diff options
Diffstat (limited to 'branches/sca-java-1.4/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeProcessor.java')
-rw-r--r-- | branches/sca-java-1.4/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeProcessor.java | 1233 |
1 files changed, 1233 insertions, 0 deletions
diff --git a/branches/sca-java-1.4/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeProcessor.java b/branches/sca-java-1.4/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeProcessor.java new file mode 100644 index 0000000000..285bcc448d --- /dev/null +++ b/branches/sca-java-1.4/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/CompositeProcessor.java @@ -0,0 +1,1233 @@ +/* + * 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.Iterator; +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 javax.xml.xpath.XPath; +import javax.xml.xpath.XPathExpressionException; +import javax.xml.xpath.XPathFactory; + +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.ConfiguredOperation; +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.OperationsConfigurator; +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.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.processor.StAXAttributeProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.resolver.ResolverExtension; +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.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.monitor.MonitorFactory; +import org.apache.tuscany.sca.policy.Intent; +import org.apache.tuscany.sca.policy.IntentAttachPointType; +import org.apache.tuscany.sca.policy.PolicyFactory; +import org.apache.tuscany.sca.policy.PolicySet; +import org.apache.tuscany.sca.policy.PolicySetAttachPoint; +import org.apache.tuscany.sca.policy.util.PolicyComputationUtils; +import org.apache.tuscany.sca.policy.util.PolicyValidationException; +import org.apache.tuscany.sca.policy.util.PolicyValidationUtils; +import org.w3c.dom.Document; + +/** + * A composite processor. + * + * @version $Rev$ $Date$ + */ +public class CompositeProcessor extends BaseAssemblyProcessor implements StAXArtifactProcessor<Composite> { + // FIXME: to be refactored + private XPathFactory xPathFactory = XPathFactory.newInstance(); + + protected StAXAttributeProcessor<Object> extensionAttributeProcessor; + + /** + * Construct a new composite processor + * + * @param extensionPoints + * @param extensionProcessor + */ + public CompositeProcessor(ExtensionPointRegistry extensionPoints, + StAXArtifactProcessor extensionProcessor, + StAXAttributeProcessor extensionAttributeProcessor, + Monitor monitor) { + + this(modelFactories(extensionPoints), + extensionProcessor, + extensionAttributeProcessor, + monitor(extensionPoints)); + + this.extensionAttributeProcessor = extensionAttributeProcessor; + } + + /** + * Constructs a new composite processor + * + * @param modelFactories + * @param extensionProcessor + * @param monitor + */ + private CompositeProcessor(ModelFactoryExtensionPoint modelFactories, + StAXArtifactProcessor extensionProcessor, + StAXAttributeProcessor extensionAttributeProcessor, + Monitor monitor) { + + super(modelFactories.getFactory(ContributionFactory.class), + modelFactories.getFactory(AssemblyFactory.class), + modelFactories.getFactory(PolicyFactory.class), + extensionProcessor, + monitor); + + this.extensionAttributeProcessor = extensionAttributeProcessor; + + } + + /** + * Construct a new composite processor + * + * @param contributionFactory + * @param assemblyFactory + * @param policyFactory + * @param extensionProcessor + */ + public CompositeProcessor(ContributionFactory contributionFactory, + AssemblyFactory assemblyFactory, + PolicyFactory policyFactory, + StAXArtifactProcessor extensionProcessor, + StAXAttributeProcessor extensionAttributeProcessor, + Monitor monitor) { + super(contributionFactory, assemblyFactory, policyFactory, extensionProcessor, monitor); + } + + public Composite read(XMLStreamReader reader) throws ContributionReadException { + Composite composite = null; + 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; + + try { + // Read the composite document + while (reader.hasNext()) { + int event = reader.getEventType(); + switch (event) { + case START_ELEMENT: + name = reader.getName(); + + if (COMPOSITE_QNAME.equals(name)) { + + // Read a <composite> + composite = assemblyFactory.createComposite(); + + composite.setName(new QName(getString(reader, TARGET_NAMESPACE), getString(reader, NAME))); + + if(!isSet(reader, TARGET_NAMESPACE)){ + // spec says that a composite must have a namespace + warning("NoCompositeNamespace", composite, composite.getName().toString()); + } + + if(isSet(reader, AUTOWIRE)) { + composite.setAutowire(getBoolean(reader, AUTOWIRE)); + } + + //handle extension attributes + this.readExtendedAttributes(reader, name, composite, extensionAttributeProcessor); + + composite.setLocal(getBoolean(reader, LOCAL)); + composite.setConstrainingType(readConstrainingType(reader)); + policyProcessor.readPolicies(composite, reader); + + } else if (INCLUDE_QNAME.equals(name)) { + + // Read an <include> + include = assemblyFactory.createComposite(); + include.setName(getQName(reader, NAME)); + include.setURI(getString(reader, URI)); + include.setUnresolved(true); + composite.getIncludes().add(include); + + } else if (SERVICE_QNAME.equals(name)) { + if (component != null) { + + // Read a <component><service> + componentService = assemblyFactory.createComponentService(); + contract = componentService; + componentService.setName(getString(reader, NAME)); + + //handle extension attributes + this.readExtendedAttributes(reader, name, componentService, extensionAttributeProcessor); + + component.getServices().add(componentService); + policyProcessor.readPolicies(contract, reader); + } else { + + // Read a <composite><service> + compositeService = assemblyFactory.createCompositeService(); + contract = compositeService; + compositeService.setName(getString(reader, NAME)); + + String promoted = getString(reader, PROMOTE); + if (promoted != null) { + String promotedComponentName; + String promotedServiceName; + int s = promoted.indexOf('/'); + if (s == -1) { + promotedComponentName = promoted; + promotedServiceName = null; + } else { + promotedComponentName = promoted.substring(0, s); + promotedServiceName = promoted.substring(s + 1); + } + + Component promotedComponent = assemblyFactory.createComponent(); + promotedComponent.setUnresolved(true); + promotedComponent.setName(promotedComponentName); + compositeService.setPromotedComponent(promotedComponent); + + ComponentService promotedService = assemblyFactory.createComponentService(); + promotedService.setUnresolved(true); + promotedService.setName(promotedServiceName); + compositeService.setPromotedService(promotedService); + } + + //handle extension attributes + this.readExtendedAttributes(reader, name, compositeService, extensionAttributeProcessor); + + composite.getServices().add(compositeService); + 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)); + + //handle extension attributes + this.readExtendedAttributes(reader, name, componentReference, extensionAttributeProcessor); + + component.getReferences().add(componentReference); + policyProcessor.readPolicies(contract, reader); + } else { + // Read a <composite><reference> + compositeReference = assemblyFactory.createCompositeReference(); + contract = compositeReference; + compositeReference.setName(getString(reader, NAME)); + readMultiplicity(compositeReference, reader); + readTargets(compositeReference, reader); + String promote = reader.getAttributeValue(null, Constants.PROMOTE); + if (promote != null) { + for (StringTokenizer tokens = new StringTokenizer(promote); tokens.hasMoreTokens();) { + ComponentReference promotedReference = + assemblyFactory.createComponentReference(); + promotedReference.setUnresolved(true); + promotedReference.setName(tokens.nextToken()); + compositeReference.getPromotedReferences().add(promotedReference); + } + } + compositeReference.setWiredByImpl(getBoolean(reader, WIRED_BY_IMPL)); + + //handle extension attributes + this.readExtendedAttributes(reader, name, compositeReference, extensionAttributeProcessor); + + composite.getReferences().add(compositeReference); + policyProcessor.readPolicies(contract, reader); + } + + } else if (PROPERTY_QNAME.equals(name)) { + if (component != null) { + + // Read a <component><property> + componentProperty = assemblyFactory.createComponentProperty(); + property = componentProperty; + String source = getString(reader, SOURCE); + if(source!=null) { + source = source.trim(); + } + componentProperty.setSource(source); + if (source != null) { + // $<name>/... + if (source.charAt(0) == '$') { + int index = source.indexOf('/'); + if (index == -1) { + // Tolerating $prop + source = source + "/"; + index = source.length() - 1; + } + source = source.substring(index + 1); + if ("".equals(source)) { + source = "."; + } + } + XPath xpath = xPathFactory.newXPath(); + xpath.setNamespaceContext(reader.getNamespaceContext()); + try { + componentProperty.setSourceXPathExpression(xpath.compile(source)); + } catch (XPathExpressionException e) { + ContributionReadException ce = new ContributionReadException(e); + error("ContributionReadException", xpath, ce); + //throw ce; + } + } + componentProperty.setFile(getString(reader, FILE)); + + //handle extension attributes + this.readExtendedAttributes(reader, name, componentProperty, extensionAttributeProcessor); + + 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 { + + // Read a <composite><property> + property = assemblyFactory.createProperty(); + policyProcessor.readPolicies(property, reader); + readAbstractProperty(property, reader); + + // Read the property value + Document value = readPropertyValue(property.getXSDElement(), property.getXSDType(), reader); + property.setValue(value); + + composite.getProperties().add(property); + } + + // TUSCANY-1949 + // If the property doesn't have a value, the END_ELEMENT event is read by the readPropertyValue + if (reader.getEventType() == END_ELEMENT && PROPERTY_QNAME.equals(reader.getName())) { + property = null; + componentProperty = null; + } + + } 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)); + } + + //handle extension attributes + this.readExtendedAttributes(reader, name, component, extensionAttributeProcessor); + + 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); + + //handle extension attributes + this.readExtendedAttributes(reader, name, wire, extensionAttributeProcessor); + + composite.getWires().add(wire); + policyProcessor.readPolicies(wire, reader); + + } else if (CALLBACK_QNAME.equals(name)) { + + // Read a <callback> + callback = assemblyFactory.createCallback(); + contract.setCallback(callback); + + //handle extension attributes + this.readExtendedAttributes(reader, name, callback, extensionAttributeProcessor); + + policyProcessor.readPolicies(callback, reader); + + } else if (OPERATION_QNAME.equals(name)) { + + // Read an <operation> + ConfiguredOperation operation = assemblyFactory.createConfiguredOperation(); + operation.setName(getString(reader, NAME)); + operation.setUnresolved(true); + if (callback != null) { + policyProcessor.readPolicies(operation, reader); + } else { + policyProcessor.readPolicies(operation, reader); + } + + OperationsConfigurator opConfigurator = null; + if ( compositeService != null ) { + opConfigurator = compositeService; + } else if ( componentService != null ) { + opConfigurator = componentService; + } else if ( compositeReference != null ) { + opConfigurator = compositeReference; + } else if ( componentReference != null ) { + opConfigurator = componentReference; + } + + opConfigurator.getConfiguredOperations().add(operation); + } else if (IMPLEMENTATION_COMPOSITE_QNAME.equals(name)) { + + // Read an implementation.composite + Composite implementation = assemblyFactory.createComposite(); + implementation.setName(getQName(reader, NAME)); + implementation.setUnresolved(true); + + //handle extension attributes + this.readExtendedAttributes(reader, name, implementation, extensionAttributeProcessor); + + 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)) { + error("UnexpectedInterfaceElement", extension); + //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) { + if ( extension instanceof PolicySetAttachPoint ) { + IntentAttachPointType bindingType = intentAttachPointTypeFactory.createBindingType(); + bindingType.setName(name); + bindingType.setUnresolved(true); + ((PolicySetAttachPoint)extension).setType(bindingType); + } + // <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)) { + error("UnexpectedBindingElement", extension); + //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) { + if ( extension instanceof PolicySetAttachPoint ) { + IntentAttachPointType implType = intentAttachPointTypeFactory.createImplementationType(); + implType.setName(name); + implType.setUnresolved(true); + ((PolicySetAttachPoint)extension).setType(implType); + } + // <component><implementation> + if (component != null) { + component.setImplementation((Implementation)extension); + } else { + if (name.getNamespaceURI().equals(SCA10_NS)) { + error("UnexpectedImplementationElement", extension); + //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(); + } + } + } + catch (XMLStreamException e) { + ContributionReadException ex = new ContributionReadException(e); + error("XMLStreamException", reader, ex); + } + + return composite; + } + + 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(LOCAL, composite.isLocal() ? Boolean.TRUE : null), + new XAttr(AUTOWIRE, composite.getAutowire()), + policyProcessor.writePolicies(composite)); + + //write extended attributes + this.writeExtendedAttributes(writer, composite, extensionAttributeProcessor); + + // Write <include> elements + for (Composite include : composite.getIncludes()) { + String uri = include.isUnresolved()? include.getURI() : null; + writeStart(writer, + INCLUDE, + new XAttr(NAME, include.getName()), + new XAttr(URI, uri)); + + //write extended attributes + this.writeExtendedAttributes(writer, include, extensionAttributeProcessor); + + writeEnd(writer); + } + + // 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.getName(); + } else { + promote = promotedComponent.getName(); + } + } else { + promote = null; + } + writeStart(writer, SERVICE, new XAttr(NAME, service.getName()), new XAttr(PROMOTE, promote), + policyProcessor.writePolicies(service)); + + //write extended attributes + this.writeExtendedAttributes(writer, service, extensionAttributeProcessor); + + + // 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 extended attributes + this.writeExtendedAttributes(writer, callback, extensionAttributeProcessor); + + // 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 extended attributes + this.writeExtendedAttributes(writer, component, extensionAttributeProcessor); + + // Write the component implementation + Implementation implementation = component.getImplementation(); + if (implementation instanceof Composite) { + writeStart(writer, IMPLEMENTATION_COMPOSITE, new XAttr(NAME, ((Composite)implementation).getName())); + + //write extended attributes + this.writeExtendedAttributes(writer, (Composite)implementation, extensionAttributeProcessor); + + writeEnd(writer); + } else { + extensionProcessor.write(component.getImplementation(), writer); + } + + for (Object extension : component.getExtensions()) { + extensionProcessor.write(extension, writer); + } + + // Write <service> elements + for (ComponentService service : component.getServices()) { + writeStart(writer, SERVICE, new XAttr(NAME, service.getName()), + policyProcessor.writePolicies(service)); + + //write extended attributes + this.writeExtendedAttributes(writer, service, extensionAttributeProcessor); + + // 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 extended attributes + this.writeExtendedAttributes(writer, callback, extensionAttributeProcessor); + + // 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()), + writeMultiplicity(reference), + writeTargets(reference), + policyProcessor.writePolicies(reference)); + + //write extended attributes + this.writeExtendedAttributes(writer, reference, extensionAttributeProcessor); + + // 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 extended attributes + this.writeExtendedAttributes(writer, callback, extensionAttributeProcessor); + + // 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 extended attributes + this.writeExtendedAttributes(writer, property, extensionAttributeProcessor); + + // Write property value + writePropertyValue(property.getValue(), property.getXSDElement(), property.getXSDType(), writer); + + // Write extensions + for (Object extension : property.getExtensions()) { + extensionProcessor.write(extension, writer); + } + + writeEnd(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), + writeMultiplicity(reference), + policyProcessor.writePolicies(reference)); + + //write extended attributes + this.writeExtendedAttributes(writer, reference, extensionAttributeProcessor); + + // 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 extended attributes + this.writeExtendedAttributes(writer, callback, extensionAttributeProcessor); + + // 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 extended attributes + this.writeExtendedAttributes(writer, property, extensionAttributeProcessor); + + // 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 extended attributes + this.writeExtendedAttributes(writer, wire, extensionAttributeProcessor); + + // 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 { + + // 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 intents and policy sets + List<Intent> compositeIntents = null; + List<PolicySet> compositePolicySets = null; + List<PolicySet> compositeApplicablePolicySets = null; + resolveIntents(composite.getRequiredIntents(), resolver); + resolvePolicySets(composite.getPolicySets(), resolver); + resolvePolicySets(composite.getApplicablePolicySets(), resolver); + compositeIntents = composite.getRequiredIntents(); + compositePolicySets = composite.getPolicySets(); + compositeApplicablePolicySets = composite.getApplicablePolicySets(); + + //Resolve composite services and references + resolveContracts(composite, composite.getServices(), resolver); + resolveContracts(composite, composite.getReferences(), 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); + } + + //resolve intents and policy sets + resolveIntents(component.getRequiredIntents(), resolver); + resolvePolicySets(component.getPolicySets(), resolver); + resolvePolicySets(component.getApplicablePolicySets(), resolver); + + //inherit composite intents and policysets + PolicyComputationUtils.addDefaultPolicies(compositeIntents, + compositePolicySets, + component.getRequiredIntents(), + component.getPolicySets()); + + addInheritedPolicySets(compositeApplicablePolicySets, component.getApplicablePolicySets()); + + //resolve component services and references + resolveContracts(component, component.getServices(), resolver); + resolveContracts(component, component.getReferences(), resolver); + + for (ComponentProperty componentProperty : component.getProperties()) { + if (componentProperty.getFile() != null) { + Artifact artifact = contributionFactory.createArtifact(); + artifact.setURI(componentProperty.getFile()); + artifact = resolver.resolveModel(Artifact.class, artifact); + if (artifact.getLocation() != null) { + componentProperty.setFile(artifact.getLocation()); + } + } + } + + //resolve component implementation + Implementation implementation = component.getImplementation(); + if (implementation != null) { + try { + //resolve intents and policysets specified on this implementation + //before copying them over to the component. Before that, from the component + //copy over the applicablePolicySets alone as it might have to be + //used to validate the policysets specified on the implementation + + resolveImplIntentsAndPolicySets(implementation, + component.getApplicablePolicySets(), + resolver); + + copyPoliciesToComponent(component, implementation, resolver, true); + + //now resolve the implementation so that even if there is a shared instance + //for this that is resolved, the specified intents and policysets are safe in the + //component and not lost + implementation = resolveImplementation(implementation, resolver); + + //resolved implementation may contain intents and policysets specified at + //componentType (either in the componentType side file or in annotations if its a + //java implementation). This has to be consolidated in to the component. + copyPoliciesToComponent(component, implementation, resolver, false); + + component.setImplementation(implementation); + } catch ( PolicyValidationException e ) { + error("PolicyImplValidationException", resolver, component.getName(), e.getMessage()); + //throw new ContributionResolveException("PolicyValidation exception when processing implementation of component '" + //+ component.getName() + "' due to " + e.getMessage(), e); + } + + } + + //add model resolver to component + if (component instanceof ResolverExtension) { + ((ResolverExtension)component).setModelResolver(resolver); + } + } + + // Add model resolver to promoted components + for (Service service : composite.getServices()) { + CompositeService compositeService = (CompositeService)service; + Component promotedComponent = compositeService.getPromotedComponent(); + if (promotedComponent instanceof ResolverExtension) { + ((ResolverExtension)promotedComponent).setModelResolver(resolver); + } + } + } + + private void resolveImplIntentsAndPolicySets(Implementation implementation, + List<PolicySet> inheritedApplicablePolicySets, + ModelResolver resolver) throws ContributionResolveException, + PolicyValidationException + { + if ( implementation instanceof PolicySetAttachPoint ) { + PolicySetAttachPoint policiedImpl = (PolicySetAttachPoint)implementation; + + policiedImpl.getApplicablePolicySets().addAll(inheritedApplicablePolicySets); + + resolveIntents(policiedImpl.getRequiredIntents(), resolver); + PolicyValidationUtils.validateIntents(policiedImpl, policiedImpl.getType()); + + resolvePolicySets(policiedImpl.getPolicySets(), resolver); + resolvePolicySets(policiedImpl.getApplicablePolicySets(), resolver); + + PolicyValidationUtils.validatePolicySets(policiedImpl); + + if ( implementation instanceof OperationsConfigurator ) { + for ( ConfiguredOperation implConfOp : ((OperationsConfigurator)implementation).getConfiguredOperations() ) { + resolveIntents(implConfOp.getRequiredIntents(), resolver); + PolicyValidationUtils.validateIntents(implConfOp, policiedImpl.getType()); + + resolvePolicySets(implConfOp.getPolicySets(), resolver); + resolvePolicySets(implConfOp.getApplicablePolicySets(), resolver); + //add the inherited applicablePolicysets + addInheritedPolicySets(policiedImpl.getApplicablePolicySets(), implConfOp.getApplicablePolicySets()); + + PolicyValidationUtils.validatePolicySets(implConfOp, policiedImpl.getType()); + + PolicyComputationUtils.addDefaultPolicies( + ((PolicySetAttachPoint)implementation).getRequiredIntents(), + ((PolicySetAttachPoint)implementation).getPolicySets(), + implConfOp.getRequiredIntents(), + implConfOp.getPolicySets()); + } + } + } + } + + private void copyPoliciesToComponent(Component component, + Implementation implementation, + ModelResolver resolver, + boolean clearImplSettings) throws ContributionResolveException { + if (implementation instanceof PolicySetAttachPoint) { + // Add implementation policies into component, since implementation instances are + // reused and it's likely that this implementation instance will not hold after its resolution. + // On the first call to this method (clearImplSettings=true), we are moving policies from the + // implementation XML element up to the component. In this case if there are mutually exclusive + // policies we must clear the component policy so that the implementation policy "wins". + // On the second call to this method (clearImplSettings=false), we are moving policies from the + // componentType implementation up to the component. In this case if there are mutually + // exclusive policies it is an error. This error will be detected later in the PolicyComputer. + if (clearImplSettings) { + for (Intent intent : ((PolicySetAttachPoint)implementation).getRequiredIntents()) { + for (Intent excluded : intent.getExcludedIntents()) { + if (component.getRequiredIntents().contains(excluded)) { + component.getRequiredIntents().remove(excluded); + } + for (Iterator i = component.getPolicySets().iterator(); i.hasNext(); ) { + PolicySet cmpPolicySet = (PolicySet) i.next(); + if (cmpPolicySet.getProvidedIntents().contains(excluded)) { + i.remove(); + } + } + } + } + for (PolicySet policySet : ((PolicySetAttachPoint)implementation).getPolicySets()) { + for (Intent intent : policySet.getProvidedIntents()) { + for (Intent excluded : intent.getExcludedIntents()) { + if (component.getRequiredIntents().contains(excluded)) { + component.getRequiredIntents().remove(excluded); + } + for (Iterator i = component.getPolicySets().iterator(); i.hasNext(); ) { + PolicySet cmpPolicySet = (PolicySet) i.next(); + if (cmpPolicySet.getProvidedIntents().contains(excluded)) { + i.remove(); + } + } + } + } + } + } + component.getRequiredIntents().addAll(((PolicySetAttachPoint)implementation).getRequiredIntents()); + component.getPolicySets().addAll(((PolicySetAttachPoint)implementation).getPolicySets()); + component.getApplicablePolicySets().addAll(((PolicySetAttachPoint)implementation).getApplicablePolicySets()); + + if ( implementation instanceof OperationsConfigurator ) { + boolean notFound; + List<ConfiguredOperation> opsFromImplementation = new ArrayList<ConfiguredOperation>(); + List<ConfiguredOperation> implConfOperations = + new ArrayList<ConfiguredOperation>(((OperationsConfigurator)implementation).getConfiguredOperations()); + for ( ConfiguredOperation implConfOp : implConfOperations ) { + notFound = true; + for ( ConfiguredOperation compConfOp : ((OperationsConfigurator)component).getConfiguredOperations() ) { + if ( implConfOp.getName().equals(compConfOp.getName()) ) { + notFound = false; + + if (clearImplSettings) { + for (Intent intent : implConfOp.getRequiredIntents()) { + for (Intent excluded : intent.getExcludedIntents()) { + if (compConfOp.getRequiredIntents().contains(excluded)) { + compConfOp.getRequiredIntents().remove(excluded); + } + } + } + for (PolicySet policySet : implConfOp.getPolicySets()) { + for (Intent intent : policySet.getProvidedIntents()) { + for (Intent excluded : intent.getExcludedIntents()) { + if (compConfOp.getRequiredIntents().contains(excluded)) { + compConfOp.getRequiredIntents().remove(excluded); + } + for (Iterator i = compConfOp.getPolicySets().iterator(); i.hasNext(); ) { + PolicySet cmpPolicySet = (PolicySet) i.next(); + if (cmpPolicySet.getProvidedIntents().contains(excluded)) { + i.remove(); + } + } + } + } + } + } + + addInheritedIntents(implConfOp.getRequiredIntents(), compConfOp.getRequiredIntents()); + addInheritedPolicySets(implConfOp.getPolicySets(), compConfOp.getPolicySets()); + addInheritedPolicySets(implConfOp.getApplicablePolicySets(), compConfOp.getApplicablePolicySets()); + } + } + + if ( notFound ) { + opsFromImplementation.add(implConfOp); + } + + if ( clearImplSettings ) { + ((OperationsConfigurator)implementation).getConfiguredOperations().remove(implConfOp); + } + } + ((OperationsConfigurator)component).getConfiguredOperations().addAll(opsFromImplementation); + } + + if ( clearImplSettings ) { + ((PolicySetAttachPoint)implementation).getRequiredIntents().clear(); + ((PolicySetAttachPoint)implementation).getPolicySets().clear(); + } + } + } + + + public QName getArtifactType() { + return COMPOSITE_QNAME; + } + + public Class<Composite> getModelType() { + return Composite.class; + } + + /** + * Returns the model factory extension point to use. + * + * @param extensionPoints + * @return + */ + private static ModelFactoryExtensionPoint modelFactories(ExtensionPointRegistry extensionPoints) { + return extensionPoints.getExtensionPoint(ModelFactoryExtensionPoint.class); + } + + /** + * Returns the monitor to use. + * + * @param extensionPoints + * @return + */ + private static Monitor monitor(ExtensionPointRegistry extensionPoints) { + UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class); + if (utilities != null) { + MonitorFactory monitorFactory = utilities.getUtility(MonitorFactory.class); + if (monitorFactory != null) { + return monitorFactory.createMonitor(); + } + } + return null; + } + +} |