Package org.apache.coyote.ajp

Class AbstractAjpProtocol<S>

java.lang.Object

org.apache.coyote.AbstractProtocol<S>

org.apache.coyote.ajp.AbstractAjpProtocol<S>

Type Parameters:

S - The type of socket used by the implementation

All Implemented Interfaces:

MBeanRegistration, ProtocolHandler

Direct Known Subclasses:

AjpNio2Protocol, AjpNioProtocol

public abstract class AbstractAjpProtocol<S>
extends AbstractProtocol<S>

The is the base implementation for the AJP protocol handlers. Implementations typically extend this base class rather than implement ProtocolHandler. All of the implementations that ship with Tomcat are implemented this way.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.coyote.AbstractProtocol

AbstractProtocol.ConnectionHandler<S>, AbstractProtocol.RecycledProcessors

Field Summary

Fields

Modifier and Type	Field	Description
protected static final StringManager	sm	The string manager for this package.

Fields inherited from class org.apache.coyote.AbstractProtocol

adapter, domain, mserver, oname, processorCache, rgOname

Constructor Summary

Constructors

Constructor	Description
AbstractAjpProtocol(AbstractEndpoint<S,?> endpoint)

Method Summary

Modifier and Type	Method	Description
void	addSslHostConfig(SSLHostConfig sslHostConfig)	Add a new SSL configuration for a virtual host.
void	addSslHostConfig(SSLHostConfig sslHostConfig, boolean replace)	Add a new SSL configuration for a virtual host.
void	addUpgradeProtocol(UpgradeProtocol upgradeProtocol)	Add a new protocol for used by HTTP/1.1 upgrade or ALPN.
protected Processor	createProcessor()	Create and configure a new Processor instance for the current protocol implementation.
protected Processor	createUpgradeProcessor(SocketWrapperBase<?> socket, UpgradeToken upgradeToken)
SSLHostConfig[]	findSslHostConfigs()	Find all configured SSL virtual host configurations which will be used by SNI.
UpgradeProtocol[]	findUpgradeProtocols()	Return all configured upgrade protocols.
boolean	getAjpFlush()
String	getAllowedRequestAttributesPattern()
protected Pattern	getAllowedRequestAttributesPatternInternal()
int	getDesiredBufferSize()	Some protocols, like AJP, have a packet length that shouldn't be exceeded, and this can be used to adjust the buffering used by the application layer.
protected AbstractEndpoint<S,?>	getEndpoint()	Overridden to make getter accessible to other classes in this package.
protected UpgradeProtocol	getNegotiatedProtocol(String name)	Find a suitable handler for the protocol negotiated at the network layer.
int	getPacketSize()
protected String	getProtocolName()	Obtain the name of the protocol, (Http, Ajp, etc.).
protected String	getSecret()
boolean	getSecretRequired()
boolean	getTomcatAuthentication()	Should authentication be done in the native web server layer, or in the Servlet container ?
boolean	getTomcatAuthorization()	Should authentication be done in the native web server layer and authorization in the Servlet container?
protected UpgradeProtocol	getUpgradeProtocol(String name)	Find a suitable handler for the protocol upgraded name specified.
void	setAjpFlush(boolean ajpFlush)	Configure whether to aend an AJP flush packet when flushing.
void	setAllowedRequestAttributesPattern(String allowedRequestAttributesPattern)
void	setPacketSize(int packetSize)
void	setSecret(String secret)	Set the secret that must be included with every request.
void	setSecretRequired(boolean secretRequired)
void	setTomcatAuthentication(boolean tomcatAuthentication)
void	setTomcatAuthorization(boolean tomcatAuthorization)
void	start()	Start the protocol.

Methods inherited from class org.apache.coyote.AbstractProtocol

addWaitingProcessor, awaitConnectionsClose, closeServerSocketGraceful, destroy, getAcceptCount, getAcceptorThreadPriority, getAdapter, getAddress, getClientCertProvider, getConnectionCount, getConnectionLinger, getConnectionTimeout, getDomain, getExecutor, getGlobalRequestProcessorMBeanName, getHandler, getId, getKeepAliveTimeout, getLocalPort, getLog, getMaxConnections, getMaxHeaderCount, getMaxThreads, getMinSpareThreads, getName, getNameIndex, getNamePrefix, getObjectName, getPort, getPortOffset, getPortWithOffset, getProcessorCache, getProperty, getTcpNoDelay, getThreadPriority, getUtilityExecutor, getWaitingProcessorCount, init, isPaused, isSendfileSupported, pause, postDeregister, postRegister, preDeregister, preRegister, removeWaitingProcessor, resume, setAcceptCount, setAcceptorThreadPriority, setAdapter, setAddress, setClientCertProvider, setConnectionLinger, setConnectionTimeout, setExecutor, setHandler, setKeepAliveTimeout, setMaxConnections, setMaxHeaderCount, setMaxThreads, setMinSpareThreads, setPort, setPortOffset, setProcessorCache, setProperty, setTcpNoDelay, setThreadPriority, setUtilityExecutor, startAsyncTimeout, stop, stopAsyncTimeout

Methods inherited from class java.lang.Object

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

Field Details

sm

protected static final StringManager sm

The string manager for this package.

Constructor Details

AbstractAjpProtocol

public AbstractAjpProtocol(AbstractEndpoint<S,?> endpoint)

Method Details

getProtocolName

protected String getProtocolName()

Description copied from class: AbstractProtocol

Obtain the name of the protocol, (Http, Ajp, etc.). Used with JMX.

Specified by:

getProtocolName in class AbstractProtocol<S>

Returns:

the protocol name

getEndpoint

protected AbstractEndpoint<S,?> getEndpoint()

Overridden to make getter accessible to other classes in this package.

Overrides:

getEndpoint in class AbstractProtocol<S>

getNegotiatedProtocol

protected UpgradeProtocol getNegotiatedProtocol(String name)

Find a suitable handler for the protocol negotiated at the network layer. AJP does not support protocol negotiation so this always returns null.

Specified by:

getNegotiatedProtocol in class AbstractProtocol<S>

Parameters:

name - The name of the requested negotiated protocol.

Returns:

The instance where UpgradeProtocol.getAlpnName() matches the requested protocol

getUpgradeProtocol

protected UpgradeProtocol getUpgradeProtocol(String name)

Find a suitable handler for the protocol upgraded name specified. This is used for direct connection protocol selection. AJP does not support protocol upgrade so this always returns null.

Specified by:

getUpgradeProtocol in class AbstractProtocol<S>

Parameters:

name - The name of the requested negotiated protocol.

Returns:

The instance where UpgradeProtocol.getAlpnName() matches the requested protocol

getAjpFlush

public boolean getAjpFlush()

setAjpFlush

public void setAjpFlush(boolean ajpFlush)

Configure whether to aend an AJP flush packet when flushing. A flush packet is a zero byte AJP13 SEND_BODY_CHUNK packet. mod_jk and mod_proxy_ajp interpret this as a request to flush data to the client. AJP always does flush at the and of the response, so if it is not important, that the packets get streamed up to the client, do not use extra flush packets. For compatibility and to stay on the safe side, flush packets are enabled by default.

Parameters:

ajpFlush - The new flush setting

getTomcatAuthentication

public boolean getTomcatAuthentication()

Should authentication be done in the native web server layer, or in the Servlet container ?

Returns:

true if authentication should be performed by Tomcat, otherwise false

setTomcatAuthentication

public void setTomcatAuthentication(boolean tomcatAuthentication)

getTomcatAuthorization

public boolean getTomcatAuthorization()

Should authentication be done in the native web server layer and authorization in the Servlet container?

Returns:

true if authorization should be performed by Tomcat, otherwise false

setTomcatAuthorization

public void setTomcatAuthorization(boolean tomcatAuthorization)

setSecret

public void setSecret(String secret)

Set the secret that must be included with every request.

Parameters:

secret - The required secret

getSecret

protected String getSecret()

setSecretRequired

public void setSecretRequired(boolean secretRequired)

getSecretRequired

public boolean getSecretRequired()

setAllowedRequestAttributesPattern

public void setAllowedRequestAttributesPattern(String allowedRequestAttributesPattern)

getAllowedRequestAttributesPattern

public String getAllowedRequestAttributesPattern()

getAllowedRequestAttributesPatternInternal

protected Pattern getAllowedRequestAttributesPatternInternal()

getPacketSize

public int getPacketSize()

setPacketSize

public void setPacketSize(int packetSize)

getDesiredBufferSize

public int getDesiredBufferSize()

Description copied from interface: ProtocolHandler

Some protocols, like AJP, have a packet length that shouldn't be exceeded, and this can be used to adjust the buffering used by the application layer.

Returns:

the desired buffer size, or -1 if not relevant

addSslHostConfig

public void addSslHostConfig(SSLHostConfig sslHostConfig)

Description copied from interface: ProtocolHandler

Add a new SSL configuration for a virtual host.

Parameters:

sslHostConfig - the configuration

addSslHostConfig

public void addSslHostConfig(SSLHostConfig sslHostConfig,
 boolean replace)

Description copied from interface: ProtocolHandler

Add a new SSL configuration for a virtual host.

Parameters:

sslHostConfig - the configuration

replace - If true replacement of an existing configuration is permitted, otherwise any such attempted replacement will trigger an exception

findSslHostConfigs

public SSLHostConfig[] findSslHostConfigs()

Description copied from interface: ProtocolHandler

Find all configured SSL virtual host configurations which will be used by SNI.

Returns:

the configurations

addUpgradeProtocol

public void addUpgradeProtocol(UpgradeProtocol upgradeProtocol)

Description copied from interface: ProtocolHandler

Add a new protocol for used by HTTP/1.1 upgrade or ALPN.

Parameters:

upgradeProtocol - the protocol

findUpgradeProtocols

public UpgradeProtocol[] findUpgradeProtocols()

Description copied from interface: ProtocolHandler

Return all configured upgrade protocols.

Returns:

the protocols

createProcessor

protected Processor createProcessor()

Description copied from class: AbstractProtocol

Create and configure a new Processor instance for the current protocol implementation.

Specified by:

createProcessor in class AbstractProtocol<S>

Returns:

A fully configured Processor instance that is ready to use

createUpgradeProcessor

protected Processor createUpgradeProcessor(SocketWrapperBase<?> socket,
 UpgradeToken upgradeToken)

Specified by:

createUpgradeProcessor in class AbstractProtocol<S>

start

public void start()
           throws Exception

Description copied from interface: ProtocolHandler

Start the protocol.

Specified by:

start in interface ProtocolHandler

Overrides:

start in class AbstractProtocol<S>

Throws:

Exception - If the protocol handler fails to start