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Diffstat (limited to 'tags/java/sca/1.5.1/modules/binding-ejb/src/main/java/org/apache/tuscany/sca/binding/ejb/impl/EJBBindingProcessor.java')
| -rw-r--r-- | tags/java/sca/1.5.1/modules/binding-ejb/src/main/java/org/apache/tuscany/sca/binding/ejb/impl/EJBBindingProcessor.java | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/tags/java/sca/1.5.1/modules/binding-ejb/src/main/java/org/apache/tuscany/sca/binding/ejb/impl/EJBBindingProcessor.java b/tags/java/sca/1.5.1/modules/binding-ejb/src/main/java/org/apache/tuscany/sca/binding/ejb/impl/EJBBindingProcessor.java new file mode 100644 index 0000000000..305cd2a742 --- /dev/null +++ b/tags/java/sca/1.5.1/modules/binding-ejb/src/main/java/org/apache/tuscany/sca/binding/ejb/impl/EJBBindingProcessor.java @@ -0,0 +1,231 @@ +/* + * 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.binding.ejb.impl; + +import javax.xml.namespace.QName; +import javax.xml.stream.XMLInputFactory; +import javax.xml.stream.XMLOutputFactory; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamWriter; + +import org.apache.tuscany.sca.assembly.Extension; +import org.apache.tuscany.sca.assembly.ExtensionFactory; +import org.apache.tuscany.sca.assembly.xml.Constants; +import org.apache.tuscany.sca.assembly.xml.PolicyAttachPointProcessor; +import org.apache.tuscany.sca.binding.ejb.EJBBinding; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.processor.ExtensibleStAXAttributeProcessor; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.processor.StAXAttributeProcessor; +import org.apache.tuscany.sca.contribution.processor.StAXAttributeProcessorExtensionPoint; +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.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.policy.PolicyFactory; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.monitor.MonitorFactory; +import org.apache.tuscany.sca.monitor.Problem; +import org.apache.tuscany.sca.monitor.Problem.Severity; +import org.apache.tuscany.sca.monitor.impl.ProblemImpl; + +/** + * A processor to read the XML that describes the EJB binding... + * + * <binding.ejb + * homeInterface="NCName"? + * ejb-link-name="NCName"? + * session-type="stateful or stateless"? + * ejb-version="EJB2 or EJB3"? + * name="NCName"? + * policySets=" sca:listOfQNames"? + * requires="sca:listOfQNames"? + * uri="anyURI"? + * > + * + * <!-- additional elements here --> + * + * </binding.ejb> + * + * @version $Rev$ $Date$ + */ +public class EJBBindingProcessor implements StAXArtifactProcessor<EJBBindingImpl> { + private PolicyFactory policyFactory; + private ExtensionFactory extensionFactory; + private PolicyAttachPointProcessor policyProcessor; + private StAXAttributeProcessor<Object> extensionAttributeProcessor; + private Monitor monitor; + + public EJBBindingProcessor(ExtensionPointRegistry extensionPoints) { + ModelFactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(ModelFactoryExtensionPoint.class); + + this.policyFactory = modelFactories.getFactory(PolicyFactory.class); + this.extensionFactory = modelFactories.getFactory(ExtensionFactory.class); + this.policyProcessor = new PolicyAttachPointProcessor(policyFactory); + + XMLInputFactory inputFactory = modelFactories.getFactory(XMLInputFactory.class); + XMLOutputFactory outputFactory = modelFactories.getFactory(XMLOutputFactory.class); + StAXAttributeProcessorExtensionPoint attributeExtensionPoint = extensionPoints.getExtensionPoint(StAXAttributeProcessorExtensionPoint.class); + this.extensionAttributeProcessor = new ExtensibleStAXAttributeProcessor(attributeExtensionPoint ,inputFactory, outputFactory, this.monitor); + + + UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class); + MonitorFactory monitorFactory = utilities.getUtility(MonitorFactory.class); + if (monitorFactory != null) { + this.monitor = monitorFactory.createMonitor(); + } + } + + /** + * 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(), "binding-ejb-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters); + monitor.problem(problem); + } + } + + /** + * {@inheritDoc} + */ + public QName getArtifactType() { + return EJBBinding.BINDING_EJB_QNAME; + } + + /** + * {@inheritDoc} + */ + public EJBBindingImpl read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + EJBBindingImpl ejbBinding = new EJBBindingImpl(); + + // Read the policies + policyProcessor.readPolicies(ejbBinding, reader); + + // Read the name + String name = reader.getAttributeValue(null, EJBBinding.NAME); + if (name != null) { + ejbBinding.setName(name); + } + + // Read binding URI + String uri = reader.getAttributeValue(null, EJBBinding.URI); + if (uri != null) { + ejbBinding.setURI(uri); + } + + String homeInterface = reader.getAttributeValue(null, EJBBinding.HOME_INTERFACE); + if (homeInterface != null) { + ejbBinding.setHomeInterface(homeInterface); + } + + String ejbLinkName = reader.getAttributeValue(null, EJBBinding.EJB_LINK_NAME); + if (ejbLinkName != null) { + ejbBinding.setEjbLinkName(ejbLinkName); + } + + String sessionType = reader.getAttributeValue(null, EJBBinding.SESSION_TYPE); + if (sessionType != null) { + if (sessionType.equals("stateless")) { + ejbBinding.setSessionType(EJBBinding.SessionType.STATELESS); + } else if (sessionType.equals("stateful")) { + ejbBinding.setSessionType(EJBBinding.SessionType.STATEFUL); + } else { + error("UnknownEJBSessionType", reader, sessionType, name); + //throw new ContributionReadException("Unknown EJB Session Type of " + sessionType + " for " + name); + } + } + + String ejbVersion = reader.getAttributeValue(null, EJBBinding.EJB_VERSION); + if (ejbVersion != null) { + if (ejbVersion.equals("EJB2")) { + ejbBinding.setEjbVersion(EJBBinding.EJBVersion.EJB2); + } else if (ejbVersion.equals("EJB3")) { + ejbBinding.setEjbVersion(EJBBinding.EJBVersion.EJB3); + } else { + error("UnknownEJBVersion", reader, ejbVersion, name); + //throw new ContributionReadException("Unknown EJB Version of " + ejbVersion + " for " + name); + } + } + + // TODO: Read requires + String requires = reader.getAttributeValue(null, EJBBinding.REQUIRES); + if (requires != null) { + ejbBinding.setRequires(requires); + } + + // Handle extended attributes + QName elementName = reader.getName(); + for (int a = 0; a < reader.getAttributeCount(); a++) { + QName attributeName = reader.getAttributeName(a); + if( attributeName.getNamespaceURI() != null && attributeName.getNamespaceURI().length() > 0) { + if( ! elementName.getNamespaceURI().equals(attributeName.getNamespaceURI()) ) { + Object attributeValue = extensionAttributeProcessor.read(attributeName, reader); + Extension attributeExtension; + if (attributeValue instanceof Extension) { + attributeExtension = (Extension) attributeValue; + } else { + attributeExtension = extensionFactory.createExtension(attributeName, attributeValue, true); + } + ejbBinding.getAttributeExtensions().add(attributeExtension); + } + } + } + + return ejbBinding; + } + + public void write(EJBBindingImpl ejbBinding, XMLStreamWriter writer) throws ContributionWriteException, + XMLStreamException { + // Write a <binding.ejb> + writer.writeStartElement(Constants.SCA10_NS, EJBBinding.BINDING_EJB); + + if (ejbBinding.getName() != null){ + writer.writeAttribute(EJBBinding.NAME, ejbBinding.getName()); + } + + if (ejbBinding.getURI() != null){ + writer.writeAttribute(EJBBinding.URI, ejbBinding.getURI()); + } + + for(Extension extension : ejbBinding.getAttributeExtensions()) { + if(extension.isAttribute()) { + extensionAttributeProcessor.write(extension, writer); + } + } + + // FIXME Implement the rest + + writer.writeEndElement(); + } + + public Class<EJBBindingImpl> getModelType() { + return EJBBindingImpl.class; + } + + public void resolve(EJBBindingImpl ejbBinding, ModelResolver modelResolver) throws ContributionResolveException { + } +} |