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Diffstat (limited to 'sca-java-1.x/branches/sca-java-20080910/modules/implementation-data-xml/src/main/java/org/apache/tuscany/sca/implementation/data/DATAImplementationProcessor.java')
-rw-r--r-- | sca-java-1.x/branches/sca-java-20080910/modules/implementation-data-xml/src/main/java/org/apache/tuscany/sca/implementation/data/DATAImplementationProcessor.java | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-20080910/modules/implementation-data-xml/src/main/java/org/apache/tuscany/sca/implementation/data/DATAImplementationProcessor.java b/sca-java-1.x/branches/sca-java-20080910/modules/implementation-data-xml/src/main/java/org/apache/tuscany/sca/implementation/data/DATAImplementationProcessor.java new file mode 100644 index 0000000000..16c5a370ec --- /dev/null +++ b/sca-java-1.x/branches/sca-java-20080910/modules/implementation-data-xml/src/main/java/org/apache/tuscany/sca/implementation/data/DATAImplementationProcessor.java @@ -0,0 +1,132 @@ +/* + * 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.data; + +import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; + +import javax.xml.namespace.QName; +import javax.xml.stream.XMLStreamConstants; +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.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.data.engine.ConnectionInfoArtifactProcessor; +import org.apache.tuscany.sca.data.engine.config.ConnectionInfo; +import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory; +import org.apache.tuscany.sca.monitor.Monitor; + + +/** + * Implements a StAX artifact processor for DATA implementations. + * + * The artifact processor is responsible for processing <implementation.data> + * elements in SCA assembly XML composite files and populating the DATA + * implementation model, resolving its references to other artifacts in the SCA + * contribution, and optionally write the model back to SCA assembly XML. + * + * @version $Rev$ $Date$ + */ +public class DATAImplementationProcessor implements StAXArtifactProcessor<DATAImplementation> { + protected static final QName IMPLEMENTATION_DATA_XML = new QName(Constants.SCA10_TUSCANY_NS, "implementation.data.xml"); + + private DATAImplementationFactory dataFactory; + private Monitor monitor; + private StAXArtifactProcessor<ConnectionInfo> connectionInfoProcessor; + + public DATAImplementationProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) { + AssemblyFactory assemblyFactory = modelFactories.getFactory(AssemblyFactory.class); + JavaInterfaceFactory javaFactory = modelFactories.getFactory(JavaInterfaceFactory.class); + this.monitor = monitor; + this.dataFactory = new DATAImplementationFactory(assemblyFactory, javaFactory); + this.connectionInfoProcessor = new ConnectionInfoArtifactProcessor(modelFactories, this.monitor); + } + + public QName getArtifactType() { + // Returns the qname of the XML element processed by this processor + return IMPLEMENTATION_DATA_XML; + } + + public Class<DATAImplementation> getModelType() { + // Returns the type of model processed by this processor + return DATAImplementation.class; + } + + /* + * <component name="CompanyDataComponent"> + * <implementation.data.xml> + * <connectionInfo> + * <connectionProperties + * driverClass="org.apache.derby.jdbc.EmbeddedDriver" + * databaseURL="jdbc:derby:target/test-classes/dastest; create = true" + * loginTimeout="600000"/> + * </connectionInfo> + * </implementation.data> + * </component> + */ + public DATAImplementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + assert IMPLEMENTATION_DATA_XML.equals(reader.getName()); + + // Read an <implementation.data.xml> element + + // Create an initialize the DAS implementation model + DATAImplementation implementation = dataFactory.createDASImplementation(); + + while (true) { + int event = reader.next(); + switch (event) { + + case START_ELEMENT: + if (ConnectionInfoArtifactProcessor.CONNECTION_INFO.equals(reader.getName())) { + + // Read connection info + ConnectionInfo connectionInfo = (ConnectionInfo) connectionInfoProcessor.read(reader); + implementation.setConnectionInfo(connectionInfo); + } + break; + case XMLStreamConstants.END_ELEMENT: + if (IMPLEMENTATION_DATA_XML.equals(reader.getName())) { + return implementation; + } + break; + } + } + + } + + public void resolve(DATAImplementation impl, ModelResolver resolver) throws ContributionResolveException { + } + + public void write(DATAImplementation implementation, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException { + writer.writeStartElement(IMPLEMENTATION_DATA_XML.getNamespaceURI(), IMPLEMENTATION_DATA_XML.getLocalPart()); + + if (implementation.getConnectionInfo() != null) { + connectionInfoProcessor.write(implementation.getConnectionInfo(), writer); + } + + writer.writeEndElement(); + } +} |