001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel.dataformat.bindy.util;
018    
019    import java.lang.annotation.Annotation;
020    import java.util.LinkedHashSet;
021    import java.util.Set;
022    
023    import org.apache.camel.dataformat.bindy.annotation.CsvRecord;
024    import org.apache.camel.dataformat.bindy.annotation.FixedLengthRecord;
025    import org.apache.camel.dataformat.bindy.annotation.Link;
026    import org.apache.camel.dataformat.bindy.annotation.Message;
027    import org.apache.camel.dataformat.bindy.annotation.Section;
028    import org.apache.camel.spi.PackageScanClassResolver;
029    
030    /**
031     * Annotation based loader for model classes with Bindy annotations.
032     */
033    public class AnnotationModelLoader {
034    
035        private PackageScanClassResolver resolver;
036        private Set<Class<? extends Annotation>> annotations;
037    
038        public AnnotationModelLoader(PackageScanClassResolver resolver) {
039            this.resolver = resolver;
040    
041            annotations = new LinkedHashSet<Class<? extends Annotation>>();
042            annotations.add(CsvRecord.class);
043            annotations.add(Link.class);
044            annotations.add(Message.class);
045            annotations.add(Section.class);
046            annotations.add(FixedLengthRecord.class);
047        }
048    
049        public Set<Class<?>> loadModels(String... packageNames) throws Exception {
050            return resolver.findAnnotated(annotations, packageNames);
051        }
052    }