/**
* Fills the cache c with the data contained in the data source described by kb
*
* @param c The cache to be filled
*/
public void fillCache(ACache c) {
Logger logger = LoggerFactory.getLogger("LIMES");
try {
// in case a CSV is used, endpoint is the file to read
BufferedReader reader = new BufferedReader(new FileReader(kb.getEndpoint()));
logger.info("Reading vectors from " + kb.getEndpoint());
String s = reader.readLine();
String uri;
// read properties. Vectors are assumed to have only one property,
// which is that used by the user to in the description of the similarity
// to be used. In general, we assume that vectors can only be compared
// with other vectors.
ArrayList<String> properties = new ArrayList<String>();
properties.add(kb.getProperties().get(0));
while (s != null) {
if (s.contains(SEP)) {
uri = s.substring(1, s.indexOf(SEP) - 1);
c.addTriple(uri, properties.get(0), s.substring(s.indexOf(SEP)));
}
s = reader.readLine();
}
reader.close();
logger.info("Retrieved " + c.size() + " statements");
} catch (Exception e) {
logger.error(MarkerFactory.getMarker("FATAL"), "Exception:" + e.getMessage());
e.printStackTrace();
}
}
private List<Set<String>> buildIndex(ACache c, String p) {
List<Set<String>> index = new ArrayList<>();
// Phase 1: Build index
for (String uri : c.getAllUris()) {
Set<String> values = new NamedHashSet<>(c.getInstance(uri).getProperty(p), uri);
if (values.size() > 0) {
index.add(values);
}
}
SetSizeQuicksort.sort(index);
return index;
}
@Test
public void begin() {
Set<String> dates = new TreeSet<String>();
for (Instance s : source.getAllInstances()) {
String d = s.getProperty("beginsAtDateTime").first();
if (!dates.contains(d)) dates.add(d);
String e = s.getProperty("endsAtDateTime").first();
if (!dates.contains(e)) dates.add(e);
}
for (String s : dates) {
System.out.println(s);
}
}
@Test
public void similarity() {
System.out.println("similarity");
LinkSpecification ls =
new LinkSpecification(
"tmp_is_started_by(x.beginsAtDateTime|endsAtDateTime,y.beginsAtDateTime|endsAtDateTime)",
1.0);
DynamicPlanner p = new DynamicPlanner(source, target);
ExecutionEngine e = new SimpleExecutionEngine(source, target, "?x", "?y");
AMapping m = e.execute(ls, p);
System.out.println(m);
AMapping m2 = MappingFactory.createDefaultMapping();
for (Instance s : source.getAllInstances()) {
for (Instance t : target.getAllInstances()) {
IsStartedByMeasure measure = new IsStartedByMeasure();
double sim =
measure.getSimilarity(
s, t, "beginsAtDateTime|endsAtDateTime", "beginsAtDateTime|endsAtDateTime");
if (sim != 0) m2.add(s.getUri(), t.getUri(), sim);
}
}
assertTrue(m.equals(m2));
}
@Before
public void setUp() {
source = new MemoryCache();
target = new MemoryCache();
// create source cache
source.addTriple("S1", "surname", "georgala");
source.addTriple("S1", "name", "kleanthi");
source.addTriple("S1", "age", "26");
source.addTriple("S2", "surname", "sandra");
source.addTriple("S2", "name", "lukas");
source.addTriple("S2", "age", "13");
source.addTriple("S3", "surname", "depp");
source.addTriple("S3", "name", "johny");
source.addTriple("S3", "age", "52");
source.addTriple("S4", "surname", "swift");
source.addTriple("S4", "name", "taylor,maria");
source.addTriple("S4", "age", "25");
source.addTriple("S5", "surname", "paok");
source.addTriple("S5", "name", "ole");
source.addTriple("S5", "age", "56");
target.addTriple("T1", "surname", "georg");
target.addTriple("T1", "name", "klea");
target.addTriple("T1", "age", "26");
target.addTriple("T2", "surname", "sandra");
target.addTriple("T2", "name", "lukas");
target.addTriple("T2", "age", "13");
target.addTriple("T3", "surname", "derp");
target.addTriple("T3", "name", "johnny");
target.addTriple("T3", "age", "52");
target.addTriple("T4", "surname", "swift");
target.addTriple("T4", "name", "taylor");
target.addTriple("T4", "age", "25");
target.addTriple("T5", "surname", "paok");
target.addTriple("T5", "name", "oleole");
target.addTriple("T5", "age", "56");
}
@Before
public void setUp() {
source = new MemoryCache();
target = new MemoryCache();
// create source cache
source.addTriple("S1", "beginsAtDateTime", "2015-05-20T08:21:04+02:00");
source.addTriple("S1", "endsAtDateTime", "2015-05-20T08:22:04+02:00");
source.addTriple("S2", "beginsAtDateTime", "2015-05-20T08:21:04+02:00");
source.addTriple("S2", "endsAtDateTime", "2015-05-20T08:22:04+02:00");
source.addTriple("S3", "beginsAtDateTime", "2015-05-20T08:24:04+02:00");
source.addTriple("S3", "endsAtDateTime", "2015-05-20T08:25:04+02:00");
source.addTriple("S4", "beginsAtDateTime", "2015-05-20T08:31:04+02:00");
source.addTriple("S4", "endsAtDateTime", "2015-05-20T08:32:04+02:00");
source.addTriple("S5", "beginsAtDateTime", "2015-05-20T09:21:04+02:00");
source.addTriple("S5", "endsAtDateTime", "2015-05-20T09:24:04+02:00");
source.addTriple("S6", "beginsAtDateTime", "2015-05-20T08:51:04+02:00");
source.addTriple("S6", "endsAtDateTime", "2015-05-20T09:24:04+02:00");
source.addTriple("S7", "beginsAtDateTime", "2015-05-20T08:41:04+02:00");
source.addTriple("S7", "endsAtDateTime", "2015-05-20T08:51:04+02:00");
source.addTriple("S8", "beginsAtDateTime", "2015-05-20T08:41:04+02:00");
source.addTriple("S8", "endsAtDateTime", "2015-05-20T08:43:04+02:00");
source.addTriple("S9", "beginsAtDateTime", "2015-05-20T08:21:04+02:00");
source.addTriple("S9", "endsAtDateTime", "2015-05-20T08:34:04+02:00");
source.addTriple("S10", "beginsAtDateTime", "2015-05-20T09:21:04+02:00");
source.addTriple("S10", "endsAtDateTime", "2015-05-20T09:22:04+02:00");
source.addTriple("S11", "beginsAtDateTime", "2015-05-20T09:21:04+02:00");
source.addTriple("S11", "endsAtDateTime", "2015-05-20T09:22:04+02:00");
source.addTriple("S12", "beginsAtDateTime", "2015-05-20T08:31:04+02:00");
source.addTriple("S12", "endsAtDateTime", "2015-05-20T08:45:04+02:00");
target = source;
}