Package io.debezium.connector.spanner.db.mapper

Class ChangeStreamRecordMapper

java.lang.Object

io.debezium.connector.spanner.db.mapper.ChangeStreamRecordMapper

public class ChangeStreamRecordMapper
extends Object

Maps Change Stream events from the raw format into specific DTOs

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	CHILD_PARTITIONS_COLUMN
private static final String	CHILD_PARTITIONS_RECORD_COLUMN
private static final String	COLUMN_TYPES_COLUMN
private static final String	COMMIT_TIMESTAMP_COLUMN
private static final String	DATA_CHANGE_RECORD_COLUMN
private final com.google.cloud.spanner.DatabaseClient	databaseClient
private static final String	HEARTBEAT_RECORD_COLUMN
private static final String	IS_LAST_RECORD_IN_TRANSACTION_IN_PARTITION_COLUMN
private static final String	IS_PRIMARY_KEY_COLUMN
private static final String	KEYS_COLUMN
private static final String	MOD_TYPE_COLUMN
private static final String	MODS_COLUMN
private static final String	NAME_COLUMN
private static final String	NEW_VALUES_COLUMN
private static final String	NUMBER_OF_PARTITIONS_IN_TRANSACTION_COLUMN
private static final String	NUMBER_OF_RECORDS_IN_TRANSACTION_COLUMN
private static final String	OLD_VALUES_COLUMN
private static final String	ORDINAL_POSITION_COLUMN
private static final String	PARENT_PARTITION_TOKENS_COLUMN
private final com.google.protobuf.util.JsonFormat.Parser	parser
private final com.google.protobuf.util.JsonFormat.Printer	printer
private static final String	RECORD_SEQUENCE_COLUMN
private static final String	SERVER_TRANSACTION_ID_COLUMN
private static final String	START_TIMESTAMP_COLUMN
private static final String	SYSTEM_TRANSACTION
private static final String	TABLE_NAME_COLUMN
private static final String	TIMESTAMP_COLUMN
private static final String	TOKEN_COLUMN
private static final String	TRANSACTION_TAG
private static final String	TYPE_COLUMN
private static final String	VALUE_CAPTURE_TYPE_COLUMN

Constructor Summary

Constructors

Constructor	Description
ChangeStreamRecordMapper(com.google.cloud.spanner.DatabaseClient databaseClient)

Method Summary

Modifier and Type	Method	Description
(package private) ChildPartition	childPartitionFrom(String partitionToken, com.google.cloud.spanner.Struct struct)
private ChildPartition	childPartitionJsonFrom(String partitionToken, com.google.protobuf.Value row)
(package private) Column	columnTypeFrom(com.google.cloud.spanner.Struct struct)
private Column	columnTypeJsonFrom(com.google.protobuf.Value row)
(package private) String	getJsonString(com.google.cloud.spanner.Struct struct, String columnName)
(package private) boolean	isNonNullChildPartitionsRecord(com.google.cloud.spanner.Struct row)
private boolean	isNonNullChildPartitionsRecordJson(com.google.protobuf.Value row)
(package private) boolean	isNonNullDataChangeRecord(com.google.cloud.spanner.Struct row)
private boolean	isNonNullDataChangeRecordJson(com.google.protobuf.Value row)
(package private) boolean	isNonNullHeartbeatRecord(com.google.cloud.spanner.Struct row)
private boolean	isNonNullHeartbeatRecordJson(com.google.protobuf.Value row)
private boolean	isPostgres()
(package private) Mod	modFrom(int modNumber, com.google.cloud.spanner.Struct struct)
private Mod	modJsonFrom(com.google.protobuf.Value row, int modNumber)
(package private) List<Mod>	modListFrom(List<com.google.cloud.spanner.Struct> list)
private ModType	modTypeFrom(String name)
(package private) StreamEventMetadata	streamEventMetadataFrom(Partition partition, com.google.cloud.Timestamp recordTimestamp, ChangeStreamResultSetMetadata resultSetMetadata)
List<ChangeStreamEvent>	toChangeStreamEvents(Partition partition, ChangeStreamResultSet resultSet, ChangeStreamResultSetMetadata resultSetMetadata)
(package private) ChildPartitionsEvent	toChildPartitionsEvent(Partition partition, com.google.cloud.spanner.Struct row, ChangeStreamResultSetMetadata resultSetMetadata)
private ChildPartitionsEvent	toChildPartitionsRecordJson(Partition partition, com.google.protobuf.Value row, ChangeStreamResultSetMetadata resultSetMetadata)
(package private) DataChangeEvent	toDataChangeEvent(Partition partition, com.google.cloud.spanner.Struct row, ChangeStreamResultSetMetadata resultSetMetadata)
(package private) DataChangeEvent	toDataChangeEventJson(Partition partition, com.google.protobuf.Value row, ChangeStreamResultSetMetadata resultSetMetadata)
(package private) HeartbeatEvent	toHeartbeatEvent(Partition partition, com.google.cloud.spanner.Struct row, ChangeStreamResultSetMetadata resultSetMetadata)
private HeartbeatEvent	toHeartbeatRecordJson(Partition partition, com.google.protobuf.Value row, ChangeStreamResultSetMetadata resultSetMetadata)
(package private) Stream<ChangeStreamEvent>	toStreamEvent(Partition partition, com.google.cloud.spanner.Struct row, ChangeStreamResultSetMetadata resultSetMetadata)
(package private) ChangeStreamEvent	toStreamEventJson(Partition partition, String row, ChangeStreamResultSetMetadata resultSetMetadata)
private ValueCaptureType	valueCaptureTypeFrom(String name)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

printer

private final com.google.protobuf.util.JsonFormat.Printer printer

parser

private final com.google.protobuf.util.JsonFormat.Parser parser

DATA_CHANGE_RECORD_COLUMN

private static final String DATA_CHANGE_RECORD_COLUMN

See Also:

• Constant Field Values

HEARTBEAT_RECORD_COLUMN

private static final String HEARTBEAT_RECORD_COLUMN

See Also:

• Constant Field Values

CHILD_PARTITIONS_RECORD_COLUMN

private static final String CHILD_PARTITIONS_RECORD_COLUMN

See Also:

• Constant Field Values

COMMIT_TIMESTAMP_COLUMN

private static final String COMMIT_TIMESTAMP_COLUMN

See Also:

• Constant Field Values

SERVER_TRANSACTION_ID_COLUMN

private static final String SERVER_TRANSACTION_ID_COLUMN

See Also:

• Constant Field Values

IS_LAST_RECORD_IN_TRANSACTION_IN_PARTITION_COLUMN

private static final String IS_LAST_RECORD_IN_TRANSACTION_IN_PARTITION_COLUMN

See Also:

• Constant Field Values

RECORD_SEQUENCE_COLUMN

private static final String RECORD_SEQUENCE_COLUMN

See Also:

• Constant Field Values

TABLE_NAME_COLUMN

private static final String TABLE_NAME_COLUMN

See Also:

• Constant Field Values

COLUMN_TYPES_COLUMN

private static final String COLUMN_TYPES_COLUMN

See Also:

• Constant Field Values

MODS_COLUMN

private static final String MODS_COLUMN

See Also:

• Constant Field Values

MOD_TYPE_COLUMN

private static final String MOD_TYPE_COLUMN

See Also:

• Constant Field Values

VALUE_CAPTURE_TYPE_COLUMN

private static final String VALUE_CAPTURE_TYPE_COLUMN

See Also:

• Constant Field Values

NUMBER_OF_RECORDS_IN_TRANSACTION_COLUMN

private static final String NUMBER_OF_RECORDS_IN_TRANSACTION_COLUMN

See Also:

• Constant Field Values

NUMBER_OF_PARTITIONS_IN_TRANSACTION_COLUMN

private static final String NUMBER_OF_PARTITIONS_IN_TRANSACTION_COLUMN

See Also:

• Constant Field Values

NAME_COLUMN

private static final String NAME_COLUMN

See Also:

• Constant Field Values

TYPE_COLUMN

private static final String TYPE_COLUMN

See Also:

• Constant Field Values

IS_PRIMARY_KEY_COLUMN

private static final String IS_PRIMARY_KEY_COLUMN

See Also:

• Constant Field Values

ORDINAL_POSITION_COLUMN

private static final String ORDINAL_POSITION_COLUMN

See Also:

• Constant Field Values

KEYS_COLUMN

private static final String KEYS_COLUMN

See Also:

• Constant Field Values

OLD_VALUES_COLUMN

private static final String OLD_VALUES_COLUMN

See Also:

• Constant Field Values

NEW_VALUES_COLUMN

private static final String NEW_VALUES_COLUMN

See Also:

• Constant Field Values

TIMESTAMP_COLUMN

private static final String TIMESTAMP_COLUMN

See Also:

• Constant Field Values

START_TIMESTAMP_COLUMN

private static final String START_TIMESTAMP_COLUMN

See Also:

• Constant Field Values

CHILD_PARTITIONS_COLUMN

private static final String CHILD_PARTITIONS_COLUMN

See Also:

• Constant Field Values

PARENT_PARTITION_TOKENS_COLUMN

private static final String PARENT_PARTITION_TOKENS_COLUMN

See Also:

• Constant Field Values

TOKEN_COLUMN

private static final String TOKEN_COLUMN

See Also:

• Constant Field Values

TRANSACTION_TAG

private static final String TRANSACTION_TAG

See Also:

• Constant Field Values

SYSTEM_TRANSACTION

private static final String SYSTEM_TRANSACTION

See Also:

• Constant Field Values

databaseClient

private final com.google.cloud.spanner.DatabaseClient databaseClient

Constructor Details

ChangeStreamRecordMapper

public ChangeStreamRecordMapper(com.google.cloud.spanner.DatabaseClient databaseClient)

Method Details

toChangeStreamEvents

public List<ChangeStreamEvent> toChangeStreamEvents(Partition partition,
 ChangeStreamResultSet resultSet,
 ChangeStreamResultSetMetadata resultSetMetadata)

toStreamEvent

Stream<ChangeStreamEvent> toStreamEvent(Partition partition,
 com.google.cloud.spanner.Struct row,
 ChangeStreamResultSetMetadata resultSetMetadata)

toStreamEventJson

ChangeStreamEvent toStreamEventJson(Partition partition,
 String row,
 ChangeStreamResultSetMetadata resultSetMetadata)

toHeartbeatRecordJson

private HeartbeatEvent toHeartbeatRecordJson(Partition partition,
 com.google.protobuf.Value row,
 ChangeStreamResultSetMetadata resultSetMetadata)

toChildPartitionsRecordJson

private ChildPartitionsEvent toChildPartitionsRecordJson(Partition partition,
 com.google.protobuf.Value row,
 ChangeStreamResultSetMetadata resultSetMetadata)

childPartitionJsonFrom

private ChildPartition childPartitionJsonFrom(String partitionToken,
 com.google.protobuf.Value row)

isNonNullDataChangeRecordJson

private boolean isNonNullDataChangeRecordJson(com.google.protobuf.Value row)

isNonNullDataChangeRecord

boolean isNonNullDataChangeRecord(com.google.cloud.spanner.Struct row)

isNonNullHeartbeatRecord

boolean isNonNullHeartbeatRecord(com.google.cloud.spanner.Struct row)

isNonNullChildPartitionsRecord

boolean isNonNullChildPartitionsRecord(com.google.cloud.spanner.Struct row)

isNonNullHeartbeatRecordJson

private boolean isNonNullHeartbeatRecordJson(com.google.protobuf.Value row)

isNonNullChildPartitionsRecordJson

private boolean isNonNullChildPartitionsRecordJson(com.google.protobuf.Value row)

toDataChangeEvent

DataChangeEvent toDataChangeEvent(Partition partition,
 com.google.cloud.spanner.Struct row,
 ChangeStreamResultSetMetadata resultSetMetadata)

toDataChangeEventJson

DataChangeEvent toDataChangeEventJson(Partition partition,
 com.google.protobuf.Value row,
 ChangeStreamResultSetMetadata resultSetMetadata)

columnTypeJsonFrom

private Column columnTypeJsonFrom(com.google.protobuf.Value row)

modJsonFrom

private Mod modJsonFrom(com.google.protobuf.Value row,
 int modNumber)

valueCaptureTypeFrom

private ValueCaptureType valueCaptureTypeFrom(String name)

modTypeFrom

private ModType modTypeFrom(String name)

toHeartbeatEvent

HeartbeatEvent toHeartbeatEvent(Partition partition,
 com.google.cloud.spanner.Struct row,
 ChangeStreamResultSetMetadata resultSetMetadata)

toChildPartitionsEvent

ChildPartitionsEvent toChildPartitionsEvent(Partition partition,
 com.google.cloud.spanner.Struct row,
 ChangeStreamResultSetMetadata resultSetMetadata)

columnTypeFrom

Column columnTypeFrom(com.google.cloud.spanner.Struct struct)

modListFrom

List<Mod> modListFrom(List<com.google.cloud.spanner.Struct> list)

modFrom

Mod modFrom(int modNumber,
 com.google.cloud.spanner.Struct struct)

childPartitionFrom

ChildPartition childPartitionFrom(String partitionToken,
 com.google.cloud.spanner.Struct struct)

streamEventMetadataFrom

StreamEventMetadata streamEventMetadataFrom(Partition partition,
 com.google.cloud.Timestamp recordTimestamp,
 ChangeStreamResultSetMetadata resultSetMetadata)

getJsonString

String getJsonString(com.google.cloud.spanner.Struct struct,
 String columnName)

isPostgres

private boolean isPostgres()