/*
* Copyright (c) 2010-2014. Axon Framework
*
* 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.axonframework.test.utils;
import org.axonframework.common.ReflectionUtils;
import org.axonframework.saga.ResourceInjector;
import org.axonframework.saga.Saga;
import org.axonframework.test.FixtureExecutionException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import static org.axonframework.common.ReflectionUtils.methodsOf;
/**
* Resource injector that uses setter methods to inject resources. All methods starting with "set" are evaluated. If
* that method has a single parameter, a Resource of that type is injected into it, if present.
*
* @author Allard Buijze
* @since 1.1
*/
public class AutowiredResourceInjector implements ResourceInjector {
private Iterable<?> resources;
/**
* Initializes the resource injector to inject to given <code>resources</code>.
*
* @param resources The resources to inject
*/
public AutowiredResourceInjector(Iterable<?> resources) {
this.resources = resources;
}
@Override
public void injectResources(Saga saga) {
for (Method method : methodsOf(saga.getClass())) {
if (isSetter(method)) {
Class<?> requiredType = method.getParameterTypes()[0];
for (Object resource : resources) {
if (requiredType.isInstance(resource)) {
injectResource(saga, method, resource);
}
}
}
}
}
private void injectResource(Saga saga, Method setterMethod, Object resource) {
try {
ReflectionUtils.ensureAccessible(setterMethod);
setterMethod.invoke(saga, resource);
} catch (IllegalAccessException e) {
throw new FixtureExecutionException("An exception occurred while trying to inject a resource", e);
} catch (InvocationTargetException e) {
throw new FixtureExecutionException("An exception occurred while trying to inject a resource", e);
}
}
private boolean isSetter(Method method) {
return method.getParameterTypes().length == 1 && method.getName().startsWith("set");
}
}