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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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 com.arakelian.elastic.model.search;

import java.io.Serializable;
import java.util.List;

import org.immutables.value.Value;

import com.arakelian.core.feature.Nullable;
import com.arakelian.elastic.model.aggs.Aggregation;
import com.arakelian.elastic.model.search.Highlighter.Highlight;
import com.fasterxml.jackson.annotation.JsonPropertyOrder;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import com.google.common.collect.ImmutableList;

@Value.Immutable
@JsonSerialize(as = ImmutableSearch.class)
@JsonDeserialize(builder = ImmutableSearch.Builder.class)
@JsonPropertyOrder({ "scroll", "scrollId", "from", "size", "searchType", "terminateAfter", "sourceFilter",
        "query", "sort", "aggregation", "version", "explain", "batchedReduceSize", "preference" })
@Value.Style(from = "using", get = { "is*", "get*" }, depluralize = true)
public interface Search extends Serializable {
    @Value.Default
    public default List getAggregations() {
        return ImmutableList.of();
    }

    @Nullable
    public Integer getBatchedReduceSize();

    @Nullable
    public Integer getFrom();

    @Nullable
    public Highlight getHighlight();

    @Nullable
    public String getPreference();

    @Nullable
    public Query getQuery();

    @Nullable
    public String getScroll();

    @Nullable
    public String getScrollId();

    @Nullable
    public SearchType getSearchType();

    @Nullable
    public Integer getSize();

    @Value.Default
    public default List getSorts() {
        return ImmutableList.of();
    }

    @Nullable
    public SourceFilter getSourceFilter();

    /**
     * Returns the maximum number of documents to collect for each shard, upon reaching which the
     * query execution will terminate early. If set, the response will have a boolean field
     * terminated_early to indicate whether the query execution has actually terminated_early.
     *
     * @return the maximum number of documents to collect for each shard
     */
    @Nullable
    public Integer getTerminateAfter();

    @Nullable
    public Boolean isExplain();

    /**
     * Returns true to enable caching of search results for requests where size is 0, ie
     * aggregations and suggestions (no top hits returned).
     *
     * @return true to enable caching of search results
     */
    @Nullable
    public Boolean isRequestCache();

    @Nullable
    public Boolean isVersion();
}