ru.yandex.clickhouse.jdbcbridge.impl

Class ScriptDataSource

java.lang.Object

ru.yandex.clickhouse.jdbcbridge.core.ManagedEntity

ru.yandex.clickhouse.jdbcbridge.core.NamedDataSource

ru.yandex.clickhouse.jdbcbridge.impl.ScriptDataSource

All Implemented Interfaces:

Closeable, AutoCloseable

public class ScriptDataSource
extends NamedDataSource

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_SCRIPT_EXTENSION
static String	EXTENSION_NAME
static String	FUNC_GET_RESULTS
static String	FUNC_INFER_TYPES

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	ScriptDataSource(String id, Repository<NamedDataSource> manager, io.vertx.core.json.JsonObject config)

Method Summary

Modifier and Type	Method and Description
void	executeMutation(String schema, String table, TableDefinition columns, QueryParameters parameters, ByteBuffer buffer, ResponseWriter writer)
protected ScriptEngine	getScriptEngine(String schema, String query)
protected TableDefinition	guessColumns(ScriptEngine engine, Object result, QueryParameters params)
protected TableDefinition	inferTypes(String schema, String originalQuery, String loadedQuery, QueryParameters params)
static void	initialize(ExtensionManager manager)
protected boolean	isSavedQuery(String file)
static ScriptDataSource	newInstance(Object... args)
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

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

DEFAULT_SCRIPT_EXTENSION

public static final String DEFAULT_SCRIPT_EXTENSION

See Also:

Constant Field Values

FUNC_INFER_TYPES

public static final String FUNC_INFER_TYPES

See Also:

Constant Field Values

FUNC_GET_RESULTS

public static final String FUNC_GET_RESULTS

See Also:

Constant Field Values

Constructor Detail

ScriptDataSource

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

Method Detail

initialize

public static void initialize(ExtensionManager manager)

newInstance

public static ScriptDataSource newInstance(Object... args)

getScriptEngine

protected ScriptEngine getScriptEngine(String schema,
                                       String query)

guessColumns

protected TableDefinition guessColumns(ScriptEngine engine,
                                       Object result,
                                       QueryParameters params)

isSavedQuery

protected boolean isSavedQuery(String file)

Overrides:

isSavedQuery in class NamedDataSource

inferTypes

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

Overrides:

inferTypes 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

executeMutation

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

Overrides:

executeMutation in class NamedDataSource