Example 1 with OpenRDFException
use of org.openrdf.OpenRDFException in project backstage by zepheira.
the class Database method exportRDFa.
public String exportRDFa(int limit, String title) {
try {
RepositoryConnection con = getRepository().getConnection();
RepositoryResult<Statement> result = con.getStatements(null, null, null, false);
String out = "<html xmlns=\"http://www.w3.org/1999/xhtml\"><head><style>span {padding:4px}</style><title>" + title + "</title></head><body>";
int itemCount = 0;
Resource prevS = null;
URI prevP = null;
Value prevO = null;
while (result.hasNext() && itemCount <= limit) {
Statement st = result.next();
String currLabel = null;
Resource s = st.getSubject();
String sStr = s.toString();
// strip "http://127.0.0.1/" prefix from subj/pred
if (sStr.startsWith("http://127.0.0.1/")) {
sStr = sStr.substring(17);
}
URI p = st.getPredicate();
String pStr = p.toString();
if (pStr.startsWith("http://127.0.0.1/")) {
pStr = pStr.substring(17);
}
Value o = st.getObject();
String oStr = o.stringValue();
// Determine if our object and subjects are URI
boolean objectIsURI = false;
try {
oStr = (new java.net.URL(oStr).toString());
objectIsURI = true;
} catch (Exception e) {
objectIsURI = false;
}
boolean subjectIsURI = false;
try {
sStr = (new java.net.URL(sStr).toString());
subjectIsURI = true;
} catch (Exception e) {
subjectIsURI = false;
}
// FIXME. Use heuristic to determine if property is an image type. See above re fix.
boolean objectIsImage = false;
if (oStr.endsWith("png") || oStr.endsWith("jpg") || oStr.endsWith("gif") || oStr.endsWith("svg") || oStr.endsWith("jpeg")) {
objectIsImage = true;
}
// arrives before we need it.
if (pStr.equals("http://www.w3.org/2000/01/rdf-schema#label")) {
currLabel = oStr;
}
// group by subject, count as an item
if (s != prevS) {
itemCount++;
if (itemCount > limit)
break;
if (subjectIsURI) {
out += "<p about=\"" + sStr + "\"" + ">\n";
} else {
out += "<p about=\"#" + sStr + "\"" + ">\n";
}
}
// skip externally irrelevant triples or those we handle elsewhere
if (!pStr.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#type") && !pStr.equals("http://simile.mit.edu/2006/11/exhibit#id") && !pStr.equals("http://www.w3.org/2000/01/rdf-schema#label")) {
if (objectIsURI) {
// if we don't have a label, use subject
if (currLabel == null) {
currLabel = sStr;
}
if (objectIsImage) {
out += "<img property=\"" + pStr + "\" src=\"" + oStr + "\" alt=\"" + currLabel + "\" />";
} else {
out += "<a property=\"" + pStr + "\" href=\"" + oStr + "\">" + currLabel + "</a>";
}
} else {
out += "<span property=\"" + pStr + "\">" + oStr + "</span>\n";
}
}
prevS = s;
prevP = p;
prevO = o;
}
return out + "</body></html>";
} catch (OpenRDFException e) {
return "<html><head><title=\"Error\"></head><body>" + e.toString() + "</body></html>";
}
}
Also used :
RepositoryConnection(org.openrdf.repository.RepositoryConnection)
Statement(org.openrdf.model.Statement)
Resource(org.openrdf.model.Resource)
OpenRDFException(org.openrdf.OpenRDFException)
URI(org.openrdf.model.URI)
SailException(org.openrdf.sail.SailException)
OpenRDFException(org.openrdf.OpenRDFException)
Value(org.openrdf.model.Value)
Example 2 with OpenRDFException
use of org.openrdf.OpenRDFException in project nanopub-server by tkuhn.
the class NanopubDb method getNanopub.
public Nanopub getNanopub(String artifactCode) {
BasicDBObject query = new BasicDBObject("_id", artifactCode);
DBCursor cursor = getNanopubCollection().find(query);
if (!cursor.hasNext()) {
return null;
}
String nanopubString = cursor.next().get("nanopub").toString();
Nanopub np = null;
try {
np = new NanopubImpl(nanopubString, internalFormat);
} catch (MalformedNanopubException ex) {
throw new RuntimeException("Stored nanopub is not wellformed (this shouldn't happen)", ex);
} catch (OpenRDFException ex) {
throw new RuntimeException("Stored nanopub is corrupted (this shouldn't happen)", ex);
}
if (ServerConf.get().isCheckNanopubsOnGetEnabled() && !TrustyNanopubUtils.isValidTrustyNanopub(np)) {
throw new RuntimeException("Stored nanopub is not trusty (this shouldn't happen)");
}
return np;
}
Also used :
BasicDBObject(com.mongodb.BasicDBObject)
DBCursor(com.mongodb.DBCursor)
Nanopub(org.nanopub.Nanopub)
OpenRDFException(org.openrdf.OpenRDFException)
MalformedNanopubException(org.nanopub.MalformedNanopubException)
NanopubImpl(org.nanopub.NanopubImpl)
Aggregations
OpenRDFException (org.openrdf.OpenRDFException)2
BasicDBObject (com.mongodb.BasicDBObject)1
DBCursor (com.mongodb.DBCursor)1
MalformedNanopubException (org.nanopub.MalformedNanopubException)1
Nanopub (org.nanopub.Nanopub)1
NanopubImpl (org.nanopub.NanopubImpl)1
Resource (org.openrdf.model.Resource)1
Statement (org.openrdf.model.Statement)1
URI (org.openrdf.model.URI)1
Value (org.openrdf.model.Value)1
RepositoryConnection (org.openrdf.repository.RepositoryConnection)1
SailException (org.openrdf.sail.SailException)1
