/*
* Copyright 2014 Lukas Krejci
*
* 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 org.revapi.java.transforms.methods;
import java.io.Reader;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.regex.Pattern;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.lang.model.element.AnnotationValue;
import javax.lang.model.element.ElementKind;
import javax.lang.model.element.ExecutableElement;
import org.revapi.AnalysisContext;
import org.revapi.Difference;
import org.revapi.DifferenceTransform;
import org.revapi.java.spi.Code;
import org.revapi.java.spi.JavaMethodElement;
/**
* @author Lukas Krejci
* @since 0.1
*/
public final class AnnotationTypeAttributeAdded implements DifferenceTransform<JavaMethodElement> {
private Locale locale;
private final Pattern[] codes;
public AnnotationTypeAttributeAdded() {
codes = new Pattern[]{Pattern.compile("^" + Pattern.quote(Code.METHOD_ABSTRACT_METHOD_ADDED.code()) + "$")};
}
@Nonnull
@Override
public Pattern[] getDifferenceCodePatterns() {
return codes;
}
@Nullable
@Override
public String[] getConfigurationRootPaths() {
return null;
}
@Nullable
@Override
public Reader getJSONSchema(@Nonnull String configurationRootPath) {
return null;
}
@Override
public void initialize(@Nonnull AnalysisContext analysisContext) {
locale = analysisContext.getLocale();
}
@Nullable
@Override
public Difference transform(@Nullable JavaMethodElement oldElement, @Nullable JavaMethodElement newElement,
@Nonnull Difference difference) {
@SuppressWarnings("ConstantConditions")
ExecutableElement method = newElement.getDeclaringElement();
if (method.getEnclosingElement().getKind() == ElementKind.ANNOTATION_TYPE) {
AnnotationValue defaultValue = method.getDefaultValue();
if (defaultValue == null) {
return Code.METHOD_ATTRIBUTE_WITH_NO_DEFAULT_ADDED_TO_ANNOTATION_TYPE
.createDifference(locale, new LinkedHashMap<>(difference.attachments));
} else {
return Code.METHOD_ATTRIBUTE_WITH_DEFAULT_ADDED_TO_ANNOTATION_TYPE
.createDifference(locale, new LinkedHashMap<>(difference.attachments));
}
}
return difference;
}
@Override
public void close() {
}
}