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com.landawn.abacus.util.MongoDBExecutor Maven / Gradle / Ivy

/*
 * Copyright (C) 2015 HaiYang Li
 *
 * 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.landawn.abacus.util;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.TimeUnit;

import org.bson.BSONObject;
import org.bson.BasicBSONObject;
import org.bson.BsonReader;
import org.bson.BsonWriter;
import org.bson.Document;
import org.bson.codecs.BsonTypeClassMap;
import org.bson.codecs.Codec;
import org.bson.codecs.DecoderContext;
import org.bson.codecs.DocumentCodec;
import org.bson.codecs.EncoderContext;
import org.bson.codecs.configuration.CodecRegistries;
import org.bson.codecs.configuration.CodecRegistry;
import org.bson.conversions.Bson;
import org.bson.types.ObjectId;

import com.landawn.abacus.DataSet;
import com.landawn.abacus.DirtyMarker;
import com.landawn.abacus.annotation.Beta;
import com.landawn.abacus.exception.AbacusException;
import com.landawn.abacus.parser.JSONParser;
import com.landawn.abacus.parser.ParserFactory;
import com.landawn.abacus.type.Type;
import com.landawn.abacus.util.stream.Stream;
import com.mongodb.BasicDBObject;
import com.mongodb.MongoClient;
import com.mongodb.bulk.BulkWriteResult;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import com.mongodb.client.MongoIterable;
import com.mongodb.client.model.BulkWriteOptions;
import com.mongodb.client.model.CountOptions;
import com.mongodb.client.model.InsertManyOptions;
import com.mongodb.client.model.UpdateOptions;
import com.mongodb.client.model.WriteModel;
import com.mongodb.client.result.DeleteResult;
import com.mongodb.client.result.UpdateResult;

/**
 * It's a simple wrapper of MongoDB Java client.
 * 
 * 
We recommend to define "id" property in java entity/bean as the object "_id" in MongoDB to keep things as simple as possible.

 *  
 *
 * @since 0.8
 * 
 * @author Haiyang Li
 * 
 * @see com.mongodb.client.model.Filters
 * @see com.mongodb.client.model.Aggregates
 * @see com.mongodb.client.model.Accumulators
 * @see com.mongodb.client.model.Projections
 * @see com.mongodb.client.model.Sorts
 */
public final class MongoDBExecutor {
    /**
     * It's name of object id set in Map/Object array.
     */
    public static final String _ID = "_id";

    /**
     * Property name of id.
     */
    public static final String ID = "id";

    private static final JSONParser jsonParser = ParserFactory.createJSONParser();

    // private static CodecRegistry codecRegistry = CodecRegistries.fromCodecs(new CalendarCodec(), new TimeCodec(), new TimestampCodec());
    private static final CodecRegistry codecRegistry = CodecRegistries.fromRegistries(MongoClient.getDefaultCodecRegistry(), new GeneralCodecRegistry());

    private static final Map, Method> classIdSetMethodPool = new ConcurrentHashMap<>();

    private final Map collExecutorPool = new ConcurrentHashMap<>();

    private final MongoDatabase mongoDB;
    private final AsyncExecutor asyncExecutor;
    private final AsyncMongoDBExecutor asyncDBExecutor;

    public MongoDBExecutor(final MongoDatabase mongoDB) {
        this(mongoDB, new AsyncExecutor(64, 300, TimeUnit.SECONDS));
    }

    public MongoDBExecutor(final MongoDatabase mongoDB, final AsyncExecutor asyncExecutor) {
        this.mongoDB = mongoDB.withCodecRegistry(codecRegistry);
        this.asyncExecutor = asyncExecutor;
        this.asyncDBExecutor = new AsyncMongoDBExecutor(this, this.asyncExecutor);
    }

    public MongoDatabase mongoDB() {
        return mongoDB;
    }

    public AsyncMongoDBExecutor async() {
        return asyncDBExecutor;
    }

    public MongoCollectionExecutor collExecutor(final String collectionName) {
        MongoCollectionExecutor collExecutor = collExecutorPool.get(collectionName);

        if (collExecutor == null) {
            synchronized (collExecutorPool) {
                collExecutor = collExecutorPool.get(collectionName);

                if (collExecutor == null) {
                    collExecutor = new MongoCollectionExecutor(this, mongoDB.getCollection(collectionName), asyncExecutor);

                    collExecutorPool.put(collectionName, collExecutor);
                }
            }
        }

        return collExecutor;
    }

    public MongoCollection collection(final String collectionName) {
        return mongoDB.getCollection(collectionName);
    }

    public  MongoCollection collection(final Class targetClass, final String collectionName) {
        return mongoDB.getCollection(collectionName, targetClass);
    }

    /**
     * The object id ("_id") property will be read from/write to the specified property 
     * @param cls
     * @param idPropertyName
     */
    public static void registerIdProeprty(final Class cls, final String idPropertyName) {
        if (ClassUtil.getPropGetMethod(cls, idPropertyName) == null || ClassUtil.getPropSetMethod(cls, idPropertyName) == null) {
            throw new IllegalArgumentException("The specified class: " + ClassUtil.getCanonicalClassName(cls)
                    + " doesn't have getter or setter method for the specified id propery: " + idPropertyName);
        }

        final Method setMethod = ClassUtil.getPropSetMethod(cls, idPropertyName);
        final Class parameterType = setMethod.getParameterTypes()[0];

        if (!(String.class.isAssignableFrom(parameterType) || ObjectId.class.isAssignableFrom(parameterType))) {
            throw new IllegalArgumentException(
                    "The parameter type of the specified id setter method must be 'String' or 'ObjectId': " + setMethod.toGenericString());
        }

        classIdSetMethodPool.put(cls, setMethod);
    }

    public static DataSet extractData(final MongoIterable findIterable) {
        return extractData(Map.class, findIterable);
    }

    /**
     * 
     * @param targetClass an entity class with getter/setter method or Map.class/Document.class
     * @param findIterable
     * @return
     */
    public static DataSet extractData(final Class targetClass, final MongoIterable findIterable) {
        return extractData(targetClass, null, findIterable);
    }

    /**
     * 
     * @param targetClass an entity class with getter/setter method or Map.class/Document.class
     * @param selectPropNames
     * @param findIterable
     * @return
     */
    static DataSet extractData(final Class targetClass, final Collection selectPropNames, final MongoIterable findIterable) {
        checkTargetClass(targetClass);

        final List