Examples with XMLInputFactory javax.xml.stream.XMLInputFactory used on opensource projects

Example 11 with XMLInputFactory

use of javax.xml.stream.XMLInputFactory in project databus by linkedin.

the class StaxBuilderTest method processXml.

public void processXml() throws Exception {
    try {
        //wrap the stream with fake root
        String xmlStartTag = "<?xml version=\"" + DbusConstants.XML_VERSION + "\" encoding=\"" + DbusConstants.ISO_8859_1 + "\"?><root>";
        String xmlEndTag = "</root>";
        List xmlTagsList = Arrays.asList(new InputStream[] { new ByteArrayInputStream(xmlStartTag.getBytes(DbusConstants.ISO_8859_1)), _fileInputStream, new ByteArrayInputStream(xmlEndTag.getBytes(DbusConstants.ISO_8859_1)) });
        Enumeration<InputStream> streams = Collections.enumeration(xmlTagsList);
        SequenceInputStream seqStream = new SequenceInputStream(streams);
        XMLInputFactory factory = XMLInputFactory.newInstance();
        factory.setProperty(XMLInputFactory.IS_COALESCING, Boolean.TRUE);
        XMLStreamReader xmlStreamReader = factory.createXMLStreamReader(seqStream);
        //TODO replace _tableToNamespace this by physical sources config
        XmlParser parser = new XmlParser(xmlStreamReader, _schemaRegistry, _tableToNamespace, _tableToSourceId, _transactionSuccessCallBack, true, _staticReplicationConfig, seqStream);
        parser.start();
    } catch (XMLStreamException e) {
        LOG.error("Unable to parse the given xml stream", e);
    }
}

Example 12 with XMLInputFactory

use of javax.xml.stream.XMLInputFactory in project databus by linkedin.

the class XmlFormatTrailParser method createXmlInputFactory.

private XMLInputFactory createXmlInputFactory(boolean validating) throws FactoryConfigurationError {
    XMLInputFactory result = null;
    Throwable createError = null;
    try {
        @SuppressWarnings("unchecked") Class<XMLInputFactory> woodstoxFactory = (Class<XMLInputFactory>) Class.forName("com.ctc.wstx.stax.WstxInputFactory");
        result = woodstoxFactory.newInstance();
        if (validating) {
            _log.info("found woodstox library: DTD validation will be enabled");
            result.setProperty(XMLInputFactory.IS_VALIDATING, validating);
        }
    } catch (ClassNotFoundException e) {
        createError = e;
    } catch (InstantiationException e) {
        createError = e;
    } catch (IllegalAccessException e) {
        createError = e;
    } catch (RuntimeException e) {
        createError = e;
    }
    if (null != createError) {
        _log.info("unable to find woodstox library, defaulting to Java: " + createError);
        if (validating) {
            _log.warn("default implementation does not support DTD validation");
        }
        result = XMLInputFactory.newInstance();
    }
    return result;
}

Example 13 with XMLInputFactory

use of javax.xml.stream.XMLInputFactory in project modrun by nanosai.

the class ModuleDependencyReader method readDependencies.

public static List<Dependency> readDependencies(Reader pomReader) {
    List<Dependency> dependencies = new ArrayList<>();
    XMLInputFactory factory = XMLInputFactory.newInstance();
    try {
        XMLStreamReader streamReader = factory.createXMLStreamReader(pomReader);
        while (streamReader.hasNext()) {
            streamReader.next();
            if (streamReader.getEventType() == XMLStreamReader.START_ELEMENT) {
                String elementName = streamReader.getLocalName();
                if (elementName.equals("dependency")) {
                    Dependency dependency = parseDependency(streamReader);
                    dependencies.add(dependency);
                }
            }
        }
    } catch (XMLStreamException e) {
        e.printStackTrace();
    }
    return dependencies;
}

Example 14 with XMLInputFactory

use of javax.xml.stream.XMLInputFactory in project openhab1-addons by openhab.

the class DenonConnector method getDocument.

private <T> T getDocument(String uri, Class<T> response) {
    try {
        String result = doHttpRequest("GET", uri, null);
        logger.trace("result of getDocument for uri '{}':\r\n{}", uri, result);
        if (StringUtils.isNotBlank(result)) {
            JAXBContext jc = JAXBContext.newInstance(response);
            XMLInputFactory xif = XMLInputFactory.newInstance();
            XMLStreamReader xsr = xif.createXMLStreamReader(IOUtils.toInputStream(result));
            xsr = new PropertyRenamerDelegate(xsr);
            @SuppressWarnings("unchecked") T obj = (T) jc.createUnmarshaller().unmarshal(xsr);
            return obj;
        }
    } catch (UnmarshalException e) {
        logger.debug("Failed to unmarshal xml document: {}", e.getMessage());
    } catch (JAXBException e) {
        logger.debug("Unexpected error occurred during unmarshalling of document: {}", e.getMessage());
    } catch (XMLStreamException e) {
        logger.debug("Communication error: {}", e.getMessage());
    }
    return null;
}

Example 15 with XMLInputFactory

use of javax.xml.stream.XMLInputFactory in project orientdb by orientechnologies.

the class OGraphMLReader method inputGraph.

/**
   * Input the GraphML stream data into the graph. More control over how data is streamed is provided by this method.
   *
   * @param inputGraph
   *          the graph to populate with the GraphML data
   * @param graphMLInputStream
   *          an InputStream of GraphML data
   * @param bufferSize
   *          the amount of elements to hold in memory before committing a transactions (only valid for TransactionalGraphs)
   * @param vertexIdKey
   *          if the id of a vertex is a <data/> property, fetch it from the data property.
   * @param edgeIdKey
   *          if the id of an edge is a <data/> property, fetch it from the data property.
   * @param edgeLabelKey
   *          if the label of an edge is a <data/> property, fetch it from the data property.
   * @throws IOException
   *           thrown when the GraphML data is not correctly formatted
   */
public OGraphMLReader inputGraph(final Graph inputGraph, final InputStream graphMLInputStream, int bufferSize, String vertexIdKey, String edgeIdKey, String edgeLabelKey) throws IOException {
    XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    try {
        XMLStreamReader reader = inputFactory.createXMLStreamReader(graphMLInputStream);
        final OrientBaseGraph graph = (OrientBaseGraph) inputGraph;
        if (storeVertexIds)
            graph.setSaveOriginalIds(storeVertexIds);
        Map<String, String> keyIdMap = new HashMap<String, String>();
        Map<String, String> keyTypesMaps = new HashMap<String, String>();
        // <Mapped ID String, ID Object>
        // <Default ID String, Mapped ID String>
        Map<String, ORID> vertexMappedIdMap = new HashMap<String, ORID>();
        // Buffered Vertex Data
        String vertexId = null;
        Map<String, Object> vertexProps = null;
        boolean inVertex = false;
        // Buffered Edge Data
        String edgeId = null;
        String edgeLabel = null;
        String vertexLabel = null;
        // [0] = outVertex , [1] = inVertex
        Vertex[] edgeEndVertices = null;
        Map<String, Object> edgeProps = null;
        boolean inEdge = false;
        int bufferCounter = 0;
        long importedVertices = 0;
        long importedEdges = 0;
        while (reader.hasNext()) {
            Integer eventType = reader.next();
            if (eventType.equals(XMLEvent.START_ELEMENT)) {
                String elementName = reader.getName().getLocalPart();
                if (elementName.equals(GraphMLTokens.KEY)) {
                    String id = reader.getAttributeValue(null, GraphMLTokens.ID);
                    String attributeName = reader.getAttributeValue(null, GraphMLTokens.ATTR_NAME);
                    String attributeType = reader.getAttributeValue(null, GraphMLTokens.ATTR_TYPE);
                    keyIdMap.put(id, attributeName);
                    keyTypesMaps.put(id, attributeType);
                } else if (elementName.equals(GraphMLTokens.NODE)) {
                    vertexId = reader.getAttributeValue(null, GraphMLTokens.ID);
                    vertexLabel = reader.getAttributeValue(null, LABELS);
                    if (vertexLabel != null) {
                        if (vertexLabel.startsWith(":"))
                            // REMOVE : AS PREFIX
                            vertexLabel = vertexLabel.substring(1);
                        final String[] vertexLabels = vertexLabel.split(":");
                        // GET ONLY FIRST LABEL AS CLASS
                        vertexLabel = vertexId + ",class:" + vertexLabels[vertexLabelIndex];
                    } else
                        vertexLabel = vertexId;
                    inVertex = true;
                    vertexProps = new HashMap<String, Object>();
                } else if (elementName.equals(GraphMLTokens.EDGE)) {
                    edgeId = reader.getAttributeValue(null, GraphMLTokens.ID);
                    edgeLabel = reader.getAttributeValue(null, GraphMLTokens.LABEL);
                    edgeLabel = edgeLabel == null ? GraphMLTokens._DEFAULT : edgeLabel;
                    String[] vertexIds = new String[2];
                    vertexIds[0] = reader.getAttributeValue(null, GraphMLTokens.SOURCE);
                    vertexIds[1] = reader.getAttributeValue(null, GraphMLTokens.TARGET);
                    edgeEndVertices = new Vertex[2];
                    for (int i = 0; i < 2; i++) {
                        // i=0 => outVertex, i=1 => inVertex
                        if (vertexIdKey == null) {
                            edgeEndVertices[i] = null;
                        } else {
                            final Object vId = vertexMappedIdMap.get(vertexIds[i]);
                            edgeEndVertices[i] = vId != null ? graph.getVertex(vId) : null;
                        }
                        if (null == edgeEndVertices[i]) {
                            edgeEndVertices[i] = graph.addVertex(vertexLabel);
                            if (vertexIdKey != null) {
                                mapId(vertexMappedIdMap, vertexIds[i], (ORID) edgeEndVertices[i].getId());
                            }
                            bufferCounter++;
                            importedVertices++;
                            printStatus(reader, importedVertices, importedEdges);
                        }
                    }
                    inEdge = true;
                    vertexLabel = null;
                    edgeProps = new HashMap<String, Object>();
                } else if (elementName.equals(GraphMLTokens.DATA)) {
                    String key = reader.getAttributeValue(null, GraphMLTokens.KEY);
                    String attributeName = keyIdMap.get(key);
                    if (attributeName == null)
                        attributeName = key;
                    String value = reader.getElementText();
                    if (inVertex) {
                        if ((vertexIdKey != null) && (key.equals(vertexIdKey))) {
                            // Should occur at most once per Vertex
                            vertexId = value;
                        } else if (attributeName.equalsIgnoreCase(LABELS)) {
                        // IGNORE LABELS
                        } else {
                            final Object attrValue = typeCastValue(key, value, keyTypesMaps);
                            final OGraphMLImportStrategy strategy = vertexPropsStrategy.get(attributeName);
                            if (strategy != null) {
                                attributeName = strategy.transformAttribute(attributeName, attrValue);
                            }
                            if (attributeName != null)
                                vertexProps.put(attributeName, attrValue);
                        }
                    } else if (inEdge) {
                        if ((edgeLabelKey != null) && (key.equals(edgeLabelKey)))
                            edgeLabel = value;
                        else if ((edgeIdKey != null) && (key.equals(edgeIdKey)))
                            edgeId = value;
                        else {
                            final Object attrValue = typeCastValue(key, value, keyTypesMaps);
                            final OGraphMLImportStrategy strategy = edgePropsStrategy.get(attributeName);
                            if (strategy != null) {
                                attributeName = strategy.transformAttribute(attributeName, attrValue);
                            }
                            if (attributeName != null)
                                edgeProps.put(attributeName, attrValue);
                        }
                    }
                }
            } else if (eventType.equals(XMLEvent.END_ELEMENT)) {
                String elementName = reader.getName().getLocalPart();
                if (elementName.equals(GraphMLTokens.NODE)) {
                    ORID currentVertex = null;
                    if (vertexIdKey != null)
                        currentVertex = vertexMappedIdMap.get(vertexId);
                    if (currentVertex == null) {
                        final OrientVertex v = graph.addVertex(vertexLabel, vertexProps);
                        if (vertexIdKey != null)
                            mapId(vertexMappedIdMap, vertexId, v.getIdentity());
                        bufferCounter++;
                        importedVertices++;
                        printStatus(reader, importedVertices, importedEdges);
                    } else {
                        // UPDATE IT
                        final OrientVertex v = graph.getVertex(currentVertex);
                        v.setProperties(vertexProps);
                    }
                    vertexId = null;
                    vertexLabel = null;
                    vertexProps = null;
                    inVertex = false;
                } else if (elementName.equals(GraphMLTokens.EDGE)) {
                    Edge currentEdge = ((OrientVertex) edgeEndVertices[0]).addEdge(null, (OrientVertex) edgeEndVertices[1], edgeLabel, null, edgeProps);
                    bufferCounter++;
                    importedEdges++;
                    printStatus(reader, importedVertices, importedEdges);
                    edgeId = null;
                    edgeLabel = null;
                    edgeEndVertices = null;
                    edgeProps = null;
                    inEdge = false;
                }
            }
            if (bufferCounter > bufferSize) {
                graph.commit();
                bufferCounter = 0;
            }
        }
        reader.close();
        graph.commit();
    } catch (Exception xse) {
        throw OException.wrapException(new ODatabaseImportException("Error on importing GraphML"), xse);
    }
    return this;
}