Examples with IStruct org.apache.atlas.typesystem.IStruct used on opensource projects

Example 6 with IStruct

use of org.apache.atlas.typesystem.IStruct in project incubator-atlas by apache.

the class EntityResource method getTraitDefinitionsForEntity.

/**
     * Fetches the trait definitions of all the traits associated to the given entity
     * @param guid globally unique identifier for the entity
     */
@GET
@Path("{guid}/traitDefinitions")
@Produces(Servlets.JSON_MEDIA_TYPE)
public Response getTraitDefinitionsForEntity(@PathParam("guid") String guid) {
    if (LOG.isDebugEnabled()) {
        LOG.debug("==> EntityResource.getTraitDefinitionsForEntity({})", guid);
    }
    AtlasPerfTracer perf = null;
    try {
        if (AtlasPerfTracer.isPerfTraceEnabled(PERF_LOG)) {
            perf = AtlasPerfTracer.getPerfTracer(PERF_LOG, "EntityResource.getTraitDefinitionsForEntity(" + guid + ")");
        }
        if (LOG.isDebugEnabled()) {
            LOG.debug("Fetching all trait definitions for entity={}", guid);
        }
        final List<AtlasClassification> classifications = entitiesStore.getClassifications(guid);
        JSONArray traits = new JSONArray();
        for (AtlasClassification classification : classifications) {
            IStruct trait = restAdapters.getTrait(classification);
            traits.put(new JSONObject(InstanceSerialization.toJson(trait, true)));
        }
        JSONObject response = new JSONObject();
        response.put(AtlasClient.REQUEST_ID, Servlets.getRequestId());
        response.put(AtlasClient.RESULTS, traits);
        response.put(AtlasClient.COUNT, traits.length());
        return Response.ok(response).build();
    } catch (AtlasBaseException e) {
        LOG.error("Unable to get trait definition for entity {}", guid, e);
        throw toWebApplicationException(e);
    } catch (IllegalArgumentException e) {
        LOG.error("Unable to get trait definition for entity {}", guid, e);
        throw new WebApplicationException(Servlets.getErrorResponse(e, Response.Status.BAD_REQUEST));
    } catch (WebApplicationException e) {
        LOG.error("Unable to get trait definitions for entity {}", guid, e);
        throw e;
    } catch (Throwable e) {
        LOG.error("Unable to get trait definitions for entity {}", guid, e);
        throw new WebApplicationException(Servlets.getErrorResponse(e, Response.Status.INTERNAL_SERVER_ERROR));
    } finally {
        AtlasPerfTracer.log(perf);
        if (LOG.isDebugEnabled()) {
            LOG.debug("<== EntityResource.getTraitDefinitionsForEntity({})", guid);
        }
    }
}

Example 7 with IStruct

use of org.apache.atlas.typesystem.IStruct in project incubator-atlas by apache.

the class TypeInheritanceTest method testDiamondInheritance.

/*
     * Type Hierarchy is:
     *   A(a,b,c,d)
     *   B(b) extends A
     *   C(c) extends A
     *   D(d) extends B,C
     *
     * - There are a total of 11 fields in an instance of D
     * - an attribute that is hidden by a SubType can referenced by prefixing it with the
     * complete Path.
     *   For e.g. the 'b' attribute in A (that is a superType for B) is hidden the 'b' attribute
     *   in B.
     *   So it is availabel by the name 'A.B.D.b'
     *
     * - Another way to set attributes is to cast. Casting a 'D' instance of 'B' makes the 'A.B.D
     * .b' attribute
     *   available as 'A.B.b'. Casting one more time to an 'A' makes the 'A.B.b' attribute
     *   available as 'b'.
     */
@Test
public void testDiamondInheritance() throws AtlasException {
    HierarchicalTypeDefinition A = createTraitTypeDef("A", null, createRequiredAttrDef("a", DataTypes.INT_TYPE), createOptionalAttrDef("b", DataTypes.BOOLEAN_TYPE), createOptionalAttrDef("c", DataTypes.BYTE_TYPE), createOptionalAttrDef("d", DataTypes.SHORT_TYPE));
    HierarchicalTypeDefinition B = createTraitTypeDef("B", ImmutableSet.of("A"), createOptionalAttrDef("b", DataTypes.BOOLEAN_TYPE));
    HierarchicalTypeDefinition C = createTraitTypeDef("C", ImmutableSet.of("A"), createOptionalAttrDef("c", DataTypes.BYTE_TYPE));
    HierarchicalTypeDefinition D = createTraitTypeDef("D", ImmutableSet.of("B", "C"), createOptionalAttrDef("d", DataTypes.SHORT_TYPE));
    defineTraits(A, B, C, D);
    TraitType DType = getTypeSystem().getDataType(TraitType.class, "D");
    Struct s1 = new Struct("D");
    s1.set("d", 1);
    s1.set("c", 1);
    s1.set("b", true);
    s1.set("a", 1);
    s1.set("A.B.D.b", true);
    s1.set("A.B.D.c", 2);
    s1.set("A.B.D.d", 2);
    s1.set("A.C.D.a", 3);
    s1.set("A.C.D.b", false);
    s1.set("A.C.D.c", 3);
    s1.set("A.C.D.d", 3);
    ITypedStruct ts = DType.convert(s1, Multiplicity.REQUIRED);
    Assert.assertEquals(ts.toString(), "{\n" + "\td : \t1\n" + "\tb : \ttrue\n" + "\tc : \t1\n" + "\ta : \t1\n" + "\tA.B.D.b : \ttrue\n" + "\tA.B.D.c : \t2\n" + "\tA.B.D.d : \t2\n" + "\tA.C.D.a : \t3\n" + "\tA.C.D.b : \tfalse\n" + "\tA.C.D.c : \t3\n" + "\tA.C.D.d : \t3\n" + "}");
    /*
         * cast to B and set the 'b' attribute on A.
         */
    TraitType BType = getTypeSystem().getDataType(TraitType.class, "B");
    IStruct s2 = DType.castAs(ts, "B");
    s2.set("A.B.b", false);
    Assert.assertEquals(ts.toString(), "{\n" + "\td : \t1\n" + "\tb : \ttrue\n" + "\tc : \t1\n" + "\ta : \t1\n" + "\tA.B.D.b : \tfalse\n" + "\tA.B.D.c : \t2\n" + "\tA.B.D.d : \t2\n" + "\tA.C.D.a : \t3\n" + "\tA.C.D.b : \tfalse\n" + "\tA.C.D.c : \t3\n" + "\tA.C.D.d : \t3\n" + "}");
    /*
         * cast again to A and set the 'b' attribute on A.
         */
    IStruct s3 = BType.castAs(s2, "A");
    s3.set("b", true);
    Assert.assertEquals(ts.toString(), "{\n" + "\td : \t1\n" + "\tb : \ttrue\n" + "\tc : \t1\n" + "\ta : \t1\n" + "\tA.B.D.b : \ttrue\n" + "\tA.B.D.c : \t2\n" + "\tA.B.D.d : \t2\n" + "\tA.C.D.a : \t3\n" + "\tA.C.D.b : \tfalse\n" + "\tA.C.D.c : \t3\n" + "\tA.C.D.d : \t3\n" + "}");
}

Example 8 with IStruct

use of org.apache.atlas.typesystem.IStruct in project incubator-atlas by apache.

the class TraitTest method test1.

/*
     * Type Hierarchy is:
     *   A(a,b,c,d)
     *   B(b) extends A
     *   C(c) extends A
     *   D(d) extends B,C
     *
     * - There are a total of 11 fields in an instance of D
     * - an attribute that is hidden by a SubType can referenced by prefixing it with the
     * complete Path.
     *   For e.g. the 'b' attribute in A (that is a superType for B) is hidden the 'b' attribute
     *   in B.
     *   So it is available by the name 'A.B.D.b'
     *
     * - Another way to set attributes is to cast. Casting a 'D' instance of 'B' makes the 'A.B.D
     * .b' attribute
     *   available as 'A.B.b'. Casting one more time to an 'A' makes the 'A.B.b' attribute
     *   available as 'b'.
     */
@Test
public void test1() throws AtlasException {
    HierarchicalTypeDefinition A = createTraitTypeDef("A", null, createRequiredAttrDef("a", DataTypes.INT_TYPE), createOptionalAttrDef("b", DataTypes.BOOLEAN_TYPE), createOptionalAttrDef("c", DataTypes.BYTE_TYPE), createOptionalAttrDef("d", DataTypes.SHORT_TYPE));
    HierarchicalTypeDefinition B = createTraitTypeDef("B", ImmutableSet.of("A"), createOptionalAttrDef("b", DataTypes.BOOLEAN_TYPE));
    HierarchicalTypeDefinition C = createTraitTypeDef("C", ImmutableSet.of("A"), createOptionalAttrDef("c", DataTypes.BYTE_TYPE));
    HierarchicalTypeDefinition D = createTraitTypeDef("D", ImmutableSet.of("B", "C"), createOptionalAttrDef("d", DataTypes.SHORT_TYPE));
    defineTraits(A, B, C, D);
    TraitType DType = getTypeSystem().getDataType(TraitType.class, "D");
    //        for(String aName : DType.fieldMapping().fields.keySet()) {
    //            System.out.println(String.format("nameToQualifiedName.put(\"%s\", \"%s\");", aName, DType
    // .getQualifiedName(aName)));
    //        }
    Map<String, String> nameToQualifiedName = new HashMap();
    {
        nameToQualifiedName.put("d", "D.d");
        nameToQualifiedName.put("b", "B.b");
        nameToQualifiedName.put("c", "C.c");
        nameToQualifiedName.put("a", "A.a");
        nameToQualifiedName.put("A.B.D.b", "A.B.D.b");
        nameToQualifiedName.put("A.B.D.c", "A.B.D.c");
        nameToQualifiedName.put("A.B.D.d", "A.B.D.d");
        nameToQualifiedName.put("A.C.D.a", "A.C.D.a");
        nameToQualifiedName.put("A.C.D.b", "A.C.D.b");
        nameToQualifiedName.put("A.C.D.c", "A.C.D.c");
        nameToQualifiedName.put("A.C.D.d", "A.C.D.d");
    }
    Struct s1 = new Struct("D");
    s1.set("d", 1);
    s1.set("c", 1);
    s1.set("b", true);
    s1.set("a", 1);
    s1.set("A.B.D.b", true);
    s1.set("A.B.D.c", 2);
    s1.set("A.B.D.d", 2);
    s1.set("A.C.D.a", 3);
    s1.set("A.C.D.b", false);
    s1.set("A.C.D.c", 3);
    s1.set("A.C.D.d", 3);
    ITypedStruct ts = DType.convert(s1, Multiplicity.REQUIRED);
    Assert.assertEquals(ts.toString(), "{\n" + "\td : \t1\n" + "\tb : \ttrue\n" + "\tc : \t1\n" + "\ta : \t1\n" + "\tA.B.D.b : \ttrue\n" + "\tA.B.D.c : \t2\n" + "\tA.B.D.d : \t2\n" + "\tA.C.D.a : \t3\n" + "\tA.C.D.b : \tfalse\n" + "\tA.C.D.c : \t3\n" + "\tA.C.D.d : \t3\n" + "}");
    /*
         * cast to B and set the 'b' attribute on A.
         */
    TraitType BType = getTypeSystem().getDataType(TraitType.class, "B");
    IStruct s2 = DType.castAs(ts, "B");
    s2.set("A.B.b", false);
    Assert.assertEquals(ts.toString(), "{\n" + "\td : \t1\n" + "\tb : \ttrue\n" + "\tc : \t1\n" + "\ta : \t1\n" + "\tA.B.D.b : \tfalse\n" + "\tA.B.D.c : \t2\n" + "\tA.B.D.d : \t2\n" + "\tA.C.D.a : \t3\n" + "\tA.C.D.b : \tfalse\n" + "\tA.C.D.c : \t3\n" + "\tA.C.D.d : \t3\n" + "}");
    /*
         * cast again to A and set the 'b' attribute on A.
         */
    TraitType AType = getTypeSystem().getDataType(TraitType.class, "A");
    IStruct s3 = BType.castAs(s2, "A");
    s3.set("b", true);
    Assert.assertEquals(ts.toString(), "{\n" + "\td : \t1\n" + "\tb : \ttrue\n" + "\tc : \t1\n" + "\ta : \t1\n" + "\tA.B.D.b : \ttrue\n" + "\tA.B.D.c : \t2\n" + "\tA.B.D.d : \t2\n" + "\tA.C.D.a : \t3\n" + "\tA.C.D.b : \tfalse\n" + "\tA.C.D.c : \t3\n" + "\tA.C.D.d : \t3\n" + "}");
}

Example 9 with IStruct

use of org.apache.atlas.typesystem.IStruct in project incubator-atlas by apache.

the class EntityNotificationImpl method getAllTraits.

// ----- helper methods ----------------------------------------------------
private static List<IStruct> getAllTraits(IReferenceableInstance entityDefinition, TypeSystem typeSystem) throws AtlasException {
    List<IStruct> traitInfo = new LinkedList<>();
    for (String traitName : entityDefinition.getTraits()) {
        IStruct trait = entityDefinition.getTrait(traitName);
        String typeName = trait.getTypeName();
        Map<String, Object> valuesMap = trait.getValuesMap();
        traitInfo.add(new Struct(typeName, valuesMap));
        traitInfo.addAll(getSuperTraits(typeName, valuesMap, typeSystem));
    }
    return traitInfo;
}

Example 10 with IStruct

use of org.apache.atlas.typesystem.IStruct in project incubator-atlas by apache.

the class EntityNotificationImpl method getSuperTraits.

private static List<IStruct> getSuperTraits(String typeName, Map<String, Object> values, TypeSystem typeSystem) throws AtlasException {
    List<IStruct> superTypes = new LinkedList<>();
    TraitType traitDef = typeSystem.getDataType(TraitType.class, typeName);
    Set<String> superTypeNames = traitDef.getAllSuperTypeNames();
    for (String superTypeName : superTypeNames) {
        TraitType superTraitDef = typeSystem.getDataType(TraitType.class, superTypeName);
        Map<String, Object> superTypeValues = new HashMap<>();
        FieldMapping fieldMapping = superTraitDef.fieldMapping();
        if (fieldMapping != null) {
            Set<String> superTypeAttributeNames = fieldMapping.fields.keySet();
            for (String superTypeAttributeName : superTypeAttributeNames) {
                if (values.containsKey(superTypeAttributeName)) {
                    superTypeValues.put(superTypeAttributeName, values.get(superTypeAttributeName));
                }
            }
        }
        IStruct superTrait = new Struct(superTypeName, superTypeValues);
        superTypes.add(superTrait);
        superTypes.addAll(getSuperTraits(superTypeName, values, typeSystem));
    }
    return superTypes;
}