001package org.apache.maven.tools.plugin.extractor.annotations.scanner.visitors;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 *   http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import java.util.HashMap;
023import java.util.List;
024import java.util.Map;
025
026import org.apache.maven.tools.plugin.extractor.annotations.scanner.MojoAnnotationsScanner;
027import org.objectweb.asm.AnnotationVisitor;
028import org.objectweb.asm.FieldVisitor;
029import org.objectweb.asm.Opcodes;
030import org.objectweb.asm.Type;
031
032/**
033 * Visitors for fields.
034 *
035 * @author Olivier Lamy
036 * @since 3.0
037 */
038public class MojoFieldVisitor
039    extends FieldVisitor implements MojoParameterVisitor
040{
041    private String fieldName;
042
043    private Map<String, MojoAnnotationVisitor> annotationVisitorMap = new HashMap<>();
044
045    private String className;
046
047    private final List<String> typeParameters;
048
049    MojoFieldVisitor( String fieldName, String className, List<String> typeParameters )
050    {
051        super( Opcodes.ASM9 );
052        this.fieldName = fieldName;
053        this.className = className;
054        this.typeParameters = typeParameters;
055    }
056
057    @Override
058    public Map<String, MojoAnnotationVisitor> getAnnotationVisitorMap()
059    {
060        return annotationVisitorMap;
061    }
062
063    @Override
064    public String getFieldName()
065    {
066        return fieldName;
067    }
068
069    @Override
070    public List<String> getTypeParameters()
071    {
072        return typeParameters;
073    }
074
075    @Override
076    public AnnotationVisitor visitAnnotation( String desc, boolean visible )
077    {
078        String annotationClassName = Type.getType( desc ).getClassName();
079        if ( !MojoAnnotationsScanner.FIELD_LEVEL_ANNOTATIONS.contains( annotationClassName ) )
080        {
081            return null;
082        }
083        MojoAnnotationVisitor mojoAnnotationVisitor = new MojoAnnotationVisitor( annotationClassName );
084        annotationVisitorMap.put( annotationClassName, mojoAnnotationVisitor );
085        return mojoAnnotationVisitor;
086    }
087
088    @Override
089    public String getClassName()
090    {
091        return className;
092    }
093
094    @Override
095    public boolean isAnnotationOnMethod()
096    {
097        return false;
098    }
099}