/*
* Copyright 2005 Werner Guttmann
*
* 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.castor.mapping;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.exolab.castor.mapping.MappingException;
import org.exolab.castor.mapping.MappingLoader;
/**
* Abstract base class for MappingLoaderFactory instances
*
* @author me
*
*/
public abstract class AbstractMappingLoaderFactory implements
MappingLoaderFactory {
/**
* The <a href="http://jakarta.apache.org/commons/logging/">Jakarta Commons
* Logging </a> instance used for all logging.
*/
public static final Log LOG = LogFactory
.getLog(AbstractMappingLoaderFactory.class);
/**
* Source type definition
*/
private static final String SOURCE_TYPE = "CastorXmlMapping";
/**
* @inheritDoc
* @see org.castor.mapping.MappingLoaderFactory#getSourceType()
*/
public final String getSourceType() {
return SOURCE_TYPE;
}
/**
* To obtain the class name of the MappingLoader to instantiate
*
* @return The class name of the MappingLoader to instantiate
*/
public abstract String getClassname();
/**
* @inheritDoc
* @see org.castor.mapping.MappingLoaderFactory#getMappingLoader()
*/
public final MappingLoader getMappingLoader() throws MappingException {
MappingLoader mappingLoader = null;
try {
ClassLoader loader = getClass().getClassLoader();
Class cls = loader.loadClass(getClassname());
Class[] types = new Class[] {ClassLoader.class};
Object[] args = new Object[] {loader};
mappingLoader = (MappingLoader) cls.getConstructor(types).newInstance(args);
} catch (Exception ex) {
LOG.error(
"Problem instantiating mapping loader factory implementation: "
+ getClassname(), ex);
}
return mappingLoader;
}
}