Examples of EnhancementEngine

org.apache.stanbol.enhancer.servicesapi.EnhancementEngine
Interface to internal or external semantic enhancement engines. There will usually be several of those, that the EnhancementJobManager uses to enhance content items.

Examples of org.apache.stanbol.enhancer.servicesapi.EnhancementEngine

        List<EnhancementEngine> availableEngines = new ArrayList<EnhancementEngine>(chain.size());
        Set<String> optionalEngines = new HashSet<String>();
        Set<String> missingEngines = new HashSet<String>();
        for(Entry<String,Map<String,List<String>>> entry : chain.entrySet()){
            boolean optional = getState(entry.getValue(),"optional");
            EnhancementEngine engine = tracker.getEngine(entry.getKey());
            if(engine != null){
                availableEngines.add(engine);
            } else {
                missingEngines.add(entry.getKey());
            }

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Examples of org.apache.stanbol.enhancer.servicesapi.EnhancementEngine

        }
        List<EnhancementEngine> activeEngines = new ArrayList<EnhancementEngine>(activeEngineNames.size());
        Iterator<String> names = activeEngineNames.iterator();
        while(names.hasNext()){
            String name = names.next();
            EnhancementEngine engine = tracker.getEngine(name);
            if(engine != null){
                activeEngines.add(engine);
            } else { //looks like the config has changed in the meantime
                names.remove();
            }

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Examples of org.apache.stanbol.enhancer.servicesapi.EnhancementEngine

     */
    private void processEvent(EnhancementJob job, NonLiteral execution) {
        NonLiteral executionNode = job.getExecutionNode(execution);
        String engineName = getEngine(job.getExecutionPlan(), executionNode);
        //(1) execute the parsed ExecutionNode
        EnhancementEngine engine = engineManager.getEngine(engineName);
        if(engine != null){
            //execute the engine
            Exception exception = null;
            int engineState;
            try {
                engineState = engine.canEnhance(job.getContentItem());
            } catch (EngineException e) {
                exception = e;
                log.warn("Unable to check if engine '" + engineName
                    + "'(type: " + engine.getClass() + ") can enhance ContentItem '"
                    + job.getContentItem().getUri()+ "'!",e);
                engineState = EnhancementEngine.CANNOT_ENHANCE;
            }
            if(engineState == EnhancementEngine.ENHANCE_SYNCHRONOUS){
                //ensure that this engine exclusively access the content item
                log.debug("++ w: {}: {}","start sync execution", engine.getName());
                job.getLock().writeLock().lock();
                log.debug(">> w: {}: {}","start sync execution", engine.getName());
                try {
                    engine.computeEnhancements(job.getContentItem());
                    job.setCompleted(execution);
                } catch (EngineException e){
                    job.setFailed(execution, engine, e);
                } finally{
                    log.debug("<< w: {}: {}","finished sync execution", engine.getName());
                    job.getLock().writeLock().unlock();
                }
            } else if(engineState == EnhancementEngine.ENHANCE_ASYNC){
                try {
                    log.debug("++ n: start async execution of Engine {}",engine.getName());
                    engine.computeEnhancements(job.getContentItem());
                    log.debug("++ n: finished async execution of Engine {}",engine.getName());
                    job.setCompleted(execution);
                } catch (EngineException e) {
                    job.setFailed(execution, engine, e);
                }
            } else { //CANNOT_ENHANCE

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Examples of org.apache.stanbol.enhancer.servicesapi.EnhancementEngine

        if(engineRefs == null || engineRefs.isEmpty()){
            throw new WebApplicationException(Response.Status.NOT_FOUND);
        }
        engines = new ArrayList<EnhancementEngine>(engineRefs.size());
        for(Iterator<ServiceReference> it = engineRefs.iterator();it.hasNext();){
            EnhancementEngine engine = engineManager.getEngine(it.next());
            if(engine == null){ //removed in the meantime
                it.remove();
            } else {
                engines.add(engine);
            }

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