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

Example 1 with ChainException

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

the class GenericEnhancerUiResource method getExecutionNodes.

/**
 * Getter for the executionNodes
 *
 * @return
 */
public Set<ExecutionNode> getExecutionNodes() {
    if (_executionNodes == null) {
        ImmutableGraph ep;
        try {
            ep = chain.getExecutionPlan();
        } catch (ChainException e) {
            ep = null;
        }
        if (ep != null) {
            _executionNodes = new LinkedHashSet<ExecutionNode>();
            Set<BlankNodeOrIRI> processed = new HashSet<BlankNodeOrIRI>();
            Set<BlankNodeOrIRI> next;
            do {
                next = ExecutionPlanHelper.getExecutable(ep, processed);
                for (BlankNodeOrIRI node : next) {
                    _executionNodes.add(new ExecutionNode(ep, node));
                }
                processed.addAll(next);
            } while (!next.isEmpty());
        }
    }
    return _executionNodes;
}

Example 2 with ChainException

use of org.apache.stanbol.enhancer.servicesapi.ChainException 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);
    }
}

Example 3 with ChainException

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

the class AbstractEnhancerResource method getExecutionPlan.

/*@OPTIONS
    public Response handleCorsPreflight(@Context HttpHeaders headers) {
        ResponseBuilder res = Response.ok();
        enableCORS(servletContext, res, headers);
        return res.build();
    }

    @OPTIONS
    @Path("/ep")
    public Response handleEpCorsPreflight(@Context HttpHeaders headers) {
        ResponseBuilder res = Response.ok();
        enableCORS(servletContext, res, headers,HttpMethod.OPTIONS,HttpMethod.GET);
        return res.build();
    }*/
@GET
@Path("/ep")
@Produces(value = { JSON_LD, APPLICATION_JSON, N3, N_TRIPLE, RDF_JSON, RDF_XML, TURTLE, X_TURTLE })
public Response getExecutionPlan(@Context HttpHeaders headers) {
    ResponseBuilder res;
    Chain chain = null;
    try {
        chain = getChain();
        res = Response.ok(chain.getExecutionPlan());
    } catch (ChainException e) {
        String chainName = chain == null ? "" : ("'" + chain.getName() + "' ");
        res = Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity("The Enhancement Chain " + chainName + "is currently" + "not executeable (message: " + e.getMessage() + ")!");
    }
    // addCORSOrigin(servletContext, res, headers);
    return res.build();
}

Example 4 with ChainException

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

the class EventJobManagerImpl method getActiveEngines.

@Override
public List<EnhancementEngine> getActiveEngines() {
    // This implementation return the list of active engined for the default
    // Chain in the order they would be executed
    Chain defaultChain = chainManager.getDefault();
    if (defaultChain == null) {
        throw new IllegalStateException("Currently no enhancement chain is " + "active. Please configure a Chain or enable the default chain");
    }
    ImmutableGraph ep;
    try {
        ep = defaultChain.getExecutionPlan();
    } catch (ChainException e) {
        throw new IllegalStateException("Unable to get Execution Plan for " + "default enhancement chain (name: '" + defaultChain.getName() + "'| class: '" + defaultChain.getClass() + "')!", e);
    }
    return ExecutionPlanHelper.getActiveEngines(engineManager, ep);
}

Example 5 with ChainException

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

the class EventJobManagerImpl method enhanceContent.

@Override
public void enhanceContent(ContentItem ci) throws EnhancementException {
    Chain defaultChain = chainManager.getDefault();
    if (defaultChain == null) {
        throw new ChainException("Unable to enhance ContentItem '" + ci.getUri() + "' because currently no enhancement chain is active. Please" + "configure a Chain or enable the default chain");
    }
    enhanceContent(ci, defaultChain);
}