ru.yandex.clickhouse.jdbcbridge.impl

Class JdbcDataSource

java.lang.Object

ru.yandex.clickhouse.jdbcbridge.core.ManagedEntity

ru.yandex.clickhouse.jdbcbridge.core.NamedDataSource

ru.yandex.clickhouse.jdbcbridge.impl.JdbcDataSource

All Implemented Interfaces:

Closeable, AutoCloseable

public class JdbcDataSource
extends NamedDataSource

Field Summary

Fields

Modifier and Type	Field and Description
static String	EXTENSION_NAME

Fields inherited from class ru.yandex.clickhouse.jdbcbridge.core.NamedDataSource

CACHE_STAT_EVICTION_COUNT, CACHE_STAT_EVICTION_WEIGHT, CACHE_STAT_HIT_COUNT, CACHE_STAT_LOAD_FAILURE_COUNT, CACHE_STAT_LOAD_SUCCESS_COUNT, CACHE_STAT_MISS_COUNT, CACHE_STAT_TOTAL_LOAD_TIME, COLUMN_PREFIX, CONF_CACHE, CONF_CLASS, CONF_COLUMNS, CONF_CONVERTER, CONF_DEFAULTS, CONF_DRIVER_URLS, CONF_EXPIRATION, CONF_JDBC_TYPE, CONF_JDBC_URL, CONF_MAPPINGS, CONF_NATIVE_TYPE, CONF_PARAMETERS, CONF_QUERY_TIMEOUT, CONF_SCHEMA, CONF_SEALED, CONF_SIZE, CONF_TIMEZONE, CONF_TO_TYPE, CONF_TYPE, CONF_WRITE_TIMEOUT, converter, DEFAULT_QUOTE_IDENTIFIER, EMPTY_USAGE, USE_CUSTOM_DRIVER_LOADER

Fields inherited from class ru.yandex.clickhouse.jdbcbridge.core.ManagedEntity

aliases, CONF_ALIASES, CONF_ID, createDateTime, digest, id, type

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	JdbcDataSource(String id, Repository<NamedDataSource> resolver, io.vertx.core.json.JsonObject config)

Method Summary

Modifier and Type	Method and Description
void	close()
protected PreparedStatement	createPreparedStatement(Connection conn, String sql, QueryParameters parameters)
protected Statement	createStatement(Connection conn)
protected Statement	createStatement(Connection conn, QueryParameters parameters)
protected static void	deregisterJdbcDriver(String driverClassName)
void	executeMutation(String schema, String table, TableDefinition columns, QueryParameters params, ByteBuffer buffer, ResponseWriter writer)
protected Driver	findDriver(String url)
protected String	getColumnName(ResultSetMetaData meta, int columnIndex)
protected ColumnDefinition[]	getColumnsFromResultSet(ResultSet rs, QueryParameters params)
protected Connection	getConnection()
protected long	getFirstMutationResult(Statement stmt)
protected ResultSet	getFirstQueryResult(Statement stmt, boolean hasResultSet)
String	getPoolUsage()
String	getQuoteIdentifier()
String	getType() Get type of the entity.
protected TableDefinition	inferTypes(String schema, String originalQuery, String loadedQuery, QueryParameters params)
static void	initialize(ExtensionManager manager)
protected void	initQuoteIdentifier(Connection conn)
protected boolean	isSavedQuery(String file)
static JdbcDataSource	newInstance(Object... args)
protected void	setTimeout(Statement stmt, int expectedTimeout)
protected void	write(PreparedStatement stmt, ColumnDefinition[] cols, QueryParameters params, ByteBuffer buffer)
protected void	writeMutationResult(String schema, String originalQuery, String loadedQuery, QueryParameters params, ColumnDefinition[] requestColumns, ColumnDefinition[] customColumns, DefaultValues defaultValues, ResponseWriter writer)
protected void	writeQueryResult(String schema, String originalQuery, String loadedQuery, QueryParameters params, ColumnDefinition[] requestColumns, ColumnDefinition[] customColumns, DefaultValues defaultValues, ResponseWriter writer)

Methods inherited from class ru.yandex.clickhouse.jdbcbridge.core.NamedDataSource

executeQuery, executeQuery, generateColumnName, getCacheUsage, getCreateDateTime, getCustomColumns, getCustomColumnsAsJsonString, getDefaultValues, getDefaultValuesAsJsonString, getDriverClassLoader, getDriverUrls, getParametersAsJsonString, getQueryTimeout, getQueryTimeout, getResultColumns, getTimeZone, getUsage, getWriteTimeout, getWriteTimeout, isSealed, loadSavedQueryAsNeeded, newQueryParameters, validate, writeMutationResult

Methods inherited from class ru.yandex.clickhouse.jdbcbridge.core.ManagedEntity

getAliases, getCreationDateTime, getId, isDifferentFrom

Methods inherited from class java.lang.Object

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

Field Detail

EXTENSION_NAME

public static final String EXTENSION_NAME

See Also:

Constant Field Values

Constructor Detail

JdbcDataSource

protected JdbcDataSource(String id,
                         Repository<NamedDataSource> resolver,
                         io.vertx.core.json.JsonObject config)

Method Detail

deregisterJdbcDriver

protected static void deregisterJdbcDriver(String driverClassName)

initialize

public static void initialize(ExtensionManager manager)

newInstance

public static JdbcDataSource newInstance(Object... args)

findDriver

protected Driver findDriver(String url)

getConnection

protected final Connection getConnection()
                                  throws SQLException

Throws:

SQLException

createStatement

protected final Statement createStatement(Connection conn)
                                   throws SQLException

Throws:

SQLException

createStatement

protected final Statement createStatement(Connection conn,
                                          QueryParameters parameters)
                                   throws SQLException

Throws:

SQLException

createPreparedStatement

protected final PreparedStatement createPreparedStatement(Connection conn,
                                                          String sql,
                                                          QueryParameters parameters)
                                                   throws SQLException

Throws:

SQLException

setTimeout

protected final void setTimeout(Statement stmt,
                                int expectedTimeout)

getFirstMutationResult

protected long getFirstMutationResult(Statement stmt)
                               throws SQLException

Throws:

SQLException

getFirstQueryResult

protected ResultSet getFirstQueryResult(Statement stmt,
                                        boolean hasResultSet)
                                 throws SQLException

Throws:

SQLException

getColumnName

protected String getColumnName(ResultSetMetaData meta,
                               int columnIndex)
                        throws SQLException

Throws:

SQLException

getColumnsFromResultSet

protected ColumnDefinition[] getColumnsFromResultSet(ResultSet rs,
                                                     QueryParameters params)
                                              throws SQLException

Throws:

SQLException

inferTypes

protected TableDefinition inferTypes(String schema,
                                     String originalQuery,
                                     String loadedQuery,
                                     QueryParameters params)

Overrides:

inferTypes in class NamedDataSource

isSavedQuery

protected boolean isSavedQuery(String file)

Overrides:

isSavedQuery in class NamedDataSource

writeMutationResult

protected void writeMutationResult(String schema,
                                   String originalQuery,
                                   String loadedQuery,
                                   QueryParameters params,
                                   ColumnDefinition[] requestColumns,
                                   ColumnDefinition[] customColumns,
                                   DefaultValues defaultValues,
                                   ResponseWriter writer)

Overrides:

writeMutationResult in class NamedDataSource

writeQueryResult

protected void writeQueryResult(String schema,
                                String originalQuery,
                                String loadedQuery,
                                QueryParameters params,
                                ColumnDefinition[] requestColumns,
                                ColumnDefinition[] customColumns,
                                DefaultValues defaultValues,
                                ResponseWriter writer)

Overrides:

writeQueryResult in class NamedDataSource

write

protected final void write(PreparedStatement stmt,
                           ColumnDefinition[] cols,
                           QueryParameters params,
                           ByteBuffer buffer)
                    throws SQLException

Throws:

SQLException

initQuoteIdentifier

protected final void initQuoteIdentifier(Connection conn)

getType

public final String getType()

Description copied from class: ManagedEntity

Get type of the entity.

Overrides:

getType in class NamedDataSource

Returns:

type of the entity

getQuoteIdentifier

public final String getQuoteIdentifier()

Overrides:

getQuoteIdentifier in class NamedDataSource

getPoolUsage

public String getPoolUsage()

Overrides:

getPoolUsage in class NamedDataSource

executeMutation

public void executeMutation(String schema,
                            String table,
                            TableDefinition columns,
                            QueryParameters params,
                            ByteBuffer buffer,
                            ResponseWriter writer)

Overrides:

executeMutation in class NamedDataSource

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class NamedDataSource