diff --git a/modules/core/pom.xml b/modules/core/pom.xml
index f9985835e5..e574dda528 100644
--- a/modules/core/pom.xml
+++ b/modules/core/pom.xml
@@ -145,6 +145,44 @@
+
+ org.antlr
+ antlr4-maven-plugin
+
+
+ antlr
+ generate-sources
+
+ antlr4
+
+
+ ${project.basedir}/src/main/antlr4
+
+ -visitor
+
+
+
+
+
+
+
+ org.codehaus.mojo
+ build-helper-maven-plugin
+
+
+ add-source
+ generate-sources
+
+ add-source
+
+
+
+ ${project.build.directory}/generated-sources/antlr4
+
+
+
+
+
@@ -506,5 +544,9 @@
org.apache.logging.log4j
log4j-slf4j-impl
+
+ org.antlr
+ antlr4-runtime
+
diff --git a/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/ExpressionLexer.g4 b/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/ExpressionLexer.g4
new file mode 100644
index 0000000000..869f7b9064
--- /dev/null
+++ b/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/ExpressionLexer.g4
@@ -0,0 +1,110 @@
+lexer grammar ExpressionLexer;
+
+JSONPATH_FUNCTIONS: 'contains ' | 'in' | 'nin' | 'subsetof' | 'size' | 'empty' | 'empty true' | 'empty false' | '=~';
+
+// Tokens for identifiers, operators, and keywords
+VAR: 'var';
+PAYLOAD: 'payload' | '$';
+HEADERS: 'headers';
+CONFIG: 'config';
+ATTRIBUTES: 'attributes';
+AXIS2: 'axis2';
+SYNAPSE: 'synapse';
+REGISTRY: 'registry';
+SECRET: 'secret';
+BASE64ENCODE: 'base64encode';
+BASE64DECODE: 'base64decode';
+URLENCODE: 'urlEncode';
+URLDECODE: 'urlDecode';
+NOW: 'now';
+TODAY: 'today';
+FORMATDATE: 'formatDate';
+ISNUMBER: 'isNumber';
+ISSTRING: 'isString';
+ISARRAY: 'isArray';
+ISOBJECT: 'isObject';
+ROUND: 'round';
+INTEGER: 'integer';
+FLOAT: 'float';
+STRING: 'string';
+BOOLEAN: 'boolean';
+ABS: 'abs';
+FLOOR: 'floor';
+CEIL: 'ceil';
+SQRT: 'sqrt';
+LOG: 'log';
+POW: 'pow';
+LENGTH: 'length';
+TOUPPER: 'toUpper';
+TOLOWER: 'toLower';
+SUBSTRING: 'subString';
+STARTSWITH: 'startsWith';
+ENDSWITH: 'endsWith';
+CONTAINS: 'contains';
+TRIM: 'trim';
+REPLACE: 'replace';
+SPLIT: 'split';
+AND: 'and' | '&&';
+OR: 'or' | '||';
+NOT: 'not' | '!';
+
+DOUBLE_DOT : '..';
+ASTERISK : '*';
+
+// Operators
+PLUS: '+';
+MINUS: '-';
+DIV: '/';
+MODULO: '%';
+EQ: '==';
+NEQ: '!=';
+GT: '>';
+LT: '<';
+GTE: '>=';
+LTE: '<=';
+
+// Delimiters
+LPAREN: '(';
+RPAREN: ')';
+LBRACKET: '[';
+RBRACKET: ']';
+DOT: '.';
+COMMA: ',';
+COLON: ':';
+QUOTE: '"' | '\'';
+
+// Literals
+BOOLEAN_LITERAL: 'true' | 'false';
+NUMBER: '-'? [0-9]+ ('.' [0-9]+)?;
+
+
+STRING_LITERAL : ('"' (ESC | ~["\\])* '"' | '\'' (ESC | ~['\\])* '\'');
+
+
+fragment ESC
+ : '\\' [btnfr"'\\/] // Basic escape sequences
+ | UNICODE_ESC
+ | OCTAL_ESC
+ ;
+
+fragment UNICODE_ESC
+ : '\\' 'u' HEX_DIGIT HEX_DIGIT HEX_DIGIT HEX_DIGIT
+ ;
+
+fragment OCTAL_ESC
+ : '\\' [0-3]? [0-7] [0-7]
+ ;
+
+fragment HEX_DIGIT
+ : [0-9a-fA-F]
+ ;
+
+// Identifiers
+ID: [a-zA-Z_][a-zA-Z_0-9]*;
+GETPROPERTY: 'getProperty';
+// Special symbols for JSONPath filter expressions
+QUESTION: '?';
+AT: '@';
+
+// Whitespace
+WS: [ \t\n\r]+ -> skip;
diff --git a/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/ExpressionParser.g4 b/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/ExpressionParser.g4
new file mode 100644
index 0000000000..ad339009bd
--- /dev/null
+++ b/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/ExpressionParser.g4
@@ -0,0 +1,174 @@
+parser grammar ExpressionParser;
+
+options {
+ tokenVocab = ExpressionLexer;
+}
+
+expression
+ : comparisonExpression
+ | conditionalExpression
+ | EOF
+ ;
+
+conditionalExpression
+ : comparisonExpression (QUESTION expression COLON expression)?
+ ;
+
+comparisonExpression
+ : logicalExpression ( (GT | LT | GTE | LTE | EQ | NEQ) logicalExpression )*
+ ;
+
+logicalExpression
+ : arithmeticExpression (AND logicalExpression | OR logicalExpression)?
+ ;
+
+arithmeticExpression
+ : term ( (PLUS | MINUS) term )*
+ ;
+
+term
+ : factor ( (ASTERISK | DIV | MODULO) factor )*
+ ;
+
+factor
+ : literal
+ | functionCall
+ | variableAccess
+ | payloadAccess
+ | headerAccess
+ | configAccess
+ | attributeAccess
+ | LPAREN expression RPAREN
+ ;
+
+configAccess
+ : CONFIG DOT headerName
+ ;
+
+headerAccess
+ : HEADERS DOT headerName
+ ;
+
+headerName
+ : ID // Standard identifier
+ | STRING_LITERAL // Quoted string literal to allow spaces
+ ;
+
+attributeAccess
+ : ATTRIBUTES (DOT AXIS2 DOT propertyName // Access syntax for attributes.axis2.property
+ | DOT SYNAPSE DOT propertyName) // Access syntax for attributes.synapse.property
+ ;
+
+propertyName
+ : ID // Standard identifier
+ | STRING_LITERAL // Quoted string literal to allow spaces
+ ;
+
+literal
+ : arrayLiteral
+ | BOOLEAN_LITERAL
+ | NUMBER
+ | STRING_LITERAL
+ ;
+
+variableAccess
+ : VAR ( DOT ID // Dot notation: var.variableName
+ | (DOT)? LBRACKET STRING_LITERAL RBRACKET // Bracket notation: var["variableName"]
+ )
+ ( (DOUBLE_DOT ASTERISK // Handles recursive descent and wildcard, like var.variableName..*
+ | DOT ASTERISK // Handles wildcard after dot notation, like var.variableName.*
+ | DOT ID
+ | LBRACKET arrayIndex RBRACKET // Handles array access, like var.variableName[...]
+ | DOT LBRACKET arrayIndex RBRACKET // Handles dot followed by bracket notation, like var.variableName.["property"]
+ )*
+ )
+ ;
+
+arrayLiteral
+ : LBRACKET (expression (COMMA expression)*)? RBRACKET // Array with zero or more literals, separated by commas
+ ;
+
+payloadAccess
+ : PAYLOAD ( (DOUBLE_DOT ASTERISK
+ | DOUBLE_DOT ID
+ | DOT ID
+ | LBRACKET arrayIndex RBRACKET
+ | DOT LBRACKET arrayIndex RBRACKET
+ | DOT ASTERISK)*
+ | DOUBLE_DOT ID (LBRACKET arrayIndex RBRACKET)? )
+ ;
+
+arrayIndex
+ : NUMBER
+ | STRING_LITERAL
+ | expression
+ | multipleArrayIndices
+ | sliceArrayIndex
+ | expression ( (PLUS | MINUS | MULT | DIV ) expression)*
+ | ASTERISK
+ | QUESTION filterExpression
+ ;
+
+multipleArrayIndices
+ : expression (COMMA expression)+
+ ;
+
+sliceArrayIndex
+ : signedExpressions? COLON signedExpressions? (COLON signedExpressions?)?
+ ;
+
+signedExpressions
+ : MINUS? expression
+ ;
+
+filterExpression
+ : (filterComponent)+
+ ;
+
+filterComponent
+ : variableAccess
+ | payloadAccess
+ | stringOrOperator
+ ;
+
+stringOrOperator
+ : QUESTION | AT | JSONPATH_FUNCTIONS| STRING_LITERAL |NUMBER | BOOLEAN_LITERAL | ID | GT | LT | GTE | LTE | EQ | NEQ
+ | PLUS | MINUS | MULT | DIV | LPAREN | RPAREN | DOT | COMMA | COLON | WS | AND | OR | NOT | ASTERISK
+ ;
+
+functionCall
+ : LENGTH LPAREN expression RPAREN
+ | TOUPPER LPAREN expression RPAREN
+ | TOLOWER LPAREN expression RPAREN
+ | SUBSTRING LPAREN expression COMMA expression (COMMA expression)? RPAREN
+ | STARTSWITH LPAREN expression COMMA expression RPAREN
+ | ENDSWITH LPAREN expression COMMA expression RPAREN
+ | CONTAINS LPAREN expression COMMA expression RPAREN
+ | TRIM LPAREN expression RPAREN
+ | REPLACE LPAREN expression COMMA expression COMMA expression RPAREN
+ | SPLIT LPAREN expression COMMA expression RPAREN
+ | ABS LPAREN expression RPAREN
+ | FLOOR LPAREN expression RPAREN
+ | CEIL LPAREN expression RPAREN
+ | SQRT LPAREN expression RPAREN
+ | LOG LPAREN expression RPAREN
+ | POW LPAREN expression COMMA expression RPAREN
+ | REGISTRY LPAREN expression RPAREN (DOT GETPROPERTY LPAREN expression RPAREN)?
+ | SECRET LPAREN expression RPAREN
+ | BASE64ENCODE LPAREN expression (COMMA expression)? RPAREN
+ | BASE64DECODE LPAREN expression RPAREN
+ | URLENCODE LPAREN expression (COMMA expression)? RPAREN
+ | URLDECODE LPAREN expression RPAREN
+ | ISNUMBER LPAREN expression RPAREN
+ | ISSTRING LPAREN expression RPAREN
+ | ISARRAY LPAREN expression RPAREN
+ | ISOBJECT LPAREN expression RPAREN
+ | NOW LPAREN RPAREN
+ | TODAY LPAREN STRING_LITERAL RPAREN
+ | FORMATDATE LPAREN expression COMMA STRING_LITERAL RPAREN
+ | ROUND LPAREN expression RPAREN
+ | INTEGER LPAREN expression RPAREN
+ | FLOAT LPAREN expression RPAREN
+ | STRING LPAREN expression RPAREN
+ | BOOLEAN LPAREN expression RPAREN
+ ;
diff --git a/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/gen/ExpressionLexer.interp b/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/gen/ExpressionLexer.interp
new file mode 100644
index 0000000000..b96e884757
--- /dev/null
+++ b/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/gen/ExpressionLexer.interp
@@ -0,0 +1,231 @@
+token literal names:
+null
+null
+'var'
+null
+'headers'
+'attributes'
+'registry'
+'secret'
+'base64encode'
+'base64decode'
+'urlEncode'
+'urlDecode'
+'now'
+'today'
+'formatDate'
+'isNumber'
+'isString'
+'isArray'
+'isObject'
+'round'
+'integer'
+'float'
+'string'
+'boolean'
+'abs'
+'floor'
+'ceil'
+'sqrt'
+'log'
+'pow'
+'length'
+'toUpper'
+'toLower'
+'subString'
+'startsWith'
+'endsWith'
+'contains'
+'trim'
+'replace'
+'split'
+null
+null
+null
+'..'
+'*'
+'+'
+'-'
+'/'
+'%'
+'=='
+'!='
+'>'
+'<'
+'>='
+'<='
+'('
+')'
+'['
+']'
+'.'
+','
+':'
+null
+null
+null
+null
+null
+'getProperty'
+'?'
+'@'
+null
+
+token symbolic names:
+null
+JSONPATH_FUNCTIONS
+VAR
+PAYLOAD
+HEADERS
+ATTRIBUTES
+REGISTRY
+SECRET
+BASE64ENCODE
+BASE64DECODE
+URLENCODE
+URLDECODE
+NOW
+TODAY
+FORMATDATE
+ISNUMBER
+ISSTRING
+ISARRAY
+ISOBJECT
+ROUND
+INTEGER
+FLOAT
+STRING
+BOOLEAN
+ABS
+FLOOR
+CEIL
+SQRT
+LOG
+POW
+LENGTH
+TOUPPER
+TOLOWER
+SUBSTRING
+STARTSWITH
+ENDSWITH
+CONTAINS
+TRIM
+REPLACE
+SPLIT
+AND
+OR
+NOT
+DOUBLE_DOT
+ASTERISK
+PLUS
+MINUS
+DIV
+MODULO
+EQ
+NEQ
+GT
+LT
+GTE
+LTE
+LPAREN
+RPAREN
+LBRACKET
+RBRACKET
+DOT
+COMMA
+COLON
+QUOTE
+BOOLEAN_LITERAL
+NUMBER
+STRING_LITERAL
+ID
+GETPROPERTY
+QUESTION
+AT
+WS
+
+rule names:
+JSONPATH_FUNCTIONS
+VAR
+PAYLOAD
+HEADERS
+ATTRIBUTES
+REGISTRY
+SECRET
+BASE64ENCODE
+BASE64DECODE
+URLENCODE
+URLDECODE
+NOW
+TODAY
+FORMATDATE
+ISNUMBER
+ISSTRING
+ISARRAY
+ISOBJECT
+ROUND
+INTEGER
+FLOAT
+STRING
+BOOLEAN
+ABS
+FLOOR
+CEIL
+SQRT
+LOG
+POW
+LENGTH
+TOUPPER
+TOLOWER
+SUBSTRING
+STARTSWITH
+ENDSWITH
+CONTAINS
+TRIM
+REPLACE
+SPLIT
+AND
+OR
+NOT
+DOUBLE_DOT
+ASTERISK
+PLUS
+MINUS
+DIV
+MODULO
+EQ
+NEQ
+GT
+LT
+GTE
+LTE
+LPAREN
+RPAREN
+LBRACKET
+RBRACKET
+DOT
+COMMA
+COLON
+QUOTE
+BOOLEAN_LITERAL
+NUMBER
+STRING_LITERAL
+ESC
+UNICODE_ESC
+OCTAL_ESC
+HEX_DIGIT
+ID
+GETPROPERTY
+QUESTION
+AT
+WS
+
+channel names:
+DEFAULT_TOKEN_CHANNEL
+HIDDEN
+
+mode names:
+DEFAULT_MODE
+
+atn:
+[4, 0, 70, 663, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2, 10, 7, 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15, 7, 15, 2, 16, 7, 16, 2, 17, 7, 17, 2, 18, 7, 18, 2, 19, 7, 19, 2, 20, 7, 20, 2, 21, 7, 21, 2, 22, 7, 22, 2, 23, 7, 23, 2, 24, 7, 24, 2, 25, 7, 25, 2, 26, 7, 26, 2, 27, 7, 27, 2, 28, 7, 28, 2, 29, 7, 29, 2, 30, 7, 30, 2, 31, 7, 31, 2, 32, 7, 32, 2, 33, 7, 33, 2, 34, 7, 34, 2, 35, 7, 35, 2, 36, 7, 36, 2, 37, 7, 37, 2, 38, 7, 38, 2, 39, 7, 39, 2, 40, 7, 40, 2, 41, 7, 41, 2, 42, 7, 42, 2, 43, 7, 43, 2, 44, 7, 44, 2, 45, 7, 45, 2, 46, 7, 46, 2, 47, 7, 47, 2, 48, 7, 48, 2, 49, 7, 49, 2, 50, 7, 50, 2, 51, 7, 51, 2, 52, 7, 52, 2, 53, 7, 53, 2, 54, 7, 54, 2, 55, 7, 55, 2, 56, 7, 56, 2, 57, 7, 57, 2, 58, 7, 58, 2, 59, 7, 59, 2, 60, 7, 60, 2, 61, 7, 61, 2, 62, 7, 62, 2, 63, 7, 63, 2, 64, 7, 64, 2, 65, 7, 65, 2, 66, 7, 66, 2, 67, 7, 67, 2, 68, 7, 68, 2, 69, 7, 69, 2, 70, 7, 70, 2, 71, 7, 71, 2, 72, 7, 72, 2, 73, 7, 73, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 3, 0, 204, 8, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 3, 2, 218, 8, 2, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 5, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 8, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 9, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 11, 1, 11, 1, 11, 1, 11, 1, 12, 1, 12, 1, 12, 1, 12, 1, 12, 1, 12, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 15, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 16, 1, 17, 1, 17, 1, 17, 1, 17, 1, 17, 1, 17, 1, 17, 1, 17, 1, 17, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 19, 1, 19, 1, 19, 1, 19, 1, 19, 1, 19, 1, 19, 1, 19, 1, 20, 1, 20, 1, 20, 1, 20, 1, 20, 1, 20, 1, 21, 1, 21, 1, 21, 1, 21, 1, 21, 1, 21, 1, 21, 1, 22, 1, 22, 1, 22, 1, 22, 1, 22, 1, 22, 1, 22, 1, 22, 1, 23, 1, 23, 1, 23, 1, 23, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 24, 1, 25, 1, 25, 1, 25, 1, 25, 1, 25, 1, 26, 1, 26, 1, 26, 1, 26, 1, 26, 1, 27, 1, 27, 1, 27, 1, 27, 1, 28, 1, 28, 1, 28, 1, 28, 1, 29, 1, 29, 1, 29, 1, 29, 1, 29, 1, 29, 1, 29, 1, 30, 1, 30, 1, 30, 1, 30, 1, 30, 1, 30, 1, 30, 1, 30, 1, 31, 1, 31, 1, 31, 1, 31, 1, 31, 1, 31, 1, 31, 1, 31, 1, 32, 1, 32, 1, 32, 1, 32, 1, 32, 1, 32, 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1, 0, 0, 0, 545, 546, 5, 60, 0, 0, 546, 547, 5, 61, 0, 0, 547, 108, 1, 0, 0, 0, 548, 549, 5, 40, 0, 0, 549, 110, 1, 0, 0, 0, 550, 551, 5, 41, 0, 0, 551, 112, 1, 0, 0, 0, 552, 553, 5, 91, 0, 0, 553, 114, 1, 0, 0, 0, 554, 555, 5, 93, 0, 0, 555, 116, 1, 0, 0, 0, 556, 557, 5, 46, 0, 0, 557, 118, 1, 0, 0, 0, 558, 559, 5, 44, 0, 0, 559, 120, 1, 0, 0, 0, 560, 561, 5, 58, 0, 0, 561, 122, 1, 0, 0, 0, 562, 563, 7, 0, 0, 0, 563, 124, 1, 0, 0, 0, 564, 565, 5, 116, 0, 0, 565, 566, 5, 114, 0, 0, 566, 567, 5, 117, 0, 0, 567, 574, 5, 101, 0, 0, 568, 569, 5, 102, 0, 0, 569, 570, 5, 97, 0, 0, 570, 571, 5, 108, 0, 0, 571, 572, 5, 115, 0, 0, 572, 574, 5, 101, 0, 0, 573, 564, 1, 0, 0, 0, 573, 568, 1, 0, 0, 0, 574, 126, 1, 0, 0, 0, 575, 577, 5, 45, 0, 0, 576, 575, 1, 0, 0, 0, 576, 577, 1, 0, 0, 0, 577, 579, 1, 0, 0, 0, 578, 580, 7, 1, 0, 0, 579, 578, 1, 0, 0, 0, 580, 581, 1, 0, 0, 0, 581, 579, 1, 0, 0, 0, 581, 582, 1, 0, 0, 0, 582, 589, 1, 0, 0, 0, 583, 585, 5, 46, 0, 0, 584, 586, 7, 1, 0, 0, 585, 584, 1, 0, 0, 0, 586, 587, 1, 0, 0, 0, 587, 585, 1, 0, 0, 0, 587, 588, 1, 0, 0, 0, 588, 590, 1, 0, 0, 0, 589, 583, 1, 0, 0, 0, 589, 590, 1, 0, 0, 0, 590, 128, 1, 0, 0, 0, 591, 596, 5, 34, 0, 0, 592, 595, 3, 131, 65, 0, 593, 595, 8, 2, 0, 0, 594, 592, 1, 0, 0, 0, 594, 593, 1, 0, 0, 0, 595, 598, 1, 0, 0, 0, 596, 594, 1, 0, 0, 0, 596, 597, 1, 0, 0, 0, 597, 599, 1, 0, 0, 0, 598, 596, 1, 0, 0, 0, 599, 610, 5, 34, 0, 0, 600, 605, 5, 39, 0, 0, 601, 604, 3, 131, 65, 0, 602, 604, 8, 3, 0, 0, 603, 601, 1, 0, 0, 0, 603, 602, 1, 0, 0, 0, 604, 607, 1, 0, 0, 0, 605, 603, 1, 0, 0, 0, 605, 606, 1, 0, 0, 0, 606, 608, 1, 0, 0, 0, 607, 605, 1, 0, 0, 0, 608, 610, 5, 39, 0, 0, 609, 591, 1, 0, 0, 0, 609, 600, 1, 0, 0, 0, 610, 130, 1, 0, 0, 0, 611, 612, 5, 92, 0, 0, 612, 616, 7, 4, 0, 0, 613, 616, 3, 133, 66, 0, 614, 616, 3, 135, 67, 0, 615, 611, 1, 0, 0, 0, 615, 613, 1, 0, 0, 0, 615, 614, 1, 0, 0, 0, 616, 132, 1, 0, 0, 0, 617, 618, 5, 92, 0, 0, 618, 619, 5, 117, 0, 0, 619, 620, 3, 137, 68, 0, 620, 621, 3, 137, 68, 0, 621, 622, 3, 137, 68, 0, 622, 623, 3, 137, 68, 0, 623, 134, 1, 0, 0, 0, 624, 626, 5, 92, 0, 0, 625, 627, 7, 5, 0, 0, 626, 625, 1, 0, 0, 0, 626, 627, 1, 0, 0, 0, 627, 628, 1, 0, 0, 0, 628, 629, 7, 6, 0, 0, 629, 630, 7, 6, 0, 0, 630, 136, 1, 0, 0, 0, 631, 632, 7, 7, 0, 0, 632, 138, 1, 0, 0, 0, 633, 637, 7, 8, 0, 0, 634, 636, 7, 9, 0, 0, 635, 634, 1, 0, 0, 0, 636, 639, 1, 0, 0, 0, 637, 635, 1, 0, 0, 0, 637, 638, 1, 0, 0, 0, 638, 140, 1, 0, 0, 0, 639, 637, 1, 0, 0, 0, 640, 641, 5, 103, 0, 0, 641, 642, 5, 101, 0, 0, 642, 643, 5, 116, 0, 0, 643, 644, 5, 80, 0, 0, 644, 645, 5, 114, 0, 0, 645, 646, 5, 111, 0, 0, 646, 647, 5, 112, 0, 0, 647, 648, 5, 101, 0, 0, 648, 649, 5, 114, 0, 0, 649, 650, 5, 116, 0, 0, 650, 651, 5, 121, 0, 0, 651, 142, 1, 0, 0, 0, 652, 653, 5, 63, 0, 0, 653, 144, 1, 0, 0, 0, 654, 655, 5, 64, 0, 0, 655, 146, 1, 0, 0, 0, 656, 658, 7, 10, 0, 0, 657, 656, 1, 0, 0, 0, 658, 659, 1, 0, 0, 0, 659, 657, 1, 0, 0, 0, 659, 660, 1, 0, 0, 0, 660, 661, 1, 0, 0, 0, 661, 662, 6, 73, 0, 0, 662, 148, 1, 0, 0, 0, 20, 0, 203, 217, 505, 511, 517, 573, 576, 581, 587, 589, 594, 596, 603, 605, 609, 615, 626, 637, 659, 1, 6, 0, 0]
\ No newline at end of file
diff --git a/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/gen/ExpressionLexer.java b/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/gen/ExpressionLexer.java
new file mode 100644
index 0000000000..cacaa9cf81
--- /dev/null
+++ b/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/gen/ExpressionLexer.java
@@ -0,0 +1,554 @@
+// Generated from /Users/lahirumadushanka/Documents/repo/wso2-synapse/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/ExpressionLexer.g4 by ANTLR 4.13.2
+import org.antlr.v4.runtime.Lexer;
+import org.antlr.v4.runtime.CharStream;
+import org.antlr.v4.runtime.Token;
+import org.antlr.v4.runtime.TokenStream;
+import org.antlr.v4.runtime.*;
+import org.antlr.v4.runtime.atn.*;
+import org.antlr.v4.runtime.dfa.DFA;
+import org.antlr.v4.runtime.misc.*;
+
+@SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast", "CheckReturnValue", "this-escape"})
+public class ExpressionLexer extends Lexer {
+ static { RuntimeMetaData.checkVersion("4.13.2", RuntimeMetaData.VERSION); }
+
+ protected static final DFA[] _decisionToDFA;
+ protected static final PredictionContextCache _sharedContextCache =
+ new PredictionContextCache();
+ public static final int
+ JSONPATH_FUNCTIONS=1, VAR=2, PAYLOAD=3, HEADERS=4, ATTRIBUTES=5, REGISTRY=6,
+ SECRET=7, BASE64ENCODE=8, BASE64DECODE=9, URLENCODE=10, URLDECODE=11,
+ NOW=12, TODAY=13, FORMATDATE=14, ISNUMBER=15, ISSTRING=16, ISARRAY=17,
+ ISOBJECT=18, ROUND=19, INTEGER=20, FLOAT=21, STRING=22, BOOLEAN=23, ABS=24,
+ FLOOR=25, CEIL=26, SQRT=27, LOG=28, POW=29, LENGTH=30, TOUPPER=31, TOLOWER=32,
+ SUBSTRING=33, STARTSWITH=34, ENDSWITH=35, CONTAINS=36, TRIM=37, REPLACE=38,
+ SPLIT=39, AND=40, OR=41, NOT=42, DOUBLE_DOT=43, ASTERISK=44, PLUS=45,
+ MINUS=46, DIV=47, MODULO=48, EQ=49, NEQ=50, GT=51, LT=52, GTE=53, LTE=54,
+ LPAREN=55, RPAREN=56, LBRACKET=57, RBRACKET=58, DOT=59, COMMA=60, COLON=61,
+ QUOTE=62, BOOLEAN_LITERAL=63, NUMBER=64, STRING_LITERAL=65, ID=66, GETPROPERTY=67,
+ QUESTION=68, AT=69, WS=70;
+ public static String[] channelNames = {
+ "DEFAULT_TOKEN_CHANNEL", "HIDDEN"
+ };
+
+ public static String[] modeNames = {
+ "DEFAULT_MODE"
+ };
+
+ private static String[] makeRuleNames() {
+ return new String[] {
+ "JSONPATH_FUNCTIONS", "VAR", "PAYLOAD", "HEADERS", "ATTRIBUTES", "REGISTRY",
+ "SECRET", "BASE64ENCODE", "BASE64DECODE", "URLENCODE", "URLDECODE", "NOW",
+ "TODAY", "FORMATDATE", "ISNUMBER", "ISSTRING", "ISARRAY", "ISOBJECT",
+ "ROUND", "INTEGER", "FLOAT", "STRING", "BOOLEAN", "ABS", "FLOOR", "CEIL",
+ "SQRT", "LOG", "POW", "LENGTH", "TOUPPER", "TOLOWER", "SUBSTRING", "STARTSWITH",
+ "ENDSWITH", "CONTAINS", "TRIM", "REPLACE", "SPLIT", "AND", "OR", "NOT",
+ "DOUBLE_DOT", "ASTERISK", "PLUS", "MINUS", "DIV", "MODULO", "EQ", "NEQ",
+ "GT", "LT", "GTE", "LTE", "LPAREN", "RPAREN", "LBRACKET", "RBRACKET",
+ "DOT", "COMMA", "COLON", "QUOTE", "BOOLEAN_LITERAL", "NUMBER", "STRING_LITERAL",
+ "ESC", "UNICODE_ESC", "OCTAL_ESC", "HEX_DIGIT", "ID", "GETPROPERTY",
+ "QUESTION", "AT", "WS"
+ };
+ }
+ public static final String[] ruleNames = makeRuleNames();
+
+ private static String[] makeLiteralNames() {
+ return new String[] {
+ null, null, "'var'", null, "'headers'", "'attributes'", "'registry'",
+ "'secret'", "'base64encode'", "'base64decode'", "'urlEncode'", "'urlDecode'",
+ "'now'", "'today'", "'formatDate'", "'isNumber'", "'isString'", "'isArray'",
+ "'isObject'", "'round'", "'integer'", "'float'", "'string'", "'boolean'",
+ "'abs'", "'floor'", "'ceil'", "'sqrt'", "'log'", "'pow'", "'length'",
+ "'toUpper'", "'toLower'", "'subString'", "'startsWith'", "'endsWith'",
+ "'contains'", "'trim'", "'replace'", "'split'", null, null, null, "'..'",
+ "'*'", "'+'", "'-'", "'/'", "'%'", "'=='", "'!='", "'>'", "'<'", "'>='",
+ "'<='", "'('", "')'", "'['", "']'", "'.'", "','", "':'", null, null,
+ null, null, null, "'getProperty'", "'?'", "'@'"
+ };
+ }
+ private static final String[] _LITERAL_NAMES = makeLiteralNames();
+ private static String[] makeSymbolicNames() {
+ return new String[] {
+ null, "JSONPATH_FUNCTIONS", "VAR", "PAYLOAD", "HEADERS", "ATTRIBUTES",
+ "REGISTRY", "SECRET", "BASE64ENCODE", "BASE64DECODE", "URLENCODE", "URLDECODE",
+ "NOW", "TODAY", "FORMATDATE", "ISNUMBER", "ISSTRING", "ISARRAY", "ISOBJECT",
+ "ROUND", "INTEGER", "FLOAT", "STRING", "BOOLEAN", "ABS", "FLOOR", "CEIL",
+ "SQRT", "LOG", "POW", "LENGTH", "TOUPPER", "TOLOWER", "SUBSTRING", "STARTSWITH",
+ "ENDSWITH", "CONTAINS", "TRIM", "REPLACE", "SPLIT", "AND", "OR", "NOT",
+ "DOUBLE_DOT", "ASTERISK", "PLUS", "MINUS", "DIV", "MODULO", "EQ", "NEQ",
+ "GT", "LT", "GTE", "LTE", "LPAREN", "RPAREN", "LBRACKET", "RBRACKET",
+ "DOT", "COMMA", "COLON", "QUOTE", "BOOLEAN_LITERAL", "NUMBER", "STRING_LITERAL",
+ "ID", "GETPROPERTY", "QUESTION", "AT", "WS"
+ };
+ }
+ private static final String[] _SYMBOLIC_NAMES = makeSymbolicNames();
+ public static final Vocabulary VOCABULARY = new VocabularyImpl(_LITERAL_NAMES, _SYMBOLIC_NAMES);
+
+ /**
+ * @deprecated Use {@link #VOCABULARY} instead.
+ */
+ @Deprecated
+ public static final String[] tokenNames;
+ static {
+ tokenNames = new String[_SYMBOLIC_NAMES.length];
+ for (int i = 0; i < tokenNames.length; i++) {
+ tokenNames[i] = VOCABULARY.getLiteralName(i);
+ if (tokenNames[i] == null) {
+ tokenNames[i] = VOCABULARY.getSymbolicName(i);
+ }
+
+ if (tokenNames[i] == null) {
+ tokenNames[i] = "";
+ }
+ }
+ }
+
+ @Override
+ @Deprecated
+ public String[] getTokenNames() {
+ return tokenNames;
+ }
+
+ @Override
+
+ public Vocabulary getVocabulary() {
+ return VOCABULARY;
+ }
+
+
+ public ExpressionLexer(CharStream input) {
+ super(input);
+ _interp = new LexerATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache);
+ }
+
+ @Override
+ public String getGrammarFileName() { return "ExpressionLexer.g4"; }
+
+ @Override
+ public String[] getRuleNames() { return ruleNames; }
+
+ @Override
+ public String getSerializedATN() { return _serializedATN; }
+
+ @Override
+ public String[] getChannelNames() { return channelNames; }
+
+ @Override
+ public String[] getModeNames() { return modeNames; }
+
+ @Override
+ public ATN getATN() { return _ATN; }
+
+ public static final String _serializedATN =
+ "\u0004\u0000F\u0297\u0006\uffff\uffff\u0002\u0000\u0007\u0000\u0002\u0001"+
+ "\u0007\u0001\u0002\u0002\u0007\u0002\u0002\u0003\u0007\u0003\u0002\u0004"+
+ "\u0007\u0004\u0002\u0005\u0007\u0005\u0002\u0006\u0007\u0006\u0002\u0007"+
+ "\u0007\u0007\u0002\b\u0007\b\u0002\t\u0007\t\u0002\n\u0007\n\u0002\u000b"+
+ "\u0007\u000b\u0002\f\u0007\f\u0002\r\u0007\r\u0002\u000e\u0007\u000e\u0002"+
+ "\u000f\u0007\u000f\u0002\u0010\u0007\u0010\u0002\u0011\u0007\u0011\u0002"+
+ "\u0012\u0007\u0012\u0002\u0013\u0007\u0013\u0002\u0014\u0007\u0014\u0002"+
+ "\u0015\u0007\u0015\u0002\u0016\u0007\u0016\u0002\u0017\u0007\u0017\u0002"+
+ "\u0018\u0007\u0018\u0002\u0019\u0007\u0019\u0002\u001a\u0007\u001a\u0002"+
+ "\u001b\u0007\u001b\u0002\u001c\u0007\u001c\u0002\u001d\u0007\u001d\u0002"+
+ "\u001e\u0007\u001e\u0002\u001f\u0007\u001f\u0002 \u0007 \u0002!\u0007"+
+ "!\u0002\"\u0007\"\u0002#\u0007#\u0002$\u0007$\u0002%\u0007%\u0002&\u0007"+
+ "&\u0002\'\u0007\'\u0002(\u0007(\u0002)\u0007)\u0002*\u0007*\u0002+\u0007"+
+ "+\u0002,\u0007,\u0002-\u0007-\u0002.\u0007.\u0002/\u0007/\u00020\u0007"+
+ "0\u00021\u00071\u00022\u00072\u00023\u00073\u00024\u00074\u00025\u0007"+
+ "5\u00026\u00076\u00027\u00077\u00028\u00078\u00029\u00079\u0002:\u0007"+
+ ":\u0002;\u0007;\u0002<\u0007<\u0002=\u0007=\u0002>\u0007>\u0002?\u0007"+
+ "?\u0002@\u0007@\u0002A\u0007A\u0002B\u0007B\u0002C\u0007C\u0002D\u0007"+
+ "D\u0002E\u0007E\u0002F\u0007F\u0002G\u0007G\u0002H\u0007H\u0002I\u0007"+
+ "I\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000"+
+ "\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000"+
+ "\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000"+
+ "\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000"+
+ "\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000"+
+ "\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000"+
+ "\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000"+
+ "\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000"+
+ "\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000"+
+ "\u0003\u0000\u00cc\b\u0000\u0001\u0001\u0001\u0001\u0001\u0001\u0001\u0001"+
+ "\u0001\u0002\u0001\u0002\u0001\u0002\u0001\u0002\u0001\u0002\u0001\u0002"+
+ "\u0001\u0002\u0001\u0002\u0003\u0002\u00da\b\u0002\u0001\u0003\u0001\u0003"+
+ "\u0001\u0003\u0001\u0003\u0001\u0003\u0001\u0003\u0001\u0003\u0001\u0003"+
+ "\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0004"+
+ "\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0005"+
+ "\u0001\u0005\u0001\u0005\u0001\u0005\u0001\u0005\u0001\u0005\u0001\u0005"+
+ "\u0001\u0005\u0001\u0005\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
+ "\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0007\u0001\u0007\u0001\u0007"+
+ "\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
+ "\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\b\u0001\b\u0001"+
+ "\b\u0001\b\u0001\b\u0001\b\u0001\b\u0001\b\u0001\b\u0001\b\u0001\b\u0001"+
+ "\b\u0001\b\u0001\t\u0001\t\u0001\t\u0001\t\u0001\t\u0001\t\u0001\t\u0001"+
+ "\t\u0001\t\u0001\t\u0001\n\u0001\n\u0001\n\u0001\n\u0001\n\u0001\n\u0001"+
+ "\n\u0001\n\u0001\n\u0001\n\u0001\u000b\u0001\u000b\u0001\u000b\u0001\u000b"+
+ "\u0001\f\u0001\f\u0001\f\u0001\f\u0001\f\u0001\f\u0001\r\u0001\r\u0001"+
+ "\r\u0001\r\u0001\r\u0001\r\u0001\r\u0001\r\u0001\r\u0001\r\u0001\r\u0001"+
+ "\u000e\u0001\u000e\u0001\u000e\u0001\u000e\u0001\u000e\u0001\u000e\u0001"+
+ "\u000e\u0001\u000e\u0001\u000e\u0001\u000f\u0001\u000f\u0001\u000f\u0001"+
+ "\u000f\u0001\u000f\u0001\u000f\u0001\u000f\u0001\u000f\u0001\u000f\u0001"+
+ "\u0010\u0001\u0010\u0001\u0010\u0001\u0010\u0001\u0010\u0001\u0010\u0001"+
+ "\u0010\u0001\u0010\u0001\u0011\u0001\u0011\u0001\u0011\u0001\u0011\u0001"+
+ "\u0011\u0001\u0011\u0001\u0011\u0001\u0011\u0001\u0011\u0001\u0012\u0001"+
+ "\u0012\u0001\u0012\u0001\u0012\u0001\u0012\u0001\u0012\u0001\u0013\u0001"+
+ "\u0013\u0001\u0013\u0001\u0013\u0001\u0013\u0001\u0013\u0001\u0013\u0001"+
+ "\u0013\u0001\u0014\u0001\u0014\u0001\u0014\u0001\u0014\u0001\u0014\u0001"+
+ "\u0014\u0001\u0015\u0001\u0015\u0001\u0015\u0001\u0015\u0001\u0015\u0001"+
+ "\u0015\u0001\u0015\u0001\u0016\u0001\u0016\u0001\u0016\u0001\u0016\u0001"+
+ "\u0016\u0001\u0016\u0001\u0016\u0001\u0016\u0001\u0017\u0001\u0017\u0001"+
+ "\u0017\u0001\u0017\u0001\u0018\u0001\u0018\u0001\u0018\u0001\u0018\u0001"+
+ "\u0018\u0001\u0018\u0001\u0019\u0001\u0019\u0001\u0019\u0001\u0019\u0001"+
+ "\u0019\u0001\u001a\u0001\u001a\u0001\u001a\u0001\u001a\u0001\u001a\u0001"+
+ "\u001b\u0001\u001b\u0001\u001b\u0001\u001b\u0001\u001c\u0001\u001c\u0001"+
+ "\u001c\u0001\u001c\u0001\u001d\u0001\u001d\u0001\u001d\u0001\u001d\u0001"+
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+ "\u0148\u0149\u0005r\u0000\u0000\u0149\u001e\u0001\u0000\u0000\u0000\u014a"+
+ "\u014b\u0005i\u0000\u0000\u014b\u014c\u0005s\u0000\u0000\u014c\u014d\u0005"+
+ "S\u0000\u0000\u014d\u014e\u0005t\u0000\u0000\u014e\u014f\u0005r\u0000"+
+ "\u0000\u014f\u0150\u0005i\u0000\u0000\u0150\u0151\u0005n\u0000\u0000\u0151"+
+ "\u0152\u0005g\u0000\u0000\u0152 \u0001\u0000\u0000\u0000\u0153\u0154\u0005"+
+ "i\u0000\u0000\u0154\u0155\u0005s\u0000\u0000\u0155\u0156\u0005A\u0000"+
+ "\u0000\u0156\u0157\u0005r\u0000\u0000\u0157\u0158\u0005r\u0000\u0000\u0158"+
+ "\u0159\u0005a\u0000\u0000\u0159\u015a\u0005y\u0000\u0000\u015a\"\u0001"+
+ "\u0000\u0000\u0000\u015b\u015c\u0005i\u0000\u0000\u015c\u015d\u0005s\u0000"+
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+ "\u0160\u0005j\u0000\u0000\u0160\u0161\u0005e\u0000\u0000\u0161\u0162\u0005"+
+ "c\u0000\u0000\u0162\u0163\u0005t\u0000\u0000\u0163$\u0001\u0000\u0000"+
+ "\u0000\u0164\u0165\u0005r\u0000\u0000\u0165\u0166\u0005o\u0000\u0000\u0166"+
+ "\u0167\u0005u\u0000\u0000\u0167\u0168\u0005n\u0000\u0000\u0168\u0169\u0005"+
+ "d\u0000\u0000\u0169&\u0001\u0000\u0000\u0000\u016a\u016b\u0005i\u0000"+
+ "\u0000\u016b\u016c\u0005n\u0000\u0000\u016c\u016d\u0005t\u0000\u0000\u016d"+
+ "\u016e\u0005e\u0000\u0000\u016e\u016f\u0005g\u0000\u0000\u016f\u0170\u0005"+
+ "e\u0000\u0000\u0170\u0171\u0005r\u0000\u0000\u0171(\u0001\u0000\u0000"+
+ "\u0000\u0172\u0173\u0005f\u0000\u0000\u0173\u0174\u0005l\u0000\u0000\u0174"+
+ "\u0175\u0005o\u0000\u0000\u0175\u0176\u0005a\u0000\u0000\u0176\u0177\u0005"+
+ "t\u0000\u0000\u0177*\u0001\u0000\u0000\u0000\u0178\u0179\u0005s\u0000"+
+ "\u0000\u0179\u017a\u0005t\u0000\u0000\u017a\u017b\u0005r\u0000\u0000\u017b"+
+ "\u017c\u0005i\u0000\u0000\u017c\u017d\u0005n\u0000\u0000\u017d\u017e\u0005"+
+ "g\u0000\u0000\u017e,\u0001\u0000\u0000\u0000\u017f\u0180\u0005b\u0000"+
+ "\u0000\u0180\u0181\u0005o\u0000\u0000\u0181\u0182\u0005o\u0000\u0000\u0182"+
+ "\u0183\u0005l\u0000\u0000\u0183\u0184\u0005e\u0000\u0000\u0184\u0185\u0005"+
+ "a\u0000\u0000\u0185\u0186\u0005n\u0000\u0000\u0186.\u0001\u0000\u0000"+
+ "\u0000\u0187\u0188\u0005a\u0000\u0000\u0188\u0189\u0005b\u0000\u0000\u0189"+
+ "\u018a\u0005s\u0000\u0000\u018a0\u0001\u0000\u0000\u0000\u018b\u018c\u0005"+
+ "f\u0000\u0000\u018c\u018d\u0005l\u0000\u0000\u018d\u018e\u0005o\u0000"+
+ "\u0000\u018e\u018f\u0005o\u0000\u0000\u018f\u0190\u0005r\u0000\u0000\u0190"+
+ "2\u0001\u0000\u0000\u0000\u0191\u0192\u0005c\u0000\u0000\u0192\u0193\u0005"+
+ "e\u0000\u0000\u0193\u0194\u0005i\u0000\u0000\u0194\u0195\u0005l\u0000"+
+ "\u0000\u01954\u0001\u0000\u0000\u0000\u0196\u0197\u0005s\u0000\u0000\u0197"+
+ "\u0198\u0005q\u0000\u0000\u0198\u0199\u0005r\u0000\u0000\u0199\u019a\u0005"+
+ "t\u0000\u0000\u019a6\u0001\u0000\u0000\u0000\u019b\u019c\u0005l\u0000"+
+ "\u0000\u019c\u019d\u0005o\u0000\u0000\u019d\u019e\u0005g\u0000\u0000\u019e"+
+ "8\u0001\u0000\u0000\u0000\u019f\u01a0\u0005p\u0000\u0000\u01a0\u01a1\u0005"+
+ "o\u0000\u0000\u01a1\u01a2\u0005w\u0000\u0000\u01a2:\u0001\u0000\u0000"+
+ "\u0000\u01a3\u01a4\u0005l\u0000\u0000\u01a4\u01a5\u0005e\u0000\u0000\u01a5"+
+ "\u01a6\u0005n\u0000\u0000\u01a6\u01a7\u0005g\u0000\u0000\u01a7\u01a8\u0005"+
+ "t\u0000\u0000\u01a8\u01a9\u0005h\u0000\u0000\u01a9<\u0001\u0000\u0000"+
+ "\u0000\u01aa\u01ab\u0005t\u0000\u0000\u01ab\u01ac\u0005o\u0000\u0000\u01ac"+
+ "\u01ad\u0005U\u0000\u0000\u01ad\u01ae\u0005p\u0000\u0000\u01ae\u01af\u0005"+
+ "p\u0000\u0000\u01af\u01b0\u0005e\u0000\u0000\u01b0\u01b1\u0005r\u0000"+
+ "\u0000\u01b1>\u0001\u0000\u0000\u0000\u01b2\u01b3\u0005t\u0000\u0000\u01b3"+
+ "\u01b4\u0005o\u0000\u0000\u01b4\u01b5\u0005L\u0000\u0000\u01b5\u01b6\u0005"+
+ "o\u0000\u0000\u01b6\u01b7\u0005w\u0000\u0000\u01b7\u01b8\u0005e\u0000"+
+ "\u0000\u01b8\u01b9\u0005r\u0000\u0000\u01b9@\u0001\u0000\u0000\u0000\u01ba"+
+ "\u01bb\u0005s\u0000\u0000\u01bb\u01bc\u0005u\u0000\u0000\u01bc\u01bd\u0005"+
+ "b\u0000\u0000\u01bd\u01be\u0005S\u0000\u0000\u01be\u01bf\u0005t\u0000"+
+ "\u0000\u01bf\u01c0\u0005r\u0000\u0000\u01c0\u01c1\u0005i\u0000\u0000\u01c1"+
+ "\u01c2\u0005n\u0000\u0000\u01c2\u01c3\u0005g\u0000\u0000\u01c3B\u0001"+
+ "\u0000\u0000\u0000\u01c4\u01c5\u0005s\u0000\u0000\u01c5\u01c6\u0005t\u0000"+
+ "\u0000\u01c6\u01c7\u0005a\u0000\u0000\u01c7\u01c8\u0005r\u0000\u0000\u01c8"+
+ "\u01c9\u0005t\u0000\u0000\u01c9\u01ca\u0005s\u0000\u0000\u01ca\u01cb\u0005"+
+ "W\u0000\u0000\u01cb\u01cc\u0005i\u0000\u0000\u01cc\u01cd\u0005t\u0000"+
+ "\u0000\u01cd\u01ce\u0005h\u0000\u0000\u01ceD\u0001\u0000\u0000\u0000\u01cf"+
+ "\u01d0\u0005e\u0000\u0000\u01d0\u01d1\u0005n\u0000\u0000\u01d1\u01d2\u0005"+
+ "d\u0000\u0000\u01d2\u01d3\u0005s\u0000\u0000\u01d3\u01d4\u0005W\u0000"+
+ "\u0000\u01d4\u01d5\u0005i\u0000\u0000\u01d5\u01d6\u0005t\u0000\u0000\u01d6"+
+ "\u01d7\u0005h\u0000\u0000\u01d7F\u0001\u0000\u0000\u0000\u01d8\u01d9\u0005"+
+ "c\u0000\u0000\u01d9\u01da\u0005o\u0000\u0000\u01da\u01db\u0005n\u0000"+
+ "\u0000\u01db\u01dc\u0005t\u0000\u0000\u01dc\u01dd\u0005a\u0000\u0000\u01dd"+
+ "\u01de\u0005i\u0000\u0000\u01de\u01df\u0005n\u0000\u0000\u01df\u01e0\u0005"+
+ "s\u0000\u0000\u01e0H\u0001\u0000\u0000\u0000\u01e1\u01e2\u0005t\u0000"+
+ "\u0000\u01e2\u01e3\u0005r\u0000\u0000\u01e3\u01e4\u0005i\u0000\u0000\u01e4"+
+ "\u01e5\u0005m\u0000\u0000\u01e5J\u0001\u0000\u0000\u0000\u01e6\u01e7\u0005"+
+ "r\u0000\u0000\u01e7\u01e8\u0005e\u0000\u0000\u01e8\u01e9\u0005p\u0000"+
+ "\u0000\u01e9\u01ea\u0005l\u0000\u0000\u01ea\u01eb\u0005a\u0000\u0000\u01eb"+
+ "\u01ec\u0005c\u0000\u0000\u01ec\u01ed\u0005e\u0000\u0000\u01edL\u0001"+
+ "\u0000\u0000\u0000\u01ee\u01ef\u0005s\u0000\u0000\u01ef\u01f0\u0005p\u0000"+
+ "\u0000\u01f0\u01f1\u0005l\u0000\u0000\u01f1\u01f2\u0005i\u0000\u0000\u01f2"+
+ "\u01f3\u0005t\u0000\u0000\u01f3N\u0001\u0000\u0000\u0000\u01f4\u01f5\u0005"+
+ "a\u0000\u0000\u01f5\u01f6\u0005n\u0000\u0000\u01f6\u01fa\u0005d\u0000"+
+ "\u0000\u01f7\u01f8\u0005&\u0000\u0000\u01f8\u01fa\u0005&\u0000\u0000\u01f9"+
+ "\u01f4\u0001\u0000\u0000\u0000\u01f9\u01f7\u0001\u0000\u0000\u0000\u01fa"+
+ "P\u0001\u0000\u0000\u0000\u01fb\u01fc\u0005o\u0000\u0000\u01fc\u0200\u0005"+
+ "r\u0000\u0000\u01fd\u01fe\u0005|\u0000\u0000\u01fe\u0200\u0005|\u0000"+
+ "\u0000\u01ff\u01fb\u0001\u0000\u0000\u0000\u01ff\u01fd\u0001\u0000\u0000"+
+ "\u0000\u0200R\u0001\u0000\u0000\u0000\u0201\u0202\u0005n\u0000\u0000\u0202"+
+ "\u0203\u0005o\u0000\u0000\u0203\u0206\u0005t\u0000\u0000\u0204\u0206\u0005"+
+ "!\u0000\u0000\u0205\u0201\u0001\u0000\u0000\u0000\u0205\u0204\u0001\u0000"+
+ "\u0000\u0000\u0206T\u0001\u0000\u0000\u0000\u0207\u0208\u0005.\u0000\u0000"+
+ "\u0208\u0209\u0005.\u0000\u0000\u0209V\u0001\u0000\u0000\u0000\u020a\u020b"+
+ "\u0005*\u0000\u0000\u020bX\u0001\u0000\u0000\u0000\u020c\u020d\u0005+"+
+ "\u0000\u0000\u020dZ\u0001\u0000\u0000\u0000\u020e\u020f\u0005-\u0000\u0000"+
+ "\u020f\\\u0001\u0000\u0000\u0000\u0210\u0211\u0005/\u0000\u0000\u0211"+
+ "^\u0001\u0000\u0000\u0000\u0212\u0213\u0005%\u0000\u0000\u0213`\u0001"+
+ "\u0000\u0000\u0000\u0214\u0215\u0005=\u0000\u0000\u0215\u0216\u0005=\u0000"+
+ "\u0000\u0216b\u0001\u0000\u0000\u0000\u0217\u0218\u0005!\u0000\u0000\u0218"+
+ "\u0219\u0005=\u0000\u0000\u0219d\u0001\u0000\u0000\u0000\u021a\u021b\u0005"+
+ ">\u0000\u0000\u021bf\u0001\u0000\u0000\u0000\u021c\u021d\u0005<\u0000"+
+ "\u0000\u021dh\u0001\u0000\u0000\u0000\u021e\u021f\u0005>\u0000\u0000\u021f"+
+ "\u0220\u0005=\u0000\u0000\u0220j\u0001\u0000\u0000\u0000\u0221\u0222\u0005"+
+ "<\u0000\u0000\u0222\u0223\u0005=\u0000\u0000\u0223l\u0001\u0000\u0000"+
+ "\u0000\u0224\u0225\u0005(\u0000\u0000\u0225n\u0001\u0000\u0000\u0000\u0226"+
+ "\u0227\u0005)\u0000\u0000\u0227p\u0001\u0000\u0000\u0000\u0228\u0229\u0005"+
+ "[\u0000\u0000\u0229r\u0001\u0000\u0000\u0000\u022a\u022b\u0005]\u0000"+
+ "\u0000\u022bt\u0001\u0000\u0000\u0000\u022c\u022d\u0005.\u0000\u0000\u022d"+
+ "v\u0001\u0000\u0000\u0000\u022e\u022f\u0005,\u0000\u0000\u022fx\u0001"+
+ "\u0000\u0000\u0000\u0230\u0231\u0005:\u0000\u0000\u0231z\u0001\u0000\u0000"+
+ "\u0000\u0232\u0233\u0007\u0000\u0000\u0000\u0233|\u0001\u0000\u0000\u0000"+
+ "\u0234\u0235\u0005t\u0000\u0000\u0235\u0236\u0005r\u0000\u0000\u0236\u0237"+
+ "\u0005u\u0000\u0000\u0237\u023e\u0005e\u0000\u0000\u0238\u0239\u0005f"+
+ "\u0000\u0000\u0239\u023a\u0005a\u0000\u0000\u023a\u023b\u0005l\u0000\u0000"+
+ "\u023b\u023c\u0005s\u0000\u0000\u023c\u023e\u0005e\u0000\u0000\u023d\u0234"+
+ "\u0001\u0000\u0000\u0000\u023d\u0238\u0001\u0000\u0000\u0000\u023e~\u0001"+
+ "\u0000\u0000\u0000\u023f\u0241\u0005-\u0000\u0000\u0240\u023f\u0001\u0000"+
+ "\u0000\u0000\u0240\u0241\u0001\u0000\u0000\u0000\u0241\u0243\u0001\u0000"+
+ "\u0000\u0000\u0242\u0244\u0007\u0001\u0000\u0000\u0243\u0242\u0001\u0000"+
+ "\u0000\u0000\u0244\u0245\u0001\u0000\u0000\u0000\u0245\u0243\u0001\u0000"+
+ "\u0000\u0000\u0245\u0246\u0001\u0000\u0000\u0000\u0246\u024d\u0001\u0000"+
+ "\u0000\u0000\u0247\u0249\u0005.\u0000\u0000\u0248\u024a\u0007\u0001\u0000"+
+ "\u0000\u0249\u0248\u0001\u0000\u0000\u0000\u024a\u024b\u0001\u0000\u0000"+
+ "\u0000\u024b\u0249\u0001\u0000\u0000\u0000\u024b\u024c\u0001\u0000\u0000"+
+ "\u0000\u024c\u024e\u0001\u0000\u0000\u0000\u024d\u0247\u0001\u0000\u0000"+
+ "\u0000\u024d\u024e\u0001\u0000\u0000\u0000\u024e\u0080\u0001\u0000\u0000"+
+ "\u0000\u024f\u0254\u0005\"\u0000\u0000\u0250\u0253\u0003\u0083A\u0000"+
+ "\u0251\u0253\b\u0002\u0000\u0000\u0252\u0250\u0001\u0000\u0000\u0000\u0252"+
+ "\u0251\u0001\u0000\u0000\u0000\u0253\u0256\u0001\u0000\u0000\u0000\u0254"+
+ "\u0252\u0001\u0000\u0000\u0000\u0254\u0255\u0001\u0000\u0000\u0000\u0255"+
+ "\u0257\u0001\u0000\u0000\u0000\u0256\u0254\u0001\u0000\u0000\u0000\u0257"+
+ "\u0262\u0005\"\u0000\u0000\u0258\u025d\u0005\'\u0000\u0000\u0259\u025c"+
+ "\u0003\u0083A\u0000\u025a\u025c\b\u0003\u0000\u0000\u025b\u0259\u0001"+
+ "\u0000\u0000\u0000\u025b\u025a\u0001\u0000\u0000\u0000\u025c\u025f\u0001"+
+ "\u0000\u0000\u0000\u025d\u025b\u0001\u0000\u0000\u0000\u025d\u025e\u0001"+
+ "\u0000\u0000\u0000\u025e\u0260\u0001\u0000\u0000\u0000\u025f\u025d\u0001"+
+ "\u0000\u0000\u0000\u0260\u0262\u0005\'\u0000\u0000\u0261\u024f\u0001\u0000"+
+ "\u0000\u0000\u0261\u0258\u0001\u0000\u0000\u0000\u0262\u0082\u0001\u0000"+
+ "\u0000\u0000\u0263\u0264\u0005\\\u0000\u0000\u0264\u0268\u0007\u0004\u0000"+
+ "\u0000\u0265\u0268\u0003\u0085B\u0000\u0266\u0268\u0003\u0087C\u0000\u0267"+
+ "\u0263\u0001\u0000\u0000\u0000\u0267\u0265\u0001\u0000\u0000\u0000\u0267"+
+ "\u0266\u0001\u0000\u0000\u0000\u0268\u0084\u0001\u0000\u0000\u0000\u0269"+
+ "\u026a\u0005\\\u0000\u0000\u026a\u026b\u0005u\u0000\u0000\u026b\u026c"+
+ "\u0003\u0089D\u0000\u026c\u026d\u0003\u0089D\u0000\u026d\u026e\u0003\u0089"+
+ "D\u0000\u026e\u026f\u0003\u0089D\u0000\u026f\u0086\u0001\u0000\u0000\u0000"+
+ "\u0270\u0272\u0005\\\u0000\u0000\u0271\u0273\u0007\u0005\u0000\u0000\u0272"+
+ "\u0271\u0001\u0000\u0000\u0000\u0272\u0273\u0001\u0000\u0000\u0000\u0273"+
+ "\u0274\u0001\u0000\u0000\u0000\u0274\u0275\u0007\u0006\u0000\u0000\u0275"+
+ "\u0276\u0007\u0006\u0000\u0000\u0276\u0088\u0001\u0000\u0000\u0000\u0277"+
+ "\u0278\u0007\u0007\u0000\u0000\u0278\u008a\u0001\u0000\u0000\u0000\u0279"+
+ "\u027d\u0007\b\u0000\u0000\u027a\u027c\u0007\t\u0000\u0000\u027b\u027a"+
+ "\u0001\u0000\u0000\u0000\u027c\u027f\u0001\u0000\u0000\u0000\u027d\u027b"+
+ "\u0001\u0000\u0000\u0000\u027d\u027e\u0001\u0000\u0000\u0000\u027e\u008c"+
+ "\u0001\u0000\u0000\u0000\u027f\u027d\u0001\u0000\u0000\u0000\u0280\u0281"+
+ "\u0005g\u0000\u0000\u0281\u0282\u0005e\u0000\u0000\u0282\u0283\u0005t"+
+ "\u0000\u0000\u0283\u0284\u0005P\u0000\u0000\u0284\u0285\u0005r\u0000\u0000"+
+ "\u0285\u0286\u0005o\u0000\u0000\u0286\u0287\u0005p\u0000\u0000\u0287\u0288"+
+ "\u0005e\u0000\u0000\u0288\u0289\u0005r\u0000\u0000\u0289\u028a\u0005t"+
+ "\u0000\u0000\u028a\u028b\u0005y\u0000\u0000\u028b\u008e\u0001\u0000\u0000"+
+ "\u0000\u028c\u028d\u0005?\u0000\u0000\u028d\u0090\u0001\u0000\u0000\u0000"+
+ "\u028e\u028f\u0005@\u0000\u0000\u028f\u0092\u0001\u0000\u0000\u0000\u0290"+
+ "\u0292\u0007\n\u0000\u0000\u0291\u0290\u0001\u0000\u0000\u0000\u0292\u0293"+
+ "\u0001\u0000\u0000\u0000\u0293\u0291\u0001\u0000\u0000\u0000\u0293\u0294"+
+ "\u0001\u0000\u0000\u0000\u0294\u0295\u0001\u0000\u0000\u0000\u0295\u0296"+
+ "\u0006I\u0000\u0000\u0296\u0094\u0001\u0000\u0000\u0000\u0014\u0000\u00cb"+
+ "\u00d9\u01f9\u01ff\u0205\u023d\u0240\u0245\u024b\u024d\u0252\u0254\u025b"+
+ "\u025d\u0261\u0267\u0272\u027d\u0293\u0001\u0006\u0000\u0000";
+ public static final ATN _ATN =
+ new ATNDeserializer().deserialize(_serializedATN.toCharArray());
+ static {
+ _decisionToDFA = new DFA[_ATN.getNumberOfDecisions()];
+ for (int i = 0; i < _ATN.getNumberOfDecisions(); i++) {
+ _decisionToDFA[i] = new DFA(_ATN.getDecisionState(i), i);
+ }
+ }
+}
\ No newline at end of file
diff --git a/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/gen/ExpressionLexer.tokens b/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/gen/ExpressionLexer.tokens
new file mode 100644
index 0000000000..3848a35265
--- /dev/null
+++ b/modules/core/src/main/antlr4/org/apache/synapse/util/SIEL/gen/ExpressionLexer.tokens
@@ -0,0 +1,129 @@
+JSONPATH_FUNCTIONS=1
+VAR=2
+PAYLOAD=3
+HEADERS=4
+ATTRIBUTES=5
+REGISTRY=6
+SECRET=7
+BASE64ENCODE=8
+BASE64DECODE=9
+URLENCODE=10
+URLDECODE=11
+NOW=12
+TODAY=13
+FORMATDATE=14
+ISNUMBER=15
+ISSTRING=16
+ISARRAY=17
+ISOBJECT=18
+ROUND=19
+INTEGER=20
+FLOAT=21
+STRING=22
+BOOLEAN=23
+ABS=24
+FLOOR=25
+CEIL=26
+SQRT=27
+LOG=28
+POW=29
+LENGTH=30
+TOUPPER=31
+TOLOWER=32
+SUBSTRING=33
+STARTSWITH=34
+ENDSWITH=35
+CONTAINS=36
+TRIM=37
+REPLACE=38
+SPLIT=39
+AND=40
+OR=41
+NOT=42
+DOUBLE_DOT=43
+ASTERISK=44
+PLUS=45
+MINUS=46
+DIV=47
+MODULO=48
+EQ=49
+NEQ=50
+GT=51
+LT=52
+GTE=53
+LTE=54
+LPAREN=55
+RPAREN=56
+LBRACKET=57
+RBRACKET=58
+DOT=59
+COMMA=60
+COLON=61
+QUOTE=62
+BOOLEAN_LITERAL=63
+NUMBER=64
+STRING_LITERAL=65
+ID=66
+GETPROPERTY=67
+QUESTION=68
+AT=69
+WS=70
+'var'=2
+'headers'=4
+'attributes'=5
+'registry'=6
+'secret'=7
+'base64encode'=8
+'base64decode'=9
+'urlEncode'=10
+'urlDecode'=11
+'now'=12
+'today'=13
+'formatDate'=14
+'isNumber'=15
+'isString'=16
+'isArray'=17
+'isObject'=18
+'round'=19
+'integer'=20
+'float'=21
+'string'=22
+'boolean'=23
+'abs'=24
+'floor'=25
+'ceil'=26
+'sqrt'=27
+'log'=28
+'pow'=29
+'length'=30
+'toUpper'=31
+'toLower'=32
+'subString'=33
+'startsWith'=34
+'endsWith'=35
+'contains'=36
+'trim'=37
+'replace'=38
+'split'=39
+'..'=43
+'*'=44
+'+'=45
+'-'=46
+'/'=47
+'%'=48
+'=='=49
+'!='=50
+'>'=51
+'<'=52
+'>='=53
+'<='=54
+'('=55
+')'=56
+'['=57
+']'=58
+'.'=59
+','=60
+':'=61
+'getProperty'=67
+'?'=68
+'@'=69
diff --git a/modules/core/src/main/java/org/apache/synapse/SynapseConstants.java b/modules/core/src/main/java/org/apache/synapse/SynapseConstants.java
index 47647ee066..3051e3b95b 100644
--- a/modules/core/src/main/java/org/apache/synapse/SynapseConstants.java
+++ b/modules/core/src/main/java/org/apache/synapse/SynapseConstants.java
@@ -625,4 +625,58 @@ public enum ENDPOINT_TIMEOUT_TYPE { ENDPOINT_TIMEOUT, GLOBAL_TIMEOUT, HTTP_CONNE
public static final String JAEGER_SPAN_ID = "jaeger_span_id";
public static final String ANALYTICS_METADATA = "ANALYTICS_METADATA";
+
+ // Constants related to SIEL
+ public static final String AND = "and";
+ public static final String OR = "or";
+ public static final String NOT = "not";
+ public static final String TO_LOWER = "toLower";
+ public static final String TO_UPPER = "toUpper";
+ public static final String LENGTH = "length";
+ public static final String SUBSTRING = "subString";
+ public static final String STARTS_WITH = "startsWith";
+ public static final String ENDS_WITH = "endsWith";
+ public static final String CONTAINS = "contains";
+ public static final String TRIM = "trim";
+ public static final String REPLACE = "replace";
+ public static final String SPLIT = "split";
+ public static final String NOW = "now";
+ public static final String ABS = "abs";
+ public static final String CEIL = "ceil";
+ public static final String FLOOR = "floor";
+ public static final String SQRT = "sqrt";
+ public static final String LOG = "log";
+ public static final String POW = "pow";
+ public static final String B64ENCODE = "base64encode";
+ public static final String B64DECODE = "base64decode";
+ public static final String URL_ENCODE = "urlEncode";
+ public static final String URL_DECODE = "urlDecode";
+ public static final String IS_NUMBER = "isNumber";
+ public static final String IS_STRING = "isString";
+ public static final String IS_ARRAY = "isArray";
+ public static final String IS_OBJECT = "isObject";
+
+ public static final String ROUND = "round";
+ public static final String INTEGER = "integer";
+ public static final String FLOAT = "float";
+ public static final String STRING = "string";
+ public static final String BOOLEAN = "boolean";
+
+ public static final String PAYLOAD = "payload";
+ public static final String PAYLOAD_$ = "$";
+ public static final String SIEL_IDENTIFIER_START = "#[";
+ public static final String SIEL_IDENTIFIER_END = "]";
+ public static final String AXIS2 = "axis2";
+
+ public static final class SIELErrors {
+ public static final String IF_CONDITION_ERROR = "Condition is not a boolean value";
+ private static final String INVALID_ARGUMENT = "Invalid argument type provided for %s function";
+ private static final String INVALID_OPERATION = "Invalid argument type provided for %s operation";
+ public static String getInvalidArgumentMessage(String functionName) {
+ return String.format(INVALID_ARGUMENT, functionName);
+ }
+ public static String getInvalidOperationMessage(String functionName) {
+ return String.format(INVALID_OPERATION, functionName);
+ }
+ }
}
diff --git a/modules/core/src/main/java/org/apache/synapse/config/xml/PropertyMediatorFactory.java b/modules/core/src/main/java/org/apache/synapse/config/xml/PropertyMediatorFactory.java
index 5b7c45ca36..fcddb88a09 100644
--- a/modules/core/src/main/java/org/apache/synapse/config/xml/PropertyMediatorFactory.java
+++ b/modules/core/src/main/java/org/apache/synapse/config/xml/PropertyMediatorFactory.java
@@ -22,11 +22,13 @@
import org.apache.axiom.om.OMAttribute;
import org.apache.axiom.om.OMElement;
import org.apache.synapse.Mediator;
+import org.apache.synapse.SynapseConstants;
import org.apache.synapse.SynapseException;
import org.apache.synapse.mediators.Value;
import org.apache.synapse.mediators.builtin.PropertyMediator;
import org.apache.synapse.util.MediatorPropertyUtils;
import org.apache.synapse.util.xpath.SynapseJsonPath;
+import org.apache.synapse.util.xpath.SynapseSIELPath;
import org.apache.synapse.util.xpath.SynapseXPath;
import org.jaxen.JaxenException;
@@ -83,6 +85,9 @@ public Mediator createSpecificMediator(OMElement elem, Properties properties) {
String nameExpression = nameAttributeValue.substring(1, nameAttributeValue.length() - 1);
if(nameExpression.startsWith("json-eval(")) {
new SynapseJsonPath(nameExpression.substring(10, nameExpression.length() - 1));
+ } else if (nameExpression.startsWith(SynapseConstants.SIEL_IDENTIFIER_START) &&
+ nameExpression.endsWith(SynapseConstants.SIEL_IDENTIFIER_END)) {
+ new SynapseSIELPath(nameExpression.substring(2, nameExpression.length() - 1));
} else {
new SynapseXPath(nameExpression);
}
diff --git a/modules/core/src/main/java/org/apache/synapse/config/xml/SynapsePath.java b/modules/core/src/main/java/org/apache/synapse/config/xml/SynapsePath.java
index 133aaff73d..77b2c1a650 100644
--- a/modules/core/src/main/java/org/apache/synapse/config/xml/SynapsePath.java
+++ b/modules/core/src/main/java/org/apache/synapse/config/xml/SynapsePath.java
@@ -27,6 +27,7 @@ public abstract class SynapsePath extends AXIOMXPath {
public static final String X_PATH = "X_PATH";
public static final String JSON_PATH = "JSON_PATH";
+ public static final String SIEL_PATH = "SIEL_PATH";
private String pathType = null;
public DOMSynapseXPathNamespaceMap domNamespaceMap = new DOMSynapseXPathNamespaceMap();
@@ -60,9 +61,11 @@ public SynapsePath(String path, String pathType, Log log) throws JaxenException
private String inferPathType(String expression) {
if (expression.startsWith("json-eval(")) {
- return X_PATH;
- } else {
return JSON_PATH;
+ } else if(expression.startsWith("#[") && expression.endsWith("]")) {
+ return SIEL_PATH;
+ } else {
+ return X_PATH;
}
}
diff --git a/modules/core/src/main/java/org/apache/synapse/config/xml/SynapsePathFactory.java b/modules/core/src/main/java/org/apache/synapse/config/xml/SynapsePathFactory.java
index 791c7612e8..b7bdba4635 100644
--- a/modules/core/src/main/java/org/apache/synapse/config/xml/SynapsePathFactory.java
+++ b/modules/core/src/main/java/org/apache/synapse/config/xml/SynapsePathFactory.java
@@ -27,6 +27,7 @@
import org.apache.synapse.SynapseException;
import org.apache.synapse.config.SynapsePropertiesLoader;
import org.apache.synapse.util.xpath.SynapseJsonPath;
+import org.apache.synapse.util.xpath.SynapseSIELPath;
import org.apache.synapse.util.xpath.SynapseXPath;
import org.jaxen.JaxenException;
@@ -49,6 +50,9 @@ public static SynapsePath getSynapsePath(OMElement elem, QName attribName)
if(pathAttrib.getAttributeValue().startsWith("json-eval(")) {
path = new SynapseJsonPath(pathAttrib.getAttributeValue().substring(10, pathAttrib.getAttributeValue().length() - 1));
+ } else if (pathAttrib.getAttributeValue().startsWith(SynapseConstants.SIEL_IDENTIFIER_START) &&
+ pathAttrib.getAttributeValue().endsWith(SynapseConstants.SIEL_IDENTIFIER_END)) {
+ path = new SynapseSIELPath(pathAttrib.getAttributeValue().substring(2, pathAttrib.getAttributeValue().length() - 1));
} else {
try {
path = new SynapseXPath(pathAttrib.getAttributeValue());
diff --git a/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ArgumentListNode.java b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ArgumentListNode.java
new file mode 100644
index 0000000000..1656714609
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ArgumentListNode.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.synapse.util.SIEL.ast;
+
+import org.apache.synapse.util.SIEL.context.EvaluationContext;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * This class handles the list of arguments passed to a function.
+ */
+public class ArgumentListNode implements ExpressionNode {
+ private final List arguments = new ArrayList<>();
+
+ public ArgumentListNode() {
+ }
+
+ public void addArgument(ExpressionNode argument) {
+ arguments.add(argument);
+ }
+
+ public List getArguments() {
+ return arguments;
+ }
+
+ @Override
+ public ExpressionResult evaluate(EvaluationContext context) {
+ return null;
+ }
+
+}
diff --git a/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ArrayIndexNode.java b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ArrayIndexNode.java
new file mode 100644
index 0000000000..18dd60d46c
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ArrayIndexNode.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.synapse.util.SIEL.ast;
+
+import org.apache.synapse.util.SIEL.context.EvaluationContext;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * This class handles the index of an array in AST.
+ */
+public class ArrayIndexNode implements ExpressionNode {
+ private final List indexArray;
+ private final char separator;
+
+ public ArrayIndexNode(ArgumentListNode arguments, char separator) {
+ this.indexArray = arguments.getArguments();
+ this.separator = separator;
+ }
+
+ @Override
+ public ExpressionResult evaluate(EvaluationContext context) {
+ List indexList = new ArrayList<>();
+ for (ExpressionNode index : indexArray) {
+ if (index == null) {
+ indexList.add("");
+ continue;
+ }
+ ExpressionResult result = index.evaluate(context);
+ if (result != null) {
+ indexList.add(result.asString());
+ }
+ }
+ return new ExpressionResult(String.join(String.valueOf(separator), indexList));
+ }
+}
diff --git a/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/BinaryOperationNode.java b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/BinaryOperationNode.java
new file mode 100644
index 0000000000..13afc61561
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/BinaryOperationNode.java
@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.synapse.util.SIEL.ast;
+
+import org.apache.synapse.SynapseConstants;
+import org.apache.synapse.util.SIEL.context.EvaluationContext;
+import org.apache.synapse.util.SIEL.exception.EvaluationException;
+
+import java.util.function.BiFunction;
+
+/**
+ * Represents a binary operation between two nodes in AST.
+ */
+public class BinaryOperationNode implements ExpressionNode {
+
+ private final ExpressionNode left;
+ private final ExpressionNode right;
+ private final Operator operator;
+
+ public enum Operator {
+ ADD("+"),
+ SUBTRACT("-"),
+ MULTIPLY("*"),
+ DIVIDE("/"),
+ MODULO("%"),
+ EQUALS("=="),
+ NOT_EQUALS("!="),
+ LESS_THAN("<"),
+ LESS_THAN_OR_EQUAL("<="),
+ GREATER_THAN(">"),
+ GREATER_THAN_OR_EQUAL(">="),
+ AND("and"),
+ AND_SYMBOL("&&"),
+ OR("or"),
+ OR_SYMBOL("||");
+
+ private final String symbol;
+
+ Operator(String symbol) {
+ this.symbol = symbol;
+ }
+
+ public static Operator fromString(String symbol) {
+ for (Operator op : values()) {
+ if (op.symbol.equals(symbol)) {
+ return op;
+ }
+ }
+ throw new IllegalArgumentException("Unsupported operator: " + symbol);
+ }
+ }
+
+ public BinaryOperationNode(ExpressionNode left, String operator, ExpressionNode right) {
+ this.left = left;
+ this.operator = Operator.fromString(operator.trim().toLowerCase());
+ this.right = right;
+ }
+
+ @Override
+ public ExpressionResult evaluate(EvaluationContext context) {
+ ExpressionResult leftValue = left.evaluate(context);
+ ExpressionResult rightValue = right.evaluate(context);
+
+ switch (operator) {
+ case ADD:
+ return handleAddition(leftValue, rightValue);
+ case SUBTRACT:
+ case MULTIPLY:
+ case DIVIDE:
+ case MODULO:
+ return handleArithmetic(leftValue, rightValue, operator);
+ case EQUALS:
+ return handleEquality(leftValue, rightValue, String::equals);
+ case NOT_EQUALS:
+ return handleEquality(leftValue, rightValue, (a, b) -> !a.equals(b));
+ case LESS_THAN:
+ return handleComparison(leftValue, rightValue, (a, b) -> a < b);
+ case LESS_THAN_OR_EQUAL:
+ return handleComparison(leftValue, rightValue, (a, b) -> a <= b);
+ case GREATER_THAN:
+ return handleComparison(leftValue, rightValue, (a, b) -> a > b);
+ case GREATER_THAN_OR_EQUAL:
+ return handleComparison(leftValue, rightValue, (a, b) -> a >= b);
+ case AND:
+ case AND_SYMBOL:
+ case OR:
+ case OR_SYMBOL:
+ return handleLogical(leftValue, rightValue, operator);
+ default:
+ throw new EvaluationException("Unsupported operator: " + operator);
+ }
+ }
+
+ private ExpressionResult handleComparison(ExpressionResult leftValue, ExpressionResult rightValue,
+ BiFunction comparison) {
+ if ((leftValue.isDouble() || leftValue.isInteger()) && (rightValue.isDouble() || rightValue.isInteger())) {
+ return new ExpressionResult(comparison.apply(leftValue.asDouble(), rightValue.asDouble()));
+ }
+ throw new EvaluationException(SynapseConstants.SIELErrors.getInvalidOperationMessage("comparison"));
+ }
+
+ private ExpressionResult handleEquality(ExpressionResult leftValue, ExpressionResult rightValue,
+ BiFunction comparison) {
+ return new ExpressionResult(comparison.apply(leftValue.asString(), rightValue.asString()));
+ }
+
+ private ExpressionResult handleLogical(ExpressionResult leftValue, ExpressionResult rightValue, Operator operator) {
+ if (leftValue.isBoolean() && rightValue.isBoolean()) {
+ BiFunction logicOperation = operator
+ == Operator.AND || operator == Operator.AND_SYMBOL ? (a, b) -> a && b : (a, b) -> a || b;
+ return new ExpressionResult(logicOperation.apply(leftValue.asBoolean(), rightValue.asBoolean()));
+ }
+ throw new EvaluationException(SynapseConstants.SIELErrors.getInvalidOperationMessage("logical"));
+ }
+
+ private ExpressionResult handleAddition(ExpressionResult leftValue, ExpressionResult rightValue) {
+ if (leftValue.isDouble() || rightValue.isDouble()) {
+ return new ExpressionResult(leftValue.asDouble() + rightValue.asDouble());
+ } else if (leftValue.isInteger() && rightValue.isInteger()) {
+ return new ExpressionResult(leftValue.asInt() + rightValue.asInt());
+ } else if (leftValue.isString() && rightValue.isString()) {
+ return new ExpressionResult(leftValue.asString().concat(rightValue.asString()));
+ } else {
+ throw new EvaluationException(SynapseConstants.SIELErrors.getInvalidOperationMessage("+"));
+ }
+ }
+
+ private ExpressionResult handleArithmetic(ExpressionResult leftValue, ExpressionResult rightValue,
+ Operator operator) {
+ if (!leftValue.isNumeric() || !rightValue.isNumeric()) {
+ throw new EvaluationException(SynapseConstants.SIELErrors.getInvalidOperationMessage(operator.symbol));
+ }
+ boolean isInteger = leftValue.isInteger() && rightValue.isInteger();
+ switch (operator) {
+ case SUBTRACT:
+ return isInteger ? new ExpressionResult(leftValue.asInt() - rightValue.asInt()) :
+ new ExpressionResult(leftValue.asDouble() - rightValue.asDouble());
+ case MULTIPLY:
+ return isInteger ? new ExpressionResult(leftValue.asInt() * rightValue.asInt()) :
+ new ExpressionResult(leftValue.asDouble() * rightValue.asDouble());
+ case DIVIDE:
+ return isInteger ? new ExpressionResult(leftValue.asInt() / rightValue.asInt()) :
+ new ExpressionResult(leftValue.asDouble() / rightValue.asDouble());
+ case MODULO:
+ return isInteger ? new ExpressionResult(leftValue.asInt() % rightValue.asInt()) :
+ new ExpressionResult(leftValue.asDouble() % rightValue.asDouble());
+ default:
+ throw new EvaluationException("Unsupported operator: " + operator);
+ }
+ }
+}
\ No newline at end of file
diff --git a/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ConditionalExpressionNode.java b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ConditionalExpressionNode.java
new file mode 100644
index 0000000000..bcaa29d0b7
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ConditionalExpressionNode.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.synapse.util.SIEL.ast;
+
+import org.apache.synapse.SynapseConstants;
+import org.apache.synapse.util.SIEL.context.EvaluationContext;
+import org.apache.synapse.util.SIEL.exception.EvaluationException;
+
+/**
+ * Represents a conditional expression node ( a ? b : c ) in the AST.
+ */
+public class ConditionalExpressionNode implements ExpressionNode {
+
+ private final ExpressionNode condition;
+ private final ExpressionNode trueExpression;
+ private final ExpressionNode falseExpression;
+
+ public ConditionalExpressionNode(ExpressionNode condition, ExpressionNode trueExpression,
+ ExpressionNode falseExpression) {
+ this.condition = condition;
+ this.trueExpression = trueExpression;
+ this.falseExpression = falseExpression;
+ }
+
+ @Override
+ public ExpressionResult evaluate(EvaluationContext context) {
+ ExpressionResult conditionResult = condition.evaluate(context);
+ if (conditionResult.isBoolean()) {
+ return conditionResult.asBoolean() ? trueExpression.evaluate(context) : falseExpression.evaluate(context);
+ } else {
+ throw new EvaluationException(SynapseConstants.SIELErrors.IF_CONDITION_ERROR);
+ }
+ }
+}
diff --git a/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ExpressionNode.java b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ExpressionNode.java
new file mode 100644
index 0000000000..14d75a2143
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ExpressionNode.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.synapse.util.SIEL.ast;
+
+import org.apache.synapse.util.SIEL.context.EvaluationContext;
+
+/**
+ * Represents a node in the AST.
+ */
+public interface ExpressionNode {
+ ExpressionResult evaluate(EvaluationContext context);
+}
diff --git a/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ExpressionResult.java b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ExpressionResult.java
new file mode 100644
index 0000000000..9abd889f66
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/ExpressionResult.java
@@ -0,0 +1,206 @@
+/*
+ * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.synapse.util.SIEL.ast;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonNull;
+import com.google.gson.JsonPrimitive;
+import com.google.gson.internal.LazilyParsedNumber;
+import org.apache.synapse.util.SIEL.exception.EvaluationException;
+
+/**
+ * This class represents the result of an expression evaluation.
+ * It can hold values of different types such as String, Number, Boolean, JsonElement, and null.
+ */
+public class ExpressionResult {
+ private final Object value;
+
+ // Constructor for String
+ public ExpressionResult(String value) {
+ this.value = value;
+ }
+
+ public ExpressionResult(Number value) {
+ this.value = value;
+ }
+
+ // Constructor for int
+ public ExpressionResult(int value) {
+ this.value = value;
+ }
+
+ // Constructor for double
+ public ExpressionResult(double value) {
+ this.value = value;
+ }
+
+ // Constructor for boolean
+ public ExpressionResult(boolean value) {
+ this.value = value;
+ }
+
+ // Constructor for JsonElement
+ public ExpressionResult(JsonElement value) {
+ this.value = value;
+ }
+
+ // Constructor for null
+ public ExpressionResult() {
+ this.value = null;
+ }
+
+ // Method to check if the result is null
+ public boolean isNull() {
+ return value == null || (value instanceof JsonElement && value.equals(JsonNull.INSTANCE));
+ }
+
+ // Method to get value as String
+ public String asString() {
+ if (value == null) {
+ return null;
+ } else if (value instanceof String) {
+ // if quoted, remove quotes
+ if (((String) value).startsWith("\"") && ((String) value).endsWith("\"")) {
+ return ((String) value).substring(1, ((String) value).length() - 1);
+ } else if (((String) value).startsWith("'") && ((String) value).endsWith("'")) {
+ return ((String) value).substring(1, ((String) value).length() - 1);
+ }
+ return (String) value;
+ } else if (value instanceof JsonPrimitive && ((JsonPrimitive) value).isString()) {
+ return ((JsonPrimitive) value).getAsString();
+ }
+ return value.toString(); // Fallback to toString() for other types
+ }
+
+ // Method to get value as int
+ public int asInt() {
+ if (value instanceof Number) {
+ return ((Number) value).intValue();
+ } else if (value instanceof JsonPrimitive && ((JsonPrimitive) value).isNumber()) {
+ return ((JsonPrimitive) value).getAsInt();
+ }
+ throw new EvaluationException("Value : " + value + " cannot be converted to int");
+ }
+
+ // Method to get value as double
+ public double asDouble() {
+ if (value instanceof Number) {
+ return ((Number) value).doubleValue();
+ } else if (value instanceof JsonPrimitive && ((JsonPrimitive) value).isNumber()) {
+ return ((JsonPrimitive) value).getAsDouble();
+ }
+ throw new EvaluationException("Value : " + value + " cannot be converted to double");
+ }
+
+ // Method to get value as boolean
+ public boolean asBoolean() {
+ if (value instanceof Boolean) {
+ return (Boolean) value;
+ } else if (value instanceof JsonPrimitive && ((JsonPrimitive) value).isBoolean()) {
+ return ((JsonPrimitive) value).getAsBoolean();
+ }
+ throw new EvaluationException("Value : " + value + " cannot be converted to boolean");
+ }
+
+ // Method to get value as JsonElement
+ public JsonElement asJsonElement() {
+ if (value instanceof JsonElement) {
+ return (JsonElement) value;
+ }
+ throw new EvaluationException("Value is not a JsonElement");
+ }
+
+ // Method to check the actual type of the result
+ public Class getType() {
+ if (value == null) {
+ return null;
+ }
+ return value.getClass();
+ }
+
+ public boolean isNumeric() {
+ return isInteger() || isDouble();
+ }
+ public boolean isInteger() {
+ return value instanceof Integer || (value instanceof JsonPrimitive && isInteger((JsonPrimitive) value));
+ }
+
+ public boolean isDouble() {
+ return value instanceof Double || (value instanceof JsonPrimitive && isDouble((JsonPrimitive) value));
+ }
+
+ public boolean isBoolean() {
+ return value instanceof Boolean || (value instanceof JsonPrimitive && ((JsonPrimitive) value).isBoolean());
+ }
+
+ public boolean isString() {
+ return value instanceof String || (value instanceof JsonPrimitive && ((JsonPrimitive) value).isString());
+ }
+
+ public boolean isObject() {
+ return value instanceof JsonElement && ((JsonElement) value).isJsonObject();
+ }
+
+ public boolean isArray() {
+ return value instanceof JsonElement && ((JsonElement) value).isJsonArray();
+ }
+
+ public boolean isJsonPrimitive() {
+ return value instanceof JsonPrimitive;
+ }
+
+ private boolean isInteger(JsonPrimitive jsonPrimitive) {
+ if (jsonPrimitive.isNumber()) {
+ Number number = jsonPrimitive.getAsNumber();
+ // Check if the number is an instance of integer types (int, long, short)
+ boolean initialCheck = number instanceof Integer || number instanceof Long || number instanceof Short;
+ if (!initialCheck && number instanceof LazilyParsedNumber) {
+ // Check if the number is an instance of integer types (int, long, short)
+ String numberString = number.toString();
+ try {
+ Integer.parseInt(numberString);
+ return true;
+ } catch (NumberFormatException e) {
+ return false;
+ }
+ }
+ return initialCheck;
+ }
+ return false; // Not a number, so it's not an integer
+ }
+
+ private boolean isDouble(JsonPrimitive jsonPrimitive) {
+ if (jsonPrimitive.isNumber()) {
+ Number number = jsonPrimitive.getAsNumber();
+ // Check if the number is an instance of floating-point types (float, double)
+ boolean initialCheck = number instanceof Float || number instanceof Double;
+ if (!initialCheck && number instanceof LazilyParsedNumber) {
+ // Check if the number is an instance of integer types (int, long, short)
+ String numberString = number.toString();
+ try {
+ Double.parseDouble(numberString);
+ return true;
+ } catch (NumberFormatException e) {
+ return false;
+ }
+ }
+ }
+ return false; // Not a number, so it's not a double
+ }
+}
diff --git a/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/FilterExpressionNode.java b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/FilterExpressionNode.java
new file mode 100644
index 0000000000..c7527a30b8
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/FilterExpressionNode.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.synapse.util.SIEL.ast;
+
+import org.apache.synapse.util.SIEL.context.EvaluationContext;
+import org.apache.synapse.util.SIEL.utils.ExpressionUtils;
+
+import java.util.Map;
+
+/**
+ * Represents a json-path filter expression node in the AST.
+ */
+public class FilterExpressionNode implements ExpressionNode {
+
+
+ private String expression;
+ private final Map arguments;
+
+ public FilterExpressionNode(String expression, Map arguments) {
+ this.expression = expression;
+ this.arguments = arguments;
+ }
+
+ /**
+ * return the formatted JSONPath filter expression.
+ * Not evaluating here.
+ */
+ @Override
+ public ExpressionResult evaluate(EvaluationContext context) {
+ for (Map.Entry entry : arguments.entrySet()) {
+ if (entry.getValue() != null) {
+ ExpressionResult result = entry.getValue().evaluate(context);
+ if (result != null) {
+ String regex = ExpressionUtils.escapeSpecialCharacters(entry.getKey());
+ String resultString = result.asString();
+ if (result.isString()) {
+ resultString = "\"" + resultString + "\"";
+ }
+ expression = expression.replaceFirst(regex, resultString);
+ }
+ }
+ }
+ return new ExpressionResult("?" + expression);
+ }
+}
diff --git a/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/HeadersAndPropertiesAccessNode.java b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/HeadersAndPropertiesAccessNode.java
new file mode 100644
index 0000000000..c71b99bb00
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/HeadersAndPropertiesAccessNode.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.synapse.util.SIEL.ast;
+
+import org.apache.synapse.util.SIEL.context.EvaluationContext;
+
+/**
+ * Represents a node in the abstract syntax tree that provides access to headers and properties.
+ */
+public class HeadersAndPropertiesAccessNode implements ExpressionNode {
+ private final String scope;
+
+ public enum Type {
+ HEADER,
+ PROPERTY,
+ CONFIG
+ }
+
+ private final Type type;
+
+ // property key or header name
+ private final ExpressionNode key;
+
+ public HeadersAndPropertiesAccessNode(ExpressionNode node, Type type) {
+ this.key = node;
+ this.type = type;
+ scope = null;
+ }
+
+ public HeadersAndPropertiesAccessNode(ExpressionNode node, String scope) {
+ this.key = node;
+ this.scope = scope;
+ this.type = Type.PROPERTY;
+ }
+
+ @Override
+ public ExpressionResult evaluate(EvaluationContext context) {
+ if (key != null) {
+ String name = key.evaluate(context).asString();
+ if (type.equals(Type.HEADER)) {
+ Object value = context.getHeader(name);
+ return new ExpressionResult(value != null ? value.toString() : "");
+ } else {
+ Object value = context.getProperty(name, scope);
+ return new ExpressionResult(value != null ? value.toString() : "");
+ }
+ }
+ return null;
+ }
+}
diff --git a/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/LiteralNode.java b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/LiteralNode.java
new file mode 100644
index 0000000000..17a1aecc21
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/LiteralNode.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.synapse.util.SIEL.ast;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import org.apache.synapse.util.SIEL.context.EvaluationContext;
+
+/**
+ * Represents a leaf node in the AST that holds a literal value.
+ */
+public class LiteralNode implements ExpressionNode {
+ private final String value;
+ private ArgumentListNode parameterList = new ArgumentListNode();
+
+ public enum Type {
+ NUMBER,
+ STRING,
+ BOOLEAN,
+ NULL,
+ ARRAY
+ }
+
+ private final Type type;
+
+ public LiteralNode(String value, Type type) {
+ this.value = value;
+ this.type = type;
+ }
+
+ public LiteralNode(ArgumentListNode value, Type type) {
+ this.parameterList = value;
+ this.type = type;
+ this.value = "";
+ }
+
+ @Override
+ public ExpressionResult evaluate(EvaluationContext context) {
+ switch (type) {
+ case NUMBER:
+ return parseNumber(value);
+ case STRING:
+ return new ExpressionResult(value);
+ case BOOLEAN:
+ return new ExpressionResult(Boolean.parseBoolean(value));
+ case NULL:
+ return new ExpressionResult();
+ case ARRAY:
+ return parseArray(context);
+ default:
+ throw new IllegalArgumentException("Unsupported type: " + type);
+ }
+ }
+
+ private ExpressionResult parseNumber(String value) {
+ try {
+ return new ExpressionResult(Integer.parseInt(value));
+ } catch (NumberFormatException e1) {
+ try {
+ return new ExpressionResult(Float.parseFloat(value));
+ } catch (NumberFormatException e2) {
+ try {
+ return new ExpressionResult(Double.parseDouble(value));
+ } catch (NumberFormatException e3) {
+ throw new IllegalArgumentException("Value " + value + " is not a number");
+ }
+ }
+ }
+ }
+
+ private ExpressionResult parseArray(EvaluationContext context) {
+ JsonArray jsonArray = new JsonArray();
+ for (ExpressionNode expressionNode : parameterList.getArguments()) {
+ ExpressionResult result = expressionNode.evaluate(context);
+ if (result.getType().equals(JsonElement.class)) {
+ jsonArray.add(result.asJsonElement());
+ } else if (result.isInteger()) {
+ jsonArray.add(result.asInt());
+ } else if (result.isDouble()) {
+ jsonArray.add(result.asDouble());
+ } else {
+ jsonArray.add(result.asString());
+ }
+ }
+ return new ExpressionResult(jsonArray);
+ }
+}
diff --git a/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/PayloadAccessNode.java b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/PayloadAccessNode.java
new file mode 100644
index 0000000000..7608bc62ac
--- /dev/null
+++ b/modules/core/src/main/java/org/apache/synapse/util/SIEL/ast/PayloadAccessNode.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.synapse.util.SIEL.ast;
+
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParser;
+import com.google.gson.JsonPrimitive;
+import com.google.gson.JsonSyntaxException;
+import com.jayway.jsonpath.Configuration;
+import com.jayway.jsonpath.JsonPath;
+import com.jayway.jsonpath.Option;
+import com.jayway.jsonpath.PathNotFoundException;
+import com.jayway.jsonpath.spi.json.GsonJsonProvider;
+import com.jayway.jsonpath.spi.json.JsonProvider;
+import com.jayway.jsonpath.spi.mapper.GsonMappingProvider;
+import com.jayway.jsonpath.spi.mapper.MappingProvider;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.synapse.SynapseConstants;
+import org.apache.synapse.util.SIEL.context.EvaluationContext;
+import org.apache.synapse.util.SIEL.exception.EvaluationException;
+import org.apache.synapse.util.SIEL.utils.ExpressionUtils;
+
+import java.io.IOException;
+import java.util.EnumSet;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/**
+ * Represents a node in the AST that accesses a value in the payload or variable.
+ * Resolve placeholders in the expression and evaluate the expression using JSONPath.
+ */
+public class PayloadAccessNode implements ExpressionNode {
+ private String expression;
+ private final Map arguments;
+
+ private final boolean isVariable;
+
+ public PayloadAccessNode(String expression, Map arguments, boolean isVariable) {
+ this.expression = expression;
+ this.arguments = arguments;
+ this.isVariable = isVariable;
+ Configuration.setDefaults(new Configuration.Defaults() {
+ private final JsonProvider jsonProvider = new GsonJsonProvider(new GsonBuilder().serializeNulls().create());
+ private final MappingProvider mappingProvider = new GsonMappingProvider();
+
+ public JsonProvider jsonProvider() {
+ return jsonProvider;
+ }
+
+ public MappingProvider mappingProvider() {
+ return mappingProvider;
+ }
+
+ public Set