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/*
 * Copyright 2008-present MongoDB, Inc.
 *
 * Licensed 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.mongodb.client.model;

import com.mongodb.MongoNamespace;
import com.mongodb.lang.Nullable;
import org.bson.BsonBoolean;
import org.bson.BsonDocument;
import org.bson.BsonDocumentWriter;
import org.bson.BsonInt32;
import org.bson.BsonString;
import org.bson.BsonValue;
import org.bson.codecs.configuration.CodecRegistry;
import org.bson.conversions.Bson;
import java.util.List;
import static java.util.Arrays.asList;
import static org.bson.assertions.Assertions.notNull;

/**
 *  Builders for aggregation pipeline stages.
 *
 *  @mongodb.driver.manual core/aggregation-pipeline/ Aggregation pipeline
 *  @mongodb.server.release 2.2
 *  @since 3.1
 *
 * @deprecated Usage of this API is not supported in AEM as a Cloud Service.
 */
@Deprecated(since = "2021-05-27")
public final class Aggregates {

    /**
     * Creates an $addFields pipeline stage
     *
     * @param fields        the fields to add
     * @return the $addFields pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/addFields/ $addFields
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static Bson addFields(final Field... fields) {
        return addFields(asList(fields));
    }

    /**
     * Creates an $addFields pipeline stage
     *
     * @param fields        the fields to add
     * @return the $addFields pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/addFields/ $addFields
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static Bson addFields(final List> fields) {
        return new AddFieldsStage(fields);
    }

    /**
     * Creates a $bucket pipeline stage
     *
     * @param  the groupBy expression type
     * @param     the boundary type
     * @param groupBy       the criteria to group By
     * @param boundaries    the boundaries of the buckets
     * @return the $bucket pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/bucket/ $bucket
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static  Bson bucket(final TExpression groupBy, final List boundaries) {
        return bucket(groupBy, boundaries, new BucketOptions());
    }

    /**
     * Creates a $bucket pipeline stage
     *
     * @param  the groupBy expression type
     * @param     the boundary type
     * @param groupBy       the criteria to group By
     * @param boundaries    the boundaries of the buckets
     * @param options       the optional values for the $bucket stage
     * @return the $bucket pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/bucket/ $bucket
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static  Bson bucket(final TExpression groupBy, final List boundaries, final BucketOptions options) {
        return new BucketStage(groupBy, boundaries, options);
    }

    /**
     * Creates a $bucketAuto pipeline stage
     *
     * @param  the groupBy expression type
     * @param groupBy       the criteria to group By
     * @param buckets       the number of the buckets
     * @return the $bucketAuto pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/bucketAuto/ $bucketAuto
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static  Bson bucketAuto(final TExpression groupBy, final int buckets) {
        return bucketAuto(groupBy, buckets, new BucketAutoOptions());
    }

    /**
     * Creates a $bucketAuto pipeline stage
     *
     * @param  the groupBy expression type
     * @param groupBy       the criteria to group By
     * @param buckets       the number of the buckets
     * @param options       the optional values for the $bucketAuto stage
     * @return the $bucketAuto pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/bucketAuto/ $bucketAuto
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static  Bson bucketAuto(final TExpression groupBy, final int buckets, final BucketAutoOptions options) {
        return new BucketAutoStage(groupBy, buckets, options);
    }

    /**
     * Creates a $count pipeline stage using the field name "count" to store the result
     *
     * @return the $count pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/count/ $count
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static Bson count() {
        return count("count");
    }

    /**
     * Creates a $count pipeline stage using the named field to store the result
     *
     * @param field the field in which to store the count
     * @return the $count pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/count/ $count
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static Bson count(final String field) {
        return new BsonDocument("$count", new BsonString(field));
    }

    /**
     * Creates a $match pipeline stage for the specified filter
     *
     * @param filter the filter to match
     * @return the $match pipeline stage
     * @see Filters
     * @mongodb.driver.manual reference/operator/aggregation/match/ $match
     */
    public static Bson match(final Bson filter) {
        return new SimplePipelineStage("$match", filter);
    }

    /**
     * Creates a $project pipeline stage for the specified projection
     *
     * @param projection the projection
     * @return the $project pipeline stage
     * @see Projections
     * @mongodb.driver.manual reference/operator/aggregation/project/ $project
     */
    public static Bson project(final Bson projection) {
        return new SimplePipelineStage("$project", projection);
    }

    /**
     * Creates a $sort pipeline stage for the specified sort specification
     *
     * @param sort the sort specification
     * @return the $sort pipeline stage
     * @see Sorts
     * @mongodb.driver.manual reference/operator/aggregation/sort/#sort-aggregation $sort
     */
    public static Bson sort(final Bson sort) {
        return new SimplePipelineStage("$sort", sort);
    }

    /**
     * Creates a $sortByCount pipeline stage for the specified filter
     *
     * @param  the expression type
     * @param filter        the filter specification
     * @return the $sortByCount pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/sortByCount/ $sortByCount
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static  Bson sortByCount(final TExpression filter) {
        return new SortByCountStage(filter);
    }

    /**
     * Creates a $skip pipeline stage
     *
     * @param skip the number of documents to skip
     * @return the $skip pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/skip/ $skip
     */
    public static Bson skip(final int skip) {
        return new BsonDocument("$skip", new BsonInt32(skip));
    }

    /**
     * Creates a $limit pipeline stage for the specified filter
     *
     * @param limit the limit
     * @return the $limit pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/limit/  $limit
     */
    public static Bson limit(final int limit) {
        return new BsonDocument("$limit", new BsonInt32(limit));
    }

    /**
     * Creates a $lookup pipeline stage, joining the current collection with the one specified in from
     * using equality match between the local field and the foreign field
     *
     * @param from         the name of the collection in the same database to perform the join with.
     * @param localField   the field from the local collection to match values against.
     * @param foreignField the field in the from collection to match values against.
     * @param as           the name of the new array field to add to the input documents.
     * @return the $lookup pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/lookup/ $lookup
     * @mongodb.server.release 3.2
     * @since 3.2
     */
    public static Bson lookup(final String from, final String localField, final String foreignField, final String as) {
        return new BsonDocument("$lookup", new BsonDocument("from", new BsonString(from)).append("localField", new BsonString(localField)).append("foreignField", new BsonString(foreignField)).append("as", new BsonString(as)));
    }

    /**
     * Creates a $lookup pipeline stage, joining the current collection with the one specified in from using the given pipeline
     *
     * @param from          the name of the collection in the same database to perform the join with.
     * @param pipeline      the pipeline to run on the joined collection.
     * @param as            the name of the new array field to add to the input documents.
     * @return the $lookup pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/lookup/ $lookup
     * @mongodb.server.release 3.6
     * @since 3.7
     */
    public static Bson lookup(final String from, final List pipeline, final String as) {
        return lookup(from, null, pipeline, as);
    }

    /**
     * Creates a $lookup pipeline stage, joining the current collection with the one specified in from using the given pipeline
     *
     * @param  the Variable value expression type
     * @param from          the name of the collection in the same database to perform the join with.
     * @param let           the variables to use in the pipeline field stages.
     * @param pipeline      the pipeline to run on the joined collection.
     * @param as            the name of the new array field to add to the input documents.
     * @return the $lookup pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/lookup/ $lookup
     * @mongodb.server.release 3.6
     * @since 3.7
     */
    public static  Bson lookup(final String from, @Nullable final List> let, final List pipeline, final String as) {
        return new LookupStage(from, let, pipeline, as);
    }

    /**
     * Creates a facet pipeline stage
     *
     * @param facets the facets to use
     * @return the new pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/facet/ $facet
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static Bson facet(final List facets) {
        return new FacetStage(facets);
    }

    /**
     * Creates a facet pipeline stage
     *
     * @param facets the facets to use
     * @return the new pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/facet/ $facet
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static Bson facet(final Facet... facets) {
        return new FacetStage(asList(facets));
    }

    /**
     * Creates a graphLookup pipeline stage for the specified filter
     *
     * @param      the expression type
     * @param from             the collection to query
     * @param startWith        the expression to start the graph lookup with
     * @param connectFromField the from field
     * @param connectToField   the to field
     * @param as               name of field in output document
     * @return the $graphLookup pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/graphLookup/ $graphLookup
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static  Bson graphLookup(final String from, final TExpression startWith, final String connectFromField, final String connectToField, final String as) {
        return graphLookup(from, startWith, connectFromField, connectToField, as, new GraphLookupOptions());
    }

    /**
     * Creates a graphLookup pipeline stage for the specified filter
     *
     * @param     the expression type
     * @param from             the collection to query
     * @param startWith        the expression to start the graph lookup with
     * @param connectFromField the from field
     * @param connectToField   the to field
     * @param as               name of field in output document
     * @param options          optional values for the graphLookup
     * @return the $graphLookup pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/graphLookup/ $graphLookup
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static  Bson graphLookup(final String from, final TExpression startWith, final String connectFromField, final String connectToField, final String as, final GraphLookupOptions options) {
        notNull("options", options);
        return new GraphLookupStage(from, startWith, connectFromField, connectToField, as, options);
    }

    /**
     * Creates a $group pipeline stage for the specified filter
     *
     * @param      the expression type
     * @param id                the id expression for the group, which may be null
     * @param fieldAccumulators zero or more field accumulator pairs
     * @return the $group pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/group/ $group
     * @mongodb.driver.manual meta/aggregation-quick-reference/#aggregation-expressions Expressions
     */
    public static  Bson group(@Nullable final TExpression id, final BsonField... fieldAccumulators) {
        return group(id, asList(fieldAccumulators));
    }

    /**
     * Creates a $group pipeline stage for the specified filter
     *
     * @param      the expression type
     * @param id                the id expression for the group, which may be null
     * @param fieldAccumulators zero or more field accumulator pairs
     * @return the $group pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/group/ $group
     * @mongodb.driver.manual meta/aggregation-quick-reference/#aggregation-expressions Expressions
     */
    public static  Bson group(@Nullable final TExpression id, final List fieldAccumulators) {
        return new GroupStage(id, fieldAccumulators);
    }

    /**
     * Creates a $unwind pipeline stage for the specified field name, which must be prefixed by a {@code '$'} sign.
     *
     * @param fieldName the field name, prefixed by a {@code '$' sign}
     * @return the $unwind pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/unwind/ $unwind
     */
    public static Bson unwind(final String fieldName) {
        return new BsonDocument("$unwind", new BsonString(fieldName));
    }

    /**
     * Creates a $unwind pipeline stage for the specified field name, which must be prefixed by a {@code '$'} sign.
     *
     * @param fieldName     the field name, prefixed by a {@code '$' sign}
     * @param unwindOptions options for the unwind pipeline stage
     * @return the $unwind pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/unwind/ $unwind
     * @mongodb.server.release 3.2
     * @since 3.2
     */
    public static Bson unwind(final String fieldName, final UnwindOptions unwindOptions) {
        notNull("unwindOptions", unwindOptions);
        BsonDocument options = new BsonDocument("path", new BsonString(fieldName));
        Boolean preserveNullAndEmptyArrays = unwindOptions.isPreserveNullAndEmptyArrays();
        if (preserveNullAndEmptyArrays != null) {
            options.append("preserveNullAndEmptyArrays", BsonBoolean.valueOf(preserveNullAndEmptyArrays));
        }
        String includeArrayIndex = unwindOptions.getIncludeArrayIndex();
        if (includeArrayIndex != null) {
            options.append("includeArrayIndex", new BsonString(includeArrayIndex));
        }
        return new BsonDocument("$unwind", options);
    }

    /**
     * Creates a $out pipeline stage that writes into the specified collection
     *
     * @param collectionName the collection name
     * @return the $out pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/out/  $out
     * @mongodb.server.release 2.6
     */
    public static Bson out(final String collectionName) {
        return new BsonDocument("$out", new BsonString(collectionName));
    }

    /**
     * Creates a $merge pipeline stage that merges into the specified collection
     *
     * @param collectionName the name of the collection to merge into
     * @return the $merge pipeline stage
     * @since 3.11
     * @mongodb.driver.manual reference/operator/aggregation/merge/  $merge
     * @mongodb.server.release 4.2
     */
    public static Bson merge(final String collectionName) {
        return merge(collectionName, new MergeOptions());
    }

    /**
     * Creates a $merge pipeline stage that merges into the specified namespace
     *
     * @param namespace the namespace to merge into
     * @return the $merge pipeline stage
     * @since 3.11
     * @mongodb.driver.manual reference/operator/aggregation/merge/  $merge
     * @mongodb.server.release 4.2
     */
    public static Bson merge(final MongoNamespace namespace) {
        return merge(namespace, new MergeOptions());
    }

    /**
     * Creates a $merge pipeline stage that merges into the specified collection using the specified options.
     *
     * @param collectionName the name of the collection to merge into
     * @param options the merge options
     * @return the $merge pipeline stage
     * @since 3.11
     * @mongodb.driver.manual reference/operator/aggregation/merge/  $merge
     * @mongodb.server.release 4.2
     */
    public static Bson merge(final String collectionName, final MergeOptions options) {
        return new MergeStage(new BsonString(collectionName), options);
    }

    /**
     * Creates a $merge pipeline stage that merges into the specified namespace using the specified options.
     *
     * @param namespace the namespace to merge into
     * @param options the merge options
     * @return the $merge pipeline stage
     * @since 3.11
     * @mongodb.driver.manual reference/operator/aggregation/merge/  $merge
     * @mongodb.server.release 4.2
     */
    public static Bson merge(final MongoNamespace namespace, final MergeOptions options) {
        return new MergeStage(new BsonDocument("db", new BsonString(namespace.getDatabaseName())).append("coll", new BsonString(namespace.getCollectionName())), options);
    }

    /**
     * Creates a $replaceRoot pipeline stage
     *
     * @param  the new root type
     * @param value         the new root value
     * @return the $replaceRoot pipeline stage
     * @mongodb.driver.manual reference/operator/aggregation/replaceRoot/ $replaceRoot
     * @mongodb.server.release 3.4
     * @since 3.4
     */
    public static  Bson replaceRoot(final TExpression value) {
        return new ReplaceStage(value);
    }

    /**
     * Creates a $replaceRoot pipeline stage
     *
     * 

With $replaceWith, you can promote an embedded document to the top-level. * You can also specify a new document as the replacement.

* *

The $replaceWith is an alias for {@link #replaceRoot(Object)}.

* * @param the new root type * @param value the new root value * @return the $replaceRoot pipeline stage * @mongodb.driver.manual reference/operator/aggregation/replaceWith/ $replaceWith * @mongodb.server.release 4.2 * @since 3.11 */ public static Bson replaceWith(final TExpression value) { return new ReplaceStage(value, true); } /** * Creates a $sample pipeline stage with the specified sample size * * @param size the sample size * @return the $sample pipeline stage * @mongodb.driver.manual reference/operator/aggregation/sample/ $sample * @mongodb.server.release 3.2 * @since 3.2 */ public static Bson sample(final int size) { return new BsonDocument("$sample", new BsonDocument("size", new BsonInt32(size))); } static void writeBucketOutput(final CodecRegistry codecRegistry, final BsonDocumentWriter writer, @Nullable final List output) { if (output != null) { writer.writeName("output"); writer.writeStartDocument(); for (BsonField field : output) { writer.writeName(field.getName()); BuildersHelper.encodeValue(writer, field.getValue(), codecRegistry); } writer.writeEndDocument(); } } // @deprecated Usage of this API is not supported in AEM as a Cloud Service. @Deprecated(since = "2021-05-27") private static class SimplePipelineStage implements Bson { private final String name; private final Bson value; SimplePipelineStage(final String name, final Bson value) { this.name = name; this.value = value; } @Override public BsonDocument toBsonDocument(final Class documentClass, final CodecRegistry codecRegistry) { return new BsonDocument(name, value.toBsonDocument(documentClass, codecRegistry)); } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } SimplePipelineStage that = (SimplePipelineStage) o; if (name != null ? !name.equals(that.name) : that.name != null) { return false; } return value != null ? value.equals(that.value) : that.value == null; } @Override public int hashCode() { int result = name != null ? name.hashCode() : 0; result = 31 * result + (value != null ? value.hashCode() : 0); return result; } @Override public String toString() { return "Stage{" + "name='" + name + '\'' + ", value=" + value + '}'; } } // @deprecated Usage of this API is not supported in AEM as a Cloud Service. @Deprecated(since = "2021-05-27") private static final class BucketStage implements Bson { private final TExpression groupBy; private final List boundaries; private final BucketOptions options; BucketStage(final TExpression groupBy, final List boundaries, final BucketOptions options) { notNull("options", options); this.groupBy = groupBy; this.boundaries = boundaries; this.options = options; } @Override public BsonDocument toBsonDocument(final Class tDocumentClass, final CodecRegistry codecRegistry) { BsonDocumentWriter writer = new BsonDocumentWriter(new BsonDocument()); writer.writeStartDocument(); writer.writeStartDocument("$bucket"); writer.writeName("groupBy"); BuildersHelper.encodeValue(writer, groupBy, codecRegistry); writer.writeStartArray("boundaries"); for (TBoundary boundary : boundaries) { BuildersHelper.encodeValue(writer, boundary, codecRegistry); } writer.writeEndArray(); Object defaultBucket = options.getDefaultBucket(); if (defaultBucket != null) { writer.writeName("default"); BuildersHelper.encodeValue(writer, defaultBucket, codecRegistry); } writeBucketOutput(codecRegistry, writer, options.getOutput()); writer.writeEndDocument(); return writer.getDocument(); } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } BucketStage that = (BucketStage) o; if (groupBy != null ? !groupBy.equals(that.groupBy) : that.groupBy != null) { return false; } if (boundaries != null ? !boundaries.equals(that.boundaries) : that.boundaries != null) { return false; } return options.equals(that.options); } @Override public int hashCode() { int result = groupBy != null ? groupBy.hashCode() : 0; result = 31 * result + (boundaries != null ? boundaries.hashCode() : 0); result = 31 * result + options.hashCode(); return result; } @Override public String toString() { return "Stage{" + "name='$bucket'" + ", boundaries=" + boundaries + ", groupBy=" + groupBy + ", options=" + options + '}'; } } // @deprecated Usage of this API is not supported in AEM as a Cloud Service. @Deprecated(since = "2021-05-27") private static final class BucketAutoStage implements Bson { private final TExpression groupBy; private final int buckets; private final BucketAutoOptions options; BucketAutoStage(final TExpression groupBy, final int buckets, final BucketAutoOptions options) { notNull("options", options); this.groupBy = groupBy; this.buckets = buckets; this.options = options; } @Override public BsonDocument toBsonDocument(final Class tDocumentClass, final CodecRegistry codecRegistry) { BsonDocumentWriter writer = new BsonDocumentWriter(new BsonDocument()); writer.writeStartDocument(); writer.writeStartDocument("$bucketAuto"); writer.writeName("groupBy"); BuildersHelper.encodeValue(writer, groupBy, codecRegistry); writer.writeInt32("buckets", buckets); writeBucketOutput(codecRegistry, writer, options.getOutput()); BucketGranularity granularity = options.getGranularity(); if (granularity != null) { writer.writeString("granularity", granularity.getValue()); } writer.writeEndDocument(); return writer.getDocument(); } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } BucketAutoStage that = (BucketAutoStage) o; if (buckets != that.buckets) { return false; } if (groupBy != null ? !groupBy.equals(that.groupBy) : that.groupBy != null) { return false; } return options.equals(that.options); } @Override public int hashCode() { int result = groupBy != null ? groupBy.hashCode() : 0; result = 31 * result + buckets; result = 31 * result + options.hashCode(); return result; } @Override public String toString() { return "Stage{" + "name='$bucketAuto'" + ", buckets=" + buckets + ", groupBy=" + groupBy + ", options=" + options + '}'; } } // @deprecated Usage of this API is not supported in AEM as a Cloud Service. @Deprecated(since = "2021-05-27") private static final class LookupStage implements Bson { private final String from; private final List> let; private final List pipeline; private final String as; private LookupStage(final String from, @Nullable final List> let, final List pipeline, final String as) { this.from = from; this.let = let; this.pipeline = pipeline; this.as = as; } @Override public BsonDocument toBsonDocument(final Class tDocumentClass, final CodecRegistry codecRegistry) { BsonDocumentWriter writer = new BsonDocumentWriter(new BsonDocument()); writer.writeStartDocument(); writer.writeStartDocument("$lookup"); writer.writeString("from", from); if (let != null) { writer.writeStartDocument("let"); for (Variable variable : let) { writer.writeName(variable.getName()); BuildersHelper.encodeValue(writer, variable.getValue(), codecRegistry); } writer.writeEndDocument(); } writer.writeName("pipeline"); writer.writeStartArray(); for (Bson stage : pipeline) { BuildersHelper.encodeValue(writer, stage, codecRegistry); } writer.writeEndArray(); writer.writeString("as", as); writer.writeEndDocument(); return writer.getDocument(); } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } LookupStage that = (LookupStage) o; if (from != null ? !from.equals(that.from) : that.from != null) { return false; } if (let != null ? !let.equals(that.let) : that.let != null) { return false; } if (pipeline != null ? !pipeline.equals(that.pipeline) : that.pipeline != null) { return false; } return as != null ? as.equals(that.as) : that.as == null; } @Override public int hashCode() { int result = from != null ? from.hashCode() : 0; result = 31 * result + (let != null ? let.hashCode() : 0); result = 31 * result + (pipeline != null ? pipeline.hashCode() : 0); result = 31 * result + (as != null ? as.hashCode() : 0); return result; } @Override public String toString() { return "Stage{" + "name='$lookup'" + ", from='" + from + '\'' + ", let=" + let + ", pipeline=" + pipeline + ", as='" + as + '\'' + '}'; } } // @deprecated Usage of this API is not supported in AEM as a Cloud Service. @Deprecated(since = "2021-05-27") private static final class GraphLookupStage implements Bson { private final String from; private final TExpression startWith; private final String connectFromField; private final String connectToField; private final String as; private final GraphLookupOptions options; private GraphLookupStage(final String from, final TExpression startWith, final String connectFromField, final String connectToField, final String as, final GraphLookupOptions options) { this.from = from; this.startWith = startWith; this.connectFromField = connectFromField; this.connectToField = connectToField; this.as = as; this.options = options; } @Override public BsonDocument toBsonDocument(final Class tDocumentClass, final CodecRegistry codecRegistry) { BsonDocumentWriter writer = new BsonDocumentWriter(new BsonDocument()); writer.writeStartDocument(); writer.writeStartDocument("$graphLookup"); writer.writeString("from", from); writer.writeName("startWith"); BuildersHelper.encodeValue(writer, startWith, codecRegistry); writer.writeString("connectFromField", connectFromField); writer.writeString("connectToField", connectToField); writer.writeString("as", as); Integer maxDepth = options.getMaxDepth(); if (maxDepth != null) { writer.writeInt32("maxDepth", maxDepth); } String depthField = options.getDepthField(); if (depthField != null) { writer.writeString("depthField", depthField); } Bson restrictSearchWithMatch = options.getRestrictSearchWithMatch(); if (restrictSearchWithMatch != null) { writer.writeName("restrictSearchWithMatch"); BuildersHelper.encodeValue(writer, restrictSearchWithMatch, codecRegistry); } writer.writeEndDocument(); return writer.getDocument(); } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } GraphLookupStage that = (GraphLookupStage) o; if (from != null ? !from.equals(that.from) : that.from != null) { return false; } if (startWith != null ? !startWith.equals(that.startWith) : that.startWith != null) { return false; } if (connectFromField != null ? !connectFromField.equals(that.connectFromField) : that.connectFromField != null) { return false; } if (connectToField != null ? !connectToField.equals(that.connectToField) : that.connectToField != null) { return false; } if (as != null ? !as.equals(that.as) : that.as != null) { return false; } return options != null ? options.equals(that.options) : that.options == null; } @Override public int hashCode() { int result = from != null ? from.hashCode() : 0; result = 31 * result + (startWith != null ? startWith.hashCode() : 0); result = 31 * result + (connectFromField != null ? connectFromField.hashCode() : 0); result = 31 * result + (connectToField != null ? connectToField.hashCode() : 0); result = 31 * result + (as != null ? as.hashCode() : 0); result = 31 * result + (options != null ? options.hashCode() : 0); return result; } @Override public String toString() { return "Stage{" + "name='$graphLookup'" + ", as='" + as + '\'' + ", connectFromField='" + connectFromField + '\'' + ", connectToField='" + connectToField + '\'' + ", from='" + from + '\'' + ", options=" + options + ", startWith=" + startWith + '}'; } } // @deprecated Usage of this API is not supported in AEM as a Cloud Service. @Deprecated(since = "2021-05-27") private static class GroupStage implements Bson { private final TExpression id; private final List fieldAccumulators; GroupStage(final TExpression id, final List fieldAccumulators) { this.id = id; this.fieldAccumulators = fieldAccumulators; } @Override public BsonDocument toBsonDocument(final Class tDocumentClass, final CodecRegistry codecRegistry) { BsonDocumentWriter writer = new BsonDocumentWriter(new BsonDocument()); writer.writeStartDocument(); writer.writeStartDocument("$group"); writer.writeName("_id"); BuildersHelper.encodeValue(writer, id, codecRegistry); for (BsonField fieldAccumulator : fieldAccumulators) { writer.writeName(fieldAccumulator.getName()); BuildersHelper.encodeValue(writer, fieldAccumulator.getValue(), codecRegistry); } writer.writeEndDocument(); writer.writeEndDocument(); return writer.getDocument(); } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } GroupStage that = (GroupStage) o; if (id != null ? !id.equals(that.id) : that.id != null) { return false; } return fieldAccumulators != null ? fieldAccumulators.equals(that.fieldAccumulators) : that.fieldAccumulators == null; } @Override public int hashCode() { int result = id != null ? id.hashCode() : 0; result = 31 * result + (fieldAccumulators != null ? fieldAccumulators.hashCode() : 0); return result; } @Override public String toString() { return "Stage{" + "name='$group'" + ", id=" + id + ", fieldAccumulators=" + fieldAccumulators + '}'; } } // @deprecated Usage of this API is not supported in AEM as a Cloud Service. @Deprecated(since = "2021-05-27") private static class SortByCountStage implements Bson { private final TExpression filter; SortByCountStage(final TExpression filter) { this.filter = filter; } @Override public BsonDocument toBsonDocument(final Class tDocumentClass, final CodecRegistry codecRegistry) { BsonDocumentWriter writer = new BsonDocumentWriter(new BsonDocument()); writer.writeStartDocument(); writer.writeName("$sortByCount"); BuildersHelper.encodeValue(writer, filter, codecRegistry); writer.writeEndDocument(); return writer.getDocument(); } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } SortByCountStage that = (SortByCountStage) o; return filter != null ? filter.equals(that.filter) : that.filter == null; } @Override public int hashCode() { return filter != null ? filter.hashCode() : 0; } @Override public String toString() { return "Stage{" + "name='$sortByCount'" + ", id=" + filter + '}'; } } // @deprecated Usage of this API is not supported in AEM as a Cloud Service. @Deprecated(since = "2021-05-27") private static class FacetStage implements Bson { private final List facets; FacetStage(final List facets) { this.facets = facets; } @Override public BsonDocument toBsonDocument(final Class tDocumentClass, final CodecRegistry codecRegistry) { BsonDocumentWriter writer = new BsonDocumentWriter(new BsonDocument()); writer.writeStartDocument(); writer.writeName("$facet"); writer.writeStartDocument(); for (Facet facet : facets) { writer.writeName(facet.getName()); writer.writeStartArray(); for (Bson bson : facet.getPipeline()) { BuildersHelper.encodeValue(writer, bson, codecRegistry); } writer.writeEndArray(); } writer.writeEndDocument(); writer.writeEndDocument(); return writer.getDocument(); } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } FacetStage that = (FacetStage) o; return facets != null ? facets.equals(that.facets) : that.facets == null; } @Override public int hashCode() { return facets != null ? facets.hashCode() : 0; } @Override public String toString() { return "Stage{" + "name='$facet', " + "facets=" + facets + '}'; } } // @deprecated Usage of this API is not supported in AEM as a Cloud Service. @Deprecated(since = "2021-05-27") private static class AddFieldsStage implements Bson { private final List> fields; AddFieldsStage(final List> fields) { this.fields = fields; } @Override public BsonDocument toBsonDocument(final Class tDocumentClass, final CodecRegistry codecRegistry) { BsonDocumentWriter writer = new BsonDocumentWriter(new BsonDocument()); writer.writeStartDocument(); writer.writeName("$addFields"); writer.writeStartDocument(); for (Field field : fields) { writer.writeName(field.getName()); BuildersHelper.encodeValue(writer, field.getValue(), codecRegistry); } writer.writeEndDocument(); writer.writeEndDocument(); return writer.getDocument(); } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } AddFieldsStage that = (AddFieldsStage) o; return fields != null ? fields.equals(that.fields) : that.fields == null; } @Override public int hashCode() { return fields != null ? fields.hashCode() : 0; } @Override public String toString() { return "Stage{" + "name='$addFields', " + "fields=" + fields + '}'; } } // @deprecated Usage of this API is not supported in AEM as a Cloud Service. @Deprecated(since = "2021-05-27") private static class ReplaceStage implements Bson { private final TExpression value; private final boolean replaceWith; ReplaceStage(final TExpression value) { this(value, false); } ReplaceStage(final TExpression value, final boolean replaceWith) { this.value = value; this.replaceWith = replaceWith; } @Override public BsonDocument toBsonDocument(final Class tDocumentClass, final CodecRegistry codecRegistry) { BsonDocumentWriter writer = new BsonDocumentWriter(new BsonDocument()); writer.writeStartDocument(); if (replaceWith) { writer.writeName("$replaceWith"); BuildersHelper.encodeValue(writer, value, codecRegistry); } else { writer.writeName("$replaceRoot"); writer.writeStartDocument(); writer.writeName("newRoot"); BuildersHelper.encodeValue(writer, value, codecRegistry); writer.writeEndDocument(); } writer.writeEndDocument(); return writer.getDocument(); } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } ReplaceStage that = (ReplaceStage) o; return value != null ? value.equals(that.value) : that.value == null; } @Override public int hashCode() { return value != null ? value.hashCode() : 0; } @Override public String toString() { return "Stage{" + "name='$replaceRoot', " + "value=" + value + '}'; } } // @deprecated Usage of this API is not supported in AEM as a Cloud Service. @Deprecated(since = "2021-05-27") private static class MergeStage implements Bson { private final BsonValue intoValue; private final MergeOptions options; MergeStage(final BsonValue intoValue, final MergeOptions options) { this.intoValue = intoValue; this.options = options; } @Override public BsonDocument toBsonDocument(final Class documentClass, final CodecRegistry codecRegistry) { BsonDocumentWriter writer = new BsonDocumentWriter(new BsonDocument()); writer.writeStartDocument(); writer.writeStartDocument("$merge"); writer.writeName("into"); if (intoValue.isString()) { writer.writeString(intoValue.asString().getValue()); } else { writer.writeStartDocument(); writer.writeString("db", intoValue.asDocument().getString("db").getValue()); writer.writeString("coll", intoValue.asDocument().getString("coll").getValue()); writer.writeEndDocument(); } if (options.getUniqueIdentifier() != null) { if (options.getUniqueIdentifier().size() == 1) { writer.writeString("on", options.getUniqueIdentifier().get(0)); } else { writer.writeStartArray("on"); for (String cur : options.getUniqueIdentifier()) { writer.writeString(cur); } writer.writeEndArray(); } } if (options.getVariables() != null) { writer.writeStartDocument("let"); for (Variable variable : options.getVariables()) { writer.writeName(variable.getName()); BuildersHelper.encodeValue(writer, variable.getValue(), codecRegistry); } writer.writeEndDocument(); } if (options.getWhenMatched() != null) { writer.writeName("whenMatched"); switch(options.getWhenMatched()) { case REPLACE: writer.writeString("replace"); break; case KEEP_EXISTING: writer.writeString("keepExisting"); break; case MERGE: writer.writeString("merge"); break; case PIPELINE: writer.writeStartArray(); for (Bson curStage : options.getWhenMatchedPipeline()) { BuildersHelper.encodeValue(writer, curStage, codecRegistry); } writer.writeEndArray(); break; case FAIL: writer.writeString("fail"); break; default: throw new UnsupportedOperationException("Unexpected value: " + options.getWhenMatched()); } } if (options.getWhenNotMatched() != null) { writer.writeName("whenNotMatched"); switch(options.getWhenNotMatched()) { case INSERT: writer.writeString("insert"); break; case DISCARD: writer.writeString("discard"); break; case FAIL: writer.writeString("fail"); break; default: throw new UnsupportedOperationException("Unexpected value: " + options.getWhenNotMatched()); } } writer.writeEndDocument(); writer.writeEndDocument(); return writer.getDocument(); } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } MergeStage that = (MergeStage) o; if (!intoValue.equals(that.intoValue)) { return false; } if (!options.equals(that.options)) { return false; } return true; } @Override public int hashCode() { int result = intoValue.hashCode(); result = 31 * result + options.hashCode(); return result; } @Override public String toString() { return "Stage{" + "name='$merge', " + ", into=" + intoValue + ", options=" + options + '}'; } } private Aggregates() { } }




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