HLRC: Add ML Get Records API (#33085)

Relates #29827
This commit is contained in:
Dimitris Athanasiou 2018-08-29 15:03:58 +01:00 committed by GitHub
parent 22415fa2de
commit a5b34c75b0
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12 changed files with 784 additions and 15 deletions

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@ -28,6 +28,7 @@ import org.elasticsearch.client.ml.CloseJobRequest;
import org.elasticsearch.client.ml.DeleteJobRequest;
import org.elasticsearch.client.ml.GetBucketsRequest;
import org.elasticsearch.client.ml.GetJobRequest;
import org.elasticsearch.client.ml.GetRecordsRequest;
import org.elasticsearch.client.ml.OpenJobRequest;
import org.elasticsearch.client.ml.PutJobRequest;
import org.elasticsearch.common.Strings;
@ -124,4 +125,18 @@ final class MLRequestConverters {
request.setEntity(createEntity(getBucketsRequest, REQUEST_BODY_CONTENT_TYPE));
return request;
}
static Request getRecords(GetRecordsRequest getRecordsRequest) throws IOException {
String endpoint = new EndpointBuilder()
.addPathPartAsIs("_xpack")
.addPathPartAsIs("ml")
.addPathPartAsIs("anomaly_detectors")
.addPathPart(getRecordsRequest.getJobId())
.addPathPartAsIs("results")
.addPathPartAsIs("records")
.build();
Request request = new Request(HttpGet.METHOD_NAME, endpoint);
request.setEntity(createEntity(getRecordsRequest, REQUEST_BODY_CONTENT_TYPE));
return request;
}
}

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@ -27,6 +27,8 @@ import org.elasticsearch.client.ml.GetBucketsRequest;
import org.elasticsearch.client.ml.GetBucketsResponse;
import org.elasticsearch.client.ml.GetJobRequest;
import org.elasticsearch.client.ml.GetJobResponse;
import org.elasticsearch.client.ml.GetRecordsRequest;
import org.elasticsearch.client.ml.GetRecordsResponse;
import org.elasticsearch.client.ml.OpenJobRequest;
import org.elasticsearch.client.ml.OpenJobResponse;
import org.elasticsearch.client.ml.PutJobRequest;
@ -285,4 +287,40 @@ public final class MachineLearningClient {
listener,
Collections.emptySet());
}
/**
* Gets the records for a Machine Learning Job.
* <p>
* For additional info
* see <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/ml-get-record.html">ML GET records documentation</a>
*
* @param request the request
* @param options Additional request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
*/
public GetRecordsResponse getRecords(GetRecordsRequest request, RequestOptions options) throws IOException {
return restHighLevelClient.performRequestAndParseEntity(request,
MLRequestConverters::getRecords,
options,
GetRecordsResponse::fromXContent,
Collections.emptySet());
}
/**
* Gets the records for a Machine Learning Job, notifies listener once the requested records are retrieved.
* <p>
* For additional info
* see <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/ml-get-record.html">ML GET records documentation</a>
*
* @param request the request
* @param options Additional request options (e.g. headers), use {@link RequestOptions#DEFAULT} if nothing needs to be customized
* @param listener Listener to be notified upon request completion
*/
public void getRecordsAsync(GetRecordsRequest request, RequestOptions options, ActionListener<GetRecordsResponse> listener) {
restHighLevelClient.performRequestAsyncAndParseEntity(request,
MLRequestConverters::getRecords,
options,
GetRecordsResponse::fromXContent,
listener,
Collections.emptySet());
}
}

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@ -0,0 +1,222 @@
/*
* 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.client.ml;
import org.elasticsearch.client.Validatable;
import org.elasticsearch.client.ml.job.config.Job;
import org.elasticsearch.client.ml.job.util.PageParams;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.xcontent.ObjectParser;
import org.elasticsearch.common.xcontent.ToXContentObject;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
import java.util.Objects;
/**
* A request to retrieve records of a given job
*/
public class GetRecordsRequest implements ToXContentObject, Validatable {
public static final ParseField EXCLUDE_INTERIM = new ParseField("exclude_interim");
public static final ParseField START = new ParseField("start");
public static final ParseField END = new ParseField("end");
public static final ParseField RECORD_SCORE = new ParseField("record_score");
public static final ParseField SORT = new ParseField("sort");
public static final ParseField DESCENDING = new ParseField("desc");
public static final ObjectParser<GetRecordsRequest, Void> PARSER = new ObjectParser<>("get_buckets_request", GetRecordsRequest::new);
static {
PARSER.declareString((request, jobId) -> request.jobId = jobId, Job.ID);
PARSER.declareBoolean(GetRecordsRequest::setExcludeInterim, EXCLUDE_INTERIM);
PARSER.declareStringOrNull(GetRecordsRequest::setStart, START);
PARSER.declareStringOrNull(GetRecordsRequest::setEnd, END);
PARSER.declareObject(GetRecordsRequest::setPageParams, PageParams.PARSER, PageParams.PAGE);
PARSER.declareDouble(GetRecordsRequest::setRecordScore, RECORD_SCORE);
PARSER.declareString(GetRecordsRequest::setSort, SORT);
PARSER.declareBoolean(GetRecordsRequest::setDescending, DESCENDING);
}
private String jobId;
private Boolean excludeInterim;
private String start;
private String end;
private PageParams pageParams;
private Double recordScore;
private String sort;
private Boolean descending;
private GetRecordsRequest() {}
/**
* Constructs a request to retrieve records of a given job
* @param jobId id of the job to retrieve records of
*/
public GetRecordsRequest(String jobId) {
this.jobId = Objects.requireNonNull(jobId);
}
public String getJobId() {
return jobId;
}
public boolean isExcludeInterim() {
return excludeInterim;
}
/**
* Sets the value of "exclude_interim".
* When {@code true}, interim records will be filtered out.
* @param excludeInterim value of "exclude_interim" to be set
*/
public void setExcludeInterim(boolean excludeInterim) {
this.excludeInterim = excludeInterim;
}
public String getStart() {
return start;
}
/**
* Sets the value of "start" which is a timestamp.
* Only records whose timestamp is on or after the "start" value will be returned.
* @param start value of "start" to be set
*/
public void setStart(String start) {
this.start = start;
}
public String getEnd() {
return end;
}
/**
* Sets the value of "end" which is a timestamp.
* Only records whose timestamp is before the "end" value will be returned.
* @param end value of "end" to be set
*/
public void setEnd(String end) {
this.end = end;
}
public PageParams getPageParams() {
return pageParams;
}
/**
* Sets the paging parameters
* @param pageParams The paging parameters
*/
public void setPageParams(PageParams pageParams) {
this.pageParams = pageParams;
}
public Double getRecordScore() {
return recordScore;
}
/**
* Sets the value of "record_score".
* Only records with "record_score" equal or greater will be returned.
* @param recordScore value of "record_score".
*/
public void setRecordScore(double recordScore) {
this.recordScore = recordScore;
}
public String getSort() {
return sort;
}
/**
* Sets the value of "sort".
* Specifies the bucket field to sort on.
* @param sort value of "sort".
*/
public void setSort(String sort) {
this.sort = sort;
}
public boolean isDescending() {
return descending;
}
/**
* Sets the value of "desc".
* Specifies the sorting order.
* @param descending value of "desc"
*/
public void setDescending(boolean descending) {
this.descending = descending;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
builder.field(Job.ID.getPreferredName(), jobId);
if (excludeInterim != null) {
builder.field(EXCLUDE_INTERIM.getPreferredName(), excludeInterim);
}
if (start != null) {
builder.field(START.getPreferredName(), start);
}
if (end != null) {
builder.field(END.getPreferredName(), end);
}
if (pageParams != null) {
builder.field(PageParams.PAGE.getPreferredName(), pageParams);
}
if (recordScore != null) {
builder.field(RECORD_SCORE.getPreferredName(), recordScore);
}
if (sort != null) {
builder.field(SORT.getPreferredName(), sort);
}
if (descending != null) {
builder.field(DESCENDING.getPreferredName(), descending);
}
builder.endObject();
return builder;
}
@Override
public int hashCode() {
return Objects.hash(jobId, excludeInterim, recordScore, pageParams, start, end, sort, descending);
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
GetRecordsRequest other = (GetRecordsRequest) obj;
return Objects.equals(jobId, other.jobId) &&
Objects.equals(excludeInterim, other.excludeInterim) &&
Objects.equals(recordScore, other.recordScore) &&
Objects.equals(pageParams, other.pageParams) &&
Objects.equals(start, other.start) &&
Objects.equals(end, other.end) &&
Objects.equals(sort, other.sort) &&
Objects.equals(descending, other.descending);
}
}

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@ -0,0 +1,78 @@
/*
* 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.client.ml;
import org.elasticsearch.client.ml.job.results.AnomalyRecord;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.xcontent.ConstructingObjectParser;
import org.elasticsearch.common.xcontent.XContentParser;
import java.io.IOException;
import java.util.List;
import java.util.Objects;
/**
* A response containing the requested buckets
*/
public class GetRecordsResponse extends AbstractResultResponse<AnomalyRecord> {
public static final ParseField RECORDS = new ParseField("records");
@SuppressWarnings("unchecked")
public static final ConstructingObjectParser<GetRecordsResponse, Void> PARSER = new ConstructingObjectParser<>("get_records_response",
true, a -> new GetRecordsResponse((List<AnomalyRecord>) a[0], (long) a[1]));
static {
PARSER.declareObjectArray(ConstructingObjectParser.constructorArg(), AnomalyRecord.PARSER, RECORDS);
PARSER.declareLong(ConstructingObjectParser.constructorArg(), COUNT);
}
public static GetRecordsResponse fromXContent(XContentParser parser) throws IOException {
return PARSER.parse(parser, null);
}
GetRecordsResponse(List<AnomalyRecord> buckets, long count) {
super(RECORDS, buckets, count);
}
/**
* The retrieved records
* @return the retrieved records
*/
public List<AnomalyRecord> records() {
return results;
}
@Override
public int hashCode() {
return Objects.hash(count, results);
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
GetRecordsResponse other = (GetRecordsResponse) obj;
return count == other.count && Objects.equals(results, other.results);
}
}

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@ -23,8 +23,11 @@ import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.support.WriteRequest;
import org.elasticsearch.client.ml.GetBucketsRequest;
import org.elasticsearch.client.ml.GetBucketsResponse;
import org.elasticsearch.client.ml.GetRecordsRequest;
import org.elasticsearch.client.ml.GetRecordsResponse;
import org.elasticsearch.client.ml.PutJobRequest;
import org.elasticsearch.client.ml.job.config.Job;
import org.elasticsearch.client.ml.job.results.AnomalyRecord;
import org.elasticsearch.client.ml.job.results.Bucket;
import org.elasticsearch.client.ml.job.util.PageParams;
import org.elasticsearch.common.xcontent.XContentType;
@ -34,7 +37,10 @@ import org.junit.Before;
import java.io.IOException;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.greaterThanOrEqualTo;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.lessThan;
import static org.hamcrest.Matchers.lessThanOrEqualTo;
public class MachineLearningGetResultsIT extends ESRestHighLevelClientTestCase {
@ -47,7 +53,8 @@ public class MachineLearningGetResultsIT extends ESRestHighLevelClientTestCase {
// 2018-08-01T00:00:00Z
private static final long START_TIME_EPOCH_MS = 1533081600000L;
private BucketStats bucketStats = new BucketStats();
private Stats bucketStats = new Stats();
private Stats recordStats = new Stats();
@Before
public void createJobAndIndexResults() throws IOException {
@ -68,7 +75,7 @@ public class MachineLearningGetResultsIT extends ESRestHighLevelClientTestCase {
// Also index an interim bucket
addBucketIndexRequest(time, true, bulkRequest);
addRecordIndexRequests(time, true, bulkRequest);
addRecordIndexRequest(time, true, bulkRequest);
highLevelClient().bulk(bulkRequest, RequestOptions.DEFAULT);
}
@ -91,16 +98,21 @@ public class MachineLearningGetResultsIT extends ESRestHighLevelClientTestCase {
}
int recordCount = randomIntBetween(1, 3);
for (int i = 0; i < recordCount; ++i) {
IndexRequest indexRequest = new IndexRequest(RESULTS_INDEX, DOC);
double recordScore = randomDoubleBetween(0.0, 100.0, true);
double p = randomDoubleBetween(0.0, 0.05, false);
indexRequest.source("{\"job_id\":\"" + JOB_ID + "\", \"result_type\":\"record\", \"timestamp\": " + timestamp + "," +
"\"bucket_span\": 3600,\"is_interim\": " + isInterim + ", \"record_score\": " + recordScore + ", \"probability\": "
+ p + "}", XContentType.JSON);
bulkRequest.add(indexRequest);
addRecordIndexRequest(timestamp, isInterim, bulkRequest);
}
}
private void addRecordIndexRequest(long timestamp, boolean isInterim, BulkRequest bulkRequest) {
IndexRequest indexRequest = new IndexRequest(RESULTS_INDEX, DOC);
double recordScore = randomDoubleBetween(0.0, 100.0, true);
recordStats.report(recordScore);
double p = randomDoubleBetween(0.0, 0.05, false);
indexRequest.source("{\"job_id\":\"" + JOB_ID + "\", \"result_type\":\"record\", \"timestamp\": " + timestamp + "," +
"\"bucket_span\": 3600,\"is_interim\": " + isInterim + ", \"record_score\": " + recordScore + ", \"probability\": "
+ p + "}", XContentType.JSON);
bulkRequest.add(indexRequest);
}
@After
public void deleteJob() throws IOException {
new MlRestTestStateCleaner(logger, client()).clearMlMetadata();
@ -194,7 +206,73 @@ public class MachineLearningGetResultsIT extends ESRestHighLevelClientTestCase {
}
}
private static class BucketStats {
public void testGetRecords() throws IOException {
MachineLearningClient machineLearningClient = highLevelClient().machineLearning();
{
GetRecordsRequest request = new GetRecordsRequest(JOB_ID);
GetRecordsResponse response = execute(request, machineLearningClient::getRecords, machineLearningClient::getRecordsAsync);
assertThat(response.count(), greaterThan(0L));
assertThat(response.count(), equalTo(recordStats.totalCount()));
}
{
GetRecordsRequest request = new GetRecordsRequest(JOB_ID);
request.setRecordScore(50.0);
GetRecordsResponse response = execute(request, machineLearningClient::getRecords, machineLearningClient::getRecordsAsync);
long majorAndCriticalCount = recordStats.majorCount + recordStats.criticalCount;
assertThat(response.count(), equalTo(majorAndCriticalCount));
assertThat(response.records().size(), equalTo((int) Math.min(100, majorAndCriticalCount)));
assertThat(response.records().stream().anyMatch(r -> r.getRecordScore() < 50.0), is(false));
}
{
GetRecordsRequest request = new GetRecordsRequest(JOB_ID);
request.setExcludeInterim(true);
GetRecordsResponse response = execute(request, machineLearningClient::getRecords, machineLearningClient::getRecordsAsync);
assertThat(response.count(), equalTo(recordStats.totalCount() - 1));
}
{
long end = START_TIME_EPOCH_MS + 10 * 3600000;
GetRecordsRequest request = new GetRecordsRequest(JOB_ID);
request.setStart(String.valueOf(START_TIME_EPOCH_MS));
request.setEnd(String.valueOf(end));
GetRecordsResponse response = execute(request, machineLearningClient::getRecords, machineLearningClient::getRecordsAsync);
for (AnomalyRecord record : response.records()) {
assertThat(record.getTimestamp().getTime(), greaterThanOrEqualTo(START_TIME_EPOCH_MS));
assertThat(record.getTimestamp().getTime(), lessThan(end));
}
}
{
GetRecordsRequest request = new GetRecordsRequest(JOB_ID);
request.setPageParams(new PageParams(3, 3));
GetRecordsResponse response = execute(request, machineLearningClient::getRecords, machineLearningClient::getRecordsAsync);
assertThat(response.records().size(), equalTo(3));
}
{
GetRecordsRequest request = new GetRecordsRequest(JOB_ID);
request.setSort("probability");
request.setDescending(true);
GetRecordsResponse response = execute(request, machineLearningClient::getRecords, machineLearningClient::getRecordsAsync);
double previousProb = 1.0;
for (AnomalyRecord record : response.records()) {
assertThat(record.getProbability(), lessThanOrEqualTo(previousProb));
previousProb = record.getProbability();
}
}
}
private static class Stats {
// score < 50.0
private long minorCount;
@ -204,14 +282,18 @@ public class MachineLearningGetResultsIT extends ESRestHighLevelClientTestCase {
// score > 75.0
private long criticalCount;
private void report(double anomalyScore) {
if (anomalyScore < 50.0) {
private void report(double score) {
if (score < 50.0) {
minorCount++;
} else if (anomalyScore < 75.0) {
} else if (score < 75.0) {
majorCount++;
} else {
criticalCount++;
}
}
private long totalCount() {
return minorCount + majorCount + criticalCount;
}
}
}

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@ -35,6 +35,8 @@ import org.elasticsearch.client.ml.GetBucketsRequest;
import org.elasticsearch.client.ml.GetBucketsResponse;
import org.elasticsearch.client.ml.GetJobRequest;
import org.elasticsearch.client.ml.GetJobResponse;
import org.elasticsearch.client.ml.GetRecordsRequest;
import org.elasticsearch.client.ml.GetRecordsResponse;
import org.elasticsearch.client.ml.OpenJobRequest;
import org.elasticsearch.client.ml.OpenJobResponse;
import org.elasticsearch.client.ml.PutJobRequest;
@ -43,6 +45,7 @@ import org.elasticsearch.client.ml.job.config.AnalysisConfig;
import org.elasticsearch.client.ml.job.config.DataDescription;
import org.elasticsearch.client.ml.job.config.Detector;
import org.elasticsearch.client.ml.job.config.Job;
import org.elasticsearch.client.ml.job.results.AnomalyRecord;
import org.elasticsearch.client.ml.job.results.Bucket;
import org.elasticsearch.client.ml.job.util.PageParams;
import org.elasticsearch.common.unit.TimeValue;
@ -454,4 +457,94 @@ public class MlClientDocumentationIT extends ESRestHighLevelClientTestCase {
assertTrue(latch.await(30L, TimeUnit.SECONDS));
}
}
public void testGetRecords() throws IOException, InterruptedException {
RestHighLevelClient client = highLevelClient();
String jobId = "test-get-records";
Job job = MachineLearningIT.buildJob(jobId);
client.machineLearning().putJob(new PutJobRequest(job), RequestOptions.DEFAULT);
// Let us index a record
IndexRequest indexRequest = new IndexRequest(".ml-anomalies-shared", "doc");
indexRequest.setRefreshPolicy(WriteRequest.RefreshPolicy.IMMEDIATE);
indexRequest.source("{\"job_id\":\"test-get-records\", \"result_type\":\"record\", \"timestamp\": 1533081600000," +
"\"bucket_span\": 600,\"is_interim\": false, \"record_score\": 80.0}", XContentType.JSON);
client.index(indexRequest, RequestOptions.DEFAULT);
{
// tag::x-pack-ml-get-records-request
GetRecordsRequest request = new GetRecordsRequest(jobId); // <1>
// end::x-pack-ml-get-records-request
// tag::x-pack-ml-get-records-desc
request.setDescending(true); // <1>
// end::x-pack-ml-get-records-desc
// tag::x-pack-ml-get-records-end
request.setEnd("2018-08-21T00:00:00Z"); // <1>
// end::x-pack-ml-get-records-end
// tag::x-pack-ml-get-records-exclude-interim
request.setExcludeInterim(true); // <1>
// end::x-pack-ml-get-records-exclude-interim
// tag::x-pack-ml-get-records-page
request.setPageParams(new PageParams(100, 200)); // <1>
// end::x-pack-ml-get-records-page
// Set page params back to null so the response contains the record we indexed
request.setPageParams(null);
// tag::x-pack-ml-get-records-record-score
request.setRecordScore(75.0); // <1>
// end::x-pack-ml-get-records-record-score
// tag::x-pack-ml-get-records-sort
request.setSort("probability"); // <1>
// end::x-pack-ml-get-records-sort
// tag::x-pack-ml-get-records-start
request.setStart("2018-08-01T00:00:00Z"); // <1>
// end::x-pack-ml-get-records-start
// tag::x-pack-ml-get-records-execute
GetRecordsResponse response = client.machineLearning().getRecords(request, RequestOptions.DEFAULT);
// end::x-pack-ml-get-records-execute
// tag::x-pack-ml-get-records-response
long count = response.count(); // <1>
List<AnomalyRecord> records = response.records(); // <2>
// end::x-pack-ml-get-records-response
assertEquals(1, records.size());
}
{
GetRecordsRequest request = new GetRecordsRequest(jobId);
// tag::x-pack-ml-get-records-listener
ActionListener<GetRecordsResponse> listener =
new ActionListener<GetRecordsResponse>() {
@Override
public void onResponse(GetRecordsResponse getRecordsResponse) {
// <1>
}
@Override
public void onFailure(Exception e) {
// <2>
}
};
// end::x-pack-ml-get-records-listener
// Replace the empty listener by a blocking listener in test
final CountDownLatch latch = new CountDownLatch(1);
listener = new LatchedActionListener<>(listener, latch);
// tag::x-pack-ml-get-records-execute-async
client.machineLearning().getRecordsAsync(request, RequestOptions.DEFAULT, listener); // <1>
// end::x-pack-ml-get-records-execute-async
assertTrue(latch.await(30L, TimeUnit.SECONDS));
}
}
}

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@ -0,0 +1,72 @@
/*
* 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.client.ml;
import org.elasticsearch.client.ml.job.util.PageParams;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.test.AbstractXContentTestCase;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
public class GetRecordsRequestTests extends AbstractXContentTestCase<GetRecordsRequest> {
@Override
protected GetRecordsRequest createTestInstance() {
GetRecordsRequest request = new GetRecordsRequest(ESTestCase.randomAlphaOfLengthBetween(1, 20));
if (ESTestCase.randomBoolean()) {
request.setStart(String.valueOf(ESTestCase.randomLong()));
}
if (ESTestCase.randomBoolean()) {
request.setEnd(String.valueOf(ESTestCase.randomLong()));
}
if (ESTestCase.randomBoolean()) {
request.setExcludeInterim(ESTestCase.randomBoolean());
}
if (ESTestCase.randomBoolean()) {
request.setRecordScore(ESTestCase.randomDouble());
}
if (ESTestCase.randomBoolean()) {
int from = ESTestCase.randomInt(10000);
int size = ESTestCase.randomInt(10000);
request.setPageParams(new PageParams(from, size));
}
if (ESTestCase.randomBoolean()) {
request.setSort("anomaly_score");
}
if (ESTestCase.randomBoolean()) {
request.setDescending(ESTestCase.randomBoolean());
}
if (ESTestCase.randomBoolean()) {
request.setExcludeInterim(ESTestCase.randomBoolean());
}
return request;
}
@Override
protected GetRecordsRequest doParseInstance(XContentParser parser) throws IOException {
return GetRecordsRequest.PARSER.apply(parser, null);
}
@Override
protected boolean supportsUnknownFields() {
return false;
}
}

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@ -0,0 +1,54 @@
/*
* 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.client.ml;
import org.elasticsearch.client.ml.job.results.AnomalyRecord;
import org.elasticsearch.client.ml.job.results.AnomalyRecordTests;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.test.AbstractXContentTestCase;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class GetRecordsResponseTests extends AbstractXContentTestCase<GetRecordsResponse> {
@Override
protected GetRecordsResponse createTestInstance() {
String jobId = ESTestCase.randomAlphaOfLength(20);
int listSize = ESTestCase.randomInt(10);
List<AnomalyRecord> records = new ArrayList<>(listSize);
for (int j = 0; j < listSize; j++) {
AnomalyRecord record = AnomalyRecordTests.createTestInstance(jobId);
records.add(record);
}
return new GetRecordsResponse(records, listSize);
}
@Override
protected GetRecordsResponse doParseInstance(XContentParser parser) throws IOException {
return GetRecordsResponse.fromXContent(parser);
}
@Override
protected boolean supportsUnknownFields() {
return true;
}
}

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@ -33,7 +33,7 @@ public class AnomalyRecordTests extends AbstractXContentTestCase<AnomalyRecord>
return createTestInstance("foo");
}
public AnomalyRecord createTestInstance(String jobId) {
public static AnomalyRecord createTestInstance(String jobId) {
AnomalyRecord anomalyRecord = new AnomalyRecord(jobId, new Date(randomNonNegativeLong()), randomNonNegativeLong());
anomalyRecord.setActual(Collections.singletonList(randomDouble()));
anomalyRecord.setTypical(Collections.singletonList(randomDouble()));

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@ -70,7 +70,7 @@ public class BucketTests extends AbstractXContentTestCase<Bucket> {
int size = randomInt(10);
List<AnomalyRecord> records = new ArrayList<>(size);
for (int i = 0; i < size; i++) {
AnomalyRecord anomalyRecord = new AnomalyRecordTests().createTestInstance(jobId);
AnomalyRecord anomalyRecord = AnomalyRecordTests.createTestInstance(jobId);
records.add(anomalyRecord);
}
bucket.setRecords(records);

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@ -0,0 +1,113 @@
[[java-rest-high-x-pack-ml-get-records]]
=== Get Records API
The Get Records API retrieves one or more record results.
It accepts a `GetRecordsRequest` object and responds
with a `GetRecordsResponse` object.
[[java-rest-high-x-pack-ml-get-records-request]]
==== Get Records Request
A `GetRecordsRequest` object gets created with an existing non-null `jobId`.
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-request]
--------------------------------------------------
<1> Constructing a new request referencing an existing `jobId`
==== Optional Arguments
The following arguments are optional:
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-desc]
--------------------------------------------------
<1> If `true`, the records are sorted in descending order. Defaults to `false`.
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-end]
--------------------------------------------------
<1> Records with timestamps earlier than this time will be returned.
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-exclude-interim]
--------------------------------------------------
<1> If `true`, interim results will be excluded. Defaults to `false`.
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-page]
--------------------------------------------------
<1> The page parameters `from` and `size`. `from` specifies the number of records to skip.
`size` specifies the maximum number of records to get. Defaults to `0` and `100` respectively.
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-record-score]
--------------------------------------------------
<1> Records with record_score greater or equal than this value will be returned.
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-sort]
--------------------------------------------------
<1> The field to sort records on. Defaults to `influencer_score`.
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-end]
--------------------------------------------------
<1> Records with timestamps on or after this time will be returned.
[[java-rest-high-x-pack-ml-get-records-execution]]
==== Execution
The request can be executed through the `MachineLearningClient` contained
in the `RestHighLevelClient` object, accessed via the `machineLearningClient()` method.
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-execute]
--------------------------------------------------
[[java-rest-high-x-pack-ml-get-records-execution-async]]
==== Asynchronous Execution
The request can also be executed asynchronously:
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-execute-async]
--------------------------------------------------
<1> The `GetRecordsRequest` 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 with the `onResponse` method
if the execution is successful or the `onFailure` method if the execution
failed.
A typical listener for `GetRecordsResponse` looks like:
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-listener]
--------------------------------------------------
<1> `onResponse` is called back when the action is completed successfully
<2> `onFailure` is called back when some unexpected error occurs
[[java-rest-high-snapshot-ml-get-records-response]]
==== Get Records Response
The returned `GetRecordsResponse` contains the requested records:
["source","java",subs="attributes,callouts,macros"]
--------------------------------------------------
include-tagged::{doc-tests}/MlClientDocumentationIT.java[x-pack-ml-get-records-response]
--------------------------------------------------
<1> The count of records that were matched
<2> The records retrieved

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@ -212,6 +212,7 @@ The Java High Level REST Client supports the following Machine Learning APIs:
* <<java-rest-high-x-pack-ml-open-job>>
* <<java-rest-high-x-pack-ml-close-job>>
* <<java-rest-high-x-pack-ml-get-buckets>>
* <<java-rest-high-x-pack-ml-get-records>>
include::ml/put-job.asciidoc[]
include::ml/get-job.asciidoc[]
@ -219,6 +220,7 @@ include::ml/delete-job.asciidoc[]
include::ml/open-job.asciidoc[]
include::ml/close-job.asciidoc[]
include::ml/get-buckets.asciidoc[]
include::ml/get-records.asciidoc[]
== Migration APIs