Support sending InputStream in REST Client

extensions/resteasy-reactive/rest-client-reactive/deployment/src/test/java/io/quarkus/rest/client/reactive/SendInputStreamTest.java

@@ -0,0 +1,58 @@
+package io.quarkus.rest.client.reactive;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.InputStream;
+import java.net.URI;
+
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+
+import org.eclipse.microprofile.rest.client.RestClientBuilder;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+import io.quarkus.test.QuarkusUnitTest;
+import io.quarkus.test.common.http.TestHTTPResource;
+
+public class SendInputStreamTest {
+
+    @RegisterExtension
+    static final QuarkusUnitTest TEST = new QuarkusUnitTest();
+
+    private final File FILE = new File("./src/test/resources/larger-than-chunk-size.txt");
+
+    @TestHTTPResource
+    URI uri;
+
+    @Test
+    public void test() throws FileNotFoundException {
+        Client client = RestClientBuilder.newBuilder().baseUri(uri).build(Client.class);
+
+        InputStream is = new FileInputStream(FILE);
+        long result = client.count(is);
+
+        assertEquals(FILE.length(), result);
+    }
+
+    @Path("test")
+    public interface Client {
+
+        @POST
+        @Path("count")
+        long count(InputStream is);
+    }
+
+    @Path("test")
+    public static class Resource {
+
+        @POST
+        @Path("count")
+        public long count(String input) {
+            return input.length();
+        }
+    }
+}

extensions/resteasy-reactive/rest-client-reactive/deployment/src/test/java/io/quarkus/rest/client/reactive/SendRequestScopedInputStreamTest.java

@@ -0,0 +1,101 @@
+package io.quarkus.rest.client.reactive;
+
+import static io.restassured.RestAssured.when;
+import static org.hamcrest.Matchers.equalTo;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.concurrent.atomic.AtomicLong;
+
+import jakarta.enterprise.context.RequestScoped;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
+import org.eclipse.microprofile.rest.client.inject.RestClient;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+import io.quarkus.runtime.BlockingOperationControl;
+import io.quarkus.runtime.BlockingOperationNotAllowedException;
+import io.quarkus.test.QuarkusUnitTest;
+
+public class SendRequestScopedInputStreamTest {
+
+    @RegisterExtension
+    static final QuarkusUnitTest TEST = new QuarkusUnitTest()
+            .withConfigurationResource("send-request-scoped-input-stream.properties");
+
+    @Test
+    public void test() {
+        when()
+                .get("test/in")
+                .then()
+                .statusCode(200)
+                .body(equalTo("" + CustomInputStream.MAX_ITERATIONS));
+
+        // make sure the request scope of the stream is coming into play
+        when()
+                .get("test/in")
+                .then()
+                .statusCode(200)
+                .body(equalTo("" + CustomInputStream.MAX_ITERATIONS));
+    }
+
+    @RegisterRestClient(configKey = "test")
+    @Path("test")
+    public interface Client {
+
+        @Path("out")
+        @POST
+        long count(InputStream is);
+    }
+
+    @Path("test")
+    public static class Resource {
+
+        private final CustomInputStream is;
+        private final Client client;
+
+        public Resource(CustomInputStream is, @RestClient Client client) {
+            this.is = is;
+            this.client = client;
+        }
+
+        @Path("in")
+        @GET
+        public long in() {
+            return client.count(is);
+        }
+
+        @Path("out")
+        @POST
+        public long out(String input) {
+            return input.length();
+        }
+    }
+
+    @RequestScoped
+    public static class CustomInputStream extends InputStream {
+
+        private static final int MAX_ITERATIONS = 100;
+        private final AtomicLong count = new AtomicLong();
+
+        @Override
+        public int read() throws IOException {
+            if (!BlockingOperationControl.isBlockingAllowed()) {
+                throw new BlockingOperationNotAllowedException("The read method of the stream was called an event loop thread");
+            }
+            if (count.incrementAndGet() <= MAX_ITERATIONS) {
+                try {
+                    Thread.sleep(20);
+                } catch (InterruptedException ignored) {
+
+                }
+                return 'A'; // we don't really care about what we return
+            }
+            return -1; // signal the end of the stream
+        }
+    }
+}