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@@ -1,710 +0,0 @@
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-/*
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- * Licensed to Elasticsearch under one or more contributor
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- * license agreements. See the NOTICE file distributed with
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- * this work for additional information regarding copyright
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- * ownership. Elasticsearch licenses this file to you under
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- * the Apache License, Version 2.0 (the "License"); you may
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- * not use this file except in compliance with the License.
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- * You may obtain a copy of the License at
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- *
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- * http://www.apache.org/licenses/LICENSE-2.0
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- *
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- * Unless required by applicable law or agreed to in writing,
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- * software distributed under the License is distributed on an
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- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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- * KIND, either express or implied. See the License for the
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- * specific language governing permissions and limitations
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- * under the License.
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- */
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-
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-package org.elasticsearch.action.mlt;
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-
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-import com.google.common.collect.Lists;
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-import org.elasticsearch.ElasticsearchGenerationException;
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-import org.elasticsearch.action.*;
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-import org.elasticsearch.action.search.SearchRequest;
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-import org.elasticsearch.action.search.SearchType;
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-import org.elasticsearch.action.support.IndicesOptions;
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-import org.elasticsearch.client.Requests;
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-import org.elasticsearch.common.Strings;
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-import org.elasticsearch.common.bytes.BytesArray;
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-import org.elasticsearch.common.bytes.BytesReference;
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-import org.elasticsearch.common.io.stream.StreamInput;
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-import org.elasticsearch.common.io.stream.StreamOutput;
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-import org.elasticsearch.common.xcontent.XContentBuilder;
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-import org.elasticsearch.common.xcontent.XContentFactory;
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-import org.elasticsearch.search.Scroll;
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-import org.elasticsearch.search.builder.SearchSourceBuilder;
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-
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-import java.io.IOException;
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-import java.util.List;
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-import java.util.Map;
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-
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-import static org.elasticsearch.search.Scroll.readScroll;
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-
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-/**
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- * A more like this request allowing to search for documents that a "like" the provided document. The document
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- * to check against to fetched based on the index, type and id provided. Best created with {@link org.elasticsearch.client.Requests#moreLikeThisRequest(String)}.
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- * <p/>
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- * <p>Note, the {@link #index()}, {@link #type(String)} and {@link #id(String)} are required.
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- *
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- * @see org.elasticsearch.client.Client#moreLikeThis(MoreLikeThisRequest)
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- * @see org.elasticsearch.client.Requests#moreLikeThisRequest(String)
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- * @see org.elasticsearch.action.search.SearchResponse
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- */
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-public class MoreLikeThisRequest extends ActionRequest<MoreLikeThisRequest> implements CompositeIndicesRequest {
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-
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- private String index;
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-
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- private String type;
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-
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- private String id;
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-
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- private String routing;
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-
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- private String[] fields;
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-
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- private String minimumShouldMatch = "0%";
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- private int minTermFreq = -1;
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- private int maxQueryTerms = -1;
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- private String[] stopWords = null;
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- private int minDocFreq = -1;
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- private int maxDocFreq = -1;
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- private int minWordLength = -1;
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- private int maxWordLength = -1;
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- private float boostTerms = -1;
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- private boolean include = false;
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-
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- private SearchType searchType = SearchType.DEFAULT;
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- private int searchSize = 0;
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- private int searchFrom = 0;
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- private String[] searchIndices;
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- private String[] searchTypes;
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- private Scroll searchScroll;
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-
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- private BytesReference searchSource;
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-
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- MoreLikeThisRequest() {
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- }
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-
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- /**
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- * Constructs a new more like this request for a document that will be fetch from the provided index.
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- * Use {@link #type(String)} and {@link #id(String)} to specify the document to load.
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- */
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- public MoreLikeThisRequest(String index) {
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- this.index = index;
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- }
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-
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- /**
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- * The index to load the document from which the "like" query will run with.
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- */
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- public String index() {
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- return index;
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- }
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-
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- /**
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- * The type of document to load from which the "like" query will run with.
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- */
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- public String type() {
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- return type;
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- }
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-
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- void index(String index) {
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- this.index = index;
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- }
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-
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- public IndicesOptions indicesOptions() {
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- return IndicesOptions.strictSingleIndexNoExpandForbidClosed();
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- }
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-
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- @Override
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- public List<? extends IndicesRequest> subRequests() {
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- //we create two fake indices subrequests as we don't have the actual ones yet
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- //since they get created later on in TransportMoreLikeThisAction
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- List<IndicesRequest> requests = Lists.newArrayList();
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- requests.add(new IndicesRequest() {
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- @Override
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- public String[] indices() {
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- return new String[]{index};
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- }
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-
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- @Override
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- public IndicesOptions indicesOptions() {
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- return MoreLikeThisRequest.this.indicesOptions();
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- }
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- });
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- requests.add(new IndicesRequest.Replaceable() {
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- @Override
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- public String[] indices() {
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- if (searchIndices != null) {
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- return searchIndices;
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- }
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- return new String[]{index};
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- }
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-
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- @Override
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- public IndicesRequest indices(String[] indices) {
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- searchIndices = indices;
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- return this;
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- }
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-
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- @Override
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- public IndicesOptions indicesOptions() {
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- return SearchRequest.DEFAULT_INDICES_OPTIONS;
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- }
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- });
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- return requests;
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- }
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-
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- /**
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- * The type of document to load from which the "like" query will execute with.
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- */
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- public MoreLikeThisRequest type(String type) {
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- this.type = type;
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- return this;
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- }
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-
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- /**
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- * The id of document to load from which the "like" query will execute with.
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- */
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- public String id() {
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- return id;
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- }
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-
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- /**
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- * The id of document to load from which the "like" query will execute with.
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- */
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- public MoreLikeThisRequest id(String id) {
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- this.id = id;
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- return this;
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- }
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-
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- /**
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- * @return The routing for this request. This used for the `get` part of the mlt request.
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- */
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- public String routing() {
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- return routing;
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- }
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-
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- public void routing(String routing) {
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- this.routing = routing;
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- }
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-
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- /**
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- * The fields of the document to use in order to find documents "like" this one. Defaults to run
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- * against all the document fields.
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- */
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- public String[] fields() {
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- return this.fields;
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- }
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-
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- /**
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- * The fields of the document to use in order to find documents "like" this one. Defaults to run
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- * against all the document fields.
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- */
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- public MoreLikeThisRequest fields(String... fields) {
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- this.fields = fields;
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- return this;
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- }
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-
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- /**
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- * Number of terms that must match the generated query expressed in the
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- * common syntax for minimum should match. Defaults to <tt>30%</tt>.
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- *
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- * @see org.elasticsearch.common.lucene.search.Queries#calculateMinShouldMatch(int, String)
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- */
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- public MoreLikeThisRequest minimumShouldMatch(String minimumShouldMatch) {
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- this.minimumShouldMatch = minimumShouldMatch;
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- return this;
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- }
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-
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- /**
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- * Number of terms that must match the generated query expressed in the
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- * common syntax for minimum should match.
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- *
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- * @see org.elasticsearch.common.lucene.search.Queries#calculateMinShouldMatch(int, String)
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- */
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- public String minimumShouldMatch() {
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- return this.minimumShouldMatch;
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- }
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-
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- /**
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- * The percent of the terms to match for each field. Defaults to <tt>0.3f</tt>.
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- */
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- @Deprecated
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- public MoreLikeThisRequest percentTermsToMatch(float percentTermsToMatch) {
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- return minimumShouldMatch(Math.round(percentTermsToMatch * 100) + "%");
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- }
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-
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- /**
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- * The percent of the terms to match for each field. Defaults to <tt>0.3f</tt>.
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- */
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- @Deprecated
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- public float percentTermsToMatch() {
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- if (minimumShouldMatch.endsWith("%")) {
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- return Float.parseFloat(minimumShouldMatch.substring(0, minimumShouldMatch.indexOf("%"))) / 100;
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- } else {
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- return -1;
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- }
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- }
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-
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- /**
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- * The frequency below which terms will be ignored in the source doc. Defaults to <tt>2</tt>.
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- */
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- public MoreLikeThisRequest minTermFreq(int minTermFreq) {
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- this.minTermFreq = minTermFreq;
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- return this;
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- }
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-
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- /**
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- * The frequency below which terms will be ignored in the source doc. Defaults to <tt>2</tt>.
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- */
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- public int minTermFreq() {
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- return this.minTermFreq;
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- }
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-
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- /**
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- * The maximum number of query terms that will be included in any generated query. Defaults to <tt>25</tt>.
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- */
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- public MoreLikeThisRequest maxQueryTerms(int maxQueryTerms) {
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- this.maxQueryTerms = maxQueryTerms;
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- return this;
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- }
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-
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- /**
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- * The maximum number of query terms that will be included in any generated query. Defaults to <tt>25</tt>.
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- */
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- public int maxQueryTerms() {
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- return this.maxQueryTerms;
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- }
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-
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- /**
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- * Any word in this set is considered "uninteresting" and ignored.
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- * <p/>
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- * <p>Even if your Analyzer allows stopwords, you might want to tell the MoreLikeThis code to ignore them, as
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- * for the purposes of document similarity it seems reasonable to assume that "a stop word is never interesting".
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- * <p/>
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- * <p>Defaults to no stop words.
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- */
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- public MoreLikeThisRequest stopWords(String... stopWords) {
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- this.stopWords = stopWords;
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- return this;
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- }
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-
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- /**
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- * Any word in this set is considered "uninteresting" and ignored.
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- * <p/>
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- * <p>Even if your Analyzer allows stopwords, you might want to tell the MoreLikeThis code to ignore them, as
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- * for the purposes of document similarity it seems reasonable to assume that "a stop word is never interesting".
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- * <p/>
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- * <p>Defaults to no stop words.
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- */
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- public String[] stopWords() {
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- return this.stopWords;
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- }
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-
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- /**
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- * The frequency at which words will be ignored which do not occur in at least this
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- * many docs. Defaults to <tt>5</tt>.
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- */
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- public MoreLikeThisRequest minDocFreq(int minDocFreq) {
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- this.minDocFreq = minDocFreq;
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- return this;
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- }
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-
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- /**
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- * The frequency at which words will be ignored which do not occur in at least this
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- * many docs. Defaults to <tt>5</tt>.
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- */
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- public int minDocFreq() {
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- return this.minDocFreq;
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- }
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-
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- /**
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- * The maximum frequency in which words may still appear. Words that appear
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- * in more than this many docs will be ignored. Defaults to unbounded.
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- */
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- public MoreLikeThisRequest maxDocFreq(int maxDocFreq) {
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- this.maxDocFreq = maxDocFreq;
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- return this;
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- }
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-
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- /**
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- * The maximum frequency in which words may still appear. Words that appear
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- * in more than this many docs will be ignored. Defaults to unbounded.
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- */
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- public int maxDocFreq() {
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- return this.maxDocFreq;
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- }
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-
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- /**
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- * The minimum word length below which words will be ignored. Defaults to <tt>0</tt>.
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- */
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- public MoreLikeThisRequest minWordLength(int minWordLength) {
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- this.minWordLength = minWordLength;
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- return this;
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- }
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-
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- /**
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- * The minimum word length below which words will be ignored. Defaults to <tt>0</tt>.
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- */
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- public int minWordLength() {
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- return this.minWordLength;
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- }
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-
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- /**
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- * The maximum word length above which words will be ignored. Defaults to unbounded.
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- */
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- public MoreLikeThisRequest maxWordLength(int maxWordLength) {
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- this.maxWordLength = maxWordLength;
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- return this;
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- }
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-
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- /**
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- * The maximum word length above which words will be ignored. Defaults to unbounded.
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- */
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- public int maxWordLength() {
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- return this.maxWordLength;
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- }
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-
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- /**
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- * The boost factor to use when boosting terms. Defaults to <tt>1</tt>.
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- */
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- public MoreLikeThisRequest boostTerms(float boostTerms) {
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- this.boostTerms = boostTerms;
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- return this;
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- }
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-
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- /**
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- * The boost factor to use when boosting terms. Defaults to <tt>1</tt>.
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- */
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- public float boostTerms() {
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- return this.boostTerms;
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- }
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-
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- /**
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- * Whether to include the queried document. Defaults to <tt>false</tt>.
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- */
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- public MoreLikeThisRequest include(boolean include) {
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- this.include = include;
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- return this;
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- }
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-
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- /**
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- * Whether to include the queried document. Defaults to <tt>false</tt>.
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- */
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- public boolean include() {
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- return this.include;
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- }
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-
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- /**
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- * An optional search source request allowing to control the search request for the
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- * more like this documents.
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- */
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- public MoreLikeThisRequest searchSource(SearchSourceBuilder sourceBuilder) {
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- this.searchSource = sourceBuilder.buildAsBytes(Requests.CONTENT_TYPE);
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- return this;
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- }
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-
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- /**
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- * An optional search source request allowing to control the search request for the
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- * more like this documents.
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- */
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- public MoreLikeThisRequest searchSource(String searchSource) {
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- this.searchSource = new BytesArray(searchSource);
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- return this;
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- }
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-
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- public MoreLikeThisRequest searchSource(Map searchSource) {
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- try {
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- XContentBuilder builder = XContentFactory.contentBuilder(Requests.CONTENT_TYPE);
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- builder.map(searchSource);
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- return searchSource(builder);
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- } catch (IOException e) {
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- throw new ElasticsearchGenerationException("Failed to generate [" + searchSource + "]", e);
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- }
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- }
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-
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- public MoreLikeThisRequest searchSource(XContentBuilder builder) {
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- this.searchSource = builder.bytes();
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- return this;
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- }
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-
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- /**
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- * An optional search source request allowing to control the search request for the
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- * more like this documents.
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- */
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- public MoreLikeThisRequest searchSource(byte[] searchSource) {
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- return searchSource(searchSource, 0, searchSource.length);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * An optional search source request allowing to control the search request for the
|
|
|
- * more like this documents.
|
|
|
- */
|
|
|
- public MoreLikeThisRequest searchSource(byte[] searchSource, int offset, int length) {
|
|
|
- return searchSource(new BytesArray(searchSource, offset, length));
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * An optional search source request allowing to control the search request for the
|
|
|
- * more like this documents.
|
|
|
- */
|
|
|
- public MoreLikeThisRequest searchSource(BytesReference searchSource) {
|
|
|
- this.searchSource = searchSource;
|
|
|
- return this;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * An optional search source request allowing to control the search request for the
|
|
|
- * more like this documents.
|
|
|
- */
|
|
|
- public BytesReference searchSource() {
|
|
|
- return this.searchSource;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * The search type of the mlt search query.
|
|
|
- */
|
|
|
- public MoreLikeThisRequest searchType(SearchType searchType) {
|
|
|
- this.searchType = searchType;
|
|
|
- return this;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * The search type of the mlt search query.
|
|
|
- */
|
|
|
- public MoreLikeThisRequest searchType(String searchType) {
|
|
|
- return searchType(SearchType.fromString(searchType));
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * The search type of the mlt search query.
|
|
|
- */
|
|
|
- public SearchType searchType() {
|
|
|
- return this.searchType;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * The indices the resulting mlt query will run against. If not set, will run
|
|
|
- * against the index the document was fetched from.
|
|
|
- */
|
|
|
- public MoreLikeThisRequest searchIndices(String... searchIndices) {
|
|
|
- this.searchIndices = searchIndices;
|
|
|
- return this;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * The indices the resulting mlt query will run against. If not set, will run
|
|
|
- * against the index the document was fetched from.
|
|
|
- */
|
|
|
- public String[] searchIndices() {
|
|
|
- return this.searchIndices;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * The types the resulting mlt query will run against. If not set, will run
|
|
|
- * against the type of the document fetched.
|
|
|
- */
|
|
|
- public MoreLikeThisRequest searchTypes(String... searchTypes) {
|
|
|
- this.searchTypes = searchTypes;
|
|
|
- return this;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * The types the resulting mlt query will run against. If not set, will run
|
|
|
- * against the type of the document fetched.
|
|
|
- */
|
|
|
- public String[] searchTypes() {
|
|
|
- return this.searchTypes;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * An optional search scroll request to be able to continue and scroll the search
|
|
|
- * operation.
|
|
|
- */
|
|
|
- public MoreLikeThisRequest searchScroll(Scroll searchScroll) {
|
|
|
- this.searchScroll = searchScroll;
|
|
|
- return this;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * An optional search scroll request to be able to continue and scroll the search
|
|
|
- * operation.
|
|
|
- */
|
|
|
- public Scroll searchScroll() {
|
|
|
- return this.searchScroll;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * The number of documents to return, defaults to 10.
|
|
|
- */
|
|
|
- public MoreLikeThisRequest searchSize(int size) {
|
|
|
- this.searchSize = size;
|
|
|
- return this;
|
|
|
- }
|
|
|
-
|
|
|
- public int searchSize() {
|
|
|
- return this.searchSize;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * From which search result set to return.
|
|
|
- */
|
|
|
- public MoreLikeThisRequest searchFrom(int from) {
|
|
|
- this.searchFrom = from;
|
|
|
- return this;
|
|
|
- }
|
|
|
-
|
|
|
- public int searchFrom() {
|
|
|
- return this.searchFrom;
|
|
|
- }
|
|
|
-
|
|
|
- @Override
|
|
|
- public ActionRequestValidationException validate() {
|
|
|
- ActionRequestValidationException validationException = null;
|
|
|
- if (index == null) {
|
|
|
- validationException = ValidateActions.addValidationError("index is missing", validationException);
|
|
|
- }
|
|
|
- if (type == null) {
|
|
|
- validationException = ValidateActions.addValidationError("type is missing", validationException);
|
|
|
- }
|
|
|
- if (id == null) {
|
|
|
- validationException = ValidateActions.addValidationError("id is missing", validationException);
|
|
|
- }
|
|
|
- return validationException;
|
|
|
- }
|
|
|
-
|
|
|
- @Override
|
|
|
- public void readFrom(StreamInput in) throws IOException {
|
|
|
- super.readFrom(in);
|
|
|
- index = in.readString();
|
|
|
- type = in.readString();
|
|
|
- id = in.readString();
|
|
|
- // no need to pass threading over the network, they are always false when coming throw a thread pool
|
|
|
- int size = in.readVInt();
|
|
|
- if (size == 0) {
|
|
|
- fields = Strings.EMPTY_ARRAY;
|
|
|
- } else {
|
|
|
- fields = new String[size];
|
|
|
- for (int i = 0; i < size; i++) {
|
|
|
- fields[i] = in.readString();
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- minimumShouldMatch(in.readString());
|
|
|
-
|
|
|
- minTermFreq = in.readVInt();
|
|
|
- maxQueryTerms = in.readVInt();
|
|
|
- size = in.readVInt();
|
|
|
- if (size > 0) {
|
|
|
- stopWords = new String[size];
|
|
|
- for (int i = 0; i < size; i++) {
|
|
|
- stopWords[i] = in.readString();
|
|
|
- }
|
|
|
- }
|
|
|
- minDocFreq = in.readVInt();
|
|
|
- maxDocFreq = in.readVInt();
|
|
|
- minWordLength = in.readVInt();
|
|
|
- maxWordLength = in.readVInt();
|
|
|
- boostTerms = in.readFloat();
|
|
|
- include = in.readBoolean();
|
|
|
-
|
|
|
- searchType = SearchType.fromId(in.readByte());
|
|
|
- size = in.readVInt();
|
|
|
- if (size == 0) {
|
|
|
- searchIndices = null;
|
|
|
- } else if (size == 1) {
|
|
|
- searchIndices = Strings.EMPTY_ARRAY;
|
|
|
- } else {
|
|
|
- searchIndices = new String[size - 1];
|
|
|
- for (int i = 0; i < searchIndices.length; i++) {
|
|
|
- searchIndices[i] = in.readString();
|
|
|
- }
|
|
|
- }
|
|
|
- size = in.readVInt();
|
|
|
- if (size == 0) {
|
|
|
- searchTypes = null;
|
|
|
- } else if (size == 1) {
|
|
|
- searchTypes = Strings.EMPTY_ARRAY;
|
|
|
- } else {
|
|
|
- searchTypes = new String[size - 1];
|
|
|
- for (int i = 0; i < searchTypes.length; i++) {
|
|
|
- searchTypes[i] = in.readString();
|
|
|
- }
|
|
|
- }
|
|
|
- if (in.readBoolean()) {
|
|
|
- searchScroll = readScroll(in);
|
|
|
- }
|
|
|
-
|
|
|
- searchSource = in.readBytesReference();
|
|
|
-
|
|
|
- searchSize = in.readVInt();
|
|
|
- searchFrom = in.readVInt();
|
|
|
- routing = in.readOptionalString();
|
|
|
- }
|
|
|
-
|
|
|
- @Override
|
|
|
- public void writeTo(StreamOutput out) throws IOException {
|
|
|
- super.writeTo(out);
|
|
|
- out.writeString(index);
|
|
|
- out.writeString(type);
|
|
|
- out.writeString(id);
|
|
|
- if (fields == null) {
|
|
|
- out.writeVInt(0);
|
|
|
- } else {
|
|
|
- out.writeVInt(fields.length);
|
|
|
- for (String field : fields) {
|
|
|
- out.writeString(field);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- out.writeString(minimumShouldMatch);
|
|
|
-
|
|
|
- out.writeVInt(minTermFreq);
|
|
|
- out.writeVInt(maxQueryTerms);
|
|
|
- if (stopWords == null) {
|
|
|
- out.writeVInt(0);
|
|
|
- } else {
|
|
|
- out.writeVInt(stopWords.length);
|
|
|
- for (String stopWord : stopWords) {
|
|
|
- out.writeString(stopWord);
|
|
|
- }
|
|
|
- }
|
|
|
- out.writeVInt(minDocFreq);
|
|
|
- out.writeVInt(maxDocFreq);
|
|
|
- out.writeVInt(minWordLength);
|
|
|
- out.writeVInt(maxWordLength);
|
|
|
- out.writeFloat(boostTerms);
|
|
|
- out.writeBoolean(include);
|
|
|
-
|
|
|
- out.writeByte(searchType.id());
|
|
|
- if (searchIndices == null) {
|
|
|
- out.writeVInt(0);
|
|
|
- } else {
|
|
|
- out.writeVInt(searchIndices.length + 1);
|
|
|
- for (String index : searchIndices) {
|
|
|
- out.writeString(index);
|
|
|
- }
|
|
|
- }
|
|
|
- if (searchTypes == null) {
|
|
|
- out.writeVInt(0);
|
|
|
- } else {
|
|
|
- out.writeVInt(searchTypes.length + 1);
|
|
|
- for (String type : searchTypes) {
|
|
|
- out.writeString(type);
|
|
|
- }
|
|
|
- }
|
|
|
- if (searchScroll == null) {
|
|
|
- out.writeBoolean(false);
|
|
|
- } else {
|
|
|
- out.writeBoolean(true);
|
|
|
- searchScroll.writeTo(out);
|
|
|
- }
|
|
|
- out.writeBytesReference(searchSource);
|
|
|
-
|
|
|
- out.writeVInt(searchSize);
|
|
|
- out.writeVInt(searchFrom);
|
|
|
- out.writeOptionalString(routing);
|
|
|
- }
|
|
|
-}
|
Alex Ksikes