diff options
Diffstat (limited to 'tags/java-M1-20060518/java/sca/core/src/main/java/org/apache/tuscany/core/loader/assembly/ComponentLoader.java')
| -rw-r--r-- | tags/java-M1-20060518/java/sca/core/src/main/java/org/apache/tuscany/core/loader/assembly/ComponentLoader.java | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/tags/java-M1-20060518/java/sca/core/src/main/java/org/apache/tuscany/core/loader/assembly/ComponentLoader.java b/tags/java-M1-20060518/java/sca/core/src/main/java/org/apache/tuscany/core/loader/assembly/ComponentLoader.java deleted file mode 100644 index 0fa3e7ddeb..0000000000 --- a/tags/java-M1-20060518/java/sca/core/src/main/java/org/apache/tuscany/core/loader/assembly/ComponentLoader.java +++ /dev/null @@ -1,189 +0,0 @@ -/** - * - * Copyright 2005 The Apache Software Foundation - * - * Licensed 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.core.loader.assembly; - -import java.util.List; -import javax.xml.namespace.QName; -import static javax.xml.stream.XMLStreamConstants.END_ELEMENT; -import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; -import javax.xml.stream.XMLStreamException; -import javax.xml.stream.XMLStreamReader; - -import org.apache.tuscany.common.resource.ResourceLoader; -import org.apache.tuscany.core.builder.ObjectFactory; -import org.apache.tuscany.core.config.ConfigurationLoadException; -import org.apache.tuscany.core.loader.InvalidPropertyFactoryException; -import org.apache.tuscany.core.loader.LoaderContext; -import org.apache.tuscany.core.loader.StAXPropertyFactory; -import org.apache.tuscany.core.loader.StAXUtil; -import static org.apache.tuscany.core.loader.assembly.AssemblyConstants.*; -import org.apache.tuscany.core.system.annotation.Autowire; -import org.apache.tuscany.model.assembly.AssemblyObject; -import org.apache.tuscany.model.assembly.Component; -import org.apache.tuscany.model.assembly.ComponentType; -import org.apache.tuscany.model.assembly.ConfiguredProperty; -import org.apache.tuscany.model.assembly.ConfiguredReference; -import org.apache.tuscany.model.assembly.Implementation; -import org.apache.tuscany.model.assembly.OverrideOption; -import org.apache.tuscany.model.assembly.Property; -import org.osoa.sca.annotations.Scope; - -/** - * @version $Rev$ $Date$ - */ -@Scope("MODULE") -public class ComponentLoader extends AbstractLoader { - private StAXPropertyFactory<?> defaultPropertyFactory; - - @Autowire - public void setDefaultPropertyFactory(StAXPropertyFactory<?> defaultPropertyFactory) { - this.defaultPropertyFactory = defaultPropertyFactory; - } - - public QName getXMLType() { - return COMPONENT; - } - - public Component load(XMLStreamReader reader, LoaderContext loaderContext) throws XMLStreamException, ConfigurationLoadException { - assert COMPONENT.equals(reader.getName()); - - Component component = factory.createSimpleComponent(); - component.setName(reader.getAttributeValue(null, "name")); - - while (true) { - switch (reader.next()) { - case START_ELEMENT: - QName name = reader.getName(); - if (PROPERTIES.equals(name)) { - loadProperties(reader, loaderContext.getResourceLoader(), component); - } else if (REFERENCES.equals(name)) { - loadReferences(reader, component); - } else { - AssemblyObject o = registry.load(reader, loaderContext); - if (o instanceof Implementation) { - Implementation impl = (Implementation) o; - impl.initialize(registry.getContext()); - component.setImplementation(impl); - } - } - reader.next(); - break; - case END_ELEMENT: - List<Property> props = component.getImplementation().getComponentType().getProperties(); - for (Property property : props) { - if (property.isRequired()) { - if (component.getConfiguredProperty(property.getName()) == null) { - ConfigurationLoadException e = new ConfigurationLoadException("Required property not configured"); - e.setIdentifier(property.getName()); - throw e; - } - } - } - return component; - } - } - } - - protected void loadProperties(XMLStreamReader reader, ResourceLoader resourceLoader, Component<?> component) throws XMLStreamException, ConfigurationLoadException { - ComponentType componentType = component.getImplementation().getComponentType(); - List<ConfiguredProperty> configuredProperties = component.getConfiguredProperties(); - - while (true) { - switch (reader.next()) { - case START_ELEMENT: - String name = reader.getLocalName(); - Property property = componentType.getProperty(name); - if (property == null) { - throw new ConfigurationLoadException(name); - } - OverrideOption override = StAXUtil.overrideOption(reader.getAttributeValue(null, "override"), OverrideOption.NO); - -// get a factory for the property - StAXPropertyFactory<?> propertyFactory; - String factoryName = reader.getAttributeValue(null, "factory"); - if (factoryName == null) { - propertyFactory = defaultPropertyFactory; - } else { - propertyFactory = getPropertyFactory(factoryName, resourceLoader); - } - - // create the property value - // FIXME to support complex types we probably should store the factory in the ConfiguredProperty - // FIXME instead of the value as the value may be mutable and should not be shared between instances - ObjectFactory<?> objectFactory = propertyFactory.createObjectFactory(reader, property); - Object value = objectFactory.getInstance(); - - // create the configured property definition - ConfiguredProperty configuredProperty = factory.createConfiguredProperty(); - configuredProperty.setName(name); - configuredProperty.setValue(value); - configuredProperty.setOverrideOption(override); - configuredProperties.add(configuredProperty); - break; - case END_ELEMENT: - return; - } - } - } - - protected StAXPropertyFactory<?> getPropertyFactory(String factoryName, ResourceLoader resourceLoader) throws InvalidPropertyFactoryException { - Class<?> impl; - try { - // try to load factory from application classloader - impl = resourceLoader.loadClass(factoryName); - } catch (ClassNotFoundException e) { - try { - // try to load factory from container classloader - impl = Class.forName(factoryName); - } catch (ClassNotFoundException e1) { - throw new InvalidPropertyFactoryException(factoryName, e); - } - } - try { - return (StAXPropertyFactory<?>) impl.newInstance(); - } catch (InstantiationException e) { - throw new InvalidPropertyFactoryException(factoryName, e); - } catch (IllegalAccessException e) { - throw new InvalidPropertyFactoryException(factoryName, e); - } catch (ClassCastException e) { - throw new InvalidPropertyFactoryException(factoryName, e); - } - } - - protected void loadReferences(XMLStreamReader reader, Component<?> component) throws XMLStreamException { - List<ConfiguredReference> configuredReferences = component.getConfiguredReferences(); - while (true) { - switch (reader.next()) { - case START_ELEMENT: - String name = reader.getLocalName(); - String uri = reader.getElementText(); - - ConfiguredReference configuredReference = component.getConfiguredReference(name); - if (configuredReference == null) { - configuredReference = factory.createConfiguredReference(); - configuredReference.setName(name); - configuredReferences.add(configuredReference); - } - - configuredReference.getTargets().add(uri); - break; - case END_ELEMENT: - return; - } - } - } -} |