[GitHub] [pinot] Jackie-Jiang commented on a change in pull request #7792: Nicer error message if you have a typo in your schema file

[GitBox <gi...@apache.org>]

Jackie-Jiang commented on a change in pull request #7792:
URL: https://github.com/apache/pinot/pull/7792#discussion_r752639890



##########
File path: pinot-spi/src/main/java/org/apache/pinot/spi/data/Schema.java
##########
@@ -213,6 +213,10 @@ public void addField(FieldSpec fieldSpec) {
         throw new UnsupportedOperationException("Unsupported field type: " + fieldType);
     }
 
+    if (fieldSpec.getDataType() == null) {
+      throw new UnsupportedOperationException(String.format("'%s' field is missing 'dataType' property", columnName));

Review comment:
       Suggest modeling it as `IllegalArgumentException`. We can also use the `Preconditions` to simplify the check
   ```suggestion
         Preconditions.checkArgument(fieldSpec.getDataType() != null, "'%s' field is missing 'dataType' property", columnName);
   ```

##########
File path: pinot-common/src/test/java/org/apache/pinot/common/data/SchemaTest.java
##########
@@ -253,11 +254,27 @@ public void testSchemaBuilderAddTime() {
     Assert.assertEquals(schema11, schema12);
   }
 
+  @Test(expectedExceptions = com.fasterxml.jackson.databind.JsonMappingException.class,

Review comment:
       Import this class




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