diff options
Diffstat (limited to 'branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/BaseAssemblyProcessor.java')
-rw-r--r-- | branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/BaseAssemblyProcessor.java | 814 |
1 files changed, 814 insertions, 0 deletions
diff --git a/branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/BaseAssemblyProcessor.java b/branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/BaseAssemblyProcessor.java new file mode 100644 index 0000000000..b94d9e0927 --- /dev/null +++ b/branches/sca-android-r643746/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/assembly/xml/BaseAssemblyProcessor.java @@ -0,0 +1,814 @@ +/*
+ * 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.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.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.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: 643489 $ $Date: 2008-04-01 10:06:42 -0800 (Tue, 01 Apr 2008) $
+ */
+abstract class BaseAssemblyProcessor extends BaseStAXArtifactProcessor implements Constants {
+
+ protected ContributionFactory contributionFactory;
+ protected AssemblyFactory assemblyFactory;
+ protected PolicyFactory policyFactory;
+ protected StAXArtifactProcessor<Object> extensionProcessor;
+ protected PolicyAttachPointProcessor policyProcessor;
+ private DocumentBuilderFactory documentBuilderFactory;
+ protected IntentAttachPointTypeFactory intentAttachPointTypeFactory;
+
+ /**
+ * Constructs a new BaseArtifactProcessor.
+ * @param contribFactory
+ * @param factory
+ * @param policyFactory
+ */
+ @SuppressWarnings("unchecked")
+ public BaseAssemblyProcessor(ContributionFactory contribFactory,
+ AssemblyFactory factory,
+ PolicyFactory policyFactory,
+ StAXArtifactProcessor extensionProcessor) {
+ this.assemblyFactory = factory;
+ this.policyFactory = policyFactory;
+ this.extensionProcessor = (StAXArtifactProcessor<Object>)extensionProcessor;
+ this.contributionFactory = contribFactory;
+ this.policyProcessor = new PolicyAttachPointProcessor(policyFactory);
+ this.intentAttachPointTypeFactory = new IntentAttachPointTypeFactoryImpl();
+ }
+
+ /**
+ * Constructs a new BaseArtifactProcessor.
+ * @param factory
+ * @param policyFactory
+ */
+ @SuppressWarnings("unchecked")
+ public BaseAssemblyProcessor(AssemblyFactory factory,
+ PolicyFactory policyFactory,
+ StAXArtifactProcessor extensionProcessor) {
+ this.assemblyFactory = factory;
+ this.policyFactory = policyFactory;
+ this.extensionProcessor = (StAXArtifactProcessor<Object>)extensionProcessor;
+ this.policyProcessor = new PolicyAttachPointProcessor(policyFactory);
+ }
+
+ /**
+ * 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);
+ }
+ }
+
+ /**
+ * 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().toString() : "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 policy intents and policysets
+ if ( parent != null && parent instanceof PolicySetAttachPoint ) {
+ addInheritedIntents(((PolicySetAttachPoint)parent).getRequiredIntents(), contract.getRequiredIntents());
+ addInheritedPolicySets(((PolicySetAttachPoint)parent).getPolicySets(), contract.getPolicySets());
+ addInheritedPolicySets(((PolicySetAttachPoint)parent).getApplicablePolicySets(), contract.getApplicablePolicySets());
+ }
+
+ for ( ConfiguredOperation confOp : contract.getConfiguredOperations() ) {
+ resolveIntents(confOp.getRequiredIntents(), resolver);
+ resolvePolicySets(confOp.getPolicySets(), resolver);
+ resolvePolicySets(confOp.getApplicablePolicySets(), resolver);
+
+ //inherit intents and policysets from parent contract
+ addInheritedIntents(contract.getRequiredIntents(), confOp.getRequiredIntents());
+ addInheritedPolicySets(contract.getPolicySets(), confOp.getPolicySets());
+ 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().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());
+
+ addInheritedIntents(((PolicySetAttachPoint)binding).getRequiredIntents(),
+ confOp.getRequiredIntents());
+ addInheritedPolicySets(((PolicySetAttachPoint)binding).getPolicySets(),
+ confOp.getPolicySets());
+ }
+ }
+ }
+
+ // 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
+ addInheritedIntents(contract.getRequiredIntents(), contract.getCallback().getRequiredIntents());
+ addInheritedPolicySets(contract.getPolicySets(), contract.getCallback().getPolicySets());
+ 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 ) {
+ 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) {
+ throw new ContributionReadException(e);
+ }
+
+ // 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) {
+ resolvedPolicySet = resolver.resolveModel(PolicySet.class, policySet);
+ resolvedPolicySets.add(resolvedPolicySet);
+ }
+ 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);
+ }
+ }
+
+
+ /*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 ");
+
+
+ }
+ }
+ }*/
+}
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