Examples with DataTransformer org.kie.api.runtime.process.DataTransformer used on opensource projects

Example 21 with DataTransformer

use of org.kie.api.runtime.process.DataTransformer in project jbpm by kiegroup.

the class CallActivityHandler method readDataOutputAssociation.

protected void readDataOutputAssociation(org.w3c.dom.Node xmlNode, SubProcessNode subProcessNode, Map<String, String> dataOutputs) {
    // sourceRef
    org.w3c.dom.Node subNode = xmlNode.getFirstChild();
    String from = subNode.getTextContent();
    // targetRef
    subNode = subNode.getNextSibling();
    String to = subNode.getTextContent();
    // transformation
    Transformation transformation = null;
    subNode = subNode.getNextSibling();
    if (subNode != null && "transformation".equals(subNode.getNodeName())) {
        String lang = subNode.getAttributes().getNamedItem("language").getNodeValue();
        String expression = subNode.getTextContent();
        DataTransformer transformer = transformerRegistry.find(lang);
        if (transformer == null) {
            throw new IllegalArgumentException("No transformer registered for language " + lang);
        }
        transformation = new Transformation(lang, expression, from);
        subNode = subNode.getNextSibling();
    }
    subProcessNode.addOutMapping(dataOutputs.get(from), to, transformation);
}

Example 22 with DataTransformer

use of org.kie.api.runtime.process.DataTransformer in project jbpm by kiegroup.

the class CallActivityHandler method readDataInputAssociation.

protected void readDataInputAssociation(org.w3c.dom.Node xmlNode, SubProcessNode subProcessNode, Map<String, String> dataInputs) {
    // sourceRef
    org.w3c.dom.Node subNode = xmlNode.getFirstChild();
    if ("sourceRef".equals(subNode.getNodeName())) {
        String from = subNode.getTextContent();
        // targetRef
        subNode = subNode.getNextSibling();
        String to = subNode.getTextContent();
        // transformation
        Transformation transformation = null;
        subNode = subNode.getNextSibling();
        if (subNode != null && "transformation".equals(subNode.getNodeName())) {
            String lang = subNode.getAttributes().getNamedItem("language").getNodeValue();
            String expression = subNode.getTextContent();
            DataTransformer transformer = transformerRegistry.find(lang);
            if (transformer == null) {
                throw new IllegalArgumentException("No transformer registered for language " + lang);
            }
            transformation = new Transformation(lang, expression);
            subNode = subNode.getNextSibling();
        }
        subProcessNode.addInMapping(dataInputs.get(to), from, transformation);
    } else {
        // targetRef
        String to = subNode.getTextContent();
        // assignment
        subNode = subNode.getNextSibling();
        if (subNode != null) {
            org.w3c.dom.Node subSubNode = subNode.getFirstChild();
            NodeList nl = subSubNode.getChildNodes();
            if (nl.getLength() > 1) {
                // not supported ?
                subProcessNode.addInMapping(dataInputs.get(to), subSubNode.getTextContent());
                return;
            } else if (nl.getLength() == 0) {
                return;
            }
            Object result = null;
            Object from = nl.item(0);
            if (from instanceof Text) {
                result = ((Text) from).getTextContent();
            } else {
                result = nl.item(0);
            }
            subProcessNode.addInMapping(dataInputs.get(to), result.toString());
        }
    }
}

Example 23 with DataTransformer

use of org.kie.api.runtime.process.DataTransformer in project jbpm by kiegroup.

the class StartEventHandler method readDataOutputAssociation.

protected void readDataOutputAssociation(org.w3c.dom.Node xmlNode, StartNode startNode) {
    // sourceRef
    org.w3c.dom.Node subNode = xmlNode.getFirstChild();
    if (!"sourceRef".equals(subNode.getNodeName())) {
        throw new IllegalArgumentException("No sourceRef found in dataOutputAssociation in startEvent");
    }
    String source = subNode.getTextContent();
    if (dataOutputs.get(source) == null) {
        throw new IllegalArgumentException("No dataOutput could be found for the dataOutputAssociation.");
    }
    // targetRef
    subNode = subNode.getNextSibling();
    if (!"targetRef".equals(subNode.getNodeName())) {
        throw new IllegalArgumentException("No targetRef found in dataOutputAssociation in startEvent");
    }
    String target = subNode.getTextContent();
    startNode.setMetaData("TriggerMapping", target);
    // transformation
    Transformation transformation = null;
    subNode = subNode.getNextSibling();
    if (subNode != null && "transformation".equals(subNode.getNodeName())) {
        String lang = subNode.getAttributes().getNamedItem("language").getNodeValue();
        String expression = subNode.getTextContent();
        DataTransformer transformer = transformerRegistry.find(lang);
        if (transformer == null) {
            throw new IllegalArgumentException("No transformer registered for language " + lang);
        }
        transformation = new Transformation(lang, expression, dataOutputs.get(source));
        startNode.setMetaData("Transformation", transformation);
        startNode.setEventTransformer(new EventTransformerImpl(transformation));
        subNode = subNode.getNextSibling();
    }
    if (subNode != null) {
        // no support for assignments
        throw new UnsupportedOperationException(subNode.getNodeName() + " elements in dataOutputAssociations are not yet supported.");
    }
    startNode.addOutMapping(target, dataOutputs.get(source));
}

Example 24 with DataTransformer

use of org.kie.api.runtime.process.DataTransformer in project jbpm by kiegroup.

the class TaskHandler method readDataOutputAssociation.

protected void readDataOutputAssociation(org.w3c.dom.Node xmlNode, WorkItemNode workItemNode, Map<String, String> dataOutputs) {
    // sourceRef
    org.w3c.dom.Node subNode = xmlNode.getFirstChild();
    String source = subNode.getTextContent();
    // targetRef
    subNode = subNode.getNextSibling();
    String target = subNode.getTextContent();
    // transformation
    Transformation transformation = null;
    subNode = subNode.getNextSibling();
    if (subNode != null && "transformation".equals(subNode.getNodeName())) {
        String lang = subNode.getAttributes().getNamedItem("language").getNodeValue();
        String expression = subNode.getTextContent();
        DataTransformer transformer = transformerRegistry.find(lang);
        if (transformer == null) {
            throw new IllegalArgumentException("No transformer registered for language " + lang);
        }
        transformation = new Transformation(lang, expression, source);
        // transformation.setCompiledExpression(transformer.compile(expression));
        subNode = subNode.getNextSibling();
    }
    // assignments
    List<Assignment> assignments = new LinkedList<Assignment>();
    while (subNode != null) {
        org.w3c.dom.Node ssubNode = subNode.getFirstChild();
        String from = ssubNode.getTextContent();
        String to = ssubNode.getNextSibling().getTextContent();
        assignments.add(new Assignment("XPath", from, to));
        subNode = subNode.getNextSibling();
    }
    workItemNode.addOutAssociation(new DataAssociation(dataOutputs.get(source), target, assignments, transformation));
}

Example 25 with DataTransformer

use of org.kie.api.runtime.process.DataTransformer in project jbpm by kiegroup.

the class TransformerJSONandXMLTest method testJAXBTransformer.

@Test
public void testJAXBTransformer() {
    String expectedXml = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?><person><age>34</age><name>john</name></person>";
    DataTransformer transformer = DataTransformerRegistry.get().find("http://www.mvel.org/2.0");
    String expressionR = "java.io.StringReader result = new java.io.StringReader(xml);" + "return javax.xml.bind.JAXBContext.newInstance(classes).createUnmarshaller().unmarshal(result);";
    String expressionW = "java.io.StringWriter result = new java.io.StringWriter();" + "javax.xml.bind.JAXBContext.newInstance(classes).createMarshaller().marshal(employee, result);" + "return result.toString();";
    Object compiled = transformer.compile(expressionW, new HashMap<String, Object>());
    Map<String, Object> parameters = new HashMap<String, Object>();
    Person person = new Person();
    person.setAge(34);
    person.setName("john");
    parameters.put("employee", person);
    parameters.put("classes", Person.class);
    Object result = transformer.transform(compiled, parameters);
    System.out.println(result);
    assertEquals(expectedXml, result);
    Object compiledR = transformer.compile(expressionR, new HashMap<String, Object>());
    parameters.clear();
    parameters.put("classes", Person.class);
    parameters.put("xml", result);
    Object resultr = transformer.transform(compiledR, parameters);
    System.out.println(resultr);
    assertNotNull(resultr);
    assertTrue(resultr instanceof Person);
    assertEquals("john", ((Person) resultr).getName());
    assertEquals(34, ((Person) resultr).getAge().intValue());
}