net.snowflake.client.core

Class StmtUtil

java.lang.Object

net.snowflake.client.core.StmtUtil

public class StmtUtil
extends Object

Created by jhuang on 1/28/16.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StmtUtil.StmtInput Input for executing a statement on server
static class	StmtUtil.StmtOutput Output for running a statement on server

Field Summary

Fields

Modifier and Type	Field and Description
static String	SF_HEADER_AUTHORIZATION
static String	SF_HEADER_SNOWFLAKE_AUTHTYPE
static String	SF_HEADER_TOKEN_TAG
static String	SF_PATH_ABORT_REQUEST_V1
static String	SF_PATH_QUERY_V1
static String	SF_QUERY_REQUEST_ID

Constructor Summary

Constructors

Constructor and Description
StmtUtil()

Method Summary

Modifier and Type	Method and Description
static void	cancel(StmtUtil.StmtInput stmtInput) Cancel a statement identifiable by a request id
static StmtUtil.StmtOutput	execute(StmtUtil.StmtInput stmtInput) Execute a statement side effect: stmtInput.prevGetResultURL is set if we have started ping pong and receives an exception from session token expiration so that during retry we don't retry the query submission, but continue the ping pong process.
protected static String	getQueryResult(com.fasterxml.jackson.databind.JsonNode inProgressResponse, String mediaType, String previousGetResultPath, StmtUtil.StmtInput stmtInput) Issue get-result call to get query result given an in progress response.

Methods inherited from class java.lang.Object

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

Field Detail

SF_PATH_QUERY_V1

public static final String SF_PATH_QUERY_V1

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Constant Field Values

SF_PATH_ABORT_REQUEST_V1

public static final String SF_PATH_ABORT_REQUEST_V1

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Constant Field Values

SF_QUERY_REQUEST_ID

public static final String SF_QUERY_REQUEST_ID

See Also:

Constant Field Values

SF_HEADER_AUTHORIZATION

public static final String SF_HEADER_AUTHORIZATION

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Constant Field Values

SF_HEADER_SNOWFLAKE_AUTHTYPE

public static final String SF_HEADER_SNOWFLAKE_AUTHTYPE

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Constant Field Values

SF_HEADER_TOKEN_TAG

public static final String SF_HEADER_TOKEN_TAG

See Also:

Constant Field Values

Constructor Detail

StmtUtil

public StmtUtil()

Method Detail

execute

public static StmtUtil.StmtOutput execute(StmtUtil.StmtInput stmtInput)
                                   throws SFException,
                                          SnowflakeSQLException

Execute a statement side effect: stmtInput.prevGetResultURL is set if we have started ping pong and receives an exception from session token expiration so that during retry we don't retry the query submission, but continue the ping pong process.

Parameters:

stmtInput - input statement

Returns:

StmtOutput output statement

Throws:

SFException - exception raised from Snowflake components

SnowflakeSQLException - exception raised from Snowflake components

getQueryResult

protected static String getQueryResult(com.fasterxml.jackson.databind.JsonNode inProgressResponse,
                                       String mediaType,
                                       String previousGetResultPath,
                                       StmtUtil.StmtInput stmtInput)
                                throws SFException,
                                       SnowflakeSQLException

Issue get-result call to get query result given an in progress response.

Parameters:

inProgressResponse - In pregress response in JSON form

mediaType - media type name

previousGetResultPath - previous get results path

stmtInput - input statement

Returns:

results in string form

Throws:

SFException - exception raised from Snowflake components

SnowflakeSQLException - exception raised from Snowflake components

cancel

public static void cancel(StmtUtil.StmtInput stmtInput)
                   throws SFException,
                          SnowflakeSQLException

Cancel a statement identifiable by a request id

Parameters:

stmtInput - input statement

Throws:

SFException - if there is an internal exception

SnowflakeSQLException - if failed to cancel the statement