001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.maven.tools.plugin.extractor.annotations.scanner.visitors;
020
021import java.util.HashMap;
022import java.util.List;
023import java.util.Map;
024
025import org.apache.maven.tools.plugin.extractor.annotations.scanner.MojoAnnotationsScanner;
026import org.objectweb.asm.AnnotationVisitor;
027import org.objectweb.asm.FieldVisitor;
028import org.objectweb.asm.Opcodes;
029import org.objectweb.asm.Type;
030
031/**
032 * Visitors for fields.
033 *
034 * @author Olivier Lamy
035 * @since 3.0
036 */
037public class MojoFieldVisitor extends FieldVisitor implements MojoParameterVisitor {
038    private String fieldName;
039
040    private Map<String, MojoAnnotationVisitor> annotationVisitorMap = new HashMap<>();
041
042    private String className;
043
044    private final List<String> typeParameters;
045
046    MojoFieldVisitor(String fieldName, String className, List<String> typeParameters) {
047        super(Opcodes.ASM9);
048        this.fieldName = fieldName;
049        this.className = className;
050        this.typeParameters = typeParameters;
051    }
052
053    @Override
054    public Map<String, MojoAnnotationVisitor> getAnnotationVisitorMap() {
055        return annotationVisitorMap;
056    }
057
058    @Override
059    public String getFieldName() {
060        return fieldName;
061    }
062
063    @Override
064    public List<String> getTypeParameters() {
065        return typeParameters;
066    }
067
068    @Override
069    public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
070        String annotationClassName = Type.getType(desc).getClassName();
071        if (!MojoAnnotationsScanner.FIELD_LEVEL_ANNOTATIONS.contains(annotationClassName)) {
072            return null;
073        }
074        MojoAnnotationVisitor mojoAnnotationVisitor = new MojoAnnotationVisitor(annotationClassName);
075        annotationVisitorMap.put(annotationClassName, mojoAnnotationVisitor);
076        return mojoAnnotationVisitor;
077    }
078
079    @Override
080    public String getClassName() {
081        return className;
082    }
083
084    @Override
085    public boolean isAnnotationOnMethod() {
086        return false;
087    }
088}