/** Test if estimate seems reasonable. */
@Test
public void testEstimate() {
final TriplePatternElementParser<ConstantTermType, NamedVarType, AnonVarType> tpeParser =
getTriplePatternElementParser();
final ITriplePatternFragmentRequest<ConstantTermType, NamedVarType, AnonVarType> request =
new ITriplePatternFragmentRequest<ConstantTermType, NamedVarType, AnonVarType>() {
public boolean isPageRequest() {
return true;
}
public long getPageNumber() {
return 1L;
}
public String getFragmentURL() {
return "http://example.org/f";
}
public String getDatasetURL() {
return "http://example.org/";
}
public ITriplePatternElement<ConstantTermType, NamedVarType, AnonVarType> getSubject() {
return tpeParser.parseIntoTriplePatternElement("http://data.gov.be/catalog/ckanvl");
}
public ITriplePatternElement<ConstantTermType, NamedVarType, AnonVarType> getPredicate() {
return tpeParser.parseIntoTriplePatternElement(null);
}
public ITriplePatternElement<ConstantTermType, NamedVarType, AnonVarType> getObject() {
return tpeParser.parseIntoTriplePatternElement(null);
}
};
final IFragmentRequestProcessor proc = getDatasource().getRequestProcessor();
final ILinkedDataFragment ldf = proc.createRequestedFragment(request);
final ITriplePatternFragment tpf = (ITriplePatternFragment) ldf;
long totalSize = tpf.getTotalSize();
Assert.assertTrue("Estimate is too small : " + totalSize, totalSize > 100);
}
/** Test total size of empty TPF */
@Test
public void testEmpty() {
final TriplePatternElementParser<ConstantTermType, NamedVarType, AnonVarType> tpeParser =
getTriplePatternElementParser();
final ITriplePatternFragmentRequest<ConstantTermType, NamedVarType, AnonVarType> request =
new TriplePatternFragmentRequestImpl<ConstantTermType, NamedVarType, AnonVarType>(
"http://example.org/f", // fragmentURL
"http://example.org/", // datasetURL,
true, // pageNumberWasRequested,
1L, // pageNumber,
tpeParser.parseIntoTriplePatternElement("http://nothing.ldf.org"), // subject,
tpeParser.parseIntoTriplePatternElement(null), // predicate,
tpeParser.parseIntoTriplePatternElement(null)); // object
final IFragmentRequestProcessor proc = getDatasource().getRequestProcessor();
final ILinkedDataFragment ldf = proc.createRequestedFragment(request);
final ITriplePatternFragment tpf = (ITriplePatternFragment) ldf;
long totalSize = tpf.getTotalSize();
Assert.assertTrue("Estimate is too big : " + totalSize, totalSize == 0);
}
