[GitHub] [drill] arina-ielchiieva commented on a change in pull request #2045: DRILL-7683: Add "message parsing" to new JSON loader

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arina-ielchiieva commented on a change in pull request #2045: DRILL-7683: Add "message parsing" to new JSON loader
URL: https://github.com/apache/drill/pull/2045#discussion_r401231516
 
 

 ##########
 File path: exec/java-exec/src/test/java/org/apache/drill/exec/store/easy/json/parser/TestJsonParserBasics.java
 ##########
 @@ -324,4 +327,64 @@ public void testJsonModeObjects() {
     assertFalse(fixture.next());
     fixture.close();
   }
+
+  /**
+   * Example message parser. A real parser would provide much better
+   * error messages for badly-formed JSON or error codes.
+   */
+  private static class MessageParserFixture implements MessageParser {
+
+    @Override
+    public boolean parsePrefix(TokenIterator tokenizer) {
+      assertEquals(JsonToken.START_OBJECT, tokenizer.requireNext());
+      assertEquals(JsonToken.FIELD_NAME, tokenizer.requireNext());
+      assertEquals(JsonToken.VALUE_STRING, tokenizer.requireNext());
+      if (!tokenizer.stringValue().equals("ok")) {
 
 Review comment:
   Usually is better to start with constant to avoid NPE (I know it's just a test, just noticed).
   ```suggestion
         if (!"ok".equals(tokenizer.stringValue()) {
   ```

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