diff options
Diffstat (limited to 'sca-java-1.x/tags/1.5.1-RC2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/ImplementationsActivator.java')
-rw-r--r-- | sca-java-1.x/tags/1.5.1-RC2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/ImplementationsActivator.java | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.5.1-RC2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/ImplementationsActivator.java b/sca-java-1.x/tags/1.5.1-RC2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/ImplementationsActivator.java new file mode 100644 index 0000000000..a861a8ddf0 --- /dev/null +++ b/sca-java-1.x/tags/1.5.1-RC2/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/ImplementationsActivator.java @@ -0,0 +1,135 @@ +/* + * 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.extension.helper.impl; + +import java.util.List; + +import javax.xml.namespace.QName; + +import org.apache.tuscany.sca.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.assembly.xml.Constants; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +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.core.ModuleActivator; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.databinding.Mediator; +import org.apache.tuscany.sca.extension.helper.ImplementationActivator; +import org.apache.tuscany.sca.extension.helper.utils.DefaultPropertyValueObjectFactory; +import org.apache.tuscany.sca.extension.helper.utils.PropertyValueObjectFactory; +import org.apache.tuscany.sca.provider.ImplementationProvider; +import org.apache.tuscany.sca.provider.ImplementationProviderFactory; +import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint; +import org.apache.tuscany.sca.runtime.RuntimeComponent; + +/** + * A Tuscany ModuleActivator which activates all the ImplementationActivators + * + * @version $Rev$ $Date$ + */ +public class ImplementationsActivator implements ModuleActivator { + + protected List<ImplementationActivator> implementationActivators; + + public void start(ExtensionPointRegistry registry) { + + ModelFactoryExtensionPoint factories = registry.getExtensionPoint(ModelFactoryExtensionPoint.class); + AssemblyFactory assemblyFactory = factories.getFactory(AssemblyFactory.class); + + Mediator mediator = registry.getExtensionPoint(UtilityExtensionPoint.class).getUtility(Mediator.class); + + //FIXME Pass this factory differently as it's not an extension point + PropertyValueObjectFactory propertyFactory = new DefaultPropertyValueObjectFactory(mediator); + registry.addExtensionPoint(propertyFactory); + + this.implementationActivators = DiscoveryUtils.discoverActivators(ImplementationActivator.class, registry); + + StAXArtifactProcessorExtensionPoint staxProcessors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class); + ProviderFactoryExtensionPoint providerFactories = registry.getExtensionPoint(ProviderFactoryExtensionPoint.class); + + for (final ImplementationActivator implementationActivator : implementationActivators) { + + Class<Implementation> implClass = implementationActivator.getImplementationClass(); + QName scdlQName = getSCDLQName(implClass); + staxProcessors.addArtifactProcessor(new SCDLProcessor(assemblyFactory, scdlQName, implClass, registry, factories)); + + if (implementationActivator.getImplementationClass() != null && providerFactories != null) { + addImplementationProvider(implementationActivator, providerFactories); + } + } + } + + public void stop(ExtensionPointRegistry registry) { + StAXArtifactProcessorExtensionPoint staxProcessors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class); + + for (final ImplementationActivator implementationActivator : implementationActivators) { + if (staxProcessors != null) { + StAXArtifactProcessor processor = staxProcessors.getProcessor(getSCDLQName(implementationActivator.getImplementationClass())); + if (processor != null) { + staxProcessors.removeArtifactProcessor(processor); + } + } + } + } + + private void addImplementationProvider(final ImplementationActivator implementationActivator, ProviderFactoryExtensionPoint providerFactories) { + + providerFactories.addProviderFactory(new ImplementationProviderFactory() { + public ImplementationProvider createImplementationProvider(final RuntimeComponent rc, final Implementation impl) { + if (impl instanceof PojoImplementation) { + return new ImplementationImplementationProvider(implementationActivator, rc, impl, ((PojoImplementation)impl).getUserImpl()); + } else { + return new ImplementationImplementationProvider(implementationActivator, rc, impl, impl); + } + } + public Class getModelType() { + Class c = implementationActivator.getImplementationClass(); + + if (Implementation.class.isAssignableFrom(c)) { + return c; + } else { + return PojoImplementation.class; + } + } + }); + } + + protected QName getSCDLQName(Class implementationClass) { + String localName = implementationClass.getName(); + if (localName.lastIndexOf('.') > -1) { + localName = localName.substring(localName.lastIndexOf('.') + 1); + } + if (localName.endsWith("Implementation")) { + localName = localName.substring(0, localName.length() - 14); + } + StringBuilder sb = new StringBuilder(localName); + for (int i=0; i<sb.length(); i++) { + if (Character.isUpperCase(sb.charAt(i))) { + sb.setCharAt(i, Character.toLowerCase(sb.charAt(i))); + } else { + break; + } + } + return new QName(Constants.SCA10_TUSCANY_NS, "implementation." + sb.toString()); + } + +} |