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algorithm-visualizer-server
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Use AWS Lambda instead of Docker to compile Java

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master
Jason Park 7 years ago
parent c3c320595b
commit 8307c5d849
8 changed files with 138 additions and 13 deletions
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6
CONTRIBUTING.md
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@ -20,10 +20,14 @@ Are you a first-timer in contributing to open source? [These guidelines](https:/
4. Create `.env.local` in the project root:
```bash
# By putting dummy values, GitHub sign in will not work locally
GITHUB_CLIENT_ID = dummy
GITHUB_CLIENT_SECRET = dummy
# By putting dummy values, extracting visualizing commands will not work locally (except for JavaScript).
AWS_ACCESS_KEY_ID = dummy
AWS_SECRET_ACCESS_KEY = dummy
```
It's safe to put any dummy value to them unless you need the GitHub sign in functionality locally.
5. Install dependencies, and run the server.

89
package-lock.json generated
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@ -198,6 +198,22 @@
"resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
"integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
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"version": "2.480.0",
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"requires": {
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"jmespath": "0.15.0",
"querystring": "0.2.0",
"sax": "1.2.1",
"url": "0.10.3",
"uuid": "3.3.2",
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}
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@ -213,6 +229,11 @@
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"dev": true
},
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@ -258,6 +279,16 @@
"concat-map": "0.0.1"
}
},
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"base64-js": "^1.0.2",
"ieee754": "^1.1.4",
"isarray": "^1.0.0"
}
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@ -516,6 +547,11 @@
"resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
"integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
},
"events": {
"version": "1.1.1",
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"integrity": "sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ="
},
"express": {
"version": "4.17.1",
"resolved": "https://registry.npmjs.org/express/-/express-4.17.1.tgz",
@ -711,6 +747,11 @@
"safer-buffer": ">= 2.1.2 < 3"
}
},
"ieee754": {
"version": "1.1.8",
"resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.8.tgz",
"integrity": "sha1-vjPUCsEO8ZJnAfbwii2G+/0a0+Q="
},
"indent-string": {
"version": "2.1.0",
"resolved": "https://registry.npmjs.org/indent-string/-/indent-string-2.1.0.tgz",
@ -772,12 +813,22 @@
"integrity": "sha1-HxbkqiKwTRM2tmGIpmrzxgDDpm0=",
"dev": true
},
"isarray": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
"integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE="
},
"isexe": {
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"integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
"dev": true
},
"jmespath": {
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},
"js-tokens": {
"version": "4.0.0",
"resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
@ -1091,11 +1142,21 @@
"ipaddr.js": "1.9.0"
}
},
"punycode": {
"version": "1.3.2",
"resolved": "https://registry.npmjs.org/punycode/-/punycode-1.3.2.tgz",
"integrity": "sha1-llOgNvt8HuQjQvIyXM7v6jkmxI0="
},
"qs": {
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"resolved": "https://registry.npmjs.org/querystring/-/querystring-0.2.0.tgz",
"integrity": "sha1-sgmEkgO7Jd+CDadW50cAWHhSFiA="
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"range-parser": {
"version": "1.2.1",
"resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
@ -1185,6 +1246,11 @@
"resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
"integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
},
"sax": {
"version": "1.2.1",
"resolved": "https://registry.npmjs.org/sax/-/sax-1.2.1.tgz",
"integrity": "sha1-e45lYZCyKOgaZq6nSEgNgozS03o="
},
"semver": {
"version": "5.7.0",
"resolved": "https://registry.npmjs.org/semver/-/semver-5.7.0.tgz",
@ -1494,6 +1560,15 @@
"resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
"integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
},
"url": {
"version": "0.10.3",
"resolved": "https://registry.npmjs.org/url/-/url-0.10.3.tgz",
"integrity": "sha1-Ah5NnHcF8hu/N9A861h2dAJ3TGQ=",
"requires": {
"punycode": "1.3.2",
"querystring": "0.2.0"
}
},
"utils-merge": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
@ -1534,6 +1609,20 @@
"integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
"dev": true
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1
package.json
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@ -26,6 +26,7 @@
"tslint": "^5.16.0"
},
"dependencies": {
"aws-sdk": "^2.480.0",
"axios": "^0.19.0",
"body-parser": "^1.18.2",
"compression": "^1.7.3",

8
src/config/environments.ts
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@ -27,6 +27,9 @@ const {
GITHUB_CLIENT_ID,
GITHUB_CLIENT_SECRET,
AWS_ACCESS_KEY_ID,
AWS_SECRET_ACCESS_KEY,
} = process.env;
const isEnabled = (v: string) => v === '1';
@ -48,6 +51,8 @@ const missingVars = [
] : []),
'GITHUB_CLIENT_ID',
'GITHUB_CLIENT_SECRET',
'AWS_ACCESS_KEY_ID',
'AWS_SECRET_ACCESS_KEY',
].filter(variable => process.env[variable] === undefined);
if (missingVars.length) throw new Error(`The following environment variables are missing: ${missingVars.join(', ')}`);
@ -71,3 +76,6 @@ export const credentials: ServerOptions | undefined = isEnabled(CREDENTIALS_ENAB
export const githubClientId = GITHUB_CLIENT_ID;
export const githubClientSecret = GITHUB_CLIENT_SECRET;
export const awsAccessKeyId = AWS_ACCESS_KEY_ID;
export const awsSecretAccessKey = AWS_SECRET_ACCESS_KEY;

2
src/tracers/DockerTracer.ts
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@ -15,8 +15,6 @@ export class DockerTracer extends Tracer {
super(lang);
this.directory = path.resolve(__dirname, lang);
this.imageName = `tracer-${this.lang}`;
this.build = this.build.bind(this);
}
build(release: Release) {

33
src/tracers/LambdaTracer.ts
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@ -0,0 +1,33 @@
import AWS from 'aws-sdk';
import express from 'express';
import { Release, Tracer } from 'tracers/Tracer';
import { awsAccessKeyId, awsSecretAccessKey } from 'config/environments';
import { BadRequest } from 'ts-httpexceptions';
export class LambdaTracer extends Tracer {
static lambda = new AWS.Lambda({
region: 'us-east-2',
accessKeyId: awsAccessKeyId,
secretAccessKey: awsSecretAccessKey,
});
async build(release: Release) {
}
route(router: express.Router) {
router.post(`/${this.lang}`, (req, res, next) => {
const {code} = req.body;
LambdaTracer.lambda.invoke({
FunctionName: `extractor-${this.lang}`,
InvocationType: 'RequestResponse',
Payload: JSON.stringify(code),
}, function (err, data) {
if (err) return next(err);
if (typeof data.Payload !== 'string') return next(new Error('Unexpected Payload Type'));
const payload = JSON.parse(data.Payload);
if (!payload.success) return next(new BadRequest(payload.errorMessage));
res.send(payload.commands);
});
});
}
}

8
src/tracers/java/Dockerfile
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@ -1,8 +0,0 @@
FROM openjdk:8
ARG tag_name
RUN curl --create-dirs -o /usr/local/lib/algorithm-visualizer.jar -L "https://github.com/algorithm-visualizer/tracers.java/releases/download/${tag_name}/algorithm-visualizer.jar"
CMD javac -cp /usr/local/lib/algorithm-visualizer.jar Main.java \
&& java -cp /usr/local/lib/algorithm-visualizer.jar:. Main

4
src/tracers/java/JavaTracer.ts
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@ -1,6 +1,6 @@
import { DockerTracer } from 'tracers/DockerTracer';
import { LambdaTracer } from 'tracers/LambdaTracer';
export class JavaTracer extends DockerTracer {
export class JavaTracer extends LambdaTracer {
constructor() {
super('java');
}

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