idx int64 0 165k | question stringlengths 73 5.81k | target stringlengths 5 918 |
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155,300 | private static void fixDistributedApproxCountDistinct ( AggregatePlanNode distNode , AggregatePlanNode coordNode ) { assert ( distNode != null ) ; assert ( coordNode != null ) ; List < ExpressionType > distAggTypes = distNode . getAggregateTypes ( ) ; boolean hasApproxCountDistinct = false ; for ( int i = 0 ; i < distA... | This function is called once it s been determined that we can push down an aggregation plan node . |
155,301 | protected AbstractPlanNode checkLimitPushDownViability ( AbstractPlanNode root ) { AbstractPlanNode receiveNode = root ; List < ParsedColInfo > orderBys = m_parsedSelect . orderByColumns ( ) ; boolean orderByCoversAllGroupBy = m_parsedSelect . groupByIsAnOrderByPermutation ( ) ; while ( ! ( receiveNode instanceof Recei... | Check if we can push the limit node down . |
155,302 | private static Set < String > getIndexedColumnSetForTable ( Table table ) { HashSet < String > columns = new HashSet < > ( ) ; for ( Index index : table . getIndexes ( ) ) { for ( ColumnRef colRef : index . getColumns ( ) ) { columns . add ( colRef . getColumn ( ) . getTypeName ( ) ) ; } } return columns ; } | Get the unique set of names of all columns that are part of an index on the given table . |
155,303 | private static boolean isNullRejecting ( Collection < String > tableAliases , List < AbstractExpression > exprs ) { for ( AbstractExpression expr : exprs ) { for ( String tableAlias : tableAliases ) { if ( ExpressionUtil . isNullRejectingExpression ( expr , tableAlias ) ) { return true ; } } } return false ; } | Verify if an expression from the input list is NULL - rejecting for any of the tables from the list |
155,304 | private int determineIndexOrdering ( StmtTableScan tableScan , int keyComponentCount , List < AbstractExpression > indexedExprs , List < ColumnRef > indexedColRefs , AccessPath retval , int [ ] orderSpoilers , List < AbstractExpression > bindingsForOrder ) { ParsedSelectStmt pss = ( m_parsedStmt instanceof ParsedSelect... | Determine if an index which is in the AccessPath argument retval can satisfy a parsed select statement s order by or window function ordering requirements . |
155,305 | private static List < AbstractExpression > findBindingsForOneIndexedExpression ( ExpressionOrColumn nextStatementEOC , ExpressionOrColumn indexEntry ) { assert ( nextStatementEOC . m_expr != null ) ; AbstractExpression nextStatementExpr = nextStatementEOC . m_expr ; if ( indexEntry . m_colRef != null ) { ColumnRef inde... | Match the indexEntry which is from an index with a statement expression or column . The nextStatementEOC must be an expression not a column reference . |
155,306 | private static boolean removeExactMatchCoveredExpressions ( AbstractExpression coveringExpr , List < AbstractExpression > exprsToCover ) { boolean hasMatch = false ; Iterator < AbstractExpression > iter = exprsToCover . iterator ( ) ; while ( iter . hasNext ( ) ) { AbstractExpression exprToCover = iter . next ( ) ; if ... | Loop over the expressions to cover to find ones that exactly match the covering expression and remove them from the original list . Returns true if there is at least one match . False otherwise . |
155,307 | private static List < AbstractExpression > removeNotNullCoveredExpressions ( StmtTableScan tableScan , List < AbstractExpression > coveringExprs , List < AbstractExpression > exprsToCover ) { Set < TupleValueExpression > coveringTves = new HashSet < > ( ) ; for ( AbstractExpression coveringExpr : coveringExprs ) { if (... | Remove NOT NULL expressions that are covered by the NULL - rejecting expressions . For example COL IS NOT NULL is covered by the COL > 0 NULL - rejecting comparison expression . |
155,308 | protected static AbstractPlanNode addSendReceivePair ( AbstractPlanNode scanNode ) { SendPlanNode sendNode = new SendPlanNode ( ) ; sendNode . addAndLinkChild ( scanNode ) ; ReceivePlanNode recvNode = new ReceivePlanNode ( ) ; recvNode . addAndLinkChild ( sendNode ) ; return recvNode ; } | Insert a send receive pair above the supplied scanNode . |
155,309 | protected static AbstractPlanNode getAccessPlanForTable ( JoinNode tableNode ) { StmtTableScan tableScan = tableNode . getTableScan ( ) ; AccessPath path = tableNode . m_currentAccessPath ; assert ( path != null ) ; if ( path . index == null ) { return getScanAccessPlanForTable ( tableScan , path ) ; } return getIndexA... | Given an access path build the single - site or distributed plan that will assess the data from the table according to the path . |
155,310 | private static AbstractPlanNode getIndexAccessPlanForTable ( StmtTableScan tableScan , AccessPath path ) { Index index = path . index ; IndexScanPlanNode scanNode = new IndexScanPlanNode ( tableScan , index ) ; AbstractPlanNode resultNode = scanNode ; scanNode . setSortDirection ( path . sortDirection ) ; for ( Abstrac... | Get an index scan access plan for a table . |
155,311 | private static AbstractPlanNode injectIndexedJoinWithMaterializedScan ( AbstractExpression listElements , IndexScanPlanNode scanNode ) { MaterializedScanPlanNode matScan = new MaterializedScanPlanNode ( ) ; assert ( listElements instanceof VectorValueExpression || listElements instanceof ParameterValueExpression ) ; ma... | Generate a plan for an IN - LIST - driven index scan |
155,312 | private static void replaceInListFilterWithEqualityFilter ( List < AbstractExpression > endExprs , AbstractExpression inListRhs , AbstractExpression equalityRhs ) { for ( AbstractExpression comparator : endExprs ) { AbstractExpression otherExpr = comparator . getRight ( ) ; if ( otherExpr == inListRhs ) { endExprs . re... | with an equality filter referencing the second given rhs . |
155,313 | CallEvent [ ] makeRandomEvent ( ) { long callId = ++ lastCallIdUsed ; Integer agentId = agentsAvailable . poll ( ) ; if ( agentId == null ) { return null ; } Long phoneNo = phoneNumbersAvailable . poll ( ) ; assert ( phoneNo != null ) ; Date startTS = new Date ( currentSystemMilliTimestamp ) ; long durationms = - 1 ; l... | Generate a random call event with a duration . |
155,314 | public CallEvent next ( long systemCurrentTimeMillis ) { if ( systemCurrentTimeMillis > currentSystemMilliTimestamp ) { long eventBacklog = targetEventsThisMillisecond - eventsSoFarThisMillisecond ; targetEventsThisMillisecond = ( long ) Math . floor ( targetEventsPerMillisecond ) ; double targetFraction = targetEvents... | Return the next call event that is safe for delivery or null if there are no safe objects to deliver . |
155,315 | private void validate ( ) { long delayedEventCount = delayedEvents . size ( ) ; long outstandingAgents = config . agents - agentsAvailable . size ( ) ; long outstandingPhones = config . numbers - phoneNumbersAvailable . size ( ) ; if ( outstandingAgents != outstandingPhones ) { throw new RuntimeException ( String . for... | Smoke check on validity of data structures . This was useful while getting the code right for this class but it doesn t do much now unless the code needs changes . |
155,316 | void printSummary ( ) { System . out . printf ( "There are %d agents outstanding and %d phones. %d entries waiting to go.\n" , agentsAvailable . size ( ) , phoneNumbersAvailable . size ( ) , delayedEvents . size ( ) ) ; } | Debug statement to help users verify there are no lost or delayed events . |
155,317 | private boolean isNegativeNumber ( String token ) { try { Double . parseDouble ( token ) ; return true ; } catch ( NumberFormatException e ) { return false ; } } | Check if the token is a negative number . |
155,318 | private boolean isLongOption ( String token ) { if ( ! token . startsWith ( "-" ) || token . length ( ) == 1 ) { return false ; } int pos = token . indexOf ( "=" ) ; String t = pos == - 1 ? token : token . substring ( 0 , pos ) ; if ( ! options . getMatchingOptions ( t ) . isEmpty ( ) ) { return true ; } else if ( getL... | Tells if the token looks like a long option . |
155,319 | private void handleUnknownToken ( String token ) throws ParseException { if ( token . startsWith ( "-" ) && token . length ( ) > 1 && ! stopAtNonOption ) { throw new UnrecognizedOptionException ( "Unrecognized option: " + token , token ) ; } cmd . addArg ( token ) ; if ( stopAtNonOption ) { skipParsing = true ; } } | Handles an unknown token . If the token starts with a dash an UnrecognizedOptionException is thrown . Otherwise the token is added to the arguments of the command line . If the stopAtNonOption flag is set this stops the parsing and the remaining tokens are added as - is in the arguments of the command line . |
155,320 | public String getText ( ) { if ( sqlTextStr == null ) { sqlTextStr = new String ( sqlText , Constants . UTF8ENCODING ) ; } return sqlTextStr ; } | Get the text of the SQL statement represented . |
155,321 | public static String canonicalizeStmt ( String stmtStr ) { stmtStr = stmtStr . replaceAll ( "\n" , " " ) ; stmtStr = stmtStr . trim ( ) ; if ( ! stmtStr . endsWith ( ";" ) ) { stmtStr += ";" ; } return stmtStr ; } | use the same statement to compute crc . |
155,322 | private static boolean [ ] createSafeOctets ( String safeChars ) { int maxChar = - 1 ; char [ ] safeCharArray = safeChars . toCharArray ( ) ; for ( char c : safeCharArray ) { maxChar = Math . max ( c , maxChar ) ; } boolean [ ] octets = new boolean [ maxChar + 1 ] ; for ( char c : safeCharArray ) { octets [ c ] = true ... | Creates a boolean array with entries corresponding to the character values specified in safeChars set to true . The array is as small as is required to hold the given character information . |
155,323 | String getTableName ( ) { if ( opType == OpTypes . MULTICOLUMN ) { return tableName ; } if ( opType == OpTypes . COLUMN ) { if ( rangeVariable == null ) { return tableName ; } return rangeVariable . getTable ( ) . getName ( ) . name ; } return "" ; } | Returns the table name for a column expression as a string |
155,324 | VoltXMLElement voltAnnotateColumnXML ( VoltXMLElement exp ) { if ( tableName != null ) { if ( rangeVariable != null && rangeVariable . rangeTable != null && rangeVariable . tableAlias != null && rangeVariable . rangeTable . tableType == TableBase . SYSTEM_SUBQUERY ) { exp . attributes . put ( "table" , rangeVariable . ... | VoltDB added method to provide detail for a non - catalog - dependent representation of this HSQLDB object . |
155,325 | void parseTablesAndParams ( VoltXMLElement root ) { parseParameters ( root ) ; parseCommonTableExpressions ( root ) ; for ( VoltXMLElement node : root . children ) { if ( node . name . equalsIgnoreCase ( "tablescan" ) ) { parseTable ( node ) ; } else if ( node . name . equalsIgnoreCase ( "tablescans" ) ) { parseTables ... | Parse tables and parameters . |
155,326 | private AbstractExpression parseExpressionNode ( VoltXMLElement exprNode ) { String elementName = exprNode . name . toLowerCase ( ) ; XMLElementExpressionParser parser = m_exprParsers . get ( elementName ) ; if ( parser == null ) { throw new PlanningErrorException ( "Unsupported expression node '" + elementName + "'" )... | Given a VoltXMLElement expression node translate it into an AbstractExpression . This is mostly a lookup in the table m_exprParsers . |
155,327 | private AbstractExpression parseVectorExpression ( VoltXMLElement exprNode ) { ArrayList < AbstractExpression > args = new ArrayList < > ( ) ; for ( VoltXMLElement argNode : exprNode . children ) { assert ( argNode != null ) ; AbstractExpression argExpr = parseExpressionNode ( argNode ) ; assert ( argExpr != null ) ; a... | Parse a Vector value for SQL - IN |
155,328 | private SelectSubqueryExpression parseSubqueryExpression ( VoltXMLElement exprNode ) { assert ( exprNode . children . size ( ) == 1 ) ; VoltXMLElement subqueryElmt = exprNode . children . get ( 0 ) ; AbstractParsedStmt subqueryStmt = parseSubquery ( subqueryElmt ) ; String withoutAlias = null ; StmtSubqueryScan stmtSub... | Parse an expression subquery |
155,329 | private StmtTableScan resolveStmtTableScanByAlias ( String tableAlias ) { StmtTableScan tableScan = getStmtTableScanByAlias ( tableAlias ) ; if ( tableScan != null ) { return tableScan ; } if ( m_parentStmt != null ) { return m_parentStmt . resolveStmtTableScanByAlias ( tableAlias ) ; } return null ; } | Return StmtTableScan by table alias . In case of correlated queries may need to walk up the statement tree . |
155,330 | protected StmtTableScan addTableToStmtCache ( Table table , String tableAlias ) { StmtTableScan tableScan = m_tableAliasMap . get ( tableAlias ) ; if ( tableScan == null ) { tableScan = new StmtTargetTableScan ( table , tableAlias , m_stmtId ) ; m_tableAliasMap . put ( tableAlias , tableScan ) ; } return tableScan ; } | Add a table to the statement cache . |
155,331 | protected StmtSubqueryScan addSubqueryToStmtCache ( AbstractParsedStmt subquery , String tableAlias ) { assert ( subquery != null ) ; if ( tableAlias == null ) { tableAlias = AbstractParsedStmt . TEMP_TABLE_NAME + "_" + subquery . m_stmtId ; } StmtSubqueryScan subqueryScan = new StmtSubqueryScan ( subquery , tableAlias... | Add a sub - query to the statement cache . |
155,332 | private StmtTargetTableScan addSimplifiedSubqueryToStmtCache ( StmtSubqueryScan subqueryScan , StmtTargetTableScan tableScan ) { String tableAlias = subqueryScan . getTableAlias ( ) ; assert ( tableAlias != null ) ; Table promotedTable = tableScan . getTargetTable ( ) ; StmtTargetTableScan promotedScan = new StmtTarget... | Replace an existing subquery scan with its underlying table scan . The subquery has already passed all the checks from the canSimplifySubquery method . Subquery ORDER BY clause is ignored if such exists . |
155,333 | protected AbstractExpression replaceExpressionsWithPve ( AbstractExpression expr ) { assert ( expr != null ) ; if ( expr instanceof TupleValueExpression ) { int paramIdx = ParameterizationInfo . getNextParamIndex ( ) ; ParameterValueExpression pve = new ParameterValueExpression ( paramIdx , expr ) ; m_parameterTveMap .... | Helper method to replace all TVEs and aggregated expressions with the corresponding PVEs . The original expressions are placed into the map to be propagated to the EE . The key to the map is the parameter index . |
155,334 | private StmtCommonTableScan resolveCommonTableByName ( String tableName , String tableAlias ) { StmtCommonTableScan answer = null ; StmtCommonTableScanShared scan = null ; for ( AbstractParsedStmt scope = this ; scope != null && scan == null ; scope = scope . getParentStmt ( ) ) { scan = scope . getCommonTableByName ( ... | Look for a common table by name possibly in parent scopes . This is different from resolveStmtTableByAlias in that it looks for common tables and only by name not by alias . Of course a name and an alias are both strings so this is kind of a stylized distinction . |
155,335 | protected void parseParameters ( VoltXMLElement root ) { VoltXMLElement paramsNode = null ; for ( VoltXMLElement node : root . children ) { if ( node . name . equalsIgnoreCase ( "parameters" ) ) { paramsNode = node ; break ; } } if ( paramsNode == null ) { return ; } for ( VoltXMLElement node : paramsNode . children ) ... | Populate the statement s paramList from the parameters element . Each parameter has an id and an index both of which are numeric . It also has a type and an indication of whether it s a vector parameter . For each parameter we create a ParameterValueExpression named pve which holds the type and vector parameter indicat... |
155,336 | protected void promoteUnionParametersFromChild ( AbstractParsedStmt childStmt ) { getParamsByIndex ( ) . putAll ( childStmt . getParamsByIndex ( ) ) ; m_parameterTveMap . putAll ( childStmt . m_parameterTveMap ) ; } | in the EE . |
155,337 | HashMap < AbstractExpression , Set < AbstractExpression > > analyzeValueEquivalence ( ) { m_joinTree . analyzeJoinExpressions ( m_noTableSelectionList ) ; return m_joinTree . getAllEquivalenceFilters ( ) ; } | Collect value equivalence expressions across the entire SQL statement |
155,338 | protected Table getTableFromDB ( String tableName ) { Table table = m_db . getTables ( ) . getExact ( tableName ) ; return table ; } | Look up a table by name . This table may be stored in the local catalog or else the global catalog . |
155,339 | private AbstractExpression parseTableCondition ( VoltXMLElement tableScan , String joinOrWhere ) { AbstractExpression condExpr = null ; for ( VoltXMLElement childNode : tableScan . children ) { if ( ! childNode . name . equalsIgnoreCase ( joinOrWhere ) ) { continue ; } assert ( childNode . children . size ( ) == 1 ) ; ... | Parse a where or join clause . This behavior is common to all kinds of statements . |
155,340 | LimitPlanNode limitPlanNodeFromXml ( VoltXMLElement limitXml , VoltXMLElement offsetXml ) { if ( limitXml == null && offsetXml == null ) { return null ; } String node ; long limitParameterId = - 1 ; long offsetParameterId = - 1 ; long limit = - 1 ; long offset = 0 ; if ( limitXml != null ) { if ( ( node = limitXml . at... | Produce a LimitPlanNode from the given XML |
155,341 | protected boolean orderByColumnsCoverUniqueKeys ( ) { HashMap < String , List < AbstractExpression > > baseTableAliases = new HashMap < > ( ) ; for ( ParsedColInfo col : orderByColumns ( ) ) { AbstractExpression expr = col . m_expression ; List < TupleValueExpression > baseTVEExpressions = expr . findAllTupleValueSubex... | Order by Columns or expressions has to operate on the display columns or expressions . |
155,342 | protected void addHonoraryOrderByExpressions ( HashSet < AbstractExpression > orderByExprs , List < ParsedColInfo > candidateColumns ) { if ( m_tableAliasMap . size ( ) != 1 ) { return ; } HashMap < AbstractExpression , Set < AbstractExpression > > valueEquivalence = analyzeValueEquivalence ( ) ; for ( ParsedColInfo co... | Given a set of order - by expressions and a select list which is a list of columns each with an expression and an alias expand the order - by list with new expressions which could be on the order - by list without changing the sort order and which are otherwise helpful . |
155,343 | protected boolean producesOneRowOutput ( ) { if ( m_tableAliasMap . size ( ) != 1 ) { return false ; } StmtTableScan scan = m_tableAliasMap . values ( ) . iterator ( ) . next ( ) ; Table table = getTableFromDB ( scan . getTableName ( ) ) ; if ( table == null ) { return false ; } CatalogMap < Index > indexes = table . g... | row else false |
155,344 | public Collection < String > calculateUDFDependees ( ) { List < String > answer = new ArrayList < > ( ) ; Collection < AbstractExpression > fCalls = findAllSubexpressionsOfClass ( FunctionExpression . class ) ; for ( AbstractExpression fCall : fCalls ) { FunctionExpression fexpr = ( FunctionExpression ) fCall ; if ( fe... | Calculate the UDF dependees . These are the UDFs called in an expression in this procedure . |
155,345 | public void statementGuaranteesDeterminism ( boolean hasLimitOrOffset , boolean order , String contentDeterminismDetail ) { m_statementHasLimitOrOffset = hasLimitOrOffset ; m_statementIsOrderDeterministic = order ; if ( contentDeterminismDetail != null ) { m_contentDeterminismDetail = contentDeterminismDetail ; } } | Mark the level of result determinism imposed by the statement which can save us from a difficult determination based on the plan graph . |
155,346 | private static void setParamIndexes ( BitSet ints , List < AbstractExpression > params ) { for ( AbstractExpression ae : params ) { assert ( ae instanceof ParameterValueExpression ) ; ParameterValueExpression pve = ( ParameterValueExpression ) ae ; int param = pve . getParameterIndex ( ) ; ints . set ( param ) ; } } | sources of bindings IndexScans and IndexCounts . |
155,347 | private static int [ ] bitSetToIntVector ( BitSet ints ) { int intCount = ints . cardinality ( ) ; if ( intCount == 0 ) { return null ; } int [ ] result = new int [ intCount ] ; int nextBit = ints . nextSetBit ( 0 ) ; for ( int ii = 0 ; ii < intCount ; ii ++ ) { assert ( nextBit != - 1 ) ; result [ ii ] = nextBit ; nex... | to convert the set bits to their integer indexes . |
155,348 | public VoltType [ ] parameterTypes ( ) { if ( m_parameterTypes == null ) { m_parameterTypes = new VoltType [ getParameters ( ) . length ] ; int ii = 0 ; for ( ParameterValueExpression param : getParameters ( ) ) { m_parameterTypes [ ii ++ ] = param . getValueType ( ) ; } } return m_parameterTypes ; } | This is assumed to be called only after parameters has been fully initialized . |
155,349 | public static Session newSession ( int dbID , String user , String password , int timeZoneSeconds ) { Database db = ( Database ) databaseIDMap . get ( dbID ) ; if ( db == null ) { return null ; } Session session = db . connect ( user , password , timeZoneSeconds ) ; session . isNetwork = true ; return session ; } | Used by server to open a new session |
155,350 | public static Session newSession ( String type , String path , String user , String password , HsqlProperties props , int timeZoneSeconds ) { Database db = getDatabase ( type , path , props ) ; if ( db == null ) { return null ; } return db . connect ( user , password , timeZoneSeconds ) ; } | Used by in - process connections and by Servlet |
155,351 | public static synchronized Database lookupDatabaseObject ( String type , String path ) { assert ( type == DatabaseURL . S_MEM ) ; java . util . HashMap < String , Database > databaseMap = memDatabaseMap ; String key = path ; return ( Database ) databaseMap . get ( key ) ; } | Looks up database of a given type and path in the registry . Returns null if there is none . |
155,352 | private static synchronized void addDatabaseObject ( String type , String path , Database db ) { assert ( type == DatabaseURL . S_MEM ) ; java . util . HashMap < String , Database > databaseMap = memDatabaseMap ; String key = path ; databaseIDMap . put ( db . databaseID , db ) ; databaseMap . put ( key , db ) ; } | Adds a database to the registry . Returns null if there is none . |
155,353 | static void removeDatabase ( Database database ) { int dbID = database . databaseID ; String type = database . getType ( ) ; String path = database . getPath ( ) ; notifyServers ( database ) ; assert ( type == DatabaseURL . S_MEM ) ; java . util . HashMap < String , Database > databaseMap = memDatabaseMap ; String key ... | Removes the database from registry . |
155,354 | private static void deRegisterServer ( Server server , Database db ) { Iterator it = serverMap . values ( ) . iterator ( ) ; for ( ; it . hasNext ( ) ; ) { HashSet databases = ( HashSet ) it . next ( ) ; databases . remove ( db ) ; if ( databases . isEmpty ( ) ) { it . remove ( ) ; } } } | Deregisters a server as serving a given database . Not yet used . |
155,355 | private static void registerServer ( Server server , Database db ) { if ( ! serverMap . containsKey ( server ) ) { serverMap . put ( server , new HashSet ( ) ) ; } HashSet databases = ( HashSet ) serverMap . get ( server ) ; databases . add ( db ) ; } | Registers a server as serving a given database . |
155,356 | private static void notifyServers ( Database db ) { Iterator it = serverMap . keySet ( ) . iterator ( ) ; for ( ; it . hasNext ( ) ; ) { Server server = ( Server ) it . next ( ) ; HashSet databases = ( HashSet ) serverMap . get ( server ) ; if ( databases . contains ( db ) ) { } } } | Notifies all servers that serve the database that the database has been shutdown . |
155,357 | private static String filePathToKey ( String path ) { try { return FileUtil . getDefaultInstance ( ) . canonicalPath ( path ) ; } catch ( Exception e ) { return path ; } } | thrown exception to an HsqlException in the process |
155,358 | public static boolean isComment ( String sql ) { Matcher commentMatcher = PAT_SINGLE_LINE_COMMENT . matcher ( sql ) ; return commentMatcher . matches ( ) ; } | Check if a SQL string is a comment . |
155,359 | public static String extractDDLToken ( String sql ) { String ddlToken = null ; Matcher ddlMatcher = PAT_ANY_DDL_FIRST_TOKEN . matcher ( sql ) ; if ( ddlMatcher . find ( ) ) { ddlToken = ddlMatcher . group ( 1 ) . toLowerCase ( ) ; } return ddlToken ; } | Get the DDL token if any at the start of this statement . |
155,360 | public static String extractDDLTableName ( String sql ) { Matcher matcher = PAT_TABLE_DDL_PREAMBLE . matcher ( sql ) ; if ( matcher . find ( ) ) { return matcher . group ( 2 ) . toLowerCase ( ) ; } return null ; } | Get the table name for a CREATE or DROP DDL statement . |
155,361 | public static String checkPermitted ( String sql ) { for ( CheckedPattern cp : BLACKLISTS ) { CheckedPattern . Result result = cp . check ( sql ) ; if ( result . matcher != null ) { return String . format ( "%s, in statement: %s" , result . explanation , sql ) ; } } boolean hadWLMatch = false ; for ( CheckedPattern cp ... | Naive filtering for stuff we haven t implemented yet . Hopefully this gets whittled away and eventually disappears . |
155,362 | static private boolean matchesStringAtIndex ( char [ ] buf , int index , String str ) { int strLength = str . length ( ) ; if ( index + strLength > buf . length ) { return false ; } for ( int i = 0 ; i < strLength ; ++ i ) { if ( buf [ index + i ] != str . charAt ( i ) ) { return false ; } } return true ; } | Determine if a character buffer contains the specified string a the specified index . Avoids an array index exception if the buffer is too short . |
155,363 | private static String removeCStyleComments ( String ddl ) { StringBuilder sb = new StringBuilder ( ) ; for ( String part : PAT_STRIP_CSTYLE_COMMENTS . split ( ddl ) ) { sb . append ( part ) ; } return sb . toString ( ) ; } | Remove c - style comments from a string aggressively |
155,364 | private static ObjectToken findObjectToken ( String objectTypeName ) { if ( objectTypeName != null ) { for ( ObjectToken ot : OBJECT_TOKENS ) { if ( ot . token . equalsIgnoreCase ( objectTypeName ) ) { return ot ; } } } return null ; } | Find information about an object type token if it s a known object type . |
155,365 | synchronized void pushPair ( Session session , Object [ ] row1 , Object [ ] row2 ) { if ( maxRowsQueued == 0 ) { trigger . fire ( triggerType , name . name , table . getName ( ) . name , row1 , row2 ) ; return ; } if ( rowsQueued >= maxRowsQueued ) { if ( nowait ) { pendingQueue . removeLast ( ) ; } else { try { wait (... | The main thread tells the trigger thread to fire by this call . If this Trigger is not threaded then the fire method is caled immediately and executed by the main thread . Otherwise the row data objects are added to the queue to be used by the Trigger thread . |
155,366 | public synchronized CompiledPlan planSqlCore ( String sql , StatementPartitioning partitioning ) { TrivialCostModel costModel = new TrivialCostModel ( ) ; DatabaseEstimates estimates = new DatabaseEstimates ( ) ; CompiledPlan plan = null ; try ( QueryPlanner planner = new QueryPlanner ( sql , "PlannerTool" , "PlannerTo... | Stripped down compile that is ONLY used to plan default procedures . |
155,367 | private boolean isReadOnlyProcedure ( String pname ) { final Boolean b = m_procedureInfo . get ( ) . get ( pname ) ; if ( b == null ) { return false ; } return b ; } | Check if procedure is readonly? |
155,368 | private VoltTable [ ] aggregateProcedureProfileStats ( VoltTable [ ] baseStats ) { if ( baseStats == null || baseStats . length != 1 ) { return baseStats ; } StatsProcProfTable timeTable = new StatsProcProfTable ( ) ; baseStats [ 0 ] . resetRowPosition ( ) ; while ( baseStats [ 0 ] . advanceRow ( ) ) { boolean transact... | Produce PROCEDUREPROFILE aggregation of PROCEDURE subselector |
155,369 | private VoltTable [ ] aggregateProcedureInputStats ( VoltTable [ ] baseStats ) { if ( baseStats == null || baseStats . length != 1 ) { return baseStats ; } StatsProcInputTable timeTable = new StatsProcInputTable ( ) ; baseStats [ 0 ] . resetRowPosition ( ) ; while ( baseStats [ 0 ] . advanceRow ( ) ) { boolean transact... | Produce PROCEDUREINPUT aggregation of PROCEDURE subselector |
155,370 | private VoltTable [ ] aggregateProcedureOutputStats ( VoltTable [ ] baseStats ) { if ( baseStats == null || baseStats . length != 1 ) { return baseStats ; } StatsProcOutputTable timeTable = new StatsProcOutputTable ( ) ; baseStats [ 0 ] . resetRowPosition ( ) ; while ( baseStats [ 0 ] . advanceRow ( ) ) { boolean trans... | Produce PROCEDUREOUTPUT aggregation of PROCEDURE subselector |
155,371 | public void notifyOfCatalogUpdate ( ) { m_procedureInfo = getProcedureInformationfoSupplier ( ) ; m_registeredStatsSources . put ( StatsSelector . PROCEDURE , new NonBlockingHashMap < Long , NonBlockingHashSet < StatsSource > > ( ) ) ; } | Please be noted that this function will be called from Site thread where most other functions in the class are from StatsAgent thread . |
155,372 | public void addState ( long agreementHSId ) { SiteState ss = m_stateBySite . get ( agreementHSId ) ; if ( ss != null ) return ; ss = new SiteState ( ) ; ss . hsId = agreementHSId ; ss . newestConfirmedTxnId = m_newestConfirmedTxnId ; m_stateBySite . put ( agreementHSId , ss ) ; } | Once a failed node is rejoined put it s sites back into all of the data structures here . |
155,373 | public Pair < CompleteTransactionTask , Boolean > pollFirstCompletionTask ( CompletionCounter nextTaskCounter ) { Pair < CompleteTransactionTask , Boolean > pair = m_compTasks . pollFirstEntry ( ) . getValue ( ) ; if ( m_compTasks . isEmpty ( ) ) { return pair ; } Pair < CompleteTransactionTask , Boolean > next = peekF... | Remove the CompleteTransactionTask from the head and count the next CompleteTransactionTask |
155,374 | private static boolean isComparable ( CompleteTransactionTask c1 , CompleteTransactionTask c2 ) { return c1 . getMsgTxnId ( ) == c2 . getMsgTxnId ( ) && MpRestartSequenceGenerator . isForRestart ( c1 . getTimestamp ( ) ) == MpRestartSequenceGenerator . isForRestart ( c2 . getTimestamp ( ) ) ; } | 4 ) restart completion and repair completion can t overwrite each other |
155,375 | public boolean matchCompleteTransactionTask ( long txnId , long timestamp ) { if ( ! m_compTasks . isEmpty ( ) ) { long lowestTxnId = m_compTasks . firstKey ( ) ; if ( txnId == lowestTxnId ) { Pair < CompleteTransactionTask , Boolean > pair = m_compTasks . get ( lowestTxnId ) ; return timestamp == pair . getFirst ( ) .... | Only match CompleteTransactionTask at head of the queue |
155,376 | public static VoltTable aggregateStats ( VoltTable stats ) throws IllegalArgumentException { stats . resetRowPosition ( ) ; if ( stats . getRowCount ( ) == 0 ) { return stats ; } String role = null ; Map < Byte , State > states = new TreeMap < > ( ) ; while ( stats . advanceRow ( ) ) { final byte clusterId = ( byte ) s... | Aggregates DRROLE statistics reported by multiple nodes into a single cluster - wide row . The role column should be the same across all nodes . The state column may defer slightly and it uses the same logical AND - ish operation to combine the states . |
155,377 | public static String getString ( String key ) { if ( RESOURCE_BUNDLE == null ) throw new RuntimeException ( "Localized messages from resource bundle '" + BUNDLE_NAME + "' not loaded during initialization of driver." ) ; try { if ( key == null ) throw new IllegalArgumentException ( "Message key can not be null" ) ; Stri... | Returns the localized message for the given message key |
155,378 | public void createAllDevNullTargets ( Exception lastWriteException ) { Map < Integer , SnapshotDataTarget > targets = Maps . newHashMap ( ) ; final AtomicInteger numTargets = new AtomicInteger ( ) ; for ( Deque < SnapshotTableTask > tasksForSite : m_taskListsForHSIds . values ( ) ) { for ( SnapshotTableTask task : task... | In case the deferred setup phase fails some data targets may have not been created yet . This method will close all existing data targets and replace all with DevNullDataTargets so that snapshot can be drained . |
155,379 | private Map < String , Boolean > collapseSets ( List < List < String > > allTableSets ) { Map < String , Boolean > answer = new TreeMap < > ( ) ; for ( List < String > tables : allTableSets ) { for ( String table : tables ) { answer . put ( table , false ) ; } } return answer ; } | Take a list of list of table names and collapse into a map which maps all table names to false . We will set the correct values later on . We just want to get the structure right now . Note that tables may be named multiple time in the lists of lists of tables . Everything gets mapped to false so we don t care . |
155,380 | private List < List < String > > decodeTables ( String [ ] tablesThatMustBeEmpty ) { List < List < String > > answer = new ArrayList < > ( ) ; for ( String tableSet : tablesThatMustBeEmpty ) { String tableNames [ ] = tableSet . split ( "\\+" ) ; answer . add ( Arrays . asList ( tableNames ) ) ; } return answer ; } | Decode sets of names encoded as by concatenation with plus signs into lists of lists of strings . Preserve the order since we need it to match to error messages later on . |
155,381 | public VoltTable [ ] run ( SystemProcedureExecutionContext ctx ) { createAndExecuteSysProcPlan ( SysProcFragmentId . PF_shutdownSync , SysProcFragmentId . PF_shutdownSyncDone ) ; SynthesizedPlanFragment pfs [ ] = new SynthesizedPlanFragment [ ] { new SynthesizedPlanFragment ( SysProcFragmentId . PF_shutdownCommand , tr... | Begin an un - graceful shutdown . |
155,382 | public void drain ( ) throws InterruptedException , IOException { ClientImpl currentClient = this . getClient ( ) ; if ( currentClient == null ) { throw new IOException ( "Client is unavailable for drain()." ) ; } currentClient . drain ( ) ; } | Block the current thread until all queued stored procedure invocations have received responses or there are no more connections to the cluster |
155,383 | public void backpressureBarrier ( ) throws InterruptedException , IOException { ClientImpl currentClient = this . getClient ( ) ; if ( currentClient == null ) { throw new IOException ( "Client is unavailable for backpressureBarrier()." ) ; } currentClient . backpressureBarrier ( ) ; } | Blocks the current thread until there is no more backpressure or there are no more connections to the database |
155,384 | public boolean absolute ( int position ) { if ( position < 0 ) { position += size ; } if ( position < 0 ) { beforeFirst ( ) ; return false ; } if ( position > size ) { afterLast ( ) ; return false ; } if ( size == 0 ) { return false ; } if ( position < currentPos ) { beforeFirst ( ) ; } while ( position > currentPos ) ... | Uses similar semantics to java . sql . ResultSet except this is 0 based . When position is 0 or positive it is from the start ; when negative it is from end |
155,385 | private void printErrorAndQuit ( String message ) { System . out . println ( message + "\n-------------------------------------------------------------------------------------\n" ) ; printUsage ( ) ; System . exit ( - 1 ) ; } | Prints out an error message and the application usage print - out then terminates the application . |
155,386 | public AppHelper printActualUsage ( ) { System . out . println ( "-------------------------------------------------------------------------------------" ) ; int maxLength = 24 ; for ( Argument a : Arguments ) if ( maxLength < a . Name . length ( ) ) maxLength = a . Name . length ( ) ; for ( Argument a : Arguments ) { S... | Prints a full list of actual arguments that will be used by the application after interpretation of defaults and actual argument values as passed by the user on the command line . |
155,387 | public byte byteValue ( String name ) { try { return Byte . valueOf ( this . getArgumentByName ( name ) . Value ) ; } catch ( NullPointerException npe ) { printErrorAndQuit ( String . format ( "Argument '%s' was not provided." , name ) ) ; } catch ( Exception x ) { printErrorAndQuit ( String . format ( "Argument '%s' c... | Retrieves the value of an argument as a byte . |
155,388 | public short shortValue ( String name ) { try { return Short . valueOf ( this . getArgumentByName ( name ) . Value ) ; } catch ( NullPointerException npe ) { printErrorAndQuit ( String . format ( "Argument '%s' was not provided." , name ) ) ; } catch ( Exception x ) { printErrorAndQuit ( String . format ( "Argument '%s... | Retrieves the value of an argument as a short . |
155,389 | public int intValue ( String name ) { try { return Integer . valueOf ( this . getArgumentByName ( name ) . Value ) ; } catch ( NullPointerException npe ) { printErrorAndQuit ( String . format ( "Argument '%s' was not provided." , name ) ) ; } catch ( Exception x ) { printErrorAndQuit ( String . format ( "Argument '%s' ... | Retrieves the value of an argument as a int . |
155,390 | public long longValue ( String name ) { try { return Long . valueOf ( this . getArgumentByName ( name ) . Value ) ; } catch ( NullPointerException npe ) { printErrorAndQuit ( String . format ( "Argument '%s' was not provided." , name ) ) ; } catch ( Exception x ) { printErrorAndQuit ( String . format ( "Argument '%s' c... | Retrieves the value of an argument as a long . |
155,391 | public double doubleValue ( String name ) { try { return Double . valueOf ( this . getArgumentByName ( name ) . Value ) ; } catch ( NullPointerException npe ) { printErrorAndQuit ( String . format ( "Argument '%s' was not provided." , name ) ) ; } catch ( Exception x ) { printErrorAndQuit ( String . format ( "Argument ... | Retrieves the value of an argument as a double . |
155,392 | public String stringValue ( String name ) { try { return this . getArgumentByName ( name ) . Value ; } catch ( Exception npe ) { printErrorAndQuit ( String . format ( "Argument '%s' was not provided." , name ) ) ; } return null ; } | Retrieves the value of an argument as a string . |
155,393 | public boolean booleanValue ( String name ) { try { return Boolean . valueOf ( this . getArgumentByName ( name ) . Value ) ; } catch ( NullPointerException npe ) { printErrorAndQuit ( String . format ( "Argument '%s' was not provided." , name ) ) ; } catch ( Exception x ) { printErrorAndQuit ( String . format ( "Argume... | Retrieves the value of an argument as a boolean . |
155,394 | public void setBounds ( int x , int y , int w , int h ) { super . setBounds ( x , y , w , h ) ; iSbHeight = sbHoriz . getPreferredSize ( ) . height ; iSbWidth = sbVert . getPreferredSize ( ) . width ; iHeight = h - iSbHeight ; iWidth = w - iSbWidth ; sbHoriz . setBounds ( 0 , iHeight , iWidth , iSbHeight ) ; sbVert . s... | with additional replacement of deprecated methods |
155,395 | private String write ( String logDir ) throws IOException , ExecutionException , InterruptedException { final File file = new File ( logDir , "trace_" + System . currentTimeMillis ( ) + ".json.gz" ) ; if ( file . exists ( ) ) { throw new IOException ( "Trace file " + file . getAbsolutePath ( ) + " already exists" ) ; }... | Write the events in the queue to file . |
155,396 | public static TraceEventBatch log ( Category cat ) { final VoltTrace tracer = s_tracer ; if ( tracer != null && tracer . isCategoryEnabled ( cat ) ) { final TraceEventBatch batch = new TraceEventBatch ( cat ) ; tracer . queueEvent ( batch ) ; return batch ; } else { return null ; } } | Create a trace event batch for the given category . The events that go into this batch should all originate from the same thread . |
155,397 | public static String closeAllAndShutdown ( String logDir , long timeOutMillis ) throws IOException { String path = null ; final VoltTrace tracer = s_tracer ; if ( tracer != null ) { if ( logDir != null ) { path = dump ( logDir ) ; } s_tracer = null ; if ( timeOutMillis >= 0 ) { try { tracer . m_writerThread . shutdownN... | Close all open files and wait for shutdown . |
155,398 | private static synchronized void start ( ) throws IOException { if ( s_tracer == null ) { final VoltTrace tracer = new VoltTrace ( ) ; final Thread thread = new Thread ( tracer ) ; thread . setDaemon ( true ) ; thread . start ( ) ; s_tracer = tracer ; } } | Creates and starts a new tracer . If one already exists this is a no - op . Synchronized to prevent multiple threads enabling it at the same time . |
155,399 | public static String dump ( String logDir ) throws IOException { String path = null ; final VoltTrace tracer = s_tracer ; if ( tracer != null ) { final File dir = new File ( logDir ) ; if ( ! dir . getParentFile ( ) . canWrite ( ) || ! dir . getParentFile ( ) . canExecute ( ) ) { throw new IOException ( "Trace log pare... | Write all trace events in the queue to file . |
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