mongoSample.MyMongoDemo.java Source code

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Here is the source code for mongoSample.MyMongoDemo.java

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/*
 * Copyright 2015 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 mongoSample;

import static com.mongodb.client.model.Filters.eq;

import org.bson.Document;

import com.mongodb.BasicDBList;

import com.mongodb.BasicDBObject;

import com.mongodb.MongoClient;

import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoCursor;
import com.mongodb.client.MongoDatabase;

public class MyMongoDemo {

    public static void main(final String[] args) {
        String mongoServer = args[0];

        MongoClient mongoClient = new MongoClient(mongoServer);
        MongoDatabase database = mongoClient.getDatabase("NGDBDemo");
        MongoCollection<Document> collection = database.getCollection("test");

        collection.drop();

        Document people = new Document(); // A document for a person
        people.put("Name", "Guy");
        people.put("Email", "guy@gmail.com");

        BasicDBList friendList = new BasicDBList(); // A list for the persons
        // friends

        BasicDBObject friendDoc = new BasicDBObject(); // A document for each
        // friend

        friendDoc.put("Name", "Jo");
        friendDoc.put("Email", "Jo@gmail.com");
        friendList.add(friendDoc);
        friendDoc.clear();
        friendDoc.put("Name", "John");
        friendDoc.put("Email", "john@gmail.com");
        friendList.add(friendDoc);
        people.put("Friends", friendDoc);

        collection.insertOne(people);

        System.out.println('1');
        MongoCursor<Document> cursor = collection.find().iterator();
        try {
            while (cursor.hasNext()) {
                System.out.println(cursor.next().toJson());
            }
        } finally {
            cursor.close();
        }
        System.out.println('2');

        for (Document cur : collection.find()) {
            System.out.println(cur.toJson());
        }

        System.out.println('3');
        // now use a query to get 1 document out
        Document myDoc = collection.find(eq("Name", "Guy")).first();
        System.out.println(myDoc.toJson());

        database = mongoClient.getDatabase("sakila");
        collection = database.getCollection("films");
        for (Document cur : collection.find()) {
            System.out.println(cur.toJson());
        }
        mongoClient.close();
    }
}