init (#2)

JohannesKonings · web-flow · commit 88d291de3a2a · 2020-05-10T08:04:12.000+02:00
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,2 @@
+node_modules/
+layer.zip
diff --git a/README.md b/README.md
@@ -1,2 +1,17 @@
 # aws-lambda-abap-runtime
 AWS Lambda ABAP custom runtime
+
+# Usage
+
+Add a Node.Js layer from this repository https://github.com/lambci/node-custom-lambda to the lambda function 
+
+Run this commands to create the abap runtime layer as zip file.
+
+```sh
+npm install
+sh /scripts/create_layer.sh
+```
+
+Add this layer as second layer to the lambda function. Via manual Upload or with the command from /scripts/publich_layer.sh. 
+
+Create a file with the name `zcl_handler.clas.abap` in the lambda function. It could looks like the the file in the test folder.
diff --git a/abaplint.json b/abaplint.json
@@ -0,0 +1,35 @@
+{
+  "global": {
+    "files": "/src/*.*",
+    "skipGeneratedGatewayClasses": true,
+    "skipGeneratedPersistentClasses": true,
+    "skipGeneratedFunctionGroups": true
+  },
+  "syntax": {
+    "version": "v702",
+    "errorNamespace": "."
+  },
+  "rules": {
+    "when_others_last": true,
+    "avoid_use": {
+      "define": true,
+      "execSQL": true,
+      "kernelCall": true,
+      "communication": true,
+      "systemCall": true,
+      "break": true,
+      "statics": true
+    },
+    "parser_error": true,
+    "unknown_types": true,
+    "check_syntax": true,
+    "functional_writing": true,
+    "obsolete_statement": {
+      "refresh": true,
+      "compute": true,
+      "requested": true,
+      "setExtended": true,
+      "occurs": true
+    }
+  }
+}
diff --git a/bootstrap b/bootstrap
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+set -euo pipefail
+
+# Initialization - load function handler
+sourcecode=$(cat $LAMBDA_TASK_ROOT/$_HANDLER)
+
+# Processing
+while true
+do
+  HEADERS="$(mktemp)"
+  # Get an event. The HTTP request will block until one is received
+  EVENT_DATA=$(curl -sS -LD "$HEADERS" -X GET "http://${AWS_LAMBDA_RUNTIME_API}/2018-06-01/runtime/invocation/next")
+
+  # Extract request ID by scraping response headers received above
+  REQUEST_ID=$(grep -Fi Lambda-Runtime-Aws-Request-Id "$HEADERS" | tr -d '[:space:]' | cut -d: -f2)
+
+  # Execute the handler function from the script
+  cd /opt/
+  RESPONSE=$(sourcecode=$sourcecode event=$EVENT_DATA _HANDLER='zcl_handler.clas.abap' node runtime.js)
+
+  # Send the response
+  curl -X POST "http://${AWS_LAMBDA_RUNTIME_API}/2018-06-01/runtime/invocation/$REQUEST_ID/response"  -d "$RESPONSE"
+done
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -0,0 +1,18 @@
+{
+  "private": true,
+  "name": "aws-lambda-abap-runtime",
+  "version": "0.0.1",
+  "description": "AWS Lambda ABAP custom runtime",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "{{ authors }}",
+  "license": "MIT",
+  "devDependencies": {
+    "@abaplint/transpiler": "^0.4.4"
+  },
+  "dependencies": {
+    "@abaplint/runtime": "^0.4.4"
+  }
+}
diff --git a/runtime.js b/runtime.js
@@ -0,0 +1,12 @@
+const transpiler = require('./transpiler');
+
+async function start_runtime() {
+	const handlerClassString = await transpiler.transpile(process.env._HANDLER, process.env.sourcecode);
+	const requireString = "const abap = require('@abaplint/runtime');\n";
+	const event = process.env.event;
+	const evalString = 'new (' + handlerClassString + ')().run(' + event + ')';
+	const response = eval(requireString + evalString);
+	console.log(response);
+}
+
+start_runtime();
diff --git a/scripts/create_layer.sh b/scripts/create_layer.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+zip layer.zip -r node_modules bootstrap runtime.js transpiler.js abaplint.json package.json
diff --git a/scripts/publish_layer.sh b/scripts/publish_layer.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+aws lambda publish-layer-version --layer-name abap-runtime --compatible-runtimes provided  --zip-file fileb://layer.zip
diff --git a/test/bootstrap.sh b/test/bootstrap.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+echo "start"
+sourcecode=$(cat ./test/zcl_handler.clas.abap)
+event='{"event":"eventdata"}'
+response=$(sourcecode=$sourcecode event=$event _HANDLER='zcl_handler.clas.abap' node ./test/runtime.js)
+echo $response
+echo "ende"
diff --git a/test/runtime.js b/test/runtime.js
@@ -0,0 +1,12 @@
+const transpiler = require('./../transpiler');
+
+async function start_runtime() {
+	const handlerClassString = await transpiler.transpile(process.env._HANDLER, process.env.sourcecode);
+	const requireString = "const abap = require('@abaplint/runtime');\n";
+	const event = process.env.event;
+	const evalString = 'new (' + handlerClassString + ')().run(' + event + ')';
+	const response = eval(requireString + evalString);
+	console.log(response);
+}
+
+start_runtime();
diff --git a/test/zcl_handler.clas.abap b/test/zcl_handler.clas.abap
@@ -0,0 +1,60 @@
+CLASS zcl_handler DEFINITION PUBLIC.
+
+  PUBLIC SECTION.
+    METHODS:
+      logic
+        RETURNING
+          VALUE(rv_text) TYPE string,
+      run
+        IMPORTING
+          event       TYPE string OPTIONAL
+        RETURNING
+          VALUE(response) TYPE string
+        RAISING
+          cx_static_check.
+
+ENDCLASS.
+
+CLASS zcl_handler IMPLEMENTATION.
+
+  METHOD logic.
+
+    DATA: lv_text    TYPE string,
+          lv_string  TYPE string,
+          lt_words   TYPE STANDARD TABLE OF string,
+          lt_letters TYPE STANDARD TABLE OF string,
+          lv_word    TYPE string.
+
+    lv_string = `serverless is fun`.
+
+    SPLIT lv_string AT | | INTO TABLE lt_words.
+    DELETE lt_words WHERE table_line = ''.
+
+    lv_text = |Number of words: { lines( lt_words ) }\n|.
+
+    LOOP AT lt_words INTO lv_word.
+
+      lv_text = |{ lv_text }Number of unique characters in the word: { lv_word } -|.
+
+      CLEAR lt_letters.
+      WHILE lv_word <> ''.
+        APPEND lv_word(1) TO lt_letters.
+        lv_word = lv_word+1.
+      ENDWHILE.
+
+      SORT lt_letters.
+      DELETE ADJACENT DUPLICATES FROM lt_letters.
+
+      lv_text = |{ lv_text } { lines( lt_letters ) }\n|.
+
+    ENDLOOP.
+
+    rv_text = lv_text.
+  ENDMETHOD.
+
+  METHOD run.
+    response = |hello world \n{ logic( ) } \n { event }|.
+
+  ENDMETHOD.
+
+ENDCLASS.
diff --git a/transpiler.js b/transpiler.js
@@ -0,0 +1,7 @@
+const transpiler = require('@abaplint/transpiler');
+
+exports.transpile = async function (filename, source) {
+	const t = new transpiler.Transpiler();
+  const result = await t.run([{ filename: filename, contents: source }]);
+  return result.js[0].contents;
+};

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+#!/bin/sh`
	`2`	`+`
	`3`	`+zip layer.zip -r node_modules bootstrap runtime.js transpiler.js abaplint.json package.json`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+#!/bin/sh`
	`2`	`+`
	`3`	`+aws lambda publish-layer-version --layer-name abap-runtime --compatible-runtimes provided --zip-file fileb://layer.zip`