gson-compile/gson-compile-processor-core/src/main/java/io/gitlab/jfronny/gson/compile/processor/core/AbstractProcessor2.java

package io.gitlab.jfronny.gson.compile.processor.core;

import io.gitlab.jfronny.gson.compile.processor.core.value.ValueCreator;

import javax.annotation.processing.*;
import javax.lang.model.util.Elements;
import java.util.*;
import java.util.stream.Collectors;

public abstract class AbstractProcessor2 extends AbstractProcessor {
    protected Messager message;
    protected Filer filer;
    protected ValueCreator valueCreator;
    protected Elements elements;
    protected boolean hasManifold = false;

    @Override
    public synchronized void init(ProcessingEnvironment processingEnv) {
        super.init(processingEnv);
        try {
            Class.forName("manifold.ext.Model");
            System.out.println("Detected manifold!");
            hasManifold = true;
        } catch (ClassNotFoundException e) {
            hasManifold = false;
        }
        message = processingEnv.messager;
        filer = processingEnv.filer;
        elements = processingEnv.elementUtils;
        valueCreator = new ValueCreator(processingEnv);
    }

    @Override
    public Set<String> getSupportedAnnotationTypes() {
        return Optional.ofNullable(this.getClass().getAnnotation(SupportedAnnotationTypes.class))
                .map(SupportedAnnotationTypes::value)
                .map(Set::of)
                .or(() -> Optional.ofNullable(this.getClass().getAnnotation(SupportedAnnotationTypes2.class))
                        .map(SupportedAnnotationTypes2::value)
                        .map(Arrays::stream)
                        .map(s -> s.map(Class::getCanonicalName).collect(Collectors.toSet()))
                ).orElse(Set.of());
    }
}