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author | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:20:01 +0000 |
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committer | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:20:01 +0000 |
commit | 9f79c8a050ff86907695027893e56080988c09d8 (patch) | |
tree | ef01b66b4a3ea89480b79fdd194f9694235d559b /sca-java-1.x/tags/2.0-M1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java | |
parent | fdd5b43d3c139cf2cbd1655d2efbfaf9032a5b5e (diff) |
Moving 2.x tags
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835147 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sca-java-1.x/tags/2.0-M1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java')
-rw-r--r-- | sca-java-1.x/tags/2.0-M1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/2.0-M1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java b/sca-java-1.x/tags/2.0-M1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java new file mode 100644 index 0000000000..68c46a2301 --- /dev/null +++ b/sca-java-1.x/tags/2.0-M1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java @@ -0,0 +1,161 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.sca.contribution.processor.xml; + +import static javax.xml.stream.XMLStreamConstants.CDATA; +import static javax.xml.stream.XMLStreamConstants.CHARACTERS; +import static javax.xml.stream.XMLStreamConstants.END_ELEMENT; +import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import javax.xml.namespace.NamespaceContext; +import javax.xml.namespace.QName; +import javax.xml.stream.XMLEventReader; +import javax.xml.stream.XMLInputFactory; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamWriter; +import javax.xml.stream.events.XMLEvent; + +import org.apache.tuscany.sca.contribution.Constants; +import org.apache.tuscany.sca.contribution.processor.ContributionReadException; +import org.apache.tuscany.sca.contribution.processor.ContributionResolveException; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.core.FactoryExtensionPoint; +import org.apache.tuscany.sca.monitor.Monitor; + +public class AnyElementProcessor implements StAXArtifactProcessor<Object> { + private static final QName ANY_ELEMENT = new QName(Constants.XMLSCHEMA_NS, "anyElement"); + + private XMLInputFactory xmlInputFactory; + @SuppressWarnings("unused") + private Monitor monitor; + + + public AnyElementProcessor(FactoryExtensionPoint modelFactories, Monitor monitor) { + xmlInputFactory = modelFactories.getFactory(XMLInputFactory.class); + this.monitor = monitor; + } + + public QName getArtifactType() { + return ANY_ELEMENT; + } + + public Class<Object> getModelType() { + return Object.class; + } + + /** + * Reads the contetns of the unknown elements and generates a custom + * implementation of XMLStreamReader i.e. XMLEventsStreamReader + * + * @param reader + * @return + * @throws XMLStreamException + */ + @SuppressWarnings("unchecked") + public Object read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + + // Custom variables + String currentElement = null; + List eventsList = new ArrayList(); + + Map<String, NamespaceContext> eventContext = new HashMap<String, NamespaceContext>(); + + try { + // Cast the block of unknown elements into document + XMLDocumentStreamReader docReader = new XMLDocumentStreamReader(reader); + + XMLEventReader xmlEventReader = xmlInputFactory.createXMLEventReader(docReader); + + while (xmlEventReader.hasNext()) { + XMLEvent event = xmlEventReader.nextEvent(); + + // Populate the eventContext map with the current element's name + // and corresponding NamesapceContext + if (currentElement != null && !(eventContext.containsKey(currentElement))) { + eventContext.put(currentElement, reader.getNamespaceContext()); + } + + // Populate the list with the XMLEvents + eventsList.add(event); + if (event.isStartElement()) { + currentElement = reader.getName().getLocalPart(); + } + if (event.isEndDocument()) { + return new XMLEventsStreamReader(eventsList, eventContext); + } + } + } catch (Exception e) { + e.printStackTrace(); + } + return null; + } + + /** + * Writes unknown portions back to the writer + * + * @param model + * @param writer + */ + public void write(Object model, XMLStreamWriter writer) throws XMLStreamException { + if (!(model instanceof XMLStreamReader)) { + return; + } + XMLStreamReader reader = (XMLStreamReader)model; + + int event = reader.getEventType(); + while (reader.hasNext()) { + switch (event) { + case START_ELEMENT: + + writer.writeStartElement(reader.getPrefix(), reader.getLocalName(), reader.getNamespaceURI()); + for (int i = 1; i <= reader.getAttributeCount(); i++) { + writer.writeAttribute(reader.getAttributePrefix(i), reader.getAttributeNamespace(i), reader + .getAttributeLocalName(i), reader.getAttributeValue(i)); + } + break; + + case CHARACTERS: + writer.writeCharacters(reader.getText()); + break; + + case CDATA: + writer.writeCData(reader.getText()); + break; + + case END_ELEMENT: + writer.writeEndElement(); + break; + } + if (reader.hasNext()) { + event = reader.next(); + } + } + } + + public void resolve(Object model, ModelResolver resolver) throws ContributionResolveException { + + } +} |