Examples with EnhancementEngine org.apache.stanbol.enhancer.servicesapi.EnhancementEngine used on opensource projects

Example 16 with EnhancementEngine

use of org.apache.stanbol.enhancer.servicesapi.EnhancementEngine in project stanbol by apache.

the class AllActiveEnginesChain method update.

private void update() throws ChainException {
    Set<String> activeEngineNames = new HashSet<String>(tracker.getActiveEngineNames());
    if (activeEngineNames.isEmpty()) {
        throw new ChainException("Currently there are no active EnhancementEngines available");
    }
    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();
        }
    }
    Set<String> emptySet = Collections.emptySet();
    executionPlan = calculateExecutionPlan(getName(), activeEngines, //this Chain does not support optional engines
    emptySet, //only active meaning that no engines are missing
    emptySet);
    engineNames = Collections.unmodifiableSet(activeEngineNames);
}