Hi Maria, Thanks for the update.
Some comments: https://github.com/podorvanova/gora/blob/gora-664/gora-elasticsearch/src/main/java/org/apache/gora/elasticsearch/store/ElasticsearchStore.java#L192 Please add the index mappings when you create the elasticsearch index. https://www.elastic.co/guide/en/elasticsearch/client/java-rest/master/java-rest-high-create-index.html#java-rest-high-create-index-request-mappings You can use the Field mappings parsed from the XML file. https://github.com/podorvanova/gora/blob/gora-664/gora-elasticsearch/src/main/java/org/apache/gora/elasticsearch/mapping/ElasticsearchMapping.java#L28 Regarding your question, Elasticsearch supports complex datatypes: https://www.elastic.co/guide/en/elasticsearch/reference/current/object.html https://www.elastic.co/guide/en/elasticsearch/reference/current/nested.html You can use the RethinkDB datastore as an example and store recursively the fields of the embedded objects. https://github.com/apache/gora/blob/b45581a371d2d69c472c37793efa085436056c9b/gora-rethinkdb/src/main/java/org/apache/gora/rethinkdb/store/RethinkDBStore.java#L448 Give it a try first and let me know if you get stuck. Alternatively, if the first option is not feasible, you can serialize the embedded objects as byte array, example: https://github.com/apache/gora/blob/master/gora-solr/src/main/java/org/apache/gora/solr/store/SolrStore.java#L735 https://www.elastic.co/guide/en/elasticsearch/reference/current/binary.html Best regards, John. El sáb, 16 ene 2021 a las 8:02, Maria Podorvanova (< podorvanova.ma...@gmail.com>) escribió: > Hi, > > Report #7 > Period: January 10 - January 16 > Activities: > - Fixed authentication [1]: > > 1. Set up password to Elasticsearch container properly > 2. Set default Elasticsearch container server’s username in > gora.properties > 3. Added exceptions for missing arguments in authentication > > - Added a parameter for the XSD validation [2]: > > 1. Defined a parameter for the XSD validation > 2. Added a test case for the parameter > 3. Made ElasticsearchStore read mapping file from properties, not > configuration > > - Implemented some basic Input-Output operations for schema management [3]: > > 1. Implemented delete, get and put methods > 2. Implemented newInstance and getUnionSchema utility methods > 3. Implemented basic serialization/deserialization for primitive AVRO > types > > > Here are links to the commits: > [1] > https://github.com/apache/gora/commit/679b6d8f0a27b7a7be99b6e8773327d482b9996b > [2] > https://github.com/apache/gora/commit/0f17849a383ef5f29e650eda22fb4d3022578f43 > [3] > https://github.com/apache/gora/commit/474a3946ebfde25732fe16d6546aa479fc6509a0 > > This week I have started work on serialization/deserialization. While > testing get method I found that UNION case could be a combination of NULL, > STRING or another RECORD for external table references (e.g. boss for > Employee). Could you explain to me what I should do in this case? I see two > possible cases here: 1) Do deserialize recursively if the field value is a > RECORD 2) Make another request for STRING case, where I have only key for > the external object. > > Regards, > Maria >
