001/*
002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bstefanescu
018 */
019package org.nuxeo.ecm.webengine.jaxrs.scan;
020
021import java.util.ArrayList;
022import java.util.List;
023import java.util.Set;
024
025import org.objectweb.asm.AnnotationVisitor;
026import org.objectweb.asm.ClassVisitor;
027import org.objectweb.asm.Opcodes;
028
029/**
030 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
031 */
032public class AnnotationReader extends ClassVisitor {
033
034    protected Set<String> annotations;
035
036    protected List<String> results;
037
038    protected String cname;
039
040    public AnnotationReader(Set<String> annotations) {
041        super(Opcodes.ASM7);
042        results = new ArrayList<>();
043        this.annotations = annotations;
044    }
045
046    public String getClassName() {
047        return cname.replace('/', '.');
048    }
049
050    public String getFileName() {
051        return cname;
052    }
053
054    public List<String> getResults() {
055        return results;
056    }
057
058    public boolean hasResults() {
059        return !results.isEmpty();
060    }
061
062    @Override
063    public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
064        cname = name;
065    }
066
067    @Override
068    public AnnotationVisitor visitAnnotation(String arg0, boolean arg1) {
069        if (annotations.contains(arg0)) {
070            results.add(arg0);
071        }
072        return null;
073    }
074
075}