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 */
017package org.apache.camel.impl.scan;
018
019import java.lang.annotation.Annotation;
020
021import org.apache.camel.spi.PackageScanFilter;
022import org.apache.camel.util.ObjectHelper;
023
024/**
025 * Package scan filter for testing if a given class is annotated with a certain annotation.
026 */
027public class AnnotatedWithPackageScanFilter implements PackageScanFilter {
028
029    private Class<? extends Annotation> annotation;
030    private boolean checkMetaAnnotations;
031
032    public AnnotatedWithPackageScanFilter(Class<? extends Annotation> annotation) {
033        this(annotation, false);
034    }
035
036    public AnnotatedWithPackageScanFilter(Class<? extends Annotation> annotation, boolean checkMetaAnnotations) {
037        this.annotation = annotation;
038        this.checkMetaAnnotations = checkMetaAnnotations;
039    }
040
041    public boolean matches(Class<?> type) {
042        return type != null && ObjectHelper.hasAnnotation(type, annotation, checkMetaAnnotations);
043    }
044
045    @Override
046    public String toString() {
047        return "annotated with @" + annotation.getSimpleName();
048    }
049}