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improvement and bugfix to getUrl() in IndividualSDB

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This commit is contained in:
bjl23 2010-12-14 17:31:31 +00:00
parent 80d5602dea
commit d76b4bd3bd
1 changed files with 28 additions and 32 deletions
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60
webapp/src/edu/cornell/mannlib/vitro/webapp/dao/jena/IndividualSDB.java
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@ -24,6 +24,7 @@ import com.hp.hpl.jena.ontology.OntModel;
import com.hp.hpl.jena.ontology.OntModelSpec;
import com.hp.hpl.jena.ontology.OntResource;
import com.hp.hpl.jena.query.Dataset;
import com.hp.hpl.jena.query.QueryExecution;
import com.hp.hpl.jena.query.QueryExecutionFactory;
import com.hp.hpl.jena.query.QueryFactory;
import com.hp.hpl.jena.query.QuerySolution;
@ -668,42 +669,37 @@ public class IndividualSDB extends IndividualImpl implements Individual {
private void doUrlAndAnchor() {
Model tempModel = ModelFactory.createDefaultModel();
OntModel ontModel = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
OntModel ontModel = ModelFactory.createOntologyModel(
OntModelSpec.OWL_MEM);
DatasetWrapper w = getDatasetWrapper();
Dataset dataset = w.getDataset();
dataset.getLock().enterCriticalSection(Lock.READ);
try {
if (webappDaoFactory.getJenaBaseDao().PRIMARY_LINK != null) {
String listPropertyValues =
"SELECT ?values" +
"WHERE{ GRAPH ?g { <" + this.individualURI + "> <" + webappDaoFactory.getJenaBaseDao().PRIMARY_LINK + "> ?values} }";
ResultSet links = QueryExecutionFactory.create(QueryFactory.create(listPropertyValues), dataset).execSelect();
QuerySolution result = null;
if (links.hasNext()) {
result = links.next();
try {
com.hp.hpl.jena.ontology.Individual linkInd = ((com.hp.hpl.jena.ontology.Individual)((Resource)result.get("values")).as(com.hp.hpl.jena.ontology.Individual.class));
if (webappDaoFactory.getJenaBaseDao().LINK_ANCHOR != null) {
try {
Literal l = (Literal) linkInd.getPropertyValue(webappDaoFactory.getJenaBaseDao().LINK_ANCHOR);
if (l != null) {
anchor = l.getString();
}
} catch (ClassCastException e) {}
}
if (webappDaoFactory.getJenaBaseDao().LINK_URL != null) {
try {
Literal l = (Literal) linkInd.getPropertyValue(webappDaoFactory.getJenaBaseDao().LINK_URL);
if (l != null) {
try {
url = URLDecoder.decode(l.getString(), "UTF-8");
} catch (UnsupportedEncodingException use) {}
}
} catch (ClassCastException e) {}
}
} catch (ClassCastException cce) {}
}
}
StringBuffer selectPrimaryLinkQueryBuff = new StringBuffer().append(
"SELECT ?url ?anchor \n" ).append(
"WHERE{ GRAPH ?g { \n " ).append(
" <" + this.individualURI + "> ").append(
"<" + VitroVocabulary.PRIMARY_LINK + "> " ).append(
"?link . \n").append(
" ?link <" + VitroVocabulary.LINK_URL + "> ?url . \n"
).append(
" ?link <" + VitroVocabulary.LINK_ANCHOR + "> ?anchor . \n"
).append(
"} }");
QueryExecution qexec = QueryExecutionFactory.create(
QueryFactory.create(selectPrimaryLinkQueryBuff.toString())
, dataset);
try {
ResultSet linkResults = qexec.execSelect();
if (linkResults.hasNext()) {
QuerySolution solution = linkResults.next();
this.setUrl(solution.getLiteral("url").getLexicalForm());
this.setAnchor(solution.getLiteral("anchor")
.getLexicalForm());
}
} finally {
qexec.close();
}
} finally {
tempModel.close();
ontModel.close();