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123 lines (98 loc) · 3.8 KB
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/**
* Copyright 2012-2020 The Feign 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
*
* 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 feign;
import okhttp3.mockwebserver.MockResponse;
import okhttp3.mockwebserver.MockWebServer;
import org.junit.Rule;
import org.junit.Test;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import static feign.assertj.MockWebServerAssertions.assertThat;
public class ContractWithRuntimeInjectionTest {
static class CaseExpander implements Param.Expander {
private final boolean lowercase;
CaseExpander() {
this(false);
}
CaseExpander(boolean lowercase) {
this.lowercase = lowercase;
}
@Override
public String expand(Object value) {
return lowercase ? value.toString().toLowerCase() : value.toString();
}
}
@Rule
public final MockWebServer server = new MockWebServer();
interface TestExpander {
@RequestLine("GET /path?query={query}")
Response get(@Param(value = "query", expander = CaseExpander.class) String query);
}
@Test
public void baseCaseExpanderNewInstance() throws InterruptedException {
server.enqueue(new MockResponse());
String baseUrl = server.url("/default").toString();
Feign.builder().target(TestExpander.class, baseUrl).get("FOO");
assertThat(server.takeRequest()).hasPath("/default/path?query=FOO");
}
@Configuration
static class FeignConfiguration {
@Bean
CaseExpander lowercaseExpander() {
return new CaseExpander(true);
}
@Bean
Contract contract(BeanFactory beanFactory) {
return new ContractWithRuntimeInjection(beanFactory);
}
}
static class ContractWithRuntimeInjection implements Contract {
final BeanFactory beanFactory;
ContractWithRuntimeInjection(BeanFactory beanFactory) {
this.beanFactory = beanFactory;
}
/**
* Injects {@link MethodMetadata#indexToExpander(Map)} via {@link BeanFactory#getBean(Class)}.
*/
@Override
public List<MethodMetadata> parseAndValidateMetadata(Class<?> targetType) {
List<MethodMetadata> result = new Contract.Default().parseAndValidateMetadata(targetType);
for (MethodMetadata md : result) {
Map<Integer, Param.Expander> indexToExpander = new LinkedHashMap<Integer, Param.Expander>();
for (Map.Entry<Integer, Class<? extends Param.Expander>> entry : md.indexToExpanderClass()
.entrySet()) {
indexToExpander.put(entry.getKey(), beanFactory.getBean(entry.getValue()));
}
md.indexToExpander(indexToExpander);
}
return result;
}
}
@Test
public void contractWithRuntimeInjection() throws InterruptedException {
server.enqueue(new MockResponse());
String baseUrl = server.url("/default").toString();
ApplicationContext context = new AnnotationConfigApplicationContext(FeignConfiguration.class);
Feign.builder()
.contract(context.getBean(Contract.class))
.target(TestExpander.class, baseUrl).get("FOO");
assertThat(server.takeRequest()).hasPath("/default/path?query=foo");
}
}