org.apache.hadoop.hive.ql.metadata

Class HiveUtils

java.lang.Object

org.apache.hadoop.hive.ql.metadata.HiveUtils

public final class HiveUtils
extends Object

General collection of helper functions.

Field Summary

Fields

Modifier and Type	Field and Description
static char	COLON
static String	LBRACE
static String	LBRACKET
static String	LINE_SEP
static org.apache.commons.logging.Log	LOG
static char	QUOTE
static String	RBRACE
static String	RBRACKET

Method Summary

Methods

Modifier and Type	Method and Description
static String	escapeString(String str)
static org.apache.hadoop.io.Text	escapeText(org.apache.hadoop.io.Text text)
static HiveAuthenticationProvider	getAuthenticator(org.apache.hadoop.conf.Configuration conf, HiveConf.ConfVars authenticatorConfKey)
static HiveAuthorizationProvider	getAuthorizeProviderManager(org.apache.hadoop.conf.Configuration conf, String authzClassName, HiveAuthenticationProvider authenticator, boolean nullIfOtherClass) Create a new instance of HiveAuthorizationProvider
static HiveAuthorizerFactory	getAuthorizerFactory(org.apache.hadoop.conf.Configuration conf, HiveConf.ConfVars authorizationProviderConfKey) Return HiveAuthorizerFactory used by new authorization plugin interface.
static HiveIndexHandler	getIndexHandler(HiveConf conf, String indexHandlerClass)
static List<HiveMetastoreAuthorizationProvider>	getMetaStoreAuthorizeProviderManagers(org.apache.hadoop.conf.Configuration conf, HiveConf.ConfVars authorizationProviderConfKey, HiveAuthenticationProvider authenticator)
static HiveStorageHandler	getStorageHandler(org.apache.hadoop.conf.Configuration conf, String className)
static String	getUnparsedColumnNamesFromFieldSchema(List<FieldSchema> fieldSchemas) Convert FieldSchemas to columnNames with backticks around them.
static String	lightEscapeString(String str)
static int	unescapeText(org.apache.hadoop.io.Text text)
static String	unparseIdentifier(String identifier) Regenerate an identifier as part of unparsing it back to SQL text.
static String	unparseIdentifier(String identifier, org.apache.hadoop.conf.Configuration conf)

Methods inherited from class java.lang.Object

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

Field Detail

QUOTE

public static final char QUOTE

See Also:

Constant Field Values

COLON

public static final char COLON

See Also:

Constant Field Values

LBRACKET

public static final String LBRACKET

See Also:

Constant Field Values

RBRACKET

public static final String RBRACKET

See Also:

Constant Field Values

LBRACE

public static final String LBRACE

See Also:

Constant Field Values

RBRACE

public static final String RBRACE

See Also:

Constant Field Values

LINE_SEP

public static final String LINE_SEP

LOG

public static final org.apache.commons.logging.Log LOG

Method Detail

escapeString

public static String escapeString(String str)

escapeText

public static org.apache.hadoop.io.Text escapeText(org.apache.hadoop.io.Text text)

unescapeText

public static int unescapeText(org.apache.hadoop.io.Text text)

lightEscapeString

public static String lightEscapeString(String str)

unparseIdentifier

public static String unparseIdentifier(String identifier)

Regenerate an identifier as part of unparsing it back to SQL text.

unparseIdentifier

public static String unparseIdentifier(String identifier,
                       org.apache.hadoop.conf.Configuration conf)

getStorageHandler

public static HiveStorageHandler getStorageHandler(org.apache.hadoop.conf.Configuration conf,
                                   String className)
                                            throws HiveException

Throws:

HiveException

getIndexHandler

public static HiveIndexHandler getIndexHandler(HiveConf conf,
                               String indexHandlerClass)
                                        throws HiveException

Throws:

HiveException

getMetaStoreAuthorizeProviderManagers

public static List<HiveMetastoreAuthorizationProvider> getMetaStoreAuthorizeProviderManagers(org.apache.hadoop.conf.Configuration conf,
                                                                             HiveConf.ConfVars authorizationProviderConfKey,
                                                                             HiveAuthenticationProvider authenticator)
                                                                                      throws HiveException

Throws:

HiveException

getAuthorizeProviderManager

public static HiveAuthorizationProvider getAuthorizeProviderManager(org.apache.hadoop.conf.Configuration conf,
                                                    String authzClassName,
                                                    HiveAuthenticationProvider authenticator,
                                                    boolean nullIfOtherClass)
                                                             throws HiveException

Create a new instance of HiveAuthorizationProvider

Parameters:

conf -

authzClassName - - authorization provider class name

authenticator -

nullIfOtherClass - - return null if configuration does not point to a HiveAuthorizationProvider subclass

Returns:

new instance of HiveAuthorizationProvider

Throws:

HiveException

getAuthorizerFactory

public static HiveAuthorizerFactory getAuthorizerFactory(org.apache.hadoop.conf.Configuration conf,
                                         HiveConf.ConfVars authorizationProviderConfKey)
                                                  throws HiveException

Return HiveAuthorizerFactory used by new authorization plugin interface.

Parameters:

conf -

authorizationProviderConfKey -

Returns:

Throws:

HiveException - if HiveAuthorizerFactory specified in configuration could not

getAuthenticator

public static HiveAuthenticationProvider getAuthenticator(org.apache.hadoop.conf.Configuration conf,
                                          HiveConf.ConfVars authenticatorConfKey)
                                                   throws HiveException

Throws:

HiveException

getUnparsedColumnNamesFromFieldSchema

public static String getUnparsedColumnNamesFromFieldSchema(List<FieldSchema> fieldSchemas)

Convert FieldSchemas to columnNames with backticks around them.