Package de.aristaflow.adept2.ui.htmlgui.httpservice

Class EmbdServContHTTPService

java.lang.Object

de.aristaflow.adept2.base.service.AbstractADEPT2Service

de.aristaflow.adept2.base.service.AbstractAuthenticatedService

de.aristaflow.adept2.ui.htmlgui.httpservice.EmbdServContHTTPService

All Implemented Interfaces:

ADEPT2Service, AuthenticatingService, LogService, ServiceThreadHandling, HTTPService

public class EmbdServContHTTPService
extends AbstractAuthenticatedService
implements HTTPService

Simple HTTP service based on a ServletService (an embedded servlet container). This delegates to the AristaFlowHTTPService-servlet implementingdoGet and doPost-methods.

Author:

Kevin Goeser, Ulrich Kreher

Nested Class Summary

Nested classes/interfaces inherited from class de.aristaflow.adept2.base.service.AbstractADEPT2Service

AbstractADEPT2Service.ActiveSessions

Field Summary

Fields

Modifier and Type	Field	Description
protected final AristaFlowHTTPService	httpService	The HTTP service (servlet) handling the requests.
protected static final String	WEB_APP_CONTEXT	The hierarchical context of the servlet.
protected static final String	WEB_APP_NAME	The name used for the publishing the servlet, that is as servlet name.

Fields inherited from class de.aristaflow.adept2.base.service.AbstractAuthenticatedService

CFG_EARLY_SERVICEAUTH_ORGPOSID, CFG_EARLY_SERVICEAUTH_ORGPOSNAME, CFG_EARLY_SERVICEAUTH_PASSWORD, CFG_EARLY_SERVICEAUTH_USERNAME, CFG_SERVICEAUTH_ORGPOSID, CFG_SERVICEAUTH_ORGPOSNAME, CFG_SERVICEAUTH_PASSWORD, CFG_SERVICEAUTH_USERNAME

Fields inherited from class de.aristaflow.adept2.base.service.AbstractADEPT2Service

CONF_CSV_LOGGING, configuration, logger, registry, runtimeRequiredServices, startupRequiredServices

Constructor Summary

Constructors

Constructor	Description
EmbdServContHTTPService(Configuration configuration, Registry registry)	Registers the HTTP-service-servlet at an embedded servlet container.

Method Summary

Modifier and Type	Method	Description
void	deregisterReplyHandler(SessionToken session, String sessionID)	Deregisters a reply handler for the activity with the designated sessionID.
boolean	isActive()	Allows waiting reply handlers to retrieve the state of the HTTP-service.
void	registerReplyHandler(SessionToken session, String sessionID, HTTPReplyHandler replayHandler)	Registers a reply handler for the activity with the designated sessionID.
void	shutdown(boolean emergency)	Removes the HTTP-service-servlet from the ServletService.
void	start()	Adds the HTTP-service-servlet to the ServletService.

Methods inherited from class de.aristaflow.adept2.base.service.AbstractAuthenticatedService

_sessionActive, authenticateService, awaitActiveSessions, createChildSession, createSession, getAgent, getSecurityManager, getSessionFactory, getStartupRequired, getTopLevelAgent, getUserCredentials, globalSecurityManagerAvailable, init, isEarlyService, sessionHasAllCapabilities, sessionHasAllTopLevelCapabilities, sessionHasOneCapability, sessionHasOneTopLevelCapability

Methods inherited from class de.aristaflow.adept2.base.service.AbstractADEPT2Service

_sessionFinished, activeOrInvalidServiceStateException, changeLogContext, changeLogContext, changeLogContext, consoleLog, csvLoggingEnabled, getClassSpecificJulLogger, getDependencyRegistry, getLocalUris, getLogger, getRelease, getRuntimeRequiredServices, getServiceInstanceName, getStartupRequiredServices, getURIs, isSessionActive, isShutdown, logMethodEntry, logMethodEntry, logMethodEntry, logMethodExit, logMethodExit, ping, preShutdown, privilegeSession, privilegeThread, revertLogContextChanges, sessionActive, sessionActive, sessionActive, sessionActive, sessionFinished, sessionFinished, signalShutdown, signalStart, unprivilegeThread

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.aristaflow.adept2.base.service.ADEPT2Service

getLocalUris, getRelease, getRuntimeRequiredServices, getServiceInstanceName, getStartupRequiredServices, getURIs, init, ping, preShutdown

Field Details

WEB_APP_NAME

protected static final String WEB_APP_NAME

The name used for the publishing the servlet, that is as servlet name.

See Also:

• Constant Field Values

WEB_APP_CONTEXT

protected static final String WEB_APP_CONTEXT

The hierarchical context of the servlet.

See Also:

• Constant Field Values

httpService

protected final AristaFlowHTTPService httpService

The HTTP service (servlet) handling the requests.

Constructor Details

EmbdServContHTTPService

public EmbdServContHTTPService(Configuration configuration,
 Registry registry)
                        throws ConfigurationException

Registers the HTTP-service-servlet at an embedded servlet container.

Parameters:

configuration - The configuration providing the user credentials for this service.

registry - The registry for accessing the servlet services.

Throws:

ConfigurationException - If there are problems parsing the user credentials from the configuration, a ConfigurationException will be thrown.

Method Details

registerReplyHandler

public void registerReplyHandler(SessionToken session,
 String sessionID,
 HTTPReplyHandler replayHandler)
                          throws MalformedURLException

Description copied from interface: HTTPService

Registers a reply handler for the activity with the designated sessionID. This creates an own URL for the reply handler. It will be called as soon as a HTTP-request (the reply for the activity) is received by this HTTP-service.

Specified by:

registerReplyHandler in interface HTTPService

Parameters:

session - The session which is used to check for access rights on this method.

sessionID - The session ID for the executed activity. It is used to create an appropriate URL.

replayHandler - The handler for the HTTP-replies sent to this service.

Throws:

MalformedURLException - If the designated sessionID does not allow to create a valid URL, a MalformedURLException will be thrown.

deregisterReplyHandler

public void deregisterReplyHandler(SessionToken session,
 String sessionID)

Description copied from interface: HTTPService

Deregisters a reply handler for the activity with the designated sessionID. A reply handler may be deregistered any time. In case a reply handling is currently running, it will be allowed to finish.

Specified by:

deregisterReplyHandler in interface HTTPService

Parameters:

session - The session which is used to check for access rights on this method.

sessionID - The session ID identifying the executed activity and therefore also the handler for the reply sent via HTTP.

start

public void start()
           throws AbortServiceException

Adds the HTTP-service-servlet to the ServletService.

Specified by:

start in interface ADEPT2Service

Overrides:

start in class AbstractADEPT2Service

Throws:

AbortServiceException - If the base URL (servlet URL having the URL-pattern appended) cannot be created, an AbortServiceException will be thrown.

ServiceNotKnownException - If the servlet container cannot be retrieved from the registry, a ServiceNotKnownException will be thrown.

shutdown

public void shutdown(boolean emergency)

Removes the HTTP-service-servlet from the ServletService.

Specified by:

shutdown in interface ADEPT2Service

Overrides:

shutdown in class AbstractAuthenticatedService

Parameters:

emergency - Whether the shutdown will be an emergency shutdown.

isActive

public boolean isActive()

Allows waiting reply handlers to retrieve the state of the HTTP-service. Please note that this method blocks when starting until the service is started.

Overrides:

isActive in class AbstractADEPT2Service

Returns:

Whether this service is active, that is started and not shut down.