org.calrissian.accumulorecipes.commons.iterators.support

Class QueryParser

java.lang.Object

org.calrissian.accumulorecipes.commons.iterators.support.QueryParser

All Implemented Interfaces:

org.apache.commons.jexl2.parser.ParserVisitor

Direct Known Subclasses:

RangeCalculator

public class QueryParser
extends Object
implements org.apache.commons.jexl2.parser.ParserVisitor

Parses the criteria for the purposes of extracting terms, operators, and literals for criteria optimization. This class does not necessarily understand how to parse all of the possible combinations of the JEXL syntax, but that does not mean that the criteria will not evaluate against the event objects. It means that the unsupported operators will not be parsed and included in the optimization step.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	QueryParser.QueryTerm

Field Summary

Fields

Modifier and Type	Field and Description
protected Set<String>	negatedTerms

Constructor Summary

Constructors

Constructor and Description
QueryParser()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	decodeResults(Object left, Object right, StringBuilder fieldName, org.calrissian.accumulorecipes.commons.iterators.support.QueryParser.ObjectHolder holder)
void	execute(String query)
Set<String>	getAndTermsForOptimizer()
org.apache.commons.jexl2.parser.ASTJexlScript	getAST()
int	getHashValue()
TreeNode	getIteratorTree()
Set<String>	getNegatedTermsForOptimizer()
Set<String>	getOrTermsForOptimizer()
Set<String>	getQueryIdentifiers()
Set<Object>	getQueryLiterals()
Multimap<String,QueryParser.QueryTerm>	getQueryTerms()
Object	visit(org.apache.commons.jexl2.parser.ASTAdditiveNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTAdditiveOperator node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTAmbiguous node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTAndNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTArrayAccess node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTArrayLiteral node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTAssignment node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTBitwiseAndNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTBitwiseComplNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTBitwiseOrNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTBitwiseXorNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTBlock node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTConstructorNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTDivNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTEmptyFunction node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTEQNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTERNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTFalseNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTFloatLiteral node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTForeachStatement node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTFunctionNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTGENode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTGTNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTIdentifier node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTIfStatement node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTIntegerLiteral node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTJexlScript node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTLENode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTLTNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTMapEntry node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTMapLiteral node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTMethodNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTModNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTMulNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTNENode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTNotNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTNRNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTNullLiteral node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTOrNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTReference node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTSizeFunction node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTSizeMethod node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTStringLiteral node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTTernaryNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTTrueNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTUnaryMinusNode node, Object data)
Object	visit(org.apache.commons.jexl2.parser.ASTWhileStatement node, Object data)
Object	visit(org.apache.commons.jexl2.parser.SimpleNode node, Object data)

Methods inherited from class java.lang.Object

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

Field Detail

negatedTerms

protected Set<String> negatedTerms

Constructor Detail

QueryParser

public QueryParser()

Method Detail

execute

public void execute(String query)
             throws org.apache.commons.jexl2.parser.ParseException

Throws:

org.apache.commons.jexl2.parser.ParseException

getHashValue

public int getHashValue()

Returns:

this queries hash value

getIteratorTree

public TreeNode getIteratorTree()

getAST

public org.apache.commons.jexl2.parser.ASTJexlScript getAST()

Returns:

JEXL abstract syntax tree

getNegatedTermsForOptimizer

public Set<String> getNegatedTermsForOptimizer()

Returns:

Set of field names to use in the optimizer for nots. As a general rule none of these terms should be used to find an event and should they should be evaluated on each event after being found.

getAndTermsForOptimizer

public Set<String> getAndTermsForOptimizer()

Returns:

Set of field names to use in the optimizer for ands. As a general rule any one term of an and clause can be used to find associated events.

getOrTermsForOptimizer

public Set<String> getOrTermsForOptimizer()

Returns:

Set of field names to use in the optimizer for ors. As a general rule any terms that are part of an or clause need to be searched to find the associated events.

getQueryLiterals

public Set<Object> getQueryLiterals()

Returns:

String, Integer, and Float literals used in the criteria.

getQueryIdentifiers

public Set<String> getQueryIdentifiers()

Returns:

Set of all identifiers (field names) in the criteria.

getQueryTerms

public Multimap<String,QueryParser.QueryTerm> getQueryTerms()

Returns:

map of term (field name) to QueryTerm object

visit

public Object visit(org.apache.commons.jexl2.parser.SimpleNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTJexlScript node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTBlock node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTAmbiguous node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTIfStatement node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTWhileStatement node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTForeachStatement node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTAssignment node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTTernaryNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTOrNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTAndNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTBitwiseOrNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTBitwiseXorNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTBitwiseAndNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTEQNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTNENode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTLTNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTGTNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTLENode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTGENode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTERNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTNRNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTAdditiveNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTAdditiveOperator node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTMulNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTDivNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTModNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTUnaryMinusNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTBitwiseComplNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTNotNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTIdentifier node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTNullLiteral node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTTrueNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTFalseNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTIntegerLiteral node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTFloatLiteral node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTStringLiteral node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTArrayLiteral node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTMapLiteral node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTMapEntry node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTEmptyFunction node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTSizeFunction node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTFunctionNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTMethodNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTSizeMethod node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTConstructorNode node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTArrayAccess node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

visit

public Object visit(org.apache.commons.jexl2.parser.ASTReference node,
           Object data)

Specified by:

visit in interface org.apache.commons.jexl2.parser.ParserVisitor

decodeResults

protected void decodeResults(Object left,
                 Object right,
                 StringBuilder fieldName,
                 org.calrissian.accumulorecipes.commons.iterators.support.QueryParser.ObjectHolder holder)