diff options
Diffstat (limited to 'cps-path-parser/src/main')
| -rw-r--r-- | cps-path-parser/src/main/antlr4/org/onap/cps/cpspath/parser/antlr4/CpsPath.g4 | 54 | ||||
| -rw-r--r-- | cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathBuilder.java | 52 | ||||
| -rw-r--r-- | cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathPrefixType.java (renamed from cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQueryType.java) | 17 | ||||
| -rw-r--r-- | cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQuery.java | 28 |
4 files changed, 74 insertions, 77 deletions
diff --git a/cps-path-parser/src/main/antlr4/org/onap/cps/cpspath/parser/antlr4/CpsPath.g4 b/cps-path-parser/src/main/antlr4/org/onap/cps/cpspath/parser/antlr4/CpsPath.g4 index 198cede0d1..cefeac4387 100644 --- a/cps-path-parser/src/main/antlr4/org/onap/cps/cpspath/parser/antlr4/CpsPath.g4 +++ b/cps-path-parser/src/main/antlr4/org/onap/cps/cpspath/parser/antlr4/CpsPath.g4 @@ -20,56 +20,50 @@ grammar CpsPath ; -cpsPath: (cpsPathWithSingleLeafCondition | cpsPathWithDescendant | cpsPathWithDescendantAndLeafConditions) ancestorAxis? ; +cpsPath : ( prefix | descendant | incorrectPrefix ) multipleLeafConditions? textFunctionCondition? ancestorAxis? ; -ancestorAxis: SLASH KW_ANCESTOR COLONCOLON ancestorPath ; +ancestorAxis : SLASH KW_ANCESTOR COLONCOLON ancestorPath ; -ancestorPath: yangElement (SLASH yangElement)* ; +ancestorPath : yangElement ( SLASH yangElement)* ; -cpsPathWithSingleLeafCondition: prefix singleValueCondition postfix? ; +textFunctionCondition : SLASH leafName OB KW_TEXT_FUNCTION EQ StringLiteral CB ; -/* -No need to ditinguish between cpsPathWithDescendant | cpsPathWithDescendantAndLeafConditions really! -See https://jira.onap.org/browse/CPS-436 -*/ - -cpsPathWithDescendant: descendant ; - -cpsPathWithDescendantAndLeafConditions: descendant multipleValueConditions ; +prefix : ( SLASH yangElement)* SLASH containerName ; -descendant: SLASH prefix ; +descendant : SLASH prefix ; -prefix: (SLASH yangElement)* SLASH containerName ; +incorrectPrefix : SLASH SLASH SLASH+ ; -postfix: (SLASH yangElement)+ ; +yangElement : containerName listElementRef? ; -yangElement: containerName listElementRef? ; +containerName : QName ; -containerName: QName ; +listElementRef : OB leafCondition ( KW_AND leafCondition)* CB ; -listElementRef: multipleValueConditions ; +multipleLeafConditions : OB leafCondition ( KW_AND leafCondition)* CB ; -singleValueCondition: '[' leafCondition ']' ; +leafCondition : AT leafName EQ ( IntegerLiteral | StringLiteral) ; -multipleValueConditions: '[' leafCondition (' and ' leafCondition)* ']' ; - -leafCondition: '@' leafName '=' (IntegerLiteral | StringLiteral ) ; - -//To Confirm: defintion of Lefname with external xPath grammar -leafName: QName ; +leafName : QName ; /* * Lexer Rules - * Most of the lexer rules below are 'imporetd' from + * Most of the lexer rules below are inspired by * https://raw.githubusercontent.com/antlr/grammars-v4/master/xpath/xpath31/XPath31.g4 */ -SLASH : '/'; +AT : '@' ; +CB : ']' ; COLONCOLON : '::' ; +EQ : '=' ; +OB : '[' ; +SLASH : '/' ; // KEYWORDS KW_ANCESTOR : 'ancestor' ; +KW_AND : 'and' ; +KW_TEXT_FUNCTION: 'text()' ; IntegerLiteral : FragDigits ; // Add below type definitions for leafvalue comparision in https://jira.onap.org/browse/CPS-440 @@ -77,7 +71,7 @@ DecimalLiteral : ('.' FragDigits) | (FragDigits '.' [0-9]*) ; DoubleLiteral : (('.' FragDigits) | (FragDigits ('.' [0-9]*)?)) [eE] [+-]? FragDigits ; StringLiteral : ('"' (FragEscapeQuot | ~[^"])*? '"') | ('\'' (FragEscapeApos | ~['])*? '\'') ; fragment FragEscapeQuot : '""' ; -fragment FragEscapeApos : '\''; +fragment FragEscapeApos : '\'' ; fragment FragDigits : [0-9]+ ; QName : FragQName ; @@ -109,7 +103,7 @@ fragment FragNCNameChar | '\u00B7' | '\u0300'..'\u036F' | '\u203F'..'\u2040' ; -fragment FragmentNCName : FragNCNameStartChar FragNCNameChar* ; +fragment FragmentNCName : FragNCNameStartChar FragNCNameChar* ; // https://www.w3.org/TR/REC-xml/#NT-Char @@ -117,7 +111,7 @@ fragment FragChar : '\u0009' | '\u000a' | '\u000d' | '\u0020'..'\ud7ff' | '\ue000'..'\ufffd' | '\u{10000}'..'\u{10ffff}' - ; + ; // Skip all Whitespace Whitespace : ('\u000d' | '\u000a' | '\u0020' | '\u0009')+ -> skip ; diff --git a/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathBuilder.java b/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathBuilder.java index b9d0c25b13..ebf6fd3c91 100644 --- a/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathBuilder.java +++ b/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathBuilder.java @@ -20,18 +20,18 @@ package org.onap.cps.cpspath.parser; +import static org.onap.cps.cpspath.parser.CpsPathPrefixType.DESCENDANT; + import java.util.HashMap; import java.util.Map; import org.onap.cps.cpspath.parser.antlr4.CpsPathBaseListener; import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.AncestorAxisContext; -import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.CpsPathWithDescendantAndLeafConditionsContext; -import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.CpsPathWithDescendantContext; -import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.CpsPathWithSingleLeafConditionContext; +import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.DescendantContext; +import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.IncorrectPrefixContext; import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.LeafConditionContext; -import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.MultipleValueConditionsContext; -import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.PostfixContext; +import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.MultipleLeafConditionsContext; import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.PrefixContext; -import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.SingleValueConditionContext; +import org.onap.cps.cpspath.parser.antlr4.CpsPathParser.TextFunctionConditionContext; public class CpsPathBuilder extends CpsPathBaseListener { @@ -45,8 +45,8 @@ public class CpsPathBuilder extends CpsPathBaseListener { } @Override - public void exitPostfix(final PostfixContext ctx) { - throw new IllegalStateException(String.format("Unsupported postfix %s encountered in CpsPath.", ctx.getText())); + public void exitIncorrectPrefix(final IncorrectPrefixContext ctx) { + throw new IllegalStateException("CPS path can only start with one or two slashes (/)"); } @Override @@ -64,38 +64,18 @@ public class CpsPathBuilder extends CpsPathBaseListener { } @Override - public void enterSingleValueCondition(final SingleValueConditionContext ctx) { - leavesData.clear(); + public void exitDescendant(final DescendantContext ctx) { + cpsPathQuery.setCpsPathPrefixType(DESCENDANT); + cpsPathQuery.setDescendantName(ctx.getText().substring(2)); } @Override - public void enterMultipleValueConditions(final MultipleValueConditionsContext ctx) { + public void enterMultipleLeafConditions(final MultipleLeafConditionsContext ctx) { leavesData.clear(); } @Override - public void exitSingleValueCondition(final SingleValueConditionContext ctx) { - final String leafName = ctx.leafCondition().leafName().getText(); - cpsPathQuery.setLeafName(leafName); - cpsPathQuery.setLeafValue(leavesData.get(leafName)); - } - - @Override - public void exitCpsPathWithSingleLeafCondition(final CpsPathWithSingleLeafConditionContext ctx) { - cpsPathQuery.setCpsPathQueryType(CpsPathQueryType.XPATH_LEAF_VALUE); - } - - @Override - public void exitCpsPathWithDescendant(final CpsPathWithDescendantContext ctx) { - cpsPathQuery.setCpsPathQueryType(CpsPathQueryType.XPATH_HAS_DESCENDANT_ANYWHERE); - cpsPathQuery.setDescendantName(cpsPathQuery.getXpathPrefix().substring(1)); - } - - @Override - public void exitCpsPathWithDescendantAndLeafConditions( - final CpsPathWithDescendantAndLeafConditionsContext ctx) { - cpsPathQuery.setCpsPathQueryType(CpsPathQueryType.XPATH_HAS_DESCENDANT_WITH_LEAF_VALUES); - cpsPathQuery.setDescendantName(cpsPathQuery.getXpathPrefix().substring(1)); + public void exitMultipleLeafConditions(final MultipleLeafConditionsContext ctx) { cpsPathQuery.setLeavesData(leavesData); } @@ -104,6 +84,12 @@ public class CpsPathBuilder extends CpsPathBaseListener { cpsPathQuery.setAncestorSchemaNodeIdentifier(ctx.ancestorPath().getText()); } + @Override + public void exitTextFunctionCondition(final TextFunctionConditionContext ctx) { + cpsPathQuery.setTextFunctionConditionLeafName(ctx.leafName().getText()); + cpsPathQuery.setTextFunctionConditionValue(stripFirstAndLastCharacter(ctx.StringLiteral().getText())); + } + CpsPathQuery build() { return cpsPathQuery; } diff --git a/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQueryType.java b/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathPrefixType.java index ac3e313340..dfac9b0c89 100644 --- a/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQueryType.java +++ b/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathPrefixType.java @@ -22,19 +22,16 @@ package org.onap.cps.cpspath.parser; /** - * The enum Cps path query type. + * The enum Cps path prefix type. */ -public enum CpsPathQueryType { +public enum CpsPathPrefixType { /** - * Xpath descendant anywhere type e.g. //nodeName . + * Fully qualified Xpath starting from root with single slash e.g. /parent/child . */ - XPATH_HAS_DESCENDANT_ANYWHERE, - /** - * Xpath descendant anywhere type e.g. //nodeName[@leafName="value"] . - */ - XPATH_HAS_DESCENDANT_WITH_LEAF_VALUES, + ABSOLUTE, + /** - * Xpath leaf value cps path query type e.g. /cps-path[@leaf1="leafValue" and @leaf2=123] . + * Xpath descendant anywhere starting with double slash type e.g. //child/grandchild . */ - XPATH_LEAF_VALUE + DESCENDANT } diff --git a/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQuery.java b/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQuery.java index 107bfa3e3a..de7adf2b71 100644 --- a/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQuery.java +++ b/cps-path-parser/src/main/java/org/onap/cps/cpspath/parser/CpsPathQuery.java @@ -20,6 +20,8 @@ package org.onap.cps.cpspath.parser; +import static org.onap.cps.cpspath.parser.CpsPathPrefixType.ABSOLUTE; + import java.util.Map; import lombok.AccessLevel; import lombok.Getter; @@ -36,13 +38,13 @@ import org.onap.cps.cpspath.parser.antlr4.CpsPathParser; @Setter(AccessLevel.PACKAGE) public class CpsPathQuery { - private CpsPathQueryType cpsPathQueryType; private String xpathPrefix; - private String leafName; - private Object leafValue; + private CpsPathPrefixType cpsPathPrefixType = ABSOLUTE; private String descendantName; private Map<String, Object> leavesData; private String ancestorSchemaNodeIdentifier = ""; + private String textFunctionConditionLeafName; + private String textFunctionConditionValue; /** * Returns a cps path query. @@ -68,7 +70,7 @@ public class CpsPathQuery { } /** - * Has ancestor axis been populated. + * Has ancestor axis been included in cpsPath. * * @return boolean value. */ @@ -76,4 +78,22 @@ public class CpsPathQuery { return !(ancestorSchemaNodeIdentifier.isEmpty()); } + /** + * Have leaf value conditions been included in cpsPath. + * + * @return boolean value. + */ + public boolean hasLeafConditions() { + return leavesData != null; + } + + /** + * Has text function condition been included in cpsPath. + * + * @return boolean value. + */ + public boolean hasTextFunctionCondition() { + return textFunctionConditionLeafName != null; + } + } |