Examples with DseIndexMetadata com.datastax.dse.driver.api.core.metadata.schema.DseIndexMetadata used on opensource projects

Example 1 with DseIndexMetadata

use of com.datastax.dse.driver.api.core.metadata.schema.DseIndexMetadata in project java-driver by datastax.

the class DseTableParser method parseTable.

public DseTableMetadata parseTable(AdminRow tableRow, CqlIdentifier keyspaceId, Map<CqlIdentifier, UserDefinedType> userTypes, Multimap<CqlIdentifier, AdminRow> vertices, Multimap<CqlIdentifier, AdminRow> edges) {
    // Cassandra <= 2.2:
    // CREATE TABLE system.schema_columnfamilies (
    // keyspace_name text,
    // columnfamily_name text,
    // bloom_filter_fp_chance double,
    // caching text,
    // cf_id uuid,
    // column_aliases text, (2.1 only)
    // comment text,
    // compaction_strategy_class text,
    // compaction_strategy_options text,
    // comparator text,
    // compression_parameters text,
    // default_time_to_live int,
    // default_validator text,
    // dropped_columns map<text, bigint>,
    // gc_grace_seconds int,
    // index_interval int,
    // is_dense boolean, (2.1 only)
    // key_aliases text, (2.1 only)
    // key_validator text,
    // local_read_repair_chance double,
    // max_compaction_threshold int,
    // max_index_interval int,
    // memtable_flush_period_in_ms int,
    // min_compaction_threshold int,
    // min_index_interval int,
    // read_repair_chance double,
    // speculative_retry text,
    // subcomparator text,
    // type text,
    // value_alias text, (2.1 only)
    // PRIMARY KEY (keyspace_name, columnfamily_name)
    // ) WITH CLUSTERING ORDER BY (columnfamily_name ASC)
    // 
    // Cassandra 3.0:
    // CREATE TABLE system_schema.tables (
    // keyspace_name text,
    // table_name text,
    // bloom_filter_fp_chance double,
    // caching frozen<map<text, text>>,
    // cdc boolean,
    // comment text,
    // compaction frozen<map<text, text>>,
    // compression frozen<map<text, text>>,
    // crc_check_chance double,
    // dclocal_read_repair_chance double,
    // default_time_to_live int,
    // extensions frozen<map<text, blob>>,
    // flags frozen<set<text>>,
    // gc_grace_seconds int,
    // id uuid,
    // max_index_interval int,
    // memtable_flush_period_in_ms int,
    // min_index_interval int,
    // read_repair_chance double,
    // speculative_retry text,
    // PRIMARY KEY (keyspace_name, table_name)
    // ) WITH CLUSTERING ORDER BY (table_name ASC)
    CqlIdentifier tableId = CqlIdentifier.fromInternal(tableRow.getString(tableRow.contains("table_name") ? "table_name" : "columnfamily_name"));
    UUID uuid = tableRow.contains("id") ? tableRow.getUuid("id") : tableRow.getUuid("cf_id");
    List<RawColumn> rawColumns = RawColumn.toRawColumns(rows.columns().getOrDefault(keyspaceId, ImmutableMultimap.of()).get(tableId));
    if (rawColumns.isEmpty()) {
        LOG.warn("[{}] Processing TABLE refresh for {}.{} but found no matching rows, skipping", logPrefix, keyspaceId, tableId);
        return null;
    }
    boolean isCompactStorage;
    if (tableRow.contains("flags")) {
        Set<String> flags = tableRow.getSetOfString("flags");
        boolean isDense = flags.contains("dense");
        boolean isSuper = flags.contains("super");
        boolean isCompound = flags.contains("compound");
        isCompactStorage = isSuper || isDense || !isCompound;
        boolean isStaticCompact = !isSuper && !isDense && !isCompound;
        if (isStaticCompact) {
            RawColumn.pruneStaticCompactTableColumns(rawColumns);
        } else if (isDense) {
            RawColumn.pruneDenseTableColumnsV3(rawColumns);
        }
    } else {
        boolean isDense = tableRow.getBoolean("is_dense");
        if (isDense) {
            RawColumn.pruneDenseTableColumnsV2(rawColumns);
        }
        DataTypeClassNameCompositeParser.ParseResult comparator = new DataTypeClassNameCompositeParser().parseWithComposite(tableRow.getString("comparator"), keyspaceId, userTypes, context);
        isCompactStorage = isDense || !comparator.isComposite;
    }
    Collections.sort(rawColumns);
    ImmutableMap.Builder<CqlIdentifier, ColumnMetadata> allColumnsBuilder = ImmutableMap.builder();
    ImmutableList.Builder<ColumnMetadata> partitionKeyBuilder = ImmutableList.builder();
    ImmutableMap.Builder<ColumnMetadata, ClusteringOrder> clusteringColumnsBuilder = ImmutableMap.builder();
    ImmutableMap.Builder<CqlIdentifier, IndexMetadata> indexesBuilder = ImmutableMap.builder();
    for (RawColumn raw : rawColumns) {
        DataType dataType = rows.dataTypeParser().parse(keyspaceId, raw.dataType, userTypes, context);
        DseColumnMetadata column = new DefaultDseColumnMetadata(keyspaceId, tableId, raw.name, dataType, raw.kind.equals(RawColumn.KIND_STATIC));
        switch(raw.kind) {
            case RawColumn.KIND_PARTITION_KEY:
                partitionKeyBuilder.add(column);
                break;
            case RawColumn.KIND_CLUSTERING_COLUMN:
                clusteringColumnsBuilder.put(column, raw.reversed ? ClusteringOrder.DESC : ClusteringOrder.ASC);
                break;
            default:
        }
        allColumnsBuilder.put(column.getName(), column);
        DseIndexMetadata index = buildLegacyIndex(raw, column);
        if (index != null) {
            indexesBuilder.put(index.getName(), index);
        }
    }
    Map<CqlIdentifier, Object> options;
    try {
        options = parseOptions(tableRow);
    } catch (Exception e) {
        // Options change the most often, so be especially lenient if anything goes wrong.
        Loggers.warnWithException(LOG, "[{}] Error while parsing options for {}.{}, getOptions() will be empty", logPrefix, keyspaceId, tableId, e);
        options = Collections.emptyMap();
    }
    Collection<AdminRow> indexRows = rows.indexes().getOrDefault(keyspaceId, ImmutableMultimap.of()).get(tableId);
    for (AdminRow indexRow : indexRows) {
        DseIndexMetadata index = buildModernIndex(keyspaceId, tableId, indexRow);
        indexesBuilder.put(index.getName(), index);
    }
    return new DefaultDseTableMetadata(keyspaceId, tableId, uuid, isCompactStorage, false, partitionKeyBuilder.build(), clusteringColumnsBuilder.build(), allColumnsBuilder.build(), options, indexesBuilder.build(), buildVertex(tableId, vertices), buildEdge(tableId, edges, vertices));
}