mongosensors_server.MongoTools.java Source code

Introduction

Here is the source code for mongosensors_server.MongoTools.java

Source

/*
 * Copyright (C) 2014 Giovanni D'Italia
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package mongosensors_server;

import org.json.*;
import java.util.*;
import com.mongodb.*;
import com.mongodb.util.JSON;
import com.mongodb.MongoClientURI;
import com.mongodb.MongoClient;
import com.mongodb.client.*;

/**
 *
 * @author giovanni
 */

public class MongoTools extends MongoClient {
    private DB db;

    public MongoTools(String s) {
        super(new MongoClientURI(s));
    }

    public void setDatabase(String database) {
        this.db = super.getDB(database);
    }

    public DB getDatabase() {
        return this.db;
    }

    public void insertInCollection(String collection, JSONObject json) {
        DBObject jsonDoc = (DBObject) JSON.parse(json.toString());
        this.db.getCollection(collection).insert(jsonDoc);
    }

    public void insertInCollection(String collection, String data) {
        DBObject jsonDoc = (DBObject) JSON.parse(data);
        this.db.getCollection(collection).insert(jsonDoc);
    }

    public DBCursor getFromCollection(String collection, String query) {
        return this.db.getCollection(collection).find((DBObject) JSON.parse(query));
    }

    public void removeFromCollection(String collection, String query) {
        this.db.getCollection(collection).remove((DBObject) JSON.parse(query));
    }

    public JSONArray getJsonArrayOnceFromCollection(String collection, String arrayKey) {
        DBCursor sensorType = this.getFromCollection(collection, "");
        sensorType.hasNext();
        String dd = sensorType.next().toString();
        return new JSONObject(dd).getJSONArray(arrayKey);
    }

    public MapReduceOutput mongoMapReduce(String collection, String map, String reduce, DBObject query) {
        DBCollection col = db.getCollection(collection);
        MapReduceCommand cmd = new MapReduceCommand(col, map, reduce, null, MapReduceCommand.OutputType.INLINE,
                query);
        return col.mapReduce(cmd);
    }

}