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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.sca.wicket;
import java.lang.reflect.Field;
import org.apache.tuscany.sca.implementation.web.runtime.utils.ContextHelper;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
import org.apache.wicket.injection.IFieldValueFactory;
import org.oasisopen.sca.annotation.ComponentName;
import org.oasisopen.sca.annotation.Context;
import org.oasisopen.sca.annotation.Property;
import org.oasisopen.sca.annotation.Reference;
public class TuscanyFieldValueFactory implements IFieldValueFactory {
private IContextLocator contextLocator;
public TuscanyFieldValueFactory(IContextLocator contextLocator) {
this.contextLocator = contextLocator;
}
public Object getFieldValue(Field field, Object instance) {
Object value = null;
if (field.isAnnotationPresent(Reference.class)) {
Reference ref = field.getAnnotation(Reference.class);
String name = ref.name() != null && !ref.name().equals("") ? ref.name() : field.getName();
value = ContextHelper.getReference(name, field.getType(), contextLocator.getServletContext());
} else if (field.isAnnotationPresent(Property.class)) {
Property prop = field.getAnnotation(Property.class);
String name = prop.name() != null && !prop.name().equals("") ? prop.name() : field.getName();
value = ContextHelper.getProperty(name, contextLocator.getServletContext());
} else if (field.isAnnotationPresent(ComponentName.class)) {
RuntimeComponent rc = (RuntimeComponent)contextLocator.getServletContext().getAttribute(ContextHelper.COMPONENT_ATTR);
value = rc.getName();
} else if (field.isAnnotationPresent(Context.class)) {
value = ContextHelper.getComponentContext(contextLocator.getServletContext());
}
return value;
}
public boolean supportsField(Field field) {
return field.isAnnotationPresent(Reference.class)
|| field.isAnnotationPresent(Property.class)
|| field.isAnnotationPresent(Context.class)
|| field.isAnnotationPresent(ComponentName.class);
}
}
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