Package org.opends.server.protocols.http
Class HTTPConnectionHandler
- java.lang.Object
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- java.lang.Thread
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- org.opends.server.api.DirectoryThread
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- org.opends.server.api.ConnectionHandler<HTTPConnectionHandlerCfg>
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- org.opends.server.protocols.http.HTTPConnectionHandler
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- 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.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.opends.server.api.DirectoryThread
DirectoryThread.Factory
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Nested classes/interfaces inherited from class java.lang.Thread
Thread.State, Thread.UncaughtExceptionHandler
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Field Summary
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Fields inherited from class org.opends.server.api.ConnectionHandler
LISTEN_TIMEOUT_MS
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Fields inherited from class org.opends.server.api.DirectoryThread
DIRECTORY_THREAD_GROUP
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Fields inherited from class java.lang.Thread
MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY
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Constructor Summary
Constructors Constructor Description HTTPConnectionHandler()Default constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description ConfigChangeResultapplyConfigurationChange(HTTPConnectionHandlerCfg config)Applies the configuration changes to this change listener.voidfinalizeConnectionHandler(org.forgerock.i18n.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.StringgetClassName()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.DNgetComponentEntryDN()Retrieves the DN of the configuration entry with which this alert generator is associated.StringgetConnectionHandlerName()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.StringgetProtocol()Retrieves the name of the protocol used to communicate with clients.StringgetShutdownListenerName()Retrieves the human-readable name for this shutdown listener.HTTPStatisticsgetStatTracker()Retrieves the set of statistics maintained by this connection handler.voidinitializeConnectionHandler(ServerContext serverContext, HTTPConnectionHandlerCfg config)Initializes this connection handler provider based on the information in the provided connection handler configuration.booleanisConfigurationAcceptable(ConnectionHandlerCfg configuration, List<org.forgerock.i18n.LocalizableMessage> unacceptableReasons)Indicates whether the provided configuration is acceptable for this connection handler.booleanisConfigurationChangeAcceptable(HTTPConnectionHandlerCfg configuration, List<org.forgerock.i18n.LocalizableMessage> unacceptableReasons)Indicates whether the proposed change to the configuration is acceptable to this change listener.booleankeepStats()Indicates whether this connection handler should maintain usage statistics.voidprocessServerShutdown(org.forgerock.i18n.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.voidrun()Operates in a loop, accepting new connections and ensuring that requests on those connections are handled properly.voidstart()voidtoString(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
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Methods inherited from class org.opends.server.api.DirectoryThread
getAssociatedTask, getCreationStackTrace, getDebugProperties, getParentThread, initiateShutdown, isShutdownInitiated, setAssociatedTask, startWork, stopWork
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Methods inherited from class java.lang.Thread
activeCount, checkAccess, clone, countStackFrames, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, stop, suspend, yield
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Constructor Detail
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HTTPConnectionHandler
public HTTPConnectionHandler()
Default constructor. It is invoked by reflection to create thisConnectionHandler.
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Method Detail
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applyConfigurationChange
public ConfigChangeResult applyConfigurationChange(HTTPConnectionHandlerCfg config)
Description copied from interface:ConfigurationChangeListenerApplies the configuration changes to this change listener.- Specified by:
applyConfigurationChangein interfaceConfigurationChangeListener<HTTPConnectionHandlerCfg>- Parameters:
config- The new configuration containing the changes.- Returns:
- Returns information about the result of changing the configuration.
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finalizeConnectionHandler
public void finalizeConnectionHandler(org.forgerock.i18n.LocalizableMessage finalizeReason)
Description copied from class:ConnectionHandlerCloses this connection handler so that it will no longer accept new client connections. Implementations should disconnect any existing connections.- Specified by:
finalizeConnectionHandlerin classConnectionHandler<HTTPConnectionHandlerCfg>- Parameters:
finalizeReason- The reason that this connection handler should be finalized.
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getAlerts
public Map<String,String> getAlerts()
Description copied from interface:AlertGeneratorRetrieves 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:
getAlertsin interfaceAlertGenerator- Returns:
- Information about the set of alerts that this generator may produce.
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getClassName
public String getClassName()
Description copied from interface:AlertGeneratorRetrieves the fully-qualified name of the Java class for this alert generator implementation.- Specified by:
getClassNamein interfaceAlertGenerator- Returns:
- The fully-qualified name of the Java class for this alert generator implementation.
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getClientConnections
public Collection<ClientConnection> getClientConnections()
Description copied from class:ConnectionHandlerRetrieves the set of active client connections that have been established through this connection handler.- Specified by:
getClientConnectionsin classConnectionHandler<HTTPConnectionHandlerCfg>- Returns:
- The set of active client connections that have been established through this connection handler.
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getComponentEntryDN
public DN getComponentEntryDN()
Description copied from class:ConnectionHandlerRetrieves the DN of the configuration entry with which this alert generator is associated.- Specified by:
getComponentEntryDNin interfaceAlertGenerator- Specified by:
getComponentEntryDNin classConnectionHandler<HTTPConnectionHandlerCfg>- Returns:
- The DN of the configuration entry with which this alert generator is associated.
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getConnectionHandlerName
public String getConnectionHandlerName()
Description copied from class:ConnectionHandlerRetrieves 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:
getConnectionHandlerNamein classConnectionHandler<HTTPConnectionHandlerCfg>- Returns:
- A unique name that may be used to refer to this connection handler.
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getEnabledSSLCipherSuites
public Collection<String> getEnabledSSLCipherSuites()
Description copied from class:ConnectionHandlerRetrieves 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:
getEnabledSSLCipherSuitesin classConnectionHandler<HTTPConnectionHandlerCfg>- Returns:
- The set of enabled SSL cipher suites configured for this connection handler.
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getEnabledSSLProtocols
public Collection<String> getEnabledSSLProtocols()
Description copied from class:ConnectionHandlerRetrieves 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:
getEnabledSSLProtocolsin classConnectionHandler<HTTPConnectionHandlerCfg>- Returns:
- The set of enabled SSL protocols configured for this connection handler.
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getListeners
public Collection<HostPort> getListeners()
Description copied from class:ConnectionHandlerRetrieves information about the listener(s) that will be used to accept client connections.- Specified by:
getListenersin classConnectionHandler<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.
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getProtocol
public String getProtocol()
Description copied from class:ConnectionHandlerRetrieves 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:
getProtocolin classConnectionHandler<HTTPConnectionHandlerCfg>- Returns:
- The name of the protocol used to communicate with clients.
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getShutdownListenerName
public String getShutdownListenerName()
Description copied from interface:ServerShutdownListenerRetrieves the human-readable name for this shutdown listener.- Specified by:
getShutdownListenerNamein interfaceServerShutdownListener- Returns:
- The human-readable name for this shutdown listener.
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getStatTracker
public HTTPStatistics getStatTracker()
Retrieves the set of statistics maintained by this connection handler.- Returns:
- The set of statistics maintained by this connection handler.
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initializeConnectionHandler
public void initializeConnectionHandler(ServerContext serverContext, HTTPConnectionHandlerCfg config) throws ConfigException, InitializationException
Description copied from class:ConnectionHandlerInitializes this connection handler provider based on the information in the provided connection handler configuration.- Specified by:
initializeConnectionHandlerin classConnectionHandler<HTTPConnectionHandlerCfg>- Parameters:
serverContext- The server context.config- The connection handler configuration that contains the information to use to initialize this connection handler.- Throws:
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.
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isConfigurationAcceptable
public boolean isConfigurationAcceptable(ConnectionHandlerCfg configuration, List<org.forgerock.i18n.LocalizableMessage> unacceptableReasons)
Description copied from class:ConnectionHandlerIndicates 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:
isConfigurationAcceptablein classConnectionHandler<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:
trueif the provided configuration is acceptable for this connection handler, orfalseif not.
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isConfigurationChangeAcceptable
public boolean isConfigurationChangeAcceptable(HTTPConnectionHandlerCfg configuration, List<org.forgerock.i18n.LocalizableMessage> unacceptableReasons)
Description copied from interface:ConfigurationChangeListenerIndicates whether the proposed change to the configuration is acceptable to this change listener.- Specified by:
isConfigurationChangeAcceptablein interfaceConfigurationChangeListener<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:
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trueif the proposed change is acceptable, orfalseif it is not.
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keepStats
public boolean keepStats()
Indicates whether this connection handler should maintain usage statistics.- Returns:
trueif this connection handler should maintain usage statistics, orfalseif not.
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processServerShutdown
public void processServerShutdown(org.forgerock.i18n.LocalizableMessage reason)
Description copied from interface:ServerShutdownListenerIndicates 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:
processServerShutdownin interfaceServerShutdownListener- Parameters:
reason- The human-readable reason for the shutdown.
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start
public void start()
Deliberately left unsynchronized, unlike the overridden
Thread.start(): the state this method touches is guarded by thewaitListenmonitor, and holding the thread's own monitor acrosswaitListen.wait()would blockThread.join().
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run
public void run()
Description copied from class:ConnectionHandlerOperates in a loop, accepting new connections and ensuring that requests on those connections are handled properly.- Specified by:
runin interfaceRunnable- Specified by:
runin classConnectionHandler<HTTPConnectionHandlerCfg>
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toString
public void toString(StringBuilder buffer)
Description copied from class:ConnectionHandlerAppends a string representation of this connection handler to the provided buffer.- Specified by:
toStringin classConnectionHandler<HTTPConnectionHandlerCfg>- Parameters:
buffer- The buffer to which the information should be appended.
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