org.edgexfoundry.AppConfig.java Source code

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Here is the source code for org.edgexfoundry.AppConfig.java

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/*******************************************************************************
 * Copyright 2016-2017 Dell 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.
 *
 * @microservice:  export-client
 * @author: Jim White, Dell
 * @version: 1.0.0
 *******************************************************************************/
package org.edgexfoundry;

import java.net.UnknownHostException;
import java.util.Arrays;
import java.util.List;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.MongoDbFactory;
import org.springframework.data.mongodb.config.AbstractMongoConfiguration;
import org.springframework.data.mongodb.config.EnableMongoAuditing;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.SimpleMongoDbFactory;

import com.mongodb.Mongo;
import com.mongodb.MongoClient;
import com.mongodb.MongoClientOptions;
import com.mongodb.MongoCredential;
import com.mongodb.ServerAddress;

/**
 * Configures Mongo DB. This configuration allows the MongoClientOptions to be
 * used - thereby allowing timeouts and wait times to override defaults.
 * 
 */
@Configuration
@EnableMongoAuditing
public class AppConfig extends AbstractMongoConfiguration {

    private @Value("${spring.data.mongodb.username}") String username;
    private @Value("${spring.data.mongodb.password}") String password;
    private @Value("${spring.data.mongodb.database}") String database;
    private @Value("${spring.data.mongodb.host}") String host;
    private @Value("${spring.data.mongodb.port}") int port;
    private @Value("${spring.data.mongodb.connectTimeout}") int connectTimeout;
    private @Value("${spring.data.mongodb.socketTimeout}") int socketTimeout;
    private @Value("${spring.data.mongodb.maxWaitTime}") int maxWaitTime;
    private @Value("${spring.data.mongodb.socketKeepAlive}") boolean socketKeepAlive;

    private MongoClient client;

    @Override
    protected String getDatabaseName() {
        return database;
    }

    public Mongo mongo() throws UnknownHostException {
        return getClient();
    }

    public @Bean MongoDbFactory mongoDbFactory() throws Exception {
        return new SimpleMongoDbFactory(getClient(), getDatabaseName());
    }

    public @Bean MongoTemplate mongoTemplate() throws Exception {
        return new MongoTemplate(mongoDbFactory());
    }

    private MongoClient getClient() throws UnknownHostException {
        if (client != null)
            return client;
        client = new MongoClient(getServerAddress(), getMongoCredentials(), getMongoClientOptions());
        return client;
    }

    private ServerAddress getServerAddress() throws UnknownHostException {
        return new ServerAddress(host, port);
    }

    private List<MongoCredential> getMongoCredentials() {
        MongoCredential credential = MongoCredential.createCredential(username, getDatabaseName(),
                password.toCharArray());
        return Arrays.asList(credential);
    }

    private MongoClientOptions getMongoClientOptions() {
        return MongoClientOptions.builder().connectTimeout(connectTimeout).socketTimeout(socketTimeout)
                .maxWaitTime(maxWaitTime).socketKeepAlive(socketKeepAlive).build();
    }

}