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/**
*
* Copyright 2006 The Apache Software Foundation or its licensors as applicable
*
* 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.databinding.sdo;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import commonj.sdo.helper.XSDHelper;
import org.apache.tuscany.common.resource.ResourceLoader;
import org.apache.tuscany.core.config.ConfigurationLoadException;
import org.apache.tuscany.core.config.SidefileLoadException;
import org.apache.tuscany.core.loader.LoaderContext;
import org.apache.tuscany.core.loader.StAXUtil;
import org.apache.tuscany.core.loader.assembly.AbstractLoader;
import org.apache.tuscany.core.loader.assembly.AssemblyConstants;
import org.apache.tuscany.model.assembly.AssemblyContext;
import org.apache.tuscany.model.assembly.AssemblyObject;
import org.apache.tuscany.sdo.util.SDOUtil;
import org.osoa.sca.annotations.Scope;
/**
* Loader that handles <import.sdo> elements.
*
* @version $Rev$ $Date$
*/
@Scope("MODULE")
public class ImportSDOLoader extends AbstractLoader {
public static final QName IMPORT_SDO = new QName(AssemblyConstants.SCA_NAMESPACE, "import.sdo");
public QName getXMLType() {
return IMPORT_SDO;
}
public AssemblyObject load(XMLStreamReader reader, LoaderContext loaderContext) throws XMLStreamException, ConfigurationLoadException {
assert IMPORT_SDO.equals(reader.getName());
importFactory(reader, loaderContext);
importWSDLOrXSD(reader, loaderContext);
StAXUtil.skipToEndElement(reader);
return null;
}
private void importFactory(XMLStreamReader reader, LoaderContext loaderContext) throws ConfigurationLoadException {
String factoryName = reader.getAttributeValue(null, "factory");
if (factoryName != null) {
ResourceLoader resourceLoader = loaderContext.getResourceLoader();
ClassLoader oldCL = Thread.currentThread().getContextClassLoader();
try {
// set TCCL as SDO needs it
Thread.currentThread().setContextClassLoader(resourceLoader.getClassLoader());
Class<?> factoryClass = resourceLoader.loadClass(factoryName);
SDOUtil.registerStaticTypes(factoryClass);
} catch (ClassNotFoundException e) {
throw new ConfigurationLoadException(e.getMessage(), e);
} finally {
Thread.currentThread().setContextClassLoader(oldCL);
}
}
}
@SuppressWarnings("deprecation")
private void importWSDLOrXSD(XMLStreamReader reader, LoaderContext loaderContext) throws ConfigurationLoadException {
String location = reader.getAttributeValue(null, "wsdlLocation");
if (location == null)
location = reader.getAttributeValue(null, "schemaLocation");
if (location != null) {
ResourceLoader resourceLoader = loaderContext.getResourceLoader();
URL wsdlURL = resourceLoader.getResource(location);
ClassLoader oldCL = Thread.currentThread().getContextClassLoader();
try {
// Thread.currentThread().setContextClassLoader(resourceLoader.getClassLoader());
InputStream xsdInputStream = wsdlURL.openStream();
try {
AssemblyContext context = registry.getContext();
XSDHelper xsdHelper = SDOUtil.createXSDHelper(context.getTypeHelper());
xsdHelper.define(xsdInputStream, null);
} finally {
xsdInputStream.close();
}
} catch (IOException e) {
SidefileLoadException sfe = new SidefileLoadException(e.getMessage());
sfe.setResourceURI(location);
throw sfe;
} finally {
Thread.currentThread().setContextClassLoader(oldCL);
}
}
}
}
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