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/**
*
* Copyright 2005 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.core.sdo.helper;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import commonj.sdo.helper.DataFactory;
import commonj.sdo.helper.TypeHelper;
import commonj.sdo.helper.XMLHelper;
import commonj.sdo.helper.XSDHelper;
import org.apache.tuscany.core.builder.ContextResolver;
import org.apache.tuscany.core.builder.ObjectFactory;
import org.apache.tuscany.core.extension.config.InjectorExtensibilityElement;
import org.apache.tuscany.core.injection.FieldInjector;
import org.apache.tuscany.core.injection.Injector;
import org.apache.tuscany.core.injection.MethodInjector;
import org.apache.tuscany.core.injection.ObjectCreationException;
import org.apache.tuscany.core.sdo.DataFactoryObjectFactory;
import org.apache.tuscany.core.sdo.TypeHelperObjectFactory;
import org.apache.tuscany.core.sdo.XMLHelperObjectFactory;
import org.apache.tuscany.core.sdo.XSDHelperObjectFactory;
/**
* @version $$Rev$$ $$Date$$
*/
public class SDOHelperExtensibilityElement implements InjectorExtensibilityElement {
private Method method;
private Field field;
private Class<?> type;
public SDOHelperExtensibilityElement(Method m) {
method = m;
assert(method != null);
assert(method.getParameterTypes().length == 1);
type = method.getParameterTypes()[0];
}
public SDOHelperExtensibilityElement(Field field) {
assert (field != null);
this.field = field;
this.type = field.getType();
}
public Injector<?> getInjector(ContextResolver resolver) {
ObjectFactory<?> factory;
if (TypeHelper.class.equals(type)) {
factory = new TypeHelperObjectFactory(resolver);
} else if (DataFactory.class.equals(type)) {
factory = new DataFactoryObjectFactory(resolver);
} else if (XSDHelper.class.equals(type)) {
factory = new XSDHelperObjectFactory(resolver);
} else if (XMLHelper.class.equals(type)) {
factory = new XMLHelperObjectFactory(resolver);
} else {
ObjectCreationException e = new ObjectCreationException("Unknown type");
e.setIdentifier(type.getName());
throw e;
}
if (method != null) {
return new MethodInjector(method, factory);
}
return new FieldInjector(field, factory);
}
}
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