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A rewrite module automating best practices and migrations for Concourse

There is a newer version: 2.10.0

/*
 * Copyright 2021 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.concourse;

import lombok.EqualsAndHashCode;
import lombok.Value;
import org.openrewrite.ExecutionContext;
import org.openrewrite.Option;
import org.openrewrite.Recipe;
import org.openrewrite.TreeVisitor;
import org.openrewrite.marker.SearchResult;
import org.openrewrite.yaml.JsonPathMatcher;
import org.openrewrite.yaml.YamlVisitor;
import org.openrewrite.yaml.tree.Yaml;

import java.time.Duration;

@Value
@EqualsAndHashCode(callSuper = false)
public class FindResource extends Recipe {
    @Option(displayName = "Type",
            description = "Resource type",
            example = "git")
    String type;

    @Override
    public String getDisplayName() {
        return "Find resource";
    }

    @Override
    public Duration getEstimatedEffortPerOccurrence() {
        return Duration.ofMinutes(5);
    }

    @Override
    public String getDescription() {
        return "Find a Concourse resource by name.";
    }

    @Override
    public TreeVisitor getVisitor() {
        JsonPathMatcher resource = new JsonPathMatcher("$.resources[*].type");
        return new YamlVisitor() {
            @Override
            public Yaml visitMappingEntry(Yaml.Mapping.Entry entry, ExecutionContext ctx) {
                if (resource.matches(getCursor()) && entry.getValue() instanceof Yaml.Scalar &&
                        ((Yaml.Scalar) entry.getValue()).getValue().equals(type)) {
                    return SearchResult.found(entry);
                }
                return super.visitMappingEntry(entry, ctx);
            }
        };
    }
}