[ISSUE apache#4612] prepare shenyu-wasm

.github/workflows/build-wasm.yml

@@ -0,0 +1,72 @@
+name: build wasm
+
+on: [push]
+
+jobs:
+  linux:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up rust
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - name: Build with rust
+        run: |
+          cd ${{ github.workspace }}/shenyu-wasm/shenyu-wasm-build
+          /home/runner/.cargo/bin/cargo clean
+          /home/runner/.cargo/bin/cargo build --release
+      - uses: actions/upload-artifact@v2
+        with:
+          name: lib
+          path: shenyu-wasm/shenyu-wasm-build/target/release/lib*
+          if-no-files-found: error
+
+  mac:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up rust
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - name: Build with rust
+        run: |
+          cd ${{ github.workspace }}/shenyu-wasm/shenyu-wasm-build
+          /Users/runner/.cargo/bin/cargo clean
+          /Users/runner/.cargo/bin/cargo build --release
+      - uses: actions/upload-artifact@v2
+        with:
+          name: lib
+          path: shenyu-wasm/shenyu-wasm-build/target/release/lib*
+          if-no-files-found: error
+
+  windows:
+    runs-on: windows-2019
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up rust
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - name: Build with rust
+        run: |
+          cd ${{ github.workspace }}/shenyu-wasm/shenyu-wasm-build
+          C://Users//runneradmin//.cargo//bin//cargo.exe clean
+          C://Users//runneradmin//.cargo//bin//cargo.exe build --release
+      - uses: actions/upload-artifact@v2
+        with:
+          name: lib
+          path: shenyu-wasm/shenyu-wasm-build/target/release/*.dll
+          if-no-files-found: error
+      - uses: actions/upload-artifact@v2
+        with:
+          name: lib
+          path: shenyu-wasm/shenyu-wasm-build/target/release/*.lib
+          if-no-files-found: error

.gitignore

@@ -41,3 +41,4 @@ Thumbs.db
 # agent build ignore
 /agent/
 
+/**/Cargo.lock

pom.xml

@@ -46,6 +46,7 @@
         <module>shenyu-sdk</module>
         <module>shenyu-discovery</module>
         <module>shenyu-kubernetes-controller</module>
+        <module>shenyu-wasm</module>
     </modules>
 
     <licenses>

shenyu-wasm/pom.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one or more
+  ~ contributor license agreements.  See the NOTICE file distributed with
+  ~ this work for additional information regarding copyright ownership.
+  ~ The ASF licenses this file to You under the Apache License, Version 2.0
+  ~ (the "License"); you may not use this file except in compliance with
+  ~ the License.  You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <groupId>org.apache.shenyu</groupId>
+        <artifactId>shenyu</artifactId>
+        <version>2.6.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>shenyu-wasm</artifactId>
+    <packaging>pom</packaging>
+    <modules>
+        <module>shenyu-wasm-runtime</module>
+    </modules>
+</project>

shenyu-wasm/shenyu-wasm-build/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+publish = false
+name = "shenyu-wasm-build"
+version = "0.1.0"
+authors = ["zhangzicheng@apache.org"]
+edition = "2018"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+wasmer = { git = "https://github.com/wasmerio/wasmer", rev = "1.0.0" }
+wasmer-runtime = { git = "https://github.com/wasmerio/wasmer", rev = "1.0.0" }
+wasmer-runtime-core = { git = "https://github.com/wasmerio/wasmer", rev = "1.0.0" }
+jni = "0.16"

shenyu-wasm/shenyu-wasm-build/src/exception.rs

@@ -0,0 +1,44 @@
+pub use jni::errors::Error;
+use jni::{errors::ErrorKind, JNIEnv};
+use std::thread;
+
+pub fn runtime_error(message: String) -> Error {
+    Error::from_kind(ErrorKind::Msg(message))
+}
+
+#[derive(Debug)]
+pub enum JOption<T> {
+    Some(T),
+    None,
+}
+
+impl<T> JOption<T> {
+    pub fn unwrap_or(self, default: T) -> T {
+        match self {
+            JOption::Some(result) => result,
+            JOption::None => default,
+        }
+    }
+}
+
+pub fn joption_or_throw<T>(env: &JNIEnv, result: thread::Result<Result<T, Error>>) -> JOption<T> {
+    match result {
+        Ok(result) => match result {
+            Ok(result) => JOption::Some(result),
+            Err(error) => {
+                if !env.exception_check().unwrap() {
+                    env.throw_new("java/lang/RuntimeException", &error.to_string())
+                        .expect("Cannot throw an `java/lang/RuntimeException` exception.");
+                }
+
+                JOption::None
+            }
+        },
+        Err(ref error) => {
+            env.throw_new("java/lang/RuntimeException", format!("{:?}", error))
+                .expect("Cannot throw an `java/lang/RuntimeException` exception.");
+
+            JOption::None
+        }
+    }
+}