org.opends.server.protocols.http

Class HTTPConnectionHandler

java.lang.Object

java.lang.Thread

org.opends.server.api.DirectoryThread

org.opends.server.api.ConnectionHandler<HTTPConnectionHandlerCfg>

org.opends.server.protocols.http.HTTPConnectionHandler

All Implemented Interfaces:

Runnable, ConfigurationChangeListener<HTTPConnectionHandlerCfg>, AlertGenerator, ServerShutdownListener

public class HTTPConnectionHandler
extends ConnectionHandler<HTTPConnectionHandlerCfg>
implements ConfigurationChangeListener<HTTPConnectionHandlerCfg>, ServerShutdownListener, AlertGenerator

This class defines a connection handler that will be used for communicating with clients over HTTP. The connection handler is responsible for starting/stopping the embedded web server.

Nested Class Summary

Nested classes/interfaces inherited from class org.opends.server.api.DirectoryThread

DirectoryThread.Factory

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class org.opends.server.api.DirectoryThread

DIRECTORY_THREAD_GROUP

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
HTTPConnectionHandler() Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	acceptUnauthenticatedRequests() Returns whether unauthenticated HTTP requests are allowed.
org.forgerock.opendj.config.server.ConfigChangeResult	applyConfigurationChange(HTTPConnectionHandlerCfg config) Applies the configuration changes to this change listener.
void	finalizeConnectionHandler(LocalizableMessage finalizeReason) Closes this connection handler so that it will no longer accept new client connections.
Map<String,String>	getAlerts() Retrieves information about the set of alerts that this generator may produce.
String	getClassName() Retrieves the fully-qualified name of the Java class for this alert generator implementation.
Collection<ClientConnection>	getClientConnections() Retrieves the set of active client connections that have been established through this connection handler.
DN	getComponentEntryDN() Retrieves the DN of the configuration entry with which this alert generator is associated.
String	getConnectionHandlerName() Retrieves a name that may be used to refer to this connection handler.
Collection<String>	getEnabledSSLCipherSuites() Retrieves an unmodifiable set of enabled SSL cipher suites configured for this connection handler, if applicable.
Collection<String>	getEnabledSSLProtocols() Retrieves the set of enabled SSL protocols configured for this connection handler.
Collection<HostPort>	getListeners() Retrieves information about the listener(s) that will be used to accept client connections.
String	getProtocol() Retrieves the name of the protocol used to communicate with clients.
String	getShutdownListenerName() Retrieves the human-readable name for this shutdown listener.
HTTPStatistics	getStatTracker() Retrieves the set of statistics maintained by this connection handler.
void	initializeConnectionHandler(ServerContext serverContext, HTTPConnectionHandlerCfg config) Initializes this connection handler provider based on the information in the provided connection handler configuration.
boolean	isConfigurationAcceptable(ConnectionHandlerCfg configuration, List<LocalizableMessage> unacceptableReasons) Indicates whether the provided configuration is acceptable for this connection handler.
boolean	isConfigurationChangeAcceptable(HTTPConnectionHandlerCfg configuration, List<LocalizableMessage> unacceptableReasons) Indicates whether the proposed change to the configuration is acceptable to this change listener.
boolean	keepStats() Indicates whether this connection handler should maintain usage statistics.
void	processServerShutdown(LocalizableMessage reason) Indicates that the Directory Server has received a request to stop running and that this shutdown listener should take any action necessary to prepare for it.
void	run() Operates in a loop, accepting new connections and ensuring that requests on those connections are handled properly.
void	start()
void	toString(StringBuilder buffer) Appends a string representation of this connection handler to the provided buffer.

Methods inherited from class org.opends.server.api.ConnectionHandler

getConnectionHandlerMonitor, getNumRequestHandlers, isAdminConnectionHandler, setAdminConnectionHandler, setConnectionHandlerMonitor, toString

Methods inherited from class org.opends.server.api.DirectoryThread

getAssociatedTask, getCreationStackTrace, getDebugProperties, getParentThread, initiateShutdown, isShutdownInitiated, setAssociatedTask, startWork, stopWork

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, stop, stop, suspend, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

HTTPConnectionHandler

public HTTPConnectionHandler()

Default constructor. It is invoked by reflection to create this ConnectionHandler.

Method Detail

acceptUnauthenticatedRequests

public boolean acceptUnauthenticatedRequests()

Returns whether unauthenticated HTTP requests are allowed. The server checks whether unauthenticated requests are allowed server-wide first then for the HTTP Connection Handler second.

Returns:

true if unauthenticated requests are allowed, false otherwise.

applyConfigurationChange

public org.forgerock.opendj.config.server.ConfigChangeResult applyConfigurationChange(HTTPConnectionHandlerCfg config)

Description copied from interface: ConfigurationChangeListener

Applies the configuration changes to this change listener.

Specified by:

applyConfigurationChange in interface ConfigurationChangeListener<HTTPConnectionHandlerCfg>

Parameters:

config - The new configuration containing the changes.

Returns:

Returns information about the result of changing the configuration.

finalizeConnectionHandler

public void finalizeConnectionHandler(LocalizableMessage finalizeReason)

Description copied from class: ConnectionHandler

Closes this connection handler so that it will no longer accept new client connections. Implementations should disconnect any existing connections.

Specified by:

finalizeConnectionHandler in class ConnectionHandler<HTTPConnectionHandlerCfg>

Parameters:

finalizeReason - The reason that this connection handler should be finalized.

getAlerts

public Map<String,String> getAlerts()

Description copied from interface: AlertGenerator

Retrieves information about the set of alerts that this generator may produce. The map returned should be between the notification type for a particular notification and the human-readable description for that notification. This alert generator must not generate any alerts with types that are not contained in this list.

Specified by:

getAlerts in interface AlertGenerator

Returns:

Information about the set of alerts that this generator may produce.

getClassName

public String getClassName()

Description copied from interface: AlertGenerator

Retrieves the fully-qualified name of the Java class for this alert generator implementation.

Specified by:

getClassName in interface AlertGenerator

Returns:

The fully-qualified name of the Java class for this alert generator implementation.

getClientConnections

public Collection<ClientConnection> getClientConnections()

Description copied from class: ConnectionHandler

Retrieves the set of active client connections that have been established through this connection handler.

Specified by:

getClientConnections in class ConnectionHandler<HTTPConnectionHandlerCfg>

Returns:

The set of active client connections that have been established through this connection handler.

getComponentEntryDN

public DN getComponentEntryDN()

Description copied from class: ConnectionHandler

Retrieves the DN of the configuration entry with which this alert generator is associated.

Specified by:

getComponentEntryDN in interface AlertGenerator

Specified by:

getComponentEntryDN in class ConnectionHandler<HTTPConnectionHandlerCfg>

Returns:

The DN of the configuration entry with which this alert generator is associated.

getConnectionHandlerName

public String getConnectionHandlerName()

Description copied from class: ConnectionHandler

Retrieves a name that may be used to refer to this connection handler. Every connection handler instance (even handlers of the same type) must have a unique name.

Specified by:

getConnectionHandlerName in class ConnectionHandler<HTTPConnectionHandlerCfg>

Returns:

A unique name that may be used to refer to this connection handler.

getEnabledSSLCipherSuites

public Collection<String> getEnabledSSLCipherSuites()

Description copied from class: ConnectionHandler

Retrieves an unmodifiable set of enabled SSL cipher suites configured for this connection handler, if applicable. Implementations must return an empty set if use of SSL/TLS is not possible.

Overrides:

getEnabledSSLCipherSuites in class ConnectionHandler<HTTPConnectionHandlerCfg>

Returns:

The set of enabled SSL cipher suites configured for this connection handler.

getEnabledSSLProtocols

public Collection<String> getEnabledSSLProtocols()

Description copied from class: ConnectionHandler

Retrieves the set of enabled SSL protocols configured for this connection handler. Implementations must return an empty set if use of SSL/TLS is not possible.

Overrides:

getEnabledSSLProtocols in class ConnectionHandler<HTTPConnectionHandlerCfg>

Returns:

The set of enabled SSL protocols configured for this connection handler.

getListeners

public Collection<HostPort> getListeners()

Description copied from class: ConnectionHandler

Retrieves information about the listener(s) that will be used to accept client connections.

Specified by:

getListeners in class ConnectionHandler<HTTPConnectionHandlerCfg>

Returns:

Information about the listener(s) that will be used to accept client connections, or an empty list if this connection handler does not accept connections from network clients.

getProtocol

public String getProtocol()

Description copied from class: ConnectionHandler

Retrieves the name of the protocol used to communicate with clients. It should take into account any special naming that may be needed to express any security mechanisms or other constraints in place (e.g., "LDAPS" for LDAP over SSL).

Specified by:

getProtocol in class ConnectionHandler<HTTPConnectionHandlerCfg>

Returns:

The name of the protocol used to communicate with clients.

getShutdownListenerName

public String getShutdownListenerName()

Description copied from interface: ServerShutdownListener

Retrieves the human-readable name for this shutdown listener.

Specified by:

getShutdownListenerName in interface ServerShutdownListener

Returns:

The human-readable name for this shutdown listener.

getStatTracker

public HTTPStatistics getStatTracker()

Retrieves the set of statistics maintained by this connection handler.

Returns:

The set of statistics maintained by this connection handler.

initializeConnectionHandler

public void initializeConnectionHandler(ServerContext serverContext,
                               HTTPConnectionHandlerCfg config)
                                 throws org.forgerock.opendj.config.server.ConfigException,
                                        InitializationException

Description copied from class: ConnectionHandler

Initializes this connection handler provider based on the information in the provided connection handler configuration.

Specified by:

initializeConnectionHandler in class ConnectionHandler<HTTPConnectionHandlerCfg>

Parameters:

serverContext - The server context.

config - The connection handler configuration that contains the information to use to initialize this connection handler.

Throws:

org.forgerock.opendj.config.server.ConfigException - If an unrecoverable problem arises in the process of performing the initialization as a result of the server configuration.

InitializationException - If a problem occurs during initialization that is not related to the server configuration.

isConfigurationAcceptable

public boolean isConfigurationAcceptable(ConnectionHandlerCfg configuration,
                                List<LocalizableMessage> unacceptableReasons)

Description copied from class: ConnectionHandler

Indicates whether the provided configuration is acceptable for this connection handler. It should be possible to call this method on an uninitialized connection handler instance in order to determine whether the connection handler would be able to use the provided configuration.

Note that implementations which use a subclass of the provided configuration class will likely need to cast the configuration to the appropriate subclass type.

Overrides:

isConfigurationAcceptable in class ConnectionHandler<HTTPConnectionHandlerCfg>

Parameters:

configuration - The connection handler configuration for which to make the determination.

unacceptableReasons - A list that may be used to hold the reasons that the provided configuration is not acceptable.

Returns:

true if the provided configuration is acceptable for this connection handler, or false if not.

isConfigurationChangeAcceptable

public boolean isConfigurationChangeAcceptable(HTTPConnectionHandlerCfg configuration,
                                      List<LocalizableMessage> unacceptableReasons)

Description copied from interface: ConfigurationChangeListener

Indicates whether the proposed change to the configuration is acceptable to this change listener.

Specified by:

isConfigurationChangeAcceptable in interface ConfigurationChangeListener<HTTPConnectionHandlerCfg>

Parameters:

configuration - The new configuration containing the changes.

unacceptableReasons - A list that can be used to hold messages about why the provided configuration is not acceptable.

Returns:

Returns true if the proposed change is acceptable, or false if it is not.

keepStats

public boolean keepStats()

Indicates whether this connection handler should maintain usage statistics.

Returns:

true if this connection handler should maintain usage statistics, or false if not.

processServerShutdown

public void processServerShutdown(LocalizableMessage reason)

Description copied from interface: ServerShutdownListener

Indicates that the Directory Server has received a request to stop running and that this shutdown listener should take any action necessary to prepare for it.

Specified by:

processServerShutdown in interface ServerShutdownListener

Parameters:

reason - The human-readable reason for the shutdown.

start

public void start()

Overrides:

start in class Thread

run

public void run()

Description copied from class: ConnectionHandler

Operates in a loop, accepting new connections and ensuring that requests on those connections are handled properly.

Specified by:

run in interface Runnable

Specified by:

run in class ConnectionHandler<HTTPConnectionHandlerCfg>

toString

public void toString(StringBuilder buffer)

Description copied from class: ConnectionHandler

Appends a string representation of this connection handler to the provided buffer.

Specified by:

toString in class ConnectionHandler<HTTPConnectionHandlerCfg>

Parameters:

buffer - The buffer to which the information should be appended.