Examples with ConstraintEvaluator com.amazonaws.athena.connector.lambda.domain.predicate.ConstraintEvaluator used on opensource projects

Example 6 with ConstraintEvaluator

use of com.amazonaws.athena.connector.lambda.domain.predicate.ConstraintEvaluator in project aws-athena-query-federation by awslabs.

the class MetricUtilsTest method applyMetricConstraints.

@Test
public void applyMetricConstraints() {
    Schema schema = SchemaBuilder.newBuilder().addStringField(NAMESPACE_FIELD).addStringField(METRIC_NAME_FIELD).addStringField(STATISTIC_FIELD).addStringField(DIMENSION_NAME_FIELD).addStringField(DIMENSION_VALUE_FIELD).build();
    Map<String, ValueSet> constraintsMap = new HashMap<>();
    constraintsMap.put(NAMESPACE_FIELD, makeStringEquals(allocator, "match1"));
    constraintsMap.put(METRIC_NAME_FIELD, makeStringEquals(allocator, "match2"));
    constraintsMap.put(STATISTIC_FIELD, makeStringEquals(allocator, "match3"));
    constraintsMap.put(DIMENSION_NAME_FIELD, makeStringEquals(allocator, "match4"));
    constraintsMap.put(DIMENSION_VALUE_FIELD, makeStringEquals(allocator, "match5"));
    ConstraintEvaluator constraintEvaluator = new ConstraintEvaluator(allocator, schema, new Constraints(constraintsMap));
    Metric metric = new Metric().withNamespace("match1").withMetricName("match2").withDimensions(new Dimension().withName("match4").withValue("match5"));
    String statistic = "match3";
    assertTrue(MetricUtils.applyMetricConstraints(constraintEvaluator, metric, statistic));
    assertFalse(MetricUtils.applyMetricConstraints(constraintEvaluator, copyMetric(metric).withNamespace("no_match"), statistic));
    assertFalse(MetricUtils.applyMetricConstraints(constraintEvaluator, copyMetric(metric).withMetricName("no_match"), statistic));
    assertFalse(MetricUtils.applyMetricConstraints(constraintEvaluator, copyMetric(metric).withDimensions(Collections.singletonList(new Dimension().withName("no_match").withValue("match5"))), statistic));
    assertFalse(MetricUtils.applyMetricConstraints(constraintEvaluator, copyMetric(metric).withDimensions(Collections.singletonList(new Dimension().withName("match4").withValue("no_match"))), statistic));
    assertFalse(MetricUtils.applyMetricConstraints(constraintEvaluator, copyMetric(metric), "no_match"));
}

Example 7 with ConstraintEvaluator

use of com.amazonaws.athena.connector.lambda.domain.predicate.ConstraintEvaluator in project aws-athena-query-federation by awslabs.

the class BigQueryRecordHandlerTest method testReadWithConstraint.

@Test
public void testReadWithConstraint() throws Exception {
    try (ReadRecordsRequest request = new ReadRecordsRequest(federatedIdentity, BigQueryTestUtils.PROJECT_1_NAME, "queryId", new TableName("dataset1", "table1"), BigQueryTestUtils.getBlockTestSchema(), Split.newBuilder(S3SpillLocation.newBuilder().withBucket(bucket).withPrefix(prefix).withSplitId(UUID.randomUUID().toString()).withQueryId(UUID.randomUUID().toString()).withIsDirectory(true).build(), keyFactory.create()).build(), new Constraints(Collections.EMPTY_MAP), // This is ignored when directly calling readWithConstraints.
    0, 0)) {
        // This is ignored when directly calling readWithConstraints.
        // Always return try for the evaluator to keep all rows.
        ConstraintEvaluator evaluator = mock(ConstraintEvaluator.class);
        when(evaluator.apply(any(String.class), any(Object.class))).thenAnswer((InvocationOnMock invocationOnMock) -> {
            return true;
        });
        // Populate the schema and data that the mocked Google BigQuery client will return.
        com.google.cloud.bigquery.Schema tableSchema = BigQueryTestUtils.getTestSchema();
        List<FieldValueList> tableRows = Arrays.asList(BigQueryTestUtils.getBigQueryFieldValueList(false, 1000, "test1", 123123.12312), BigQueryTestUtils.getBigQueryFieldValueList(true, 500, "test2", 5345234.22111), BigQueryTestUtils.getBigQueryFieldValueList(false, 700, "test3", 324324.23423), BigQueryTestUtils.getBigQueryFieldValueList(true, 900, null, null), BigQueryTestUtils.getBigQueryFieldValueList(null, null, "test5", 2342.234234), BigQueryTestUtils.getBigQueryFieldValueList(true, 1200, "test6", 1123.12312), BigQueryTestUtils.getBigQueryFieldValueList(false, 100, "test7", 1313.12312), BigQueryTestUtils.getBigQueryFieldValueList(true, 120, "test8", 12313.1312), BigQueryTestUtils.getBigQueryFieldValueList(false, 300, "test9", 12323.1312));
        Page<FieldValueList> fieldValueList = new BigQueryPage<>(tableRows);
        TableResult result = new TableResult(tableSchema, tableRows.size(), fieldValueList);
        // Mock out the Google BigQuery Job.
        Job mockBigQueryJob = mock(Job.class);
        when(mockBigQueryJob.isDone()).thenReturn(false).thenReturn(true);
        when(mockBigQueryJob.getQueryResults()).thenReturn(result);
        when(bigQuery.create(any(JobInfo.class))).thenReturn(mockBigQueryJob);
        QueryStatusChecker queryStatusChecker = mock(QueryStatusChecker.class);
        when(queryStatusChecker.isQueryRunning()).thenReturn(true);
        // Execute the test
        bigQueryRecordHandler.readWithConstraint(spillWriter, request, queryStatusChecker);
        PowerMockito.mockStatic(System.class);
        PowerMockito.when(System.getenv(anyString())).thenReturn("test");
        logger.info("Project Name: " + BigQueryUtils.getProjectName(request.getCatalogName()));
        // Ensure that there was a spill so that we can read the spilled block.
        assertTrue(spillWriter.spilled());
    }
}

Example 8 with ConstraintEvaluator

use of com.amazonaws.athena.connector.lambda.domain.predicate.ConstraintEvaluator in project aws-athena-query-federation by awslabs.

the class MetadataHandler method doGetTableLayout.

/**
 * Used to get the partitions that must be read from the request table in order to satisfy the requested predicate.
 *
 * @param allocator Tool for creating and managing Apache Arrow Blocks.
 * @param request Provides details of the catalog, database, and table being queried as well as any filter predicate.
 * @return A GetTableLayoutResponse which primarily contains:
 * 1. An Apache Arrow Block with 0 or more partitions to read. 0 partitions implies there are 0 rows to read.
 * 2. Set<String> of partition column names which should correspond to columns in your Apache Arrow Block.
 * @note Partitions are opaque to Amazon Athena in that it does not understand their contents, just that it must call
 * doGetSplits(...) for each partition you return in order to determine which reads to perform and if those reads
 * can be parallelized. This means the contents of this response are more for you than they are for Athena.
 * @note Partitions are partially opaque to Amazon Athena in that it only understands your partition columns and
 * how to filter out partitions that do not meet the query's constraints. Any additional columns you add to the
 * partition data are ignored by Athena but passed on to calls on GetSplits.
 */
public GetTableLayoutResponse doGetTableLayout(final BlockAllocator allocator, final GetTableLayoutRequest request) throws Exception {
    SchemaBuilder constraintSchema = new SchemaBuilder().newBuilder();
    SchemaBuilder partitionSchemaBuilder = new SchemaBuilder().newBuilder();
    /**
     * Add our partition columns to the response schema so the engine knows how to interpret the list of
     * partitions we are going to return.
     */
    for (String nextPartCol : request.getPartitionCols()) {
        Field partitionCol = request.getSchema().findField(nextPartCol);
        partitionSchemaBuilder.addField(nextPartCol, partitionCol.getType());
        constraintSchema.addField(nextPartCol, partitionCol.getType());
    }
    enhancePartitionSchema(partitionSchemaBuilder, request);
    Schema partitionSchema = partitionSchemaBuilder.build();
    if (partitionSchema.getFields().isEmpty() && partitionSchema.getCustomMetadata().isEmpty()) {
        // Even though our table doesn't support complex layouts, partitioning or metadata, we need to convey that there is at least
        // 1 partition to read as part of the query or Athena will assume partition pruning found no candidate layouts to read.
        Block partitions = BlockUtils.newBlock(allocator, PARTITION_ID_COL, Types.MinorType.INT.getType(), 1);
        return new GetTableLayoutResponse(request.getCatalogName(), request.getTableName(), partitions);
    }
    /**
     * Now use the constraint that was in the request to do some partition pruning. Here we are just
     * generating some fake values for the partitions but in a real implementation you'd use your metastore
     * or knowledge of the actual table's physical layout to do this.
     */
    try (ConstraintEvaluator constraintEvaluator = new ConstraintEvaluator(allocator, constraintSchema.build(), request.getConstraints());
        QueryStatusChecker queryStatusChecker = new QueryStatusChecker(athena, athenaInvoker, request.getQueryId())) {
        Block partitions = allocator.createBlock(partitionSchemaBuilder.build());
        partitions.constrain(constraintEvaluator);
        SimpleBlockWriter blockWriter = new SimpleBlockWriter(partitions);
        getPartitions(blockWriter, request, queryStatusChecker);
        return new GetTableLayoutResponse(request.getCatalogName(), request.getTableName(), partitions);
    }
}

Example 9 with ConstraintEvaluator

use of com.amazonaws.athena.connector.lambda.domain.predicate.ConstraintEvaluator in project aws-athena-query-federation by awslabs.

the class RecordHandler method doReadRecords.

/**
 * Used to read the row data associated with the provided Split.
 *
 * @param allocator Tool for creating and managing Apache Arrow Blocks.
 * @param request Details of the read request, including:
 * 1. The Split
 * 2. The Catalog, Database, and Table the read request is for.
 * 3. The filtering predicate (if any)
 * 4. The columns required for projection.
 * @return A RecordResponse which either a ReadRecordsResponse or a RemoteReadRecordsResponse containing the row
 * data for the requested Split.
 */
public RecordResponse doReadRecords(BlockAllocator allocator, ReadRecordsRequest request) throws Exception {
    logger.info("doReadRecords: {}:{}", request.getSchema(), request.getSplit().getSpillLocation());
    SpillConfig spillConfig = getSpillConfig(request);
    try (ConstraintEvaluator evaluator = new ConstraintEvaluator(allocator, request.getSchema(), request.getConstraints());
        S3BlockSpiller spiller = new S3BlockSpiller(amazonS3, spillConfig, allocator, request.getSchema(), evaluator);
        QueryStatusChecker queryStatusChecker = new QueryStatusChecker(athena, athenaInvoker, request.getQueryId())) {
        readWithConstraint(spiller, request, queryStatusChecker);
        if (!spiller.spilled()) {
            return new ReadRecordsResponse(request.getCatalogName(), spiller.getBlock());
        } else {
            return new RemoteReadRecordsResponse(request.getCatalogName(), request.getSchema(), spiller.getSpillLocations(), spillConfig.getEncryptionKey());
        }
    }
}