Example usage for com.mongodb DBCollection drop

Introduction

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

Prototype

public void drop() 

Source Link

Document

Drops (deletes) this collection from the database.

Usage

From source file:models.OntoProcessor.java

License:Open Source License

protected void saveProcesses() throws JsonProcessingException {
    DBCollection processesColl = db.getCollection("processes");
    processesColl.drop();

    for (Process process : ontology.getProcesses()) {
        String serializedProcess = mapper.writeValueAsString(process);
        BasicDBObject dbObject = (BasicDBObject) JSON.parse(serializedProcess);
        dbObject.append("_id", process.getId());
        processesColl.insert(dbObject);//from w w w  . j a va 2 s.c  om

        processesId.add(process.getId());
        HashMap<String, String> node = new HashMap<>();
        node.put("id", process.getId());
        String label = "";
        for (Keyword keyword : process.getKeywords()) {
            label += keyword.getLabel() + " - ";
        }
        label = label.substring(0, label.length() - 3);
        label += " [" + process.getUnit().getSymbol() + "]";
        node.put("label", label);
        derivedNodes.add(node);
    }

}

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From source file:models.OntoProcessor.java

License:Open Source License

protected void saveCoefficients() throws JsonProcessingException {
    DBCollection coefficientsColl = db.getCollection("coefficients");
    coefficientsColl.drop();

    for (Coefficient coeff : ontology.getCoefficients()) {
        String serializedCoeff = mapper.writeValueAsString(coeff);
        BasicDBObject dbObject = (BasicDBObject) JSON.parse(serializedCoeff);
        dbObject.append("_id", coeff.getId());
        coefficientsColl.insert(dbObject);
    }/*  w ww .  j a v a 2  s .  com*/

}

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From source file:models.OntoProcessor.java

License:Open Source License

protected void saveReferences() throws JsonProcessingException {
    DBCollection refColl = db.getCollection("references");
    refColl.drop();

    String serializedReferences = "{references:" + mapper.writeValueAsString(ontology.getReferences().values())
            + "}";
    BasicDBObject dbObject = (BasicDBObject) JSON.parse(serializedReferences);
    refColl.insert(dbObject);/*from  ww w .ja  va  2 s.  c o  m*/
}

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From source file:models.OntoProcessor.java

License:Open Source License

protected void saveGraph() {
    DBCollection graphColl = db.getCollection("graph");
    graphColl.drop();

    for (SourceRelation sourceRelation : ontology.getSourceRelations().values()) {
        String sourceId = sourceRelation.getSource().getId();
        String destinationId = sourceRelation.getDestination().getId();
        HashMap<String, Object> link = new HashMap<>();
        link.put("id", sourceRelation.getId());
        link.put("source", processGroupsId.indexOf(sourceId));
        link.put("target", processGroupsId.indexOf(destinationId));
        if (sourceRelation.getType() != null)
            link.put("type", sourceRelation.getType().getId());
        else//from   www  .j  a  v  a 2s .c  o  m
            link.put("type", "#none");
        links.add(link);
    }

    BasicDBObject dbObject = (BasicDBObject) JSON
            .parse("{nodes:" + toJson(nodes).toString() + ",links:" + toJson(links).toString() + "}");
    graphColl.insert(dbObject);
}

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From source file:models.OntoProcessor.java

License:Open Source License

protected void saveDerivedGraph() {
    DBCollection derivedGraphColl = db.getCollection("derivedGraph");
    derivedGraphColl.drop();

    for (DerivedRelation relation : ontology.getDerivedRelations()) {
        String sourceId = relation.getSource().getId();
        String destinationId = relation.getDestination().getId();
        HashMap<String, Object> link = new HashMap<>();
        link.put("source", processesId.indexOf(sourceId));
        link.put("target", processesId.indexOf(destinationId));
        if (relation.getType() != null)
            link.put("type", relation.getType().getId());
        else//w w  w .  j a  v  a  2  s  . c om
            link.put("type", "#none");
        derivedLinks.add(link);
    }

    BasicDBObject dbObject = (BasicDBObject) JSON.parse(
            "{nodes:" + toJson(derivedNodes).toString() + ",links:" + toJson(derivedLinks).toString() + "}");
    derivedGraphColl.insert(dbObject);
}

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From source file:models.OntoProcessor.java

License:Open Source License

protected void saveStats() throws JsonProcessingException {
    DBCollection statsColl = db.getCollection("ontologyStats");
    statsColl.drop();

    HashMap<String, Integer> stats = new HashMap<>();
    stats.put("coefficientGroups", ontology.getCoefficientGroups().size());
    stats.put("processGroups", ontology.getProcessGroups().size());
    stats.put("coefficients", ontology.getCoefficients().size());
    stats.put("processes", ontology.getProcesses().size());
    Integer numberOfInputElementaryFlow = 0;
    Integer numberOfCalculatedElementaryFlow = 0;
    Integer numberOfImpact = 0;//  w w w  .j  av a 2 s .  c  o  m
    for (Process process : ontology.getProcesses()) {
        numberOfInputElementaryFlow += process.getInputFlows().size();
        numberOfCalculatedElementaryFlow += process.getCalculatedFlows().size();
        numberOfImpact += process.getImpacts().size();
    }
    stats.put("inputFlows", numberOfInputElementaryFlow);
    stats.put("calculatedFlows", numberOfCalculatedElementaryFlow);
    stats.put("impacts", numberOfImpact);
    stats.put("sourceRelations", ontology.getSourceRelations().size());
    stats.put("derivedRelations", ontology.getDerivedRelations().size());
    stats.put("references", ontology.getReferences().size());

    BasicDBObject dbObject = (BasicDBObject) JSON.parse(mapper.writeValueAsString(stats));
    statsColl.insert(dbObject);
}

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From source file:mongoDB.MongoDbClientAllImagesAsByteArrays.java

License:Open Source License

@Override
public void createSchema(Properties props) {

    // drop all collections
    com.mongodb.DB db = null;//w w  w .  j ava2  s. c  o m
    try {
        // drop database and collections
        // db = mongo.getDB(database);
        db = mongo.getDB("admin");
        db.requestStart();
        // add shards
        /*
         * BasicDBObject addShard = new BasicDBObject("addshard",
         * "10.0.0.138:27011"); CommandResult shardAddResult =
         * db.command(addShard); shardAddResult.getException();
         * System.out.println(shardAddResult.toString()); addShard = new
         * BasicDBObject("addshard", "10.0.0.138:27012"); shardAddResult =
         * db.command(addShard);
         * System.out.println(shardAddResult.toString()); //db.command(
         * " { addshard : \"10.0.0.138:27011\" , allowLocal : true } )");
         */

        db = mongo.getDB(database);
        DBCollection collection = db.getCollection("users");
        collection.drop();
        collection = db.getCollection("resources");
        collection.drop();
        collection = db.getCollection("manipulation");
        collection.drop();

        if (Boolean.parseBoolean(
                props.getProperty(MONGODB_SHARDING_PROPERTY, MONGODB_SHARDING_PROPERTY_DEFAULT)) == true) {
            // enable sharding on the database in the admin user
            db = mongo.getDB("admin");
            BasicDBObject s = new BasicDBObject("enablesharding",
                    props.getProperty(MONGODB_DB_PROPERTY, "benchmark"));
            CommandResult cr = db.command(s);

            // enable sharding on each collection
            cr = db.command(BasicDBObjectBuilder.start("shardCollection", "benchmark.users").push("key")
                    .add("_id", 1).pop().get());
            if (Boolean.parseBoolean(props.getProperty(MONGODB_MANIPULATION_ARRAY_PROPERTY,
                    MONGODB_MANIPULATION_ARRAY_PROPERTY_DEFAULT)) == false) {
                cr = db.command(BasicDBObjectBuilder.start("shardCollection", "benchmark.resources").push("key")
                        .add("walluserid", 1).pop().get());
                cr = db.command(BasicDBObjectBuilder.start("shardCollection", "benchmark.manipulation")
                        .push("key").add("rid", 1).pop().get());
            } else {
                cr = db.command(BasicDBObjectBuilder.start("shardCollection", "benchmark.resources").push("key")
                        .add("_id", 1).pop().get());
            }
            //force move a chunk   
            //BasicDBObject mov = new BasicDBObject("moveChunk","benchmark.users");
            //BasicDBObject mo2 = new BasicDBObject("_id", 1); //this is the chunkid not the userid
            //mov.put("find", mo2);
            //mov.put("to", "shard0001");
            //CommandResult result2 = mongo.getDB("admin").command(mov);
            //System.out.println(result2);
            //check if migration is happening
            //            com.mongodb.DB db2 = mongo.getDB("config");
            //            DBCollection cl = db2.getCollection("locks");
            //            DBObject q = new BasicDBObject().append("_id", "balancer");
            //            DBObject qres = cl.findOne(q);
            //            while( Integer.parseInt(qres.get("state").toString()) == 1 )
            //               System.out.println("still migrating");
        }

        // create indexes on collection
        db = mongo.getDB(database);
        collection = db.getCollection("users");
        collection.createIndex(new BasicDBObject("users.wallResources", 1)); // create
        // index
        // on
        collection = db.getCollection("resources");
        collection.createIndex(new BasicDBObject("walluserid", 1)); // create
        // index
        // on
        // "i",
        // ascending
        if (Boolean.parseBoolean(props.getProperty(MONGODB_MANIPULATION_ARRAY_PROPERTY,
                MONGODB_MANIPULATION_ARRAY_PROPERTY_DEFAULT)) == false) {
            collection = db.getCollection("manipulation");
            collection.createIndex(new BasicDBObject("mid", 1));
            collection.createIndex(new BasicDBObject("rid", 1)); // create
            // index
            // on
            // "i",
            // ascending
        } else {
            collection.createIndex(new BasicDBObject("resources.Manipulations", 1)); // create index on
            // "i", ascending
        }

    } catch (Exception e) {
        System.out.println(e.toString());
        return;
    } finally {
        if (db != null) {
            db.requestDone();
        }
    }
}

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From source file:mongoDB.MongoDbClientAllImagesAsByteArrays.java

License:Open Source License

@Override
public void reconstructSchema() {
    com.mongodb.DB db = null;/*  w w  w . jav a  2s .  c  o  m*/
    try {
        db = mongo.getDB(database);
        db.requestStart();
        // getting the number of users
        DBCollection collection = db.getCollection("users");
        int numUsers = (int) collection.getCount();
        // for every user set their conf Friends and pend Friends to null
        for (int i = 0; i < numUsers; i++) {
            DBObject r = new BasicDBObject().append("_id", i);
            DBObject queryResult = collection.findOne(r);
            BasicDBObject updateCommand = new BasicDBObject();
            updateCommand.put("$set", new BasicDBObject("ConfFriends", new ArrayList<Integer>()));
            WriteResult res = collection.update(r, updateCommand, false, false, writeConcern);
            updateCommand = new BasicDBObject();
            updateCommand.put("$set", new BasicDBObject("PendFriends", new ArrayList<Integer>()));
            res = collection.update(r, updateCommand, false, false, writeConcern);
        }
        if (manipulationArray) {
            collection = db.getCollection("resources");
            int numResources = (int) collection.getCount();
            // for every user set their conf Friends and pend Friends to null
            for (int i = 0; i < numUsers; i++) {
                DBObject r = new BasicDBObject().append("_id", i);
                DBObject queryResult = collection.findOne(r);
                BasicDBObject updateCommand = new BasicDBObject();
                updateCommand.put("$set", new BasicDBObject("Manipulations", new ArrayList<Integer>()));
                WriteResult res = collection.update(r, updateCommand, false, false, writeConcern);
            }
        } else {
            collection = db.getCollection("manipulation");
            //TODO: test this
            if (Boolean.parseBoolean(
                    props.getProperty(MONGODB_SHARDING_PROPERTY, MONGODB_SHARDING_PROPERTY_DEFAULT)) == true)
                collection.drop(); //this doesnt work with shards
            else {
                DBCursor DBCur = collection.find();
                while (DBCur.hasNext())
                    collection.remove(DBCur.next());
            }

        }

        db.requestDone();
    } catch (Exception ex) {
        db.requestDone();
        ex.printStackTrace();
    }
}

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From source file:mongodb.performance.MongoDBPerformance.java

/**
 * @param args the command line arguments
 *//*from  www  . jav  a 2s. co  m*/
public static void main(String[] args) throws UnknownHostException, FileNotFoundException, IOException {
    if (args.length == 0) {
        System.out.println("Parmetro no informado!");
        System.exit(-1);
    }
    System.out.println("Parmetro: " + args[0]);

    MongoClient mongoClient = new MongoClient();
    //MongoClient mongoClient = new MongoClient( "54.172.218.64" , 27017 );
    DB db = mongoClient.getDB("myDatabase");

    DBCollection collection = db.getCollection("ads");
    collection.drop();

    BulkWriteOperation builder = collection.initializeUnorderedBulkOperation();

    FileInputStream fileInputStream = new FileInputStream(".\\resources\\MongoDB" + args[0] + ".txt");
    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(fileInputStream));
    // Insert
    // Time start    
    long start = System.currentTimeMillis();

    String line;
    while ((line = bufferedReader.readLine()) != null) {
        DBObject bson = (DBObject) JSON.parse(line);
        builder.insert(bson);
    }
    bufferedReader.close();
    builder.execute();
    //Time end
    long elapsed = System.currentTimeMillis() - start;
    System.out.println("[insert] Time elapsed: " + elapsed + " ms");

    // Update
    // Time start    
    start = System.currentTimeMillis();
    collection.updateMulti(new BasicDBObject(),
            new BasicDBObject("$set", new BasicDBObject().append("ano", 2006)));
    // Time end
    elapsed = System.currentTimeMillis() - start;
    System.out.println("[update] Time elapsed: " + elapsed + " ms");

    // Select
    // Time start    
    start = System.currentTimeMillis();
    BasicDBObject keys = new BasicDBObject();
    keys.put("_id", 1);
    keys.put("modeloCarro.marca", 1);
    keys.put("modeloCarro.nome", 1);
    keys.put("uf", 1);
    keys.put("placa_carro", 1);
    keys.put("qtd_portas", 1);
    keys.put("cambio", 1);
    keys.put("combustivel", 1);
    keys.put("cor", 1);
    keys.put("km", 1);
    keys.put("valor", 1);
    keys.put("detalhe", 1);
    BasicDBObject sort = new BasicDBObject("_id", 1);

    DBCursor cursor = collection.find(new BasicDBObject(), keys).sort(sort);
    while (cursor.hasNext()) {
        cursor.next();
    }
    // Time end
    elapsed = System.currentTimeMillis() - start;
    System.out.println("[select] Time elapsed: " + elapsed + " ms");

    // Delete
    // Time start    
    start = System.currentTimeMillis();
    collection.remove(new BasicDBObject());
    // Time end
    elapsed = System.currentTimeMillis() - start;
    System.out.println("[delete] Time elapsed: " + elapsed + " ms");
}

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From source file:mypackage.ManupulateMongo.java

protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/html;charset=UTF-8");
    try (PrintWriter out = response.getWriter()) {
        /* TODO output your page here. You may use following sample code. */
        String respective = request.getParameter("respective");
        String db = request.getParameter("dbname");
        String coll = request.getParameter("collname");
        String sb = respective;/*from  w  w  w  .jav a 2  s .c  om*/
        int index = sb.indexOf(";");
        int length = respective.length();
        String key = sb.substring(index + 1, length);
        HttpSession session = request.getSession(false);
        MongoClient mongoClient = new MongoClient("localhost", 27017);

        if (key.equals("db")) {
            String dbname = respective.substring(0, index);
            String coll_personal = session.getAttribute("uname") + "DB";
            DB mongodb = mongoClient.getDB(dbname);
            DB mongodb_personal = mongoClient.getDB("mydb");
            mongodb.dropDatabase();
            DBCollection dBCollection = mongodb_personal.getCollection(coll_personal);
            BasicDBObject query = new BasicDBObject();
            query.put("kapil", dbname);
            dBCollection.remove(query);
            out.print("true");
        }
        if (key.equals("coll")) {
            String collname = respective.substring(0, index);
            DB mongodb = mongoClient.getDB(db);
            DBCollection dBCollection = mongodb.getCollection(collname);
            dBCollection.drop();

            out.print("true");
        }
        if (key.equals("doc")) {
            String docname = respective.substring(0, index);
            DB mongodb = mongoClient.getDB(db);
            DBCollection dBCollection = mongodb.getCollection(coll);
            BasicDBObject query = new BasicDBObject();
            query.put("name", docname);
            dBCollection.remove(query);
            out.print("true");
        }
    }
}

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