| /* |
| * 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. |
| */ |
| package main |
| |
| import ( |
| "flag" |
| "io/ioutil" |
| "log" |
| "os" |
| |
| "github.com/apache/incubator-openwhisk-runtime-go/openwhisk" |
| ) |
| |
| // flag to enable debug |
| var debug = flag.Bool("debug", false, "enable debug output") |
| |
| // flag to require on-the-fly compilation |
| var compile = flag.String("compile", "", "compile, reading in standard input the specified function, and producing the result in stdout") |
| |
| // use the runtime as a compiler "on-the-fly" |
| func extractAndCompile(ap *openwhisk.ActionProxy) { |
| // read the std in |
| in, err := ioutil.ReadAll(os.Stdin) |
| if err != nil { |
| log.Printf(err.Error()) |
| return |
| } |
| |
| // extract and compile it |
| file, err := ap.ExtractAndCompile(&in, *compile) |
| if err != nil { |
| log.Printf(err.Error()) |
| return |
| } |
| |
| // read the file and write it to stdout |
| out, err := ioutil.ReadFile(file) |
| _, err = os.Stdout.Write(out) |
| if err != nil { |
| log.Printf(err.Error()) |
| return |
| } |
| } |
| |
| func main() { |
| flag.Parse() |
| |
| // debugging |
| if *debug { |
| // set debugging flag, propagated to the actions |
| openwhisk.Debugging = true |
| os.Setenv("OW_DEBUG", "1") |
| } |
| |
| // create the action proxy |
| ap := openwhisk.NewActionProxy("./action", os.Getenv("OW_COMPILER"), os.Stdout, os.Stderr) |
| |
| // compile on the fly upon request |
| if *compile != "" { |
| extractAndCompile(ap) |
| return |
| } |
| |
| // start the balls rolling |
| openwhisk.Debug("OpenWhisk Go Proxy: starting") |
| ap.Start(8080) |
| |
| } |