Example usage for com.mongodb Mongo getDB

Introduction

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

Prototype

@Deprecated 
public DB getDB(final String dbName) 

Source Link

Document

Gets a database object.

Usage

From source file:mongoextraction.MongoExtraction.java

public static void main(String[] args) {

    try {// w  w w  .  j a v a2s .c om

        Mongo mongo = new Mongo("localhost", 27017);
        DB db = mongo.getDB("twitterdata2");
        DBCollection collection = db.getCollection("tweets2");

        // convert JSON to DBObject directly
        //DBObject dbObject = (DBObject) JSON
        //.parse("{'name':'harika', 'age':24}");

        //collection.insert(dbObject);
        Integer count = 0;
        DBCursor cursorDoc = collection.find();
        while (cursorDoc.hasNext()) {
            count++;
            //System.out.println(cursorDoc.next());
            DBObject dbobj = cursorDoc.next();
            //System.out.println(dbobj);
            String jsonString = dbobj.toString();
            //String loctmp = jsonString.

        }
        System.out.println(count);
        System.out.println("Done");

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

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From source file:mytubermiserver.mongo.GridFileSystem.java

public void sendVideo(String fileName, InputStream videoStream)
        throws UnknownHostException, MongoException, IOException {
    Mongo mongo = new Mongo(hostAddress, portAddress);

    DB db = mongo.getDB("MyTube");

    // create a "video" namespace
    GridFS gfsPhoto = new GridFS(db, "video");

    //get the file from stream
    GridFSInputFile gfsFile = gfsPhoto.createFile(videoStream);

    // set a new filename for identify purpose
    gfsFile.setFilename(fileName);/*from w  w  w .j ava2 s.c o m*/

    // save the image file into mongoDB
    gfsFile.save();
    videoStream.close();
}

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From source file:mytubermiserver.mongo.GridFileSystem.java

public InputStream receiveVideo(String fileName) throws UnknownHostException, MongoException, IOException {
    Mongo mongo = new Mongo(hostAddress, portAddress);
    DB db = mongo.getDB("MyTube");

    // create a "video" namespace
    GridFS gfsPhoto = new GridFS(db, "video");

    // get image file by it's filename
    GridFSDBFile videoForOutput = gfsPhoto.findOne(fileName);
    return videoForOutput.getInputStream();

}

---

From source file:mytubermiserver.mongo.GridFileSystem.java

public void RemoveVideo(String fileName) throws UnknownHostException, MongoException, IOException {
    Mongo mongo = new Mongo(hostAddress, portAddress);

    DB db = mongo.getDB("MyTube");
    // create a "video" namespace
    GridFS gfsVideo = new GridFS(db, "video");
    // remove the image file from mongoDB
    gfsVideo.remove(fileName);//from  w  ww  .  jav  a 2 s  .  c om
}

---

From source file:net.bunselmeyer.mongo.maven.plugin.MigrateMojo.java

License:Apache License

private void runMigrations(List<MigrationDetails> migrations) {
    if (migrations.isEmpty()) {
        return;/*from w ww  .  ja v  a 2  s.  c  o m*/
    }

    MigrationDetails migrationDetails = migrations.get(0);

    Mongo mongo;
    try {
        mongo = new Mongo(migrationDetails.host, Integer.parseInt(port));
    } catch (UnknownHostException e) {
        getLog().error("Failed to connect to " + migrationDetails.host + ":" + port);
        return;
    } catch (NumberFormatException e) {
        getLog().error("Invalid port: " + port);
        return;
    }

    mongo.setWriteConcern(WriteConcern.SAFE);

    DB db = mongo.getDB(migrationDetails.db);

    JacksonDBCollection<MigrationVersionDetails, ObjectId> migrationVersionCollection = createMigrationVersionCollection(
            db);

    getLog().info("Running migrations. Host: " + migrationDetails.host + ". DB: " + migrationDetails.db);

    sortMigrationDetails(migrations);

    Class<? extends Migration> lastMigration = null;
    try {
        for (MigrationDetails details : migrations) {
            lastMigration = details.migration;
            Migration m = details.migration.newInstance();

            MigrationVersionDetails versionDetails = new MigrationVersionDetails();
            versionDetails.setMigrationName(details.migration.getName());
            versionDetails.setVersion(details.version);

            if (migrationVersionCollection.getCount(versionDetails) == 0) {
                m.up(db);
                db.getLastError().throwOnError();
                getLog().info(
                        "    " + details.migration.getName() + ", v" + details.version + " migration complete");
                versionDetails.setRun(DateTime.now(DateTimeZone.UTC));
                migrationVersionCollection.insert(versionDetails);
            } else {
                getLog().info(
                        "    " + details.migration.getName() + ", v" + details.version + " was already run");
            }
        }
    } catch (Exception e) {
        String name = lastMigration != null ? lastMigration.getName() : "";
        getLog().info("    FAIL! " + name + " migration error", e);
    } finally {
        mongo.close();
    }
}

---

From source file:net.cit.tetrad.resource.ManagementResource.java

License:Open Source License

/**
 * mongos?  ?   ??  //from w w w. j a  v a  2  s.c  o  m
 * @param request
 * @param response
 * @throws Exception
 */
@RequestMapping("/mongosResearch.do")
public void mongosResearch(HttpServletRequest request, HttpServletResponse response, CommonDto commDto)
        throws Exception {
    String authUser = Utility.isNull(commDto.getAuthUser());
    String authPasswd = Utility.isNull(commDto.getAuthPasswd());
    String tempIp = Utility.isNull(commDto.getIp());
    boolean loopbackCheck = commDto.isLoopbackCheck();

    boolean authCheck = false;
    Mongo mongo = null;
    List<Map<String, Object>> resultLst = new ArrayList<Map<String, Object>>();
    boolean auth = false;
    DB db;
    try {
        PersonJson result = new PersonJson();
        if (authUser != "" && authPasswd != "")
            authCheck = true;
        List<Object> readMongoShards = new ArrayList<Object>();
        List<Object> readMongos = new ArrayList<Object>();
        Object readConfigDb = null;
        mongo = new Mongo(commDto.getIp(), Integer.parseInt(commDto.getPort()));
        if (authCheck) {
            db = mongo.getDB("admin");
            auth = db.authenticate(authUser, authPasswd.toCharArray());
        }
        readMongos = mongoStatusToMonitor.readMongoShards(mongo, "mongos", "config");
        readMongoShards = mongoStatusToMonitor.readMongoShards(mongo, "shards", "config");

        readConfigDb = mongoStatusToMonitor.readMongoStatus(mongo, new Device(), "getCmdLineOpts")
                .get("parsed_configdb");
        mongo.close();

        //mongos
        int mongoIdNum = 0;
        for (Object mongosObj : readMongos) {
            mongoIdNum++;
            Map<String, Object> statusMap = (Map<String, Object>) mongosObj;
            String[] splitName = ((String) statusMap.get("_id")).split(":");

            boolean isExistCheck = false;
            if (isExistDeviceIpPort(splitName[0], splitName[1]) != null)
                isExistCheck = true;
            statusMap.put("isExistCheck", isExistCheck);
            statusMap.put("ipStr", splitName[0]);
            statusMap.put("portStr", splitName[1]);
            statusMap.put("groupNameStr", "mongos_grp");
            statusMap.put("uidStr", "mongos" + "_" + mongoIdNum + "_" + splitName[1]);
            statusMap.put("typeStr", "mongos");

            resultLst.add(statusMap);
        }

        // mongod
        for (Object shardObj : readMongoShards) {
            Map<String, Object> shardMap = (Map<String, Object>) shardObj;
            String[] host = ((String) shardMap.get("host")).split("/");
            String[] hostLst = host[1].split(",");
            String[] ipPortSplit = hostLst[0].split(":");

            if (ipPortSplit[0].equals("127.0.0.1") || ipPortSplit[0].equals("localhost")) {
                ipPortSplit[0] = tempIp;
            }

            mongo = new Mongo(ipPortSplit[0], Integer.parseInt(ipPortSplit[1]));
            if (authCheck) {
                db = mongo.getDB("admin");
                auth = db.authenticate(authUser, authPasswd.toCharArray());
            }
            Map<String, Object> readMongoStatus = mongoStatusToMonitor.readMongoStatus(mongo, new Device(),
                    "replSetGetStatus");
            mongoIdNum = 0;
            for (Object status : (List<Object>) readMongoStatus.get("members")) {
                mongoIdNum++;
                Map<String, Object> statusMap = (Map<String, Object>) status;

                String[] splitName = ((String) statusMap.get("name")).split(":");

                if (loopbackCheck == true
                        && (splitName[0].equals("127.0.0.1") || splitName[0].equals("localhost"))) {
                    splitName[0] = tempIp;
                }

                boolean isExistCheck = false;
                if (isExistDeviceIpPort(splitName[0], splitName[1]) != null)
                    isExistCheck = true;
                statusMap.put("isExistCheck", isExistCheck);
                statusMap.put("ipStr", splitName[0]);
                statusMap.put("portStr", splitName[1]);
                statusMap.put("groupNameStr", readMongoStatus.get("set"));
                statusMap.put("uidStr",
                        readMongoStatus.get("set") + "_" + mongoIdNum + "_" + statusMap.get("stateStr"));
                statusMap.put("typeStr", "mongod");

                resultLst.add(statusMap);
            }
            mongo.close();
        }

        //config
        mongoIdNum = 0;
        for (String configStr : ((String) readConfigDb).split(",")) {
            mongoIdNum++;
            Map<String, Object> statusMap = new HashMap<String, Object>();

            String[] splitName = configStr.split(":");

            if (loopbackCheck == true
                    && (splitName[0].equals("127.0.0.1") || splitName[0].equals("localhost"))) {
                splitName[0] = tempIp;
            }

            boolean isExistCheck = false;
            if (isExistDeviceIpPort(splitName[0], splitName[1]) != null)
                isExistCheck = true;
            statusMap.put("isExistCheck", isExistCheck);
            statusMap.put("ipStr", splitName[0]);
            statusMap.put("portStr", splitName[1]);
            statusMap.put("groupNameStr", "config_grp");
            statusMap.put("uidStr", "config" + "_" + mongoIdNum + "_" + splitName[1]);
            statusMap.put("typeStr", "config");

            resultLst.add(statusMap);
        }

        result.setAaData(resultLst);
        JSONObject jsonObject = JSONObject.fromObject(result);

        Writer writer = setResponse(response).getWriter();
        writer.write(jsonObject.toString());

        writer.flush();
    } catch (Exception e) {
        e.printStackTrace();
        mongo.close();
    }
    log.debug("end - mongosResearch()");
}

---

From source file:net.cit.tetrad.rrd.dao.MongoStatusToMonitorImpl.java

License:Open Source License

public Map<String, Object> readMongoStatus(Mongo mongo, Device device, String command, String databaseName)
        throws MongoException, Exception {
    Map<String, Object> deviceStatus = new HashMap<String, Object>();

    try {//w  w  w. j  a va2s  .  c  om
        DB db = mongo.getDB(databaseName);
        CommandResult commandResult = db.command(command);
        deviceStatus = JasonUtil.getEntryValue(commandResult, "", deviceStatus);
    } catch (DataAccessResourceFailureException e) {
        e.printStackTrace();
        throw new MongoException(e.getMessage());
    } catch (MongoException e) {
        // alarm  ?
        e.printStackTrace();
        throw e;
    } catch (Exception e) {
        e.printStackTrace();
        throw e;
    } finally {

    }

    return deviceStatus;
}

---

From source file:net.cit.tetrad.rrd.dao.MongoStatusToMonitorImpl.java

License:Open Source License

public List<Object> readMongoShards(Mongo mongo, String collection, String databaseName)
        throws MongoException, Exception {
    List<Object> dboLst = new ArrayList<Object>();
    try {//from  www  .  j a  v  a2  s  .c  om
        DB db = mongo.getDB(databaseName);
        DBCollection dbcollection = db.getCollectionFromString(collection);
        DBCursor cr = dbcollection.find();
        Iterator<DBObject> it = cr.iterator();
        DBObject dbo;
        while (it.hasNext()) {
            dbo = it.next();
            Map<String, Object> deviceStatus = new HashMap<String, Object>();
            deviceStatus = JasonUtil.getEntryValue(dbo, "", deviceStatus);
            dboLst.add(deviceStatus);
        }
    } catch (DataAccessResourceFailureException e) {
        e.printStackTrace();
        throw new MongoException(e.getMessage());
    } catch (MongoException e) {
        e.printStackTrace();
        throw e;
    } catch (Exception e) {
        e.printStackTrace();
        throw e;
    } finally {

    }
    return dboLst;
}

---

From source file:net.cit.tetrad.rrd.dao.MongoStatusToMonitorImpl.java

License:Open Source License

public List<Object> readMongoChunksGrp(Mongo mongo, String collName, List<Object> dboLst)
        throws MongoException, Exception {
    try {//from   w  w w.  j  a v a 2  s.c  o m
        DB db = mongo.getDB("config");
        DBCollection dbcollection = db.getCollectionFromString("chunks");
        DBObject dbo = dbcollection.group(new BasicDBObject("shard", true), new BasicDBObject("ns", collName),
                new BasicDBObject("nChunks", 0), "function (doc, out) {out.nChunks++;}");
        Iterator<String> keys = dbo.keySet().iterator();
        BasicDBObject getDbo;
        while (keys.hasNext()) {
            String key = keys.next();
            getDbo = (BasicDBObject) dbo.get(key);
            getDbo.put("collName", collName);
            dboLst.add(getDbo);
        }
    } catch (DataAccessResourceFailureException e) {
        e.printStackTrace();
        throw new MongoException(e.getMessage());
    } catch (MongoException e) {
        e.printStackTrace();
        throw e;
    } catch (Exception e) {
        e.printStackTrace();
        throw e;
    } finally {

    }
    return dboLst;
}

---

From source file:net.cit.tetrad.rrd.dao.MongoStatusToMonitorImpl.java

License:Open Source License

public Set<String> readMongoCollectionName(Mongo mongo, String dbName) throws MongoException, Exception {
    Set<String> collNameLst = null;
    try {/* ww w  . j av  a 2  s.  co  m*/
        DB db = mongo.getDB(dbName);
        collNameLst = db.getCollectionNames();
    } catch (DataAccessResourceFailureException e) {
        e.printStackTrace();
        throw new MongoException(e.getMessage());
    } catch (MongoException e) {
        e.printStackTrace();
        throw e;
    } catch (Exception e) {
        e.printStackTrace();
        throw e;
    } finally {

    }
    return collNameLst;
}

---

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