Provide index token to tosca function for nested lists

Index token capability is provided in tosca function for all nested levels of list and custom types

Issue-ID: SDC-4505
Signed-off-by: Imam hussain <imam.hussain@est.tech>
Change-Id: If21c0078e0d17c44b5a31b00d6fac3e18ff6831d

2 files changed, 41 insertions, 24 deletions

diff --git a/common-be/src/main/java/org/openecomp/sdc/be/datatypes/elements/ToscaFunctionJsonDeserializer.java b/common-be/src/main/java/org/openecomp/sdc/be/datatypes/elements/ToscaFunctionJsonDeserializer.java
index de8e30b897..f77c6f949b 100644
--- a/common-be/src/main/java/org/openecomp/sdc/be/datatypes/elements/ToscaFunctionJsonDeserializer.java
+++ b/common-be/src/main/java/org/openecomp/sdc/be/datatypes/elements/ToscaFunctionJsonDeserializer.java
@@ -116,7 +116,8 @@ public class ToscaFunctionJsonDeserializer extends StdDeserializer<ToscaFunction
         toscaGetFunction.setSourceUniqueId(getAsTextOrElseNull(node, "sourceUniqueId"));
         toscaGetFunction.setPropertyName(getAsTextOrElseNull(node, "propertyName"));
         toscaGetFunction.setPropertyUniqueId(getAsTextOrElseNull(node, "propertyUniqueId"));
-        toscaGetFunction.setToscaIndex(getNumberAsTextOrElseNull(node, "toscaIndex"));
+        toscaGetFunction.setToscaIndexList(getNumberAsTextOrElseNull(node, "toscaIndexList", context));
+
         final String propertySource = getAsTextOrElseNull(node, "propertySource");
         if (StringUtils.isNotEmpty(propertySource)) {
             final PropertySource propertySource1 = PropertySource.findType(propertySource).orElseThrow(() ->
@@ -149,20 +150,31 @@ public class ToscaFunctionJsonDeserializer extends StdDeserializer<ToscaFunction
         return jsonNode.asText();
     }
 
-    private Object getNumberAsTextOrElseNull(final JsonNode node, final String fieldName) {
+    private List<Object> getNumberAsTextOrElseNull(final JsonNode node, final String fieldName, final DeserializationContext context) throws JsonMappingException{
+        List<Object> toscaIndexList = new ArrayList<Object>();
         final JsonNode jsonNode = node.get(fieldName);
-        if (jsonNode == null) {
-            return null;
-        }
-        if (jsonNode.asText().equalsIgnoreCase("INDEX")) {
-            return jsonNode.asText();
-        }
-        try {
-            Integer.parseInt(jsonNode.asText());
-        } catch(Exception e) {
-            return null;
+        if (jsonNode != null) {
+            if (!jsonNode.isArray()) {
+                throw context.instantiationException(ToscaGetFunctionDataDefinition.class, "Expecting an array for toscaIndexList attribute");
+            }
+            for (int index=0;index<jsonNode.size();index++) {
+                String textValue = jsonNode.get(index).asText();
+                if (index%2 == 0) {
+                    if (textValue.equalsIgnoreCase("INDEX")) {
+                        toscaIndexList.add(textValue);
+                    } else {
+                        try {
+                            toscaIndexList.add(Integer.parseInt(textValue));
+                        } catch(Exception e) {
+                            throw context.instantiationException(ToscaGetFunctionDataDefinition.class, "Expecting a valid value for toscaIndex attribute");
+                        }
+                    }
+                } else {
+                    toscaIndexList.add(textValue);
+                }
+            }
         }
-        return Integer.parseInt(jsonNode.asText());
+        return toscaIndexList;
     }
 
     private ToscaConcatFunction deserializeConcatFunction(final JsonNode concatFunctionJsonNode,
diff --git a/common-be/src/main/java/org/openecomp/sdc/be/datatypes/elements/ToscaGetFunctionDataDefinition.java b/common-be/src/main/java/org/openecomp/sdc/be/datatypes/elements/ToscaGetFunctionDataDefinition.java
index 9396188fcc..5bd9fe33db 100644
--- a/common-be/src/main/java/org/openecomp/sdc/be/datatypes/elements/ToscaGetFunctionDataDefinition.java
+++ b/common-be/src/main/java/org/openecomp/sdc/be/datatypes/elements/ToscaGetFunctionDataDefinition.java
@@ -44,7 +44,7 @@ public class ToscaGetFunctionDataDefinition implements ToscaFunction, ToscaFunct
     private String sourceName;
     private ToscaGetFunctionType functionType;
     private List<String> propertyPathFromSource = new ArrayList<>();
-    private Object toscaIndex;
+    private List<Object> toscaIndexList;
 
     public ToscaGetFunctionDataDefinition() {
         //necessary for JSON conversions
@@ -89,10 +89,13 @@ public class ToscaGetFunctionDataDefinition implements ToscaFunction, ToscaFunct
             );
         }
         if (propertySource == PropertySource.SELF) {
-            if (toscaIndex != null) {
-                Object toscaIndexValue = StringUtils.isNumeric(toscaIndex.toString()) ? Integer.parseInt(toscaIndex.toString()) : toscaIndex;
+            if (toscaIndexList.size() > 0) {
+                List<Object> parsedIndexList = new ArrayList<Object>();
+                toscaIndexList.forEach((obj) -> {
+                    parsedIndexList.add(StringUtils.isNumeric(obj.toString()) ? Integer.parseInt(obj.toString()) : obj);
+                });
                 return Map.of(functionType.getFunctionName(),
-                    Stream.concat(Stream.of(PropertySource.SELF.getName()), Stream.concat(propertyPathFromSource.stream(),Stream.of(toscaIndexValue))).collect(Collectors.toList())
+                    Stream.concat(Stream.of(PropertySource.SELF.getName()), Stream.concat(propertyPathFromSource.stream(),parsedIndexList.stream())).collect(Collectors.toList())
                 );
             }
             return Map.of(functionType.getFunctionName(),
@@ -105,10 +108,13 @@ public class ToscaGetFunctionDataDefinition implements ToscaFunction, ToscaFunct
                     String.format("sourceName is required in order to generate the %s from INSTANCE value", functionType.getFunctionName())
                 );
             }
-            if (toscaIndex != null) {
-                Object toscaIndexValue = StringUtils.isNumeric(toscaIndex.toString()) ? Integer.parseInt(toscaIndex.toString()) : toscaIndex;
+            if (toscaIndexList.size() > 0) {
+                List<Object> parsedIndexList = new ArrayList<Object>();
+                toscaIndexList.forEach((obj) -> {
+                    parsedIndexList.add(StringUtils.isNumeric(obj.toString()) ? Integer.parseInt(obj.toString()) : obj);
+                });
                 return Map.of(functionType.getFunctionName(),
-                    Stream.concat(Stream.of(sourceName), Stream.concat(propertyPathFromSource.stream(),Stream.of(toscaIndexValue))).collect(Collectors.toList())
+                    Stream.concat(Stream.of(sourceName), Stream.concat(propertyPathFromSource.stream(),parsedIndexList.stream())).collect(Collectors.toList())
                 );
             }
             return Map.of(functionType.getFunctionName(),
@@ -123,10 +129,9 @@ public class ToscaGetFunctionDataDefinition implements ToscaFunction, ToscaFunct
         List<Object> propertySourceCopy = new ArrayList<Object>(this.propertyPathFromSource);
         List<Object> propertySourceOneCopy = new ArrayList<>();
         propertySourceOneCopy.add(this.propertyPathFromSource.get(0));
-        if (toscaIndex != null) {
-            Object toscaIndexValue = StringUtils.isNumeric(toscaIndex.toString()) ? Integer.parseInt(toscaIndex.toString()) : toscaIndex;
-            propertySourceCopy.add(toscaIndexValue);
-            propertySourceOneCopy.add(toscaIndexValue);
+        if (toscaIndexList.size() > 0) {
+            propertySourceCopy.addAll(toscaIndexList);
+            propertySourceOneCopy.addAll(toscaIndexList);
         }
         if (this.propertyPathFromSource.size() == 1) {
             return Map.of(this.functionType.getFunctionName(), propertySourceOneCopy);