Java Code Examples for org.apache.camel.Exchange#setException()

The following examples show how to use org.apache.camel.Exchange#setException() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may want to check out the right sidebar which shows the related API usage.
Example 1
Source Project: gumtree-spoon-ast-diff   File: file_s.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Creates the {@link ProcessorExchangePair} which holds the processor and exchange to be send out.
 * <p/>
 * You <b>must</b> use this method to create the instances of {@link ProcessorExchangePair} as they
 * need to be specially prepared before use.
 *
 * @param index        the index
 * @param processor    the processor
 * @param exchange     the exchange
 * @param routeContext the route context
 * @return prepared for use
 */
protected ProcessorExchangePair createProcessorExchangePair(int index, Processor processor, Exchange exchange,
                                                            RouteContext routeContext) {
    Processor prepared = processor;

    // set property which endpoint we send to
    setToEndpoint(exchange, prepared);

    // rework error handling to support fine grained error handling
    prepared = createErrorHandler(routeContext, exchange, prepared);

    // invoke on prepare on the exchange if specified
    if (onPrepare != null) {
        try {
            onPrepare.process(exchange);
        } catch (Exception e) {
            exchange.setException(e);
        }
    }
    return new DefaultProcessorExchangePair(index, processor, prepared, exchange);
}
 
Example 2
Source Project: gumtree-spoon-ast-diff   File: file_t.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Creates the {@link ProcessorExchangePair} which holds the processor and exchange to be send out.
 * <p/>
 * You <b>must</b> use this method to create the instances of {@link ProcessorExchangePair} as they
 * need to be specially prepared before use.
 *
 * @param index        the index
 * @param processor    the processor
 * @param exchange     the exchange
 * @param routeContext the route context
 * @return prepared for use
 */
protected ProcessorExchangePair createProcessorExchangePair(int index, Processor processor, Exchange exchange,
                                                            RouteContext routeContext) {
    Processor prepared = processor;

    // set property which endpoint we send to
    setToEndpoint(exchange, prepared);

    // rework error handling to support fine grained error handling
    prepared = createErrorHandler(routeContext, exchange, prepared);

    // invoke on prepare on the exchange if specified
    if (onPrepare != null) {
        try {
            onPrepare.process(exchange);
        } catch (Exception e) {
            exchange.setException(e);
        }
    }
    return new DefaultProcessorExchangePair(index, processor, prepared, exchange);
}
 
Example 3
Source Project: gumtree-spoon-ast-diff   File: file_s.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Creates the {@link ProcessorExchangePair} which holds the processor and exchange to be send out.
 * <p/>
 * You <b>must</b> use this method to create the instances of {@link ProcessorExchangePair} as they
 * need to be specially prepared before use.
 *
 * @param index        the index
 * @param processor    the processor
 * @param exchange     the exchange
 * @param routeContext the route context
 * @return prepared for use
 */
protected ProcessorExchangePair createProcessorExchangePair(int index, Processor processor, Exchange exchange,
                                                            RouteContext routeContext) {
    Processor prepared = processor;

    // set property which endpoint we send to
    setToEndpoint(exchange, prepared);

    // rework error handling to support fine grained error handling
    prepared = createErrorHandler(routeContext, exchange, prepared);

    // invoke on prepare on the exchange if specified
    if (onPrepare != null) {
        try {
            onPrepare.process(exchange);
        } catch (Exception e) {
            exchange.setException(e);
        }
    }
    return new DefaultProcessorExchangePair(index, processor, prepared, exchange);
}
 
Example 4
Source Project: gumtree-spoon-ast-diff   File: original.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Creates the {@link ProcessorExchangePair} which holds the processor and exchange to be send out.
 * <p/>
 * You <b>must</b> use this method to create the instances of {@link ProcessorExchangePair} as they
 * need to be specially prepared before use.
 *
 * @param index        the index
 * @param processor    the processor
 * @param exchange     the exchange
 * @param routeContext the route context
 * @return prepared for use
 */
protected ProcessorExchangePair createProcessorExchangePair(int index, Processor processor, Exchange exchange,
                                                            RouteContext routeContext) {
    Processor prepared = processor;

    // set property which endpoint we send to
    setToEndpoint(exchange, prepared);

    // rework error handling to support fine grained error handling
    prepared = createErrorHandler(routeContext, exchange, prepared);

    // invoke on prepare on the exchange if specified
    if (onPrepare != null) {
        try {
            onPrepare.process(exchange);
        } catch (Exception e) {
            exchange.setException(e);
        }
    }
    return new DefaultProcessorExchangePair(index, processor, prepared, exchange);
}
 
Example 5
Source Project: gumtree-spoon-ast-diff   File: patched.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Creates the {@link ProcessorExchangePair} which holds the processor and exchange to be send out.
 * <p/>
 * You <b>must</b> use this method to create the instances of {@link ProcessorExchangePair} as they
 * need to be specially prepared before use.
 *
 * @param index        the index
 * @param processor    the processor
 * @param exchange     the exchange
 * @param routeContext the route context
 * @return prepared for use
 */
protected ProcessorExchangePair createProcessorExchangePair(int index, Processor processor, Exchange exchange,
                                                            RouteContext routeContext) {
    Processor prepared = processor;

    // set property which endpoint we send to
    setToEndpoint(exchange, prepared);

    // rework error handling to support fine grained error handling
    prepared = createErrorHandler(routeContext, exchange, prepared);

    // invoke on prepare on the exchange if specified
    if (onPrepare != null) {
        try {
            onPrepare.process(exchange);
        } catch (Exception e) {
            exchange.setException(e);
        }
    }
    return new DefaultProcessorExchangePair(index, processor, prepared, exchange);
}
 
Example 6
Source Project: syndesis   File: ForUpdateCustomizer.java    License: Apache License 2.0 5 votes vote down vote up
public void beforeProducer(final Exchange exchange) throws IOException {
    // parse input json and extract Id field
    final Message in = exchange.getIn();
    final String body = in.getBody(String.class);

    if (body == null) {
        return;
    }

    final ObjectNode node = (ObjectNode) JsonUtils.reader().readTree(body);

    final JsonNode idProperty = node.remove(idPropertyName);
    if (idProperty == null) {
        exchange.setException(
            new SalesforceException("Missing option value for Id or " + SalesforceEndpointConfig.SOBJECT_EXT_ID_NAME, 404));

        return;
    }

    final String idValue = idProperty.textValue();
    if ("Id".equals(idPropertyName)) {
        in.setHeader(SalesforceEndpointConfig.SOBJECT_ID, idValue);
    } else {
        in.setHeader(SalesforceEndpointConfig.SOBJECT_EXT_ID_VALUE, idValue);
    }

    // base fields are not allowed to be updated
    clearBaseFields(node);

    // update input json
    in.setBody(JsonUtils.writer().writeValueAsString(node));
}
 
Example 7
@Test
public void shouldNotConvertFailedExchanges() throws Exception {
    final ComponentProxyComponent component = setUpComponent("salesforce-create-sobject");
    final Exchange exchange = new DefaultExchange(context);
    final Message out = exchange.getOut();

    exchange.setException(new Exception());
    out.setBody("wat");

    component.getAfterProducer().process(exchange);

    Assertions.assertThat(out.getBody()).isEqualTo("wat");
}
 
Example 8
public Object evaluate(Exchange exchange) {
    try {
        XMLEventReader reader = exchange.getIn().getMandatoryBody(XMLEventReader.class);

        return createIterator(reader);
    } catch (CamelExchangeException e) {
        exchange.setException(e);
        return null;
    }
}
 
Example 9
Source Project: gumtree-spoon-ast-diff   File: file_t.java    License: Apache License 2.0 5 votes vote down vote up
public boolean process(Exchange exchange, AsyncCallback callback) {
    final AtomicExchange result = new AtomicExchange();
    Iterable<ProcessorExchangePair> pairs = null;

    try {
        boolean sync = true;

        pairs = createProcessorExchangePairs(exchange);

        if (isParallelProcessing()) {
            // ensure an executor is set when running in parallel
            ObjectHelper.notNull(executorService, "executorService", this);
            doProcessParallel(exchange, result, pairs, isStreaming(), callback);
        } else {
            sync = doProcessSequential(exchange, result, pairs, callback);
        }

        if (!sync) {
            // the remainder of the multicast will be completed async
            // so we break out now, then the callback will be invoked which then continue routing from where we left here
            return false;
        }
    } catch (Throwable e) {
        exchange.setException(e);
        // unexpected exception was thrown, maybe from iterator etc. so do not regard as exhausted
        // and do the done work
        doDone(exchange, null, pairs, callback, true, false);
        return true;
    }

    // multicasting was processed successfully
    // and do the done work
    Exchange subExchange = result.get() != null ? result.get() : null;
    doDone(exchange, subExchange, pairs, callback, true, true);
    return true;
}
 
Example 10
Source Project: gumtree-spoon-ast-diff   File: file_s.java    License: Apache License 2.0 4 votes vote down vote up
protected boolean doProcessSequential(Exchange original, AtomicExchange result, Iterable<ProcessorExchangePair> pairs, AsyncCallback callback) throws Exception {
    AtomicInteger total = new AtomicInteger();
    Iterator<ProcessorExchangePair> it = pairs.iterator();

    while (it.hasNext()) {
        ProcessorExchangePair pair = it.next();
        Exchange subExchange = pair.getExchange();
        updateNewExchange(subExchange, total.get(), pairs, it);

        boolean sync = doProcessSequential(original, result, pairs, it, pair, callback, total);
        if (!sync) {
            if (LOG.isTraceEnabled()) {
                LOG.trace("Processing exchangeId: {} is continued being processed asynchronously", pair.getExchange().getExchangeId());
            }
            // the remainder of the multicast will be completed async
            // so we break out now, then the callback will be invoked which then continue routing from where we left here
            return false;
        }

        if (LOG.isTraceEnabled()) {
            LOG.trace("Processing exchangeId: {} is continued being processed synchronously", pair.getExchange().getExchangeId());
        }

        // Decide whether to continue with the multicast or not; similar logic to the Pipeline
        // remember to test for stop on exception and aggregate before copying back results
        boolean continueProcessing = PipelineHelper.continueProcessing(subExchange, "Sequential processing failed for number " + total.get(), LOG);
        if (stopOnException && !continueProcessing) {
            if (subExchange.getException() != null) {
                // wrap in exception to explain where it failed
                CamelExchangeException cause = new CamelExchangeException("Sequential processing failed for number " + total.get(), subExchange, subExchange.getException());
                subExchange.setException(cause);
            }
            // we want to stop on exception, and the exception was handled by the error handler
            // this is similar to what the pipeline does, so we should do the same to not surprise end users
            // so we should set the failed exchange as the result and be done
            result.set(subExchange);
            return true;
        }

        LOG.trace("Sequential processing complete for number {} exchange: {}", total, subExchange);

        if (parallelAggregate) {
            doAggregateInternal(getAggregationStrategy(subExchange), result, subExchange);
        } else {
            doAggregate(getAggregationStrategy(subExchange), result, subExchange);
        }

        total.incrementAndGet();
    }

    LOG.debug("Done sequential processing {} exchanges", total);

    return true;
}
 
Example 11
Source Project: gumtree-spoon-ast-diff   File: file_s.java    License: Apache License 2.0 4 votes vote down vote up
protected boolean doProcessSequential(Exchange original, AtomicExchange result, Iterable<ProcessorExchangePair> pairs, AsyncCallback callback) throws Exception {
    AtomicInteger total = new AtomicInteger();
    Iterator<ProcessorExchangePair> it = pairs.iterator();

    while (it.hasNext()) {
        ProcessorExchangePair pair = it.next();
        Exchange subExchange = pair.getExchange();
        updateNewExchange(subExchange, total.get(), pairs, it);

        boolean sync = doProcessSequential(original, result, pairs, it, pair, callback, total);
        if (!sync) {
            if (LOG.isTraceEnabled()) {
                LOG.trace("Processing exchangeId: {} is continued being processed asynchronously", pair.getExchange().getExchangeId());
            }
            // the remainder of the multicast will be completed async
            // so we break out now, then the callback will be invoked which then continue routing from where we left here
            return false;
        }

        if (LOG.isTraceEnabled()) {
            LOG.trace("Processing exchangeId: {} is continued being processed synchronously", pair.getExchange().getExchangeId());
        }

        // Decide whether to continue with the multicast or not; similar logic to the Pipeline
        // remember to test for stop on exception and aggregate before copying back results
        boolean continueProcessing = PipelineHelper.continueProcessing(subExchange, "Sequential processing failed for number " + total.get(), LOG);
        if (stopOnException && !continueProcessing) {
            if (subExchange.getException() != null) {
                // wrap in exception to explain where it failed
                CamelExchangeException cause = new CamelExchangeException("Sequential processing failed for number " + total.get(), subExchange, subExchange.getException());
                subExchange.setException(cause);
            }
            // we want to stop on exception, and the exception was handled by the error handler
            // this is similar to what the pipeline does, so we should do the same to not surprise end users
            // so we should set the failed exchange as the result and be done
            result.set(subExchange);
            return true;
        }

        LOG.trace("Sequential processing complete for number {} exchange: {}", total, subExchange);

        if (parallelAggregate) {
            doAggregateInternal(getAggregationStrategy(subExchange), result, subExchange);
        } else {
            doAggregate(getAggregationStrategy(subExchange), result, subExchange);
        }

        total.incrementAndGet();
    }

    LOG.debug("Done sequential processing {} exchanges", total);

    return true;
}
 
Example 12
Source Project: gumtree-spoon-ast-diff   File: file_s.java    License: Apache License 2.0 4 votes vote down vote up
/**
 * Common work which must be done when we are done multicasting.
 * <p/>
 * This logic applies for both running synchronous and asynchronous as there are multiple exist points
 * when using the asynchronous routing engine. And therefore we want the logic in one method instead
 * of being scattered.
 *
 * @param original     the original exchange
 * @param subExchange  the current sub exchange, can be <tt>null</tt> for the synchronous part
 * @param pairs        the pairs with the exchanges to process
 * @param callback     the callback
 * @param doneSync     the <tt>doneSync</tt> parameter to call on callback
 * @param forceExhaust whether or not error handling is exhausted
 */
protected void doDone(Exchange original, Exchange subExchange, final Iterable<ProcessorExchangePair> pairs,
                      AsyncCallback callback, boolean doneSync, boolean forceExhaust) {

    // we are done so close the pairs iterator
    if (pairs != null && pairs instanceof Closeable) {
        IOHelper.close((Closeable) pairs, "pairs", LOG);
    }

    AggregationStrategy strategy = getAggregationStrategy(subExchange);
    // invoke the on completion callback
    if (strategy instanceof CompletionAwareAggregationStrategy) {
        ((CompletionAwareAggregationStrategy) strategy).onCompletion(subExchange);
    }

    // cleanup any per exchange aggregation strategy
    removeAggregationStrategyFromExchange(original);

    // we need to know if there was an exception, and if the stopOnException option was enabled
    // also we would need to know if any error handler has attempted redelivery and exhausted
    boolean stoppedOnException = false;
    boolean exception = false;
    boolean exhaust = forceExhaust || subExchange != null && (subExchange.getException() != null || ExchangeHelper.isRedeliveryExhausted(subExchange));
    if (original.getException() != null || subExchange != null && subExchange.getException() != null) {
        // there was an exception and we stopped
        stoppedOnException = isStopOnException();
        exception = true;
    }

    // must copy results at this point
    if (subExchange != null) {
        if (stoppedOnException) {
            // if we stopped due an exception then only propagte the exception
            original.setException(subExchange.getException());
        } else {
            // copy the current result to original so it will contain this result of this eip
            ExchangeHelper.copyResults(original, subExchange);
        }
    }

    // .. and then if there was an exception we need to configure the redelivery exhaust
    // for example the noErrorHandler will not cause redelivery exhaust so if this error
    // handled has been in use, then the exhaust would be false (if not forced)
    if (exception) {
        // multicast uses error handling on its output processors and they have tried to redeliver
        // so we shall signal back to the other error handlers that we are exhausted and they should not
        // also try to redeliver as we will then do that twice
        original.setProperty(Exchange.REDELIVERY_EXHAUSTED, exhaust);
    }

    callback.done(doneSync);
}
 
Example 13
Source Project: gumtree-spoon-ast-diff   File: file_t.java    License: Apache License 2.0 4 votes vote down vote up
protected boolean doProcessSequential(Exchange original, AtomicExchange result, Iterable<ProcessorExchangePair> pairs, AsyncCallback callback) throws Exception {
    AtomicInteger total = new AtomicInteger();
    Iterator<ProcessorExchangePair> it = pairs.iterator();

    while (it.hasNext()) {
        ProcessorExchangePair pair = it.next();
        Exchange subExchange = pair.getExchange();
        updateNewExchange(subExchange, total.get(), pairs, it);

        boolean sync = doProcessSequential(original, result, pairs, it, pair, callback, total);
        if (!sync) {
            if (LOG.isTraceEnabled()) {
                LOG.trace("Processing exchangeId: {} is continued being processed asynchronously", pair.getExchange().getExchangeId());
            }
            // the remainder of the multicast will be completed async
            // so we break out now, then the callback will be invoked which then continue routing from where we left here
            return false;
        }

        if (LOG.isTraceEnabled()) {
            LOG.trace("Processing exchangeId: {} is continued being processed synchronously", pair.getExchange().getExchangeId());
        }

        // Decide whether to continue with the multicast or not; similar logic to the Pipeline
        // remember to test for stop on exception and aggregate before copying back results
        boolean continueProcessing = PipelineHelper.continueProcessing(subExchange, "Sequential processing failed for number " + total.get(), LOG);
        if (stopOnException && !continueProcessing) {
            if (subExchange.getException() != null) {
                // wrap in exception to explain where it failed
                CamelExchangeException cause = new CamelExchangeException("Sequential processing failed for number " + total.get(), subExchange, subExchange.getException());
                subExchange.setException(cause);
            }
            // we want to stop on exception, and the exception was handled by the error handler
            // this is similar to what the pipeline does, so we should do the same to not surprise end users
            // so we should set the failed exchange as the result and be done
            result.set(subExchange);
            return true;
        }

        LOG.trace("Sequential processing complete for number {} exchange: {}", total, subExchange);

        if (parallelAggregate) {
            doAggregateInternal(getAggregationStrategy(subExchange), result, subExchange);
        } else {
            doAggregate(getAggregationStrategy(subExchange), result, subExchange);
        }

        total.incrementAndGet();
    }

    LOG.debug("Done sequential processing {} exchanges", total);

    return true;
}
 
Example 14
Source Project: gumtree-spoon-ast-diff   File: file_t.java    License: Apache License 2.0 4 votes vote down vote up
/**
 * Common work which must be done when we are done multicasting.
 * <p/>
 * This logic applies for both running synchronous and asynchronous as there are multiple exist points
 * when using the asynchronous routing engine. And therefore we want the logic in one method instead
 * of being scattered.
 *
 * @param original     the original exchange
 * @param subExchange  the current sub exchange, can be <tt>null</tt> for the synchronous part
 * @param pairs        the pairs with the exchanges to process
 * @param callback     the callback
 * @param doneSync     the <tt>doneSync</tt> parameter to call on callback
 * @param forceExhaust whether or not error handling is exhausted
 */
protected void doDone(Exchange original, Exchange subExchange, final Iterable<ProcessorExchangePair> pairs,
                      AsyncCallback callback, boolean doneSync, boolean forceExhaust) {

    // we are done so close the pairs iterator
    if (pairs != null && pairs instanceof Closeable) {
        IOHelper.close((Closeable) pairs, "pairs", LOG);
    }

    AggregationStrategy strategy = getAggregationStrategy(subExchange);
    // invoke the on completion callback
    if (strategy instanceof CompletionAwareAggregationStrategy) {
        ((CompletionAwareAggregationStrategy) strategy).onCompletion(subExchange);
    }

    // cleanup any per exchange aggregation strategy
    removeAggregationStrategyFromExchange(original);

    // we need to know if there was an exception, and if the stopOnException option was enabled
    // also we would need to know if any error handler has attempted redelivery and exhausted
    boolean stoppedOnException = false;
    boolean exception = false;
    boolean exhaust = forceExhaust || subExchange != null && (subExchange.getException() != null || ExchangeHelper.isRedeliveryExhausted(subExchange));
    if (original.getException() != null || subExchange != null && subExchange.getException() != null) {
        // there was an exception and we stopped
        stoppedOnException = isStopOnException();
        exception = true;
    }

    // must copy results at this point
    if (subExchange != null) {
        if (stoppedOnException) {
            // if we stopped due an exception then only propagte the exception
            original.setException(subExchange.getException());
        } else {
            // copy the current result to original so it will contain this result of this eip
            ExchangeHelper.copyResults(original, subExchange);
        }
    }

    // .. and then if there was an exception we need to configure the redelivery exhaust
    // for example the noErrorHandler will not cause redelivery exhaust so if this error
    // handled has been in use, then the exhaust would be false (if not forced)
    if (exception) {
        // multicast uses error handling on its output processors and they have tried to redeliver
        // so we shall signal back to the other error handlers that we are exhausted and they should not
        // also try to redeliver as we will then do that twice
        original.setProperty(Exchange.REDELIVERY_EXHAUSTED, exhaust);
    }

    callback.done(doneSync);
}
 
Example 15
Source Project: gumtree-spoon-ast-diff   File: file_t.java    License: Apache License 2.0 4 votes vote down vote up
protected boolean doProcessSequential(Exchange original, AtomicExchange result, Iterable<ProcessorExchangePair> pairs, AsyncCallback callback) throws Exception {
    AtomicInteger total = new AtomicInteger();
    Iterator<ProcessorExchangePair> it = pairs.iterator();

    while (it.hasNext()) {
        ProcessorExchangePair pair = it.next();
        Exchange subExchange = pair.getExchange();
        updateNewExchange(subExchange, total.get(), pairs, it);

        boolean sync = doProcessSequential(original, result, pairs, it, pair, callback, total);
        if (!sync) {
            if (LOG.isTraceEnabled()) {
                LOG.trace("Processing exchangeId: {} is continued being processed asynchronously", pair.getExchange().getExchangeId());
            }
            // the remainder of the multicast will be completed async
            // so we break out now, then the callback will be invoked which then continue routing from where we left here
            return false;
        }

        if (LOG.isTraceEnabled()) {
            LOG.trace("Processing exchangeId: {} is continued being processed synchronously", pair.getExchange().getExchangeId());
        }

        // Decide whether to continue with the multicast or not; similar logic to the Pipeline
        // remember to test for stop on exception and aggregate before copying back results
        boolean continueProcessing = PipelineHelper.continueProcessing(subExchange, "Sequential processing failed for number " + total.get(), LOG);
        if (stopOnException && !continueProcessing) {
            if (subExchange.getException() != null) {
                // wrap in exception to explain where it failed
                CamelExchangeException cause = new CamelExchangeException("Sequential processing failed for number " + total.get(), subExchange, subExchange.getException());
                subExchange.setException(cause);
            }
            // we want to stop on exception, and the exception was handled by the error handler
            // this is similar to what the pipeline does, so we should do the same to not surprise end users
            // so we should set the failed exchange as the result and be done
            result.set(subExchange);
            return true;
        }

        LOG.trace("Sequential processing complete for number {} exchange: {}", total, subExchange);

        if (parallelAggregate) {
            doAggregateInternal(getAggregationStrategy(subExchange), result, subExchange);
        } else {
            doAggregate(getAggregationStrategy(subExchange), result, subExchange);
        }

        total.incrementAndGet();
    }

    LOG.debug("Done sequential processing {} exchanges", total);

    return true;
}
 
Example 16
Source Project: gumtree-spoon-ast-diff   File: patched.java    License: Apache License 2.0 4 votes vote down vote up
protected boolean doProcessSequential(Exchange original, AtomicExchange result, Iterable<ProcessorExchangePair> pairs, AsyncCallback callback) throws Exception {
    AtomicInteger total = new AtomicInteger();
    Iterator<ProcessorExchangePair> it = pairs.iterator();

    while (it.hasNext()) {
        ProcessorExchangePair pair = it.next();
        Exchange subExchange = pair.getExchange();
        updateNewExchange(subExchange, total.get(), pairs, it);

        boolean sync = doProcessSequential(original, result, pairs, it, pair, callback, total);
        if (!sync) {
            if (LOG.isTraceEnabled()) {
                LOG.trace("Processing exchangeId: {} is continued being processed asynchronously", pair.getExchange().getExchangeId());
            }
            // the remainder of the multicast will be completed async
            // so we break out now, then the callback will be invoked which then continue routing from where we left here
            return false;
        }

        if (LOG.isTraceEnabled()) {
            LOG.trace("Processing exchangeId: {} is continued being processed synchronously", pair.getExchange().getExchangeId());
        }

        // Decide whether to continue with the multicast or not; similar logic to the Pipeline
        // remember to test for stop on exception and aggregate before copying back results
        boolean continueProcessing = PipelineHelper.continueProcessing(subExchange, "Sequential processing failed for number " + total.get(), LOG);
        if (stopOnException && !continueProcessing) {
            if (subExchange.getException() != null) {
                // wrap in exception to explain where it failed
                CamelExchangeException cause = new CamelExchangeException("Sequential processing failed for number " + total.get(), subExchange, subExchange.getException());
                subExchange.setException(cause);
            }
            // we want to stop on exception, and the exception was handled by the error handler
            // this is similar to what the pipeline does, so we should do the same to not surprise end users
            // so we should set the failed exchange as the result and be done
            result.set(subExchange);
            return true;
        }

        LOG.trace("Sequential processing complete for number {} exchange: {}", total, subExchange);

        if (parallelAggregate) {
            doAggregateInternal(getAggregationStrategy(subExchange), result, subExchange);
        } else {
            doAggregate(getAggregationStrategy(subExchange), result, subExchange);
        }

        total.incrementAndGet();
    }

    LOG.debug("Done sequential processing {} exchanges", total);

    return true;
}
 
Example 17
Source Project: gumtree-spoon-ast-diff   File: patched.java    License: Apache License 2.0 4 votes vote down vote up
/**
 * Common work which must be done when we are done multicasting.
 * <p/>
 * This logic applies for both running synchronous and asynchronous as there are multiple exist points
 * when using the asynchronous routing engine. And therefore we want the logic in one method instead
 * of being scattered.
 *
 * @param original     the original exchange
 * @param subExchange  the current sub exchange, can be <tt>null</tt> for the synchronous part
 * @param pairs        the pairs with the exchanges to process
 * @param callback     the callback
 * @param doneSync     the <tt>doneSync</tt> parameter to call on callback
 * @param forceExhaust whether or not error handling is exhausted
 */
protected void doDone(Exchange original, Exchange subExchange, final Iterable<ProcessorExchangePair> pairs,
                      AsyncCallback callback, boolean doneSync, boolean forceExhaust) {

    // we are done so close the pairs iterator
    if (pairs != null && pairs instanceof Closeable) {
        IOHelper.close((Closeable) pairs, "pairs", LOG);
    }

    AggregationStrategy strategy = getAggregationStrategy(subExchange);
    // invoke the on completion callback
    if (strategy instanceof CompletionAwareAggregationStrategy) {
        ((CompletionAwareAggregationStrategy) strategy).onCompletion(subExchange);
    }

    // cleanup any per exchange aggregation strategy
    removeAggregationStrategyFromExchange(original);

    // we need to know if there was an exception, and if the stopOnException option was enabled
    // also we would need to know if any error handler has attempted redelivery and exhausted
    boolean stoppedOnException = false;
    boolean exception = false;
    boolean exhaust = forceExhaust || subExchange != null && (subExchange.getException() != null || ExchangeHelper.isRedeliveryExhausted(subExchange));
    if (original.getException() != null || subExchange != null && subExchange.getException() != null) {
        // there was an exception and we stopped
        stoppedOnException = isStopOnException();
        exception = true;
    }

    // must copy results at this point
    if (subExchange != null) {
        if (stoppedOnException) {
            // if we stopped due an exception then only propagte the exception
            original.setException(subExchange.getException());
        } else {
            // copy the current result to original so it will contain this result of this eip
            ExchangeHelper.copyResults(original, subExchange);
        }
    }

    // .. and then if there was an exception we need to configure the redelivery exhaust
    // for example the noErrorHandler will not cause redelivery exhaust so if this error
    // handled has been in use, then the exhaust would be false (if not forced)
    if (exception) {
        // multicast uses error handling on its output processors and they have tried to redeliver
        // so we shall signal back to the other error handlers that we are exhausted and they should not
        // also try to redeliver as we will then do that twice
        original.setProperty(Exchange.REDELIVERY_EXHAUSTED, exhaust);
    }

    callback.done(doneSync);
}
 
Example 18
Source Project: gumtree-spoon-ast-diff   File: file_t.java    License: Apache License 2.0 4 votes vote down vote up
/**
 * Common work which must be done when we are done multicasting.
 * <p/>
 * This logic applies for both running synchronous and asynchronous as there are multiple exist points
 * when using the asynchronous routing engine. And therefore we want the logic in one method instead
 * of being scattered.
 *
 * @param original     the original exchange
 * @param subExchange  the current sub exchange, can be <tt>null</tt> for the synchronous part
 * @param pairs        the pairs with the exchanges to process
 * @param callback     the callback
 * @param doneSync     the <tt>doneSync</tt> parameter to call on callback
 * @param forceExhaust whether or not error handling is exhausted
 */
protected void doDone(Exchange original, Exchange subExchange, final Iterable<ProcessorExchangePair> pairs,
                      AsyncCallback callback, boolean doneSync, boolean forceExhaust) {

    // we are done so close the pairs iterator
    if (pairs != null && pairs instanceof Closeable) {
        IOHelper.close((Closeable) pairs, "pairs", LOG);
    }

    AggregationStrategy strategy = getAggregationStrategy(subExchange);
    // invoke the on completion callback
    if (strategy instanceof CompletionAwareAggregationStrategy) {
        ((CompletionAwareAggregationStrategy) strategy).onCompletion(subExchange);
    }

    // cleanup any per exchange aggregation strategy
    removeAggregationStrategyFromExchange(original);

    // we need to know if there was an exception, and if the stopOnException option was enabled
    // also we would need to know if any error handler has attempted redelivery and exhausted
    boolean stoppedOnException = false;
    boolean exception = false;
    boolean exhaust = forceExhaust || subExchange != null && (subExchange.getException() != null || ExchangeHelper.isRedeliveryExhausted(subExchange));
    if (original.getException() != null || subExchange != null && subExchange.getException() != null) {
        // there was an exception and we stopped
        stoppedOnException = isStopOnException();
        exception = true;
    }

    // must copy results at this point
    if (subExchange != null) {
        if (stoppedOnException) {
            // if we stopped due an exception then only propagte the exception
            original.setException(subExchange.getException());
        } else {
            // copy the current result to original so it will contain this result of this eip
            ExchangeHelper.copyResults(original, subExchange);
        }
    }

    // .. and then if there was an exception we need to configure the redelivery exhaust
    // for example the noErrorHandler will not cause redelivery exhaust so if this error
    // handled has been in use, then the exhaust would be false (if not forced)
    if (exception) {
        // multicast uses error handling on its output processors and they have tried to redeliver
        // so we shall signal back to the other error handlers that we are exhausted and they should not
        // also try to redeliver as we will then do that twice
        original.setProperty(Exchange.REDELIVERY_EXHAUSTED, exhaust);
    }

    callback.done(doneSync);
}
 
Example 19
Source Project: gumtree-spoon-ast-diff   File: original.java    License: Apache License 2.0 4 votes vote down vote up
protected boolean doProcessSequential(Exchange original, AtomicExchange result, Iterable<ProcessorExchangePair> pairs, AsyncCallback callback) throws Exception {
    AtomicInteger total = new AtomicInteger();
    Iterator<ProcessorExchangePair> it = pairs.iterator();

    while (it.hasNext()) {
        ProcessorExchangePair pair = it.next();
        Exchange subExchange = pair.getExchange();
        updateNewExchange(subExchange, total.get(), pairs, it);

        boolean sync = doProcessSequential(original, result, pairs, it, pair, callback, total);
        if (!sync) {
            if (LOG.isTraceEnabled()) {
                LOG.trace("Processing exchangeId: {} is continued being processed asynchronously", pair.getExchange().getExchangeId());
            }
            // the remainder of the multicast will be completed async
            // so we break out now, then the callback will be invoked which then continue routing from where we left here
            return false;
        }

        if (LOG.isTraceEnabled()) {
            LOG.trace("Processing exchangeId: {} is continued being processed synchronously", pair.getExchange().getExchangeId());
        }

        // Decide whether to continue with the multicast or not; similar logic to the Pipeline
        // remember to test for stop on exception and aggregate before copying back results
        boolean continueProcessing = PipelineHelper.continueProcessing(subExchange, "Sequential processing failed for number " + total.get(), LOG);
        if (stopOnException && !continueProcessing) {
            if (subExchange.getException() != null) {
                // wrap in exception to explain where it failed
                CamelExchangeException cause = new CamelExchangeException("Sequential processing failed for number " + total.get(), subExchange, subExchange.getException());
                subExchange.setException(cause);
            }
            // we want to stop on exception, and the exception was handled by the error handler
            // this is similar to what the pipeline does, so we should do the same to not surprise end users
            // so we should set the failed exchange as the result and be done
            result.set(subExchange);
            return true;
        }

        LOG.trace("Sequential processing complete for number {} exchange: {}", total, subExchange);

        if (parallelAggregate) {
            doAggregateInternal(getAggregationStrategy(subExchange), result, subExchange);
        } else {
            doAggregate(getAggregationStrategy(subExchange), result, subExchange);
        }

        total.incrementAndGet();
    }

    LOG.debug("Done sequential processing {} exchanges", total);

    return true;
}
 
Example 20
Source Project: gumtree-spoon-ast-diff   File: original.java    License: Apache License 2.0 4 votes vote down vote up
/**
 * Common work which must be done when we are done multicasting.
 * <p/>
 * This logic applies for both running synchronous and asynchronous as there are multiple exist points
 * when using the asynchronous routing engine. And therefore we want the logic in one method instead
 * of being scattered.
 *
 * @param original     the original exchange
 * @param subExchange  the current sub exchange, can be <tt>null</tt> for the synchronous part
 * @param pairs        the pairs with the exchanges to process
 * @param callback     the callback
 * @param doneSync     the <tt>doneSync</tt> parameter to call on callback
 * @param forceExhaust whether or not error handling is exhausted
 */
protected void doDone(Exchange original, Exchange subExchange, final Iterable<ProcessorExchangePair> pairs,
                      AsyncCallback callback, boolean doneSync, boolean forceExhaust) {

    // we are done so close the pairs iterator
    if (pairs != null && pairs instanceof Closeable) {
        IOHelper.close((Closeable) pairs, "pairs", LOG);
    }

    AggregationStrategy strategy = getAggregationStrategy(subExchange);
    // invoke the on completion callback
    if (strategy instanceof CompletionAwareAggregationStrategy) {
        ((CompletionAwareAggregationStrategy) strategy).onCompletion(subExchange);
    }

    // cleanup any per exchange aggregation strategy
    removeAggregationStrategyFromExchange(original);

    // we need to know if there was an exception, and if the stopOnException option was enabled
    // also we would need to know if any error handler has attempted redelivery and exhausted
    boolean stoppedOnException = false;
    boolean exception = false;
    boolean exhaust = forceExhaust || subExchange != null && (subExchange.getException() != null || ExchangeHelper.isRedeliveryExhausted(subExchange));
    if (original.getException() != null || subExchange != null && subExchange.getException() != null) {
        // there was an exception and we stopped
        stoppedOnException = isStopOnException();
        exception = true;
    }

    // must copy results at this point
    if (subExchange != null) {
        if (stoppedOnException) {
            // if we stopped due an exception then only propagte the exception
            original.setException(subExchange.getException());
        } else {
            // copy the current result to original so it will contain this result of this eip
            ExchangeHelper.copyResults(original, subExchange);
        }
    }

    // .. and then if there was an exception we need to configure the redelivery exhaust
    // for example the noErrorHandler will not cause redelivery exhaust so if this error
    // handled has been in use, then the exhaust would be false (if not forced)
    if (exception) {
        // multicast uses error handling on its output processors and they have tried to redeliver
        // so we shall signal back to the other error handlers that we are exhausted and they should not
        // also try to redeliver as we will then do that twice
        original.setProperty(Exchange.REDELIVERY_EXHAUSTED, exhaust);
    }

    callback.done(doneSync);
}