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[#184] Add SPINRDF custom function call from query test
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75
s-pipes-core/src/main/java/cz/cvut/spipes/function/time/AddDaysDeprecated.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| package cz.cvut.spipes.function.time; | ||
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| import cz.cvut.spipes.constants.KBSS_TIMEF; | ||
| import cz.cvut.spipes.function.ValueFunction; | ||
| import org.apache.jena.datatypes.RDFDatatype; | ||
| import org.apache.jena.datatypes.xsd.XSDDatatype; | ||
| import org.apache.jena.datatypes.xsd.impl.XSDBaseStringType; | ||
| import org.apache.jena.datatypes.xsd.impl.XSDDateType; | ||
| import org.apache.jena.graph.Node; | ||
| import org.apache.jena.sparql.expr.NodeValue; | ||
| import org.apache.jena.sparql.function.FunctionEnv; | ||
| import org.topbraid.spin.arq.AbstractFunction2; | ||
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| import java.time.LocalDate; | ||
| import java.time.format.DateTimeParseException; | ||
| import java.util.Optional; | ||
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| /** | ||
| * Extend specified `date` by number of `days`. Return typed literal with same datatype. | ||
| * Currently, supports only xsd:date datatype. | ||
| */ | ||
| public class AddDaysDeprecated extends AbstractFunction2 implements ValueFunction { | ||
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| private static final String TYPE_IRI = KBSS_TIMEF.uri + "add-days-deprecated"; | ||
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| @Override | ||
| public String getTypeURI() { | ||
| return TYPE_IRI; | ||
| } | ||
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| @Override | ||
| protected NodeValue exec(Node date, Node days, FunctionEnv env) { | ||
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| Long daysToAdd = getDays(days); | ||
| RDFDatatype datatype = getDatatype(date); | ||
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| try { | ||
| if (datatype != null && daysToAdd != null) { | ||
| //TODO quite slow to parse everytime | ||
| String newDate = LocalDate.parse(date.getLiteral().getValue().toString()).plusDays(daysToAdd).toString(); | ||
| return NodeValue.makeNode(newDate, datatype); | ||
| } | ||
| } catch (DateTimeParseException e){ | ||
| } | ||
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| return null; | ||
| } | ||
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| private Long getDays(Node days) { | ||
| return Optional.of(days) | ||
| .filter(Node::isLiteral) | ||
| .filter(n -> n.getLiteralValue() instanceof Integer) | ||
| .map(n -> ((Integer) n.getLiteralValue()).longValue()) | ||
| .orElse(null); | ||
| } | ||
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| RDFDatatype getDatatype(Node date) { | ||
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| return Optional.of(date) | ||
| .filter(Node::isLiteral) | ||
| .map(n -> getNewDatatype(n.getLiteralDatatype())) | ||
| .orElse(null); | ||
| } | ||
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| RDFDatatype getNewDatatype(RDFDatatype datatype){ | ||
| if (datatype instanceof XSDDateType) { | ||
| return XSDDatatype.XSDdate; | ||
| } | ||
| if (datatype instanceof XSDBaseStringType) { | ||
| return XSDDatatype.XSDstring; | ||
| } | ||
| return null; | ||
| } | ||
| } |
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56 changes: 56 additions & 0 deletions
56
s-pipes-core/src/test/java/cz/cvut/spipes/function/time/AddDaysDeprecatedTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| package cz.cvut.spipes.function.time; | ||
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| import org.apache.jena.datatypes.RDFDatatype; | ||
| import org.apache.jena.datatypes.xsd.XSDDatatype; | ||
| import org.apache.jena.graph.Node; | ||
| import org.apache.jena.sparql.expr.NodeValue; | ||
| import org.junit.jupiter.api.Test; | ||
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| import java.util.stream.Stream; | ||
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| import static org.junit.jupiter.api.Assertions.assertEquals; | ||
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| public class AddDaysDeprecatedTest { | ||
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| @Test | ||
| public void execReturnsTimeFromPast() { | ||
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| AddDaysDeprecated addDays = new AddDaysDeprecated(); | ||
| Node date = getDateNode("2022-01-01").asNode(); | ||
| Node days = NodeValue.makeNodeDecimal("-1").asNode(); | ||
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| NodeValue returnedDate = addDays.exec(date, days, null); | ||
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| NodeValue expectedDate = getDateNode("2021-12-31"); | ||
| assertEquals(expectedDate, returnedDate); | ||
| } | ||
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| @Test | ||
| public void execReturnsDatatypeOfInputLiteral() { | ||
| Node days = NodeValue.makeNodeDecimal("1").asNode(); | ||
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| Stream.of(XSDDatatype.XSDdate, XSDDatatype.XSDstring).forEach( | ||
| dt -> { | ||
| Node date = getNode("2021-12-31", dt).asNode(); | ||
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| AddDaysDeprecated addDays = new AddDaysDeprecated(); | ||
| NodeValue returnedDate = addDays.exec(date, days, null); | ||
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| NodeValue expectedDate = getNode("2022-01-01", dt); | ||
| assertEquals(expectedDate, returnedDate); | ||
| }); | ||
| } | ||
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| private NodeValue getDateNode(String date){ | ||
| return getNode(date, XSDDatatype.XSDdate); | ||
| } | ||
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| private NodeValue getNode(String date, RDFDatatype datatype) { | ||
| return NodeValue.makeNode( | ||
| date, | ||
| null, | ||
| datatype.getURI() | ||
| ); | ||
| } | ||
| } |
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