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Installation

Quick Start

Install the dependencies via:

$ ./install.sh

Step-by-Step Guide (Debugging Purpose)

Please follow the steps below in order for an smooth installation process.

Step 1: Installing Python Dependencies

In the project root directory, run:

$ pip3 install -r requirements.txt

Step 2: Installing Node Modules

In the project root directory, run:

$ cd hpg_construction
$ npm install

Then:

$ cd hpg_construction/lib/jaw/dom-points-to
$ npm install

Finally:

$ cd hpg_construction/lib/jaw/normalization
$ npm install

Step 3: Installing Neo4j

1- Install Java.

Follow the tutorial here to install the latest version of Java.

2- Setup Neo4j.

This prototype has been tested with Neo4j 3.5.9, and Neo4j 4.2.3 community edition.

Option 1: Using JAW with Neo4j in Docker In this case, you only need docker. No further installation is required. Please see here for information on how to use JAW with neo4j running inside docker.

Option 2: Installing in Host Machine.

You can download neo4j from the neo4j download center. You can also install it, among others, via apt-get or homebrew. For example:

$ cd installation
$ # for linux, neo4j 3.5.x
$ ./linux_neo4j_installation.sh
$ # for macos, neo4j 3.5.x
$ ./macos_neo4j_installation.sh

If you encountered any errors, please checkout the Neo4j Debian Packages repository for potential changes.

For more information, see here, or here.

Note: the graph import commands and database activation may slightly differ across neo4j versions. If you want to use another version of neo4j, you may need to change the graph import command (i.e., NEO4J_IMPORT_COMMAND), as well as the database activation logic (i.e., dbms.active_database) in API_neo4j_prepare function of hpg_neo4j/db_utility package.

3- Set the intitial Neo4j Password.

By default, the password should be set as root for the user neo4j.

$ neo4j-admin set-initial-password root

Note: the default username and password should be neo4j and neo4j, respectively. But this has to be changed so that neo4j allows driver connections. If the above command did not work, try using the cypher-shell:

connect to cypher shell via:

$ cypher-shell -u neo4j -p neo4j

then run:

CALL dbms.changePassword('root');
:exit

If you choose a different password, you must set it in .env with NEO4J_PASS=your-password.

4- Make sure you can see the followings (uncommented) in your neo4j.conf file:

dbms.connector.bolt.enabled=true
dbms.connector.bolt.listen_address=0.0.0.0:7687