Use SortOrder instead of SortMode, because SortMode sort column type of Array only. (#1157)

apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/dao/ui/InstanceEsUIDAO.java

@@ -18,32 +18,23 @@
 
 package org.apache.skywalking.apm.collector.storage.es.dao.ui;
 
-import java.util.LinkedList;
-import java.util.List;
+import java.util.*;
 import org.apache.skywalking.apm.collector.client.elasticsearch.ElasticSearchClient;
-import org.apache.skywalking.apm.collector.core.util.BooleanUtils;
-import org.apache.skywalking.apm.collector.core.util.StringUtils;
+import org.apache.skywalking.apm.collector.core.util.*;
 import org.apache.skywalking.apm.collector.storage.dao.ui.IInstanceUIDAO;
 import org.apache.skywalking.apm.collector.storage.es.base.dao.EsDAO;
-import org.apache.skywalking.apm.collector.storage.table.register.Instance;
-import org.apache.skywalking.apm.collector.storage.table.register.InstanceTable;
+import org.apache.skywalking.apm.collector.storage.table.register.*;
 import org.apache.skywalking.apm.collector.storage.ui.application.Application;
 import org.apache.skywalking.apm.collector.storage.ui.server.AppServerInfo;
-import org.elasticsearch.action.get.GetRequestBuilder;
-import org.elasticsearch.action.get.GetResponse;
-import org.elasticsearch.action.search.SearchRequestBuilder;
-import org.elasticsearch.action.search.SearchResponse;
-import org.elasticsearch.action.search.SearchType;
-import org.elasticsearch.index.query.BoolQueryBuilder;
-import org.elasticsearch.index.query.QueryBuilders;
+import org.elasticsearch.action.get.*;
+import org.elasticsearch.action.search.*;
+import org.elasticsearch.index.query.*;
 import org.elasticsearch.search.SearchHit;
 import org.elasticsearch.search.aggregations.AggregationBuilders;
 import org.elasticsearch.search.aggregations.bucket.terms.Terms;
 import org.elasticsearch.search.aggregations.metrics.valuecount.ValueCount;
-import org.elasticsearch.search.sort.SortBuilders;
-import org.elasticsearch.search.sort.SortMode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import org.elasticsearch.search.sort.*;
+import org.slf4j.*;
 
 /**
  * @author peng-yongsheng
@@ -200,7 +191,7 @@ public class InstanceEsUIDAO extends EsDAO implements IInstanceUIDAO {
         searchRequestBuilder.setSize(1);
 
         searchRequestBuilder.setQuery(QueryBuilders.termQuery(InstanceTable.APPLICATION_ID.getName(), applicationId));
-        searchRequestBuilder.addSort(SortBuilders.fieldSort(InstanceTable.REGISTER_TIME.getName()).sortMode(SortMode.MIN));
+        searchRequestBuilder.addSort(SortBuilders.fieldSort(InstanceTable.REGISTER_TIME.getName()).order(SortOrder.ASC));
 
         SearchResponse searchResponse = searchRequestBuilder.execute().actionGet();
 
@@ -220,7 +211,7 @@ public class InstanceEsUIDAO extends EsDAO implements IInstanceUIDAO {
         searchRequestBuilder.setSize(1);
 
         searchRequestBuilder.setQuery(QueryBuilders.termQuery(InstanceTable.APPLICATION_ID.getName(), applicationId));
-        searchRequestBuilder.addSort(SortBuilders.fieldSort(InstanceTable.HEARTBEAT_TIME.getName()).sortMode(SortMode.MAX));
+        searchRequestBuilder.addSort(SortBuilders.fieldSort(InstanceTable.HEARTBEAT_TIME.getName()).order(SortOrder.DESC));
 
         SearchResponse searchResponse = searchRequestBuilder.execute().actionGet();