org.openrewrite.java.spring.boot2.RestTemplateBuilderRequestFactory Maven / Gradle / Ivy
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/*
* 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.java.spring.boot2;
import org.openrewrite.ExecutionContext;
import org.openrewrite.Preconditions;
import org.openrewrite.Recipe;
import org.openrewrite.TreeVisitor;
import org.openrewrite.java.JavaIsoVisitor;
import org.openrewrite.java.JavaParser;
import org.openrewrite.java.JavaTemplate;
import org.openrewrite.java.MethodMatcher;
import org.openrewrite.java.search.UsesType;
import org.openrewrite.java.tree.J;
import org.openrewrite.java.tree.JavaType;
import org.openrewrite.java.tree.TypeUtils;
public class RestTemplateBuilderRequestFactory extends Recipe {
private static final MethodMatcher REQUEST_FACTORY = new MethodMatcher(
"org.springframework.boot.web.client.RestTemplateBuilder requestFactory(org.springframework.http.client.ClientHttpRequestFactory)");
@Override
public String getDisplayName() {
return "Migrate `RestTemplateBuilder`";
}
@Override
public String getDescription() {
return "Migrate `RestTemplateBuilder#requestFactory` calls to use a `Supplier`. " +
"See the [migration guide](https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.0-Migration-Guide#resttemplatebuilder) for more.";
}
@Override
public TreeVisitor getVisitor() {
return Preconditions.check(new UsesType<>("org.springframework.boot.web.client.RestTemplateBuilder", true),
new RestTemplateBuilderRequestFactoryVisitor());
}
private static class RestTemplateBuilderRequestFactoryVisitor extends JavaIsoVisitor {
@Override
public J.MethodInvocation visitMethodInvocation(J.MethodInvocation method, ExecutionContext ctx) {
J.MethodInvocation m = super.visitMethodInvocation(method, ctx);
// TODO JavaTemplate doesn't replace method type attribution when replacing arguments.
boolean isArgumentClientHttpRequestFactory = method.getArguments().size() == 1 &&
TypeUtils.isAssignableTo(JavaType.ShallowClass.build("org.springframework.http.client.ClientHttpRequestFactory"),
method.getArguments().get(0).getType());
if (REQUEST_FACTORY.matches(method) && isArgumentClientHttpRequestFactory) {
JavaTemplate.Builder t = JavaTemplate.builder("() -> #{any(org.springframework.http.client.ClientHttpRequestFactory)}")
.contextSensitive()
.javaParser(JavaParser.fromJavaVersion()
.classpathFromResources(ctx, "spring-boot-2.*"));
m = t.build().apply(getCursor(), m.getCoordinates().replaceArguments(), m.getArguments().get(0));
}
return m;
}
}
}