support scoped params with unscoped op fields

engine-api/src/main/java/io/nosqlbench/engine/api/activityconfig/rawyaml/RawStmtDef.java

@@ -18,6 +18,7 @@
 package io.nosqlbench.engine.api.activityconfig.rawyaml;
 
 import io.nosqlbench.nb.api.errors.BasicError;
+import io.nosqlbench.nb.api.errors.OpConfigError;
 
 import java.util.*;
 
@@ -41,12 +42,15 @@ public class RawStmtDef extends RawStmtFields {
     @SuppressWarnings("unchecked")
     public RawStmtDef(String defaultName, Map<String, Object> map) {
         setFieldsByReflection(map);
+        if (this.getName() == null || this.getName().isEmpty()) {
+            this.setName(defaultName);
+        }
     }
 
     public void setFieldsByReflection(Map<String, Object> map) {
+        checkForUnintendedJsonMap(map, new ArrayList<>());
         super.setFieldsByReflection(map);
 
-
         HashSet<String> found = new HashSet<>();
         for (String opName : opFieldSynonyms) {
             if (map.containsKey(opName)) {
@@ -67,14 +71,19 @@ public class RawStmtDef extends RawStmtFields {
         boolean _params = !getParams().isEmpty();
         boolean _op = op != null;
 
-        if (!_op && !_params) {
-            LinkedHashMap<String, Object> newop = new LinkedHashMap<>();
-            newop.putAll(map);
+        if (_op) {
+            if (_params) {
+                if (map.size() > 0) {
+                    throw new OpConfigError("If you have scoped op and params, you may not have dangling fields.");
+                }
+            } else { // no params. Op was a scoped field and there are dangling fields, so assume they belong to params
+                getParams().putAll(map);
+                map.clear();
+            }
+        } else { // no op, so assume all remaining fields belong to the op
+            LinkedHashMap<String, Object> newop = new LinkedHashMap<>(map);
             setOp(newop);
             map.clear();
-        } else if (_op) {
-            getParams().putAll(map);
-            map.clear();
         }
     }
 
@@ -105,4 +114,23 @@ public class RawStmtDef extends RawStmtFields {
         }
         return super.getName();
     }
+
+    private void checkForUnintendedJsonMap(Object m, List<String> path) {
+        if (m instanceof Map) {
+            ((Map)m).forEach((k,v) -> {
+                if (v == null) {
+                    throw new OpConfigError("A map key '" + k.toString() + "' with a null value was encountered. This is not" +
+                        " allowed, and may be the result of using an unquoted binding, like {" + k + "}. You can simply wrap this in quotes" +
+                        " like \"{"+ k +"\"} to avoid interpreting this as a JSON map." +
+                        (path.size()>0 ? String.join(".",path):""));
+                } else {
+                    if (v instanceof Map) {
+                        path.add(k.toString());
+                        checkForUnintendedJsonMap(v, path);
+                    }
+                }
+            });
+        }
+    }
+
 }

engine-api/src/main/resources/workload_definition/templated_operation_variations.md

@@ -146,6 +146,56 @@ ops:
 ]
 ```
 
+### Anonymous fields may include scoped params
+
+*yaml:*
+
+```yaml
+ops:
+  op1:
+    field1: select * from ks1.tb1;
+    field2: field 2 value
+    params:
+      paramname1: paramvalue1
+```
+
+*json:*
+
+```json5
+{
+  "ops": {
+    "op1": {
+      "field1": "select * from ks1.tb1;",
+      "field2": "field 2 value",
+      "params": {
+        "paramname1": "paramvalue1"
+      }
+    }
+  }
+}
+```
+
+*ops:*
+
+```json5
+[
+  {
+    "name": "block0--op1",
+    "op": {
+      "field1": "select * from ks1.tb1;",
+      "field2": "field 2 value"
+    },
+    params: {
+      "paramname1": "paramvalue1"
+    },
+    "tags": {
+      "block": "block0",
+      "name": "block0--op1"
+    }
+  }
+]
+```
+
 ### Scoped op fields allow dangling param values
 
 *yaml:*

engine-api/src/test/java/io/nosqlbench/engine/api/activityconfig/yaml/StmtDetailOverrideTest.java

@@ -74,7 +74,7 @@ public class StmtDetailOverrideTest {
         assertThat(s.getTags()).containsEntry("tname1", "tval1");
         assertThat(s.getTags()).containsEntry("global_tag1", "tag value");
         assertThat(s.getBindings()).hasSize(3);
-        assertThat(s.getParams()).hasSize(3);
+        assertThat(s.getParams()).hasSize(2);
 
         s = stmts.get(3);
         assertThat(s.getName()).isEqualTo("testblock1--s4");

engine-api/src/test/resources/testdocs/stmt_details.yaml

@@ -15,7 +15,7 @@ blocks:
        global_param1: anothervalue
       tags:
        tname1: tval1
-      freeparam1: "free parameter value"
+#      freeparam1: "free parameter value"
     - name: s4
       stmt: statement 4