Package org.apache.camel

Examples of org.apache.camel.Exchange

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        return new GenericFileProducer<File>(this, operations);
    }

    public Exchange createExchange(GenericFile<File> file) {
        Exchange exchange = createExchange();
        if (file != null) {
            file.bindToExchange(exchange);
        }
        return exchange;
    }
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     * Applies the {@link Binding} processor to the given exchange before passing it on to the delegateProcessor (either a producer or consumer)
     */
    public void pipelineBindingProcessor(Processor bindingProcessor, Exchange exchange, Processor delegateProcessor) throws Exception {
        bindingProcessor.process(exchange);

        Exchange delegateExchange = PipelineHelper.createNextExchange(exchange);
        delegateProcessor.process(delegateExchange);
    }
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     */
    private void doMoveExistingFile(String fileName) throws GenericFileOperationFailedException {
        // need to evaluate using a dummy and simulate the file first, to have access to all the file attributes
        // create a dummy exchange as Exchange is needed for expression evaluation
        // we support only the following 3 tokens.
        Exchange dummy = endpoint.createExchange();
        String parent = FileUtil.onlyPath(fileName);
        String onlyName = FileUtil.stripPath(fileName);
        dummy.getIn().setHeader(Exchange.FILE_NAME, fileName);
        dummy.getIn().setHeader(Exchange.FILE_NAME_ONLY, onlyName);
        dummy.getIn().setHeader(Exchange.FILE_PARENT, parent);

        String to = endpoint.getMoveExisting().evaluate(dummy, String.class);
        // we must normalize it (to avoid having both \ and / in the name which confuses java.io.File)
        to = FileUtil.normalizePath(to);
        if (ObjectHelper.isEmpty(to)) {
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        // sort using build in sorters so we can use expressions
        // use a linked list so we can dequeue the exchanges
        LinkedList<Exchange> exchanges = new LinkedList<Exchange>();
        for (GenericFile<T> file : files) {
            Exchange exchange = endpoint.createExchange(file);
            endpoint.configureExchange(exchange);
            endpoint.configureMessage(file, exchange.getIn());
            exchanges.add(exchange);
        }
        // sort files using exchange comparator if provided
        if (endpoint.getSortBy() != null) {
            Collections.sort(exchanges, endpoint.getSortBy());
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        }

        for (int index = 0; index < total && isBatchAllowed(); index++) {
            // only loop if we are started (allowed to run)
            // use poll to remove the head so it does not consume memory even after we have processed it
            Exchange exchange = (Exchange) exchanges.poll();
            // add current index and total as properties
            exchange.setProperty(Exchange.BATCH_INDEX, index);
            exchange.setProperty(Exchange.BATCH_SIZE, total);
            exchange.setProperty(Exchange.BATCH_COMPLETE, index == total - 1);

            // update pending number of exchanges
            pendingExchanges = total - index - 1;

            // process the current exchange
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     */
    protected void removeExcessiveInProgressFiles(Deque<Exchange> exchanges, int limit) {
        // remove the file from the in progress list in case the batch was limited by max messages per poll
        while (exchanges.size() > limit) {
            // must remove last
            Exchange exchange = exchanges.removeLast();
            GenericFile<?> file = exchange.getProperty(FileComponent.FILE_EXCHANGE_FILE, GenericFile.class);
            String key = file.getAbsoluteFilePath();
            endpoint.getInProgressRepository().remove(key);
        }
    }
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        // if its a file then check we have the file in the idempotent registry already
        if (endpoint.isIdempotent()) {
            // use absolute file path as default key, but evaluate if an expression key was configured
            String key = file.getAbsoluteFilePath();
            if (endpoint.getIdempotentKey() != null) {
                Exchange dummy = endpoint.createExchange(file);
                key = endpoint.getIdempotentKey().evaluate(dummy, String.class);
            }
            if (key != null && endpoint.getIdempotentRepository().contains(key)) {
                log.trace("This consumer is idempotent and the file has been consumed before matching idempotentKey: {}. Will skip this file: {}", key, file);
                return false;
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    }

    protected String evaluateFileExpression() {
        if (fileExpressionResult == null && endpoint.getFileName() != null) {
            // create a dummy exchange as Exchange is needed for expression evaluation
            Exchange dummy = endpoint.createExchange();
            fileExpressionResult = endpoint.getFileName().evaluate(dummy, String.class);
        }
        return fileExpressionResult;
    }
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        if (LOG.isDebugEnabled()) {
            LOG.debug("Channel: {} received body: {}", new Object[]{messageEvent.getChannel(), in});
        }

        // create Exchange and let the consumer process it
        final Exchange exchange = consumer.getEndpoint().createExchange(ctx, messageEvent);

        if (consumer.getConfiguration().isSync()) {
            exchange.setPattern(ExchangePattern.InOut);
        }
        // set the exchange charset property for converting
        if (consumer.getConfiguration().getCharsetName() != null) {
            exchange.setProperty(Exchange.CHARSET_NAME, IOHelper.normalizeCharset(consumer.getConfiguration().getCharsetName()));
        }

        // we want to handle the UoW
        consumer.createUoW(exchange);
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        if (LOG.isDebugEnabled()) {
            LOG.debug("Closing channel as an exception was thrown from Netty", cause);
        }

        Exchange exchange = getExchange(ctx);
        AsyncCallback callback = getAsyncCallback(ctx);

        // the state may not be set
        if (exchange != null && callback != null) {
            // set the cause on the exchange
            exchange.setException(cause);

            // close channel in case an exception was thrown
            NettyHelper.close(exceptionEvent.getChannel());

            // signal callback
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  • org.apache.camel.builder.xml.XsltBuilderTest
  • org.apache.camel.component.atom.AtomEndpoint
  • org.apache.camel.component.bean.BeanHandlerMethodTest
  • org.apache.camel.component.bean.BeanWithHeadersAndBodyInject2Test
  • org.apache.camel.component.beanstalk.ProducerTest
  • org.apache.camel.component.cxf.CxfMessageHeaderTimeoutTest
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