Example usage for javax.xml.stream XMLStreamReader hasNext

List of usage examples for javax.xml.stream XMLStreamReader hasNext

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Introduction

In this page you can find the example usage for javax.xml.stream XMLStreamReader hasNext.

Prototype

public boolean hasNext() throws XMLStreamException;

Source Link

Document

Returns true if there are more parsing events and false if there are no more events.

Usage

From source file:org.elissa.web.server.TransformerServlet.java

private String[] findPackageAndAssetNameForUUID(String uuid, IDiagramProfile profile) {
    List<String> packages = new ArrayList<String>();
    String packagesURL = ExternalInfo.getExternalProtocol(profile) + "://"
            + ExternalInfo.getExternalHost(profile) + "/" + profile.getExternalLoadURLSubdomain().substring(0,
                    profile.getExternalLoadURLSubdomain().indexOf("/"))
            + "/rest/packages/";
    try {/*  w  w w  .  j  a  v  a2  s .  co  m*/
        XMLInputFactory factory = XMLInputFactory.newInstance();
        XMLStreamReader reader = factory
                .createXMLStreamReader(getInputStreamForURL(packagesURL, "GET", profile));
        while (reader.hasNext()) {
            if (reader.next() == XMLStreamReader.START_ELEMENT) {
                if ("title".equals(reader.getLocalName())) {
                    packages.add(reader.getElementText());
                }
            }
        }
    } catch (Exception e) {
        // we dont want to barf..just log that error happened
        _logger.error(e.getMessage());
    }

    boolean gotPackage = false;
    String[] pkgassetnames = new String[2];
    for (String nextPackage : packages) {
        String packageAssetURL = ExternalInfo.getExternalProtocol(profile) + "://"
                + ExternalInfo.getExternalHost(profile) + "/"
                + profile.getExternalLoadURLSubdomain().substring(0,
                        profile.getExternalLoadURLSubdomain().indexOf("/"))
                + "/rest/packages/" + nextPackage + "/assets/";
        try {
            XMLInputFactory factory = XMLInputFactory.newInstance();
            XMLStreamReader reader = factory
                    .createXMLStreamReader(getInputStreamForURL(packageAssetURL, "GET", profile));
            String title = "";
            while (reader.hasNext()) {
                int next = reader.next();
                if (next == XMLStreamReader.START_ELEMENT) {
                    if ("title".equals(reader.getLocalName())) {
                        title = reader.getElementText();
                    }
                    if ("uuid".equals(reader.getLocalName())) {
                        String eleText = reader.getElementText();
                        if (uuid.equals(eleText)) {
                            pkgassetnames[0] = nextPackage;
                            pkgassetnames[1] = title;
                            gotPackage = true;
                        }
                    }
                }
            }
        } catch (Exception e) {
            // we dont want to barf..just log that error happened
            _logger.error(e.getMessage());
        }
        if (gotPackage) {
            // noo need to loop through rest of packages
            break;
        }
    }
    return pkgassetnames;
}

From source file:org.erdc.cobie.shared.COBieUtility.java

static public Map<String, String> elementMapFromXMLObject(XmlObject xml) {
    Map<String, String> elementMap = new HashMap<String, String>();
    XMLStreamReader rdr = xml.newXMLStreamReader();
    String keyName = "";
    String keyVal = "";
    boolean lastWasStartElement = false;
    int attCount = 0;
    try {//from  w w  w . j av  a  2s  . c  om

        while (rdr.hasNext()) {
            try {
                attCount = rdr.getAttributeCount();
            } catch (Exception ex) {
                attCount = 0;
            }
            if (attCount > 0) {
                for (int i = 0; i < attCount; i++) {
                    keyName = rdr.getAttributeLocalName(i);
                    keyVal = rdr.getAttributeValue(i);
                    if (!elementMap.containsKey(keyName)) {
                        elementMap.put(keyName, escape(keyVal));
                    }
                    lastWasStartElement = false;
                }
            }
            if (rdr.isStartElement()) {
                keyName = rdr.getLocalName();
                lastWasStartElement = true;

            } else if (rdr.isCharacters() && lastWasStartElement) {
                if (isElementADateTime(xml, keyName)) {
                    keyVal = COBieUtility.stringFromXmlDateTime(xml, keyName);

                } else {
                    keyVal = rdr.getText();
                }
                if (!elementMap.containsKey(keyName)) {
                    elementMap.put(keyName, escape(keyVal));
                }
                lastWasStartElement = false;
            } else {
                lastWasStartElement = false;
            }

            rdr.next();
        }
    } catch (XMLStreamException e) {
        LOGGER.error("", e);
    }
    return elementMap;
}

From source file:org.flowable.bpmn.converter.BaseBpmnXMLConverter.java

@SuppressWarnings("unchecked")
protected ExtensionElement parseExtensionElement(XMLStreamReader xtr) throws Exception {
    ExtensionElement extensionElement = new ExtensionElement();
    extensionElement.setName(xtr.getLocalName());
    if (StringUtils.isNotEmpty(xtr.getNamespaceURI())) {
        extensionElement.setNamespace(xtr.getNamespaceURI());
    }//from   w w w  . j av  a 2s .co m
    if (StringUtils.isNotEmpty(xtr.getPrefix())) {
        extensionElement.setNamespacePrefix(xtr.getPrefix());
    }

    BpmnXMLUtil.addCustomAttributes(xtr, extensionElement, defaultElementAttributes);

    boolean readyWithExtensionElement = false;
    while (readyWithExtensionElement == false && xtr.hasNext()) {
        xtr.next();
        if (xtr.isCharacters() || XMLStreamReader.CDATA == xtr.getEventType()) {
            if (StringUtils.isNotEmpty(xtr.getText().trim())) {
                extensionElement.setElementText(xtr.getText().trim());
            }
        } else if (xtr.isStartElement()) {
            ExtensionElement childExtensionElement = parseExtensionElement(xtr);
            extensionElement.addChildElement(childExtensionElement);
        } else if (xtr.isEndElement() && extensionElement.getName().equalsIgnoreCase(xtr.getLocalName())) {
            readyWithExtensionElement = true;
        }
    }
    return extensionElement;
}

From source file:org.flowable.bpmn.converter.BpmnXMLConverter.java

public BpmnModel convertToBpmnModel(XMLStreamReader xtr) {
    BpmnModel model = new BpmnModel();
    model.setStartEventFormTypes(startEventFormTypes);
    model.setUserTaskFormTypes(userTaskFormTypes);
    try {//from www. j  a  v  a  2  s . com
        Process activeProcess = null;
        List<SubProcess> activeSubProcessList = new ArrayList<SubProcess>();
        while (xtr.hasNext()) {
            try {
                xtr.next();
            } catch (Exception e) {
                LOGGER.debug("Error reading XML document", e);
                throw new XMLException("Error reading XML", e);
            }

            if (xtr.isEndElement() && (ELEMENT_SUBPROCESS.equals(xtr.getLocalName())
                    || ELEMENT_TRANSACTION.equals(xtr.getLocalName())
                    || ELEMENT_ADHOC_SUBPROCESS.equals(xtr.getLocalName()))) {

                activeSubProcessList.remove(activeSubProcessList.size() - 1);
            }

            if (xtr.isStartElement() == false) {
                continue;
            }

            if (ELEMENT_DEFINITIONS.equals(xtr.getLocalName())) {
                definitionsParser.parse(xtr, model);

            } else if (ELEMENT_RESOURCE.equals(xtr.getLocalName())) {
                resourceParser.parse(xtr, model);

            } else if (ELEMENT_SIGNAL.equals(xtr.getLocalName())) {
                signalParser.parse(xtr, model);

            } else if (ELEMENT_MESSAGE.equals(xtr.getLocalName())) {
                messageParser.parse(xtr, model);

            } else if (ELEMENT_ERROR.equals(xtr.getLocalName())) {

                if (StringUtils.isNotEmpty(xtr.getAttributeValue(null, ATTRIBUTE_ID))) {
                    model.addError(xtr.getAttributeValue(null, ATTRIBUTE_ID),
                            xtr.getAttributeValue(null, ATTRIBUTE_ERROR_CODE));
                }

            } else if (ELEMENT_IMPORT.equals(xtr.getLocalName())) {
                importParser.parse(xtr, model);

            } else if (ELEMENT_ITEM_DEFINITION.equals(xtr.getLocalName())) {
                itemDefinitionParser.parse(xtr, model);

            } else if (ELEMENT_DATA_STORE.equals(xtr.getLocalName())) {
                dataStoreParser.parse(xtr, model);

            } else if (ELEMENT_INTERFACE.equals(xtr.getLocalName())) {
                interfaceParser.parse(xtr, model);

            } else if (ELEMENT_IOSPECIFICATION.equals(xtr.getLocalName())) {
                ioSpecificationParser.parseChildElement(xtr, activeProcess, model);

            } else if (ELEMENT_PARTICIPANT.equals(xtr.getLocalName())) {
                participantParser.parse(xtr, model);

            } else if (ELEMENT_MESSAGE_FLOW.equals(xtr.getLocalName())) {
                messageFlowParser.parse(xtr, model);

            } else if (ELEMENT_PROCESS.equals(xtr.getLocalName())) {

                Process process = processParser.parse(xtr, model);
                if (process != null) {
                    activeProcess = process;
                }

            } else if (ELEMENT_POTENTIAL_STARTER.equals(xtr.getLocalName())) {
                potentialStarterParser.parse(xtr, activeProcess);

            } else if (ELEMENT_LANE.equals(xtr.getLocalName())) {
                laneParser.parse(xtr, activeProcess, model);

            } else if (ELEMENT_DOCUMENTATION.equals(xtr.getLocalName())) {

                BaseElement parentElement = null;
                if (!activeSubProcessList.isEmpty()) {
                    parentElement = activeSubProcessList.get(activeSubProcessList.size() - 1);
                } else if (activeProcess != null) {
                    parentElement = activeProcess;
                }
                documentationParser.parseChildElement(xtr, parentElement, model);

            } else if (activeProcess == null && ELEMENT_TEXT_ANNOTATION.equals(xtr.getLocalName())) {
                String elementId = xtr.getAttributeValue(null, ATTRIBUTE_ID);
                TextAnnotation textAnnotation = (TextAnnotation) new TextAnnotationXMLConverter()
                        .convertXMLToElement(xtr, model);
                textAnnotation.setId(elementId);
                model.getGlobalArtifacts().add(textAnnotation);

            } else if (activeProcess == null && ELEMENT_ASSOCIATION.equals(xtr.getLocalName())) {
                String elementId = xtr.getAttributeValue(null, ATTRIBUTE_ID);
                Association association = (Association) new AssociationXMLConverter().convertXMLToElement(xtr,
                        model);
                association.setId(elementId);
                model.getGlobalArtifacts().add(association);

            } else if (ELEMENT_EXTENSIONS.equals(xtr.getLocalName())) {
                extensionElementsParser.parse(xtr, activeSubProcessList, activeProcess, model);

            } else if (ELEMENT_SUBPROCESS.equals(xtr.getLocalName())
                    || ELEMENT_TRANSACTION.equals(xtr.getLocalName())
                    || ELEMENT_ADHOC_SUBPROCESS.equals(xtr.getLocalName())) {
                subProcessParser.parse(xtr, activeSubProcessList, activeProcess);

            } else if (ELEMENT_COMPLETION_CONDITION.equals(xtr.getLocalName())) {
                if (!activeSubProcessList.isEmpty()) {
                    SubProcess subProcess = activeSubProcessList.get(activeSubProcessList.size() - 1);
                    if (subProcess instanceof AdhocSubProcess) {
                        AdhocSubProcess adhocSubProcess = (AdhocSubProcess) subProcess;
                        adhocSubProcess.setCompletionCondition(xtr.getElementText());
                    }
                }

            } else if (ELEMENT_DI_SHAPE.equals(xtr.getLocalName())) {
                bpmnShapeParser.parse(xtr, model);

            } else if (ELEMENT_DI_EDGE.equals(xtr.getLocalName())) {
                bpmnEdgeParser.parse(xtr, model);

            } else {

                if (!activeSubProcessList.isEmpty()
                        && ELEMENT_MULTIINSTANCE.equalsIgnoreCase(xtr.getLocalName())) {

                    multiInstanceParser.parseChildElement(xtr,
                            activeSubProcessList.get(activeSubProcessList.size() - 1), model);

                } else if (convertersToBpmnMap.containsKey(xtr.getLocalName())) {
                    if (activeProcess != null) {
                        BaseBpmnXMLConverter converter = convertersToBpmnMap.get(xtr.getLocalName());
                        converter.convertToBpmnModel(xtr, model, activeProcess, activeSubProcessList);
                    }
                }
            }
        }

        for (Process process : model.getProcesses()) {
            for (Pool pool : model.getPools()) {
                if (process.getId().equals(pool.getProcessRef())) {
                    pool.setExecutable(process.isExecutable());
                }
            }
            processFlowElements(process.getFlowElements(), process);
        }

    } catch (XMLException e) {
        throw e;

    } catch (Exception e) {
        LOGGER.error("Error processing BPMN document", e);
        throw new XMLException("Error processing BPMN document", e);
    }
    return model;
}

From source file:org.flowable.bpmn.converter.child.DataAssociationParser.java

public static void parseDataAssociation(DataAssociation dataAssociation, String elementName,
        XMLStreamReader xtr) {
    boolean readyWithDataAssociation = false;
    Assignment assignment = null;/*from   ww  w . j ava 2s  .  c o  m*/
    try {

        dataAssociation.setId(xtr.getAttributeValue(null, "id"));

        while (readyWithDataAssociation == false && xtr.hasNext()) {
            xtr.next();
            if (xtr.isStartElement() && ELEMENT_SOURCE_REF.equals(xtr.getLocalName())) {
                String sourceRef = xtr.getElementText();
                if (StringUtils.isNotEmpty(sourceRef)) {
                    dataAssociation.setSourceRef(sourceRef.trim());
                }

            } else if (xtr.isStartElement() && ELEMENT_TARGET_REF.equals(xtr.getLocalName())) {
                String targetRef = xtr.getElementText();
                if (StringUtils.isNotEmpty(targetRef)) {
                    dataAssociation.setTargetRef(targetRef.trim());
                }

            } else if (xtr.isStartElement() && ELEMENT_TRANSFORMATION.equals(xtr.getLocalName())) {
                String transformation = xtr.getElementText();
                if (StringUtils.isNotEmpty(transformation)) {
                    dataAssociation.setTransformation(transformation.trim());
                }

            } else if (xtr.isStartElement() && ELEMENT_ASSIGNMENT.equals(xtr.getLocalName())) {
                assignment = new Assignment();
                BpmnXMLUtil.addXMLLocation(assignment, xtr);

            } else if (xtr.isStartElement() && ELEMENT_FROM.equals(xtr.getLocalName())) {
                String from = xtr.getElementText();
                if (assignment != null && StringUtils.isNotEmpty(from)) {
                    assignment.setFrom(from.trim());
                }

            } else if (xtr.isStartElement() && ELEMENT_TO.equals(xtr.getLocalName())) {
                String to = xtr.getElementText();
                if (assignment != null && StringUtils.isNotEmpty(to)) {
                    assignment.setTo(to.trim());
                }

            } else if (xtr.isEndElement() && ELEMENT_ASSIGNMENT.equals(xtr.getLocalName())) {
                if (StringUtils.isNotEmpty(assignment.getFrom())
                        && StringUtils.isNotEmpty(assignment.getTo())) {
                    dataAssociation.getAssignments().add(assignment);
                }

            } else if (xtr.isEndElement() && elementName.equals(xtr.getLocalName())) {
                readyWithDataAssociation = true;
            }
        }
    } catch (Exception e) {
        LOGGER.warn("Error parsing data association child elements", e);
    }
}

From source file:org.flowable.bpmn.converter.child.FieldExtensionParser.java

public void parseChildElement(XMLStreamReader xtr, BaseElement parentElement, BpmnModel model)
        throws Exception {

    if (!accepts(parentElement))
        return;/*from  ww  w . jav a 2s .  c om*/

    FieldExtension extension = new FieldExtension();
    BpmnXMLUtil.addXMLLocation(extension, xtr);
    extension.setFieldName(xtr.getAttributeValue(null, ATTRIBUTE_FIELD_NAME));

    if (StringUtils.isNotEmpty(xtr.getAttributeValue(null, ATTRIBUTE_FIELD_STRING))) {
        extension.setStringValue(xtr.getAttributeValue(null, ATTRIBUTE_FIELD_STRING));

    } else if (StringUtils.isNotEmpty(xtr.getAttributeValue(null, ATTRIBUTE_FIELD_EXPRESSION))) {
        extension.setExpression(xtr.getAttributeValue(null, ATTRIBUTE_FIELD_EXPRESSION));

    } else {
        boolean readyWithFieldExtension = false;
        try {
            while (readyWithFieldExtension == false && xtr.hasNext()) {
                xtr.next();
                if (xtr.isStartElement() && ELEMENT_FIELD_STRING.equalsIgnoreCase(xtr.getLocalName())) {
                    extension.setStringValue(xtr.getElementText().trim());

                } else if (xtr.isStartElement()
                        && ATTRIBUTE_FIELD_EXPRESSION.equalsIgnoreCase(xtr.getLocalName())) {
                    extension.setExpression(xtr.getElementText().trim());

                } else if (xtr.isEndElement() && getElementName().equalsIgnoreCase(xtr.getLocalName())) {
                    readyWithFieldExtension = true;
                }
            }
        } catch (Exception e) {
            LOGGER.warn("Error parsing field extension child elements", e);
        }
    }

    if (parentElement instanceof FlowableListener) {
        ((FlowableListener) parentElement).getFieldExtensions().add(extension);
    } else if (parentElement instanceof ServiceTask) {
        ((ServiceTask) parentElement).getFieldExtensions().add(extension);
    } else {
        ((SendTask) parentElement).getFieldExtensions().add(extension);
    }
}

From source file:org.flowable.bpmn.converter.child.FlowableCollectionParser.java

@Override
public void parseChildElement(XMLStreamReader xtr, BaseElement parentElement, BpmnModel model)
        throws Exception {
    if (!(parentElement instanceof MultiInstanceLoopCharacteristics)) {
        return;/*from   w ww  . ja  v  a  2 s.  c o  m*/
    }

    MultiInstanceLoopCharacteristics multiInstanceLoopCharacteristics = (MultiInstanceLoopCharacteristics) parentElement;

    CollectionHandler collectionHandler = null;

    if (StringUtils.isNotEmpty(xtr.getAttributeValue(null, ATTRIBUTE_MULTIINSTANCE_COLLECTION_CLASS))) {
        collectionHandler = new CollectionHandler();
        collectionHandler
                .setImplementation(xtr.getAttributeValue(null, ATTRIBUTE_MULTIINSTANCE_COLLECTION_CLASS));
        collectionHandler.setImplementationType(ImplementationType.IMPLEMENTATION_TYPE_CLASS);

    } else if (StringUtils
            .isNotEmpty(xtr.getAttributeValue(null, ATTRIBUTE_MULTIINSTANCE_COLLECTION_DELEGATEEXPRESSION))) {
        collectionHandler = new CollectionHandler();
        collectionHandler.setImplementation(
                xtr.getAttributeValue(null, ATTRIBUTE_MULTIINSTANCE_COLLECTION_DELEGATEEXPRESSION));
        collectionHandler.setImplementationType(ImplementationType.IMPLEMENTATION_TYPE_DELEGATEEXPRESSION);
    }

    if (collectionHandler != null) {
        BpmnXMLUtil.addXMLLocation(collectionHandler, xtr);
        multiInstanceLoopCharacteristics.setHandler(collectionHandler);
    }

    boolean readyWithCollection = false;
    try {
        while (!readyWithCollection && xtr.hasNext()) {
            xtr.next();
            if (xtr.isStartElement()
                    && ELEMENT_MULTIINSTANCE_COLLECTION_STRING.equalsIgnoreCase(xtr.getLocalName())) {
                // it is a string value
                multiInstanceLoopCharacteristics.setCollectionString(xtr.getElementText());

            } else if (xtr.isStartElement()
                    && ELEMENT_MULTIINSTANCE_COLLECTION_EXPRESSION.equalsIgnoreCase(xtr.getLocalName())) {
                // it is an expression
                multiInstanceLoopCharacteristics.setInputDataItem(xtr.getElementText());

            } else if (xtr.isEndElement() && getElementName().equalsIgnoreCase(xtr.getLocalName())) {
                readyWithCollection = true;
            }
        }
    } catch (Exception e) {
        LOGGER.warn("Error parsing collection child elements", e);
    }
}

From source file:org.flowable.bpmn.converter.child.FormPropertyParser.java

public void parseChildElement(XMLStreamReader xtr, BaseElement parentElement, BpmnModel model)
        throws Exception {

    if (!accepts(parentElement))
        return;/*from  w ww .j  ava2s .c om*/

    FormProperty property = new FormProperty();
    BpmnXMLUtil.addXMLLocation(property, xtr);
    property.setId(xtr.getAttributeValue(null, ATTRIBUTE_FORM_ID));
    property.setName(xtr.getAttributeValue(null, ATTRIBUTE_FORM_NAME));
    property.setType(xtr.getAttributeValue(null, ATTRIBUTE_FORM_TYPE));
    property.setVariable(xtr.getAttributeValue(null, ATTRIBUTE_FORM_VARIABLE));
    property.setExpression(xtr.getAttributeValue(null, ATTRIBUTE_FORM_EXPRESSION));
    property.setDefaultExpression(xtr.getAttributeValue(null, ATTRIBUTE_FORM_DEFAULT));
    property.setDatePattern(xtr.getAttributeValue(null, ATTRIBUTE_FORM_DATEPATTERN));
    if (StringUtils.isNotEmpty(xtr.getAttributeValue(null, ATTRIBUTE_FORM_REQUIRED))) {
        property.setRequired(Boolean.valueOf(xtr.getAttributeValue(null, ATTRIBUTE_FORM_REQUIRED)));
    }
    if (StringUtils.isNotEmpty(xtr.getAttributeValue(null, ATTRIBUTE_FORM_READABLE))) {
        property.setReadable(Boolean.valueOf(xtr.getAttributeValue(null, ATTRIBUTE_FORM_READABLE)));
    }
    if (StringUtils.isNotEmpty(xtr.getAttributeValue(null, ATTRIBUTE_FORM_WRITABLE))) {
        property.setWriteable(Boolean.valueOf(xtr.getAttributeValue(null, ATTRIBUTE_FORM_WRITABLE)));
    }

    boolean readyWithFormProperty = false;
    try {
        while (readyWithFormProperty == false && xtr.hasNext()) {
            xtr.next();
            if (xtr.isStartElement() && ELEMENT_VALUE.equalsIgnoreCase(xtr.getLocalName())) {
                FormValue value = new FormValue();
                BpmnXMLUtil.addXMLLocation(value, xtr);
                value.setId(xtr.getAttributeValue(null, ATTRIBUTE_ID));
                value.setName(xtr.getAttributeValue(null, ATTRIBUTE_NAME));
                property.getFormValues().add(value);

            } else if (xtr.isEndElement() && getElementName().equalsIgnoreCase(xtr.getLocalName())) {
                readyWithFormProperty = true;
            }
        }
    } catch (Exception e) {
        LOGGER.warn("Error parsing form properties child elements", e);
    }

    if (parentElement instanceof UserTask) {
        ((UserTask) parentElement).getFormProperties().add(property);
    } else {
        ((StartEvent) parentElement).getFormProperties().add(property);
    }
}

From source file:org.flowable.bpmn.converter.child.IOSpecificationParser.java

public void parseChildElement(XMLStreamReader xtr, BaseElement parentElement, BpmnModel model)
        throws Exception {

    if (parentElement instanceof Activity == false && parentElement instanceof Process == false)
        return;//from  w w  w . ja v  a  2  s. c  om

    IOSpecification ioSpecification = new IOSpecification();
    BpmnXMLUtil.addXMLLocation(ioSpecification, xtr);
    boolean readyWithIOSpecification = false;
    try {
        while (readyWithIOSpecification == false && xtr.hasNext()) {
            xtr.next();
            if (xtr.isStartElement() && ELEMENT_DATA_INPUT.equalsIgnoreCase(xtr.getLocalName())) {
                DataSpec dataSpec = new DataSpec();
                BpmnXMLUtil.addXMLLocation(dataSpec, xtr);
                dataSpec.setId(xtr.getAttributeValue(null, ATTRIBUTE_ID));
                dataSpec.setName(xtr.getAttributeValue(null, ATTRIBUTE_NAME));
                dataSpec.setItemSubjectRef(
                        parseItemSubjectRef(xtr.getAttributeValue(null, ATTRIBUTE_ITEM_SUBJECT_REF), model));
                ioSpecification.getDataInputs().add(dataSpec);

            } else if (xtr.isStartElement() && ELEMENT_DATA_OUTPUT.equalsIgnoreCase(xtr.getLocalName())) {
                DataSpec dataSpec = new DataSpec();
                BpmnXMLUtil.addXMLLocation(dataSpec, xtr);
                dataSpec.setId(xtr.getAttributeValue(null, ATTRIBUTE_ID));
                dataSpec.setName(xtr.getAttributeValue(null, ATTRIBUTE_NAME));
                dataSpec.setItemSubjectRef(
                        parseItemSubjectRef(xtr.getAttributeValue(null, ATTRIBUTE_ITEM_SUBJECT_REF), model));
                ioSpecification.getDataOutputs().add(dataSpec);

            } else if (xtr.isStartElement() && ELEMENT_DATA_INPUT_REFS.equalsIgnoreCase(xtr.getLocalName())) {
                String dataInputRefs = xtr.getElementText();
                if (StringUtils.isNotEmpty(dataInputRefs)) {
                    ioSpecification.getDataInputRefs().add(dataInputRefs.trim());
                }

            } else if (xtr.isStartElement() && ELEMENT_DATA_OUTPUT_REFS.equalsIgnoreCase(xtr.getLocalName())) {
                String dataOutputRefs = xtr.getElementText();
                if (StringUtils.isNotEmpty(dataOutputRefs)) {
                    ioSpecification.getDataOutputRefs().add(dataOutputRefs.trim());
                }

            } else if (xtr.isEndElement() && getElementName().equalsIgnoreCase(xtr.getLocalName())) {
                readyWithIOSpecification = true;
            }
        }
    } catch (Exception e) {
        LOGGER.warn("Error parsing ioSpecification child elements", e);
    }

    if (parentElement instanceof Process) {
        ((Process) parentElement).setIoSpecification(ioSpecification);
    } else {
        ((Activity) parentElement).setIoSpecification(ioSpecification);
    }
}

From source file:org.flowable.cmmn.converter.CmmnXmlConverter.java

public CmmnModel convertToCmmnModel(XMLStreamReader xtr) {

    ConversionHelper conversionHelper = new ConversionHelper();
    conversionHelper.setCmmnModel(new CmmnModel());

    try {/*from  w  w  w . j a  v  a  2 s .  c  om*/
        String currentXmlElement = null;
        while (xtr.hasNext()) {
            try {
                xtr.next();
            } catch (Exception e) {
                LOGGER.debug("Error reading CMMN XML document", e);
                throw new CmmnXMLException("Error reading XML", e);
            }

            if (xtr.isStartElement()) {
                currentXmlElement = xtr.getLocalName();
                if (elementConverters.containsKey(currentXmlElement)) {
                    elementConverters.get(currentXmlElement).convertToCmmnModel(xtr, conversionHelper);
                }

            } else if (xtr.isEndElement()) {
                currentXmlElement = null;
                if (elementConverters.containsKey(xtr.getLocalName())) {
                    elementConverters.get(xtr.getLocalName()).elementEnd(xtr, conversionHelper);
                }

            } else if (xtr.isCharacters() && currentXmlElement != null) {
                if (textConverters.containsKey(currentXmlElement)) {
                    textConverters.get(currentXmlElement).convertToCmmnModel(xtr, conversionHelper);
                }

            }
        }

    } catch (CmmnXMLException e) {
        throw e;

    } catch (Exception e) {
        LOGGER.error("Error processing CMMN XML document", e);
        throw new CmmnXMLException("Error processing CMMN XML document", e);
    }

    // Post process all elements: add instances where a reference is used
    processCmmnElements(conversionHelper);
    return conversionHelper.getCmmnModel();
}