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Add get stored script and delete stored script to high level REST API
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Relates to #27205

(cherry picked from commit 04e4e44)
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Vladimir Dolzhenko committed Jun 19, 2018
1 parent e2e59a8 commit 70c14a5
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Showing 16 changed files with 789 additions and 46 deletions.
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import org.elasticsearch.action.admin.cluster.repositories.put.PutRepositoryRequest;
import org.elasticsearch.action.admin.cluster.repositories.verify.VerifyRepositoryRequest;
import org.elasticsearch.action.admin.cluster.settings.ClusterUpdateSettingsRequest;
import org.elasticsearch.action.admin.cluster.storedscripts.DeleteStoredScriptRequest;
import org.elasticsearch.action.admin.cluster.storedscripts.GetStoredScriptRequest;
import org.elasticsearch.action.admin.indices.alias.IndicesAliasesRequest;
import org.elasticsearch.action.admin.indices.alias.get.GetAliasesRequest;
import org.elasticsearch.action.admin.indices.cache.clear.ClearIndicesCacheRequest;
Expand Down Expand Up @@ -903,6 +905,23 @@ static Request getAlias(GetAliasesRequest getAliasesRequest) {
return request;
}

static Request getScript(GetStoredScriptRequest getStoredScriptRequest) {
String endpoint = new EndpointBuilder().addPathPartAsIs("_scripts").addPathPart(getStoredScriptRequest.id()).build();
Request request = new Request(HttpGet.METHOD_NAME, endpoint);
Params params = new Params(request);
params.withMasterTimeout(getStoredScriptRequest.masterNodeTimeout());
return request;
}

static Request deleteScript(DeleteStoredScriptRequest deleteStoredScriptRequest) {
String endpoint = new EndpointBuilder().addPathPartAsIs("_scripts").addPathPart(deleteStoredScriptRequest.id()).build();
Request request = new Request(HttpDelete.METHOD_NAME, endpoint);
Params params = new Params(request);
params.withTimeout(deleteStoredScriptRequest.timeout());
params.withMasterTimeout(deleteStoredScriptRequest.masterNodeTimeout());
return request;
}

private static HttpEntity createEntity(ToXContent toXContent, XContentType xContentType) throws IOException {
BytesRef source = XContentHelper.toXContent(toXContent, xContentType, false).toBytesRef();
return new ByteArrayEntity(source.bytes, source.offset, source.length, createContentType(xContentType));
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import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.ActionRequest;
import org.elasticsearch.action.ActionRequestValidationException;
import org.elasticsearch.action.admin.cluster.storedscripts.DeleteStoredScriptRequest;
import org.elasticsearch.action.admin.cluster.storedscripts.DeleteStoredScriptResponse;
import org.elasticsearch.action.admin.cluster.storedscripts.GetStoredScriptRequest;
import org.elasticsearch.action.admin.cluster.storedscripts.GetStoredScriptResponse;
import org.elasticsearch.action.bulk.BulkRequest;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.delete.DeleteRequest;
Expand Down Expand Up @@ -963,6 +967,62 @@ public final FieldCapabilitiesResponse fieldCaps(FieldCapabilitiesRequest fieldC
FieldCapabilitiesResponse::fromXContent, emptySet());
}

/**
* Get stored script by id.
* See <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-scripting-using.html">
* How to use scripts on elastic.co</a>
* @param request the request
* @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
* @return the response
* @throws IOException in case there is a problem sending the request or parsing back the response
*/
public GetStoredScriptResponse getScript(GetStoredScriptRequest request, RequestOptions options) throws IOException {
return performRequestAndParseEntity(request, RequestConverters::getScript, options,
GetStoredScriptResponse::fromXContent, emptySet());
}

/**
* Asynchronously get stored script by id.
* See <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-scripting-using.html">
* How to use scripts on elastic.co</a>
* @param request 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
*/
public void getScriptAsync(GetStoredScriptRequest request, RequestOptions options,
ActionListener<GetStoredScriptResponse> listener) {
performRequestAsyncAndParseEntity(request, RequestConverters::getScript, options,
GetStoredScriptResponse::fromXContent, listener, emptySet());
}

/**
* Delete stored script by id.
* See <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-scripting-using.html">
* How to use scripts on elastic.co</a>
* @param request the request
* @param options the request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
* @return the response
* @throws IOException in case there is a problem sending the request or parsing back the response
*/
public DeleteStoredScriptResponse deleteScript(DeleteStoredScriptRequest request, RequestOptions options) throws IOException {
return performRequestAndParseEntity(request, RequestConverters::deleteScript, options,
DeleteStoredScriptResponse::fromXContent, emptySet());
}

/**
* Asynchronously delete stored script by id.
* See <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-scripting-using.html">
* How to use scripts on elastic.co</a>
* @param request 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
*/
public void deleteScriptAsync(DeleteStoredScriptRequest request, RequestOptions options,
ActionListener<DeleteStoredScriptResponse> listener) {
performRequestAsyncAndParseEntity(request, RequestConverters::deleteScript, options,
DeleteStoredScriptResponse::fromXContent, listener, emptySet());
}

/**
* Asynchronously executes a request using the Field Capabilities API.
* See <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/search-field-caps.html">Field Capabilities API
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Expand Up @@ -37,6 +37,8 @@
import org.elasticsearch.action.admin.cluster.repositories.put.PutRepositoryRequest;
import org.elasticsearch.action.admin.cluster.repositories.verify.VerifyRepositoryRequest;
import org.elasticsearch.action.admin.cluster.settings.ClusterUpdateSettingsRequest;
import org.elasticsearch.action.admin.cluster.storedscripts.DeleteStoredScriptRequest;
import org.elasticsearch.action.admin.cluster.storedscripts.GetStoredScriptRequest;
import org.elasticsearch.action.admin.indices.alias.Alias;
import org.elasticsearch.action.admin.indices.alias.IndicesAliasesRequest;
import org.elasticsearch.action.admin.indices.alias.IndicesAliasesRequest.AliasActions;
Expand Down Expand Up @@ -1981,6 +1983,32 @@ public void testGetTemplateRequest() throws Exception {
assertThat(request.getEntity(), nullValue());
}

public void testGetScriptRequest() {
GetStoredScriptRequest getStoredScriptRequest = new GetStoredScriptRequest("x-script");
Map<String, String> expectedParams = new HashMap<>();
setRandomMasterTimeout(getStoredScriptRequest, expectedParams);

Request request = RequestConverters.getScript(getStoredScriptRequest);
assertThat(request.getEndpoint(), equalTo("/_scripts/" + getStoredScriptRequest.id()));
assertThat(request.getMethod(), equalTo(HttpGet.METHOD_NAME));
assertThat(request.getParameters(), equalTo(expectedParams));
assertThat(request.getEntity(), nullValue());
}

public void testDeleteScriptRequest() {
DeleteStoredScriptRequest deleteStoredScriptRequest = new DeleteStoredScriptRequest("x-script");

Map<String, String> expectedParams = new HashMap<>();
setRandomTimeout(deleteStoredScriptRequest::timeout, AcknowledgedRequest.DEFAULT_ACK_TIMEOUT, expectedParams);
setRandomMasterTimeout(deleteStoredScriptRequest, expectedParams);

Request request = RequestConverters.deleteScript(deleteStoredScriptRequest);
assertThat(request.getEndpoint(), equalTo("/_scripts/" + deleteStoredScriptRequest.id()));
assertThat(request.getMethod(), equalTo(HttpDelete.METHOD_NAME));
assertThat(request.getParameters(), equalTo(expectedParams));
assertThat(request.getEntity(), nullValue());
}

private static void assertToXContentBody(ToXContent expectedBody, HttpEntity actualEntity) throws IOException {
BytesReference expectedBytes = XContentHelper.toXContent(expectedBody, REQUEST_BODY_CONTENT_TYPE, false);
assertEquals(XContentType.JSON.mediaTypeWithoutParameters(), actualEntity.getContentType().getValue());
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@@ -0,0 +1,105 @@
package org.elasticsearch.client;/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/


import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.util.EntityUtils;
import org.elasticsearch.ElasticsearchStatusException;
import org.elasticsearch.action.admin.cluster.storedscripts.DeleteStoredScriptRequest;
import org.elasticsearch.action.admin.cluster.storedscripts.DeleteStoredScriptResponse;
import org.elasticsearch.action.admin.cluster.storedscripts.GetStoredScriptRequest;
import org.elasticsearch.action.admin.cluster.storedscripts.GetStoredScriptResponse;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.rest.RestStatus;
import org.elasticsearch.script.Script;
import org.elasticsearch.script.StoredScriptSource;

import java.util.Collections;

import static java.util.Collections.emptyMap;
import static org.elasticsearch.common.xcontent.XContentFactory.jsonBuilder;
import static org.hamcrest.Matchers.equalTo;

public class StoredScriptsIT extends ESRestHighLevelClientTestCase {

final String id = "calculate-score";

public void testGetStoredScript() throws Exception {
final StoredScriptSource scriptSource =
new StoredScriptSource("painless",
"Math.log(_score * 2) + params.my_modifier",
Collections.singletonMap(Script.CONTENT_TYPE_OPTION, XContentType.JSON.mediaType()));

final String script = Strings.toString(scriptSource.toXContent(jsonBuilder(), ToXContent.EMPTY_PARAMS));
// TODO: change to HighLevel PutStoredScriptRequest when it will be ready
// so far - using low-level REST API
Response putResponse =
adminClient()
.performRequest("PUT", "/_scripts/calculate-score", emptyMap(),
new StringEntity("{\"script\":" + script + "}",
ContentType.APPLICATION_JSON));
assertEquals(putResponse.getStatusLine().getReasonPhrase(), 200, putResponse.getStatusLine().getStatusCode());
assertEquals("{\"acknowledged\":true}", EntityUtils.toString(putResponse.getEntity()));

GetStoredScriptRequest getRequest = new GetStoredScriptRequest("calculate-score");
getRequest.masterNodeTimeout("50s");

GetStoredScriptResponse getResponse = execute(getRequest, highLevelClient()::getScript,
highLevelClient()::getScriptAsync);

assertThat(getResponse.getSource(), equalTo(scriptSource));
}

public void testDeleteStoredScript() throws Exception {
final StoredScriptSource scriptSource =
new StoredScriptSource("painless",
"Math.log(_score * 2) + params.my_modifier",
Collections.singletonMap(Script.CONTENT_TYPE_OPTION, XContentType.JSON.mediaType()));

final String script = Strings.toString(scriptSource.toXContent(jsonBuilder(), ToXContent.EMPTY_PARAMS));
// TODO: change to HighLevel PutStoredScriptRequest when it will be ready
// so far - using low-level REST API
Response putResponse =
adminClient()
.performRequest("PUT", "/_scripts/" + id, emptyMap(),
new StringEntity("{\"script\":" + script + "}",
ContentType.APPLICATION_JSON));
assertEquals(putResponse.getStatusLine().getReasonPhrase(), 200, putResponse.getStatusLine().getStatusCode());
assertEquals("{\"acknowledged\":true}", EntityUtils.toString(putResponse.getEntity()));

DeleteStoredScriptRequest deleteRequest = new DeleteStoredScriptRequest(id);
deleteRequest.masterNodeTimeout("50s");
deleteRequest.timeout("50s");

DeleteStoredScriptResponse deleteResponse = execute(deleteRequest, highLevelClient()::deleteScript,
highLevelClient()::deleteScriptAsync);

assertThat(deleteResponse.isAcknowledged(), equalTo(true));

GetStoredScriptRequest getRequest = new GetStoredScriptRequest(id);

final ElasticsearchStatusException statusException = expectThrows(ElasticsearchStatusException.class,
() -> execute(getRequest, highLevelClient()::getScript,
highLevelClient()::getScriptAsync));
assertThat(statusException.status(), equalTo(RestStatus.NOT_FOUND));
}
}
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