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* HLRC: ML Post data
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client/rest-high-level/src/main/java/org/elasticsearch/client/ml/PostDataRequest.java
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| /* | ||
| * 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.action.ActionRequest; | ||
| import org.elasticsearch.action.ActionRequestValidationException; | ||
| import org.elasticsearch.client.ml.job.config.Job; | ||
| import org.elasticsearch.common.ParseField; | ||
| import org.elasticsearch.common.bytes.BytesArray; | ||
| import org.elasticsearch.common.bytes.BytesReference; | ||
| import org.elasticsearch.common.xcontent.ConstructingObjectParser; | ||
| import org.elasticsearch.common.xcontent.ToXContentObject; | ||
| import org.elasticsearch.common.xcontent.XContentBuilder; | ||
| import org.elasticsearch.common.xcontent.XContentType; | ||
|
|
||
| import java.io.IOException; | ||
| import java.nio.ByteBuffer; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Objects; | ||
|
|
||
| /** | ||
| * POJO for posting data to a Machine Learning job | ||
| */ | ||
| public class PostDataRequest extends ActionRequest implements ToXContentObject { | ||
|
|
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| public static final ParseField RESET_START = new ParseField("reset_start"); | ||
| public static final ParseField RESET_END = new ParseField("reset_end"); | ||
| public static final ParseField CONTENT_TYPE = new ParseField("content_type"); | ||
|
|
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| public static final ConstructingObjectParser<PostDataRequest, Void> PARSER = | ||
| new ConstructingObjectParser<>("post_data_request", | ||
| (a) -> new PostDataRequest((String)a[0], XContentType.fromMediaTypeOrFormat((String)a[1]), new byte[0])); | ||
|
|
||
| static { | ||
| PARSER.declareString(ConstructingObjectParser.constructorArg(), Job.ID); | ||
| PARSER.declareString(ConstructingObjectParser.constructorArg(), CONTENT_TYPE); | ||
| PARSER.declareStringOrNull(PostDataRequest::setResetEnd, RESET_END); | ||
| PARSER.declareStringOrNull(PostDataRequest::setResetStart, RESET_START); | ||
| } | ||
|
|
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| private final String jobId; | ||
| private final XContentType xContentType; | ||
| private final BytesReference content; | ||
| private String resetStart; | ||
| private String resetEnd; | ||
|
|
||
| /** | ||
| * Create a new PostDataRequest object | ||
| * | ||
| * @param jobId non-null jobId of the job to post data to | ||
| * @param xContentType content type of the data to post. Only {@link XContentType#JSON} or {@link XContentType#SMILE} are supported | ||
| * @param content bulk serialized content in the format of the passed {@link XContentType} | ||
| */ | ||
| public PostDataRequest(String jobId, XContentType xContentType, BytesReference content) { | ||
| this.jobId = Objects.requireNonNull(jobId, "job_id must not be null"); | ||
| this.xContentType = Objects.requireNonNull(xContentType, "content_type must not be null"); | ||
| this.content = Objects.requireNonNull(content, "content must not be null"); | ||
| } | ||
|
|
||
| /** | ||
| * Create a new PostDataRequest object referencing the passed {@code byte[]} content | ||
| * | ||
| * @param jobId non-null jobId of the job to post data to | ||
| * @param xContentType content type of the data to post. Only {@link XContentType#JSON} or {@link XContentType#SMILE} are supported | ||
| * @param content bulk serialized content in the format of the passed {@link XContentType} | ||
| */ | ||
| public PostDataRequest(String jobId, XContentType xContentType, byte[] content) { | ||
| this(jobId, xContentType, new BytesArray(content)); | ||
| } | ||
|
|
||
| /** | ||
| * Create a new PostDataRequest object referencing the passed {@link JsonBuilder} object | ||
| * | ||
| * @param jobId non-null jobId of the job to post data to | ||
| * @param builder {@link JsonBuilder} object containing documents to be serialized and sent in {@link XContentType#JSON} format | ||
| */ | ||
| public PostDataRequest(String jobId, JsonBuilder builder) { | ||
| this(jobId, XContentType.JSON, builder.build()); | ||
| } | ||
|
|
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| public String getJobId() { | ||
| return jobId; | ||
| } | ||
|
|
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| public String getResetStart() { | ||
| return resetStart; | ||
| } | ||
|
|
||
| /** | ||
| * Specifies the start of the bucket resetting range | ||
| * | ||
| * @param resetStart String representation of a timestamp; may be an epoch seconds, epoch millis or an ISO 8601 string | ||
| */ | ||
| public void setResetStart(String resetStart) { | ||
| this.resetStart = resetStart; | ||
| } | ||
|
|
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| public String getResetEnd() { | ||
| return resetEnd; | ||
| } | ||
|
|
||
| /** | ||
| * Specifies the end of the bucket resetting range | ||
| * | ||
| * @param resetEnd String representation of a timestamp; may be an epoch seconds, epoch millis or an ISO 8601 string | ||
| */ | ||
| public void setResetEnd(String resetEnd) { | ||
| this.resetEnd = resetEnd; | ||
| } | ||
|
|
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| public BytesReference getContent() { | ||
| return content; | ||
| } | ||
|
|
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| public XContentType getXContentType() { | ||
| return xContentType; | ||
| } | ||
|
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| @Override | ||
| public int hashCode() { | ||
| //We leave out the content for server side parity | ||
| return Objects.hash(jobId, resetStart, resetEnd, xContentType); | ||
| } | ||
|
|
||
| @Override | ||
| public boolean equals(Object obj) { | ||
| if(obj == this) { | ||
| return true; | ||
| } | ||
|
|
||
| if (obj == null || getClass() != obj.getClass()) { | ||
| return false; | ||
| } | ||
|
|
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| //We leave out the content for server side parity | ||
| PostDataRequest other = (PostDataRequest) obj; | ||
| return Objects.equals(jobId, other.jobId) && | ||
| Objects.equals(resetStart, other.resetStart) && | ||
| Objects.equals(resetEnd, other.resetEnd) && | ||
| Objects.equals(xContentType, other.xContentType); | ||
| } | ||
|
|
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| @Override | ||
| public ActionRequestValidationException validate() { | ||
| return null; | ||
| } | ||
|
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| @Override | ||
| public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException { | ||
| builder.startObject(); | ||
| builder.field(Job.ID.getPreferredName(), jobId); | ||
| builder.field(CONTENT_TYPE.getPreferredName(), xContentType.mediaType()); | ||
| if (resetEnd != null) { | ||
| builder.field(RESET_END.getPreferredName(), resetEnd); | ||
| } | ||
| if (resetStart != null) { | ||
| builder.field(RESET_START.getPreferredName(), resetStart); | ||
| } | ||
| builder.endObject(); | ||
| return builder; | ||
| } | ||
|
|
||
| /** | ||
| * Class for incrementally building a bulk document request in {@link XContentType#JSON} format | ||
| */ | ||
| public static class JsonBuilder { | ||
|
|
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| private final List<ByteBuffer> bytes = new ArrayList<>(); | ||
|
|
||
| /** | ||
| * Add a document via a {@code byte[]} array | ||
| * | ||
| * @param doc {@code byte[]} array of a serialized JSON object | ||
| */ | ||
| public JsonBuilder addDoc(byte[] doc) { | ||
| bytes.add(ByteBuffer.wrap(doc)); | ||
| return this; | ||
| } | ||
|
|
||
| /** | ||
| * Add a document via a serialized JSON String | ||
| * | ||
| * @param doc a serialized JSON String | ||
| */ | ||
| public JsonBuilder addDoc(String doc) { | ||
| bytes.add(ByteBuffer.wrap(doc.getBytes(StandardCharsets.UTF_8))); | ||
| return this; | ||
| } | ||
|
|
||
| /** | ||
| * Add a document via an object map | ||
| * | ||
| * @param doc document object to add to bulk request | ||
| * @throws IOException on parsing/serialization errors | ||
| */ | ||
| public JsonBuilder addDoc(Map<String, Object> doc) throws IOException { | ||
| try (XContentBuilder builder = XContentBuilder.builder(XContentType.JSON.xContent())) { | ||
| builder.map(doc); | ||
| bytes.add(ByteBuffer.wrap(BytesReference.toBytes(BytesReference.bytes(builder)))); | ||
| } | ||
| return this; | ||
| } | ||
|
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| private BytesReference build() { | ||
| ByteBuffer[] buffers = bytes.toArray(new ByteBuffer[bytes.size()]); | ||
| return BytesReference.fromByteBuffers(buffers); | ||
| } | ||
|
|
||
| } | ||
| } |
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