in.mtap.iincube.mongoapi.MongoWriter.java Source code

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Here is the source code for in.mtap.iincube.mongoapi.MongoWriter.java

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/*
 * Copyright 2015 mtap technologies
 *
 * 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 in.mtap.iincube.mongoapi;

import com.mongodb.DBCollection;
import com.mongodb.DBObject;
import com.mongodb.WriteConcern;
import com.mongodb.WriteResult;

import java.util.LinkedList;
import java.util.List;

import static in.mtap.iincube.mongoapi.internal.Utility.assertNotNull;

public class MongoWriter {
    private final MongoObjectFactory<DBCollection> collectionFactory;
    private List<DBObject> dbObjects = new LinkedList<DBObject>();

    MongoWriter(MongoObjectFactory<DBCollection> collectionFactory) {
        this.collectionFactory = collectionFactory;
    }

    public MongoWriter insert(List<DBObject> dbObjects) {
        this.dbObjects.addAll(dbObjects);
        return this;
    }

    public MongoWriter insert(DBObject dbObject) {
        dbObjects.add(dbObject);
        return this;
    }

    private void assertArguments() {
        assertNotNull(dbObjects, "dbObject == null");
    }

    /** Uses {@link WriteConcern#JOURNALED} */
    public WriteResult execute() {
        return execute(WriteConcern.JOURNALED);
    }

    public WriteResult execute(WriteConcern writeConcern) {
        assertArguments();
        assertNotNull(writeConcern, "WriteConcern == null");
        DBCollection collection = collectionFactory.get();
        return collection.insert(dbObjects, writeConcern);
    }
}