diff options
Diffstat (limited to 'sca-java-1.x/tags/1.5.1-RC3/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java')
-rw-r--r-- | sca-java-1.x/tags/1.5.1-RC3/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java | 509 |
1 files changed, 0 insertions, 509 deletions
diff --git a/sca-java-1.x/tags/1.5.1-RC3/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java b/sca-java-1.x/tags/1.5.1-RC3/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java deleted file mode 100644 index df46af121c..0000000000 --- a/sca-java-1.x/tags/1.5.1-RC3/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java +++ /dev/null @@ -1,509 +0,0 @@ -/* - * 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.provider; - -import java.lang.reflect.Constructor; -import java.util.ArrayList; -import java.util.HashMap; -import java.util.List; -import java.util.Map; -import java.util.Set; - -import org.apache.tuscany.sca.assembly.Binding; -import org.apache.tuscany.sca.assembly.Implementation; -import org.apache.tuscany.sca.core.ExtensionPointRegistry; -import org.apache.tuscany.sca.extensibility.ServiceDeclaration; -import org.apache.tuscany.sca.extensibility.ServiceDiscovery; -import org.apache.tuscany.sca.runtime.RuntimeComponent; -import org.apache.tuscany.sca.runtime.RuntimeComponentReference; -import org.apache.tuscany.sca.runtime.RuntimeComponentService; - -/** - * Default implementation of a provider factory extension point. - * - * @version $Rev$ $Date$ - */ -public class DefaultProviderFactoryExtensionPoint implements ProviderFactoryExtensionPoint { - - private ExtensionPointRegistry registry; - private final Map<Class<?>, ProviderFactory> providerFactories = new HashMap<Class<?>, ProviderFactory>(); - private final List<PolicyProviderFactory> policyProviderFactories = new ArrayList<PolicyProviderFactory>(); - private boolean loaded; - - /** - * The default constructor. Does nothing. - * - */ - public DefaultProviderFactoryExtensionPoint(ExtensionPointRegistry registry) { - this.registry = registry; - } - - /** - * Add a provider factory. - * - * @param providerFactory The provider factory - */ - public void addProviderFactory(ProviderFactory providerFactory) { - if(providerFactory instanceof PolicyProviderFactory) { - policyProviderFactories.add((PolicyProviderFactory)providerFactory); - } - providerFactories.put(providerFactory.getModelType(), providerFactory); - } - - /** - * Remove a provider factory. - * - * @param providerFactory The provider factory - */ - public void removeProviderFactory(ProviderFactory providerFactory) { - if(providerFactory instanceof PolicyProviderFactory) { - policyProviderFactories.remove((PolicyProviderFactory)providerFactory); - } - providerFactories.remove(providerFactory.getModelType()); - } - - /** - * Returns the provider factory associated with the given model type. - * @param modelType A model type - * @return The provider factory associated with the given model type - */ - public ProviderFactory getProviderFactory(Class<?> modelType) { - loadProviderFactories(); - - Class<?>[] classes = modelType.getInterfaces(); - for (Class<?> c : classes) { - ProviderFactory factory = providerFactories.get(c); - if (factory != null) { - return factory; - } - } - return providerFactories.get(modelType); - } - - public List<PolicyProviderFactory> getPolicyProviderFactories() { - loadProviderFactories(); - return policyProviderFactories; - } - - /** - * Load provider factories declared under META-INF/services. - * @param registry - */ - private synchronized void loadProviderFactories() { - if (loaded) - return; - - loadProviderFactories(BindingProviderFactory.class); - loadProviderFactories(ImplementationProviderFactory.class); - loadProviderFactories(PolicyProviderFactory.class); - loadProviderFactories(WireFormatProviderFactory.class); - loadProviderFactories(OperationSelectorProviderFactory.class); - - loaded = true; - } - - /** - * Load provider factories declared under META-INF/services. - * @param registry - * @param factoryClass - * @return - */ - private List<ProviderFactory> loadProviderFactories(Class<?> factoryClass) { - - // Get the provider factory service declarations - Set<ServiceDeclaration> factoryDeclarations; - ServiceDiscovery serviceDiscovery = ServiceDiscovery.getInstance(); - try { - factoryDeclarations = serviceDiscovery.getServiceDeclarations(factoryClass); - } catch (Exception e) { - throw new IllegalStateException(e); - } - - // Get the target extension point - ProviderFactoryExtensionPoint factoryExtensionPoint = - registry.getExtensionPoint(ProviderFactoryExtensionPoint.class); - List<ProviderFactory> factories = new ArrayList<ProviderFactory>(); - - for (ServiceDeclaration factoryDeclaration : factoryDeclarations) { - Map<String, String> attributes = factoryDeclaration.getAttributes(); - - // Load an implementation provider factory - if (factoryClass == ImplementationProviderFactory.class) { - String modelTypeName = attributes.get("model"); - - // Create a provider factory wrapper and register it - ImplementationProviderFactory factory = - new LazyImplementationProviderFactory(registry, modelTypeName, factoryDeclaration); - factoryExtensionPoint.addProviderFactory(factory); - factories.add(factory); - - } else if (factoryClass == BindingProviderFactory.class) { - - // Load a binding provider factory - String modelTypeName = attributes.get("model"); - - // Create a provider factory wrapper and register it - BindingProviderFactory factory = - new LazyBindingProviderFactory(registry, modelTypeName, factoryDeclaration); - factoryExtensionPoint.addProviderFactory(factory); - factories.add(factory); - } else if (factoryClass == PolicyProviderFactory.class) { - // Load a policy provider factory - String modelTypeName = attributes.get("model"); - - // Create a provider factory wrapper and register it - PolicyProviderFactory factory = - new LazyPolicyProviderFactory(registry, modelTypeName, factoryDeclaration); - factoryExtensionPoint.addProviderFactory(factory); - factories.add(factory); - } else if (factoryClass == WireFormatProviderFactory.class) { - - // Load a wire format provider factory - String modelTypeName = attributes.get("model"); - - // Create a provider factory wrapper and register it - WireFormatProviderFactory factory = - new LazyWireFormatProviderFactory(registry, modelTypeName, factoryDeclaration); - factoryExtensionPoint.addProviderFactory(factory); - factories.add(factory); - } else if (factoryClass == OperationSelectorProviderFactory.class) { - - // Load a wire format provider factory - String modelTypeName = attributes.get("model"); - - // Create a provider factory wrapper and register it - OperationSelectorProviderFactory factory = - new LazyOperationSelectorProviderFactory(registry, modelTypeName, factoryDeclaration); - factoryExtensionPoint.addProviderFactory(factory); - factories.add(factory); - } - } - return factories; - } - - /** - * A wrapper around an implementation provider factory allowing lazy - * loading and initialization of implementation providers. - */ - private static class LazyBindingProviderFactory implements BindingProviderFactory { - - private ExtensionPointRegistry registry; - private String modelTypeName; - private ServiceDeclaration factoryDeclaration; - private BindingProviderFactory factory; - private Class modelType; - - private LazyBindingProviderFactory(ExtensionPointRegistry registry, - String modelTypeName, - ServiceDeclaration factoryDeclaration) { - this.registry = registry; - this.modelTypeName = modelTypeName; - this.factoryDeclaration = factoryDeclaration; - } - - @SuppressWarnings("unchecked") - private BindingProviderFactory getFactory() { - if (factory == null) { - try { - Class<BindingProviderFactory> factoryClass = - (Class<BindingProviderFactory>)factoryDeclaration.loadClass(); - Constructor<BindingProviderFactory> constructor = - factoryClass.getConstructor(ExtensionPointRegistry.class); - factory = constructor.newInstance(registry); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return factory; - } - - @SuppressWarnings("unchecked") - public ReferenceBindingProvider createReferenceBindingProvider(RuntimeComponent component, - RuntimeComponentReference reference, - Binding binding) { - return getFactory().createReferenceBindingProvider(component, reference, binding); - } - - @SuppressWarnings("unchecked") - public ServiceBindingProvider createServiceBindingProvider(RuntimeComponent component, - RuntimeComponentService service, - Binding binding) { - return getFactory().createServiceBindingProvider(component, service, binding); - } - - public Class getModelType() { - if (modelType == null) { - try { - modelType = factoryDeclaration.loadClass(modelTypeName); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return modelType; - } - - } - - /** - * A wrapper around an implementation provider factory allowing lazy - * loading and initialization of implementation providers. - */ - private class LazyImplementationProviderFactory implements ImplementationProviderFactory { - - private ExtensionPointRegistry registry; - private String modelTypeName; - private ServiceDeclaration providerClass; - private ImplementationProviderFactory factory; - private Class modelType; - - private LazyImplementationProviderFactory(ExtensionPointRegistry registry, - String modelTypeName, - ServiceDeclaration providerClass) { - this.registry = registry; - this.modelTypeName = modelTypeName; - this.providerClass = providerClass; - } - - @SuppressWarnings("unchecked") - private ImplementationProviderFactory getFactory() { - if (factory == null) { - try { - Class<ImplementationProviderFactory> factoryClass = - (Class<ImplementationProviderFactory>)providerClass.loadClass(); - Constructor<ImplementationProviderFactory> constructor = - factoryClass.getConstructor(ExtensionPointRegistry.class); - factory = constructor.newInstance(registry); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return factory; - } - - @SuppressWarnings("unchecked") - public ImplementationProvider createImplementationProvider(RuntimeComponent component, - Implementation Implementation) { - return getFactory().createImplementationProvider(component, Implementation); - } - - public Class getModelType() { - if (modelType == null) { - try { - - modelType = providerClass.loadClass(modelTypeName); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return modelType; - } - - } - - /** - * A wrapper around an policy provider factory allowing lazy - * loading and initialization of policy providers. - */ - private class LazyPolicyProviderFactory implements PolicyProviderFactory { - private ExtensionPointRegistry registry; - private String modelTypeName; - private ServiceDeclaration providerClass; - private PolicyProviderFactory factory; - private Class modelType; - - private LazyPolicyProviderFactory(ExtensionPointRegistry registry, - String modelTypeName, - ServiceDeclaration providerClass) { - this.registry = registry; - this.modelTypeName = modelTypeName; - this.providerClass = providerClass; - } - - @SuppressWarnings("unchecked") - private PolicyProviderFactory getFactory() { - if (factory == null) { - try { - Class<PolicyProviderFactory> factoryClass = (Class<PolicyProviderFactory>)providerClass.loadClass(); - Constructor<PolicyProviderFactory> constructor = - factoryClass.getConstructor(ExtensionPointRegistry.class); - factory = constructor.newInstance(registry); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return factory; - } - - public PolicyProvider createImplementationPolicyProvider(RuntimeComponent component, - Implementation implementation) { - return getFactory().createImplementationPolicyProvider(component, implementation); - } - - public PolicyProvider createReferencePolicyProvider(RuntimeComponent component, - RuntimeComponentReference reference, - Binding binding) { - return getFactory().createReferencePolicyProvider(component, reference, binding); - } - - public PolicyProvider createServicePolicyProvider(RuntimeComponent component, - RuntimeComponentService service, - Binding binding) { - return getFactory().createServicePolicyProvider(component, service, binding); - } - - public Class getModelType() { - if (modelType == null) { - try { - modelType = providerClass.loadClass(modelTypeName); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return modelType; - } - } - - /** - * A wrapper around a wire format provider factory allowing lazy - * loading and initialization of wire format providers. - */ - private class LazyWireFormatProviderFactory implements WireFormatProviderFactory { - - private ExtensionPointRegistry registry; - private String modelTypeName; - private ServiceDeclaration providerClass; - private WireFormatProviderFactory factory; - private Class modelType; - - private LazyWireFormatProviderFactory(ExtensionPointRegistry registry, - String modelTypeName, - ServiceDeclaration providerClass) { - this.registry = registry; - this.modelTypeName = modelTypeName; - this.providerClass = providerClass; - } - - @SuppressWarnings("unchecked") - private WireFormatProviderFactory getFactory() { - if (factory == null) { - try { - Class<WireFormatProviderFactory> factoryClass = - (Class<WireFormatProviderFactory>)providerClass.loadClass(); - Constructor<WireFormatProviderFactory> constructor = - factoryClass.getConstructor(ExtensionPointRegistry.class); - factory = constructor.newInstance(registry); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return factory; - } - - @SuppressWarnings("unchecked") - public WireFormatProvider createReferenceWireFormatProvider(RuntimeComponent component, - RuntimeComponentReference reference, - Binding binding){ - return getFactory().createReferenceWireFormatProvider(component, reference, binding); - } - - @SuppressWarnings("unchecked") - public WireFormatProvider createServiceWireFormatProvider(RuntimeComponent component, - RuntimeComponentService service, - Binding binding){ - return getFactory().createServiceWireFormatProvider(component, service, binding); - } - - public Class getModelType() { - if (modelType == null) { - try { - - modelType = providerClass.loadClass(modelTypeName); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return modelType; - } - } - - /** - * A wrapper around a operation selector provider factory allowing lazy - * loading and initialization of operation selector providers. - */ - private class LazyOperationSelectorProviderFactory implements OperationSelectorProviderFactory { - - private ExtensionPointRegistry registry; - private String modelTypeName; - private ServiceDeclaration providerClass; - private OperationSelectorProviderFactory factory; - private Class modelType; - - private LazyOperationSelectorProviderFactory(ExtensionPointRegistry registry, - String modelTypeName, - ServiceDeclaration providerClass) { - this.registry = registry; - this.modelTypeName = modelTypeName; - this.providerClass = providerClass; - } - - @SuppressWarnings("unchecked") - private OperationSelectorProviderFactory getFactory() { - if (factory == null) { - try { - Class<OperationSelectorProviderFactory> factoryClass = - (Class<OperationSelectorProviderFactory>)providerClass.loadClass(); - Constructor<OperationSelectorProviderFactory> constructor = - factoryClass.getConstructor(ExtensionPointRegistry.class); - factory = constructor.newInstance(registry); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return factory; - } - - @SuppressWarnings("unchecked") - public OperationSelectorProvider createReferenceOperationSelectorProvider(RuntimeComponent component, - RuntimeComponentReference reference, - Binding binding){ - return getFactory().createReferenceOperationSelectorProvider(component, reference, binding); - } - - @SuppressWarnings("unchecked") - public OperationSelectorProvider createServiceOperationSelectorProvider(RuntimeComponent component, - RuntimeComponentService service, - Binding binding){ - return getFactory().createServiceOperationSelectorProvider(component, service, binding); - } - - public Class getModelType() { - if (modelType == null) { - try { - - modelType = providerClass.loadClass(modelTypeName); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return modelType; - } - } - -} |