Examples with QueryEngine com.yahoo.elide.datastores.aggregation.QueryEngine used on opensource projects

Example 1 with QueryEngine

use of com.yahoo.elide.datastores.aggregation.QueryEngine in project elide by yahoo.

the class ElideAutoConfiguration method buildQueryEngine.

/**
 * Create a QueryEngine instance for aggregation data store to use.
 * @param defaultDataSource DataSource for JPA.
 * @param dynamicConfig An instance of DynamicConfiguration.
 * @param settings Elide configuration settings.
 * @param dataSourceConfiguration DataSource Configuration
 * @param dbPasswordExtractor Password Extractor Implementation
 * @return An instance of a QueryEngine
 */
@Bean
@ConditionalOnMissingBean
@ConditionalOnProperty(name = "elide.aggregation-store.enabled", havingValue = "true")
@Scope(SCOPE_PROTOTYPE)
public QueryEngine buildQueryEngine(DataSource defaultDataSource, @Autowired(required = false) DynamicConfiguration dynamicConfig, ElideConfigProperties settings, ClassScanner scanner, DataSourceConfiguration dataSourceConfiguration, DBPasswordExtractor dbPasswordExtractor) {
    boolean enableMetaDataStore = settings.getAggregationStore().isEnableMetaDataStore();
    ConnectionDetails defaultConnectionDetails = new ConnectionDetails(defaultDataSource, SQLDialectFactory.getDialect(settings.getAggregationStore().getDefaultDialect()));
    if (isDynamicConfigEnabled(settings)) {
        MetaDataStore metaDataStore = new MetaDataStore(scanner, dynamicConfig.getTables(), dynamicConfig.getNamespaceConfigurations(), enableMetaDataStore);
        Map<String, ConnectionDetails> connectionDetailsMap = new HashMap<>();
        dynamicConfig.getDatabaseConfigurations().forEach(dbConfig -> {
            connectionDetailsMap.put(dbConfig.getName(), new ConnectionDetails(dataSourceConfiguration.getDataSource(dbConfig, dbPasswordExtractor), SQLDialectFactory.getDialect(dbConfig.getDialect())));
        });
        Function<String, ConnectionDetails> connectionDetailsLookup = (name) -> {
            if (StringUtils.isEmpty(name)) {
                return defaultConnectionDetails;
            }
            return Optional.ofNullable(connectionDetailsMap.get(name)).orElseThrow(() -> new IllegalStateException("ConnectionDetails undefined for connection: " + name));
        };
        return new SQLQueryEngine(metaDataStore, connectionDetailsLookup, new HashSet<>(Arrays.asList(new AggregateBeforeJoinOptimizer(metaDataStore))), new DefaultQueryPlanMerger(metaDataStore), new DefaultQueryValidator(metaDataStore.getMetadataDictionary()));
    }
    MetaDataStore metaDataStore = new MetaDataStore(scanner, enableMetaDataStore);
    return new SQLQueryEngine(metaDataStore, (unused) -> defaultConnectionDetails);
}

Example 2 with QueryEngine

use of com.yahoo.elide.datastores.aggregation.QueryEngine in project elide by yahoo.

the class ElideStandaloneSettings method getQueryEngine.

/**
 * Gets the QueryEngine for elide.
 * @param metaDataStore MetaDataStore object.
 * @param defaultConnectionDetails default DataSource Object and SQLDialect Object.
 * @param dynamicConfiguration Optional dynamic config.
 * @param dataSourceConfiguration DataSource Configuration.
 * @param dbPasswordExtractor Password Extractor Implementation.
 * @return QueryEngine object initialized.
 */
default QueryEngine getQueryEngine(MetaDataStore metaDataStore, ConnectionDetails defaultConnectionDetails, Optional<DynamicConfiguration> dynamicConfiguration, DataSourceConfiguration dataSourceConfiguration, DBPasswordExtractor dbPasswordExtractor) {
    if (dynamicConfiguration.isPresent()) {
        Map<String, ConnectionDetails> connectionDetailsMap = new HashMap<>();
        dynamicConfiguration.get().getDatabaseConfigurations().forEach(dbConfig -> connectionDetailsMap.put(dbConfig.getName(), new ConnectionDetails(dataSourceConfiguration.getDataSource(dbConfig, dbPasswordExtractor), SQLDialectFactory.getDialect(dbConfig.getDialect()))));
        Function<String, ConnectionDetails> connectionDetailsLookup = (name) -> {
            if (StringUtils.isEmpty(name)) {
                return defaultConnectionDetails;
            }
            return Optional.ofNullable(connectionDetailsMap.get(name)).orElseThrow(() -> new IllegalStateException("ConnectionDetails undefined for connection: " + name));
        };
        return new SQLQueryEngine(metaDataStore, connectionDetailsLookup, new HashSet<>(Arrays.asList(new AggregateBeforeJoinOptimizer(metaDataStore))), new DefaultQueryPlanMerger(metaDataStore), new DefaultQueryValidator(metaDataStore.getMetadataDictionary()));
    }
    return new SQLQueryEngine(metaDataStore, (unused) -> defaultConnectionDetails);
}