Mirroring multiple domains

NOTE: THIS IS AN EXPERIMENTAL FEATURE, SO EXPECT BUGS

There are many use cases where it is desirable to mirror more than one domain. Since version 20130612, LODSPeaKr supports multiple domain mirroring

##Example

Suppose we have data from two different namespaces, http://a.org and http://b.org. The data from one domain is linked to data from the other domain, so we may want to serve both.

@prefix a: <http://a.org/> .
@prefix b: <http://b.org/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .

a:asd a foaf:Person;
      rdfs:label "Persona A" ;
      foaf:knows b:asd .

b:asd a foaf:Person;
      rdfs:label "Persona B";
      foaf:knows a:asd .

Setting up multiple mirroring

We want LODSPeaKr to mint URIs for each domain. To avoid possible conflicts in mirroring multiple domains (say, for http://a.org/asd and http://b.org/asd), we need to define different namespaces

In settings.inc.php, we add the following lines:

$conf['ns']['base']   = 'http://a.org/'; // You already have this one

$conf['mirror_external_uris'][""] = "http://a.org/";
$conf['mirror_external_uris']["b"] = "http://b.org/";

The "" and "b" indicate the string in the URI that will differentiate both domains. This means that

• http://a.org/asd will be mirrored as http://local/asd
• http://b.org/asd will be mirrored as http://local/b/asd

Please note that for now, you need one namespace to be empty string "". This may not be needed in the future though

It is also a good idea to add all the domains to the list of namespaces, by including:

$conf['ns']['b']   = 'http://b.org/';