com.epam.dlab.mongo.MongoServiceFactory.java Source code

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/***************************************************************************
    
Copyright (c) 2016, EPAM SYSTEMS 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.epam.dlab.mongo;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.mongodb.MongoClient;
import com.mongodb.MongoCredential;
import com.mongodb.ServerAddress;
import io.dropwizard.lifecycle.Managed;
import io.dropwizard.setup.Environment;
import org.hibernate.validator.constraints.NotEmpty;

import javax.validation.constraints.Max;
import javax.validation.constraints.Min;
import java.util.Collections;

// TODO: Separate configuration and factory responsibilities
public class MongoServiceFactory {
    @NotEmpty
    @JsonProperty
    private String host;

    @Min(1)
    @Max(65535)
    @JsonProperty
    private int port;

    @NotEmpty
    @JsonProperty
    private String username;

    @NotEmpty
    @JsonProperty
    private String password;

    @NotEmpty
    @JsonProperty
    private String database;

    public MongoService build(Environment environment) {
        MongoClient client = new MongoClient(new ServerAddress(host, port), Collections
                .singletonList(MongoCredential.createCredential(username, database, password.toCharArray())));
        environment.lifecycle().manage(new Managed() {
            @Override
            public void start() {
            }

            @Override
            public void stop() {
                client.close();
            }
        });
        return new MongoService(client, database);
    }

    public String getHost() {
        return host;
    }

    public int getPort() {
        return port;
    }

    public String getUsername() {
        return username;
    }

    public String getPassword() {
        return password;
    }

    public String getDatabase() {
        return database;
    }
}