Add changes for Create PIT and Delete PIT rest layer and rest high level client

client/rest-high-level/src/main/java/org/opensearch/client/RequestConverters.java

@@ -54,6 +54,8 @@
 import org.opensearch.action.get.MultiGetRequest;
 import org.opensearch.action.index.IndexRequest;
 import org.opensearch.action.search.ClearScrollRequest;
+import org.opensearch.action.search.CreatePitRequest;
+import org.opensearch.action.search.DeletePitRequest;
 import org.opensearch.action.search.MultiSearchRequest;
 import org.opensearch.action.search.SearchRequest;
 import org.opensearch.action.search.SearchScrollRequest;
@@ -92,6 +94,7 @@
 import org.opensearch.index.reindex.ReindexRequest;
 import org.opensearch.index.reindex.UpdateByQueryRequest;
 import org.opensearch.index.seqno.SequenceNumbers;
+import org.opensearch.rest.action.search.RestCreatePitAction;
 import org.opensearch.rest.action.search.RestSearchAction;
 import org.opensearch.script.mustache.MultiSearchTemplateRequest;
 import org.opensearch.script.mustache.SearchTemplateRequest;
@@ -433,9 +436,19 @@ static void addSearchRequestParams(Params params, SearchRequest searchRequest) {
         params.putParam(RestSearchAction.TYPED_KEYS_PARAM, "true");
         params.withRouting(searchRequest.routing());
         params.withPreference(searchRequest.preference());
-        params.withIndicesOptions(searchRequest.indicesOptions());
+        if (searchRequest.pointInTimeBuilder() == null) {
+            params.withIndicesOptions(searchRequest.indicesOptions());
+        }
         params.withSearchType(searchRequest.searchType().name().toLowerCase(Locale.ROOT));
-        params.putParam("ccs_minimize_roundtrips", Boolean.toString(searchRequest.isCcsMinimizeRoundtrips()));
+        /**
+         * Merging search responses as part of CCS flow to reduce roundtrips is not supported for point in time -
+         * refer to org.opensearch.action.search.SearchResponseMerger
+         */
+        if (searchRequest.pointInTimeBuilder() != null) {
+            params.putParam("ccs_minimize_roundtrips", "false");
+        } else {
+            params.putParam("ccs_minimize_roundtrips", Boolean.toString(searchRequest.isCcsMinimizeRoundtrips()));
+        }
         if (searchRequest.getPreFilterShardSize() != null) {
             params.putParam("pre_filter_shard_size", Integer.toString(searchRequest.getPreFilterShardSize()));
         }
@@ -464,6 +477,28 @@ static Request clearScroll(ClearScrollRequest clearScrollRequest) throws IOExcep
         return request;
     }
 
+    static Request createPit(CreatePitRequest createPitRequest) throws IOException {
+        Params params = new Params();
+        params.putParam(RestCreatePitAction.ALLOW_PARTIAL_PIT_CREATION, Boolean.toString(createPitRequest.shouldAllowPartialPitCreation()));
+        params.putParam(RestCreatePitAction.KEEP_ALIVE, createPitRequest.getKeepAlive());
+        params.withIndicesOptions(createPitRequest.indicesOptions());
+        Request request = new Request(HttpPost.METHOD_NAME, endpoint(createPitRequest.indices(), "_search/point_in_time"));
+        request.addParameters(params.asMap());
+        request.setEntity(createEntity(createPitRequest, REQUEST_BODY_CONTENT_TYPE));
+        return request;
+    }
+
+    static Request deletePit(DeletePitRequest deletePitRequest) throws IOException {
+        Request request = new Request(HttpDelete.METHOD_NAME, "/_search/point_in_time");
+        request.setEntity(createEntity(deletePitRequest, REQUEST_BODY_CONTENT_TYPE));
+        return request;
+    }
+
+    static Request deleteAllPits(DeletePitRequest deletePitRequest) {
+        Request request = new Request(HttpDelete.METHOD_NAME, "/_search/point_in_time/_all");
+        return request;
+    }
+
     static Request multiSearch(MultiSearchRequest multiSearchRequest) throws IOException {
         Request request = new Request(HttpPost.METHOD_NAME, "/_msearch");
 

client/rest-high-level/src/main/java/org/opensearch/client/RestHighLevelClient.java

@@ -59,6 +59,10 @@
 import org.opensearch.action.index.IndexResponse;
 import org.opensearch.action.search.ClearScrollRequest;
 import org.opensearch.action.search.ClearScrollResponse;
+import org.opensearch.action.search.CreatePitRequest;
+import org.opensearch.action.search.CreatePitResponse;
+import org.opensearch.action.search.DeletePitRequest;
+import org.opensearch.action.search.DeletePitResponse;
 import org.opensearch.action.search.MultiSearchRequest;
 import org.opensearch.action.search.MultiSearchResponse;
 import org.opensearch.action.search.SearchRequest;
@@ -1256,6 +1260,126 @@ public final Cancellable scrollAsync(
         );
     }
 
+    /**
+     * Create PIT context using create PIT API
+     *
+     * @param createPitRequest the request
+     * @param options          the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
+     * @return the response
+     */
+    public final CreatePitResponse createPit(CreatePitRequest createPitRequest, RequestOptions options) throws IOException {
+        return performRequestAndParseEntity(
+            createPitRequest,
+            RequestConverters::createPit,
+            options,
+            CreatePitResponse::fromXContent,
+            emptySet()
+        );
+    }
+
+    /**
+     * Asynchronously Create PIT context using create PIT API
+     *
+     * @param createPitRequest the request
+     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
+     * @param listener the listener to be notified upon request completion
+     * @return the response
+     */
+    public final Cancellable createPitAsync(
+        CreatePitRequest createPitRequest,
+        RequestOptions options,
+        ActionListener<CreatePitResponse> listener
+    ) {
+        return performRequestAsyncAndParseEntity(
+            createPitRequest,
+            RequestConverters::createPit,
+            options,
+            CreatePitResponse::fromXContent,
+            listener,
+            emptySet()
+        );
+    }
+
+    /**
+     * Delete point in time searches using delete PIT API
+     *
+     * @param deletePitRequest the request
+     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
+     * @return the response
+     */
+    public final DeletePitResponse deletePit(DeletePitRequest deletePitRequest, RequestOptions options) throws IOException {
+        return performRequestAndParseEntity(
+            deletePitRequest,
+            RequestConverters::deletePit,
+            options,
+            DeletePitResponse::fromXContent,
+            emptySet()
+        );
+    }
+
+    /**
+     * Asynchronously Delete point in time searches using delete PIT API
+     *
+     * @param deletePitRequest the request
+     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
+     * @param listener the listener to be notified upon request completion
+     * @return the response
+     */
+    public final Cancellable deletePitAsync(
+        DeletePitRequest deletePitRequest,
+        RequestOptions options,
+        ActionListener<DeletePitResponse> listener
+    ) {
+        return performRequestAsyncAndParseEntity(
+            deletePitRequest,
+            RequestConverters::deletePit,
+            options,
+            DeletePitResponse::fromXContent,
+            listener,
+            emptySet()
+        );
+    }
+
+    /**
+     * Delete all point in time searches using delete all PITs API
+     *
+     * @param deletePitRequest the request
+     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
+     * @return the response
+     */
+    public final DeletePitResponse deleteAllPits(DeletePitRequest deletePitRequest, RequestOptions options) throws IOException {
+        return performRequestAndParseEntity(
+            deletePitRequest,
+            RequestConverters::deleteAllPits,
+            options,
+            DeletePitResponse::fromXContent,
+            emptySet()
+        );
+    }
+
+    /**
+     * Asynchronously Delete all point in time searches using delete all PITs API
+     *
+     * @param deletePitRequest the request
+     * @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
+     * @param listener the listener to be notified upon request completion
+     * @return the response
+     */
+    public final Cancellable deleteAllPitsAsync(
+        DeletePitRequest deletePitRequest,
+        RequestOptions options,
+        ActionListener<DeletePitResponse> listener
+    ) {
+        return performRequestAsyncAndParseEntity(
+            deletePitRequest,
+            RequestConverters::deleteAllPits,
+            options,
+            DeletePitResponse::fromXContent,
+            listener,
+            emptySet()
+        );
+    }
+
     /**
      * Clears one or more scroll ids using the Clear Scroll API.
      *

client/rest-high-level/src/test/java/org/opensearch/client/PitIT.java

@@ -0,0 +1,85 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ */
+
+package org.opensearch.client;
+
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.client.methods.HttpPut;
+import org.junit.Before;
+import org.opensearch.action.search.CreatePitRequest;
+import org.opensearch.action.search.CreatePitResponse;
+import org.opensearch.action.search.DeletePitInfo;
+import org.opensearch.action.search.DeletePitRequest;
+import org.opensearch.action.search.DeletePitResponse;
+import org.opensearch.common.unit.TimeValue;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Tests point in time API with rest high level client
+ */
+public class PitIT extends OpenSearchRestHighLevelClientTestCase {
+
+    @Before
+    public void indexDocuments() throws IOException {
+        Request doc1 = new Request(HttpPut.METHOD_NAME, "/index/_doc/1");
+        doc1.setJsonEntity("{\"type\":\"type1\", \"id\":1, \"num\":10, \"num2\":50}");
+        client().performRequest(doc1);
+        Request doc2 = new Request(HttpPut.METHOD_NAME, "/index/_doc/2");
+        doc2.setJsonEntity("{\"type\":\"type1\", \"id\":2, \"num\":20, \"num2\":40}");
+        client().performRequest(doc2);
+        Request doc3 = new Request(HttpPut.METHOD_NAME, "/index/_doc/3");
+        doc3.setJsonEntity("{\"type\":\"type1\", \"id\":3, \"num\":50, \"num2\":35}");
+        client().performRequest(doc3);
+        Request doc4 = new Request(HttpPut.METHOD_NAME, "/index/_doc/4");
+        doc4.setJsonEntity("{\"type\":\"type2\", \"id\":4, \"num\":100, \"num2\":10}");
+        client().performRequest(doc4);
+        Request doc5 = new Request(HttpPut.METHOD_NAME, "/index/_doc/5");
+        doc5.setJsonEntity("{\"type\":\"type2\", \"id\":5, \"num\":100, \"num2\":10}");
+        client().performRequest(doc5);
+        client().performRequest(new Request(HttpPost.METHOD_NAME, "/_refresh"));
+    }
+
+    public void testCreatePit() throws IOException {
+        CreatePitRequest pitRequest = new CreatePitRequest(new TimeValue(1, TimeUnit.DAYS), true, "index");
+        CreatePitResponse pitResponse = execute(pitRequest, highLevelClient()::createPit, highLevelClient()::createPitAsync);
+        assertTrue(pitResponse.getId() != null);
+        assertEquals(1, pitResponse.getTotalShards());
+        assertEquals(1, pitResponse.getSuccessfulShards());
+        assertEquals(0, pitResponse.getFailedShards());
+        assertEquals(0, pitResponse.getSkippedShards());
+        List<String> pitIds = new ArrayList<>();
+        pitIds.add(pitResponse.getId());
+        DeletePitRequest deletePitRequest = new DeletePitRequest(pitIds);
+        DeletePitResponse deletePitResponse = execute(deletePitRequest, highLevelClient()::deletePit, highLevelClient()::deletePitAsync);
+        assertTrue(deletePitResponse.getDeletePitResults().get(0).isSuccessful());
+        assertTrue(deletePitResponse.getDeletePitResults().get(0).getPitId().equals(pitResponse.getId()));
+    }
+
+    public void testDeleteAllPits() throws IOException {
+        CreatePitRequest pitRequest = new CreatePitRequest(new TimeValue(1, TimeUnit.DAYS), true, "index");
+        CreatePitResponse pitResponse = execute(pitRequest, highLevelClient()::createPit, highLevelClient()::createPitAsync);
+        CreatePitResponse pitResponse1 = execute(pitRequest, highLevelClient()::createPit, highLevelClient()::createPitAsync);
+        assertTrue(pitResponse.getId() != null);
+        assertTrue(pitResponse1.getId() != null);
+        List<String> pitIds = new ArrayList<>();
+        pitIds.add("_all");
+        DeletePitRequest deletePitRequest = new DeletePitRequest(pitIds);
+        DeletePitResponse deletePitResponse = execute(
+            deletePitRequest,
+            highLevelClient()::deleteAllPits,
+            highLevelClient()::deleteAllPitsAsync
+        );
+        for (DeletePitInfo deletePitInfo : deletePitResponse.getDeletePitResults()) {
+            assertTrue(deletePitInfo.isSuccessful());
+        }
+    }
+}

client/rest-high-level/src/test/java/org/opensearch/client/RequestConvertersTests.java

@@ -53,6 +53,7 @@
 import org.opensearch.action.get.MultiGetRequest;
 import org.opensearch.action.index.IndexRequest;
 import org.opensearch.action.search.ClearScrollRequest;
+import org.opensearch.action.search.CreatePitRequest;
 import org.opensearch.action.search.MultiSearchRequest;
 import org.opensearch.action.search.SearchRequest;
 import org.opensearch.action.search.SearchScrollRequest;
@@ -131,6 +132,7 @@
 import java.util.Locale;
 import java.util.Map;
 import java.util.StringJoiner;
+import java.util.concurrent.TimeUnit;
 import java.util.function.BiFunction;
 import java.util.function.Consumer;
 import java.util.function.Function;
@@ -1303,6 +1305,27 @@ public void testClearScroll() throws IOException {
         assertEquals(REQUEST_BODY_CONTENT_TYPE.mediaTypeWithoutParameters(), request.getEntity().getContentType().getValue());
     }
 
+    public void testCreatePit() throws IOException {
+        String[] indices = randomIndicesNames(0, 5);
+        Map<String, String> expectedParams = new HashMap<>();
+        expectedParams.put("keep_alive", "1d");
+        expectedParams.put("allow_partial_pit_creation", "true");
+        CreatePitRequest createPitRequest = new CreatePitRequest(new TimeValue(1, TimeUnit.DAYS), true, indices);
+        setRandomIndicesOptions(createPitRequest::indicesOptions, createPitRequest::indicesOptions, expectedParams);
+        Request request = RequestConverters.createPit(createPitRequest);
+        StringJoiner endpoint = new StringJoiner("/", "/", "");
+        String index = String.join(",", indices);
+        if (Strings.hasLength(index)) {
+            endpoint.add(index);
+        }
+        endpoint.add("_search/point_in_time");
+        assertEquals(HttpPost.METHOD_NAME, request.getMethod());
+        assertEquals(endpoint.toString(), request.getEndpoint());
+        assertEquals(expectedParams, request.getParameters());
+        assertToXContentBody(createPitRequest, request.getEntity());
+        assertEquals(REQUEST_BODY_CONTENT_TYPE.mediaTypeWithoutParameters(), request.getEntity().getContentType().getValue());
+    }
+
     public void testSearchTemplate() throws Exception {
         // Create a random request.
         String[] indices = randomIndicesNames(0, 5);