org.openrewrite.maven.AddPropertyVisitor Maven / Gradle / Ivy

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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.maven;

import lombok.EqualsAndHashCode;
import lombok.Value;
import org.jspecify.annotations.Nullable;
import org.openrewrite.ExecutionContext;
import org.openrewrite.xml.AddToTagVisitor;
import org.openrewrite.xml.ChangeTagValueVisitor;
import org.openrewrite.xml.TagNameComparator;
import org.openrewrite.xml.tree.Xml;

import java.util.Optional;

@Value
@EqualsAndHashCode(callSuper = false)
public class AddPropertyVisitor extends MavenIsoVisitor {
    String key;
    String value;

    @Nullable Boolean preserveExistingValue;

    @Override
    public Xml.Document visitDocument(Xml.Document document, ExecutionContext ctx) {
        Xml.Document d = super.visitDocument(document, ctx);
        Xml.Tag root = d.getRoot();
        Optional properties = root.getChild("properties");
        if (!properties.isPresent()) {
            Xml.Tag propertiesTag = Xml.Tag.build("\n<" + key + ">" + value + "\n");
            d = (Xml.Document) new AddToTagVisitor(root, propertiesTag, new MavenTagInsertionComparator(root.getChildren())).visitNonNull(d, ctx);
        } else if (!properties.get().getChildValue(key).isPresent()) {
            Xml.Tag propertyTag = Xml.Tag.build("<" + key + ">" + value + "");
            d = (Xml.Document) new AddToTagVisitor<>(properties.get(), propertyTag, new TagNameComparator()).visitNonNull(d, ctx);
        }
        if (d != document) {
            maybeUpdateModel();
        }
        return d;
    }

    @Override
    public Xml.Tag visitTag(Xml.Tag tag, ExecutionContext ctx) {
        if (!Boolean.TRUE.equals(preserveExistingValue) &&
            isPropertyTag() && key.equals(tag.getName()) &&
            !value.equals(tag.getValue().orElse(null))) {
            doAfterVisit(new ChangeTagValueVisitor<>(tag, value));
        }
        return super.visitTag(tag, ctx);
    }
}