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Diffstat (limited to 'sandbox/sebastien/java/vhost/unreleased/samples/implementation-sample-async/src/main/java/sample/impl/EmbedUtil.java')
| -rw-r--r-- | sandbox/sebastien/java/vhost/unreleased/samples/implementation-sample-async/src/main/java/sample/impl/EmbedUtil.java | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/vhost/unreleased/samples/implementation-sample-async/src/main/java/sample/impl/EmbedUtil.java b/sandbox/sebastien/java/vhost/unreleased/samples/implementation-sample-async/src/main/java/sample/impl/EmbedUtil.java new file mode 100644 index 0000000000..0ccbcc9e36 --- /dev/null +++ b/sandbox/sebastien/java/vhost/unreleased/samples/implementation-sample-async/src/main/java/sample/impl/EmbedUtil.java @@ -0,0 +1,311 @@ +/* + * 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 sample.impl; + +import java.net.URI; +import java.net.URL; +import java.util.Arrays; + +import javax.wsdl.PortType; +import javax.xml.namespace.QName; + +import org.apache.tuscany.sca.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.Component; +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.Contract; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.assembly.Reference; +import org.apache.tuscany.sca.assembly.Service; +import org.apache.tuscany.sca.contribution.Artifact; +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.ContributionFactory; +import org.apache.tuscany.sca.contribution.processor.ContributionResolveException; +import org.apache.tuscany.sca.contribution.processor.ExtensibleURLArtifactProcessor; +import org.apache.tuscany.sca.contribution.processor.ProcessorContext; +import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint; +import org.apache.tuscany.sca.contribution.resolver.ExtensibleModelResolver; +import org.apache.tuscany.sca.contribution.resolver.ModelResolverExtensionPoint; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.FactoryExtensionPoint; +import org.apache.tuscany.sca.databinding.xml.DOMDataBinding; +import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException; +import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory; +import org.apache.tuscany.sca.interfacedef.wsdl.WSDLDefinition; +import org.apache.tuscany.sca.interfacedef.wsdl.WSDLFactory; +import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterface; +import org.apache.tuscany.sca.interfacedef.wsdl.WSDLObject; +import org.apache.tuscany.sca.node.Node; +import org.apache.tuscany.sca.node.NodeFactory; +import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint; + +/** + * A few utility functions to help embed a Tuscany runtime, and a simple DSL + * to help assemble and run SCDL. + */ +public class EmbedUtil { + + /** + * A runtime embedder context, which conveniently initializes a Node factory + * and gets the various registries, factories and extension points we need. + */ + static class Context { + final NodeFactory nf; + final ExtensionPointRegistry epr; + final FactoryExtensionPoint fep; + final ContributionFactory cf; + final AssemblyFactory af; + final JavaInterfaceFactory jif; + final WSDLFactory wif; + final URLArtifactProcessorExtensionPoint apep; + final ExtensibleURLArtifactProcessor aproc; + final ModelResolverExtensionPoint mrep; + final ProviderFactoryExtensionPoint pfep; + + Context(final NodeFactory nf) { + this.nf = nf; + epr = nf.getExtensionPointRegistry(); + fep = epr.getExtensionPoint(FactoryExtensionPoint.class); + cf = fep.getFactory(ContributionFactory.class); + af = fep.getFactory(AssemblyFactory.class); + jif = fep.getFactory(JavaInterfaceFactory.class); + wif = fep.getFactory(WSDLFactory.class); + apep = epr.getExtensionPoint(URLArtifactProcessorExtensionPoint.class); + aproc = new ExtensibleURLArtifactProcessor(apep); + mrep = epr.getExtensionPoint(ModelResolverExtensionPoint.class); + pfep = epr.getExtensionPoint(ProviderFactoryExtensionPoint.class); + } + } + + static Context embedContext(NodeFactory nf) { + return new Context(nf); + } + + /** + * A mini DSL to help build and assemble contributions and SCDL composites. + */ + interface Builder<T> { + T build(Context ec); + } + + static <T> T build(final Builder<T> builder, final Context ec) { + return builder.build(ec); + } + + /** + * Return a contribution builder. + */ + static Builder<Contribution> contrib(final String uri, final String loc, final Builder<Artifact>... artifacts) { + return new Builder<Contribution>() { + public Contribution build(final Context ec) { + final Contribution c = ec.cf.createContribution(); + c.setURI(uri); + c.setLocation(loc); + c.setModelResolver(new ExtensibleModelResolver(c, ec.mrep, ec.fep)); + for(Builder<Artifact> a: artifacts) + c.getArtifacts().add(a.build(ec)); + return c; + } + }; + } + + /** + * Return an artifact builder. + */ + static Builder<Artifact> artifact(final String uri, final Object model) { + return new Builder<Artifact>() { + public Artifact build(final Context ec) { + final Artifact a = ec.cf.createArtifact(); + a.setURI(uri); + a.setModel(model); + return a; + } + }; + } + + /** + * Return a composite builder. + */ + static Builder<Composite> composite(final String ns, final String name, final Builder<Component>... components) { + return new Builder<Composite>() { + public Composite build(final Context ec) { + final Composite compos = ec.af.createComposite(); + compos.setName(new QName(ns, name)); + for(final Builder<Component> c: components) + compos.getComponents().add(c.build(ec)); + return compos; + } + }; + } + + /** + * Return a component builder. + */ + static Builder<Component> component(final String name, final Builder<Implementation> impl, final Builder<ComponentReference>... references) { + return new Builder<Component>() { + public Component build(final Context ec) { + final Component c = ec.af.createComponent(); + c.setName(name); + c.setImplementation(impl.build(ec)); + for(Builder<ComponentReference> r: references) + c.getReferences().add(r.build(ec)); + return c; + } + }; + } + + /** + * Return an implementation builder. + */ + static Builder<Implementation> implementation(final Class<?> clazz, final Builder<Contract>... contracts) { + return new Builder<Implementation>() { + public SampleImplementation build(final Context ec) { + final SampleImplementation impl = ImplUtil.implementation(clazz.getName()); + impl.clazz = clazz; + impl.setUnresolved(false); + for(final Builder<Contract> b: contracts) { + Contract c = b.build(ec); + if(c instanceof Service) + impl.getServices().add((Service)c); + else + impl.getReferences().add((Reference)c); + } + return impl; + } + }; + } + + /** + * Return a reference builder. + */ + static Builder<Contract> reference(final String name, final Class<?> c) { + return new Builder<Contract>() { + public Reference build(final Context ec) { + try { + return ImplUtil.reference(name, c, ec.jif, ec.af); + } catch(InvalidInterfaceException e) { + throw new RuntimeException(e); + } + } + }; + } + + static Builder<Contract> reference(final String name, final WSDLInterface c) { + return new Builder<Contract>() { + public Reference build(final Context ec) { + return ImplUtil.reference(name, c, ec.wif, ec.af); + } + }; + } + + static Builder<ComponentReference> reference(final String name, final String target) { + return new Builder<ComponentReference>() { + public ComponentReference build(final Context ec) { + final ComponentReference r = ec.af.createComponentReference(); + r.setName(name); + final ComponentService s = ec.af.createComponentService(); + s.setUnresolved(true); + s.setName(target); + r.getTargets().add(s); + return r; + } + }; + } + + /** + * Return a service builder. + */ + static Builder<Contract> service(final Class<?> c) { + return new Builder<Contract>() { + public Service build(final Context ec) { + try { + return ImplUtil.service(c, ec.jif, ec.af); + } catch(InvalidInterfaceException e) { + throw new RuntimeException(e); + } + } + }; + } + + static Builder<Contract> service(final WSDLInterface c) { + return new Builder<Contract>() { + public Service build(final Context ec) { + return ImplUtil.service(c, ec.wif, ec.af); + } + }; + } + + /** + * Return a WSDLInterface builder which loads a WSDL into a contribution. + */ + static Builder<WSDLInterface> wsdli(final String uri, final String ns, final String name, final Contribution c) { + return new Builder<WSDLInterface>() { + public WSDLInterface build(final Context ec) { + try { + final ProcessorContext ctx = new ProcessorContext(); + final WSDLDefinition wd = ec.aproc.read(null, new URI(uri), new URL(new URL(c.getLocation()), uri), ctx, WSDLDefinition.class); + c.getModelResolver().addModel(wd, ctx); + c.getModelResolver().resolveModel(WSDLDefinition.class, wd, ctx); + final WSDLObject<PortType> pt = wd.getWSDLObject(PortType.class, new QName(ns, name)); + if(pt == null) + throw new ContributionResolveException("Couldn't find " + name); + final WSDLInterface nwi = ec.wif.createWSDLInterface(pt.getElement(), wd, c.getModelResolver(), null); + nwi.setWsdlDefinition(wd); + nwi.resetDataBinding(DOMDataBinding.NAME); + return nwi; + } catch(Exception e) { + throw new RuntimeException(e); + } + } + }; + } + + /** + * Return the extension point registry used by our nodes. + */ + static ExtensionPointRegistry extensionPoints(final Context ec) { + return ec.epr; + } + + /** + * Return the provider factory extension point used by our nodes. + */ + static ProviderFactoryExtensionPoint providerFactories(final Context ec) { + return ec.pfep; + } + + /** + * Add a deployable composite to a contribution. + */ + static Contribution deploy(final Contribution contrib, final Composite... comps) { + for(Composite c: comps) + contrib.getDeployables().add(c); + return contrib; + } + + /** + * Configure a node with a list of contributions. + */ + static Node node(final NodeFactory nf, final Contribution... contributions) { + return nf.createNode(Arrays.asList(contributions)); + } + +} |