com.iluwatar.hexagonal.eventlog.MongoEventLog.java Source code

Java tutorial

Introduction

Here is the source code for com.iluwatar.hexagonal.eventlog.MongoEventLog.java

Source

/**
 * The MIT License
 * Copyright (c) 2014-2016 Ilkka Seppl
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.iluwatar.hexagonal.eventlog;

import com.iluwatar.hexagonal.domain.PlayerDetails;
import com.mongodb.MongoClient;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import org.bson.Document;

/**
 * Mongo based event log
 */
public class MongoEventLog implements LotteryEventLog {

    private static final String DEFAULT_DB = "lotteryDB";
    private static final String DEFAULT_EVENTS_COLLECTION = "events";

    private MongoClient mongoClient;
    private MongoDatabase database;
    private MongoCollection<Document> eventsCollection;

    private StdOutEventLog stdOutEventLog = new StdOutEventLog();

    /**
     * Constructor
     */
    public MongoEventLog() {
        connect();
    }

    /**
     * Constructor accepting parameters
     */
    public MongoEventLog(String dbName, String eventsCollectionName) {
        connect(dbName, eventsCollectionName);
    }

    /**
     * Connect to database with default parameters
     */
    public void connect() {
        connect(DEFAULT_DB, DEFAULT_EVENTS_COLLECTION);
    }

    /**
     * Connect to database with given parameters
     */
    public void connect(String dbName, String eventsCollectionName) {
        if (mongoClient != null) {
            mongoClient.close();
        }
        mongoClient = new MongoClient(System.getProperty("mongo-host"),
                Integer.parseInt(System.getProperty("mongo-port")));
        database = mongoClient.getDatabase(dbName);
        eventsCollection = database.getCollection(eventsCollectionName);
    }

    /**
     * @return mongo client
     */
    public MongoClient getMongoClient() {
        return mongoClient;
    }

    /**
     *
     * @return mongo database
     */
    public MongoDatabase getMongoDatabase() {
        return database;
    }

    /**
     *
     * @return accounts collection
     */
    public MongoCollection<Document> getEventsCollection() {
        return eventsCollection;
    }

    @Override
    public void ticketSubmitted(PlayerDetails details) {
        Document document = new Document("email", details.getEmail());
        document.put("phone", details.getPhoneNumber());
        document.put("bank", details.getBankAccount());
        document.put("message", "Lottery ticket was submitted and bank account was charged for 3 credits.");
        eventsCollection.insertOne(document);
        stdOutEventLog.ticketSubmitted(details);
    }

    @Override
    public void ticketSubmitError(PlayerDetails details) {
        Document document = new Document("email", details.getEmail());
        document.put("phone", details.getPhoneNumber());
        document.put("bank", details.getBankAccount());
        document.put("message", "Lottery ticket could not be submitted because lack of funds.");
        eventsCollection.insertOne(document);
        stdOutEventLog.ticketSubmitError(details);
    }

    @Override
    public void ticketDidNotWin(PlayerDetails details) {
        Document document = new Document("email", details.getEmail());
        document.put("phone", details.getPhoneNumber());
        document.put("bank", details.getBankAccount());
        document.put("message", "Lottery ticket was checked and unfortunately did not win this time.");
        eventsCollection.insertOne(document);
        stdOutEventLog.ticketDidNotWin(details);
    }

    @Override
    public void ticketWon(PlayerDetails details, int prizeAmount) {
        Document document = new Document("email", details.getEmail());
        document.put("phone", details.getPhoneNumber());
        document.put("bank", details.getBankAccount());
        document.put("message",
                String.format("Lottery ticket won! The bank account was deposited with %d credits.", prizeAmount));
        eventsCollection.insertOne(document);
        stdOutEventLog.ticketWon(details, prizeAmount);
    }

    @Override
    public void prizeError(PlayerDetails details, int prizeAmount) {
        Document document = new Document("email", details.getEmail());
        document.put("phone", details.getPhoneNumber());
        document.put("bank", details.getBankAccount());
        document.put("message", String
                .format("Lottery ticket won! Unfortunately the bank credit transfer of %d failed.", prizeAmount));
        eventsCollection.insertOne(document);
        stdOutEventLog.prizeError(details, prizeAmount);
    }
}