Introducing Antlr4 for cpsPath parsing

-created new module for cpPathParser
-added antlr rule for cpsPathWithSingleLeafCondition
-added antlr rule for cpsPathWithDescendant (and with leaf conditions)
-added antlr rule for ancestor axis
-added unit test (copied from existing CpsPathQuerySpec)
-udpated cps-ri to use new cpPathQuery from parser module
-'imported' lexer rules from publix xPath grammar
-Re-used existing CpsPathException but conversion happens in cps-ri to prevent additional dependency in cps-path-parser module

Issue-ID: CPS-376

Change-Id: I2c5df98969402cbf69f6573c52705879450ce606
Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>

2 files changed, 9 insertions, 10 deletions

diff --git a/cps-service/src/main/java/org/onap/cps/spi/exceptions/CpsPathException.java b/cps-service/src/main/java/org/onap/cps/spi/exceptions/CpsPathException.java
index fde5566b14..f1e8dc5256 100644
--- a/cps-service/src/main/java/org/onap/cps/spi/exceptions/CpsPathException.java
+++ b/cps-service/src/main/java/org/onap/cps/spi/exceptions/CpsPathException.java
@@ -23,13 +23,14 @@ public class CpsPathException extends CpsException {
 
     private static final long serialVersionUID = 1006899957127327791L;
 
+    private static final String ERROR_MESSAGE = "Error while parsing cpsPath expression";
+
     /**
      * Constructor.
      *
-     * @param message the error message
      * @param details the error details
      */
-    public CpsPathException(final String message, final String details) {
-        super(message, details);
+    public CpsPathException(final String details) {
+        super(ERROR_MESSAGE, details);
     }
 }
diff --git a/cps-service/src/test/groovy/org/onap/cps/spi/exceptions/CpsExceptionsSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/spi/exceptions/CpsExceptionsSpec.groovy
index 8592af908d..b0bd629056 100755
--- a/cps-service/src/test/groovy/org/onap/cps/spi/exceptions/CpsExceptionsSpec.groovy
+++ b/cps-service/src/test/groovy/org/onap/cps/spi/exceptions/CpsExceptionsSpec.groovy
@@ -115,8 +115,8 @@ class CpsExceptionsSpec extends Specification {
     def 'Creating an exception that the schema set being used and cannot be deleted.'() {
         expect: 'the exception details contains the correct message with dataspace and schema set names'
             (new SchemaSetInUseException(dataspaceName, schemaSetName)).details
-                    == ("Schema Set with name ${schemaSetName} in dataspace ${dataspaceName} is having "
-                    + "Anchor records associated.")
+                    == ("Schema Set with name ${schemaSetName} in dataspace ${dataspaceName} is having" +
+                " Anchor records associated.")
     }
 
     def 'Creating a exception that a datanode with a specified xpath does not exist.'() {
@@ -157,10 +157,8 @@ class CpsExceptionsSpec extends Specification {
 
     def 'Creating a cps path exception.'() {
         given: 'a cps path exception is created'
-            def exception = new CpsPathException(providedMessage, providedDetails)
-        expect: 'the exception has the provided message'
-            exception.message == providedMessage
-        and: 'the exception has the provided details'
+            def exception = new CpsPathException(providedDetails)
+        expect: 'the exception has the provided details'
             exception.details == providedDetails
     }
-}
\ No newline at end of file
+}