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Diffstat (limited to 'branches/sca-java-0.99/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/DefaultSCADomain.java')
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1 files changed, 500 insertions, 0 deletions
diff --git a/branches/sca-java-0.99/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/DefaultSCADomain.java b/branches/sca-java-0.99/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/DefaultSCADomain.java new file mode 100644 index 0000000000..1e6a5cb3b1 --- /dev/null +++ b/branches/sca-java-0.99/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/DefaultSCADomain.java @@ -0,0 +1,500 @@ +/* + * 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.host.embedded.impl; + +import java.io.IOException; +import java.net.MalformedURLException; +import java.net.URI; +import java.net.URL; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.concurrent.CopyOnWriteArrayList; + +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.ComponentService; +import org.apache.tuscany.sca.assembly.Composite; +import org.apache.tuscany.sca.assembly.CompositeService; +import org.apache.tuscany.sca.assembly.builder.CompositeBuilder; +import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException; +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.DeployedArtifact; +import org.apache.tuscany.sca.contribution.service.ContributionException; +import org.apache.tuscany.sca.contribution.service.ContributionService; +import org.apache.tuscany.sca.contribution.service.util.FileHelper; +import org.apache.tuscany.sca.core.assembly.ActivationException; +import org.apache.tuscany.sca.core.assembly.CompositeActivator; +import org.apache.tuscany.sca.core.assembly.RuntimeComponentImpl; +import org.apache.tuscany.sca.host.embedded.SCADomain; +import org.apache.tuscany.sca.host.embedded.management.ComponentListener; +import org.apache.tuscany.sca.host.embedded.management.ComponentManager; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.osoa.sca.CallableReference; +import org.osoa.sca.ComponentContext; +import org.osoa.sca.Constants; +import org.osoa.sca.ServiceReference; +import org.osoa.sca.ServiceRuntimeException; + +/** + * A default SCA domain facade implementation. + * + * @version $Rev$ $Date$ + */ +public class DefaultSCADomain extends SCADomain { + + private String uri; + private String[] composites; + private Composite domainComposite; + private Contribution contribution; + private Map<String, Component> components = new HashMap<String, Component>(); + private ReallySmallRuntime runtime; + private ComponentManager componentManager; + + /** + * Constructs a new domain facade. + * + * @param domainURI + * @param contributionLocation + * @param composites + */ + public DefaultSCADomain(ClassLoader runtimeClassLoader, + ClassLoader applicationClassLoader, + String domainURI, + String contributionLocation, + String... composites) { + this.uri = domainURI; + this.composites = composites; + + // Create and start the runtime + runtime = new ReallySmallRuntime(runtimeClassLoader); + try { + runtime.start(); + + } catch (ActivationException e) { + throw new ServiceRuntimeException(e); + } + + // Contribute the given contribution to an in-memory repository + ContributionService contributionService = runtime.getContributionService(); + URL contributionURL; + try { + contributionURL = getContributionLocation(applicationClassLoader, contributionLocation, this.composites); + if (contributionURL != null) { + // Make sure the URL is correctly encoded (for example, escape the space characters) + contributionURL = contributionURL.toURI().toURL(); + } + } catch (Exception e) { + throw new ServiceRuntimeException(e); + } + + try { + String contributionURI = FileHelper.getName(contributionURL.getPath()); + if(contributionURI == null || contributionURI.length() == 0) { + contributionURI = contributionURL.toString(); + } + contribution = contributionService.contribute(contributionURI, contributionURL, false); + } catch (ContributionException e) { + throw new ServiceRuntimeException(e); + } catch (IOException e) { + throw new ServiceRuntimeException(e); + } + + // Create an in-memory domain level composite + AssemblyFactory assemblyFactory = runtime.getAssemblyFactory(); + domainComposite = assemblyFactory.createComposite(); + domainComposite.setName(new QName(Constants.SCA_NS, "domain")); + domainComposite.setURI(domainURI); + + //when the deployable composites were specified when initializing the runtime + if (composites != null && composites.length > 0 && composites[0].length() > 0) { + // Include all specified deployable composites in the SCA domain + Map<String, Composite> compositeArtifacts = new HashMap<String, Composite>(); + for (DeployedArtifact artifact : contribution.getArtifacts()) { + if (artifact.getModel() instanceof Composite) { + compositeArtifacts.put(artifact.getURI(), (Composite)artifact.getModel()); + } + } + for (String compositePath : composites) { + Composite composite = compositeArtifacts.get(compositePath); + if (composite == null) { + throw new ServiceRuntimeException("Composite not found: " + compositePath); + } + domainComposite.getIncludes().add(composite); + } + } else { + // in this case, a sca-contribution.xml should have been specified + for(Composite composite : contribution.getDeployables()) { + domainComposite.getIncludes().add(composite); + } + + } + + // Build the SCA composites + CompositeBuilder compositeBuilder = runtime.getCompositeBuilder(); + + for (Composite composite: domainComposite.getIncludes()) { + try { + compositeBuilder.build(composite); + } catch (CompositeBuilderException e) { + throw new ServiceRuntimeException(e); + } + } + + // Activate and start composites + CompositeActivator compositeActivator = runtime.getCompositeActivator(); + compositeActivator.setDomainComposite(domainComposite); + for (Composite composite: domainComposite.getIncludes()) { + try { + compositeActivator.activate(composite); + } catch (ActivationException e) { + throw new ServiceRuntimeException(e); + } + } + for (Composite composite: domainComposite.getIncludes()) { + try { + for (Component component : composite.getComponents()) { + compositeActivator.start(component); + } + } catch (ActivationException e) { + throw new ServiceRuntimeException(e); + } + } + + // Index the top level components + for (Composite composite: domainComposite.getIncludes()) { + for (Component component : composite.getComponents()) { + components.put(component.getName(), component); + } + } + + this.componentManager = new DefaultSCADomainComponentManager(this); + } + + @Override + public void close() { + + super.close(); + + // Stop and deactivate composites + CompositeActivator compositeActivator = runtime.getCompositeActivator(); + for (Composite composite: domainComposite.getIncludes()) { + try { + for (Component component : composite.getComponents()) { + compositeActivator.stop(component); + } + } catch (ActivationException e) { + throw new ServiceRuntimeException(e); + } + } + for (Composite composite: domainComposite.getIncludes()) { + try { + compositeActivator.deactivate(composite); + } catch (ActivationException e) { + throw new ServiceRuntimeException(e); + } + } + + // Remove the contribution from the in-memory repository + ContributionService contributionService = runtime.getContributionService(); + try { + contributionService.remove(contribution.getURI()); + } catch (ContributionException e) { + throw new ServiceRuntimeException(e); + } + + // Stop the runtime + try { + runtime.stop(); + } catch (ActivationException e) { + throw new ServiceRuntimeException(e); + } + } + + /** + * Determine the location of a contribution, given a contribution path and a + * list of composites. + * + * @param contributionPath + * @param composites + * @param classLoader + * @return + * @throws MalformedURLException + */ + private URL getContributionLocation(ClassLoader classLoader, String contributionPath, String[] composites) + throws MalformedURLException { + if (contributionPath != null && contributionPath.length() > 0) { + //encode spaces as they would cause URISyntaxException + contributionPath = contributionPath.replace(" ", "%20"); + URI contributionURI = URI.create(contributionPath); + if (contributionURI.isAbsolute() || composites.length == 0) { + return new URL(contributionPath); + } + } + + String contributionArtifactPath = null; + URL contributionArtifactURL = null; + if (composites != null && composites.length > 0 && composites[0].length() > 0) { + + // Here the SCADomain was started with a reference to a composite file + contributionArtifactPath = composites[0]; + contributionArtifactURL = classLoader.getResource(contributionArtifactPath); + if (contributionArtifactURL == null) { + throw new IllegalArgumentException("Composite not found: " + contributionArtifactPath); + } + } else { + + // Here the SCADomain was started without any reference to a composite file + // We are going to look for an sca-contribution.xml or sca-contribution-generated.xml + + // Look for META-INF/sca-contribution.xml + contributionArtifactPath = Contribution.SCA_CONTRIBUTION_META; + contributionArtifactURL = classLoader.getResource(contributionArtifactPath); + + // Look for META-INF/sca-contribution-generated.xml + if( contributionArtifactURL == null ) { + contributionArtifactPath = Contribution.SCA_CONTRIBUTION_GENERATED_META; + contributionArtifactURL = classLoader.getResource(contributionArtifactPath); + } + + // Look for META-INF/sca-deployables directory + if (contributionArtifactURL == null) { + contributionArtifactPath = Contribution.SCA_CONTRIBUTION_DEPLOYABLES; + contributionArtifactURL = classLoader.getResource(contributionArtifactPath); + } + } + + if (contributionArtifactURL == null) { + throw new IllegalArgumentException("Can't determine contribution deployables. Either specify a composite file, or use an sca-contribution.xml file to specify the deployables."); + } + + URL contributionURL = null; + // "jar:file://....../something.jar!/a/b/c/app.composite" + try { + String url = contributionArtifactURL.toExternalForm(); + String protocol = contributionArtifactURL.getProtocol(); + if ("file".equals(protocol)) { + // directory contribution + if (url.endsWith(contributionArtifactPath)) { + String location = url.substring(0, url.lastIndexOf(contributionArtifactPath)); + // workaround from evil url/uri form maven + contributionURL = FileHelper.toFile(new URL(location)).toURI().toURL(); + } + + } else if ("jar".equals(protocol)) { + // jar contribution + String location = url.substring(4, url.lastIndexOf("!/")); + // workaround for evil url/uri from maven + contributionURL = FileHelper.toFile(new URL(location)).toURI().toURL(); + } + } catch (MalformedURLException mfe) { + throw new IllegalArgumentException(mfe); + } + + return contributionURL; + } + + @Override + public <B, R extends CallableReference<B>> R cast(B target) throws IllegalArgumentException { + return (R) runtime.getProxyFactory().cast(target); + } + + @Override + public <B> B getService(Class<B> businessInterface, String serviceName) { + ServiceReference<B> serviceReference = getServiceReference(businessInterface, serviceName); + if (serviceReference == null) { + throw new ServiceRuntimeException("Service not found: " + serviceName); + } + return serviceReference.getService(); + } + + @Override + public <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String name) { + + // Extract the component name + String componentName; + String serviceName; + int i = name.indexOf('/'); + if (i != -1) { + componentName = name.substring(0, i); + serviceName = name.substring(i + 1); + + } else { + componentName = name; + serviceName = null; + } + + // Lookup the component in the domain + Component component = components.get(componentName); + if (component == null) { + throw new ServiceRuntimeException("Component not found: " + componentName); + } + ComponentContext componentContext = null; + + // If the component is a composite, then we need to find the + // non-composite component that provides the requested service + if (component.getImplementation() instanceof Composite) { + for (ComponentService componentService : component.getServices()) { + if (serviceName == null || serviceName.equals(componentService.getName())) { + CompositeService compositeService = (CompositeService)componentService.getService(); + if (compositeService != null) { + if (serviceName != null) { + serviceName = "$promoted$." + serviceName; + } + componentContext = ((RuntimeComponent)compositeService.getPromotedComponent()).getComponentContext(); + } + break; + } + } + if (componentContext == null) { + throw new ServiceRuntimeException("Composite service not found: " + name); + } + } else { + componentContext = ((RuntimeComponent)component).getComponentContext(); + } + + ServiceReference<B> serviceReference; + if (serviceName != null) { + serviceReference = componentContext.createSelfReference(businessInterface, serviceName); + } else { + serviceReference = componentContext.createSelfReference(businessInterface); + } + return serviceReference; + + } + + @Override + public String getURI() { + return uri; + } + + @Override + public ComponentManager getComponentManager() { + return componentManager; + } + + public Set<String> getComponentNames() { + Set<String> componentNames = new HashSet<String>(); + for (DeployedArtifact artifact : contribution.getArtifacts()) { + if (artifact.getModel() instanceof Composite) { + for (Component component : ((Composite)artifact.getModel()).getComponents()) { + componentNames.add(component.getName()); + } + } + } + return componentNames; + } + + + public Component getComponent(String componentName) { + for (DeployedArtifact artifact : contribution.getArtifacts()) { + if (artifact.getModel() instanceof Composite) { + for (Component component : ((Composite)artifact.getModel()).getComponents()) { + if (component.getName().equals(componentName)) { + return component; + } + } + } + } + return null; + } + + public void startComponent(String componentName) throws ActivationException { + Component component = getComponent(componentName); + if (component == null) { + throw new IllegalArgumentException("no component: " + componentName); + } + CompositeActivator compositeActivator = runtime.getCompositeActivator(); + compositeActivator.start(component); + } + + public void stopComponent(String componentName) throws ActivationException { + Component component = getComponent(componentName); + if (component == null) { + throw new IllegalArgumentException("no component: " + componentName); + } + CompositeActivator compositeActivator = runtime.getCompositeActivator(); + compositeActivator.stop(component); + } +} + +class DefaultSCADomainComponentManager implements ComponentManager { + + protected DefaultSCADomain scaDomain; + protected List<ComponentListener> listeners = new CopyOnWriteArrayList<ComponentListener>(); + + public DefaultSCADomainComponentManager(DefaultSCADomain scaDomain) { + this.scaDomain = scaDomain; + } + + public void addComponentListener(ComponentListener listener) { + this.listeners.add(listener); + } + + public void removeComponentListener(ComponentListener listener) { + this.listeners.remove(listener); + } + + public Set<String> getComponentNames() { + return scaDomain.getComponentNames(); + } + + public Component getComponent(String componentName) { + return scaDomain.getComponent(componentName); + } + + public void startComponent(String componentName) throws ActivationException { + scaDomain.startComponent(componentName); + } + + public void stopComponent(String componentName) throws ActivationException { + scaDomain.stopComponent(componentName); + } + + public void notifyComponentStarted(String componentName) { + for (ComponentListener listener : listeners) { + try { + listener.componentStarted(componentName); + } catch (Exception e) { + e.printStackTrace(); // TODO: log + } + } + } + + public void notifyComponentStopped(String componentName) { + for (ComponentListener listener : listeners) { + try { + listener.componentStopped(componentName); + } catch (Exception e) { + e.printStackTrace(); // TODO: log + } + } + } + + public boolean isComponentStarted(String componentName) { + RuntimeComponentImpl runtimeComponent = (RuntimeComponentImpl)getComponent(componentName); + return runtimeComponent.isStarted(); + } + +} |