Add test coverage for improvement multipart encoded mode in rest-client

http/rest-client-reactive/pom.xml

@@ -41,5 +41,10 @@
             <groupId>io.quarkus</groupId>
             <artifactId>quarkus-smallrye-fault-tolerance</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.vertx</groupId>
+            <artifactId>vertx-junit5</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 </project>

http/rest-client-reactive/src/main/java/io/quarkus/ts/http/restclient/reactive/multipart/EncoderModeRestClient.java

@@ -0,0 +1,26 @@
+package io.quarkus.ts.http.restclient.reactive.multipart;
+
+import static jakarta.ws.rs.core.MediaType.MULTIPART_FORM_DATA;
+
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.FormParam;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
+
+import org.jboss.resteasy.reactive.PartType;
+import org.jboss.resteasy.reactive.RestForm;
+
+@Path("/encoder-mode")
+public interface EncoderModeRestClient {
+
+    @POST
+    @Consumes(MULTIPART_FORM_DATA)
+    @Produces(MediaType.APPLICATION_JSON)
+    MyMultipartDTO doAPostRequestToThisResource(
+            @PartType(MediaType.TEXT_PLAIN) @FormParam("file1") java.nio.file.Path file1,
+            @PartType(MediaType.TEXT_PLAIN) @FormParam("file2") java.nio.file.Path file2,
+            @RestForm String otherField);
+
+}

http/rest-client-reactive/src/main/java/io/quarkus/ts/http/restclient/reactive/multipart/Html5EncoderModeRestClient.java

@@ -0,0 +1,8 @@
+package io.quarkus.ts.http.restclient.reactive.multipart;
+
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
+
+@RegisterRestClient(configKey = "encoder-mode-html5")
+public interface Html5EncoderModeRestClient extends EncoderModeRestClient {
+
+}

http/rest-client-reactive/src/main/java/io/quarkus/ts/http/restclient/reactive/multipart/Item.java

@@ -0,0 +1,56 @@
+package io.quarkus.ts.http.restclient.reactive.multipart;
+
+import java.util.List;
+import java.util.Map;
+
+public class Item {
+    public final String name;
+    public final long size;
+    public final String charset;
+    public final String fileContent;
+
+    public String getFileContent() {
+        return fileContent;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public long getSize() {
+        return size;
+    }
+
+    public String getCharset() {
+        return charset;
+    }
+
+    public String getFileName() {
+        return fileName;
+    }
+
+    public boolean isFileItem() {
+        return isFileItem;
+    }
+
+    public Map<String, List<String>> getHeaders() {
+        return headers;
+    }
+
+    public final String fileName;
+    public final boolean isFileItem;
+    public final Map<String, List<String>> headers;
+    public boolean fileItem;
+
+    public Item(String name, long size, String charset, String fileName, boolean isFileItem,
+            Map<String, List<String>> headers, boolean fileItem, String fileContent) {
+        this.name = name;
+        this.size = size;
+        this.charset = charset;
+        this.fileName = fileName;
+        this.isFileItem = isFileItem;
+        this.headers = headers;
+        this.fileItem = fileItem;
+        this.fileContent = fileContent;
+    }
+}

http/rest-client-reactive/src/main/java/io/quarkus/ts/http/restclient/reactive/multipart/MyMultipartDTO.java

@@ -0,0 +1,22 @@
+package io.quarkus.ts.http.restclient.reactive.multipart;
+
+import java.util.List;
+
+public class MyMultipartDTO {
+    private List<Item> items;
+
+    public MyMultipartDTO() {
+    }
+
+    public MyMultipartDTO(List<Item> items) {
+        this.items = items;
+    }
+
+    public List<Item> getItems() {
+        return items;
+    }
+
+    public void setItems(List<Item> items) {
+        this.items = items;
+    }
+}

http/rest-client-reactive/src/main/java/io/quarkus/ts/http/restclient/reactive/multipart/Rfc1738EncoderModeRestClient.java

@@ -0,0 +1,8 @@
+package io.quarkus.ts.http.restclient.reactive.multipart;
+
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
+
+@RegisterRestClient(configKey = "encoder-mode-rfc1738")
+public interface Rfc1738EncoderModeRestClient extends EncoderModeRestClient {
+
+}

http/rest-client-reactive/src/main/java/io/quarkus/ts/http/restclient/reactive/multipart/Rfc3986EncoderModeRestClient.java

@@ -0,0 +1,8 @@
+package io.quarkus.ts.http.restclient.reactive.multipart;
+
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
+
+@RegisterRestClient(configKey = "encoder-mode-rfc3986")
+public interface Rfc3986EncoderModeRestClient extends EncoderModeRestClient {
+
+}

http/rest-client-reactive/src/main/java/io/quarkus/ts/http/restclient/reactive/resources/MultipartPostEncoderModeResource.java

@@ -0,0 +1,67 @@
+package io.quarkus.ts.http.restclient.reactive.resources;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+
+import jakarta.ws.rs.Consumes;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.PathParam;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.WebApplicationException;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+
+import org.eclipse.microprofile.rest.client.inject.RestClient;
+import org.jboss.resteasy.reactive.server.multipart.FormValue;
+import org.jboss.resteasy.reactive.server.multipart.MultipartFormDataInput;
+
+import io.quarkus.ts.http.restclient.reactive.multipart.EncoderModeRestClient;
+import io.quarkus.ts.http.restclient.reactive.multipart.Html5EncoderModeRestClient;
+import io.quarkus.ts.http.restclient.reactive.multipart.Item;
+import io.quarkus.ts.http.restclient.reactive.multipart.MyMultipartDTO;
+import io.quarkus.ts.http.restclient.reactive.multipart.Rfc1738EncoderModeRestClient;
+import io.quarkus.ts.http.restclient.reactive.multipart.Rfc3986EncoderModeRestClient;
+
+@Path("/encode")
+public class MultipartPostEncoderModeResource {
+
+    private final Map<String, EncoderModeRestClient> modeToRestClient;
+
+    public MultipartPostEncoderModeResource(@RestClient Html5EncoderModeRestClient html5Client,
+            @RestClient Rfc1738EncoderModeRestClient rfc1738Client,
+            @RestClient Rfc3986EncoderModeRestClient rfc3986Client) {
+        this.modeToRestClient = Map.of("HTML5", html5Client, "RFC1738", rfc1738Client, "RFC3986", rfc3986Client);
+    }
+
+    @Path("{encoder-mode}")
+    @POST
+    @Consumes(MediaType.MULTIPART_FORM_DATA)
+    @Produces(MediaType.APPLICATION_JSON)
+    public MyMultipartDTO doAPostRequestToSimpleEncodeResource(MultipartFormDataInput input,
+            @PathParam("encoder-mode") String encoderMode) {
+
+        EncoderModeRestClient client = modeToRestClient.get(encoderMode);
+        if (!modeToRestClient.containsKey(encoderMode)) {
+            throw new WebApplicationException("Unsupported encoder mode" + encoderMode, Response.Status.BAD_REQUEST);
+        }
+
+        Map<String, Collection<FormValue>> formValues = input.getValues();
+
+        if (!formValues.containsKey("file1") || !formValues.containsKey("file2") || !formValues.containsKey("otherField")) {
+            throw new IllegalArgumentException("Missing mandatory fields!");
+        }
+
+        java.nio.file.Path file1 = formValues.get("file1").stream().findFirst().get().getFileItem().getFile();
+        java.nio.file.Path file2 = formValues.get("file2").stream().findFirst().get().getFileItem().getFile();
+        String otherField = formValues.get("otherField").stream().findFirst().get().getValue();
+
+        MyMultipartDTO response = client.doAPostRequestToThisResource(file1, file2, otherField);
+
+        List<Item> items = response.getItems();
+
+        return new MyMultipartDTO(items);
+    }
+
+}

http/rest-client-reactive/src/main/resources/application.properties

@@ -1,3 +1,10 @@
 quarkus.tls.trust-all=true
 quarkus.http.ssl.certificate.key-store-file=META-INF/keystore.jks
-quarkus.http.ssl.certificate.key-store-password=password
+quarkus.http.ssl.certificate.key-store-password=password
+vertx-server-url=http://${quarkus.http.host:localhost}:${vertx-server-port}/
+quarkus.rest-client.encoder-mode-html5.url=${vertx-server-url}
+quarkus.rest-client.encoder-mode-html5.multipart-post-encoder-mode=HTML5
+quarkus.rest-client.encoder-mode-rfc1738.url=${vertx-server-url}
+quarkus.rest-client.encoder-mode-rfc1738.multipart-post-encoder-mode=RFC1738
+quarkus.rest-client.encoder-mode-rfc3986.url=${vertx-server-url}
+quarkus.rest-client.encoder-mode-rfc3986.multipart-post-encoder-mode=RFC3986