SlamEngine

The NoSQL analytics engine that powers SlamData.

This is the open source site for SlamData for people who want to hack on or contribute to the development of SlamData.

For pre-built installers for the SlamData application, please visit the official SlamData website.

Checkout

git clone git@github.com:slamdata/slamengine.git .

Build

./sbt
test

Package

./sbt
one-jar

The path of the JAR will be ./target/scala-2.10/slamengine_2.10-[version]-SNAPSHOT-one-jar.jar, where [version] is the version number.

Configure

Create a configuration file with the following format:

{
  "server": {
    "port": 8080
  },

  "mountings": {
    "/": {
      "mongodb": {
        "database":       "foo",
        "connectionUri":  "mongodb://..."
      }
    }
  }
}

API

The server launches a simple JSON API.

POST /query/fs/[path]?out=tmp231

Executes the specified query at the specified path. Returns the name where the results are stored.

{
  "out": "/[path]/tmp231"
}

GET /metadata/fs/[path]

Retrieves metadata about the specified path.

{
  "children": [{"name": ".", "type": "directory"}, {"name": "bar", "type": "file"}]
}

GET /data/fs/[path]?offset=[offset]&limit=[limit]

Retrieves data from the specified path, formatted as one JSON object per line. The offset and limit parameters are optional, and may be used to page through results.

{"id":0,"guid":"03929dcb-80f6-44f3-a64c-09fc1d810c61","isActive":true,"balance":"$3,244.51","picture":"http://placehold.it/32x32","age":38,"eyeColor":"green","latitude":87.709281,"longitude":-20.549375}
{"id":1,"guid":"09639710-7f99-4fe1-a890-b1b592cbe223","isActive":false,"balance":"$1,544.65","picture":"http://placehold.it/32x32","age":27,"eyeColor":"blue","latitude":52.394181,"longitude":-0.631589}
{"id":2,"guid":"e71b7f01-ce0e-4824-ad1e-4e118872aec4","isActive":true,"balance":"$1,882.92","picture":"http://placehold.it/32x32","age":24,"eyeColor":"green","latitude":30.061766,"longitude":-106.813523}
{"id":3,"guid":"79602676-6f63-41d0-9c0a-a4f5851a43db","isActive":false,"balance":"$1,281.00","picture":"http://placehold.it/32x32","age":25,"eyeColor":"blue","latitude":14.713939,"longitude":62.253264}
{"id":4,"guid":"0024a8ad-373f-459a-8316-d50d7a8f7b10","isActive":true,"balance":"$1,908.50","picture":"http://placehold.it/32x32","age":26,"eyeColor":"brown","latitude":-21.874648,"longitude":67.270659}
{"id":5,"guid":"f7e33b92-a885-450e-8ad5-92103b1f5ff3","isActive":true,"balance":"$2,231.90","picture":"http://placehold.it/32x32","age":31,"eyeColor":"blue","latitude":58.461107,"longitude":176.40584}
{"id":6,"guid":"a2863ec1-9652-46d3-aa12-aa92308de055","isActive":false,"balance":"$1,621.67","picture":"http://placehold.it/32x32","age":34,"eyeColor":"blue","latitude":-83.908456,"longitude":67.190633}

Run the Server

java -cp slamengine.jar slamdata.engine.api.Server [config file]

Run the REPL

java -cp slamengine.jar slamdata.engine.repl.Repl [config file]

Legal

Released under the GNU AFFERO GENERAL PUBLIC LICENSE. See LICENSE file in the repository.

Copyright 2014 SlamData Inc.