Java ISession类代码示例

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
@Override
public void messageArrived(String topic, MqttMessage mqttMessage) throws Exception {
    try {
        logger.info(String.format("messageArrived: %s, %s, %s", topic, new String(mqttMessage.getPayload()), client.getClientId()));
        IContext ctx = Core.createSystemContext();
        ISession session = ctx.getSession();
        MqttSubscription subscription = getSubscriptionForTopic(topic);
        if (subscription != null) {
            String microflow = subscription.getOnMessageMicroflow();
            logger.info(String.format("Calling onMessage microflow: %s, %s", microflow, client.getClientId()));
            final ImmutableMap map = ImmutableMap.of("Topic", topic, "Payload", new String(mqttMessage.getPayload()));
            logger.info("Parameter map: " + map);
            //Core.execute(ctx, microflow, true, map);
            Core.executeAsync(ctx, microflow, true, map);
        } else {
            logger.error(String.format("Cannot find microflow for message received on topic %s", topic));
        }
    } catch (Exception e) {
        logger.error(e);
    }
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
public static IContext getContextFor(IContext context, String username, boolean sudoContext) {
	if (username == null || username.isEmpty()) {
		throw new RuntimeException("Assertion: No username provided");
	}
	
	ISession session = getSessionFor(context, username);
	
	IContext c = session.createContext();
	if (sudoContext) {
		return c.getSudoContext();
	}
	
	return c;
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
private static ISession getSessionFor(IContext context, String username) {
	ISession session  = Core.getActiveSession(username);
	
	if (session == null) {
		IContext newContext = context.getSession().createContext().getSudoContext();
		newContext.startTransaction();
		try {
			session = initializeSessionForUser(newContext, username);
		} catch (CoreException e) {
			newContext.rollbackTransAction();
			
			throw new RuntimeException("Failed to initialize session for user: " + username + ": " + e.getMessage(), e);
		} finally {
			newContext.endTransaction();
		}
	}
	
	return session;
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
@Override
public java.lang.Boolean executeAction() throws Exception
{
	// BEGIN USER CODE
	ISession session = getContext().getSession();
	IContext newContext = session.createContext();
	Core.commit(newContext, mxObject);
	newContext.endTransaction();
	return true;
	// END USER CODE
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
public static IContext getContextFor(IContext context, String username, boolean sudoContext) {
	if (username == null || username.isEmpty()) {
		throw new RuntimeException("Assertion: No username provided");
	}
	
	if (username.equals(context.getSession().getUser().getName()))
	{
		return context;
	}
	else
	{
		ISession session = getSessionFor(context, username);
	
		IContext c = session.createContext();
		if (sudoContext) {
			return c.getSudoContext();
		}
	
		return c;
	}
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
public static IContext getContextFor(IContext context, String username, boolean sudoContext) {
	if (username == null || username.isEmpty()) {
		throw new RuntimeException("Assertion: No username provided");
	}

       // Session does not have a user when it's a scheduled event.
	if (context.getSession().getUser() != null && username.equals(context.getSession().getUser().getName()))
	{
		return context;
	}
	else
	{
		ISession session = getSessionFor(context, username);
	
		IContext c = session.createContext();
		if (sudoContext) {
			return c.createSudoClone();
		}
	
		return c;
	}
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
private static ISession getSessionFor(IContext context, String username) {
	ISession session  = Core.getActiveSession(username);
	
	if (session == null) {
		IContext newContext = context.getSession().createContext().createSudoClone();
		newContext.startTransaction();
		try {
			session = initializeSessionForUser(newContext, username);
		} catch (CoreException e) {
			newContext.rollbackTransAction();
			
			throw new RuntimeException("Failed to initialize session for user: " + username + ": " + e.getMessage(), e);
		} finally {
			newContext.endTransaction();
		}
	}
	
	return session;
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
public static TimeZone getSessionTimeZone( IContext context ) {
	ISession session = context.getSession();
	if ( session != null ) {
		TimeZone timeZone = session.getTimeZone();
		if ( timeZone != null )
			return timeZone;
		return getUTCTimeZone();
	}
	return getUTCTimeZone();
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
public static TimeZone getSessionTimeZone(IContext context) {
	ISession session = context.getSession();
	if (session != null) {
		TimeZone timeZone = session.getTimeZone();
		if (timeZone != null) {
			return timeZone;
		}
		return getUTCTimeZone();
	}
	return getUTCTimeZone();
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
private static ISession initializeSessionForUser(IContext context, String username) throws CoreException {
	IUser user = Core.getUser(context, username);

	if (user == null) {
		throw new RuntimeException("Assertion: user with username '" + username + "' does not exist");
	}

	return Core.initializeSession(user, null);
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
public static Boolean runMicroflowInBackground(final IContext context, final String microflowName,
		final IMendixObject paramObject)
{
	final ISession session = context.getSession();
	
	if (paramObject != null)
		session.retain(paramObject);
		
	MFSerialExecutor.instance().execute(new Runnable() {

		@Override
		public void run()
		{
			try
			{
				IContext c = Core.createSystemContext();
				if (paramObject != null) {
						Core.executeAsync(c, microflowName, true, paramObject).get(); //MWE: somehow, it only works with system context... well thats OK for now.						
				}
				else
					Core.executeAsync(c, microflowName, true, new HashMap<String,Object>()).get(); //MWE: somehow, it only works with system context... well thats OK for now.
			}
			catch (Exception e)
			{
				throw new RuntimeException("Failed to run Async: "+ microflowName + ": " + e.getMessage(), e);
			}
			
			finally {
				if (paramObject != null)
					session.release(paramObject.getId());
			}
		}
		
	});
	return true;
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
@Override
public Boolean executeAction() throws Exception
{
	// BEGIN USER CODE
	ISession session = getContext().getSession();
	IContext newContext = session.createContext();
	Core.commit(newContext, mxObject);
	newContext.endTransaction();
	return true;
	// END USER CODE
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
private static boolean sessionIsActive(ISession session) 
{
	for (ISession s : Core.getActiveSessions())
		if (s.equals(session))
			return true;
	return false;
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
public synchronized static void releaseOldLocks()
{
	Set<ISession> activeSessions = new HashSet<ISession>(Core.getActiveSessions()); //Lookup with Ord(log(n)) instead of Ord(n).
	
	List<Long> tbrm = new ArrayList<Long>();
	for (Entry<Long, ISession> lock : locks.entrySet()) 
		if (!activeSessions.contains(lock.getValue()))
			tbrm.add(lock.getKey());
	
	for(Long key : tbrm)
		locks.remove(key);		
}
 

import com.mendix.systemwideinterfaces.core.ISession; //导入依赖的package包/类
public static String getFingerPrint(ISession session)
{
	String agent = session.getUserAgent();
	if (agent != null)
		return base64Encode(agent.getBytes());
	
	return "";
	
}