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diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/sca/provider/DefaultSCABindingMapper.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/sca/provider/DefaultSCABindingMapper.java
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+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/sca/provider/DefaultSCABindingMapper.java
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+/*
+ * 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.binding.sca.provider;
+
+import java.io.StringReader;
+import java.util.Map;
+import java.util.logging.Logger;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sca.assembly.Base;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.SCABinding;
+import org.apache.tuscany.sca.assembly.builder.BindingBuilder;
+import org.apache.tuscany.sca.assembly.builder.BuilderContext;
+import org.apache.tuscany.sca.assembly.builder.BuilderExtensionPoint;
+import org.apache.tuscany.sca.assembly.xml.Constants;
+import org.apache.tuscany.sca.common.xml.stax.StAXHelper;
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.extensibility.ServiceDeclarationParser;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.policy.PolicySubject;
+import org.apache.tuscany.sca.provider.ProviderFactory;
+import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
+import org.apache.tuscany.sca.provider.SCABindingMapper;
+import org.apache.tuscany.sca.runtime.DomainRegistry;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * Default implementation of SCABindingMapper
+ */
+public class DefaultSCABindingMapper implements SCABindingMapper {
+ private final static Logger logger = Logger.getLogger(DefaultSCABindingMapper.class.getName());
+ protected ExtensionPointRegistry registry;
+ protected ProviderFactoryExtensionPoint providerFactories;
+ protected StAXArtifactProcessorExtensionPoint processors;
+ protected QName defaultMappedBinding;
+ protected QName defaultLocalBinding;
+ protected boolean alwaysDistributed;
+
+ // Test to look at supporting concurrent binding.sca delegations
+ protected QName [] activeDelegations = {new QName(Base.SCA11_TUSCANY_NS, "binding.local"),
+ new QName(Base.SCA11_NS, "binding.ws")};
+
+ public DefaultSCABindingMapper(ExtensionPointRegistry registry, Map<String, String> attributes) {
+ this.registry = registry;
+ providerFactories = registry.getExtensionPoint(ProviderFactoryExtensionPoint.class);
+ processors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+ defaultMappedBinding = getDefaultMappedBinding(attributes);
+ defaultLocalBinding = new QName(Base.SCA11_TUSCANY_NS, "binding.local");
+ if (attributes != null && "true".equalsIgnoreCase(attributes.get("alwaysDistributed"))) {
+ alwaysDistributed = true;
+ }
+ }
+
+ protected QName getDefaultMappedBinding(Map<String, String> attributes) {
+ QName defaultMappedBinding = null;
+ if (attributes != null) {
+ String qname = attributes.get("mappedBinding");
+ if (qname != null) {
+ defaultMappedBinding = ServiceDeclarationParser.getQName(qname);
+ }
+ }
+ if (defaultMappedBinding == null) {
+ String qname =
+ System.getProperty("org.apache.tuscany.sca.binding.sca.provider.SCABindingMapper.mappedBinding");
+ if (qname != null) {
+ defaultMappedBinding = ServiceDeclarationParser.getQName(qname);
+ } else {
+ // By default, mapping to binding.ws or if thats not available then binding.rmi
+ defaultMappedBinding = new QName(Base.SCA11_TUSCANY_NS, "binding.hazelcast");
+ if (!isBindingSupported(defaultMappedBinding)) {
+ defaultMappedBinding = new QName(Base.SCA11_NS, "binding.ws");
+ if (!isBindingSupported(defaultMappedBinding)) {
+ defaultMappedBinding = new QName(Base.SCA11_TUSCANY_NS, "binding.rmi");
+ }
+ }
+ }
+ }
+ return defaultMappedBinding;
+ }
+
+ private BindingBuilder<?> getBindingBuilder(QName binding) {
+ if (isBindingSupported(binding)) {
+ BuilderExtensionPoint builders = registry.getExtensionPoint(BuilderExtensionPoint.class);
+ BindingBuilder<?> builder = builders.getBindingBuilder(binding);
+ return builder;
+ } else {
+ return null;
+ }
+ }
+
+ private boolean isBindingSupported(QName binding) {
+ if (binding == null) {
+ return false;
+ }
+ // Check if there is a processor
+ StAXArtifactProcessor<?> processor = processors.getProcessor(binding);
+ if (processor == null) {
+ // logger.warning("Mapped binding for binding.sca is not supported: " + binding);
+ return false;
+ }
+
+ try {
+ if (processor != null) {
+ // Futher check if the provider is present
+ Binding bindingTemplate = createDelegatingBinding(binding);
+ ProviderFactory<?> providerFactory = providerFactories.getProviderFactory(bindingTemplate.getClass());
+ if (providerFactory == null) {
+ // logger.warning("Mapped binding for binding.sca is not supported: " + binding);
+ processor = null;
+ return false;
+ }
+ }
+ } catch (Throwable e) {
+ throw new ServiceRuntimeException(e);
+ }
+ return true;
+ }
+
+ public RuntimeEndpoint map(RuntimeEndpoint endpoint) {
+ QName bindingType = chooseBinding(endpoint);
+ if (!isBindingSupported(bindingType)) {
+ logger.warning("Mapped binding for binding.sca is not supported: " + bindingType);
+ return null;
+ }
+
+ // create a copy of the endpoint ready to set the remote binding. The original endpoint
+ // retains binding.sca
+ RuntimeEndpoint ep = null;
+ try {
+ ep = (RuntimeEndpoint)endpoint.clone();
+ } catch (Exception ex) {
+ // we know we can clone endpoint references
+ }
+
+ Binding binding = map(endpoint.getBinding(), bindingType);
+ ep.setBinding(binding);
+ BindingBuilder builder = getBindingBuilder(bindingType);
+ if (builder != null) {
+ builder.build(ep.getComponent(), ep.getService(), binding, new BuilderContext(registry), false);
+ }
+ return ep;
+ }
+
+ public RuntimeEndpointReference map(RuntimeEndpointReference endpointReference) {
+ QName bindingType = chooseBinding(endpointReference);
+ if (!isBindingSupported(bindingType)) {
+ logger.warning("Mapped binding for binding.sca is not supported: " + bindingType);
+ return null;
+ }
+
+ // create a copy of the endpoint reference ready to set the remote binding. The original
+ // endpoint reference reatins binding.sca
+ RuntimeEndpointReference epr = null;
+ try {
+ epr = (RuntimeEndpointReference)endpointReference.clone();
+ } catch (Exception ex) {
+ // we know we can clone endpoint references
+ }
+
+ Binding binding = map(endpointReference.getBinding(), bindingType);
+ epr.setBinding(binding);
+
+ // epr.setTargetEndpoint(map((RuntimeEndpoint)epr.getTargetEndpoint()));
+
+ BindingBuilder builder = getBindingBuilder(bindingType);
+ if (builder != null) {
+ builder.build(epr.getComponent(), epr.getReference(), binding, new BuilderContext(registry), false);
+ }
+
+ return epr;
+ }
+
+ protected Binding map(Binding scaBinding, QName newBindingType) {
+ try {
+ Binding binding = createDelegatingBinding(newBindingType);
+ binding.setName(scaBinding.getName());
+ if (((SCABinding)scaBinding).getDelegateBindingURI() != null){
+ // if this is an SCA binding that's been resolved via the registry then
+ // the URI of the target service is delegate specific and is stored
+ // in this new slot in the binding model
+ binding.setURI(((SCABinding)scaBinding).getDelegateBindingURI());
+ } else {
+ binding.setURI(scaBinding.getURI());
+ }
+ binding.setOperationSelector(scaBinding.getOperationSelector());
+ binding.setRequestWireFormat(scaBinding.getRequestWireFormat());
+ binding.setResponseWireFormat(scaBinding.getResponseWireFormat());
+ if (binding instanceof PolicySubject && scaBinding instanceof PolicySubject) {
+ PolicySubject subject1 = (PolicySubject)binding;
+ PolicySubject subject2 = (PolicySubject)scaBinding;
+ subject1.getPolicySets().addAll(subject2.getPolicySets());
+ subject1.getRequiredIntents().addAll(subject2.getRequiredIntents());
+ }
+ return binding;
+ } catch (Throwable e) {
+ throw new ServiceRuntimeException(e);
+ }
+
+ }
+
+ protected Binding createDelegatingBinding(QName bindingType) throws XMLStreamException, ContributionReadException {
+ StAXArtifactProcessor processor = processors.getProcessor(bindingType);
+ if (processor == null) {
+ logger.warning("Mapped binding for binding.sca is not supported: " + bindingType);
+ }
+
+ StringBuffer xml = new StringBuffer();
+ xml.append("<").append(bindingType.getLocalPart()).append(" xmlns:b=\"").append(bindingType.getNamespaceURI())
+ .append("\"/>");
+
+ StAXHelper staxHelper = StAXHelper.getInstance(registry);
+ XMLStreamReader reader = staxHelper.createXMLStreamReader(new StringReader(xml.toString()));
+ reader.nextTag();
+ Binding binding = (Binding)processor.read(reader, new ProcessorContext(registry));
+
+ return binding;
+ }
+
+ /*
+ public boolean isRemotable(RuntimeEndpoint endpoint) {
+ return supportsDistributedSCA && isBindingSupported(chooseBinding(endpoint));
+ }
+
+ public boolean isRemotable(RuntimeEndpointReference endpointReference) {
+ return supportsDistributedSCA && isBindingSupported(chooseBinding(endpointReference));
+ }
+ */
+
+ /**
+ * Choose the physical binding for service-side remotable binding.sca
+ * @param endpoint
+ * @return
+ */
+ protected QName chooseBinding(RuntimeEndpoint endpoint) {
+ DomainRegistry domainRegistry = endpoint.getCompositeContext().getEndpointRegistry();
+ boolean distributed = alwaysDistributed || domainRegistry.isDistributed();
+ InterfaceContract interfaceContract = endpoint.getService().getInterfaceContract();
+ if(interfaceContract != null
+ && interfaceContract.getInterface() != null
+ && interfaceContract.getInterface().isRemotable()
+ && distributed
+ && isBindingSupported(defaultMappedBinding)) {
+ return defaultMappedBinding;
+ }
+
+ return defaultLocalBinding;
+ }
+
+ /**
+ * Choose the physical binding for reference-side remotable binding.sca
+ * @param endpointReference
+ * @return
+ */
+ protected QName chooseBinding(RuntimeEndpointReference endpointReference) {
+ DomainRegistry domainRegistry = endpointReference.getCompositeContext().getEndpointRegistry();
+ boolean distributed = alwaysDistributed || domainRegistry.isDistributed();
+ if(endpointReference.getTargetEndpoint().isRemote()) {
+ RuntimeComponentReference ref = (RuntimeComponentReference)endpointReference.getReference();
+ if(ref.getInterfaceContract() != null && !ref.getInterfaceContract().getInterface().isRemotable()) {
+ throw new ServiceRuntimeException("Reference interface not remotable for component: "
+ + endpointReference.getComponent().getName()
+ + " and reference: "
+ + ref.getName());
+ }
+
+ if(distributed && isBindingSupported(defaultMappedBinding)) {
+ return defaultMappedBinding;
+ }
+ }
+
+ return defaultLocalBinding;
+ }
+
+ public QName[] getActiveDelegations(){
+ return activeDelegations;
+ }
+
+}