Examples with IndexColumn com.google.cloud.teleport.v2.templates.spanner.ddl.IndexColumn used on opensource projects

Example 1 with IndexColumn

use of com.google.cloud.teleport.v2.templates.spanner.ddl.IndexColumn in project DataflowTemplates by GoogleCloudPlatform.

the class ChangeEventConvertor method changeEventToPrimaryKey.

static com.google.cloud.spanner.Key changeEventToPrimaryKey(Ddl ddl, JsonNode changeEvent) throws ChangeEventConvertorException {
    String tableName = changeEvent.get(DatastreamConstants.EVENT_TABLE_NAME_KEY).asText();
    try {
        Table table = ddl.table(tableName);
        ImmutableList<IndexColumn> keyColumns = table.primaryKeys();
        com.google.cloud.spanner.Key.Builder pk = com.google.cloud.spanner.Key.newBuilder();
        for (IndexColumn keyColumn : keyColumns) {
            Column key = table.column(keyColumn.name());
            Type keyColType = key.type();
            String keyColName = key.name().toLowerCase();
            switch(keyColType.getCode()) {
                case BOOL:
                    pk.append(ChangeEventTypeConvertor.toBoolean(changeEvent, keyColName, /*requiredField=*/
                    true));
                    break;
                case INT64:
                    pk.append(ChangeEventTypeConvertor.toLong(changeEvent, keyColName, /*requiredField=*/
                    true));
                    break;
                case FLOAT64:
                    pk.append(ChangeEventTypeConvertor.toDouble(changeEvent, keyColName, /*requiredField=*/
                    true));
                    break;
                case STRING:
                    pk.append(ChangeEventTypeConvertor.toString(changeEvent, keyColName, /*requiredField=*/
                    true));
                    break;
                case NUMERIC:
                    pk.append(ChangeEventTypeConvertor.toNumericBigDecimal(changeEvent, keyColName, /*requiredField=*/
                    true));
                    break;
                case BYTES:
                    pk.append(ChangeEventTypeConvertor.toByteArray(changeEvent, keyColName, /*requiredField=*/
                    true));
                    break;
                case TIMESTAMP:
                    pk.append(ChangeEventTypeConvertor.toTimestamp(changeEvent, keyColName, /*requiredField=*/
                    true));
                    break;
                case DATE:
                    pk.append(ChangeEventTypeConvertor.toDate(changeEvent, keyColName, /*requiredField=*/
                    true));
                    break;
                // TODO(b/179070999) -  Add support for other data types.
                default:
                    throw new IllegalArgumentException("Column name(" + keyColName + ") has unsupported column type(" + keyColType + ")");
            }
        }
        return pk.build();
    } catch (Exception e) {
        throw new ChangeEventConvertorException(e);
    }
}

Example 2 with IndexColumn

use of com.google.cloud.teleport.v2.templates.spanner.ddl.IndexColumn in project DataflowTemplates by GoogleCloudPlatform.

the class ChangeEventConvertor method changeEventToShadowTableMutationBuilder.

static Mutation.WriteBuilder changeEventToShadowTableMutationBuilder(Ddl ddl, JsonNode changeEvent, String shadowTablePrefix) throws ChangeEventConvertorException {
    String tableName = changeEvent.get(DatastreamConstants.EVENT_TABLE_NAME_KEY).asText();
    String shadowTableName = shadowTablePrefix + tableName;
    try {
        Table table = ddl.table(shadowTableName);
        ImmutableList<IndexColumn> keyColumns = table.primaryKeys();
        List<String> keyColumnNames = keyColumns.stream().map(IndexColumn::name).map(colName -> colName.toLowerCase()).collect(Collectors.toList());
        Set<String> requiredKeyColumnNames = new HashSet<>(keyColumnNames);
        Mutation.WriteBuilder builder = Mutation.newInsertOrUpdateBuilder(shadowTableName);
        populateMutationBuilderWithEvent(table, builder, changeEvent, keyColumnNames, requiredKeyColumnNames);
        return builder;
    } catch (Exception e) {
        throw new ChangeEventConvertorException(e);
    }
}

Example 3 with IndexColumn

use of com.google.cloud.teleport.v2.templates.spanner.ddl.IndexColumn in project DataflowTemplates by GoogleCloudPlatform.

the class ShadowTableCreator method constructShadowTable.

/*
   * Constructs a shadow table for a data table in the information schema.
   * Note: Shadow tables for interleaved tables are not interleaved to
   * their shadow parent table.
   */
Table constructShadowTable(Ddl informationSchema, String dataTableName) {
    // Create a new shadow table with the given prefix.
    Table.Builder shadowTableBuilder = Table.builder();
    String shadowTableName = shadowTablePrefix + dataTableName;
    shadowTableBuilder.name(shadowTableName);
    // Add key columns from the data table to the shadow table builder.
    Table dataTable = informationSchema.table(dataTableName);
    Set<String> primaryKeyColNames = dataTable.primaryKeys().stream().map(k -> k.name()).collect(Collectors.toSet());
    List<Column> primaryKeyCols = dataTable.columns().stream().filter(col -> primaryKeyColNames.contains(col.name())).collect(Collectors.toList());
    for (Column col : primaryKeyCols) {
        shadowTableBuilder.addColumn(col);
    }
    // Add primary key constraints.
    for (IndexColumn keyColumn : dataTable.primaryKeys()) {
        if (keyColumn.order() == IndexColumn.Order.ASC) {
            shadowTableBuilder.primaryKey().asc(keyColumn.name()).end();
        } else if (keyColumn.order() == IndexColumn.Order.DESC) {
            shadowTableBuilder.primaryKey().desc(keyColumn.name()).end();
        }
    }
    // Add extra column to track ChangeEventSequence information
    addChangeEventSequenceColumns(shadowTableBuilder);
    return shadowTableBuilder.build();
}