}

    @Test
    public void test_parseJson_operationDocument() {
        final String json = "{\"_index\":\"fess_config.coordinator\",\"_id\":\"reindex\","
                + "\"found\":true,\"_seq_no\":5,\"_primary_term\":1," + "\"_source\":{\"type\":\"operation\",\"name\":\"reindex\","
                + "\"instanceId\":\"node1@host1\",\"hostname\":\"host1\","

index.field.doc_id=doc_id
# Field name for internal ID in the index.
index.field.id=_id
# Field name for version in the index.
index.field.version=_version
# Field name for sequence number in the index.
index.field.seq_no=_seq_no
# Field name for primary term in the index.
index.field.primary_term=_primary_term
# Field name for language in the index.
index.field.lang=lang
# Field name for cache status in the index.