high level REST api: cancel task (#30745)

* Initial commit of rest high level exposure of cancel task

* fix javadocs

* address some code review comments

* update branch to use tasks namespace instead of cluster

* High-level client: list tasks failure to not lose nodeId

This commit reworks testing for `ListTasksResponse` so that random
fields insertion can be tested and xcontent equivalence can be checked
too. Proper exclusions need to be configured, and failures need to be
tested separately. This helped finding a little problem, whenever there
is a node failure returned, the nodeId was lost as it was never printed
out as part of the exception toXContent.

* added comment

* merge from master

* re-work CancelTasksResponseTests to separate XContent failure cases from non-failure cases

* remove duplication of logic in parser creation

* code review changes

* refactor TasksClient to support RequestOptions

* add tests for parent task id

* address final PR review comments, mostly formatting and such
This commit is contained in:
Paul Sanwald 2018-06-07 14:02:23 -07:00 committed by GitHub
parent e481b860a1
commit e82e5cc2e8
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12 changed files with 442 additions and 19 deletions

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@ -29,6 +29,7 @@ import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.entity.ContentType;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.action.DocWriteRequest;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksRequest;
import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksRequest;
import org.elasticsearch.action.admin.cluster.repositories.delete.DeleteRepositoryRequest;
import org.elasticsearch.action.admin.cluster.repositories.get.GetRepositoriesRequest;
@ -108,6 +109,17 @@ final class RequestConverters {
// Contains only status utility methods
}
static Request cancelTasks(CancelTasksRequest cancelTasksRequest) {
Request request = new Request(HttpPost.METHOD_NAME, "/_tasks/_cancel");
Params params = new Params(request);
params.withTimeout(cancelTasksRequest.getTimeout())
.withTaskId(cancelTasksRequest.getTaskId())
.withNodes(cancelTasksRequest.getNodes())
.withParentTaskId(cancelTasksRequest.getParentTaskId())
.withActions(cancelTasksRequest.getActions());
return request;
}
static Request delete(DeleteRequest deleteRequest) {
String endpoint = endpoint(deleteRequest.index(), deleteRequest.type(), deleteRequest.id());
Request request = new Request(HttpDelete.METHOD_NAME, endpoint);
@ -1070,6 +1082,13 @@ final class RequestConverters {
return this;
}
Params withTaskId(TaskId taskId) {
if (taskId != null && taskId.isSet()) {
return putParam("task_id", taskId.toString());
}
return this;
}
Params withParentTaskId(TaskId parentTaskId) {
if (parentTaskId != null && parentTaskId.isSet()) {
return putParam("parent_task_id", parentTaskId.toString());

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@ -20,6 +20,8 @@
package org.elasticsearch.client;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksRequest;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksResponse;
import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksRequest;
import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksResponse;
@ -65,4 +67,45 @@ public final class TasksClient {
restHighLevelClient.performRequestAsyncAndParseEntity(request, RequestConverters::listTasks, options,
ListTasksResponse::fromXContent, listener, emptySet());
}
/**
* Cancel one or more cluster tasks using the Task Management API.
*
* See
* <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/tasks.html"> Task Management API on elastic.co</a>
* @param cancelTasksRequest 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 CancelTasksResponse cancel(CancelTasksRequest cancelTasksRequest, RequestOptions options ) throws IOException {
return restHighLevelClient.performRequestAndParseEntity(
cancelTasksRequest,
RequestConverters::cancelTasks,
options,
parser -> CancelTasksResponse.fromXContent(parser),
emptySet()
);
}
/**
* Asynchronously cancel one or more cluster tasks using the Task Management API.
*
* See
* <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/tasks.html"> Task Management API on elastic.co</a>
* @param cancelTasksRequest 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 cancelAsync(CancelTasksRequest cancelTasksRequest, RequestOptions options, ActionListener<CancelTasksResponse> listener) {
restHighLevelClient.performRequestAsyncAndParseEntity(
cancelTasksRequest,
RequestConverters::cancelTasks,
options,
parser -> CancelTasksResponse.fromXContent(parser),
listener,
emptySet()
);
}
}

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@ -29,6 +29,8 @@ import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.util.EntityUtils;
import org.elasticsearch.action.ActionRequestValidationException;
import org.elasticsearch.action.DocWriteRequest;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksRequest;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksResponse;
import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksRequest;
import org.elasticsearch.action.admin.cluster.repositories.delete.DeleteRepositoryRequest;
import org.elasticsearch.action.admin.cluster.repositories.get.GetRepositoriesRequest;
@ -1587,6 +1589,23 @@ public class RequestConvertersTests extends ESTestCase {
assertEquals(expectedParams, request.getParameters());
}
public void testCancelTasks() {
CancelTasksRequest request = new CancelTasksRequest();
Map<String, String> expectedParams = new HashMap<>();
TaskId taskId = new TaskId(randomAlphaOfLength(5), randomNonNegativeLong());
TaskId parentTaskId = new TaskId(randomAlphaOfLength(5), randomNonNegativeLong());
request.setTaskId(taskId);
request.setParentTaskId(parentTaskId);
expectedParams.put("task_id", taskId.toString());
expectedParams.put("parent_task_id", parentTaskId.toString());
Request httpRequest = RequestConverters.cancelTasks(request);
assertThat(httpRequest, notNullValue());
assertThat(httpRequest.getMethod(), equalTo(HttpPost.METHOD_NAME));
assertThat(httpRequest.getEntity(), nullValue());
assertThat(httpRequest.getEndpoint(), equalTo("/_tasks/_cancel"));
assertThat(httpRequest.getParameters(), equalTo(expectedParams));
}
public void testListTasks() {
{
ListTasksRequest request = new ListTasksRequest();

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@ -19,9 +19,12 @@
package org.elasticsearch.client;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksRequest;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksResponse;
import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksRequest;
import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksResponse;
import org.elasticsearch.action.admin.cluster.node.tasks.list.TaskGroup;
import org.elasticsearch.tasks.TaskId;
import org.elasticsearch.tasks.TaskInfo;
import java.io.IOException;
@ -58,4 +61,26 @@ public class TasksIT extends ESRestHighLevelClientTestCase {
assertTrue("List tasks were not found", listTasksFound);
}
public void testCancelTasks() throws IOException {
ListTasksRequest listRequest = new ListTasksRequest();
ListTasksResponse listResponse = execute(
listRequest,
highLevelClient().tasks()::list,
highLevelClient().tasks()::listAsync
);
// in this case, probably no task will actually be cancelled.
// this is ok, that case is covered in TasksIT.testTasksCancellation
TaskInfo firstTask = listResponse.getTasks().get(0);
String node = listResponse.getPerNodeTasks().keySet().iterator().next();
CancelTasksRequest cancelTasksRequest = new CancelTasksRequest();
cancelTasksRequest.setTaskId(new TaskId(node, firstTask.getId()));
cancelTasksRequest.setReason("testreason");
CancelTasksResponse response = execute(cancelTasksRequest,
highLevelClient().tasks()::cancel,
highLevelClient().tasks()::cancelAsync);
// Since the task may or may not have been cancelled, assert that we received a response only
// The actual testing of task cancellation is covered by TasksIT.testTasksCancellation
assertThat(response, notNullValue());
}
}

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@ -178,4 +178,5 @@ public class ClusterClientDocumentationIT extends ESRestHighLevelClientTestCase
assertTrue(latch.await(30L, TimeUnit.SECONDS));
}
}
}

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@ -23,6 +23,8 @@ import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.LatchedActionListener;
import org.elasticsearch.action.TaskOperationFailure;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksRequest;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksResponse;
import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksRequest;
import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksResponse;
import org.elasticsearch.action.admin.cluster.node.tasks.list.TaskGroup;
@ -146,4 +148,74 @@ public class TasksClientDocumentationIT extends ESRestHighLevelClientTestCase {
assertTrue(latch.await(30L, TimeUnit.SECONDS));
}
}
public void testCancelTasks() throws IOException {
RestHighLevelClient client = highLevelClient();
{
// tag::cancel-tasks-request
CancelTasksRequest request = new CancelTasksRequest();
// end::cancel-tasks-request
// tag::cancel-tasks-request-filter
request.setTaskId(new TaskId("nodeId1", 42)); //<1>
request.setActions("cluster:*"); // <2>
request.setNodes("nodeId1", "nodeId2"); // <3>
// end::cancel-tasks-request-filter
}
CancelTasksRequest request = new CancelTasksRequest();
request.setTaskId(TaskId.EMPTY_TASK_ID);
// tag::cancel-tasks-execute
CancelTasksResponse response = client.tasks().cancel(request, RequestOptions.DEFAULT);
// end::cancel-tasks-execute
assertThat(response, notNullValue());
// tag::cancel-tasks-response-tasks
List<TaskInfo> tasks = response.getTasks(); // <1>
// end::cancel-tasks-response-tasks
// tag::cancel-tasks-response-failures
List<ElasticsearchException> nodeFailures = response.getNodeFailures(); // <1>
List<TaskOperationFailure> taskFailures = response.getTaskFailures(); // <2>
// end::-tasks-response-failures
assertThat(response.getNodeFailures(), equalTo(emptyList()));
assertThat(response.getTaskFailures(), equalTo(emptyList()));
}
public void testAsyncCancelTasks() throws InterruptedException {
RestHighLevelClient client = highLevelClient();
{
CancelTasksRequest request = new CancelTasksRequest();
// tag::cancel-tasks-execute-listener
ActionListener<CancelTasksResponse> listener =
new ActionListener<CancelTasksResponse>() {
@Override
public void onResponse(CancelTasksResponse response) {
// <1>
}
@Override
public void onFailure(Exception e) {
// <2>
}
};
// end::cancel-tasks-execute-listener
// Replace the empty listener by a blocking listener in test
final CountDownLatch latch = new CountDownLatch(1);
listener = new LatchedActionListener<>(listener, latch);
// tag::cancel-tasks-execute-async
client.tasks().cancelAsync(request, RequestOptions.DEFAULT, listener); // <1>
// end::cancel-tasks-execute-async
assertTrue(latch.await(30L, TimeUnit.SECONDS));
}
}
}

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@ -140,5 +140,7 @@ include::snapshot/verify_repository.asciidoc[]
The Java High Level REST Client supports the following Tasks APIs:
* <<java-rest-high-tasks-list>>
* <<java-rest-high-cluster-cancel-tasks>>
include::tasks/list_tasks.asciidoc[]
include::tasks/cancel_tasks.asciidoc[]

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@ -0,0 +1,82 @@
[[java-rest-high-cluster-cancel-tasks]]
=== Cancel Tasks API
The Cancel Tasks API allows cancellation of a currently running task.
==== Cancel Tasks Request
A `CancelTasksRequest`:
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/TasksClientDocumentationIT.java[cancel-tasks-request]
--------------------------------------------------
There are no required parameters. The task cancellation command supports the same
task selection parameters as the list tasks command.
==== Parameters
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/TasksClientDocumentationIT.java[list-tasks-request-filter]
--------------------------------------------------
<1> Cancel a task
<2> Cancel only cluster-related tasks
<3> Cancel all tasks running on nodes nodeId1 and nodeId2
==== Synchronous Execution
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/TasksClientDocumentationIT.java[list-tasks-execute]
--------------------------------------------------
==== Asynchronous Execution
The asynchronous execution requires `CancelTasksRequest` instance and an
`ActionListener` instance to be passed to the asynchronous method:
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/TasksClientDocumentationIT.java[cancel-tasks-execute-async]
--------------------------------------------------
<1> The `CancelTasksRequest` to execute and the `ActionListener` to use
when the execution completes
The asynchronous method does not block and returns immediately. Once it is
completed the `ActionListener` is called back using the `onResponse` method
if the execution successfully completed or using the `onFailure` method if
it failed.
A typical listener for `CancelTasksResponse` looks like:
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/TasksClientDocumentationIT.java[cancel-tasks-execute-listener]
--------------------------------------------------
<1> Called when the execution is successfully completed. The response is
provided as an argument
<2> Called in case of a failure. The raised exception is provided as an argument
==== Cancel Tasks Response
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/TasksClientDocumentationIT.java[list-tasks-response-tasks]
--------------------------------------------------
<1> List of cancelled tasks
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/TasksClientDocumentationIT.java[list-tasks-response-calc]
--------------------------------------------------
<1> List of cancelled tasks grouped by a node
<2> List of cancelled tasks grouped by a parent task
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/TasksClientDocumentationIT.java[list-tasks-response-failures]
--------------------------------------------------
<1> List of node failures
<2> List of task cancellation failures

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@ -19,23 +19,48 @@
package org.elasticsearch.action.admin.cluster.node.tasks.cancel;
import org.elasticsearch.action.FailedNodeException;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.TaskOperationFailure;
import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksResponse;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.xcontent.ConstructingObjectParser;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.tasks.TaskInfo;
import java.io.IOException;
import java.util.List;
import static org.elasticsearch.common.xcontent.ConstructingObjectParser.optionalConstructorArg;
/**
* Returns the list of tasks that were cancelled
*/
public class CancelTasksResponse extends ListTasksResponse {
private static final ConstructingObjectParser<CancelTasksResponse, Void> PARSER =
setupParser("cancel_tasks_response", CancelTasksResponse::new);
public CancelTasksResponse() {
}
public CancelTasksResponse(List<TaskInfo> tasks, List<TaskOperationFailure> taskFailures, List<? extends FailedNodeException>
public CancelTasksResponse(List<TaskInfo> tasks, List<TaskOperationFailure> taskFailures, List<? extends ElasticsearchException>
nodeFailures) {
super(tasks, taskFailures, nodeFailures);
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
return super.toXContent(builder, params);
}
public static CancelTasksResponse fromXContent(XContentParser parser) {
return PARSER.apply(parser, null);
}
@Override
public String toString() {
return Strings.toString(this, true, true);
}
}

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@ -26,6 +26,7 @@ import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.cluster.node.DiscoveryNodes;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.TriFunction;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.ConstructingObjectParser;
@ -70,8 +71,14 @@ public class ListTasksResponse extends BaseTasksResponse implements ToXContentOb
this.tasks = tasks == null ? Collections.emptyList() : Collections.unmodifiableList(new ArrayList<>(tasks));
}
private static final ConstructingObjectParser<ListTasksResponse, Void> PARSER =
new ConstructingObjectParser<>("list_tasks_response", true,
protected static <T> ConstructingObjectParser<T, Void> setupParser(String name,
TriFunction<
List<TaskInfo>,
List<TaskOperationFailure>,
List<ElasticsearchException>,
T> ctor) {
ConstructingObjectParser<T, Void> parser = new ConstructingObjectParser<>(name, true,
constructingObjects -> {
int i = 0;
@SuppressWarnings("unchecked")
@ -80,16 +87,18 @@ public class ListTasksResponse extends BaseTasksResponse implements ToXContentOb
List<TaskOperationFailure> tasksFailures = (List<TaskOperationFailure>) constructingObjects[i++];
@SuppressWarnings("unchecked")
List<ElasticsearchException> nodeFailures = (List<ElasticsearchException>) constructingObjects[i];
return new ListTasksResponse(tasks, tasksFailures, nodeFailures);
return ctor.apply(tasks,tasksFailures, nodeFailures);
});
static {
PARSER.declareObjectArray(constructorArg(), TaskInfo.PARSER, new ParseField(TASKS));
PARSER.declareObjectArray(optionalConstructorArg(), (p, c) -> TaskOperationFailure.fromXContent(p), new ParseField(TASK_FAILURES));
PARSER.declareObjectArray(optionalConstructorArg(),
(parser, c) -> ElasticsearchException.fromXContent(parser), new ParseField(NODE_FAILURES));
parser.declareObjectArray(optionalConstructorArg(), TaskInfo.PARSER, new ParseField(TASKS));
parser.declareObjectArray(optionalConstructorArg(), (p, c) -> TaskOperationFailure.fromXContent(p), new ParseField(TASK_FAILURES));
parser.declareObjectArray(optionalConstructorArg(),
(p, c) -> ElasticsearchException.fromXContent(p), new ParseField(NODE_FAILURES));
return parser;
}
private static final ConstructingObjectParser<ListTasksResponse, Void> PARSER =
setupParser("list_tasks_response", ListTasksResponse::new);
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);

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@ -0,0 +1,116 @@
/*
* 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.
*/
package org.elasticsearch.tasks;
import org.elasticsearch.action.FailedNodeException;
import org.elasticsearch.action.TaskOperationFailure;
import org.elasticsearch.action.admin.cluster.node.tasks.cancel.CancelTasksResponse;
import org.elasticsearch.action.admin.cluster.node.tasks.list.ListTasksResponse;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.test.AbstractXContentTestCase;
import java.io.IOException;
import java.net.ConnectException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.function.Predicate;
import java.util.function.Supplier;
import static org.hamcrest.Matchers.equalTo;
public class CancelTasksResponseTests extends AbstractXContentTestCase<CancelTasksResponse> {
@Override
protected CancelTasksResponse createTestInstance() {
List<TaskInfo> randomTasks = randomTasks();
return new CancelTasksResponse(randomTasks, Collections.emptyList(), Collections.emptyList());
}
private static List<TaskInfo> randomTasks() {
List<TaskInfo> randomTasks = new ArrayList<>();
for (int i = 0; i < randomInt(10); i++) {
randomTasks.add(TaskInfoTests.randomTaskInfo());
}
return randomTasks;
}
@Override
protected Predicate<String> getRandomFieldsExcludeFilter() {
//status and headers hold arbitrary content, we can't inject random fields in them
return field -> field.endsWith("status") || field.endsWith("headers");
}
@Override
protected void assertEqualInstances(CancelTasksResponse expectedInstance, CancelTasksResponse newInstance) {
assertNotSame(expectedInstance, newInstance);
assertThat(newInstance.getTasks(), equalTo(expectedInstance.getTasks()));
ListTasksResponseTests.assertOnNodeFailures(newInstance.getNodeFailures(), expectedInstance.getNodeFailures());
ListTasksResponseTests.assertOnTaskFailures(newInstance.getTaskFailures(), expectedInstance.getTaskFailures());
}
@Override
protected CancelTasksResponse doParseInstance(XContentParser parser) {
return CancelTasksResponse.fromXContent(parser);
}
@Override
protected boolean supportsUnknownFields() {
return true;
}
@Override
protected boolean assertToXContentEquivalence() {
return true;
}
/**
* Test parsing {@link ListTasksResponse} with inner failures as they don't support asserting on xcontent equivalence, given that
* exceptions are not parsed back as the same original class. We run the usual {@link AbstractXContentTestCase#testFromXContent()}
* without failures, and this other test with failures where we disable asserting on xcontent equivalence at the end.
*/
public void testFromXContentWithFailures() throws IOException {
Supplier<CancelTasksResponse> instanceSupplier = CancelTasksResponseTests::createTestInstanceWithFailures;
//with random fields insertion in the inner exceptions, some random stuff may be parsed back as metadata,
//but that does not bother our assertions, as we only want to test that we don't break.
boolean supportsUnknownFields = true;
//exceptions are not of the same type whenever parsed back
boolean assertToXContentEquivalence = false;
AbstractXContentTestCase.testFromXContent(NUMBER_OF_TEST_RUNS, instanceSupplier, supportsUnknownFields, Strings.EMPTY_ARRAY,
getRandomFieldsExcludeFilter(), this::createParser, this::doParseInstance,
this::assertEqualInstances, assertToXContentEquivalence);
}
private static CancelTasksResponse createTestInstanceWithFailures() {
int numNodeFailures = randomIntBetween(0, 3);
List<FailedNodeException> nodeFailures = new ArrayList<>(numNodeFailures);
for (int i = 0; i < numNodeFailures; i++) {
nodeFailures.add(new FailedNodeException(randomAlphaOfLength(5), "error message", new ConnectException()));
}
int numTaskFailures = randomIntBetween(0, 3);
List<TaskOperationFailure> taskFailures = new ArrayList<>(numTaskFailures);
for (int i = 0; i < numTaskFailures; i++) {
taskFailures.add(new TaskOperationFailure(randomAlphaOfLength(5), randomLong(), new IllegalStateException()));
}
return new CancelTasksResponse(randomTasks(), taskFailures, nodeFailures);
}
}

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@ -109,20 +109,30 @@ public class ListTasksResponseTests extends AbstractXContentTestCase<ListTasksRe
protected void assertEqualInstances(ListTasksResponse expectedInstance, ListTasksResponse newInstance) {
assertNotSame(expectedInstance, newInstance);
assertThat(newInstance.getTasks(), equalTo(expectedInstance.getTasks()));
assertThat(newInstance.getNodeFailures().size(), equalTo(expectedInstance.getNodeFailures().size()));
for (int i = 0; i < newInstance.getNodeFailures().size(); i++) {
ElasticsearchException newException = newInstance.getNodeFailures().get(i);
ElasticsearchException expectedException = expectedInstance.getNodeFailures().get(i);
assertOnNodeFailures(newInstance.getNodeFailures(), expectedInstance.getNodeFailures());
assertOnTaskFailures(newInstance.getTaskFailures(), expectedInstance.getTaskFailures());
}
protected static void assertOnNodeFailures(List<ElasticsearchException> nodeFailures,
List<ElasticsearchException> expectedFailures) {
assertThat(nodeFailures.size(), equalTo(expectedFailures.size()));
for (int i = 0; i < nodeFailures.size(); i++) {
ElasticsearchException newException = nodeFailures.get(i);
ElasticsearchException expectedException = expectedFailures.get(i);
assertThat(newException.getMetadata("es.node_id").get(0), equalTo(((FailedNodeException)expectedException).nodeId()));
assertThat(newException.getMessage(), equalTo("Elasticsearch exception [type=failed_node_exception, reason=error message]"));
assertThat(newException.getCause(), instanceOf(ElasticsearchException.class));
ElasticsearchException cause = (ElasticsearchException) newException.getCause();
assertThat(cause.getMessage(), equalTo("Elasticsearch exception [type=connect_exception, reason=null]"));
}
assertThat(newInstance.getTaskFailures().size(), equalTo(expectedInstance.getTaskFailures().size()));
for (int i = 0; i < newInstance.getTaskFailures().size(); i++) {
TaskOperationFailure newFailure = newInstance.getTaskFailures().get(i);
TaskOperationFailure expectedFailure = expectedInstance.getTaskFailures().get(i);
}
protected static void assertOnTaskFailures(List<TaskOperationFailure> taskFailures,
List<TaskOperationFailure> expectedFailures) {
assertThat(taskFailures.size(), equalTo(expectedFailures.size()));
for (int i = 0; i < taskFailures.size(); i++) {
TaskOperationFailure newFailure = taskFailures.get(i);
TaskOperationFailure expectedFailure = expectedFailures.get(i);
assertThat(newFailure.getNodeId(), equalTo(expectedFailure.getNodeId()));
assertThat(newFailure.getTaskId(), equalTo(expectedFailure.getTaskId()));
assertThat(newFailure.getStatus(), equalTo(expectedFailure.getStatus()));