diff options
Diffstat (limited to 'tags/java/sca/1.5.1/modules/implementation-xquery/src/main/java/org/apache/tuscany/sca/implementation/xquery/xml/XQueryImplementationProcessor.java')
| -rw-r--r-- | tags/java/sca/1.5.1/modules/implementation-xquery/src/main/java/org/apache/tuscany/sca/implementation/xquery/xml/XQueryImplementationProcessor.java | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/tags/java/sca/1.5.1/modules/implementation-xquery/src/main/java/org/apache/tuscany/sca/implementation/xquery/xml/XQueryImplementationProcessor.java b/tags/java/sca/1.5.1/modules/implementation-xquery/src/main/java/org/apache/tuscany/sca/implementation/xquery/xml/XQueryImplementationProcessor.java new file mode 100644 index 0000000000..12c478daea --- /dev/null +++ b/tags/java/sca/1.5.1/modules/implementation-xquery/src/main/java/org/apache/tuscany/sca/implementation/xquery/xml/XQueryImplementationProcessor.java @@ -0,0 +1,159 @@ +/* + * 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.implementation.xquery.xml; + +import static javax.xml.stream.XMLStreamConstants.END_ELEMENT; + +import javax.xml.namespace.QName; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamWriter; + +import org.apache.tuscany.sca.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.xml.Constants; +import org.apache.tuscany.sca.contribution.Artifact; +import org.apache.tuscany.sca.contribution.ContributionFactory; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.service.ContributionReadException; +import org.apache.tuscany.sca.contribution.service.ContributionResolveException; +import org.apache.tuscany.sca.contribution.service.ContributionWriteException; +import org.apache.tuscany.sca.implementation.xquery.XQueryImplementation; +import org.apache.tuscany.sca.implementation.xquery.XQueryImplementationFactory; +import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.monitor.Problem; +import org.apache.tuscany.sca.monitor.Problem.Severity; +import org.apache.tuscany.sca.monitor.impl.ProblemImpl; + +/** + * Processor for the XQuery implementation type artifact + * @version $Rev$ $Date$ + */ +public class XQueryImplementationProcessor implements StAXArtifactProcessor<XQueryImplementation> { + + private static final String LOCATION = "location"; + private static final String IMPLEMENTATION_XQUERY = "implementation.xquery"; + private static final QName IMPLEMENTATION_XQUERY_QNAME = + new QName(Constants.SCA10_TUSCANY_NS, IMPLEMENTATION_XQUERY); + + private AssemblyFactory assemblyFactory; + private JavaInterfaceFactory javaFactory; + private ContributionFactory contributionFactory; + private Monitor monitor; + + public XQueryImplementationProcessor(ModelFactoryExtensionPoint modelFactoryExtensionPoint, Monitor monitor) { + assemblyFactory = modelFactoryExtensionPoint.getFactory(AssemblyFactory.class); + javaFactory = modelFactoryExtensionPoint.getFactory(JavaInterfaceFactory.class); + contributionFactory = modelFactoryExtensionPoint.getFactory(ContributionFactory.class); + this.monitor = monitor; + } + + /** + * Report a error. + * + * @param problems + * @param message + * @param model + */ + private void error(String message, Object model, Object... messageParameters) { + if (monitor != null) { + Problem problem = new ProblemImpl(this.getClass().getName(), "impl-xquery-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters); + monitor.problem(problem); + } + } + + public QName getArtifactType() { + return IMPLEMENTATION_XQUERY_QNAME; + } + + /** + * Reads from the stream and sets the location attribute of the implementation correspondingly + */ + public XQueryImplementation read(XMLStreamReader reader) + throws ContributionReadException, XMLStreamException { + + /* Create the XQuery implementation and set the location into it */ + XQueryImplementation xqueryImplementation = null; + + /* Read the location attribute for the XQuery implementation */ + String xqueryLocation = reader.getAttributeValue(null, LOCATION); + if (xqueryLocation != null) { + xqueryImplementation = XQueryImplementationFactory.INSTANCE.createXQueryImplementation(); + xqueryImplementation.setLocation(xqueryLocation); + xqueryImplementation.setUnresolved(true); + } else { + error("LocationAttributeMissing", reader); + //throw new ContributionReadException(MSG_LOCATION_MISSING); + } + + // Skip to end element + while (reader.hasNext()) { + if (reader.next() == END_ELEMENT && IMPLEMENTATION_XQUERY_QNAME.equals(reader.getName())) { + break; + } + } // end while + + return xqueryImplementation; + } + + public void write(XQueryImplementation xqueryImplementation, XMLStreamWriter writer) + throws ContributionWriteException, XMLStreamException { + + writer.writeStartElement(Constants.SCA10_TUSCANY_NS, IMPLEMENTATION_XQUERY); + if (xqueryImplementation.getLocation() != null) { + writer.writeAttribute(LOCATION, xqueryImplementation.getLocation()); + } + writer.writeEndElement(); + + } + + public Class<XQueryImplementation> getModelType() { + return XQueryImplementation.class; + } + + /** + * Resolves the implementation: its services and references, by invoking the XQuery + * introspector + */ + public void resolve(XQueryImplementation xqueryImplementation, ModelResolver resolver) + throws ContributionResolveException { + + if (xqueryImplementation != null) { + Artifact artifact = contributionFactory.createArtifact(); + artifact.setURI(xqueryImplementation.getLocation()); + artifact = resolver.resolveModel(Artifact.class, artifact); + if (artifact.getLocation() != null) { + xqueryImplementation.setLocationURL(artifact.getLocation()); + + XQueryIntrospector introspector = new XQueryIntrospector(assemblyFactory, javaFactory); + + boolean success = introspector.introspect(xqueryImplementation, resolver); + if (success) { + xqueryImplementation.setUnresolved(false); + } + } else { + error("CouldNotLocateFile", resolver, xqueryImplementation.getLocation()); + //throw new ContributionResolveException("Could not locate file: " + xqueryImplementation.getLocation()); + } + } + } + +} |