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[server] Add server module
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6 files changed

+248
-4
lines changed

6 files changed

+248
-4
lines changed

‎build.gradle

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@@ -6,6 +6,10 @@ ext {
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socket: '1.0.2', // io.socket:socket.io-client
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jline: '2.14.5', // jline:jline
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javalin: '5.6.3', // io.javalin:javalin
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slf4j: '2.0.9', // org.slf4j:slf4j-simple
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jackson: '2.15.3', // com.fasterxml.jackson.core:jackson-databind
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junit: '5.9.2', // org.junit:junit-bom
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jmh: '1.37', // org.openjdk.jmh:jmh-core
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assertj: '3.24.2' // org.assertj:assertj-core

‎modules/server/build.gradle

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plugins {
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id 'java-library'
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id 'com.github.johnrengelman.shadow' version '8.1.1'
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}
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group = 'com.annimon.module'
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version = '2.0-SNAPSHOT'
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dependencies {
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compileOnlyApi project(":ownlang-core")
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implementation "io.javalin:javalin:${versions.javalin}"
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implementation "org.slf4j:slf4j-simple:${versions.slf4j}"
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implementation "com.fasterxml.jackson.core:jackson-databind:${versions.jackson}"
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testImplementation platform("org.junit:junit-bom:")
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testImplementation 'org.junit.jupiter:junit-jupiter'
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}
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test {
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useJUnitPlatform()
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}

‎modules/server/src/main/java/com/annimon/ownlang/modules/server/ContextValue.java

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package com.annimon.ownlang.modules.server;
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import com.annimon.ownlang.lib.*;
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import io.javalin.http.Context;
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import io.javalin.http.HttpStatus;
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import org.jetbrains.annotations.NotNull;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.function.Consumer;
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public class ContextValue extends MapValue {
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private final Context ctx;
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public ContextValue(@NotNull Context ctx) {
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super(10);
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this.ctx = ctx;
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init();
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}
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private void init() {
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set("body", Converters.voidToString(ctx::body));
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set("characterEncoding", Converters.voidToString(ctx::characterEncoding));
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set("contentType", Converters.voidToString(ctx::contentType));
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set("contextPath", Converters.voidToString(ctx::contextPath));
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set("fullUrl", Converters.voidToString(ctx::fullUrl));
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set("host", Converters.voidToString(ctx::host));
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set("ip", Converters.voidToString(ctx::ip));
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set("matchedPath", Converters.voidToString(ctx::matchedPath));
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set("path", Converters.voidToString(ctx::path));
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set("protocol", Converters.voidToString(ctx::protocol));
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set("queryString", Converters.voidToString(ctx::queryString));
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set("url", Converters.voidToString(ctx::url));
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set("userAgent", Converters.voidToString(ctx::userAgent));
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set("contentLength", Converters.voidToInt(ctx::contentLength));
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set("port", Converters.voidToInt(ctx::port));
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set("statusCode", Converters.voidToInt(ctx::statusCode));
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set("json", objectToContext(ctx::json));
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set("jsonStream", objectToContext(ctx::jsonStream));
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set("render", this::render);
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set("result", this::result);
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set("redirect", this::redirect);
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}
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private Value render(Value[] args) {
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Arguments.checkOrOr(1, 2, args.length);
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String filePath = args[0].asString();
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if (args.length == 1) {
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ctx.render(filePath);
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} else {
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MapValue map = (MapValue) args[1];
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Map<String, Object> data = new HashMap<>(map.size());
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map.getMap().forEach((k, v) -> data.put(k.asString(), v.asJavaObject()));
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ctx.render(filePath, data);
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}
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return this;
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}
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private Value redirect(Value[] args) {
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Arguments.checkOrOr(1, 2, args.length);
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HttpStatus status = args.length == 1 ? HttpStatus.FOUND : HttpStatus.forStatus(args[1].asInt());
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ctx.redirect(args[0].asString(), status);
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return this;
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}
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private Value result(Value[] args) {
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Arguments.checkOrOr(0, 1, args.length);
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if (args.length == 0) {
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return new StringValue(ctx.result());
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} else {
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final var arg = args[0];
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if (arg.type() == Types.ARRAY) {
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ctx.result(ValueUtils.toByteArray((ArrayValue) arg));
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} else {
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ctx.result(arg.asString());
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}
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return this;
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}
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}
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private Value objectToContext(Consumer<Object> consumer) {
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return new FunctionValue(args -> {
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Arguments.check(1, args.length);
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consumer.accept(args[0].asJavaObject());
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return this;
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});
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}
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}

‎modules/server/src/main/java/com/annimon/ownlang/modules/server/ServerValue.java

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package com.annimon.ownlang.modules.server;
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import com.annimon.ownlang.lib.*;
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import io.javalin.Javalin;
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import io.javalin.http.Handler;
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import io.javalin.security.RouteRole;
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import java.util.Arrays;
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public class ServerValue extends MapValue {
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private final Javalin server;
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public ServerValue(Javalin server) {
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super(10);
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this.server = server;
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init();
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}
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private void init() {
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set("get", httpMethod(server::get));
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set("post", httpMethod(server::post));
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set("put", httpMethod(server::put));
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set("patch", httpMethod(server::patch));
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set("head", httpMethod(server::head));
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set("delete", httpMethod(server::delete));
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set("options", httpMethod(server::options));
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set("error", this::error);
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set("start", this::start);
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}
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private Value error(Value[] args) {
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Arguments.checkOrOr(2, 3, args.length);
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final int handlerIndex;
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final String contentType;
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if (args.length == 2) {
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contentType = "*";
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handlerIndex = 1;
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} else {
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contentType = args[1].asString();
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handlerIndex = 2;
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}
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int status = args[0].asInt();
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final Handler handler = toHandler(ValueUtils.consumeFunction(args[handlerIndex], handlerIndex));
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server.error(status, contentType, handler);
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return this;
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}
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private Value start(Value[] args) {
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Arguments.checkRange(0, 2, args.length);
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switch (args.length) {
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case 0 -> server.start();
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case 1 -> server.start(args[0].asInt());
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case 2 -> server.start(args[0].asString(), args[1].asInt());
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}
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return this;
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}
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private FunctionValue httpMethod(HttpMethodHandler httpHandler) {
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return new FunctionValue(args -> {
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Arguments.checkAtLeast(2, args.length);
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final String path = args[0].asString();
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final Handler handler = toHandler(ValueUtils.consumeFunction(args[1], 1));
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final Role[] roles;
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if (args.length == 2) {
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roles = new Role[0];
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} else {
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roles = Arrays.stream(args)
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.skip(2)
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.map(Role::new)
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.toArray(Role[]::new);
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}
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httpHandler.handle(path, handler, roles);
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return this;
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});
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}
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private Handler toHandler(Function function) {
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return ctx -> function.execute(new ContextValue(ctx));
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}
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private interface HttpMethodHandler {
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void handle(String path, Handler handler, RouteRole[] roles);
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}
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private record Role(Value value) implements RouteRole { }
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}

‎modules/server/src/main/java/com/annimon/ownlang/modules/server/server.java

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package com.annimon.ownlang.modules.server;
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import com.annimon.ownlang.lib.*;
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import com.annimon.ownlang.modules.Module;
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import io.javalin.Javalin;
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import java.util.Map;
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import static java.util.Map.entry;
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public final class server implements Module {
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@Override
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public Map<String, Value> constants() {
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return Map.of();
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}
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@Override
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public Map<String, Function> functions() {
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return Map.ofEntries(
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entry("newServer", this::newServer),
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entry("serve", this::serve)
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);
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}
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private Value newServer(Value[] args) {
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Arguments.checkOrOr(0, 1, args.length);
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if (args.length == 0) {
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return new ServerValue(Javalin.create());
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} else {
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final Function configConsumer = ValueUtils.consumeFunction(args[0], 0);
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return new ServerValue(Javalin.create(config -> configConsumer.execute()));
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}
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}
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private Value serve(Value[] args) {
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// get path, port
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// javalin start()
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return NumberValue.ZERO;
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}
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}

‎settings.gradle

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@@ -5,7 +5,9 @@ include 'ownlang-parser'
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include 'ownlang-desktop'
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include 'ownlang-utils'
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include 'modules:main'
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findProject(':modules:main')?.name = 'main'
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include 'modules:canvasfx'
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findProject(':modules:canvasfx')?.name = 'canvasfx'
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final def modules = ['main', 'canvasfx', 'server']
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for (final def module in modules) {
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include "modules:$module"
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findProject(":modules:$module")?.name = module
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}

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