GitHub user conker84 opened a pull request:
https://github.com/apache/zeppelin/pull/1582
[ZEPPELIN-1604] Add Neo4j interpreter and Network visualization
### What is this PR for?
This contribution would to introduce Neo4j Cypher intepreter and the new
network visualization;
at the same time would provide base APIs that allow other graph databases
(or graph framworks such as GraphX or Giraph).
### What type of PR is it?
[Feature]
### Todos
* [x] - Create the network visualization (using
[Sigma.js](http://sigmajs.org/))
* [x] - Provide base APIs to manage graph results (under:
org.apache.zeppelin.interpreter.graph.*)
* [x] - Create the Neo4j intepreter
### What is the Jira issue?
[[ZEPPELIN-1604]](https://issues.apache.org/jira/browse/ZEPPELIN-1604)
### How should this be tested?
Donwload and execute [Neo4j](https://neo4j.com/download/?ref=home) v3.x,
you can also pull a [Docker image](https://neo4j.com/developer/docker/).
In order to execute test cases, if you are running Java 7, you need to also
provide an environment variable telling the tests where to find Java 8, because
Neo4j-the-database needs it to run.
```bash
export NEO4J_JAVA=<path/to/java/home>
```
Use this statement to create a dummy dataset
```bash
%neo4j
UNWIND range(1,100) as id
CREATE (p:Person {id:id, name: "Name " + id, age: id % 3}) WITH collect(p)
as people
UNWIND people as p1
UNWIND range(1,10) as friend
WITH p1, people[(p1.id + friend) % size(people)] as p2
CREATE (p1)-[:KNOWS {years: abs(p2.id - p2.id)}]->(p2)
```
Then you can write some simple queries like:
```bash
%neo4j
%neo4j
MATCH (p:Person)-[r:KNOWS]-(p1:Person)
RETURN p, r, p1
LIMIT 10;
```
```bash
%neo4j
MATCH (p:Person)-[r:KNOWS]-(p1:Person)
RETURN p.id AS ID_A, p.name AS NAME_A, r.years AS YEARS, p1.id AS ID_B,
p1.name AS NAME_B
LIMIT 20;
```
### Screenshots
### Video
### Questions:
* Does the licenses files need update? **Yes**
* Is there breaking changes for older versions? **No**
* Does this needs documentation? **Yes**. I have create the neo4j.md file
in /docs/intepreter folder
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/conker84/zeppelin master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/1582.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1582
----
commit 4e685ccf2bc23c41f7d48569af584ee535feb474
Author: conker84 <sant...@gmail.com>
Date: 2016-10-26T20:07:17Z
First commit
commit acc4307dd1b7f90dedf76ecb8a4b27e93658399f
Author: conker84 <sant...@gmail.com>
Date: 2016-10-26T21:40:47Z
Added the graph footer to provide detailed data information
commit 72f12036047e8fdd518712527380730ac139988d
Author: conker84 <sant...@gmail.com>
Date: 2016-10-26T22:15:39Z
Code clean
commit bd1b0f23fd1b5e35e5a3c125fff50abccebc4ba3
Author: conker84 <sant...@gmail.com>
Date: 2016-10-29T13:37:30Z
Changes:
Move the GraphResult to zeppelin-intepreter package in order to use as
base api for other graph databases.
Added neo4.md to the documentation.
Prevented the nodes overlap.
commit 251fba0a16ded784be33995ba83abe0cb23f388a
Author: conker84 <sant...@gmail.com>
Date: 2016-10-29T13:43:02Z
Added doc images
commit bf68eb6b6ee28de7e9fa8c67c223130d7b802949
Author: conker84 <sant...@gmail.com>
Date: 2016-10-29T13:45:27Z
doc fix
commit c8249b6c45c1b5957957ea3cac13d8fb4c17ef5d
Author: conker84 <sant...@gmail.com>
Date: 2016-11-01T13:43:07Z
Removed Jackson Dependencies
commit d5997778c2edf9b75cef66d36ec95bf5a14fc5bb
Author: conker84 <sant...@gmail.com>
Date: 2016-11-01T14:04:59Z
reactivate "goog-webfont-dl" task
commit 9aefddfc5a95fb469f21cec1a968cc917020dea5
Author: conker84 <sant...@gmail.com>
Date: 2016-11-02T13:47:48Z
Added tests and changed network icon
commit 793f72922cd9acbe4a5cbf26986d4c4ceedf9df2
Author: conker84 <sant...@gmail.com>
Date: 2016-11-02T21:07:05Z
Bugfixes
----
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