Examples with DefaultExchange org.apache.camel.impl.DefaultExchange used on opensource projects

Example 21 with DefaultExchange

use of org.apache.camel.impl.DefaultExchange in project camel by apache.

the class ProcessorTransformer method transform.

/**
     * Perform data transformation with specified from/to type using Processor.
     * @param message message to apply transformation
     * @param from 'from' data type
     * @param to 'to' data type
     */
@Override
public void transform(Message message, DataType from, DataType to) throws Exception {
    Exchange exchange = message.getExchange();
    CamelContext context = exchange.getContext();
    if (from.isJavaType()) {
        Object input = message.getBody();
        Class<?> fromClass = context.getClassResolver().resolveClass(from.getName());
        if (!fromClass.isAssignableFrom(input.getClass())) {
            LOG.debug("Converting to '{}'", fromClass.getName());
            input = context.getTypeConverter().mandatoryConvertTo(fromClass, input);
            message.setBody(input);
        }
    }
    LOG.debug("Sending to transform processor '{}'", processor);
    DefaultExchange transformExchange = new DefaultExchange(exchange);
    transformExchange.setIn(message);
    transformExchange.setProperties(exchange.getProperties());
    processor.process(transformExchange);
    Message answer = transformExchange.hasOut() ? transformExchange.getOut() : transformExchange.getIn();
    if (to.isJavaType()) {
        Object answerBody = answer.getBody();
        Class<?> toClass = context.getClassResolver().resolveClass(to.getName());
        if (!toClass.isAssignableFrom(answerBody.getClass())) {
            LOG.debug("Converting to '{}'", toClass.getName());
            answerBody = context.getTypeConverter().mandatoryConvertTo(toClass, answerBody);
            answer.setBody(answerBody);
        }
    }
    message.copyFrom(answer);
}

Example 22 with DefaultExchange

use of org.apache.camel.impl.DefaultExchange in project camel by apache.

the class Enricher method createResourceExchange.

/**
     * Creates a new {@link DefaultExchange} instance from the given
     * <code>exchange</code>. The resulting exchange's pattern is defined by
     * <code>pattern</code>.
     *
     * @param source  exchange to copy from.
     * @param pattern exchange pattern to set.
     * @return created exchange.
     */
protected Exchange createResourceExchange(Exchange source, ExchangePattern pattern) {
    // copy exchange, and do not share the unit of work
    Exchange target = ExchangeHelper.createCorrelatedCopy(source, false);
    target.setPattern(pattern);
    // if we share unit of work, we need to prepare the resource exchange
    if (isShareUnitOfWork()) {
        target.setProperty(Exchange.PARENT_UNIT_OF_WORK, source.getUnitOfWork());
        // and then share the unit of work
        target.setUnitOfWork(source.getUnitOfWork());
    }
    return target;
}

Example 23 with DefaultExchange

use of org.apache.camel.impl.DefaultExchange in project camel by apache.

the class XsltBuilderTest method testXsltTransformerUrl.

public void testXsltTransformerUrl() throws Exception {
    URL styleSheet = getClass().getResource("example.xsl");
    XsltBuilder builder = new XsltBuilder();
    builder.setTransformerURL(styleSheet);
    Exchange exchange = new DefaultExchange(context);
    exchange.getIn().setBody("<hello>world!</hello>");
    builder.process(exchange);
    assertEquals("<?xml version=\"1.0\" encoding=\"UTF-8\"?><goodbye>world!</goodbye>", exchange.getOut().getBody());
}

Example 24 with DefaultExchange

use of org.apache.camel.impl.DefaultExchange in project camel by apache.

the class XsltBuilderTest method testXsltTemplates.

public void testXsltTemplates() throws Exception {
    File file = new File("src/test/resources/org/apache/camel/builder/xml/example.xsl");
    Source source = new SAXSource(new InputSource(new FileInputStream(file)));
    XmlConverter converter = new XmlConverter();
    Templates styleSheet = converter.getTransformerFactory().newTemplates(source);
    XsltBuilder builder = XsltBuilder.xslt(styleSheet);
    Exchange exchange = new DefaultExchange(context);
    exchange.getIn().setBody("<hello>world!</hello>");
    builder.process(exchange);
    assertEquals("<?xml version=\"1.0\" encoding=\"UTF-8\"?><goodbye>world!</goodbye>", exchange.getOut().getBody());
}

Example 25 with DefaultExchange

use of org.apache.camel.impl.DefaultExchange in project camel by apache.

the class XsltBuilderTest method testFailNullBody.

public void testFailNullBody() throws Exception {
    URL styleSheet = getClass().getResource("example.xsl");
    XsltBuilder builder = XsltBuilder.xslt(styleSheet);
    builder.setFailOnNullBody(true);
    Exchange exchange = new DefaultExchange(context);
    exchange.getIn().setBody(null);
    try {
        builder.process(exchange);
        fail("Should thrown an exception");
    } catch (ExpectedBodyTypeException e) {
    // expected
    }
}