Examples with EnhancementJobObserver org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandler.EnhancementJobObserver used on opensource projects

Example 1 with EnhancementJobObserver

use of org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandler.EnhancementJobObserver in project stanbol by apache.

the class EventJobManagerImpl method enhanceContent.

@Override
public void enhanceContent(ContentItem ci, Chain chain) throws EnhancementException {
    if (ci == null) {
        throw new IllegalArgumentException("The parsed contentItem MUST NOT be NULL!");
    }
    if (chain == null) {
        throw new IllegalArgumentException("Unable to enhance ContentItem '" + ci.getUri() + "' because NULL was passed as enhancement chain");
    }
    long start = System.currentTimeMillis();
    enhancementJobManagerLog.debug(">> enhance {} with chain {}", ci.getUri(), chain.getName());
    boolean isDefaultChain = chain.equals(chainManager.getDefault());
    EnhancementJob job = new EnhancementJob(ci, chain.getName(), chain.getExecutionPlan(), isDefaultChain);
    // start the execution
    // wait for the results
    EnhancementJobObserver observer = jobHandler.register(job);
    // now wait for the execution to finish for the configured maximum time
    boolean completed = observer.waitForCompletion(maxEnhancementJobWaitTime);
    if (!completed) {
        // throw timeout exception
        StringBuilder sb = new StringBuilder("Status:\n");
        ExecutionMetadata em = ExecutionMetadata.parseFrom(job.getExecutionMetadata(), ci.getUri());
        for (Entry<String, Execution> ex : em.getEngineExecutions().entrySet()) {
            sb.append("  -").append(ex.getKey()).append(": ").append(ex.getValue().getStatus()).append('\n');
        }
        throw new ChainException("Execution timeout after " + ((System.currentTimeMillis() - start) / 1000f) + "sec (timeout:" + (maxEnhancementJobWaitTime / 1000) + "sec) for ContentItem " + ci.getUri() + "\n" + sb.toString() + " \n To change the timeout change value of property '" + MAX_ENHANCEMENT_JOB_WAIT_TIME + "' for the service " + getClass());
    }
    log.info("Execution of Chain {} {} after {}ms for ContentItem {}", new Object[] { chain.getName(), job.isFailed() ? "failed" : "finished", System.currentTimeMillis() - start, job.getContentItem().getUri() });
    // ci.getMetadata().addAll(job.getExecutionMetadata());
    if (job.isFailed()) {
        Exception e = job.getError();
        EnhancementJobHandler.logJobInfo(log, job, null, true);
        logExecutionMetadata(enhancementJobManagerLog, job, true);
        log.warn("ExecutionMetadata: ");
        for (Iterator<Triple> it = job.getExecutionMetadata().iterator(); it.hasNext(); log.warn(it.next().toString())) ;
        if (e instanceof SecurityException) {
            throw (SecurityException) e;
        } else if (e instanceof EnhancementException) {
            throw (EnhancementException) e;
        } else {
            throw new ChainException(job.getErrorMessage(), e);
        }
    }
    if (!job.isFinished()) {
        log.warn("Execution finished, but Job is not finished!");
        EnhancementJobHandler.logJobInfo(log, job, null, true);
        logExecutionMetadata(log, job, true);
        throw new ChainException("EnhancementJobManager was deactivated while" + " enhancing the passed ContentItem " + job.getContentItem() + " (EnhancementJobManager type: " + getClass() + ")");
    } else {
        // log infos about the execution times to the enhancementJobManager
        EnhancementJobHandler.logExecutionTimes(enhancementJobManagerLog, job);
        logExecutionMetadata(enhancementJobManagerLog, job, false);
    }
}