+Retrieve Value From Elasticsearch
+ [Arguments] ${data_category} ${metric_name} ${node_id} ${rk_node_id}
+ [Documentation] Retrieve the last record of Elastic Search from index TSDR. Query is done by data category, metricname and node ID
+ Create Session session http://${ODL_SYSTEM_IP}:${ELASTICPORT} auth=${AUTH} headers=${HEADERS_QUERY}
+ ${els_query}= create_query_string_search ${data_category} ${metric_name} ${node_id} ${rk_node_id}
+ ${els_JSON_request}= build_elastic_search_JSON_request ${els_query}
+ ${resp}= RequestsLibrary.Post_Request session _search?pretty data=${els_JSON_request}
+ Should Be Equal As Strings ${resp.status_code} 200
+ @{convert}= Parse Json ${resp.content}
+ ${json}= RequestsLibrary.To Json ${resp.content}
+ ${result}= extract_metric_value_search ${json}
+ [Teardown] Delete All Sessions
+ [Return] ${result}
+
+Check Available values from Elasticsearch
+ [Arguments] ${data_category} ${number_items}
+ [Documentation] Check whether data were sent to Elastic Search. We retrieve all data by data category and then compare its count
+ Create Session session http://${ODL_SYSTEM_IP}:${ELASTICPORT} auth=${AUTH} headers=${HEADERS_QUERY}
+ ${els_query}= create_query_string_count ${data_category}
+ ${els_JSON_request}= build_elastic_search_JSON_request ${els_query}
+ ${resp}= RequestsLibrary.Post_Request session _search?pretty data=${els_JSON_request}
+ Should Be Equal As Strings ${resp.status_code} 200
+ @{convert}= Parse Json ${resp.content}
+ ${json}= RequestsLibrary.To Json ${resp.content}
+ ${result}= extract_metric_value_count ${json}
+ Log To Console Elasticsearch: Check number of elements
+ Should Be True ${result} > ${number_items}
+ [Teardown] Delete All Sessions
+
+Clear Elasticsearch Datastore
+ [Documentation] Clear Elastic Search Datastore
+ Create Session session http://${ODL_SYSTEM_IP}:${ELASTICPORT} auth=${AUTH} headers=${HEADERS_QUERY}
+ ${resp}= RequestsLibrary.Delete_Request session tsdr
+ Should Be Equal As Strings ${resp.status_code} 200
+ [Teardown] Delete All Sessions
+ [Return] ${resp.status_code}