Example usage for java.util Optional ifPresent

List of usage examples for java.util Optional ifPresent

  1. HOME
  2. Java
  3. java
  4. java.util.*
  5. Optional
  6. ifPresent

Introduction

In this page you can find the example usage for java.util Optional ifPresent.

Prototype

public void ifPresent(Consumer<? super T> action)

Source Link

Document

If a value is present, performs the given action with the value, otherwise does nothing.

Usage

From source file:org.trellisldp.constraint.LdpConstraintsTest.java

@Test
public void testTooManyMembershipTriples() {
    final Optional<ConstraintViolation> res = svc.constrainedBy(LDP.IndirectContainer,
            asGraph("/tooManyMembershipTriples.ttl", domain + "foo"), domain).findFirst();
    assertTrue(res.isPresent(), "no constraint violation found!");
    res.ifPresent(violation -> assertEquals(Trellis.InvalidCardinality, violation.getConstraint(),
            "no InvalidCardinality violation!"));
}

From source file:org.trellisldp.file.FileUtilsTest.java

@Test
public void testParseQuad() {
    final Optional<Quad> quad = FileUtils.parseQuad("<trellis:data/resource> <http://purl.org/dc/terms/title> "
            + "\"Some title\" <http://www.trellisldp.org/ns/trellis#PreferUserManaged> .").findFirst();
    assertTrue(quad.isPresent(), "Quad isn't present in parsed string!");
    quad.ifPresent(q -> {
        assertEquals("trellis:data/resource", ((IRI) q.getSubject()).getIRIString(), "Incorrect subject!");
        assertEquals(DC.title, q.getPredicate(), "Incorrect predicate!");
        assertEquals("Some title", ((Literal) q.getObject()).getLexicalForm(), "Incorrect literal object!");
        assertTrue(q.getGraphName().isPresent(), "Graph name isn't present!");
        q.getGraphName().ifPresent(g -> assertEquals(Trellis.PreferUserManaged, g, "Incorrect graph name!"));
    });/*from w  w  w.ja  v  a  2  s  .co  m*/
}

From source file:org.trellisldp.file.FileUtilsTest.java

@Test
public void testParseQuadWithComment() {
    final Optional<Quad> quad = FileUtils
            .parseQuad("<trellis:data/resource> <http://purl.org/dc/terms/description> "
                    + "\"A description\" <http://www.trellisldp.org/ns/trellis#PreferUserManaged> . # some comment")
            .findFirst();/*from w  ww . ja v  a 2  s.c om*/
    assertTrue(quad.isPresent(), "Quad isn't present in parsed string!");
    quad.ifPresent(q -> {
        assertEquals("trellis:data/resource", ((IRI) q.getSubject()).getIRIString(), "Incorrect subject!");
        assertEquals(DC.description, q.getPredicate(), "Incorrect predicate!");
        assertEquals("A description", ((Literal) q.getObject()).getLexicalForm(), "Incorrect literal object!");
        assertTrue(q.getGraphName().isPresent(), "Graph name isn't present!");
        q.getGraphName().ifPresent(g -> assertEquals(Trellis.PreferUserManaged, g, "Incorrect graph name!"));
    });
}

From source file:org.trellisldp.file.FileUtilsTest.java

@Test
public void testParseQuadNoGraph() {
    final Optional<Quad> quad = FileUtils
            .parseQuad("<trellis:data/resource> <http://purl.org/dc/terms/title> " + "\"A different title\" .")
            .findFirst();//from ww w.j  ava 2  s. c om
    assertTrue(quad.isPresent(), "Quad isn't present in parsed Triple string!");
    quad.ifPresent(q -> {
        assertEquals("trellis:data/resource", ((IRI) q.getSubject()).getIRIString(), "Incorrect subject!");
        assertEquals(DC.title, q.getPredicate(), "Incorrect predicate!");
        assertEquals("A different title", ((Literal) q.getObject()).getLexicalForm(),
                "Incorrect literal object!");
        assertFalse(q.getGraphName().isPresent(), "Graph name shouldn't have been present!");
    });
}

From source file:org.trellisldp.http.impl.GetHandler.java

private ResponseBuilder basicGetResponseBuilder(final Resource res, final Optional<RDFSyntax> syntax) {
    final ResponseBuilder builder = ok();

    // Standard HTTP Headers
    builder.lastModified(from(res.getModified()));

    final IRI model;

    if (isNull(req.getExt())) {
        syntax.ifPresent(s -> {
            builder.header(VARY, PREFER);
            builder.type(s.mediaType);/*from w ww.ja  va2 s.c  o m*/
        });

        model = res.getBinary().isPresent() && syntax.isPresent() ? LDP.RDFSource : res.getInteractionModel();
        // Link headers from User data
        res.getTypes().forEach(type -> builder.link(type.getIRIString(), "type"));
        res.getInbox().map(IRI::getIRIString).ifPresent(inbox -> builder.link(inbox, "inbox"));
        res.getAnnotationService().map(IRI::getIRIString)
                .ifPresent(svc -> builder.link(svc, annotationService.getIRIString()));
    } else {
        model = LDP.RDFSource;
    }

    // Add LDP-required headers
    ldpResourceTypes(model).forEach(type -> {
        builder.link(type.getIRIString(), "type");
        // Mementos don't accept POST or PATCH
        if (LDP.Container.equals(type) && !res.isMemento()) {
            builder.header(ACCEPT_POST, MEDIA_TYPES.stream().map(mt -> mt.getType() + "/" + mt.getSubtype())
                    // text/html is excluded
                    .filter(mt -> !TEXT_HTML.equals(mt)).collect(joining(",")));
        } else if (LDP.RDFSource.equals(type) && !res.isMemento()) {
            builder.header(ACCEPT_PATCH, APPLICATION_SPARQL_UPDATE);
        }
    });

    // Memento-related headers
    if (res.isMemento()) {
        builder.header(MEMENTO_DATETIME, from(res.getModified()));
    } else {
        builder.header(VARY, ACCEPT_DATETIME);
    }

    return builder;
}

From source file:org.trellisldp.rosid.file.FileResourceServiceTest.java

@Test
public void testWriteResource() {
    final Dataset data = rdf.createDataset();
    data.add(rdf.createQuad(Trellis.PreferUserManaged, testResource, DC.title, rdf.createLiteral("A title")));
    data.add(rdf.createQuad(Trellis.PreferServerManaged, testResource, type, LDP.RDFSource));
    assertFalse(service.get(testResource).isPresent());
    assertFalse(service.get(testResource, now()).isPresent());

    assertTrue(service.put(testResource, data));
    final Optional<Resource> res = service.get(testResource, now());
    assertTrue(res.isPresent());/*from  ww w . j ava  2  s  .  c o m*/
    res.ifPresent(r -> {
        assertEquals(LDP.RDFSource, r.getInteractionModel());
        assertEquals(testResource, r.getIdentifier());
        assertTrue(r.stream().anyMatch(q -> q.getPredicate().equals(DC.title)));
        assertTrue(r.getModified().isBefore(now()));
    });
    final Optional<Resource> res2 = service.get(testResource);
    assertTrue(res2.isPresent());
    res2.ifPresent(r -> {
        assertEquals(LDP.RDFSource, r.getInteractionModel());
        assertEquals(testResource, r.getIdentifier());
        assertTrue(r.stream().anyMatch(q -> q.getPredicate().equals(DC.title)));
        assertTrue(r.getModified().isBefore(now()));
    });
}

From source file:org.trellisldp.rosid.file.ResourceWriterTest.java

@Test
public void testCacheWriter1() throws IOException {
    final Instant time = parse("2017-03-15T01:23:45Z");
    assertTrue(CachedResource.write(directory2, identifier, time));
    final Optional<Resource> resource = CachedResource.find(directory2, identifier);
    assertTrue(resource.isPresent());// w w  w  . j av a 2 s  . co m
    resource.ifPresent(res -> {
        assertEquals(identifier, res.getIdentifier());
        assertEquals(LDP.RDFSource, res.getInteractionModel());
        assertFalse(res.getMembershipResource().isPresent());
        assertFalse(res.getMemberRelation().isPresent());
        assertFalse(res.getMemberOfRelation().isPresent());
        assertFalse(res.getInsertedContentRelation().isPresent());
        assertFalse(res.getBinary().isPresent());
        assertFalse(res.isMemento());
        assertEquals(of(rdf.createIRI("http://example.org/receiver/inbox")), res.getInbox());
        assertEquals(parse("2017-03-03T02:34:12Z"), res.getModified());
        assertEquals(2L, res.getTypes().size());
        assertTrue(res.getTypes().contains(rdf.createIRI("http://example.org/types/Foo")));
        assertTrue(res.getTypes().contains(rdf.createIRI("http://example.org/types/Bar")));
        assertEquals(0L, res.stream().filter(TestUtils.isContainment.or(TestUtils.isMembership)).count());

        final List<Triple> triples = res.stream().filter(TestUtils.isUserManaged).map(Quad::asTriple)
                .collect(toList());
        assertEquals(5L, triples.size());
        assertTrue(triples.contains(
                rdf.createTriple(identifier, LDP.inbox, rdf.createIRI("http://example.org/receiver/inbox"))));
        assertTrue(triples
                .contains(rdf.createTriple(identifier, type, rdf.createIRI("http://example.org/types/Foo"))));
        assertTrue(triples
                .contains(rdf.createTriple(identifier, type, rdf.createIRI("http://example.org/types/Bar"))));
        assertTrue(triples
                .contains(rdf.createTriple(identifier, RDFS.label, rdf.createLiteral("A label", "eng"))));
        assertTrue(triples.contains(rdf.createTriple(rdf.createIRI("http://example.org/some/other/resource"),
                RDFS.label, rdf.createLiteral("Some other resource", "eng"))));

        final List<VersionRange> mementos = res.getMementos();
        assertEquals(3L, mementos.size());
        assertEquals(parse("2017-02-15T10:05:00Z"), mementos.get(0).getFrom());
        assertEquals(parse("2017-02-15T11:15:00Z"), mementos.get(0).getUntil());
        assertEquals(parse("2017-02-15T11:15:00Z"), mementos.get(1).getFrom());
        assertEquals(parse("2017-03-02T02:34:12Z"), mementos.get(1).getUntil());
        assertEquals(parse("2017-03-02T02:34:12Z"), mementos.get(2).getFrom());
        assertEquals(parse("2017-03-03T02:34:12Z"), mementos.get(2).getUntil());
    });
}

From source file:org.trellisldp.rosid.file.ResourceWriterTest.java

@Test
public void testCacheWriter2() throws IOException {
    CachedResource.write(directory4, identifier.getIRIString());
    final Optional<Resource> resource = CachedResource.find(directory4, identifier);
    assertTrue(resource.isPresent());//from  ww  w . j a  v  a 2s.  c  o  m
    resource.ifPresent(res -> {
        assertEquals(identifier, res.getIdentifier());
        assertEquals(LDP.RDFSource, res.getInteractionModel());
        assertFalse(res.getMembershipResource().isPresent());
        assertFalse(res.getMemberRelation().isPresent());
        assertFalse(res.getMemberOfRelation().isPresent());
        assertFalse(res.getInsertedContentRelation().isPresent());
        assertFalse(res.getBinary().isPresent());
        assertFalse(res.isMemento());
        assertFalse(res.getInbox().isPresent());
        assertEquals(parse("2017-02-15T10:05:00Z"), res.getModified());
        assertEquals(0L, res.getTypes().size());
        assertEquals(0L, res.stream().filter(TestUtils.isContainment.or(TestUtils.isMembership)).count());

        final List<Triple> triples = res.stream().filter(TestUtils.isUserManaged).map(Quad::asTriple)
                .collect(toList());
        assertEquals(0L, triples.size());

        final List<VersionRange> mementos = res.getMementos();
        assertEquals(0L, mementos.size());
    });
}

From source file:org.trellisldp.rosid.file.VersionedResourceTest.java

@Test
public void testReadData() {
    final Optional<ResourceData> data = VersionedResource.read(directory, "trellis:repository/versioned", MAX);
    assertTrue(data.isPresent());/*from   w  w  w .j  a  va  2 s . co m*/
    data.ifPresent(d -> {
        assertEquals("trellis:repository/versioned", d.getId());
        assertEquals("http://www.w3.org/ns/ldp#BasicContainer", d.getLdpType());
        assertEquals("http://example.org/receiver/inbox", d.getInbox());
        assertTrue(d.getUserTypes().contains("http://example.org/types/Foo"));
        assertTrue(d.getUserTypes().contains("http://example.org/types/Bar"));
    });
}

From source file:software.coolstuff.springframework.owncloud.service.impl.rest.AbstractPipedStreamRestSynchronizerImpl.java

protected void execute(ExecutionEnvironment executionEnvironment) {
    Validate.notNull(executionEnvironment);
    Optional<ConsumerWithoutArgument> afterExecutionCallback = executionEnvironment.getAfterExecutionCallback();
    try {//from w  w w .j  av  a2  s.  c o  m
        callRestWith(executionEnvironment);
    } catch (RuntimeException runtimeException) {
        executionEnvironment.getRuntimeExceptionHandler()
                .ifPresent(consumer -> consumer.accept(runtimeException));
        throw runtimeException;
    } finally {
        afterExecutionCallback.ifPresent(ConsumerWithoutArgument::apply);
    }
}