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/*
 * Copyright 2022 the original author or 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 *

* https://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.openrewrite.java.search; import lombok.EqualsAndHashCode; import lombok.Value; import org.jspecify.annotations.Nullable; import org.openrewrite.*; import org.openrewrite.java.marker.JavaVersion; import org.openrewrite.marker.SearchResult; import org.openrewrite.semver.Semver; import org.openrewrite.semver.VersionComparator; import static java.util.Objects.requireNonNull; @Value @EqualsAndHashCode(callSuper = false) public class HasJavaVersion extends Recipe { @Option(displayName = "Java version", description = "An exact version number or node-style semver selector used to select the version number.", example = "17.X") String version; @Option(displayName = "Version check against target compatibility", description = "The source and target compatibility versions can be different. This option allows you to " + "check against the target compatibility version instead of the source compatibility version.", example = "17.X", required = false) @Nullable Boolean checkTargetCompatibility; @Override public String getDisplayName() { return "Find files compiled at a specific Java version"; } @Override public String getDescription() { return "Finds Java source files matching a particular language level. " + "This is useful especially as a precondition for other recipes."; } @SuppressWarnings("ConstantConditions") @Override public Validated validate() { Validated validated = super.validate(); if (version != null) { validated = validated.and(Semver.validate(version, null)); } return validated; } @Override public TreeVisitor getVisitor() { VersionComparator versionComparator = requireNonNull(Semver.validate(version, null).getValue()); return new TreeVisitor() { @Override public Tree visit(@Nullable Tree tree, ExecutionContext ctx) { if (tree != null) { return tree.getMarkers().findFirst(JavaVersion.class) .filter(version -> versionComparator.isValid(null, Integer.toString( Boolean.TRUE.equals(checkTargetCompatibility) ? version.getMajorReleaseVersion() : version.getMajorVersion()))) .map(version -> SearchResult.found(tree)) .orElse(tree); } return tree; } }; } }