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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.container.script;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.apache.tuscany.spi.builder.BuilderConfigException;
import org.apache.tuscany.spi.component.Component;
import org.apache.tuscany.spi.component.CompositeComponent;
import org.apache.tuscany.spi.component.ScopeContainer;
import org.apache.tuscany.spi.deployer.DeploymentContext;
import org.apache.tuscany.spi.extension.ComponentBuilderExtension;
import org.apache.tuscany.spi.model.ComponentDefinition;
import org.apache.tuscany.spi.model.PropertyValue;
import org.apache.tuscany.spi.model.Scope;
import org.apache.tuscany.spi.model.ServiceDefinition;
/**
* Extension point for creating {@link ScriptComponent}s from an assembly configuration
*
* @version $Rev$ $Date$
*/
public class ScriptComponentBuilder extends ComponentBuilderExtension<ScriptImplementation> {
public ScriptComponentBuilder() {
}
protected Class<ScriptImplementation> getImplementationType() {
return ScriptImplementation.class;
}
@SuppressWarnings("unchecked")
public Component build(CompositeComponent parent, ComponentDefinition<ScriptImplementation> componentDefinition,
DeploymentContext deploymentContext) throws BuilderConfigException {
String name = componentDefinition.getName();
ScriptImplementation implementation = componentDefinition.getImplementation();
ScriptComponentType componentType = implementation.getComponentType();
// get list of serviceBindings provided by this component
Collection<ServiceDefinition> collection = componentType.getServices().values();
List<Class<?>> services = new ArrayList<Class<?>>(collection.size());
for (ServiceDefinition serviceDefinition : collection) {
services.add(serviceDefinition.getServiceContract().getInterfaceClass());
}
// TODO: have ComponentBuilderExtension pass ScopeContainer in on build method?
ScopeContainer scopeContainer;
Scope scope = componentType.getLifecycleScope();
if (Scope.COMPOSITE == scope) {
scopeContainer = deploymentContext.getCompositeScope();
} else {
scopeContainer = scopeRegistry.getScopeContainer(scope);
}
String className = implementation.getClassName();
String scriptSource = implementation.getScriptSource();
String scriptName = implementation.getScriptName();
ClassLoader cl = implementation.getClassLoader();
ScriptInstanceFactory instanceFactory =
new ScriptInstanceFactory(scriptName, className, scriptSource, cl);
// get the properties for the component
for (PropertyValue propertyValue : componentDefinition.getPropertyValues().values()) {
//TODO this is not safe for since multiple instances can share mutable properties
instanceFactory.addContextObjectFactory(propertyValue.getName(), propertyValue.getValueFactory());
}
ComponentConfiguration config = new ComponentConfiguration();
config.setName(name);
config.setFactory(instanceFactory);
config.setServices(services);
config.setParent(parent);
config.setScopeContainer(scopeContainer);
config.setWireService(wireService);
config.setWorkContext(workContext);
config.setWorkScheduler(workScheduler);
return new ScriptComponent(config);
}
}
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