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/*
* 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.core.loader;
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 static org.osoa.sca.Constants.SCA_NS;
import org.osoa.sca.annotations.Constructor;
import org.osoa.sca.annotations.Reference;
import org.apache.tuscany.spi.deployer.DeploymentContext;
import org.apache.tuscany.spi.extension.LoaderExtension;
import org.apache.tuscany.spi.loader.LoaderException;
import org.apache.tuscany.spi.loader.LoaderRegistry;
import org.apache.tuscany.spi.model.ComponentType;
import org.apache.tuscany.spi.model.ModelObject;
import org.apache.tuscany.spi.model.Property;
import org.apache.tuscany.spi.model.ReferenceDefinition;
import org.apache.tuscany.spi.model.ServiceDefinition;
/**
* @version $Rev$ $Date$
*/
public class ComponentTypeElementLoader extends LoaderExtension<ComponentType> {
public static final QName COMPONENT_TYPE = new QName(SCA_NS, "componentType");
@Constructor
public ComponentTypeElementLoader(@Reference LoaderRegistry registry) {
super(registry);
}
public QName getXMLType() {
return COMPONENT_TYPE;
}
@SuppressWarnings("unchecked")
public ComponentType load(ModelObject object, XMLStreamReader reader, DeploymentContext context)
throws XMLStreamException, LoaderException {
assert COMPONENT_TYPE.equals(reader.getName());
ComponentType<ServiceDefinition, ReferenceDefinition, Property<?>> componentType;
if (object != null) {
assert object instanceof ComponentType;
// a specialized component type was passed in
componentType = (ComponentType<ServiceDefinition, ReferenceDefinition, Property<?>>) object;
} else {
componentType = new ComponentType<ServiceDefinition, ReferenceDefinition, Property<?>>();
}
while (true) {
switch (reader.next()) {
case START_ELEMENT:
ModelObject o = registry.load(componentType, reader, context);
if (o instanceof ServiceDefinition) {
componentType.add((ServiceDefinition) o);
} else if (o instanceof ReferenceDefinition) {
componentType.add((ReferenceDefinition) o);
} else if (o instanceof Property) {
componentType.add((Property<?>) o);
}
break;
case END_ELEMENT:
return componentType;
}
}
}
}
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