/**
* 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.camel.dataformat.bindy.util;
import java.lang.annotation.Annotation;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.Set;
import org.apache.camel.dataformat.bindy.annotation.CsvRecord;
import org.apache.camel.dataformat.bindy.annotation.FixedLengthRecord;
import org.apache.camel.dataformat.bindy.annotation.Link;
import org.apache.camel.dataformat.bindy.annotation.Message;
import org.apache.camel.dataformat.bindy.annotation.Section;
import org.apache.camel.spi.PackageScanClassResolver;
import org.apache.camel.spi.PackageScanFilter;
/**
* Annotation based loader for model classes with Bindy annotations.
*/
public class AnnotationModelLoader {
private PackageScanClassResolver resolver;
private PackageScanFilter filter;
private Set<Class<? extends Annotation>> annotations;
public AnnotationModelLoader(PackageScanClassResolver resolver) {
this.resolver = resolver;
annotations = new LinkedHashSet<Class<? extends Annotation>>();
annotations.add(CsvRecord.class);
annotations.add(Link.class);
annotations.add(Message.class);
annotations.add(Section.class);
annotations.add(FixedLengthRecord.class);
}
public AnnotationModelLoader(PackageScanClassResolver resolver, PackageScanFilter filter) {
this(resolver);
this.filter = filter;
}
public Set<Class<?>> loadModels(String... packageNames) throws Exception {
Set<Class<?>> results = resolver.findAnnotated(annotations, packageNames);
//TODO; this logic could be moved into the PackageScanClassResolver by creating:
// findAnnotated(annotations, packageNames, filter)
Set<Class<?>> resultsToRemove = new HashSet<Class<?>>();
if (filter != null) {
for (Class<?> clazz : results) {
if (!filter.matches(clazz)) {
resultsToRemove.add(clazz);
}
}
}
results.removeAll(resultsToRemove);
return results;
}
}