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Ignore Jakarta Suspended and Context, Support BeanParam #1942

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Feb 17, 2023
Merged

Ignore Jakarta Suspended and Context, Support BeanParam #1942

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cf83a6a
Ignore Jakarta Suspended and Context, Support BeanParam
JKomoroski Feb 17, 2023
0b007be
Merge branch 'master' into issue/1940/jakarta_support_jaxrs_2
velo Feb 17, 2023
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2 changes: 2 additions & 0 deletions jakarta/README.md
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Expand Up @@ -32,3 +32,5 @@ Links the value of the corresponding parameter to a query parameter. When invok
Links the value of the corresponding parameter to a header.
#### `@FormParam`
Links the value of the corresponding parameter to a key passed to `Encoder.Text<Map<String, Object>>.encode()`.
#### `@BeanParm`
Aggregates the above supported parameter annotations under a single value object.
127 changes: 96 additions & 31 deletions jakarta/src/main/java/feign/jaxrs/JakartaContract.java
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Expand Up @@ -20,9 +20,12 @@
import feign.MethodMetadata;
import feign.Request;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Collections;
import jakarta.ws.rs.*;
import jakarta.ws.rs.container.Suspended;
import jakarta.ws.rs.core.Context;

public class JakartaContract extends DeclarativeContract {

Expand Down Expand Up @@ -93,6 +96,12 @@ public JakartaContract() {
super.registerMethodAnnotation(Consumes.class, this::handleConsumesAnnotation);
super.registerMethodAnnotation(Produces.class, this::handleProducesAnnotation);

// parameter with unsupported jax-rs annotations should not be passed as body params.
// this will prevent interfaces from becoming unusable entirely due to single (unsupported)
// endpoints.
// https://github.com/OpenFeign/feign/issues/669
super.registerParameterAnnotation(Suspended.class, (ann, data, i) -> data.ignoreParamater(i));
super.registerParameterAnnotation(Context.class, (ann, data, i) -> data.ignoreParamater(i));
// trying to minimize the diff
registerParamAnnotations();
}
Expand All @@ -113,37 +122,93 @@ private void handleConsumesAnnotation(Consumes consumes, MethodMetadata data) {
}

protected void registerParamAnnotations() {
{
registerParameterAnnotation(PathParam.class, (param, data, paramIndex) -> {
final String name = param.value();
checkState(emptyToNull(name) != null, "PathParam.value() was empty on parameter %s",
paramIndex);
nameParam(data, name, paramIndex);
});
registerParameterAnnotation(QueryParam.class, (param, data, paramIndex) -> {
final String name = param.value();
checkState(emptyToNull(name) != null, "QueryParam.value() was empty on parameter %s",
paramIndex);
final String query = addTemplatedParam(name);
data.template().query(name, query);
nameParam(data, name, paramIndex);
});
registerParameterAnnotation(HeaderParam.class, (param, data, paramIndex) -> {
final String name = param.value();
checkState(emptyToNull(name) != null, "HeaderParam.value() was empty on parameter %s",
paramIndex);
final String header = addTemplatedParam(name);
data.template().header(name, header);
nameParam(data, name, paramIndex);
});
registerParameterAnnotation(FormParam.class, (param, data, paramIndex) -> {
final String name = param.value();
checkState(emptyToNull(name) != null, "FormParam.value() was empty on parameter %s",
paramIndex);
data.formParams().add(name);
nameParam(data, name, paramIndex);
});
}

registerParameterAnnotation(PathParam.class, (param, data, paramIndex) -> {
final String name = param.value();
checkState(emptyToNull(name) != null, "PathParam.value() was empty on parameter %s",
paramIndex);
nameParam(data, name, paramIndex);
});
registerParameterAnnotation(QueryParam.class, (param, data, paramIndex) -> {
final String name = param.value();
checkState(emptyToNull(name) != null, "QueryParam.value() was empty on parameter %s",
paramIndex);
final String query = addTemplatedParam(name);
data.template().query(name, query);
nameParam(data, name, paramIndex);
});
registerParameterAnnotation(HeaderParam.class, (param, data, paramIndex) -> {
final String name = param.value();
checkState(emptyToNull(name) != null, "HeaderParam.value() was empty on parameter %s",
paramIndex);
final String header = addTemplatedParam(name);
data.template().header(name, header);
nameParam(data, name, paramIndex);
});
registerParameterAnnotation(FormParam.class, (param, data, paramIndex) -> {
final String name = param.value();
checkState(emptyToNull(name) != null, "FormParam.value() was empty on parameter %s",
paramIndex);
data.formParams().add(name);
nameParam(data, name, paramIndex);
});

// Reflect over the Bean Param looking for supported parameter annotations
registerParameterAnnotation(BeanParam.class, (param, data, paramIndex) -> {
final Field[] aggregatedParams = data.method()
.getParameters()[paramIndex]
.getType()
.getDeclaredFields();

for (Field aggregatedParam : aggregatedParams) {

if (aggregatedParam.isAnnotationPresent(PathParam.class)) {
final String name = aggregatedParam.getAnnotation(PathParam.class).value();
checkState(
emptyToNull(name) != null,
"BeanParam parameter %s contains PathParam with empty .value() on field %s",
paramIndex,
aggregatedParam.getName());
nameParam(data, name, paramIndex);
}

if (aggregatedParam.isAnnotationPresent(QueryParam.class)) {
final String name = aggregatedParam.getAnnotation(QueryParam.class).value();
checkState(
emptyToNull(name) != null,
"BeanParam parameter %s contains QueryParam with empty .value() on field %s",
paramIndex,
aggregatedParam.getName());
final String query = addTemplatedParam(name);
data.template().query(name, query);
nameParam(data, name, paramIndex);
}

if (aggregatedParam.isAnnotationPresent(HeaderParam.class)) {
final String name = aggregatedParam.getAnnotation(HeaderParam.class).value();
checkState(
emptyToNull(name) != null,
"BeanParam parameter %s contains HeaderParam with empty .value() on field %s",
paramIndex,
aggregatedParam.getName());
final String header = addTemplatedParam(name);
data.template().header(name, header);
nameParam(data, name, paramIndex);
}

if (aggregatedParam.isAnnotationPresent(FormParam.class)) {
final String name = aggregatedParam.getAnnotation(FormParam.class).value();
checkState(
emptyToNull(name) != null,
"BeanParam parameter %s contains FormParam with empty .value() on field %s",
paramIndex,
aggregatedParam.getName());
data.formParams().add(name);
nameParam(data, name, paramIndex);
}
}
});

}

// Not using override as the super-type's method is deprecated and will be removed.
Expand Down
73 changes: 61 additions & 12 deletions jakarta/src/test/java/feign/jaxrs/JakartaContractTest.java
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Expand Up @@ -15,32 +15,81 @@

import feign.MethodMetadata;
import feign.Response;
import jakarta.ws.rs.Consumes;
import jakarta.ws.rs.DELETE;
import jakarta.ws.rs.FormParam;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.HeaderParam;
import jakarta.ws.rs.HttpMethod;
import jakarta.ws.rs.POST;
import jakarta.ws.rs.PUT;
import jakarta.ws.rs.Path;
import jakarta.ws.rs.PathParam;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.QueryParam;
import feign.jaxrs.JakartaContractTest.JakartaInternals.BeanParamInput;
import jakarta.ws.rs.*;
import jakarta.ws.rs.container.AsyncResponse;
import jakarta.ws.rs.container.Suspended;
import jakarta.ws.rs.core.Context;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.UriInfo;
import org.junit.Test;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.net.URI;
import java.util.List;
import static feign.assertj.FeignAssertions.assertThat;
import static java.util.Arrays.asList;
import static org.assertj.core.data.MapEntry.entry;

/**
* Tests interfaces defined per {@link JakartaContract} are interpreted into expected
* {@link feign .RequestTemplate template} instances.
*/
public class JakartaContractTest extends JAXRSContractTestSupport<JakartaContract> {

@Test
public void injectJaxrsInternals() throws Exception {
final MethodMetadata methodMetadata =
parseAndValidateMetadata(JakartaInternals.class, "inject", AsyncResponse.class,
UriInfo.class);
assertThat(methodMetadata.template())
.noRequestBody();
}

@Test
public void injectBeanParam() throws Exception {
final MethodMetadata methodMetadata =
parseAndValidateMetadata(JakartaInternals.class, "beanParameters", BeanParamInput.class);
assertThat(methodMetadata.template())
.noRequestBody();

assertThat(methodMetadata.template())
.hasHeaders(entry("X-Custom-Header", asList("{X-Custom-Header}")));
assertThat(methodMetadata.template())
.hasQueries(entry("query", asList("{query}")));
assertThat(methodMetadata.formParams())
.isNotEmpty()
.containsExactly("form");

}

public interface JakartaInternals {
@GET
@Path("/")
void inject(@Suspended AsyncResponse ar, @Context UriInfo info);

@Path("/{path}")
@POST
void beanParameters(@BeanParam BeanParamInput beanParam);

public class BeanParamInput {

@PathParam("path")
String path;

@QueryParam("query")
String query;

@FormParam("form")
String form;

@HeaderParam("X-Custom-Header")
String header;
}
}

interface Methods {

@POST
Expand Down