001package ball.annotation.processing;
002/*-
003 * ##########################################################################
004 * Utilities
005 * %%
006 * Copyright (C) 2008 - 2022 Allen D. Ball
007 * %%
008 * Licensed under the Apache License, Version 2.0 (the "License");
009 * you may not use this file except in compliance with the License.
010 * 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, software
015 * distributed under the License is distributed on an "AS IS" BASIS,
016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
017 * See the License for the specific language governing permissions and
018 * limitations under the License.
019 * ##########################################################################
020 */
021import ball.annotation.ServiceProviderFor;
022import ball.util.ant.taskdefs.AntTaskAttributeConstraint;
023import ball.util.ant.taskdefs.NotEmpty;
024import ball.util.ant.taskdefs.NotNull;
025import javax.annotation.processing.Processor;
026import javax.annotation.processing.RoundEnvironment;
027import javax.lang.model.element.Element;
028import javax.lang.model.element.ExecutableElement;
029import javax.lang.model.element.TypeElement;
030import lombok.NoArgsConstructor;
031import lombok.ToString;
032
033import static javax.tools.Diagnostic.Kind.ERROR;
034
035/**
036 * {@link AntTaskAttributeConstraint} {@link Processor}
037 *
038 * @author {@link.uri mailto:ball@hcf.dev Allen D. Ball}
039 */
040@ServiceProviderFor({ Processor.class })
041@For({ AntTaskAttributeConstraint.class, NotEmpty.class, NotNull.class })
042@NoArgsConstructor @ToString
043public class AntTaskAttributeConstraintProcessor extends AnnotatedProcessor {
044    @Override
045    public void process(RoundEnvironment roundEnv, TypeElement annotation, Element element) {
046        super.process(roundEnv, annotation, element);
047
048        switch (element.getKind()) {
049        case ANNOTATION_TYPE:
050        case FIELD:
051        default:
052            break;
053
054        case METHOD:
055            if (! isGetterMethod((ExecutableElement) element)) {
056                print(ERROR, element,
057                      "@%s: %s is not a property getter",
058                      annotation.getSimpleName(), element.getKind());
059            }
060            break;
061        }
062    }
063}