net.snowflake.client.jdbc

Class SnowflakeUtil

java.lang.Object

net.snowflake.client.jdbc.SnowflakeUtil

public class SnowflakeUtil
extends Object

Author:

jhuang

Field Summary

Fields

Modifier and Type	Field and Description
static int	EXTRA_TYPES_TIMESTAMP_LTZ Additional data types not covered by standard JDBC
static int	EXTRA_TYPES_TIMESTAMP_TZ

Constructor Summary

Constructors

Constructor and Description
SnowflakeUtil()

Method Summary

Modifier and Type	Method and Description
static void	checkErrorAndThrowException(com.fasterxml.jackson.databind.JsonNode rootNode) Check the error in the JSON node and generate an exception based on information extracted from the node.
static String	concatFilePathNames(String leftPath, String rightPath, String fileSep) A small function for concatenating two file paths by making sure one and only one path separator is placed between the two paths.
static ThreadPoolExecutor	createDefaultExecutorService(String threadNamePrefix, int parallel) Returns a new thread pool configured with the default settings.
static List<SnowflakeColumnMetadata>	describeFixedViewColumns(Class clazz)
static SnowflakeColumnMetadata	extractColumnMetadata(com.fasterxml.jackson.databind.JsonNode colNode)
static Throwable	getRootCause(Exception ex)
static String	greatestCommonPrefix(String val1, String val2)
static SnowflakeType	javaTypeToSFType(int javaType)
static String	javaTypeToSFTypeString(int javaType)
static void	logResponseDetails(org.apache.http.HttpResponse response, SFLogger logger) A utility to log response details.

Methods inherited from class java.lang.Object

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

Field Detail

EXTRA_TYPES_TIMESTAMP_LTZ

public static final int EXTRA_TYPES_TIMESTAMP_LTZ

Additional data types not covered by standard JDBC

See Also:

Constant Field Values

EXTRA_TYPES_TIMESTAMP_TZ

public static final int EXTRA_TYPES_TIMESTAMP_TZ

See Also:

Constant Field Values

Constructor Detail

SnowflakeUtil

public SnowflakeUtil()

Method Detail

checkErrorAndThrowException

public static void checkErrorAndThrowException(com.fasterxml.jackson.databind.JsonNode rootNode)
                                        throws SnowflakeSQLException

Check the error in the JSON node and generate an exception based on information extracted from the node.

Parameters:

rootNode - json object contains error information

Throws:

SnowflakeSQLException - the exception get from the error in the json

extractColumnMetadata

public static SnowflakeColumnMetadata extractColumnMetadata(com.fasterxml.jackson.databind.JsonNode colNode)
                                                     throws SnowflakeSQLException

Throws:

SnowflakeSQLException

javaTypeToSFTypeString

public static String javaTypeToSFTypeString(int javaType)
                                     throws SnowflakeSQLException

Throws:

SnowflakeSQLException

javaTypeToSFType

public static SnowflakeType javaTypeToSFType(int javaType)
                                      throws SnowflakeSQLException

Throws:

SnowflakeSQLException

concatFilePathNames

public static String concatFilePathNames(String leftPath,
                                         String rightPath,
                                         String fileSep)

A small function for concatenating two file paths by making sure one and only one path separator is placed between the two paths.

This is necessary since for S3 file name, having different number of file separators in a path will mean different files.

Typical use case is to concatenate a file name to a directory.

Parameters:

leftPath - left path

rightPath - right path

fileSep - file separator

Returns:

concatenated file path

greatestCommonPrefix

public static String greatestCommonPrefix(String val1,
                                          String val2)

describeFixedViewColumns

public static List<SnowflakeColumnMetadata> describeFixedViewColumns(Class clazz)
                                                              throws SnowflakeSQLException

Throws:

SnowflakeSQLException

logResponseDetails

public static void logResponseDetails(org.apache.http.HttpResponse response,
                                      SFLogger logger)

A utility to log response details.

Used when there is an error in http response

Parameters:

response - http response get from server

logger - logger object

createDefaultExecutorService

public static ThreadPoolExecutor createDefaultExecutorService(String threadNamePrefix,
                                                              int parallel)

Returns a new thread pool configured with the default settings.

Parameters:

threadNamePrefix - prefix of the thread name

parallel - the number of concurrency

Returns:

A new thread pool configured with the default settings.

getRootCause

public static Throwable getRootCause(Exception ex)