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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.net.URL;
import org.apache.tuscany.spi.component.CompositeComponent;
import org.apache.tuscany.spi.deployer.DeploymentContext;
import org.apache.tuscany.spi.extension.ComponentTypeLoaderExtension;
import org.apache.tuscany.spi.loader.LoaderException;
import org.apache.tuscany.spi.model.ComponentType;
/**
* ComponentType loader for script components
*/
public class ScriptComponentTypeLoader extends ComponentTypeLoaderExtension<ScriptImplementation> {
public ScriptComponentTypeLoader() {
}
@Override
protected Class<ScriptImplementation> getImplementationClass() {
return ScriptImplementation.class;
}
public void load(CompositeComponent parent,
ScriptImplementation implementation,
DeploymentContext deploymentContext) throws LoaderException {
String sideFile = getSideFileName(implementation.getResourceName());
URL resource = implementation.getClassLoader().getResource(sideFile);
ScriptComponentType componentType;
if (resource == null) {
throw new MissingSideFileException("Component type side file not found", sideFile);
// TODO: or else implement introspection
} else {
componentType = loadFromSidefile(parent, resource, deploymentContext);
}
implementation.setComponentType(componentType);
}
@SuppressWarnings("unchecked")
protected ScriptComponentType loadFromSidefile(CompositeComponent parent,
URL url,
DeploymentContext deploymentContext)
throws LoaderException {
ScriptComponentType scriptComponentType = new ScriptComponentType();
return (ScriptComponentType) loaderRegistry
.load(parent, scriptComponentType, url, ComponentType.class, deploymentContext);
}
protected String getSideFileName(String resourceName) {
int lastDot = resourceName.lastIndexOf('.');
if (lastDot != -1) {
resourceName = resourceName.substring(0, lastDot);
}
return resourceName + ".componentType";
}
}
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