Package org.apache.catalina.core

Class StandardEngine

java.lang.Object

org.apache.catalina.util.LifecycleBase

org.apache.catalina.util.LifecycleMBeanBase

org.apache.catalina.core.ContainerBase

org.apache.catalina.core.StandardEngine

All Implemented Interfaces:

MBeanRegistration, Container, Engine, JmxEnabled, Lifecycle

public class StandardEngine
extends ContainerBase
implements Engine

Standard implementation of the Engine interface. Each child container must be a Host implementation to process the specific fully qualified host name of that virtual host.

Author:

Craig R. McClanahan

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static final class	StandardEngine.AccessLogListener
protected static final class	StandardEngine.NoopAccessLog

Nested classes/interfaces inherited from class org.apache.catalina.core.ContainerBase

ContainerBase.ContainerBackgroundProcessor, ContainerBase.ContainerBackgroundProcessorMonitor

Nested classes/interfaces inherited from interface org.apache.catalina.Lifecycle

Lifecycle.SingleUse

Field Summary

Fields inherited from class org.apache.catalina.core.ContainerBase

accessLog, backgroundProcessorDelay, backgroundProcessorFuture, children, cluster, listeners, logger, logName, monitorFuture, name, parent, parentClassLoader, pipeline, sm, startChildren, startStopExecutor, support

Fields inherited from interface org.apache.catalina.Container

ADD_CHILD_EVENT, ADD_VALVE_EVENT, REMOVE_CHILD_EVENT, REMOVE_VALVE_EVENT

Fields inherited from interface org.apache.catalina.Lifecycle

AFTER_DESTROY_EVENT, AFTER_INIT_EVENT, AFTER_START_EVENT, AFTER_STOP_EVENT, BEFORE_DESTROY_EVENT, BEFORE_INIT_EVENT, BEFORE_START_EVENT, BEFORE_STOP_EVENT, CONFIGURE_START_EVENT, CONFIGURE_STOP_EVENT, PERIODIC_EVENT, START_EVENT, STOP_EVENT

Constructor Summary

Constructors

Constructor	Description
StandardEngine()	Create a new StandardEngine component with the default basic Valve.

Method Summary

Modifier and Type	Method	Description
void	addChild(Container child)	Add a new child Container to those associated with this Container, if supported.
File	getCatalinaBase()	Obtain the location of CATALINA_BASE.
File	getCatalinaHome()	Obtain the location of CATALINA_HOME.
String	getDefaultHost()
protected String	getDomainInternal()	Method implemented by sub-classes to identify the domain in which MBeans should be registered.
String	getJvmRoute()
protected String	getObjectNameKeyProperties()	Allow sub-classes to specify the key properties component of the ObjectName that will be used to register this component.
ClassLoader	getParentClassLoader()	Get the parent class loader.
Realm	getRealm()	Obtain the Realm with which this Container is associated.
Service	getService()
protected void	initInternal()	Sub-classes implement this method to perform any instance initialisation required.
void	logAccess(Request request, Response response, long time, boolean useDefault)	Log a request/response that was destined for this container but has been handled earlier in the processing chain so that the request/response still appears in the correct access logs.
void	setDefaultHost(String host)	Set the default hostname for this Engine.
void	setJvmRoute(String routeId)	Set the JvmRouteId for this engine.
void	setParent(Container container)	Disallow any attempt to set a parent for this Container, since an Engine is supposed to be at the top of the Container hierarchy.
void	setService(Service service)	Set the Service with which we are associated (if any).
protected void	startInternal()	Start this component and implement the requirements of LifecycleBase.startInternal().

Methods inherited from class org.apache.catalina.core.ContainerBase

addContainerListener, addPropertyChangeListener, addValve, backgroundProcess, destroyInternal, findChild, findChildren, findContainerListeners, fireContainerEvent, getAccessLog, getBackgroundProcessorDelay, getChildren, getCluster, getClusterInternal, getLogger, getLogName, getMBeanKeyProperties, getName, getParent, getPipeline, getRealmInternal, getStartChildren, getStartStopThreads, removeChild, removeContainerListener, removePropertyChangeListener, setBackgroundProcessorDelay, setCluster, setName, setParentClassLoader, setRealm, setStartChildren, setStartStopThreads, stopInternal, threadStart, threadStop, toString

Methods inherited from class org.apache.catalina.util.LifecycleMBeanBase

getDomain, getObjectName, postDeregister, postRegister, preDeregister, preRegister, register, setDomain, unregister, unregister

Methods inherited from class org.apache.catalina.util.LifecycleBase

addLifecycleListener, destroy, findLifecycleListeners, fireLifecycleEvent, getState, getStateName, getThrowOnFailure, init, removeLifecycleListener, setState, setState, setThrowOnFailure, start, stop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.catalina.Container

addContainerListener, addPropertyChangeListener, backgroundProcess, findChild, findChildren, findContainerListeners, fireContainerEvent, getAccessLog, getBackgroundProcessorDelay, getCluster, getDomain, getLogger, getLogName, getMBeanKeyProperties, getName, getObjectName, getParent, getPipeline, getStartStopThreads, removeChild, removeContainerListener, removePropertyChangeListener, setBackgroundProcessorDelay, setCluster, setName, setParentClassLoader, setRealm, setStartStopThreads

Methods inherited from interface org.apache.catalina.Lifecycle

addLifecycleListener, destroy, findLifecycleListeners, getState, getStateName, init, removeLifecycleListener, start, stop

Constructor Details

StandardEngine

public StandardEngine()

Create a new StandardEngine component with the default basic Valve.

Method Details

getRealm

public Realm getRealm()

Description copied from interface: Container

Obtain the Realm with which this Container is associated.

Specified by:

getRealm in interface Container

Overrides:

getRealm in class ContainerBase

Returns:

The associated Realm; if there is no associated Realm, the Realm associated with the parent Container (if any); otherwise return null.

getDefaultHost

public String getDefaultHost()

Specified by:

getDefaultHost in interface Engine

Returns:

the default host name for this Engine.

setDefaultHost

public void setDefaultHost(String host)

Description copied from interface: Engine

Set the default hostname for this Engine.

Specified by:

setDefaultHost in interface Engine

Parameters:

host - The new default host

setJvmRoute

public void setJvmRoute(String routeId)

Description copied from interface: Engine

Set the JvmRouteId for this engine.

Specified by:

setJvmRoute in interface Engine

Parameters:

routeId - the (new) JVM Route ID. Each Engine within a cluster must have a unique JVM Route ID.

getJvmRoute

public String getJvmRoute()

Specified by:

getJvmRoute in interface Engine

Returns:

the JvmRouteId for this engine.

getService

public Service getService()

Specified by:

getService in interface Engine

Returns:

the Service with which we are associated (if any).

setService

public void setService(Service service)

Description copied from interface: Engine

Set the Service with which we are associated (if any).

Specified by:

setService in interface Engine

Parameters:

service - The service that owns this Engine

addChild

public void addChild(Container child)

Add a new child Container to those associated with this Container, if supported. Prior to adding this Container to the set of children, the child's setParent() method must be called, with this Container as an argument. This method may thrown an IllegalArgumentException if this Container chooses not to be attached to the specified Container, in which case it is not added

The child must be an implementation of Host.

Specified by:

addChild in interface Container

Overrides:

addChild in class ContainerBase

Parameters:

child - New child Container to be added

setParent

public void setParent(Container container)

Disallow any attempt to set a parent for this Container, since an Engine is supposed to be at the top of the Container hierarchy.

Specified by:

setParent in interface Container

Overrides:

setParent in class ContainerBase

Parameters:

container - Proposed parent Container

initInternal

protected void initInternal()
                     throws LifecycleException

Description copied from class: LifecycleBase

Sub-classes implement this method to perform any instance initialisation required.

Overrides:

initInternal in class LifecycleMBeanBase

Throws:

LifecycleException - If the initialisation fails

startInternal

protected void startInternal()
                      throws LifecycleException

Description copied from class: ContainerBase

Start this component and implement the requirements of LifecycleBase.startInternal().

Overrides:

startInternal in class ContainerBase

Throws:

LifecycleException - if this component detects a fatal error that prevents this component from being used

logAccess

public void logAccess(Request request,
 Response response,
 long time,
 boolean useDefault)

Log a request/response that was destined for this container but has been handled earlier in the processing chain so that the request/response still appears in the correct access logs.

Override the default implementation. If no access log is defined for the Engine, look for one in the Engine's default host and then the default host's ROOT context. If still none is found, return the default NoOp access log.

Specified by:

logAccess in interface Container

Overrides:

logAccess in class ContainerBase

Parameters:

request - Request (associated with the response) to log

response - Response (associated with the request) to log

time - Time taken to process the request/response in milliseconds (use 0 if not known)

useDefault - Flag that indicates that the request/response should be logged in the engine's default access log

getParentClassLoader

public ClassLoader getParentClassLoader()

Description copied from interface: Container

Get the parent class loader.

Specified by:

getParentClassLoader in interface Container

Overrides:

getParentClassLoader in class ContainerBase

Returns:

the parent class loader for this component. If not set, return Container.getParent().Container.getParentClassLoader(). If no parent has been set, return the system class loader.

getCatalinaBase

public File getCatalinaBase()

Description copied from interface: Container

Obtain the location of CATALINA_BASE.

Specified by:

getCatalinaBase in interface Container

Overrides:

getCatalinaBase in class ContainerBase

Returns:

The location of CATALINA_BASE.

getCatalinaHome

public File getCatalinaHome()

Description copied from interface: Container

Obtain the location of CATALINA_HOME.

Specified by:

getCatalinaHome in interface Container

Overrides:

getCatalinaHome in class ContainerBase

Returns:

The location of CATALINA_HOME.

getObjectNameKeyProperties

protected String getObjectNameKeyProperties()

Description copied from class: LifecycleMBeanBase

Allow sub-classes to specify the key properties component of the ObjectName that will be used to register this component.

Specified by:

getObjectNameKeyProperties in class LifecycleMBeanBase

Returns:

The string representation of the key properties component of the desired ObjectName

getDomainInternal

protected String getDomainInternal()

Description copied from class: LifecycleMBeanBase

Method implemented by sub-classes to identify the domain in which MBeans should be registered.

Overrides:

getDomainInternal in class ContainerBase

Returns:

The name of the domain to use to register MBeans.