Examples of org.apache.stanbol.entityhub.servicesapi.model.Representation

Package org.apache.stanbol.entityhub.servicesapi.model

Examples of org.apache.stanbol.entityhub.servicesapi.model.Representation

org.apache.stanbol.entityhub.servicesapi.model.Representation
This interface is used by the Entityhub to define representations. It is used for any kind of CRUD operations on the {@link Yard} (the storage of the Entityhub).
The goal if this interface is to allow implementation based on different storage solutions such as CMS, full text indices, triple stores, noSQL data stores ...
TODO: handling the differences between "NaturalLanguageText", "References" and "normal" values feels to complex! Need to reevaluate if this differentiation is needed or can be done in a more easy way! TODO: add an API that allows to attach Content! TODO: Do we need subNodes or are "references" enough. TODO: Check to use also Wrappers for fields and values (in analogy to {@link Reference} and {@link Text}. PRO: clearer API CON: more Objects to be garbage collected. @author Rupert Westenthaler

        Cache cache = getCache();
        Entity entity = null;
        long start = System.currentTimeMillis();
        if (cache != null) {
            try {
                Representation rep = cache.getRepresentation(id);
                if (rep != null) {
                    entity = new EntityImpl(getId(), rep, null);
                    initEntityMetadata(entity, siteMetadata,
                        singletonMap(RdfResourceEnum.isChached.getUri(), (Object) Boolean.TRUE));
                } else if (siteConfiguration.getCacheStrategy() == CacheStrategy.all) {
                    return null; // do no remote lokkups on CacheStrategy.all!!
                }
            } catch (YardException e) {
                if (siteConfiguration.getEntityDereferencerType() == null || isOfflineMode()) {
                    throw new SiteException(String.format("Unable to get Represetnation %s form Cache %s",
                        id, siteConfiguration.getCacheId()), e);
                } else {
                    log.warn(
                        String.format(
                            "Unable to get Represetnation %s form Cache %s. Will dereference from remote site %s",
                            id, siteConfiguration.getCacheId(), siteConfiguration.getAccessUri()), e);
                }
            }
        } else {
            if (siteConfiguration.getEntityDereferencerType() == null || isOfflineMode()) {
                throw new SiteException(String.format(
                    "Unable to get Represetnation %s because configured Cache %s is currently not available",
                    id, siteConfiguration.getCacheId()));
            } else {
                log.warn(String.format(
                    "Cache %s is currently not available. Will use remote site %s to load Representation %s",
                    siteConfiguration.getCacheId(), siteConfiguration.getEntityDereferencerType(), id));
            }
        }
        if (entity == null) { // no cache or not found in cache
            if (dereferencer == null) {
                throw new SiteException(String.format(
                    "Entity Dereferencer %s for accessing remote site %s is not available",
                    siteConfiguration.getEntityDereferencerType(), siteConfiguration.getAccessUri()));
            }
            ensureOnline(siteConfiguration.getAccessUri(), dereferencer.getClass());
            Representation rep = null;
            try {
                rep = dereferencer.dereference(id);
            } catch (IOException e) {
                throw new SiteException(String.format(
                    "Unable to load Representation for entity %s form remote site %s with dereferencer %s",

View Full Code Here

     * clean up the store after all the unit tests are executed.
     */
    protected static Collection<String> representationIds = new HashSet<String>();


    protected Representation create() throws YardException {
        Representation r = getYard().create();
        representationIds.add(r.getId());
        return r;
    }

View Full Code Here

        representationIds.add(r.getId());
        return r;
    }


    protected Representation create(String id, boolean store) throws YardException {
        Representation r;
        if (store) {
            r = getYard().create(id);
        } else if (id != null && !id.isEmpty()) {
            r = getYard().getValueFactory().createRepresentation(id);
        } else {
            throw new IllegalArgumentException("If store is FALSE the id MUST NOT be NULL nor EMPTY!");
        }
        representationIds.add(r.getId());
        return r;
    }

View Full Code Here

    }


    @Test
    public void testDefaultCreate() throws YardException {
        Yard yard = getYard();
        Representation test = yard.create();
        assertNotNull(test);
        Representation test2 = yard.create();
        assertNotNull(test2);
        assertNotSame(test, test2);
        assertFalse("Two Representation created with create() MUST NOT be equals", test.equals(test2));
    }

View Full Code Here

    }


    @Test
    public void testCreateWithNull() throws YardException {
        Yard yard = getYard();
        Representation test = yard.create(null);
        assertNotNull("Parsing NULL to create(String) MUST create a valid Representation", test);
        representationIds.add(test.getId()); // add id to cleanup list
        Representation test2 = yard.create(null);
        assertNotNull("Parsing NULL to create(String) MUST create a valid Representation", test2);
        representationIds.add(test2.getId()); // add id to cleanup list
        assertNotSame(test, test2);
        assertFalse("Two Representation created with create(null) MUST NOT be equals", test.equals(test2));
    }

View Full Code Here

    }


    @Test(expected = IllegalArgumentException.class)
    public void testCreateWithExistingId() throws YardException {
        Yard yard = getYard();
        Representation test = create();
        assertNotNull(test);
        yard.create(test.getId()); // throws an IllegalArgumentException
    }

View Full Code Here

        // that are already in the Yard AND representations that are not yet
        // present within the yard
        String testId = "urn:yard.test.testStoreRepresentation:representation.id1";
        String testId2 = "urn:yard.test.testStoreRepresentation:representation.id2";
        Yard yard = getYard();
        Representation test = create(testId, false);
        Representation added = yard.store(test); // this adds the representation
        assertEquals(test, added);
        Representation test2 = create(testId2, true); // this creates and adds the representation
        // now test that the representation can also be updated
        added = yard.store(test2);
        assertEquals(test2, added);
    }

View Full Code Here

        // present within the yard
        String testId = "urn:yard.test.testStoreRepresentations:representation.id1";
        String testId2 = "urn:yard.test.testStoreRepresentations:representation.id2";
        String field = "urn:the.field:used.for.this.Test";
        Yard yard = getYard();
        Representation test = create(testId, false);
        Representation test2 = create(testId2, true); // this creates and adds the representation
        // now add both and mix Representations that are already present in the yard
        // with an other that is not yet present in the yard


        // change the representations to be sure to force an update even if the
        // implementation checks for changes before updating a representation
        test2.add(field, "test value 2");
        Iterable<Representation> addedIterable = yard.store(Arrays.asList(test, test2));
        assertNotNull(addedIterable);
        Collection<Representation> added = asCollection(addedIterable.iterator());
        // test that both the parsed Representations where stored (updated & created)
        assertTrue(added.remove(test));

View Full Code Here


    @Test
    public void testStoreRepresentationsWithNullElement() throws YardException {
        String testId = "urn:yard.test.testStoreRepresentationsWithNullElement:representation.id";
        Yard yard = getYard();
        Representation test = create(testId, false);
        Iterable<Representation> added = yard.store(Arrays.asList(test, null));
        // now test that only the valid representation was added and the null
        // value was ignored
        assertNotNull(added);
        Iterator<Representation> addedIt = added.iterator();

View Full Code Here

        Yard yard = getYard();
        String field = "urn:the.field:used.for.this.Test";
        String value1 = "this is a test";
        // Representations created via the yard need to be created (as empty
        // representation within the yard
        Representation test = create(id, true);
        // retrieve the representation from the store
        Representation retrieved = yard.getRepresentation(id);
        assertNotNull(retrieved);
        // they MUST NOT be the same, but the MUST be equals
        // Note:
        // the fact that two representations with the same id are equals is tested
        // by the unit tests for the representation interface
        assertEquals(test, retrieved);
        assertNotSame("getRepresentation MUST return an new instance for each "
                      + "call, so that changes in one return instance do not influence "
                      + "an other returned instance!", test, retrieved);
        // now add a property to the original one
        test.add(field, value1);
        // and check that the retrieved does not have the value
        assertFalse(retrieved.get(field).hasNext());
        // now store the representation and check that updated are not reflected
        // within the retrieved one
        yard.store(test);
        assertFalse(retrieved.get(field).hasNext());
        // now retrieve again an representation
        retrieved = null;
        retrieved = yard.getRepresentation(id);
        // now the Representation MUST HAVE the new field
        assertTrue(retrieved.get(field).hasNext());
        assertEquals(value1, retrieved.getFirst(field));


        // finally retrieve a second and perform the change test again
        Representation retrieved2 = yard.getRepresentation(id);
        retrieved.removeAll(field);
        // check the value is still in retrieved2
        assertTrue(retrieved2.get(field).hasNext());
        assertEquals(value1, retrieved2.getFirst(field));


    }

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.apache.stanbol.entityhub.servicesapi.model.Representation

$.ResourceResolver

org.apache.stanbol.contenthub.ldpath.solr.SemanticIndexManagerImpl

org.apache.stanbol.contenthub.search.related.referencedsite.ReferencedSiteSearch

org.apache.stanbol.enhancer.engine.topic.TopicClassificationEngine

org.apache.stanbol.enhancer.engines.dereference.entityhub.TrackingDereferencerBase

org.apache.stanbol.enhancer.engines.entitytagging.impl.EnhancementRDFUtils

org.apache.stanbol.enhancer.engines.entitytagging.impl.MockEntityhub

org.apache.stanbol.enhancer.engines.entitytagging.impl.NamedEntityTaggingEngine

org.apache.stanbol.enhancer.engines.keywordextraction.engine.KeywordLinkingEngineTest

org.apache.stanbol.enhancer.engines.keywordextraction.impl.EntityLinker

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.