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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;

import org.bson.types.ObjectId;
import java.util.ArrayList;
import java.util.List;
import static com.mongodb.assertions.Assertions.isTrue;

/**
 *  A bulk write operation.  A bulk write operation consists of an ordered or unordered collection of write requests,
 *  which can be any combination of inserts, updates, replaces, or removes.
 *
 *  @see DBCollection#initializeOrderedBulkOperation()
 *  @see com.mongodb.DBCollection#initializeUnorderedBulkOperation()
 *
 *  @mongodb.server.release 2.6
 *  @mongodb.driver.manual /reference/command/delete/ Delete
 *  @mongodb.driver.manual /reference/command/update/ Update
 *  @mongodb.driver.manual /reference/command/insert/ Insert
 *  @since 2.12
 *
 * @deprecated Usage of this API is not supported in AEM as a Cloud Service.
 */
@Deprecated(since = "2021-05-27")
public class BulkWriteOperation {

    private static final String ID_FIELD_NAME = "_id";

    private final boolean ordered;

    private final DBCollection collection;

    private final List requests = new ArrayList();

    private Boolean bypassDocumentValidation;

    private boolean closed;

    BulkWriteOperation(final boolean ordered, final DBCollection collection) {
        this.ordered = ordered;
        this.collection = collection;
    }

    /**
     * Returns true if this is building an ordered bulk write request.
     *
     * @return whether this is building an ordered bulk write operation
     * @see DBCollection#initializeOrderedBulkOperation()
     * @see DBCollection#initializeUnorderedBulkOperation()
     */
    public boolean isOrdered() {
        return ordered;
    }

    /**
     * Gets whether to bypass document validation, or null if unspecified.  The default is null.
     *
     * @return whether to bypass document validation, or null if unspecified.
     * @since 2.14
     * @mongodb.server.release 3.2
     */
    public Boolean getBypassDocumentValidation() {
        return bypassDocumentValidation;
    }

    /**
     * Sets whether to bypass document validation.
     *
     * @param bypassDocumentValidation whether to bypass document validation, or null if unspecified
     * @since 2.14
     * @mongodb.server.release 3.2
     */
    public void setBypassDocumentValidation(final Boolean bypassDocumentValidation) {
        this.bypassDocumentValidation = bypassDocumentValidation;
    }

    /**
     * Add an insert request to the bulk operation
     *
     * @param document the document to insert
     */
    public void insert(final DBObject document) {
        isTrue("already executed", !closed);
        if (document.get(ID_FIELD_NAME) == null) {
            document.put(ID_FIELD_NAME, new ObjectId());
        }
        addRequest(new InsertRequest(document, collection.getObjectCodec()));
    }

    /**
     * Start building a write request to add to the bulk write operation.  The returned builder can be used to create an update, replace,
     * or remove request with the given query.
     *
     * @param query the query for an update, replace or remove request
     * @return a builder for a single write request
     */
    public BulkWriteRequestBuilder find(final DBObject query) {
        isTrue("already executed", !closed);
        return new BulkWriteRequestBuilder(this, query, collection.getDefaultDBObjectCodec(), collection.getObjectCodec());
    }

    /**
     * Execute the bulk write operation with the default write concern of the collection from which this came.  Note that the
     * continueOnError property of the write concern is ignored.
     *
     * @return the result of the bulk write operation.
     * @throws com.mongodb.BulkWriteException if the write failed due some other failure specific to the write command
     * @throws MongoException if the operation failed for some other reason
     */
    public BulkWriteResult execute() {
        isTrue("already executed", !closed);
        closed = true;
        return collection.executeBulkWriteOperation(ordered, bypassDocumentValidation, requests);
    }

    /**
     * Execute the bulk write operation with the given write concern.  Note that the continueOnError property of the write concern is
     * ignored.
     *
     * @param writeConcern the write concern to apply to the bulk operation.
     * @return the result of the bulk write operation.
     * @throws com.mongodb.BulkWriteException if the write failed due some other failure specific to the write command
     * @throws MongoException if the operation failed for some other reason
     */
    public BulkWriteResult execute(final WriteConcern writeConcern) {
        isTrue("already executed", !closed);
        closed = true;
        return collection.executeBulkWriteOperation(ordered, bypassDocumentValidation, requests, writeConcern);
    }

    void addRequest(final WriteRequest request) {
        isTrue("already executed", !closed);
        requests.add(request);
    }
}