diff options
Diffstat (limited to 'sandbox/sebastien/java/sca-node/modules/contribution-updater/src/main/java/org/apache/tuscany/sca/assembly/xml/MetaComponentProcessor.java')
| -rw-r--r-- | sandbox/sebastien/java/sca-node/modules/contribution-updater/src/main/java/org/apache/tuscany/sca/assembly/xml/MetaComponentProcessor.java | 788 |
1 files changed, 788 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/sca-node/modules/contribution-updater/src/main/java/org/apache/tuscany/sca/assembly/xml/MetaComponentProcessor.java b/sandbox/sebastien/java/sca-node/modules/contribution-updater/src/main/java/org/apache/tuscany/sca/assembly/xml/MetaComponentProcessor.java new file mode 100644 index 0000000000..44673bfdb9 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/contribution-updater/src/main/java/org/apache/tuscany/sca/assembly/xml/MetaComponentProcessor.java @@ -0,0 +1,788 @@ +/* + * 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.assembly.xml; + +import static javax.xml.stream.XMLStreamConstants.END_ELEMENT; +import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; + +import java.util.ArrayList; +import java.util.List; +import java.util.StringTokenizer; + +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.Binding; +import org.apache.tuscany.sca.assembly.Callback; +import org.apache.tuscany.sca.assembly.Component; +import org.apache.tuscany.sca.assembly.ComponentProperty; +import org.apache.tuscany.sca.assembly.ComponentReference; +import org.apache.tuscany.sca.assembly.ComponentService; +import org.apache.tuscany.sca.assembly.Composite; +import org.apache.tuscany.sca.assembly.CompositeReference; +import org.apache.tuscany.sca.assembly.CompositeService; +import org.apache.tuscany.sca.assembly.ConstrainingType; +import org.apache.tuscany.sca.assembly.Contract; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.assembly.Property; +import org.apache.tuscany.sca.assembly.Reference; +import org.apache.tuscany.sca.assembly.Service; +import org.apache.tuscany.sca.assembly.Wire; +import org.apache.tuscany.sca.contribution.ContributionFactory; +import org.apache.tuscany.sca.contribution.DeployedArtifact; +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.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.policy.PolicyFactory; +import org.apache.tuscany.sca.policy.PolicySetAttachPoint; +import org.apache.tuscany.sca.policy.util.PolicyValidationException; +import org.w3c.dom.Document; + +/** + * A component processor. + * + * @version $Rev$ $Date$ + */ +public class MetaComponentProcessor extends BaseAssemblyProcessor implements + StAXArtifactProcessor<Component> { + + /** + * Construct a new composite processor + * + * @param contributionFactory + * @param assemblyFactory + * @param policyFactory + * @param extensionProcessor + */ + private Composite composite = null; + private Component generatedComponent = null; + + public MetaComponentProcessor(ContributionFactory contributionFactory, + AssemblyFactory factory, PolicyFactory policyFactory, + InterfaceContractMapper interfaceContractMapper, + StAXArtifactProcessor extensionProcessor) { + super(contributionFactory, factory, policyFactory, extensionProcessor); + } + + /** + * Construct a new composite processor + * + * @param assemblyFactory + * @param policyFactory + * @param extensionProcessor + * public CompositeProcessor(AssemblyFactory factory, + * PolicyFactory policyFactory, InterfaceContractMapper + * interfaceContractMapper, StAXArtifactProcessor + * extensionProcessor) { super(factory, policyFactory, + * extensionProcessor); } + */ + public void setComposite(Composite c) { + composite = c; + } + + public Component getParsedComponent() { + return this.generatedComponent; + } + + public Composite getParsedComposite() { + return this.composite; + } + + public Component read(XMLStreamReader reader) + throws ContributionReadException, XMLStreamException { + Composite include = null; + Component component = null; + Property property = null; + ComponentService componentService = null; + ComponentReference componentReference = null; + ComponentProperty componentProperty = null; + CompositeService compositeService = null; + CompositeReference compositeReference = null; + Contract contract = null; + Wire wire = null; + Callback callback = null; + QName name = null; + + // Read the component scdl + + while (reader.hasNext()) { + int event = reader.getEventType(); + switch (event) { + case START_ELEMENT: + QName itemName = reader.getName(); + if (!itemName.getNamespaceURI().equals(SCA10_NS)) + name = new QName(SCA10_NS, itemName.getLocalPart()); + else + name = itemName; + + if (SERVICE_QNAME.equals(name)) { + if (component != null) { + + // Read a <component><service> + componentService = assemblyFactory + .createComponentService(); + contract = componentService; + componentService.setName(getString(reader, NAME)); + component.getServices().add(componentService); + policyProcessor.readPolicies(contract, reader); + } + + } else if (REFERENCE_QNAME.equals(name)) { + if (component != null) { + // Read a <component><reference> + componentReference = assemblyFactory + .createComponentReference(); + contract = componentReference; + componentReference.setName(getString(reader, NAME)); + readMultiplicity(componentReference, reader); + if (isSet(reader, AUTOWIRE)) { + componentReference.setAutowire(getBoolean(reader, + AUTOWIRE)); + } + readTargets(componentReference, reader); + componentReference.setWiredByImpl(getBoolean(reader, + WIRED_BY_IMPL)); + component.getReferences().add(componentReference); + policyProcessor.readPolicies(contract, reader); + } + + } else if (PROPERTY_QNAME.equals(name)) { + if (component != null) { + + // Read a <component><property> + componentProperty = assemblyFactory + .createComponentProperty(); + property = componentProperty; + componentProperty.setSource(getString(reader, SOURCE)); + componentProperty.setFile(getString(reader, FILE)); + policyProcessor.readPolicies(property, reader); + readAbstractProperty(componentProperty, reader); + + // Read the property value + Document value = readPropertyValue(property + .getXSDElement(), property.getXSDType(), reader); + property.setValue(value); + + component.getProperties().add(componentProperty); + } + } else if (COMPONENT_QNAME.equals(name)) { + + // Read a <component> + component = assemblyFactory.createComponent(); + component.setName(getString(reader, NAME)); + if (isSet(reader, AUTOWIRE)) { + component.setAutowire(getBoolean(reader, AUTOWIRE)); + } + if (isSet(reader, URI)) { + component.setURI(getString(reader, URI)); + } + component.setConstrainingType(readConstrainingType(reader)); + composite.getComponents().add(component); + policyProcessor.readPolicies(component, reader); + + } else if (WIRE_QNAME.equals(name)) { + + // Read a <wire> + wire = assemblyFactory.createWire(); + ComponentReference source = assemblyFactory + .createComponentReference(); + source.setUnresolved(true); + source.setName(getString(reader, SOURCE)); + wire.setSource(source); + + ComponentService target = assemblyFactory + .createComponentService(); + target.setUnresolved(true); + target.setName(getString(reader, TARGET)); + wire.setTarget(target); + + composite.getWires().add(wire); + policyProcessor.readPolicies(wire, reader); + + } else if (CALLBACK_QNAME.equals(name)) { + + // Read a <callback> + callback = assemblyFactory.createCallback(); + contract.setCallback(callback); + policyProcessor.readPolicies(callback, reader); + + } else if (OPERATION_QNAME.equals(name)) { + + // Read an <operation> + Operation operation = assemblyFactory.createOperation(); + operation.setName(getString(reader, NAME)); + operation.setUnresolved(true); + if (callback != null) { + policyProcessor.readPolicies(callback, operation, + reader); + } else { + policyProcessor.readPolicies(contract, operation, + reader); + } + } else if (IMPLEMENTATION_COMPOSITE_QNAME.equals(name)) { + + // Read an implementation.composite + Composite implementation = assemblyFactory + .createComposite(); + implementation.setName(getQName(reader, NAME)); + implementation.setUnresolved(true); + component.setImplementation(implementation); + policyProcessor.readPolicies(implementation, reader); + } else { + + // Read an extension element + Object extension = extensionProcessor.read(reader); + if (extension != null) { + if (extension instanceof InterfaceContract) { + + // <service><interface> and + // <reference><interface> + if (contract != null) { + contract + .setInterfaceContract((InterfaceContract) extension); + } else { + if (name.getNamespaceURI().equals(SCA10_NS)) { + throw new ContributionReadException( + "Unexpected <interface> element found. It should appear inside a <service> or <reference> element"); + } else { + composite.getExtensions().add(extension); + } + } + + } else if (extension instanceof Binding) { + // <service><binding> and + // <reference><binding> + if (callback != null) { + callback.getBindings().add((Binding) extension); + } else { + if (contract != null) { + contract.getBindings().add( + (Binding) extension); + } else { + if (name.getNamespaceURI().equals(SCA10_NS)) { + throw new ContributionReadException( + "Unexpected <binding> element found. It should appear inside a <service> or <reference> element"); + } else { + composite.getExtensions() + .add(extension); + } + } + } + + } else if (extension instanceof Implementation) { + + // <component><implementation> + if (component != null) { + component + .setImplementation((Implementation) extension); + } else { + if (name.getNamespaceURI().equals(SCA10_NS)) { + throw new ContributionReadException( + "Unexpected <implementation> element found. It should appear inside a <component> element"); + } else { + composite.getExtensions().add(extension); + } + } + } else { + + // Add the extension element to the current + // element + if (callback != null) { + callback.getExtensions().add(extension); + } else if (contract != null) { + contract.getExtensions().add(extension); + } else if (property != null) { + property.getExtensions().add(extension); + } else if (component != null) { + component.getExtensions().add(extension); + } else { + composite.getExtensions().add(extension); + } + } + } + } + break; + + case XMLStreamConstants.CHARACTERS: + break; + + case END_ELEMENT: + name = reader.getName(); + + // Clear current state when reading reaching end element + if (SERVICE_QNAME.equals(name)) { + componentService = null; + compositeService = null; + contract = null; + } else if (INCLUDE_QNAME.equals(name)) { + include = null; + } else if (REFERENCE_QNAME.equals(name)) { + componentReference = null; + compositeReference = null; + contract = null; + } else if (PROPERTY_QNAME.equals(name)) { + componentProperty = null; + property = null; + } else if (COMPONENT_QNAME.equals(name)) { + // component = null; + } else if (WIRE_QNAME.equals(name)) { + wire = null; + } else if (CALLBACK_QNAME.equals(name)) { + callback = null; + } + break; + } + + // Read the next element + if (reader.hasNext()) { + reader.next(); + } + } + this.generatedComponent = component; + return component; + } + + public void write(Composite composite, XMLStreamWriter writer) + throws ContributionWriteException, XMLStreamException { + + // Write <composite> element + writeStartDocument(writer, COMPOSITE, writeConstrainingType(composite), + new XAttr(TARGET_NAMESPACE, composite.getName() + .getNamespaceURI()), new XAttr(NAME, composite + .getName().getLocalPart()), new XAttr(AUTOWIRE, + composite.getAutowire()), policyProcessor + .writePolicies(composite)); + + // Write <service> elements + for (Service service : composite.getServices()) { + CompositeService compositeService = (CompositeService) service; + Component promotedComponent = compositeService + .getPromotedComponent(); + ComponentService promotedService = compositeService + .getPromotedService(); + String promote; + if (promotedService != null) { + if (promotedService.getName() != null) { + promote = promotedComponent.getName() + '/' + + promotedService.getService(); + } else { + promote = promotedComponent.getName(); + } + } else { + promote = null; + } + writeStart(writer, SERVICE, new XAttr(NAME, service.getName()), + new XAttr(PROMOTE, promote), policyProcessor + .writePolicies(service)); + + // Write service interface + extensionProcessor.write(service.getInterfaceContract(), writer); + + // Write bindings + for (Binding binding : service.getBindings()) { + extensionProcessor.write(binding, writer); + } + + // Write <callback> element + if (service.getCallback() != null) { + Callback callback = service.getCallback(); + writeStart(writer, CALLBACK, policyProcessor + .writePolicies(callback)); + + // Write callback bindings + for (Binding binding : callback.getBindings()) { + extensionProcessor.write(binding, writer); + } + + // Write extensions + for (Object extension : callback.getExtensions()) { + extensionProcessor.write(extension, writer); + } + + writeEnd(writer); + } + + // Write extensions + for (Object extension : service.getExtensions()) { + extensionProcessor.write(extension, writer); + } + + writeEnd(writer); + } + + // Write <component> elements + for (Component component : composite.getComponents()) { + writeStart(writer, COMPONENT, new XAttr(NAME, component.getName()), + new XAttr(URI, component.getURI()), new XAttr(AUTOWIRE, + component.getAutowire()), policyProcessor + .writePolicies(component)); + + // Write <service> elements + for (ComponentService service : component.getServices()) { + writeStart(writer, SERVICE, new XAttr(NAME, service.getName()), + policyProcessor.writePolicies(service)); + + // Write service interface + extensionProcessor + .write(service.getInterfaceContract(), writer); + + // Write bindings + for (Binding binding : service.getBindings()) { + extensionProcessor.write(binding, writer); + } + + // Write <callback> element + if (service.getCallback() != null) { + Callback callback = service.getCallback(); + writeStart(writer, CALLBACK, policyProcessor + .writePolicies(callback)); + + // Write bindings + for (Binding binding : callback.getBindings()) { + extensionProcessor.write(binding, writer); + } + + // Write extensions + for (Object extension : callback.getExtensions()) { + extensionProcessor.write(extension, writer); + } + + writeEnd(writer); + } + + // Write extensions + for (Object extension : service.getExtensions()) { + extensionProcessor.write(extension, writer); + } + + writeEnd(writer); + } + + // Write <reference> elements + for (ComponentReference reference : component.getReferences()) { + writeStart(writer, REFERENCE, new XAttr(NAME, reference + .getName()), new XAttr(AUTOWIRE, reference + .getAutowire()), writeTargets(reference), + policyProcessor.writePolicies(reference)); + + // Write reference interface + extensionProcessor.write(reference.getInterfaceContract(), + writer); + + // Write bindings + for (Binding binding : reference.getBindings()) { + extensionProcessor.write(binding, writer); + } + + // Write callback + if (reference.getCallback() != null) { + Callback callback = reference.getCallback(); + writeStart(writer, CALLBACK, policyProcessor + .writePolicies(callback)); + + // Write callback bindings + for (Binding binding : callback.getBindings()) { + extensionProcessor.write(binding, writer); + } + + // Write extensions + for (Object extensions : callback.getExtensions()) { + extensionProcessor.write(extensions, writer); + } + + writeEnd(writer); + } + + // Write extensions + for (Object extensions : reference.getExtensions()) { + extensionProcessor.write(extensions, writer); + } + + writeEnd(writer); + } + + // Write <property> elements + for (ComponentProperty property : component.getProperties()) { + writeStart(writer, PROPERTY, + new XAttr(NAME, property.getName()), new XAttr( + MUST_SUPPLY, property.isMustSupply()), + new XAttr(MANY, property.isMany()), new XAttr(TYPE, + property.getXSDType()), new XAttr(ELEMENT, + property.getXSDElement()), new XAttr(SOURCE, + property.getSource()), new XAttr(FILE, property + .getFile()), policyProcessor + .writePolicies(property)); + + // Write property value + writePropertyValue(property.getValue(), property + .getXSDElement(), property.getXSDType(), writer); + + // Write extensions + for (Object extension : property.getExtensions()) { + extensionProcessor.write(extension, writer); + } + + writeEnd(writer); + } + + // Write the component implementation + Implementation implementation = component.getImplementation(); + if (implementation instanceof Composite) { + writeStart(writer, IMPLEMENTATION_COMPOSITE, new XAttr(NAME, + composite.getName())); + writeEnd(writer); + } else { + extensionProcessor.write(component.getImplementation(), writer); + } + + writeEnd(writer); + } + + // Write <reference> elements + for (Reference reference : composite.getReferences()) { + CompositeReference compositeReference = (CompositeReference) reference; + + // Write list of promoted references + List<String> promote = new ArrayList<String>(); + for (ComponentReference promoted : compositeReference + .getPromotedReferences()) { + promote.add(promoted.getName()); + } + + // Write <reference> element + writeStart(writer, REFERENCE, new XAttr(NAME, reference.getName()), + new XAttr(PROMOTE, promote), policyProcessor + .writePolicies(reference)); + + // Write reference interface + extensionProcessor.write(reference.getInterfaceContract(), writer); + + // Write bindings + for (Binding binding : reference.getBindings()) { + extensionProcessor.write(binding, writer); + } + + // Write <callback> element + if (reference.getCallback() != null) { + Callback callback = reference.getCallback(); + writeStart(writer, CALLBACK); + + // Write callback bindings + for (Binding binding : callback.getBindings()) { + extensionProcessor.write(binding, writer); + } + + // Write extensions + for (Object extension : callback.getExtensions()) { + extensionProcessor.write(extension, writer); + } + + writeEnd(writer); + } + + // Write extensions + for (Object extension : reference.getExtensions()) { + extensionProcessor.write(extension, writer); + } + + writeEnd(writer); + } + + // Write <property> elements + for (Property property : composite.getProperties()) { + writeStart(writer, PROPERTY, new XAttr(NAME, property.getName()), + new XAttr(MUST_SUPPLY, property.isMustSupply()), new XAttr( + MANY, property.isMany()), new XAttr(TYPE, property + .getXSDType()), new XAttr(ELEMENT, property + .getXSDElement()), policyProcessor + .writePolicies(property)); + + // Write property value + writePropertyValue(property.getValue(), property.getXSDElement(), + property.getXSDType(), writer); + + // Write extensions + for (Object extension : property.getExtensions()) { + extensionProcessor.write(extension, writer); + } + + writeEnd(writer); + } + + // Write <wire> elements + for (Wire wire : composite.getWires()) { + writeStart(writer, WIRE, new XAttr(SOURCE, wire.getSource() + .getName()), new XAttr(TARGET, wire.getTarget().getName())); + + // Write extensions + for (Object extension : wire.getExtensions()) { + extensionProcessor.write(extension, writer); + } + writeEnd(writer); + } + + for (Object extension : composite.getExtensions()) { + extensionProcessor.write(extension, writer); + } + + writeEndDocument(writer); + } + + public void resolve(Composite composite, ModelResolver resolver) + throws ContributionResolveException, PolicyValidationException { + + // Resolve constraining type + ConstrainingType constrainingType = composite.getConstrainingType(); + if (constrainingType != null) { + constrainingType = resolver.resolveModel(ConstrainingType.class, + constrainingType); + composite.setConstrainingType(constrainingType); + } + + // Resolve includes in the composite + for (int i = 0, n = composite.getIncludes().size(); i < n; i++) { + Composite include = composite.getIncludes().get(i); + if (include != null) { + include = resolver.resolveModel(Composite.class, include); + composite.getIncludes().set(i, include); + } + } + + // Resolve extensions + for (Object extension : composite.getExtensions()) { + if (extension != null) { + extensionProcessor.resolve(extension, resolver); + } + } + + // Resolve component implementations, services and references + for (Component component : composite.getComponents()) { + constrainingType = component.getConstrainingType(); + if (constrainingType != null) { + constrainingType = resolver.resolveModel( + ConstrainingType.class, constrainingType); + component.setConstrainingType(constrainingType); + } + + Implementation implementation = component.getImplementation(); + if (implementation != null) { + implementation = resolveImplementation(implementation, resolver); + component.setImplementation(implementation); + } + + for (ComponentProperty componentProperty : component + .getProperties()) { + if (componentProperty.getFile() != null) { + DeployedArtifact deployedArtifact = contributionFactory + .createDeployedArtifact(); + deployedArtifact.setURI(componentProperty.getFile()); + deployedArtifact = resolver.resolveModel( + DeployedArtifact.class, deployedArtifact); + if (deployedArtifact.getLocation() != null) { + componentProperty.setFile(deployedArtifact + .getLocation()); + } + } + } + resolveIntents(component.getRequiredIntents(), resolver); + resolvePolicySets(component.getPolicySets(), resolver); + resolveContracts(component.getServices(), resolver); + resolveContracts(component.getReferences(), resolver); + } + + // Resolve composite services and references + resolveContracts(composite.getServices(), resolver); + resolveContracts(composite.getReferences(), resolver); + if (composite instanceof PolicySetAttachPoint) { + resolveIntents(((PolicySetAttachPoint) composite) + .getRequiredIntents(), resolver); + resolvePolicySets(((PolicySetAttachPoint) composite) + .getPolicySets(), resolver); + } + } + + public void write(Component model, XMLStreamWriter writer) + throws ContributionWriteException, XMLStreamException { + write(this.composite, writer); + + } + + public void resolve(Component component, ModelResolver resolver) + throws ContributionResolveException { + // Resolve component implementations, services and references + ConstrainingType constrainingType = component.getConstrainingType(); + if (constrainingType != null) { + constrainingType = resolver.resolveModel(ConstrainingType.class, + constrainingType); + component.setConstrainingType(constrainingType); + } + + Implementation implementation = component.getImplementation(); + if (implementation != null) { + implementation = resolveImplementation(implementation, resolver); + component.setImplementation(implementation); + } + + for (ComponentProperty componentProperty : component.getProperties()) { + if (componentProperty.getFile() != null) { + DeployedArtifact deployedArtifact = contributionFactory + .createDeployedArtifact(); + deployedArtifact.setURI(componentProperty.getFile()); + deployedArtifact = resolver.resolveModel( + DeployedArtifact.class, deployedArtifact); + if (deployedArtifact.getLocation() != null) { + componentProperty.setFile(deployedArtifact.getLocation()); + } + } + } + resolveIntents(component.getRequiredIntents(), resolver); + resolvePolicySets(component.getPolicySets(), resolver); + resolveContracts(component.getServices(), resolver); + resolveContracts(component.getReferences(), resolver); + } + + public void resolveReference(ComponentReference reference, + ModelResolver resolver) throws ContributionResolveException { + resolveIntents(reference.getRequiredIntents(), resolver); + resolvePolicySets(reference.getPolicySets(), resolver); + List<ComponentReference> contracts = new ArrayList<ComponentReference>(); + contracts.add(reference); + resolveContracts(contracts, resolver); + } + + public QName getArtifactType() { + return COMPONENT_QNAME; + } + + public Class<Component> getModelType() { + + return Component.class; + } + +} |