[DE-876] added missing statistics to CursorStats: documentLookups, intermediat… (#580)

* added missing statistics to CursorStats: documentLookups, intermediateCommits, seeks

* test fix

Author: rashtao

core/src/main/java/com/arangodb/entity/CursorStats.java

@@ -20,6 +20,9 @@ public final class CursorStats {
     private Long fullCount;
     private Double executionTime;
     private Long peakMemoryUsage;
+    private Integer documentLookups;
+    private Integer intermediateCommits;
+    private Integer seeks;
 
     @JsonAnySetter
     public void add(String key, Object value) {
@@ -142,4 +145,22 @@ public Double getExecutionTime() {
     public Long getPeakMemoryUsage() {
         return peakMemoryUsage;
     }
+
+    public Integer getDocumentLookups() {
+        return documentLookups;
+    }
+
+    /**
+     * @return The total number of intermediate commits the query has performed. This number can only be greater than
+     * zero for data-modification queries that perform modifications beyond the `--rocksdb.intermediate-commit-count`
+     * or `--rocksdb.intermediate-commit-size` thresholds. In a cluster, the intermediate commits are tracked per
+     * DB-Server that participates in the query and are summed up in the end.
+     */
+    public Integer getIntermediateCommits() {
+        return intermediateCommits;
+    }
+
+    public Integer getSeeks() {
+        return seeks;
+    }
 }

test-functional/src/test/java/com/arangodb/ArangoDatabaseAsyncTest.java

@@ -630,6 +630,11 @@ void queryStats(ArangoDatabaseAsync db) throws ExecutionException, InterruptedEx
         assertThat(cursor.getExtra().getStats().getFiltered()).isNotNull();
         assertThat(cursor.getExtra().getStats().getExecutionTime()).isNotNull();
         assertThat(cursor.getExtra().getStats().getPeakMemoryUsage()).isNotNull();
+        assertThat(cursor.getExtra().getStats().getIntermediateCommits()).isNotNull();
+        if (isAtLeastVersion(3, 12)) {
+            assertThat(cursor.getExtra().getStats().getDocumentLookups()).isNotNull();
+            assertThat(cursor.getExtra().getStats().getSeeks()).isNotNull();
+        }
     }
 
     @ParameterizedTest

test-functional/src/test/java/com/arangodb/ArangoDatabaseTest.java

@@ -662,11 +662,14 @@ void queryStats(ArangoDatabase db) {
         assertThat(cursor.getStats().getFiltered()).isNotNull();
         assertThat(cursor.getStats().getExecutionTime()).isNotNull();
         assertThat(cursor.getStats().getPeakMemoryUsage()).isNotNull();
-        if (isAtLeastVersion(3, 10)) {
-            assertThat(cursor.getStats().getCursorsCreated()).isNotNull();
-            assertThat(cursor.getStats().getCursorsRearmed()).isNotNull();
-            assertThat(cursor.getStats().getCacheHits()).isNotNull();
-            assertThat(cursor.getStats().getCacheMisses()).isNotNull();
+        assertThat(cursor.getStats().getCursorsCreated()).isNotNull();
+        assertThat(cursor.getStats().getCursorsRearmed()).isNotNull();
+        assertThat(cursor.getStats().getCacheHits()).isNotNull();
+        assertThat(cursor.getStats().getCacheMisses()).isNotNull();
+        assertThat(cursor.getStats().getIntermediateCommits()).isNotNull();
+        if (isAtLeastVersion(3, 12)) {
+            assertThat(cursor.getStats().getDocumentLookups()).isNotNull();
+            assertThat(cursor.getStats().getSeeks()).isNotNull();
         }
     }