diff options
Diffstat (limited to 'branches/sca-java-1.0/modules/implementation-node-xml/src/main')
2 files changed, 138 insertions, 0 deletions
diff --git a/branches/sca-java-1.0/modules/implementation-node-xml/src/main/java/org/apache/tuscany/sca/implementation/node/xml/NodeImplementationProcessor.java b/branches/sca-java-1.0/modules/implementation-node-xml/src/main/java/org/apache/tuscany/sca/implementation/node/xml/NodeImplementationProcessor.java new file mode 100644 index 0000000000..b07d57cce6 --- /dev/null +++ b/branches/sca-java-1.0/modules/implementation-node-xml/src/main/java/org/apache/tuscany/sca/implementation/node/xml/NodeImplementationProcessor.java @@ -0,0 +1,119 @@ +/* + * 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.node.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.Composite; +import org.apache.tuscany.sca.assembly.xml.Constants; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor; +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.node.NodeImplementation; +import org.apache.tuscany.sca.implementation.node.NodeImplementationFactory; + + +/** + * Implements a STAX artifact processor for node implementations. + */ +public class NodeImplementationProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor<NodeImplementation> { + private static final QName IMPLEMENTATION_NODE = new QName(Constants.SCA10_TUSCANY_NS, "implementation.node"); + + private AssemblyFactory assemblyFactory; + private NodeImplementationFactory implementationFactory; + + public NodeImplementationProcessor(ModelFactoryExtensionPoint modelFactories) { + assemblyFactory = modelFactories.getFactory(AssemblyFactory.class); + implementationFactory = modelFactories.getFactory(NodeImplementationFactory.class); + } + + public QName getArtifactType() { + // Returns the qname of the XML element processed by this processor + return IMPLEMENTATION_NODE; + } + + public Class<NodeImplementation> getModelType() { + // Returns the type of model processed by this processor + return NodeImplementation.class; + } + + public NodeImplementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + + // Read an <implementation.node> element + NodeImplementation implementation = implementationFactory.createNodeImplementation(); + implementation.setUnresolved(true); + + // Read the composite attribute + QName qname = getQName(reader, "composite"); + if (qname != null) { + Composite composite = assemblyFactory.createComposite(); + composite.setName(qname); + composite.setUnresolved(true); + implementation.setComposite(composite); + } + + // Skip to end element + while (reader.hasNext()) { + if (reader.next() == END_ELEMENT && IMPLEMENTATION_NODE.equals(reader.getName())) { + break; + } + } + + return implementation; + } + + public void resolve(NodeImplementation implementation, ModelResolver resolver) throws ContributionResolveException { + + // Resolve the referenced composite + Composite composite = implementation.getComposite(); + if (composite != null) { + composite = resolver.resolveModel(Composite.class, composite); + if (!composite.isUnresolved()) { + implementation.setComposite(composite); + } + } + implementation.setUnresolved(false); + } + + public void write(NodeImplementation implementation, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException { + + // Write <implementation.resource> + Composite composite = implementation.getComposite(); + QName qname; + if (composite != null) { + qname = composite.getName(); + } else { + qname = null; + } + writeStart(writer, IMPLEMENTATION_NODE.getNamespaceURI(), IMPLEMENTATION_NODE.getLocalPart(), + new XAttr("composite", qname)); + + writeEnd(writer); + } +} diff --git a/branches/sca-java-1.0/modules/implementation-node-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor b/branches/sca-java-1.0/modules/implementation-node-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor new file mode 100644 index 0000000000..728c4e2645 --- /dev/null +++ b/branches/sca-java-1.0/modules/implementation-node-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor @@ -0,0 +1,19 @@ +# 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. + +# Implementation class for the artifact processor extension +org.apache.tuscany.sca.implementation.node.xml.NodeImplementationProcessor;qname=http://tuscany.apache.org/xmlns/sca/1.0#implementation.node,model=org.apache.tuscany.sca.implementation.node.NodeImplementation,factory=org.apache.tuscany.sca.implementation.node.NodeImplementationFactory |