Example usage for com.mongodb Mongo Mongo

Introduction

In this page you can find the example usage for com.mongodb Mongo Mongo.

Prototype

Mongo(final MongoClientURI mongoURI, @Nullable final MongoDriverInformation mongoDriverInformation) 

Source Link

Usage

From source file:org.anyframe.logmanager.bundle.core.Activator.java

License:Apache License

/**
 * @param context//from   w w  w .ja va  2  s  . c  om
 * @throws Exception
 */
private void initMongo(BundleContext context) throws Exception {

    if (context == null) {
        throw new LogManagerBundleException("Context is null.");
    }

    String mongoSvr = context.getProperty("mongo.host");
    int mongoPort = Integer.parseInt(context.getProperty("mongo.port"));
    logger.info("MongoDB connect to - " + mongoSvr + ":" + mongoPort);

    MongoOptions options = new MongoOptions();
    options.connectionsPerHost = Integer.parseInt(context.getProperty("mongo.connectionsPerHost"));
    options.autoConnectRetry = Boolean.parseBoolean(context.getProperty("mongo.autoConnectRetry"));
    options.connectTimeout = Integer.parseInt(context.getProperty("mongo.connectTimeout"));
    options.threadsAllowedToBlockForConnectionMultiplier = Integer
            .parseInt(context.getProperty("mongo.threadsAllowedToBlockForConnectionMultiplier"));
    options.maxWaitTime = Integer.parseInt(context.getProperty("mongo.maxWaitTime"));
    options.connectTimeout = Integer.parseInt(context.getProperty("mongo.connectTimeout"));
    options.socketKeepAlive = Boolean.parseBoolean(context.getProperty("mongo.socketKeepAlive"));
    options.socketTimeout = Integer.parseInt(context.getProperty("mongo.socketTimeout"));

    ServerAddress addr = new ServerAddress(mongoSvr, mongoPort);

    mongo = new Mongo(addr, options);

    if (mongo != null) {
        logger.info("MongoDB connected - " + addr.getHost() + ":" + addr.getPort());
    }
}

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From source file:org.apache.camel.processor.idempotent.mongodb.MongoDbIdempotentRepository.java

License:Apache License

public void init() {
    try {/*from w  w w  .  j ava  2  s.c o m*/
        Mongo mongo = new Mongo(host, port);
        db = mongo.getDB(dbName);
        coll = db.getCollection(collectionName);

        // create a unique index on event id key
        coll.ensureIndex(new BasicDBObject(EVENTID, 1), "repo_index", true);

        log.debug("unique index constraint --> " + coll.getIndexInfo());

    } catch (UnknownHostException e) {
        e.printStackTrace();
    } catch (MongoException e) {
        e.printStackTrace();
    }
}

---

From source file:org.apache.cassandra.db.engine.MongoConfigure.java

License:Apache License

public DB connect(String dbName, String host, int port, String user, String pass) {
    try {/*  ww  w  . j a va  2s. co m*/
        Mongo mongo = new Mongo(host, port);
        DB db = mongo.getDB(dbName);
        if (user != null && pass != null)
            if (!db.authenticate(user, pass.toCharArray()))
                throw new Exception("authentication error!!");
        return db;
    } catch (Exception e) {
        System.err.println("can't connect MongoDB [host: " + host + " port:" + port + " user:" + user + "]");
        System.exit(1);
    }
    return null;
}

---

From source file:org.apache.hadoop.contrib.mongoreduce.MongoInputFormat.java

License:Apache License

@Override
public List<InputSplit> getSplits(JobContext context) throws IOException, InterruptedException {

    Configuration conf = context.getConfiguration();

    ArrayList<InputSplit> splits = new ArrayList<InputSplit>();

    // in single testing mode we just hit the local db
    boolean singleTestingMode = conf.getBoolean("mongo.single.testing", false);
    if (singleTestingMode) {
        String[] hosts = { "localhost:27017" };
        splits.add(new MongoInputSplit(hosts));

        return splits;
    }/*from w w w  . j a  va 2s  .c o  m*/

    boolean primaryOk = conf.getBoolean("mongo.input.primary_ok", false);

    // connect to global mongo through a mongos process
    Mongo m = new Mongo("localhost", 27017);

    // get a list of all shards and their hosts
    // TODO: add notification if config db not found / db is not sharded
    DB configdb = m.getDB("config");
    DBCollection shards = configdb.getCollection("shards");

    // we need to query/read/process each shard once
    for (DBObject shard : shards.find()) {

        System.out.println("adding shard" + shard.toString());

        String[] hosts = hostsForShard((String) shard.get("host"), primaryOk);
        for (String host : hosts)
            System.out.print(host + " ");
        System.out.println();

        InputSplit split = new MongoInputSplit(hosts);
        splits.add(split);
    }

    return splits;
}

---

From source file:org.apache.hadoop.contrib.mongoreduce.MongoRecordReader.java

License:Apache License

private void connect(String location, Configuration conf) throws IOException {

    String[] parts = location.split(":");

    // default port for sharded server
    int port = 27018;
    if (parts.length > 1)
        port = Integer.parseInt(parts[1]);

    Mongo mongo = new Mongo(parts[0], port);

    // figure out if we can read from this server

    // allow reading from secondaries
    mongo.slaveOk();//w  w  w .j av a  2 s . co m

    String database = conf.get("mongo.input.database");
    String collection = conf.get("mongo.input.collection");
    String query = conf.get("mongo.input.query", "");
    String select = conf.get("mongo.input.select", "");

    if (!query.equals("")) {
        DBObject q = (DBObject) JSON.parse(query);

        if (!select.equals("")) {
            DBObject s = (DBObject) JSON.parse(select);
            cursor = mongo.getDB(database).getCollection(collection).find(q, s);
        } else {
            cursor = mongo.getDB(database).getCollection(collection).find(q);
        }
    } else {
        if (!select.equals("")) {
            DBObject s = (DBObject) JSON.parse(select);
            cursor = mongo.getDB(database).getCollection(collection).find(new BasicDBObject(), s);
        } else {
            cursor = mongo.getDB(database).getCollection(collection).find();
        }
    }

    cursor.addOption(Bytes.QUERYOPTION_NOTIMEOUT);

    // thanks mongo, for this handy method
    totalResults = cursor.count();
    resultsRead = 0.0f;

}

---

From source file:org.apache.hadoop.contrib.mongoreduce.MongoRecordWriter.java

License:Apache License

public MongoRecordWriter(String database, String collection) throws IOException {

    // connect to local mongos process
    try {/*from  w  w w  .  ja  v a2s  .com*/
        mongo = new Mongo("localhost", 27017);
        coll = mongo.getDB(database).getCollection(collection);

    } catch (UnknownHostException e) {

        e.printStackTrace();
        throw new IOException(e.getMessage());
    } catch (MongoException e) {

        e.printStackTrace();
        throw new IOException(e.getMessage());
    }

}

---

From source file:org.apache.hadoop.contrib.mongoreduce.MongoStreamInputFormat.java

License:Apache License

/**
 * almost identical to MongoInputFormat//from   w w w  .j ava2 s  .c  o m
 * 
 * just uses old API and returns Streaming Splits instead
 */
//@Override
public InputSplit[] getSplits(JobConf conf, int numsplits) throws IOException {

    ArrayList<InputSplit> splits = new ArrayList<InputSplit>();
    InputSplit[] ret;

    // in single testing mode we just hit the local db
    boolean singleTestingMode = conf.getBoolean("mongo.single.testing", false);
    if (singleTestingMode) {
        String[] hosts = { "localhost:27017" };
        splits.add(new MongoStreamInputSplit(hosts));

        ret = new InputSplit[1];
        return splits.toArray(ret);
    }

    boolean primaryOk = conf.getBoolean("mongo.input.primary_ok", false);

    // connect to global mongo through a mongos process
    Mongo m = new Mongo("localhost", 27017);

    // get a list of all shards and their hosts
    DB configdb = m.getDB("config");
    DBCollection shards = configdb.getCollection("shards");

    // we need to query/read/process each shard once
    for (DBObject shard : shards.find()) {

        System.out.println("adding shard" + shard.toString());

        String[] hosts = MongoInputFormat.hostsForShard((String) shard.get("host"), primaryOk);

        for (String h : hosts)
            System.out.println("host:" + h);

        InputSplit split = new MongoStreamInputSplit(hosts);
        splits.add(split);
    }

    ret = new InputSplit[splits.size()];
    return splits.toArray(ret);
}

---

From source file:org.apache.hadoop.contrib.mongoreduce.MongoStreamRecordWriter.java

License:Apache License

public MongoStreamRecordWriter(String database, String collection) throws IOException {
    // connect to local mongos process
    try {//  ww  w  .  ja  v  a 2  s  .  c o m
        mongo = new Mongo("localhost", 27017);
        coll = mongo.getDB(database).getCollection(collection);

    } catch (UnknownHostException e) {

        e.printStackTrace();
        throw new IOException(e.getMessage());
    } catch (MongoException e) {

        e.printStackTrace();
        throw new IOException(e.getMessage());
    }
}

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From source file:org.apache.isis.objectstore.nosql.db.mongo.MongoDb.java

License:Apache License

@Override
public void open() {
    try {//from   w  ww  . j  a va  2s.  c  om
        if (mongo == null) {
            mongo = new Mongo(host, port);
            db = mongo.getDB(dbName);
            db.setWriteConcern(com.mongodb.WriteConcern.SAFE);
            LOG.info("opened database (" + dbName + "): " + mongo);
        } else {
            LOG.info(" using opened database " + db);
        }
    } catch (final UnknownHostException e) {
        throw new NoSqlStoreException(e);
    } catch (final MongoException e) {
        throw new NoSqlStoreException(e);
    }
}

---

From source file:org.apache.isis.runtimes.dflt.objectstores.nosql.db.mongo.MongoDb.java

License:Apache License

@Override
public void open() {
    try {// w  w w.  jav  a  2  s . c o m
        mongo = new Mongo(host, port);
        db = mongo.getDB(dbName);
        db.setWriteConcern(WriteConcern.STRICT);

        LOG.info("opened database (" + dbName + "): " + db);
    } catch (final UnknownHostException e) {
        throw new NoSqlStoreException(e);
    } catch (final MongoException e) {
        throw new NoSqlStoreException(e);
    }
}

---

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