Example usage for com.mongodb MongoClient getDB

List of usage examples for com.mongodb MongoClient getDB

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Introduction

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

Prototype

@Deprecated 
public DB getDB(final String dbName)

Source Link

Document

Gets a database object.

Usage

From source file:localdomain.localhost.MongoDbTroubleshooter.java

License:Open Source License

public void run() throws Exception {
    try (PrintWriter writer = new PrintWriter(System.out)) {

        MongoClientURI mongoClientUri = new MongoClientURI(uri);
        writer.println("" + "host=" + mongoClientUri.getHosts() + ",username=" + mongoClientUri.getUsername()
                + ",database=" + mongoClientUri.getDatabase() + ",collection=" + mongoClientUri.getCollection()
                + "");

        writer.println();//from w  w w  .  jav a2 s .  c  o m
        writer.println();

        writer.println("# MongoClient");
        writer.println();

        MongoClient mongoClient = new MongoClient(mongoClientUri);
        writer.println("" + mongoClient + "");

        writer.println();
        writer.println();
        writer.println("# Databases");
        writer.println();

        try {
            List<String> databaseNames = mongoClient.getDatabaseNames();
            for (String databaseName : databaseNames) {
                writer.println("* " + databaseName
                        + (databaseName.equals(mongoClientUri.getDatabase()) ? " - default database" : ""));
            }
        } catch (Exception e) {
            writer.println("Could not list the databases of the MongoDB instance: '" + e.getMessage() + "'");

        }

        writer.println();
        writer.println();
        writer.println("# Database");
        writer.println();

        DB db = mongoClient.getDB(mongoClientUri.getDatabase());
        writer.println("DB: " + db.getName() + "");

        writer.println();
        writer.println();
        writer.println("## Collections");
        writer.println();
        Set<String> myCollections = db.getCollectionNames();
        if (myCollections.isEmpty()) {
            writer.println("NO COLLECTIONS!");

        } else {

            for (String collection : myCollections) {
                DBCollection dbCollection = db.getCollection(collection);
                writer.println("* " + dbCollection.getName() + " - " + dbCollection.getCount() + " entries");
            }
        }
    }
}

From source file:localdomain.localhost.MyServlet.java

License:Apache License

@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    PrintWriter writer = resp.getWriter();

    writer.println("<html>");
    writer.println("<head><title>MyServlet</title></head>");
    writer.println("<body><h1>MyServlet</h1>");

    writer.println("<h2>MongoDB</h2>");

    String uriAsString = System.getProperty("MONGOHQ_URL_MYDB", "mongodb://localhost/local");

    MongoClient mongoClient = null;
    try {//from ww w . ja va2 s  .c  o  m
        writer.println("<h4>MongoClientURI</h4>");

        MongoClientURI uri = new MongoClientURI(uriAsString);
        writer.println("<p>" + "host=" + uri.getHosts() + ",username=" + uri.getUsername() + ",database="
                + uri.getDatabase() + ",collection=" + uri.getCollection() + "</p>");

        writer.println("<h4>MongoClient</h4>");

        mongoClient = new MongoClient(uri);
        writer.println("<p>" + mongoClient + "</p>");

        writer.println("<h4>Databases</h4>");

        try {
            List<String> databaseNames = mongoClient.getDatabaseNames();
            writer.println("<ul>");
            for (String databaseName : databaseNames) {
                writer.println("<li>" + databaseName
                        + (databaseName.equals(uri.getDatabase()) ? " - default database" : ""));
            }
            writer.println("</ul>");
        } catch (Exception e) {
            writer.println("<p>Could not list the databases of the MongoDB instance: <code>" + e.getMessage()
                    + "</code></p>");

        }

        writer.println("<h4>Database</h4>");

        DB db = mongoClient.getDB(uri.getDatabase());
        writer.println("<p>DB: " + db.getName() + "</p>");

        writer.println("<h4>Collections</h4>");
        Set<String> myCollections = db.getCollectionNames();
        if (myCollections.isEmpty()) {
            writer.println("<p>NO COLLECTIONS!</p>");

        } else {

            writer.println("<ul>");
            for (String collection : myCollections) {
                DBCollection dbCollection = db.getCollection(collection);
                writer.println(
                        "<li>" + dbCollection.getName() + " - " + dbCollection.getCount() + " entries</li>");
            }
            writer.println("</ul>");
        }
        writer.println("<h4>Success!</h4>");
        writer.println("SUCCESS to access the mongodb database");

    } catch (Exception e) {
        writer.println("<code><pre>");
        e.printStackTrace(writer);
        writer.println("</pre></code>");

        e.printStackTrace();
    } finally {
        if (mongoClient != null) {
            try {
                mongoClient.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
    writer.println("</body></html>");

}

From source file:lucenetools.DocIndexerMongo.java

License:Apache License

/**
 * This method creates the Mongo cursor object for the connection
 * details specified in the config file.
 * /*from  w w w  .  j a v a  2  s. c o  m*/
 * @param   opts                    options object
 * @return  DBCursor                mongo cursor
 * @throws  UnknownHostException    cannot connect to mongo host
 */
static DBCursor getCursor(Options opts) throws UnknownHostException {
    MongoClient mongoClient = new MongoClient(opts.host, opts.port);
    DB db = mongoClient.getDB(opts.database);
    DBCollection coll = db.getCollection(opts.collection);
    DBCursor cursor = coll.find();
    return cursor;
}

From source file:me.carbou.mathieu.tictactoe.di.ServiceBindings.java

License:Apache License

@Provides
@Singleton/*from w w w . j a v  a  2  s .  c o  m*/
DB db(Clock clock) throws UnknownHostException {
    MongoClientURI mongoClientURI = new MongoClientURI(Env.MONGOLAB_URI);
    MongoClient mongoClient = new MongoClient(mongoClientURI);
    MongoJsr310.addJsr310EncodingHook();
    BSON.addEncodingHook(GString.class, o -> o instanceof GString ? o.toString() : o);
    BSON.addEncodingHook(ZoneId.class, o -> o instanceof ZoneId ? ((ZoneId) o).getId() : o);
    BSON.addEncodingHook(Enum.class, o -> o instanceof Enum ? ((Enum) o).name() : o);
    BSON.addEncodingHook(Locale.class, o -> o instanceof Locale ? o.toString() : o);
    BSON.addEncodingHook(BigDecimal.class, o -> o instanceof BigDecimal ? ((BigDecimal) o).doubleValue() : o);
    BSON.addEncodingHook(BigInteger.class, o -> o instanceof BigInteger ? ((BigInteger) o).longValue() : o);
    return new DB(mongoClient.getDB(mongoClientURI.getDatabase()), clock);
}

From source file:me.yyam.mongodbutils.MongoDbOperater.java

public static void main(String[] args) throws Exception {
    MongoClient mongoClient = new MongoClient("localhost", 27017);
    DB db = mongoClient.getDB("test");
    DBCollection coll = db.getCollection("rztest");
    String sql = "select * from table1 where name='aaa' and age>=18 and foot in (1,2,3) and abc in ('a1','a2','a3') order by age,name limit 123";
    MongoDbOperater ope = new MongoDbOperater();
    ope.setMongoClient(mongoClient);//w ww  . j  av  a 2s .c  om
    QueryInfo info = ope.sql2QueryInfo("abc", sql);
    System.out.println(info.debugStr());

    sql = "select * from algoflow_instance_log where functionName='f1' and reuseResult=false and returnCode=0 and action='LEAVE' order by timestamp desc limit 100";
    info = ope.sql2QueryInfo("abc", sql);
    System.out.println(info.debugStr());

    String updateSql = "update table1 set a=1, b='sdaf', c='2012-11-23 17:45:32' where name='aaa' and age>=18 and foot in (1,2,3) and abc in ('a1','a2','a3')";
    QueryInfo uinfo = ope.sql2QueryInfo("abc", updateSql);
    System.out.println(uinfo.debugStr());

    String json = "{\"a\":123,\"b\":345}";
    BasicBSONObject obj = (BasicBSONObject) JSON.parse(json, new DefaultDBCallback(coll));
    BasicDBObject dbObj = new BasicDBObject(obj);
    System.out.println(dbObj);
}

From source file:mini_mirc_server.miniIRCHandler.java

/**
 * Add a user to a channel (can check if the channel is a new channel)
 * @param Username/*www  .j a v  a 2  s.  c  om*/
 * @param Channel
 * @return code
 */
private int AddChannel(String Username, String Channel) {
    int ret = 0;
    try {

        MongoClient mongoClient = new MongoClient();
        DB db = mongoClient.getDB("mirc");
        DBCollection coll = db.getCollection("channelCollection");
        BasicDBObject query = new BasicDBObject("username", Username).append("channel", Channel);

        DBCursor cursor = coll.find(query);

        try {
            if (cursor.hasNext()) {
                ret = 1;
                System.err.println(Username + " has joined Channel : " + Channel + "!");
            } else {
                query = new BasicDBObject("channel", Channel);
                DBCursor cursor2 = coll.find(query);
                try {
                    if (!cursor2.hasNext()) {
                        ret = 2;
                    }
                } finally {
                    cursor2.close();
                }
                BasicDBObject doc = new BasicDBObject("username", Username).append("channel", Channel);
                coll.insert(doc);
                System.out.println(Username + " joined Channel : " + Channel);
            }
        } finally {
            cursor.close();
        }

    } catch (UnknownHostException ex) {
        Logger.getLogger(miniIRCHandler.class.getName()).log(Level.SEVERE, null, ex);
    }
    return ret;
}

From source file:mini_mirc_server.miniIRCHandler.java

/**
 * Delete a user from a channel (used in leave method)
 * @param Channel//  ww  w . ja v  a2  s  .  c om
 * @param Username
 * @return code
 */
private int DeleteChannelUser(String Channel, String Username) {
    int ret = 0;
    try {

        MongoClient mongoClient = new MongoClient();
        DB db = mongoClient.getDB("mirc");
        DBCollection coll = db.getCollection("channelCollection");
        BasicDBObject query = new BasicDBObject("username", Username).append("channel", Channel);

        DBCursor cursor = coll.find(query);

        try {
            while (cursor.hasNext()) {
                coll.remove(cursor.next());
            }
        } finally {
            cursor.close();
        }

    } catch (UnknownHostException ex) {
        Logger.getLogger(miniIRCHandler.class.getName()).log(Level.SEVERE, null, ex);
    }
    System.out.println(Username + " has leaved Channel : " + Channel);
    return ret;
}

From source file:mini_mirc_server.miniIRCHandler.java

/**
 * Delete a user in all channel (used in cleaning)
 * @param Username/*from  w ww .  j  a  v a 2s  .c o  m*/
 * @return code
 */
public int DeleteUserInChannel(String Username) {
    int ret = 0;
    try {

        MongoClient mongoClient = new MongoClient();
        DB db = mongoClient.getDB("mirc");
        DBCollection coll = db.getCollection("channelCollection");
        BasicDBObject query = new BasicDBObject("username", Username);

        DBCursor cursor = coll.find(query);

        try {
            while (cursor.hasNext()) {
                coll.remove(cursor.next());
            }
        } finally {
            cursor.close();
        }

    } catch (UnknownHostException ex) {
        Logger.getLogger(miniIRCHandler.class.getName()).log(Level.SEVERE, null, ex);
    }
    System.out.println(Username + " has been deleted in Channel Collection!");
    return ret;
}

From source file:mini_mirc_server.miniIRCHandler.java

/**
 * Register a user to the server (used in RegUser)
 * @param username/*  ww  w .jav  a2s.  c o  m*/
 * @return code
 */
private int AddUser(String username) {
    int ret = 0;
    try {

        MongoClient mongoClient = new MongoClient();
        DB db = mongoClient.getDB("mirc");
        DBCollection coll = db.getCollection("activeUser");
        BasicDBObject query = new BasicDBObject("username", username);

        DBCursor cursor = coll.find(query);

        try {
            if (cursor.hasNext()) {
                Date now = new Date();
                long timestamp_now = now.getTime();
                long treshold = timestamp_now - (1000 * 10); //10
                BasicDBObject temp = (BasicDBObject) cursor.next();
                Date time_temp = (Date) temp.get("timestamp");
                long timestamp_temp = time_temp.getTime();
                if (timestamp_temp < treshold) {
                    ret = 2;
                    System.out.println(username + " has joined back!");
                } else {
                    ret = 1;
                    System.err.println(username + " has been used !");
                }
            } else {
                java.util.Date date = new java.util.Date();
                BasicDBObject doc = new BasicDBObject("username", username).append("timestamp", date);
                coll.insert(doc);
                System.out.println(username + " online !");
            }
        } finally {
            cursor.close();
        }

    } catch (UnknownHostException ex) {
        Logger.getLogger(miniIRCHandler.class.getName()).log(Level.SEVERE, null, ex);
    }
    return ret;
}

From source file:mini_mirc_server.miniIRCHandler.java

private int UpdateLastActive(String username) {
    int ret = 0;/*from   w w w. j a v  a  2s.c  o m*/
    try {

        MongoClient mongoClient = new MongoClient();
        DB db = mongoClient.getDB("mirc");
        DBCollection coll = db.getCollection("activeUser");
        BasicDBObject query = new BasicDBObject("username", username);

        DBCursor cursor = coll.find(query);

        try {
            if (cursor.hasNext()) {
                DBObject temp = cursor.next();
                java.util.Date date = new java.util.Date();
                temp.put("timestamp", date);
                coll.save(temp);
            } else {
                java.util.Date date = new java.util.Date();
                BasicDBObject doc = new BasicDBObject("username", username).append("timestamp", date);
                coll.insert(doc);
                System.out.println(username + " online !");
            }
        } finally {
            cursor.close();
        }

    } catch (UnknownHostException ex) {
        Logger.getLogger(miniIRCHandler.class.getName()).log(Level.SEVERE, null, ex);
    }
    return 0;
}