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Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.6.2/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/BaseAssemblyProcessor.java')
| -rw-r--r-- | sca-java-1.x/branches/sca-java-1.6.2/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/BaseAssemblyProcessor.java | 915 |
1 files changed, 915 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.6.2/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/BaseAssemblyProcessor.java b/sca-java-1.x/branches/sca-java-1.6.2/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/BaseAssemblyProcessor.java new file mode 100644 index 0000000000..b76b755dc7 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.6.2/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/BaseAssemblyProcessor.java @@ -0,0 +1,915 @@ +/* + * 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.XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI; +import static javax.xml.XMLConstants.XMLNS_ATTRIBUTE_NS_URI; + +import java.util.ArrayList; +import java.util.List; +import java.util.StringTokenizer; + +import javax.xml.namespace.QName; +import javax.xml.parsers.DocumentBuilderFactory; +import javax.xml.parsers.ParserConfigurationException; +import javax.xml.stream.XMLInputFactory; +import javax.xml.stream.XMLStreamConstants; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamWriter; +import javax.xml.transform.dom.DOMSource; + +import org.apache.tuscany.sca.assembly.AbstractContract; +import org.apache.tuscany.sca.assembly.AbstractProperty; +import org.apache.tuscany.sca.assembly.AbstractReference; +import org.apache.tuscany.sca.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.Base; +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.assembly.Component; +import org.apache.tuscany.sca.assembly.ComponentService; +import org.apache.tuscany.sca.assembly.ComponentType; +import org.apache.tuscany.sca.assembly.Composite; +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.Extensible; +import org.apache.tuscany.sca.assembly.ExtensionFactory; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.assembly.Multiplicity; +import org.apache.tuscany.sca.assembly.OperationsConfigurator; +import org.apache.tuscany.sca.assembly.Reference; +import org.apache.tuscany.sca.assembly.Service; +import org.apache.tuscany.sca.contribution.ContributionFactory; +import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor; +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.service.ContributionReadException; +import org.apache.tuscany.sca.contribution.service.ContributionResolveException; +import org.apache.tuscany.sca.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.monitor.Problem; +import org.apache.tuscany.sca.monitor.Problem.Severity; +import org.apache.tuscany.sca.monitor.impl.ProblemImpl; +import org.apache.tuscany.sca.policy.Intent; +import org.apache.tuscany.sca.policy.IntentAttachPoint; +import org.apache.tuscany.sca.policy.IntentAttachPointType; +import org.apache.tuscany.sca.policy.IntentAttachPointTypeFactory; +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.impl.IntentAttachPointTypeFactoryImpl; +import org.apache.tuscany.sca.policy.util.PolicyValidationException; +import org.apache.tuscany.sca.policy.util.PolicyValidationUtils; +import org.w3c.dom.Document; +import org.w3c.dom.Element; +import org.w3c.dom.NamedNodeMap; +import org.w3c.dom.Node; +import org.w3c.dom.NodeList; + +/** + * A base class with utility methods for the other artifact processors in this module. + * + * @version $Rev$ $Date$ + */ +abstract class BaseAssemblyProcessor extends BaseStAXArtifactProcessor implements Constants { + + protected ContributionFactory contributionFactory; + protected AssemblyFactory assemblyFactory; + protected ExtensionFactory extensionFactory; + protected PolicyFactory policyFactory; + protected StAXArtifactProcessor<Object> extensionProcessor; + protected StAXAttributeProcessor<Object> extensionAttributeProcessor; + protected PolicyAttachPointProcessor policyProcessor; + private DocumentBuilderFactory documentBuilderFactory; + protected IntentAttachPointTypeFactory intentAttachPointTypeFactory; + private Monitor monitor; + + + /** + * Constructs a new BaseArtifactProcessor. + * @param contribFactory + * @param assemblyFactory + * @param extensionFactory + * @param policyFactory + * @param extensionProcessor + * @param monitor + */ + @SuppressWarnings("unchecked") + public BaseAssemblyProcessor(ContributionFactory contribFactory, + AssemblyFactory assemblyFactory, + ExtensionFactory extensionFactory, + PolicyFactory policyFactory, + StAXArtifactProcessor extensionProcessor, + StAXAttributeProcessor extensionAttributeProcessor, + Monitor monitor) { + this.contributionFactory = contribFactory; + this.assemblyFactory = assemblyFactory; + this.extensionFactory = extensionFactory; + this.policyFactory = policyFactory; + this.extensionProcessor = (StAXArtifactProcessor<Object>)extensionProcessor; + this.extensionAttributeProcessor = extensionAttributeProcessor; + this.policyProcessor = new PolicyAttachPointProcessor(policyFactory); + this.intentAttachPointTypeFactory = new IntentAttachPointTypeFactoryImpl(); + this.monitor = monitor; + } + + /** + * Constructs a new BaseArtifactProcessor. + * @param assemblyfactory + * @param extensionFactory + * @param policyFactory + * @param extensionProcessor + * @param monitor + */ + @SuppressWarnings("unchecked") + public BaseAssemblyProcessor(AssemblyFactory assemblyfactory, + ExtensionFactory extensionFactory, + PolicyFactory policyFactory, + StAXArtifactProcessor extensionProcessor, + StAXAttributeProcessor extensionAttributeProcessor, + Monitor monitor) { + this.assemblyFactory = assemblyfactory; + this.extensionFactory = extensionFactory; + this.policyFactory = policyFactory; + this.extensionProcessor = (StAXArtifactProcessor<Object>)extensionProcessor; + this.extensionAttributeProcessor = extensionAttributeProcessor; + this.policyProcessor = new PolicyAttachPointProcessor(policyFactory); + this.monitor = monitor; + } + + /** + * Marshals warnings into the monitor + * + * @param message + * @param model + * @param messageParameters + */ + protected void warning(String message, Object model, String... messageParameters) { + if (monitor != null){ + Problem problem = new ProblemImpl(this.getClass().getName(), "assembly-xml-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters); + monitor.problem(problem); + } + } + + /** + * Marshals errors into the monitor + * + * @param problems + * @param message + * @param model + */ + protected void error(String message, Object model, Object... messageParameters) { + if (monitor != null) { + Problem problem = new ProblemImpl(this.getClass().getName(), "assembly-xml-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters); + monitor.problem(problem); + } + } + + /** + * Marshals exceptions into the monitor + * + * @param problems + * @param message + * @param model + */ + protected void error(String message, Object model, Exception ex) { + if (monitor != null) { + Problem problem = new ProblemImpl(this.getClass().getName(), "assembly-xml-validation-messages", Severity.ERROR, model, message, ex); + monitor.problem(problem); + } + } + + /** + * Start an element. + * @param writer + * @param name + * @param attrs + * @throws XMLStreamException + */ + protected void writeStart(XMLStreamWriter writer, String name, XAttr... attrs) throws XMLStreamException { + writeStart(writer, SCA10_NS, name, attrs); + } + + /** + * Start a document. + * @param writer + * @throws XMLStreamException + */ + protected void writeStartDocument(XMLStreamWriter writer, String name, XAttr... attrs) throws XMLStreamException { + writer.writeStartDocument(); + writer.setDefaultNamespace(SCA10_NS); + writeStart(writer, SCA10_NS, name, attrs); + writer.writeDefaultNamespace(SCA10_NS); + } + + /** + * Read list of reference targets + * @param reference + * @param reader + */ + protected void readTargets(Reference reference, XMLStreamReader reader) { + String value = reader.getAttributeValue(null, TARGET); + ComponentService target = null; + if (value != null) { + for (StringTokenizer tokens = new StringTokenizer(value); tokens.hasMoreTokens();) { + target = assemblyFactory.createComponentService(); + target.setUnresolved(true); + target.setName(tokens.nextToken()); + reference.getTargets().add(target); + } + } + } + + /** + * Write a list of targets into an attribute + * @param reference + * @return + */ + protected XAttr writeTargets(Reference reference) { + List<String> targets = new ArrayList<String>(); + for (Service target : reference.getTargets()) { + targets.add(target.getName()); + } + return new XAttr(TARGET, targets); + } + + /** + * Read a multiplicity attribute. + * @param reference + * @param reader + */ + protected void readMultiplicity(AbstractReference reference, XMLStreamReader reader) { + String value = reader.getAttributeValue(null, MULTIPLICITY); + if (ZERO_ONE.equals(value)) { + reference.setMultiplicity(Multiplicity.ZERO_ONE); + } else if (ONE_N.equals(value)) { + reference.setMultiplicity(Multiplicity.ONE_N); + } else if (ZERO_N.equals(value)) { + reference.setMultiplicity(Multiplicity.ZERO_N); + } else if (ONE_ONE.equals(value)) { + reference.setMultiplicity(Multiplicity.ONE_ONE); + } + } + + protected XAttr writeMultiplicity(AbstractReference reference) { + Multiplicity multiplicity = reference.getMultiplicity(); + if (multiplicity != null) { + String value = null; + if (Multiplicity.ZERO_ONE.equals(multiplicity)) { + value = ZERO_ONE; + } else if (Multiplicity.ONE_N.equals(multiplicity)) { + value = ONE_N; + } else if (Multiplicity.ZERO_N.equals(multiplicity)) { + value = ZERO_N; + } else if (Multiplicity.ONE_ONE.equals(multiplicity)) { + value = ONE_ONE; + return null; + } + return new XAttr(MULTIPLICITY, value); + } + return null; + } + + /** + * Returns the value of a constrainingType attribute. + * @param reader + * @return + */ + protected ConstrainingType readConstrainingType(XMLStreamReader reader) { + QName constrainingTypeName = getQName(reader, Constants.CONSTRAINING_TYPE); + if (constrainingTypeName != null) { + ConstrainingType constrainingType = assemblyFactory.createConstrainingType(); + constrainingType.setName(constrainingTypeName); + constrainingType.setUnresolved(true); + return constrainingType; + } else { + return null; + } + } + + /** + * Reads an abstract property element. + * @param property + * @param reader + * @throws XMLStreamException + * @throws ContributionReadException + */ + protected void readAbstractProperty(AbstractProperty property, XMLStreamReader reader) throws XMLStreamException, + ContributionReadException { + + property.setName(getString(reader, NAME)); + property.setMany(getBoolean(reader, MANY)); + property.setMustSupply(getBoolean(reader, MUST_SUPPLY)); + property.setXSDElement(getQName(reader, ELEMENT)); + property.setXSDType(getQName(reader, TYPE)); + } + + /** + * Resolve an implementation. + * @param implementation + * @param resolver + * @return + * @throws ContributionResolveException + */ + protected Implementation resolveImplementation(Implementation implementation, ModelResolver resolver) + throws ContributionResolveException, PolicyValidationException { + if (implementation != null) { + if (implementation.isUnresolved()) { + implementation = resolver.resolveModel(Implementation.class, implementation); + + // Lazily resolve implementations + if (implementation.isUnresolved()) { + extensionProcessor.resolve(implementation, resolver); + if (!implementation.isUnresolved()) { + //resolve policies + if ( implementation instanceof PolicySetAttachPoint ) { + PolicySetAttachPoint policiedImpl = (PolicySetAttachPoint)implementation; + resolveIntents(policiedImpl.getRequiredIntents(), resolver); + PolicyValidationUtils.validateIntents(policiedImpl, policiedImpl.getType()); + + resolvePolicySets(policiedImpl.getPolicySets(), resolver); + PolicyValidationUtils.validatePolicySets(policiedImpl); + + if ( implementation instanceof OperationsConfigurator ) { + OperationsConfigurator opsConfigurator = (OperationsConfigurator)implementation; + for ( ConfiguredOperation implOp : opsConfigurator.getConfiguredOperations() ) { + resolveIntents(implOp.getRequiredIntents(), resolver); + PolicyValidationUtils.validateIntents(implOp, policiedImpl.getType()); + + resolvePolicySets(implOp.getPolicySets(), resolver); + PolicyValidationUtils.validatePolicySets(implOp, + policiedImpl.getType(), + policiedImpl.getApplicablePolicySets()); + } + } + + for ( Service service : implementation.getServices() ) { + resolveIntents(service.getRequiredIntents(), resolver); + resolvePolicySets(service.getPolicySets(), resolver); + + for ( ConfiguredOperation svcOp : service.getConfiguredOperations() ) { + resolveIntents(svcOp.getRequiredIntents(), resolver); + resolvePolicySets(svcOp.getPolicySets(), resolver); + } + } + + for ( Reference reference : implementation.getReferences() ) { + resolveIntents(reference.getRequiredIntents(), resolver); + resolvePolicySets(reference.getPolicySets(), resolver); + } + } + + resolver.addModel(implementation); + } + } + } + + if ( implementation instanceof IntentAttachPoint && + ((IntentAttachPoint)implementation).getType() != null && + ((IntentAttachPoint)implementation).getType().isUnresolved() ) { + ((IntentAttachPoint)implementation).setType( + resolver.resolveModel(IntentAttachPointType.class, + ((IntentAttachPoint)implementation).getType())); + } + } + return implementation; + } + + /** + * Resolve interface, callback interface and bindings on a list of contracts. + * @param contracts the list of contracts + * @param resolver the resolver to use to resolve models + */ + protected <C extends Contract> void resolveContracts(List<C> contracts, ModelResolver resolver) + throws ContributionResolveException { + resolveContracts(null, contracts, resolver); + } + + + /** + * Resolve interface, callback interface and bindings on a list of contracts. + * @param parent element for the contracts + * @param contracts the list of contracts + * @param resolver the resolver to use to resolve models + */ + protected <C extends Contract> void resolveContracts(Base parent, List<C> contracts, ModelResolver resolver) + throws ContributionResolveException { + + String parentName = (parent instanceof Composite) ? ((Composite)parent).getName().toString() : + (parent instanceof Component) ? ((Component)parent).getName() : "UNKNOWN"; + + for (Contract contract : contracts) { + try { + //resolve the intents and policysets as they need to be copied over into the + //child binding elements + resolveIntents(contract.getRequiredIntents(), resolver); + resolvePolicySets(contract.getPolicySets(), resolver); + resolvePolicySets(contract.getApplicablePolicySets(), resolver); + + // Inherit the composite / component level applicable policy sets. + if ( parent != null && parent instanceof PolicySetAttachPoint ) { + addInheritedPolicySets(((PolicySetAttachPoint)parent).getApplicablePolicySets(), contract.getApplicablePolicySets()); + } + + for ( ConfiguredOperation confOp : contract.getConfiguredOperations() ) { + resolveIntents(confOp.getRequiredIntents(), resolver); + resolvePolicySets(confOp.getPolicySets(), resolver); + resolvePolicySets(confOp.getApplicablePolicySets(), resolver); + + //inherit applicable policy sets from parent contract + addInheritedPolicySets(contract.getApplicablePolicySets(), confOp.getApplicablePolicySets()); + } + + // Resolve the interface contract + InterfaceContract interfaceContract = contract.getInterfaceContract(); + if (interfaceContract != null) { + extensionProcessor.resolve(interfaceContract, resolver); + } + + // Resolve bindings + for (int i = 0, n = contract.getBindings().size(); i < n; i++) { + Binding binding = contract.getBindings().get(i); + extensionProcessor.resolve(binding, resolver); + + if (binding instanceof IntentAttachPoint) { + IntentAttachPoint policiedBinding = (IntentAttachPoint)binding; + + if ( policiedBinding.getType() != null && policiedBinding.getType().isUnresolved() ) { + IntentAttachPointType resolved = + resolver.resolveModel(IntentAttachPointType.class, + policiedBinding.getType()); + policiedBinding.setType(resolved); + } + + resolveIntents(policiedBinding.getRequiredIntents(), resolver); + PolicyValidationUtils.validateIntents(policiedBinding, policiedBinding.getType()); + } + + if (binding instanceof PolicySetAttachPoint) { + PolicySetAttachPoint policiedBinding = (PolicySetAttachPoint)binding; + resolvePolicySets(policiedBinding.getPolicySets(), resolver); + //validate if attached policysets apply to the binding + resolvePolicySets(policiedBinding.getApplicablePolicySets(), resolver); + //inherit the applicable policysets from parent contract as whatever applies to that + //applies to the binding as well + addInheritedPolicySets(contract.getApplicablePolicySets(), policiedBinding.getApplicablePolicySets()); + PolicyValidationUtils.validatePolicySets(policiedBinding); + } + + if (binding instanceof OperationsConfigurator) { + OperationsConfigurator opConfigurator = (OperationsConfigurator)binding; + for (ConfiguredOperation confOp : opConfigurator.getConfiguredOperations()) { + resolveIntents(confOp.getRequiredIntents(), resolver); + PolicyValidationUtils.validateIntents(confOp, ((PolicySetAttachPoint)binding).getType()); + + resolvePolicySets(confOp.getPolicySets(), resolver); + resolvePolicySets(confOp.getApplicablePolicySets(), resolver); + //inherit the applicable policysets from parent binding as whatever applies to that + //applies to the binding as well + addInheritedPolicySets(((PolicySetAttachPoint)binding).getApplicablePolicySets(), + confOp.getApplicablePolicySets()); + PolicyValidationUtils.validatePolicySets(confOp, ((PolicySetAttachPoint)binding).getType()); + } + } + } + + // Resolve callback bindings + if (contract.getCallback() != null) { + resolveIntents(contract.getCallback().getRequiredIntents(), resolver); + resolvePolicySets(contract.getCallback().getPolicySets(), resolver); + resolvePolicySets(contract.getCallback().getApplicablePolicySets(), resolver); + //inherit the contract's policy intents and policysets + addInheritedPolicySets(contract.getApplicablePolicySets(), contract.getCallback().getApplicablePolicySets()); + + for (int i = 0, n = contract.getCallback().getBindings().size(); i < n; i++) { + Binding binding = contract.getCallback().getBindings().get(i); + extensionProcessor.resolve(binding, resolver); + + if (binding instanceof IntentAttachPoint) { + IntentAttachPoint policiedBinding = (IntentAttachPoint)binding; + + if ( policiedBinding.getType().isUnresolved() ) { + IntentAttachPointType resolved = + resolver.resolveModel(IntentAttachPointType.class, + policiedBinding.getType()); + policiedBinding.setType(resolved); + } + + resolveIntents(policiedBinding.getRequiredIntents(), resolver); + PolicyValidationUtils.validateIntents(policiedBinding, policiedBinding.getType()); + } + + if (binding instanceof PolicySetAttachPoint) { + PolicySetAttachPoint policiedBinding = (PolicySetAttachPoint)binding; + resolvePolicySets(policiedBinding.getPolicySets(), resolver); + //validate if attached policysets apply to the binding + resolvePolicySets(policiedBinding.getApplicablePolicySets(), resolver); + //inherit the applicable policysets from parent contract as whatever applies to that + //applies to the binding as well + addInheritedPolicySets(contract.getApplicablePolicySets(), policiedBinding.getApplicablePolicySets()); + PolicyValidationUtils.validatePolicySets(policiedBinding); + } + + if (binding instanceof OperationsConfigurator) { + OperationsConfigurator opConfigurator = (OperationsConfigurator)binding; + for (ConfiguredOperation confOp : opConfigurator.getConfiguredOperations()) { + resolveIntents(confOp.getRequiredIntents(), resolver); + PolicyValidationUtils.validateIntents(confOp, ((PolicySetAttachPoint)binding).getType()); + + resolvePolicySets(confOp.getPolicySets(), resolver); + resolvePolicySets(confOp.getApplicablePolicySets(), resolver); + //inherit the applicable policysets from parent binding as whatever applies to that + //applies to the binding as well + addInheritedPolicySets(((PolicySetAttachPoint)binding).getApplicablePolicySets(), + confOp.getApplicablePolicySets()); + PolicyValidationUtils.validatePolicySets(confOp, ((PolicySetAttachPoint)binding).getType()); + } + } + } + } + } catch ( PolicyValidationException e ) { + error("PolicyServiceValidationException", contract, contract.getName(), parentName, e.getMessage()); + //throw new ContributionResolveException("PolicyValidation exceptions when processing service/reference '" + //+ contract.getName() + "' in '" + parentName + "'"); + } + } + } + + /** + * Resolve interface and callback interface on a list of abstract contracts. + * @param contracts the list of contracts + * @param resolver the resolver to use to resolve models + */ + protected <C extends AbstractContract> void resolveAbstractContracts(List<C> contracts, ModelResolver resolver) + throws ContributionResolveException { + for (AbstractContract contract : contracts) { + + // Resolve the interface contract + InterfaceContract interfaceContract = contract.getInterfaceContract(); + if (interfaceContract != null) { + extensionProcessor.resolve(interfaceContract, resolver); + } + } + } + + /** + * Returns a constrainingType attribute. + * @param componentType + * @return + */ + protected XAttr writeConstrainingType(ComponentType componentType) { + ConstrainingType constrainingType = componentType.getConstrainingType(); + if (constrainingType != null) + return new XAttr(Constants.CONSTRAINING_TYPE, constrainingType.getName()); + else + return null; + } + + /** + * Read a property value into a DOM document. + * @param element + * @param type + * @param reader + * @return + * @throws XMLStreamException + * @throws ContributionReadException + * @throws ParserConfigurationException + */ + protected Document readPropertyValue(QName element, QName type, XMLStreamReader reader) throws XMLStreamException, + ContributionReadException { + + Document document; + try { + if (documentBuilderFactory == null) { + documentBuilderFactory = DocumentBuilderFactory.newInstance(); + documentBuilderFactory.setNamespaceAware(true); + } + document = documentBuilderFactory.newDocumentBuilder().newDocument(); + } catch (ParserConfigurationException e) { + ContributionReadException ce = new ContributionReadException(e); + error("ContributionReadException", documentBuilderFactory, ce); + throw ce; + } + + // root element has no namespace and local name "value" + Element root = document.createElementNS(null, "value"); + if (type != null) { + org.w3c.dom.Attr xsi = document.createAttributeNS(XMLNS_ATTRIBUTE_NS_URI, "xmlns:xsi"); + xsi.setValue(W3C_XML_SCHEMA_INSTANCE_NS_URI); + root.setAttributeNodeNS(xsi); + + String prefix = type.getPrefix(); + if (prefix == null || prefix.length() == 0) { + prefix = "ns"; + } + + declareNamespace(root, prefix, type.getNamespaceURI()); + + org.w3c.dom.Attr xsiType = document.createAttributeNS(W3C_XML_SCHEMA_INSTANCE_NS_URI, "xsi:type"); + xsiType.setValue(prefix + ":" + type.getLocalPart()); + root.setAttributeNodeNS(xsiType); + } + document.appendChild(root); + + loadElement(reader, root); + return document; + } + + /** + * Create a DOM element + * @param document + * @param name + * @return + */ + private Element createElement(Document document, QName name) { + String prefix = name.getPrefix(); + String qname = + (prefix != null && prefix.length() > 0) ? prefix + ":" + name.getLocalPart() : name.getLocalPart(); + return document.createElementNS(name.getNamespaceURI(), qname); + } + + /** + * Declare a namespace. + * @param element + * @param prefix + * @param ns + */ + private void declareNamespace(Element element, String prefix, String ns) { + if (ns == null) { + ns = ""; + } + if (prefix == null) { + prefix = ""; + } + String qname = null; + if ("".equals(prefix)) { + qname = "xmlns"; + } else { + qname = "xmlns:" + prefix; + } + Node node = element; + boolean declared = false; + while (node != null && node.getNodeType() == Node.ELEMENT_NODE) { + NamedNodeMap attrs = node.getAttributes(); + if (attrs == null) { + break; + } + Node attr = attrs.getNamedItem(qname); + if (attr != null) { + declared = ns.equals(attr.getNodeValue()); + break; + } + node = node.getParentNode(); + } + if (!declared) { + org.w3c.dom.Attr attr = element.getOwnerDocument().createAttributeNS(XMLNS_ATTRIBUTE_NS_URI, qname); + attr.setValue(ns); + element.setAttributeNodeNS(attr); + } + } + + /** + * Load a property value specification from an StAX stream into a DOM + * Document. Only elements, text and attributes are processed; all comments + * and other whitespace are ignored. + * + * @param reader the stream to read from + * @param root the DOM node to load + * @throws javax.xml.stream.XMLStreamException + */ + private void loadElement(XMLStreamReader reader, Element root) throws XMLStreamException { + Document document = root.getOwnerDocument(); + Node current = root; + while (true) { + switch (reader.next()) { + case XMLStreamConstants.START_ELEMENT: + QName name = reader.getName(); + Element child = createElement(document, name); + + // push the new element and make it the current one + current.appendChild(child); + current = child; + + int count = reader.getNamespaceCount(); + for (int i = 0; i < count; i++) { + String prefix = reader.getNamespacePrefix(i); + String ns = reader.getNamespaceURI(i); + declareNamespace(child, prefix, ns); + } + + if (!"".equals(name.getNamespaceURI())) { + declareNamespace(child, name.getPrefix(), name.getNamespaceURI()); + } + + // add the attributes for this element + count = reader.getAttributeCount(); + for (int i = 0; i < count; i++) { + String ns = reader.getAttributeNamespace(i); + String prefix = reader.getAttributePrefix(i); + String qname = reader.getAttributeLocalName(i); + String value = reader.getAttributeValue(i); + if (prefix != null && prefix.length() != 0) { + qname = prefix + ":" + qname; + } + child.setAttributeNS(ns, qname, value); + if (ns != null) { + declareNamespace(child, prefix, ns); + } + } + + break; + case XMLStreamConstants.CDATA: + current.appendChild(document.createCDATASection(reader.getText())); + break; + case XMLStreamConstants.CHARACTERS: + current.appendChild(document.createTextNode(reader.getText())); + break; + case XMLStreamConstants.END_ELEMENT: + // if we are back at the root then we are done + if (current == root) { + return; + } + + // pop the element off the stack + current = current.getParentNode(); + } + } + } + + /** + * Resolve policy intents attached to a specific SCA Artifact + * @param policyIntents list of policy intents + * @param resolver + */ + protected void resolveIntents(List<Intent> policyIntents, ModelResolver resolver) { + List<Intent> requiredIntents = new ArrayList<Intent>(); + Intent resolvedIntent = null; + for (Intent intent : policyIntents) { + resolvedIntent = resolver.resolveModel(Intent.class, intent); + requiredIntents.add(resolvedIntent); + } + policyIntents.clear(); + policyIntents.addAll(requiredIntents); + } + + /** + * Resolve policy sets attached to a specific SCA Construct + * @param policySets list of attached policy sets + * @param resolver + */ + protected void resolvePolicySets(List<PolicySet> policySets, ModelResolver resolver) { + List<PolicySet> resolvedPolicySets = new ArrayList<PolicySet>(); + PolicySet resolvedPolicySet = null; + for (PolicySet policySet : policySets) { + if (policySet.isUnresolved()) { + resolvedPolicySet = resolver.resolveModel(PolicySet.class, policySet); + resolvedPolicySets.add(resolvedPolicySet); + } else { + resolvedPolicySets.add(policySet); + } + } + policySets.clear(); + policySets.addAll(resolvedPolicySets); + } + + /** + * Write the value of a property + * @param document + * @param element + * @param type + * @param writer + * @throws XMLStreamException + */ + protected void writePropertyValue(Object propertyValue, QName element, QName type, XMLStreamWriter writer) + throws XMLStreamException { + + if (propertyValue instanceof Document) { + Document document = (Document)propertyValue; + NodeList nodeList = document.getDocumentElement().getChildNodes(); + + for (int item = 0; item < nodeList.getLength(); ++item) { + Node node = nodeList.item(item); + int nodeType = node.getNodeType(); + if (nodeType == Node.ELEMENT_NODE) { + XMLStreamReader reader = + XMLInputFactory.newInstance().createXMLStreamReader(new DOMSource(node)); + + while (reader.hasNext()) { + switch (reader.next()) { + case XMLStreamConstants.START_ELEMENT: + QName name = reader.getName(); + writer.writeStartElement(name.getPrefix(), name.getLocalPart(), name.getNamespaceURI()); + + int namespaces = reader.getNamespaceCount(); + for (int i = 0; i < namespaces; i++) { + String prefix = reader.getNamespacePrefix(i); + String ns = reader.getNamespaceURI(i); + writer.writeNamespace(prefix, ns); + } + + if (!"".equals(name.getNamespaceURI())) { + writer.writeNamespace(name.getPrefix(), name.getNamespaceURI()); + } + + // add the attributes for this element + namespaces = reader.getAttributeCount(); + for (int i = 0; i < namespaces; i++) { + String ns = reader.getAttributeNamespace(i); + String prefix = reader.getAttributePrefix(i); + String qname = reader.getAttributeLocalName(i); + String value = reader.getAttributeValue(i); + + writer.writeAttribute(prefix, ns, qname, value); + } + + break; + case XMLStreamConstants.CDATA: + writer.writeCData(reader.getText()); + break; + case XMLStreamConstants.CHARACTERS: + writer.writeCharacters(reader.getText()); + break; + case XMLStreamConstants.END_ELEMENT: + writer.writeEndElement(); + break; + } + } + } else { + writer.writeCharacters(node.getTextContent()); + } + } + } + } + + protected void addInheritedIntents(List<Intent> sourceList, List<Intent> targetList) { + if (sourceList != null) { + targetList.addAll(sourceList); + } + } + + protected void addInheritedPolicySets(List<PolicySet> sourceList, List<PolicySet> targetList) { + if (sourceList != null) { + targetList.addAll(sourceList); + } + } + + /** + * + * @param reader + * @param elementName + * @param extensible + * @param extensionAttributeProcessor + * @throws ContributionReadException + * @throws XMLStreamException + */ + protected void readExtendedAttributes(XMLStreamReader reader, Extensible extensible) throws ContributionReadException, XMLStreamException { + super.readExtendedAttributes(reader, extensible, extensionAttributeProcessor, extensionFactory); + } + + + /*protected void validatePolicySets(PolicySetAttachPoint policySetAttachPoint) + throws ContributionResolveException { + validatePolicySets(policySetAttachPoint, policySetAttachPoint.getApplicablePolicySets()); + } + + + protected void validatePolicySets(PolicySetAttachPoint policySetAttachPoint, + List<PolicySet> applicablePolicySets) throws ContributionResolveException { + //Since the applicablePolicySets in a policySetAttachPoint will already have the + //list of policysets that might ever be applicable to this attachPoint, just check + //if the defined policysets feature in the list of applicable policysets + IntentAttachPointType attachPointType = policySetAttachPoint.getType(); + for ( PolicySet definedPolicySet : policySetAttachPoint.getPolicySets() ) { + if ( !definedPolicySet.isUnresolved() ) { + if ( !applicablePolicySets.contains(definedPolicySet)) { + throw new ContributionResolveException("Policy Set '" + definedPolicySet.getName() + + "' does not apply to binding type " + + attachPointType.getName()); + } + } else { + throw new ContributionResolveException("Policy Set '" + definedPolicySet.getName() + + "' is not defined in this domain "); + + + } + } + }*/ +} |