/*
* Copyright 2012-2013 the original author or authors.
*
* 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.springframework.batch.core.configuration.annotation;
import org.springframework.context.annotation.ImportSelector;
import org.springframework.core.annotation.AnnotationAttributes;
import org.springframework.core.type.AnnotationMetadata;
import org.springframework.util.Assert;
/**
* Base {@code Configuration} class providing common structure for enabling and using Spring Batch. Customization is
* available by implementing the {@link BatchConfigurer} interface.
*
* @author Dave Syer
* @since 2.2
* @see EnableBatchProcessing
*/
public class BatchConfigurationSelector implements ImportSelector {
@Override
public String[] selectImports(AnnotationMetadata importingClassMetadata) {
Class<?> annotationType = EnableBatchProcessing.class;
AnnotationAttributes attributes = AnnotationAttributes.fromMap(importingClassMetadata.getAnnotationAttributes(
annotationType.getName(), false));
Assert.notNull(attributes, String.format("@%s is not present on importing class '%s' as expected",
annotationType.getSimpleName(), importingClassMetadata.getClassName()));
String[] imports;
if (attributes.containsKey("modular") && attributes.getBoolean("modular")) {
imports = new String[] { ModularBatchConfiguration.class.getName() };
}
else {
imports = new String[] { SimpleBatchConfiguration.class.getName() };
}
return imports;
}
}