feat: align Java HTTP mapping with the new model and add a test (#2453)

backend/controller/ingress/testdata/java/httpingress/ftl.toml

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+module = "httpingress"
+language = "java"

backend/controller/ingress/testdata/java/httpingress/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>xyz.block.ftl.examples</groupId>
+    <artifactId>httpingress</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <groupId>xyz.block.ftl</groupId>
+        <artifactId>ftl-build-parent-java</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+</project>

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/ArrayType.java

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+package xyz.block.ftl.java.test.http;
+
+public class ArrayType {
+
+    private String item;
+
+    public String getItem() {
+        return item;
+    }
+
+    public ArrayType setItem(String item) {
+        this.item = item;
+        return this;
+    }
+}

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/DeleteRequest.java

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+package xyz.block.ftl.java.test.http;
+
+public class DeleteRequest {
+    private String userId;
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+}

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/DeleteResponse.java

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+package xyz.block.ftl.java.test.http;
+
+public class DeleteResponse {
+}

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/GetRequest.java

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+package xyz.block.ftl.java.test.http;
+
+public class GetRequest {
+
+    private String userId;
+    private String postId;
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public String getPostId() {
+        return postId;
+    }
+
+    public void setPostId(String postId) {
+        this.postId = postId;
+    }
+}

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/GetResponse.java

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+package xyz.block.ftl.java.test.http;
+
+public class GetResponse {
+
+    private Nested nested;
+
+    private String msg;
+
+    public Nested getNested() {
+        return nested;
+    }
+
+    public GetResponse setNested(Nested nested) {
+        this.nested = nested;
+        return this;
+
+    }
+
+    public String getMsg() {
+        return msg;
+    }
+
+    public GetResponse setMsg(String msg) {
+        this.msg = msg;
+        return this;
+    }
+}

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/Nested.java

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+package xyz.block.ftl.java.test.http;
+
+import com.fasterxml.jackson.annotation.JsonAlias;
+
+public class Nested {
+
+    @JsonAlias("good_stuff")
+    private String goodStuff;
+
+    public String getGoodStuff() {
+        return goodStuff;
+    }
+
+    public Nested setGoodStuff(String goodStuff) {
+        this.goodStuff = goodStuff;
+        return this;
+    }
+}

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/PostRequest.java

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+package xyz.block.ftl.java.test.http;
+
+import com.fasterxml.jackson.annotation.JsonAlias;
+
+public class PostRequest {
+    @JsonAlias("user_id")
+    private int userId;
+    private int postId;
+
+    public int getUserId() {
+        return userId;
+    }
+
+    public void setUserId(int userId) {
+        this.userId = userId;
+    }
+
+    public int getPostId() {
+        return postId;
+    }
+
+    public void setPostId(int postId) {
+        this.postId = postId;
+    }
+}

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/PostResponse.java

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+package xyz.block.ftl.java.test.http;
+
+public class PostResponse {
+    private boolean success;
+
+    public boolean isSuccess() {
+        return success;
+    }
+
+    public PostResponse setSuccess(boolean success) {
+        this.success = success;
+        return this;
+    }
+}

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/PutRequest.java

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+package xyz.block.ftl.java.test.http;
+
+public class PutRequest {
+    private String postId;
+
+    public String getPostId() {
+        return postId;
+    }
+
+    public void setPostId(String postId) {
+        this.postId = postId;
+    }
+}

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/PutResponse.java

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+package xyz.block.ftl.java.test.http;
+
+public class PutResponse {
+
+}

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/QueryParamRequest.java

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+package xyz.block.ftl.java.test.http;
+
+import org.jetbrains.annotations.Nullable;
+
+public class QueryParamRequest {
+
+    @Nullable
+    String foo;
+
+    public @Nullable String getFoo() {
+        return foo;
+    }
+
+    public QueryParamRequest setFoo(@Nullable String foo) {
+        this.foo = foo;
+        return this;
+    }
+}

backend/controller/ingress/testdata/java/httpingress/src/main/java/xyz/block/ftl/java/test/http/TestHTTP.java

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+package xyz.block.ftl.java.test.http;
+
+import java.util.List;
+
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.PUT;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+
+import jakarta.ws.rs.core.MediaType;
+import org.jboss.resteasy.reactive.ResponseHeader;
+import org.jboss.resteasy.reactive.ResponseStatus;
+import org.jboss.resteasy.reactive.RestPath;
+import org.jboss.resteasy.reactive.RestQuery;
+
+@Path("/")
+public class TestHTTP {
+
+    @GET
+    @Path("/users/{userId}/posts/{postId}")
+    @ResponseHeader(name = "Get", value = "Header from FTL")
+    public GetResponse get(@RestPath String userId, @RestPath String postId) {
+        return new GetResponse()
+                .setMsg(String.format("UserID: %s, PostID: %s", userId, postId))
+                .setNested(new Nested().setGoodStuff("This is good stuff"));
+    }
+
+    @POST
+    @Path("/users")
+    @ResponseStatus(201)
+    @ResponseHeader(name = "Post", value = "Header from FTL")
+    public PostResponse post(PostRequest req) {
+        return new PostResponse().setSuccess(true);
+    }
+
+    @PUT
+    @Path("/users/{userId}")
+    @ResponseHeader(name = "Put", value = "Header from FTL")
+    public PutResponse put(PutRequest req) {
+        return new PutResponse();
+    }
+
+    @DELETE
+    @Path("/users/{userId}")
+    @ResponseHeader(name = "Delete", value = "Header from FTL")
+    @ResponseStatus(200)
+    public DeleteResponse delete(@RestPath String userId) {
+        System.out.println("delete");
+        return new DeleteResponse();
+    }
+
+    @GET
+    @Path("/queryparams")
+    public String query(@RestQuery String foo) {
+        return foo == null ? "No value" : foo;
+    }
+
+    @GET
+    @Path("/html")
+    @Produces("text/html; charset=utf-8")
+    public String html() {
+        return "<html><body><h1>HTML Page From FTL 🚀!</h1></body></html>";
+    }
+
+    @POST
+    @Path("/bytes")
+    public byte[] bytes(byte[] b) {
+        return b;
+    }
+
+    @GET
+    @Path("/empty")
+    @ResponseStatus(200)
+    public void empty() {
+    }
+
+    @POST
+    @Path("/string")
+    public String string(String val) {
+        return val;
+    }
+
+    @POST
+    @Path("/int")
+    @Produces(MediaType.APPLICATION_JSON)
+    public int intMethod(int val) {
+        return val;
+    }
+
+    @POST
+    @Path("/float")
+    @Produces(MediaType.APPLICATION_JSON)
+    public float floatVerb(float val) {
+        return val;
+    }
+
+    @POST
+    @Path("/bool")
+    @Produces(MediaType.APPLICATION_JSON)
+    public boolean bool(boolean val) {
+        return val;
+    }
+
+    @GET
+    @Path("/error")
+    public String error() {
+        throw new RuntimeException("Error from FTL");
+    }
+
+    @POST
+    @Path("/array/string")
+    public String[] arrayString(String[] array) {
+        return array;
+    }
+
+    @POST
+    @Path("/array/data")
+    public List<ArrayType> arrayData(List<ArrayType> array) {
+        return array;
+    }
+
+}