io.sundr.codegen.functions.element.AnnotationMirrorToAnnotationRef Maven / Gradle / Ivy
/**
* Copyright 2015 The original authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**/
package io.sundr.codegen.functions.element;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.AnnotationValue;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.type.TypeMirror;
import io.sundr.codegen.converters.TypeRefTypeVisitor;
import io.sundr.codegen.model.AnnotationRef;
import io.sundr.codegen.model.AnnotationRefBuilder;
import io.sundr.codegen.model.ClassRef;
import io.sundr.codegen.model.TypeRef;
public class AnnotationMirrorToAnnotationRef implements Function {
private static final String EMPTY_PARENTHESIS = "()";
private static final String EMPTY = "";
private final ElementContext context;
public AnnotationMirrorToAnnotationRef(ElementContext context) {
this.context = context;
}
@Override
public AnnotationRef apply(AnnotationMirror item) {
TypeRef annotationType = item.getAnnotationType().accept(new TypeRefTypeVisitor(context), 0);
Map parameters = new HashMap();
if (annotationType instanceof ClassRef) {
for (Map.Entry entry : item.getElementValues()
.entrySet()) {
String key = entry.getKey().toString().replace(EMPTY_PARENTHESIS, EMPTY);
Object value = mapAnnotationValue(entry.getValue().getValue());
parameters.put(key, value);
}
return new AnnotationRefBuilder().withClassRef((ClassRef) annotationType).withParameters(parameters).build();
}
throw new IllegalStateException("Annotation type: [" + annotationType + "] is not a class reference.");
}
private Object mapAnnotationValue(Object value) {
if (value instanceof Collection) {
return ((Collection) value).stream().map(this::mapAnnotationValue).collect(Collectors.toList());
} else if (value instanceof AnnotationMirror) {
return apply((AnnotationMirror) value);
} else if (value instanceof AnnotationValue) {
return ((AnnotationValue) value).getValue();
} else if (value instanceof TypeMirror) {
return context.getTypeMirrorToTypeRef().apply((TypeMirror) value);
} else {
return value;
}
}
}