Blazegraph Setup

Install Blazegraph under Tomcat

• Get the war file (​https://sourceforge.net/projects/bigdata/files/bigdata/2.1.4/):

  wget https://downloads.sourceforge.net/project/bigdata/bigdata/2.1.4/blazegraph.war?r=https%3A%2F%2Fsourceforge.net%2Fprojects%2Fbigdata%2Ffiles%2Fbigdata%2F2.1.4%2F&ts=1490662771&use_mirror=cytranet

• Rename to <whatever_you_want_the_app_called>.war. I'll use an example of blazegraph.war for this.

• Move the war file into: /var/lib/tomcat7/webapps

• Give correct permissions to the war file

( Restart tomcat and blazegraph should be accessible at: /blazegraph

Install TGN Vocabulary

Warning: This is a 40 GB dataset. This can take over a day to post.

• Get the full vocabulary download and unzip it: wget http://vocab.getty.edu/dataset/tgn/full.zip unzip full.zip

• Push the content to Blazegraph under the context of something like http://vocab.getty.edu/tgn. This commend should be like: curl -H 'Content-Type: text/turtle' --upload-file TGNOut_Full.nt -X POST "http://localhost/blazegraph/sparql?context-uri=http://vocab.getty.edu/tgn"

• Once complete, verify that it is loaded by going to Blazegraph and looking for the uri: http://vocab.getty.edu/tgn/2507399 in the Explore tab. If it shows incoming and outgoing links, it is successfully loaded.

Install AAT Vocabulary

• Get the full vocabulary download and unzip it: wget http://vocab.getty.edu/dataset/aat/full.zip unzip full.zip

• Push the content to Blazegraph under the context of something like http://vocab.getty.edu/aat. This commend should be like: curl -H 'Content-Type: text/turtle' --upload-file AATOut_Full.nt -X POST "http://localhost/blazegraph/sparql?context-uri=http://vocab.getty.edu/aat"

• Once complete, verify that it is loaded by going to Blazegraph and looking for the uri: http://vocab.getty.edu/aat/300312143 in the Explore tab. If it shows incoming and outgoing links, it is successfully loaded.

To Delete A Vocabulary

One may have loaded a vocabulary incorrectly or need to clear out a loaded vocabulary to load in a newer version. Below is a sample command for removing all of the TGN triples by using their context: curl --get -X DELETE -H 'Accept: application/xml' 'http://localhost/blazegraph/sparql' --data-urlencode 'c=http://vocab.getty.edu/tgn'

• For a further example and more documentation on deletions commands, see: ​https://wiki.blazegraph.com/wiki/index.php/REST_API#DELETE_with_Access_Path . (There is a section after "Caution" with the following for deleting all matching a particular subject. Essentially it supports "s" for subject, "p" for predicate, "o" for object, and "c" for context as url variables). curl --get -X DELETE -H 'Accept: application/xml' 'http://localhost:8080/bigdata/sparql' --data-urlencode 's=http://www.w3.org/People/Berners-Lee/card#i'