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Fake implementation of MongoDB in Java that speaks the wire protocol

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package de.bwaldvogel.mongo;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import de.bwaldvogel.mongo.backend.memory.MemoryBackend;

public class InMemoryMongoServer extends MongoServer {

    private static final Logger log = LoggerFactory.getLogger(InMemoryMongoServer.class);

    public static void main(String[] args) throws Exception {
        final MongoServer mongoServer = new InMemoryMongoServer();
        mongoServer.bind("localhost", 27017);
        Runtime.getRuntime().addShutdownHook(new Thread() {
            @Override
            public void run() {
                log.info("shutting down {}", mongoServer);
                mongoServer.shutdownNow();
            }
        });
    }

    /**
     * creates a mongo server with in-memory backend
     */
    public InMemoryMongoServer() {
        super(new MemoryBackend());
    }
}