gobblin-core/src/main/java/org/apache/gobblin/source/extractor/SimpleJsonExtractor.java gobblin-example/src/main/java/org/apache/gobblin/example/simplejson/SimpleJsonExtractor.java gobblin-core/src/main/java/org/apache/gobblin/source/extractor/DummyExtractor.java gobblin-example/src/main/java/org/apache/gobblin/example/simplejson/SimpleJsonExtractor.java gobblin-core/src/main/java/org/apache/gobblin/writer/partitioner/SchemaBasedWriterPartitioner.java gobblin-example/src/main/java/org/apache/gobblin/example/wikipedia/WikipediaPartitioner.java gobblin-core/src/main/java/org/apache/gobblin/source/extractor/DummyExtractor.java gobblin-example/src/main/java/org/apache/gobblin/example/wikipedia/WikipediaExtractor.java