Added the compact api for indexes

Author: panchasarapavan

.code-samples.meilisearch.yaml

@@ -852,3 +852,5 @@ export_post_1: |-
   indexes.put("*", ExportIndexFilter.builder().overrideSettings(true).build());
   ExportRequest request = ExportRequest.builder().url("TARGET_INSTANCE_URL").indexes(indexes).build();
   client.export(request);
+compact_index_1: |-
+  client.index("INDEX_NAME").compact();

src/main/java/com/meilisearch/sdk/Index.java

@@ -1295,4 +1295,19 @@ public TaskInfo updateEmbeddersSettings(Map<String, Embedder> embedders)
     public TaskInfo resetEmbeddersSettings() throws MeilisearchException {
         return this.settingsHandler.resetEmbedders(this.uid);
     }
+
+
+    /**
+     * Compacts the database for this index to reclaim unused space
+     *
+     * @return TaskInfo instance
+     * @throws MeilisearchException if an error occurs
+     * @see <a href="https://www.meilisearch.com/docs/reference/api/compact">API specification</a>
+     */
+    public TaskInfo compact() throws MeilisearchException {
+        return this.config.httpClient.post(
+            new URLBuilder("/indexes").addSubroute(this.uid).addSubroute("compact").getURL(),
+            null,
+            TaskInfo.class);
+    }
 }

src/test/java/com/meilisearch/integration/ClientTest.java

@@ -345,4 +345,35 @@ public void testTransientFieldExclusion() throws MeilisearchException {
                 InaccessibleObjectException.class, () -> gsonWithTransient.toJson(test));
         Assertions.assertDoesNotThrow(() -> gson.toJson(test));
     }
+
+    @Test
+    public void testCompactWithDocuments() throws Exception {
+        String indexUid = "testCompactWithDocuments";
+        Index index = createEmptyIndex(indexUid, this.primaryKey);
+
+        TaskInfo addTask =
+            index.addDocuments(
+                "[{"
+                    + "\"id\": 1,"
+                    + "\"title\": \"Document1\","
+                    + "\"description\": \"Test document 1\""
+                    + "},"
+                    + "{"
+                    + "\"id\": 2,"
+                    + "\"title\": \"Document2\","
+                    + "\"description\": \"Test document 2\""
+                    + "}]");
+        index.waitForTask(addTask.getTaskUid());
+
+        TaskInfo compactTask = index.compact();
+        client.waitForTask(compactTask.getTaskUid());
+        Task completedCompactTask = client.getTask(compactTask.getTaskUid());
+
+        assertThat(compactTask.getStatus(), is(equalTo(TaskStatus.ENQUEUED)));
+        assertThat(completedCompactTask.getType(), is(equalTo("indexCompaction")));
+        assertThat(completedCompactTask.getStatus(), is(equalTo(TaskStatus.SUCCEEDED)));
+
+        assertThat(index.getDocument("1", Movie.class).getTitle(), is(equalTo("Document1")));
+        assertThat(index.getDocument("2", Movie.class).getTitle(), is(equalTo("Document2")));
+    }
 }