog - path to log file to be used by jk connector.
• jkDebug - Loglevel setting. May be debug, info, error, or emerg. If not set, defaults to emerg.
• jkWorker The desired worker. Must be set to one of the workers defined in the workers.properties file. "ajp12", "ajp13" or "inprocess" are the workers found in the default workers.properties file. If not specified, defaults to "ajp13" if an Ajp13Interceptor is in use, otherwise it defaults to "ajp12".
• forwardAll - If true, forward all requests to Tomcat. This helps insure that all the behavior configured in the web.xml file functions correctly. If false, let Apache serve static resources. The default is true. Warning: When false, some configuration in the web.xml may not be duplicated in Apache. Review the mod_jk conf file to see what configuration is actually being set in Apache.
• noRoot - If true, the root context is not mapped to Tomcat. If false and forwardAll is true, all requests to the root context are mapped to Tomcat. If false and forwardAll is false, only JSP and servlets requests to the root context are mapped to Tomcat. When false, to correctly serve Tomcat's root context you may also need to modify the web server to point it's home directory to Tomcat's root context directory. Otherwise some content, such as the root index.html, may be served by the web server before the connector gets a chance to claim the request and pass it to Tomcat. The default is true.

Version:

$Revision: 1.5 $

Author:

Costin Manolache, Larry Isaacs, Bill Barker

Field Summary

protected boolean	append
protected java.io.File	configHome
protected int	debug
protected boolean	forwardAll
protected java.lang.String	jkDebug
protected java.io.File	jkLog
protected java.lang.String	jkWorker
protected boolean	noRoot
protected boolean	regenerate
protected java.lang.String	tomcatHome
protected java.io.File	workersConfig

Constructor Summary

BaseJkConfig()

Method Summary

protected boolean	addExtensionMapping(java.lang.String ctxPath, java.lang.String ext, java.io.PrintWriter pw) Add an extension mapping.
protected boolean	addMapping(java.lang.String fullPath, java.io.PrintWriter pw) Add a fulling specified mapping.
void	execute(LifecycleEvent evt) Generate configuration files.
void	executeContext(Context context, java.io.PrintWriter mod_jk) executes the ApacheConfig interceptor.
protected void	executeEngine(Engine egn, java.io.PrintWriter mod_jk) Generate configuration files.
protected void	executeHost(Host hst, java.io.PrintWriter mod_jk) Generate configuration files.
void	executeServer(Server svr, java.io.PrintWriter mod_jk) Generate configuration files.
protected void	generateContextMappings(Context context, java.io.PrintWriter mod_jk)
protected boolean	generateJkHead(java.io.PrintWriter mod_jk) Generate general options
protected void	generateJkTail(java.io.PrintWriter mod_jk) Generate general options
protected void	generateSSLConfig(java.io.PrintWriter mod_jk) Generate SSL options
protected void	generateStupidMappings(Context context, java.io.PrintWriter mod_jk)
protected void	generateVhostHead(Host host, java.io.PrintWriter mod_jk) Generate Virtual Host start
protected void	generateVhostTail(Host host, java.io.PrintWriter mod_jk) Generate Virtual Host end
protected java.lang.String	getAbsoluteDocBase(Context context)
static java.io.File	getConfigFile(java.io.File base, java.io.File configDir, java.lang.String defaultF)
protected Host	getHost(Container child) Get the host associated with this Container (if any).
protected java.io.PrintWriter	getWriter() Get the output Writer.
protected void	initProperties() Initialize defaults for properties that are not set explicitely
static boolean	isAbsolute(java.lang.String path)
void	lifecycleEvent(LifecycleEvent evt) Generate the configuration - only when the server is completely initialized ( before starting )
protected void	log(java.lang.String msg)
static java.lang.String	patch(java.lang.String path)
void	setAppend(boolean apnd) Append to config file.
void	setConfigHome(java.lang.String dir) set a path to the parent directory of the conf folder.
void	setForwardAll(boolean b) If false, we'll try to generate a config that will let apache serve static files.
void	setJkDebug(java.lang.String level) Set the verbosity level ( use debug, error, etc.
void	setJkLog(java.lang.String path) set the path to the log file
void	setJkWorker(java.lang.String worker) set the Ajp protocal
void	setNoRoot(boolean b) Special option - do not generate mappings for the ROOT context.
void	setWorkersConfig(java.lang.String path) set a path to the workers.properties file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

debug

protected int debug

configHome

protected java.io.File configHome

workersConfig

protected java.io.File workersConfig

jkLog

protected java.io.File jkLog

jkDebug

protected java.lang.String jkDebug

jkWorker

protected java.lang.String jkWorker

noRoot

protected boolean noRoot

forwardAll

protected boolean forwardAll

tomcatHome

protected java.lang.String tomcatHome

regenerate

protected boolean regenerate

append

protected boolean append

Constructor Detail

BaseJkConfig

public BaseJkConfig()

Method Detail

lifecycleEvent

public void lifecycleEvent(LifecycleEvent evt)

Generate the configuration - only when the server is completely initialized ( before starting )

Specified by:

lifecycleEvent in interface LifecycleListener

Parameters:

evt - LifecycleEvent that has occurred

execute

public void execute(LifecycleEvent evt)

Generate configuration files. Override with method to generate web server specific configuration.

executeServer

public void executeServer(Server svr,
                          java.io.PrintWriter mod_jk)

Generate configuration files. Override with method to generate web server specific configuration.

generateSSLConfig

protected void generateSSLConfig(java.io.PrintWriter mod_jk)

Generate SSL options

generateJkHead

protected boolean generateJkHead(java.io.PrintWriter mod_jk)

Generate general options

generateJkTail

protected void generateJkTail(java.io.PrintWriter mod_jk)

Generate general options

generateVhostHead

protected void generateVhostHead(Host host,
                                 java.io.PrintWriter mod_jk)

Generate Virtual Host start

generateVhostTail

protected void generateVhostTail(Host host,
                                 java.io.PrintWriter mod_jk)

Generate Virtual Host end

executeEngine

protected void executeEngine(Engine egn,
                             java.io.PrintWriter mod_jk)

Generate configuration files. Override with method to generate web server specific configuration.

executeHost

protected void executeHost(Host hst,
                           java.io.PrintWriter mod_jk)

Generate configuration files. Override with method to generate web server specific configuration.

executeContext

public void executeContext(Context context,
                           java.io.PrintWriter mod_jk)

executes the ApacheConfig interceptor. This method generates apache configuration files for use with mod_jk.

generateStupidMappings

protected void generateStupidMappings(Context context,
                                      java.io.PrintWriter mod_jk)

generateContextMappings

protected void generateContextMappings(Context context,
                                       java.io.PrintWriter mod_jk)

getWriter

protected java.io.PrintWriter getWriter()
                                 throws java.io.IOException

Get the output Writer. Override with method to generate web server specific configuration.

Throws:

java.io.IOException

getHost

protected Host getHost(Container child)

Get the host associated with this Container (if any).

setAppend

public void setAppend(boolean apnd)

Append to config file. Set to true if the config information should be appended.

setForwardAll

public void setForwardAll(boolean b)

If false, we'll try to generate a config that will let apache serve static files. The default is true, forward all requests in a context to tomcat.

setNoRoot

public void setNoRoot(boolean b)

Special option - do not generate mappings for the ROOT context. The default is true, and will not generate the mappings, not redirecting all pages to tomcat (since /* matches everything). This means that the web server's root remains intact but isn't completely servlet/JSP enabled. If the ROOT webapp can be configured with the web server serving static files, there's no problem setting this option to false. If not, then setting it true means the web server will be out of picture for all requests.

setConfigHome

public void setConfigHome(java.lang.String dir)

set a path to the parent directory of the conf folder. That is, the parent directory within which path setters would be resolved against, if relative. For example if ConfigHome is set to "/home/tomcat" and regConfig is set to "conf/mod_jk.conf" then the resulting path used would be: "/home/tomcat/conf/mod_jk.conf".

However, if the path is set to an absolute path, this attribute is ignored.

If not set, execute() will set this to TOMCAT_HOME.

setWorkersConfig

public void setWorkersConfig(java.lang.String path)

set a path to the workers.properties file.

setJkLog

public void setJkLog(java.lang.String path)

set the path to the log file

setJkDebug

public void setJkDebug(java.lang.String level)

Set the verbosity level ( use debug, error, etc. ) If not set, no log is written.

setJkWorker

public void setJkWorker(java.lang.String worker)

set the Ajp protocal

initProperties

protected void initProperties()

Initialize defaults for properties that are not set explicitely

addExtensionMapping

protected boolean addExtensionMapping(java.lang.String ctxPath,
                                      java.lang.String ext,
                                      java.io.PrintWriter pw)

Add an extension mapping. Override with method to generate web server specific configuration

addMapping

protected boolean addMapping(java.lang.String fullPath,
                             java.io.PrintWriter pw)

Add a fulling specified mapping. Override with method to generate web server specific configuration

getAbsoluteDocBase

protected java.lang.String getAbsoluteDocBase(Context context)

getConfigFile

public static java.io.File getConfigFile(java.io.File base,
                                         java.io.File configDir,
                                         java.lang.String defaultF)

patch

public static java.lang.String patch(java.lang.String path)

isAbsolute

public static boolean isAbsolute(java.lang.String path)

log

protected void log(java.lang.String msg)