Пример #1
0
  public void save() {
    boolean isNoticed = false;
    if (!notice.isVisible()) {
      isNoticed = true;
      notice.setVisible(true);
      notice.setText("Saving...");
    }
    if (getOptions() != null) {
      DB database = null;
      try {
        database = factory.open(this.leveldbStore.getSelectedFile(), getOptions());
        DBIterator iterator = database.iterator();
        HashSet<byte[]> keys = new HashSet<>();

        for (iterator.seekToFirst(); iterator.hasNext(); iterator.next()) {
          keys.add(iterator.peekNext().getKey());
        }
        iterator.close();

        for (byte[] key : keys) {
          database.delete(key);
        }

        for (int i = 0; i < dataList.getModel().getSize(); ++i) {
          DBItem item = dataList.getModel().getElementAt(i);
          database.put(item.key, item.value);
        }
      } catch (Exception e) {
        JOptionPane.showMessageDialog(pane, "Unable to open database:\n" + e);
        e.printStackTrace();
      } finally {
        if (database != null) {
          try {
            database.close();
          } catch (IOException e) {
            JOptionPane.showMessageDialog(pane, "Unable to close database:\n" + e);
            e.printStackTrace();
          }
        }
        saveButton.setEnabled(false);
      }
    }
    if (isNoticed) {
      try {
        Thread.sleep(100);
      } catch (InterruptedException e) {
        e.printStackTrace();
      }
      notice.setVisible(false);
      notice.setText("");
    }
  }
Пример #2
0
 /**
  * ************************************************************************ Start Workflow.
  *
  * @param AD_Workflow_ID workflow
  * @return true if started
  */
 private boolean startWorkflow(int AD_Workflow_ID) {
   log.fine(AD_Workflow_ID + " - " + m_pi);
   boolean started = false;
   if (DB.isRemoteProcess()) {
     log.info("trying to running on the server");
     Server server = CConnection.get().getServer();
     try {
       if (server != null) { // 	See ServerBean
         log.info("running on the server");
         m_pi = server.workflow(m_wscctx, m_pi, AD_Workflow_ID);
         log.finest("server => " + m_pi);
         started = true;
       }
     } catch (Exception ex) {
       log.log(Level.SEVERE, "AppsServer error", ex);
       started = false;
     }
   }
   //	Run locally
   if (!started && !m_IsServerProcess) {
     log.info("running locally");
     MWorkflow wf = MWorkflow.get(m_wscctx, AD_Workflow_ID);
     MWFProcess wfProcess = null;
     if (m_pi.isBatch()) wfProcess = wf.start(m_pi); // 	may return null
     else wfProcess = wf.startWait(m_pi); // 	may return null
     started = wfProcess != null;
   }
   return started;
 } //  startWorkflow
  public void doPost(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {

    String deleteProductValue = "false";

    try {

      // Get the form data
      int productID = Integer.parseInt(request.getParameter("productID"));
      PrintWriter out = response.getWriter();
      DB db = mongo.getDB("FashionFactoryProd");
      DBCollection myProducts = db.getCollection("productInfo");
      DBCollection myTrending = db.getCollection("myTrending");
      BasicDBObject searchQuery = new BasicDBObject();
      searchQuery.put("productID", productID);
      DBCursor cursor = myProducts.find(searchQuery);

      if (cursor.count() == 0) {
        deleteProductValue = "false";
        request.setAttribute("deleteProductValue", deleteProductValue);
        RequestDispatcher rd = request.getRequestDispatcher("deleteProduct.jsp");
        rd.forward(request, response);
      } else {
        int product = 0;
        while (cursor.hasNext()) {

          BasicDBObject obj = (BasicDBObject) cursor.next();
          product = obj.getInt("productID");
          if (product == productID) {
            myProducts.remove(obj);
            myTrending.remove(searchQuery);
            deleteProductValue = "true";

            request.setAttribute("deleteProductValue", deleteProductValue);

            RequestDispatcher rd = request.getRequestDispatcher("deleteProduct.jsp");
            rd.forward(request, response);
          }
        }
      }
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
Пример #4
0
 public void delete(byte[] key) {
   if (getOptions() != null) {
     DB database = null;
     try {
       database = factory.open(this.leveldbStore.getSelectedFile(), getOptions());
       database.delete(key);
     } catch (Exception e) {
       JOptionPane.showMessageDialog(pane, "Unable to open database:\n" + e);
       e.printStackTrace();
     } finally {
       if (database != null) {
         try {
           database.close();
         } catch (IOException e) {
           JOptionPane.showMessageDialog(pane, "Unable to close database:\n" + e);
           e.printStackTrace();
         }
       }
     }
   }
 }
Пример #5
0
  /**
   * Load Regions (cached)
   *
   * @param ctx context
   */
  private static void loadAllRegions(Ctx ctx) {
    String sql = "SELECT * FROM C_Region WHERE IsActive='Y'";
    PreparedStatement pstmt = null;
    ResultSet rs = null;
    try {
      pstmt = DB.prepareStatement(sql, (Trx) null);
      rs = pstmt.executeQuery();
      while (rs.next()) {
        MRegion r = new MRegion(ctx, rs, null);
        s_regions.put(String.valueOf(r.getC_Region_ID()), r);
        if (r.isDefault()) s_default = r;
      }
    } catch (SQLException e) {
      s_log.log(Level.SEVERE, sql, e);
    } finally {
      DB.closeResultSet(rs);
      DB.closeStatement(pstmt);
    }

    s_log.fine(s_regions.size() + " - default=" + s_default);
  } //	loadAllRegions
Пример #6
0
 /**
  * ************************************************************************ Start Java Process
  * Class. instanciate the class implementing the interface ProcessCall. The class can be a
  * Server/Client class (when in Package org compiere.process or org.compiere.model) or a client
  * only class (e.g. in org.compiere.report)
  *
  * @return true if success
  */
 private boolean startProcess() {
   log.fine(m_pi.toString());
   boolean started = false;
   if (DB.isRemoteProcess()) {
     Server server = CConnection.get().getServer();
     try {
       if (server != null) { // 	See ServerBean
         m_pi = server.process(m_wscctx, m_pi);
         log.finest("server => " + m_pi);
         started = true;
       }
     } catch (UndeclaredThrowableException ex) {
       Throwable cause = ex.getCause();
       if (cause != null) {
         if (cause instanceof InvalidClassException)
           log.log(
               Level.SEVERE, "Version Server <> Client: " + cause.toString() + " - " + m_pi, ex);
         else
           log.log(Level.SEVERE, "AppsServer error(1b): " + cause.toString() + " - " + m_pi, ex);
       } else log.log(Level.SEVERE, " AppsServer error(1) - " + m_pi, ex);
       started = false;
     } catch (Exception ex) {
       Throwable cause = ex.getCause();
       if (cause == null) cause = ex;
       log.log(Level.SEVERE, "AppsServer error - " + m_pi, cause);
       started = false;
     }
   }
   //	Run locally
   if (!started && !m_IsServerProcess) {
     ProcessCall myObject = null;
     try {
       Class myClass = Class.forName(m_pi.getClassName());
       myObject = (ProcessCall) myClass.newInstance();
       if (myObject == null) m_pi.setSummary("No Instance for " + m_pi.getClassName(), true);
       else myObject.startProcess(m_wscctx, m_pi, m_trx);
       if (m_trx != null) {
         m_trx.commit();
         m_trx.close();
       }
     } catch (Exception e) {
       if (m_trx != null) {
         m_trx.rollback();
         m_trx.close();
       }
       m_pi.setSummary("Error starting Class " + m_pi.getClassName(), true);
       log.log(Level.SEVERE, m_pi.getClassName(), e);
     }
   }
   return !m_pi.isError();
 } //  startProcess
Пример #7
0
  void checkAuth(DB db) {
    if (db._username == null) return;
    if (_authed.containsKey(db)) return;

    if (_inauth) return;

    _inauth = true;
    try {
      if (db.reauth()) {
        _authed.put(db, true);
        return;
      }
    } finally {
      _inauth = false;
    }

    throw new MongoInternalException("can't reauth!");
  }
Пример #8
0
 /**
  * ************************************************************************ Start Database Process
  *
  * @param ProcedureName PL/SQL procedure name
  * @return true if success
  */
 private boolean startDBProcess(String ProcedureName) {
   //  execute on this thread/connection
   log.fine(ProcedureName + "(" + m_pi.getAD_PInstance_ID() + ")");
   String sql = "{call " + ProcedureName + "(?)}";
   try {
     CallableStatement cstmt = DB.prepareCall(sql, ResultSet.CONCUR_UPDATABLE, null); // 	ro??
     cstmt.setInt(1, m_pi.getAD_PInstance_ID());
     cstmt.executeUpdate();
     cstmt.close();
   } catch (Exception e) {
     log.log(Level.SEVERE, sql, e);
     m_pi.setSummary(Msg.getMsg(m_wscctx, "ProcessRunError") + " " + e.getLocalizedMessage());
     m_pi.setError(true);
     return false;
   }
   //	log.fine(Log.l4_Data, "ProcessCtl.startProcess - done");
   return true;
 } //  startDBProcess
Пример #9
0
  public void openDatabase(File select) {
    if (getOptions() != null) {
      DB database = null;
      try {
        database = factory.open(select, getOptions());
        DBIterator iterator = database.iterator();

        ArrayList<DBItem> data = new ArrayList<>();

        String reg = findField.getText().trim();

        for (iterator.seekToFirst(); iterator.hasNext(); iterator.next()) {
          if (reg.isEmpty()
              || new BigInteger(iterator.peekNext().getKey()).toString(16).contains(reg)
              || LevelDBViewer.toHexString(iterator.peekNext().getKey()).contains(reg)
              || new BigInteger(iterator.peekNext().getValue()).toString(16).contains(reg)
              || LevelDBViewer.toHexString(iterator.peekNext().getValue()).contains(reg)
              || new String(iterator.peekNext().getKey()).contains(reg)
              || new String(iterator.peekNext().getValue()).contains(reg)) {
            data.add(new DBItem(iterator.peekNext().getKey(), iterator.peekNext().getValue()));
          }
        }

        iterator.close();

        dialog.getRootPane().setDefaultButton(putButton);

        dataList.getSelectionModel().clearSelection();
        dataList.setListData(data.toArray(new DBItem[data.size()]));

        putButton.setEnabled(true);
        key.setEnabled(true);
        value.setEnabled(true);
        findField.setEnabled(true);
        deleteButton.setEnabled(true);
        putType.setEnabled(true);
        signedBox.setEnabled(true);
        // saveButton.setEnabled(true);

        hexValue.setText("");
        stringValue.setText("");
        hexKey.setText("");
        stringKey.setText("");

        lengthLabel.setText("");
        keyLength.setText("");
        valueLength.setText("");
      } catch (Exception e) {
        JOptionPane.showMessageDialog(pane, "Unable to open database:\n" + e);
        e.printStackTrace();
      } finally {
        if (database != null) {
          try {
            database.close();
          } catch (IOException e) {
            JOptionPane.showMessageDialog(pane, "Unable to close database:\n" + e);
            e.printStackTrace();
          }
        }
      }
    }
  }
Пример #10
0
  public static void main(String[] args) {

    try {

      meet myobj = new meet();

      // load jsiconfig.txt
      ArrayList<String> myconfiglist = new ArrayList<String>();
      myconfiglist = myobj.loadArray("jsiconfig.txt");

      // The text uri
      // "mongodb://*****:*****@ds023288.mongolab.com:23288/sample";
      String textUri = myconfiglist.get(0);

      // Create MongoClientURI object from which you get MongoClient obj
      MongoClientURI uri = new MongoClientURI(textUri);

      // Connect to that uri
      MongoClient m = new MongoClient(uri);

      // get the database named sample
      String DBname = myconfiglist.get(1);
      DB d = m.getDB(DBname);

      // get the collection mycollection in sample
      String collectionName = myconfiglist.get(2);
      DBCollection collection = d.getCollection(collectionName);

      // System.out.println("Config: "+textUri+":"+DBname+":"+collectionName);

      // twitter4j
      // Twitter twitter = new TwitterFactory().getInstance();
      Twitter twitter = new TwitterFactory().getSingleton();
      User user = twitter.verifyCredentials();

      // Twitter collection of latest tweets into the home account - defaulted to latest 20 tweets//
      //////////////////////////////////////////////////////////////

      ArrayList<String> mylatesttweetslist = new ArrayList<String>();
      // get list of tweets from a user or the next tweet listed
      try {
        long actid = 0;
        // twitter.createFriendship(actid);

        // The factory instance is re-useable and thread safe.
        // Twitter twitter = TwitterFactory.getSingleton();
        List<Status> statuses = twitter.getHomeTimeline();
        System.out.println("Showing home timeline.");

        for (Status status : statuses) {

          // System.out.println(status.getUser().getName() + ":" +status.getText());
          // Addes timeline to an array
          String mytweets = status.getUser().getName() + ":" + status.getText();
          mylatesttweetslist.add(mytweets);
        }
        ;

      } catch (TwitterException te) {
        te.printStackTrace();
        System.out.println("Failed to get timeline: " + te.getMessage());
        System.exit(-1);
      }

      // MongoDB Insert Below //
      //////////////////////////

      // System Date
      Date sd = new Date();
      String sysdate = sd.toString();

      // Toggle the below to display and insert the transactions as required
      boolean showtrans = true;
      boolean inserttrans = true;

      // checkArray - loads args to a text string to allow the contains function
      String checkString = "";
      for (int ck = 0; ck < args.length; ck++) {
        checkString = checkString + args[ck];
      }
      ;

      // display transactions flag on runnning jsimongo eg: java jsimongo -d  will NOT display
      // transactions
      // insert transactions flag on runnning jsimongo eg: java jsimongo -i  will NOT insert
      // transactions

      if (args.length > 0) {
        if (checkString.contains("-d")) showtrans = false;
        if (checkString.contains("-i")) inserttrans = false;
      }
      ;

      int x = 0;
      for (String atweet : mylatesttweetslist) {
        x++;
        // Display tweets to console
        if (showtrans == true) {
          System.out.println("tweet : " + atweet);
          System.out.println("Created_DateTime : " + sysdate); // was sysdate
        }
        ;

        // Insert JSON into MongoDB
        if (inserttrans == true) {
          BasicDBObject b = new BasicDBObject();
          System.out.println("tweet : " + atweet);
          System.out.println("Created_DateTime : " + sysdate); // was sysdate

          // Insert the JSON object into the chosen collection
          collection.insert(b);
        }
        ;
        Thread.sleep(1);
      }
      ;

      System.out.println("End, the number of tweets inserted at this time was: " + x);

    } catch (Exception e) {
      e.printStackTrace();
    }
  }
Пример #11
0
  public void run() {
    try {
      _db.init();
    } catch (DBException e) {
      e.printStackTrace();
      e.printStackTrace(System.out);
      return;
    }

    try {
      _workloadstate = _workload.initThread(_props, _threadid, _threadcount);
    } catch (WorkloadException e) {
      e.printStackTrace();
      e.printStackTrace(System.out);
      return;
    }

    // spread the thread operations out so they don't all hit the DB at the same time
    try {
      // GH issue 4 - throws exception if _target>1 because random.nextInt argument must be >0
      // and the sleep() doesn't make sense for granularities < 1 ms anyway
      if ((_target > 0) && (_target <= 1.0)) {
        sleep(Utils.random().nextInt((int) (1.0 / _target)));
      }
    } catch (InterruptedException e) {
      // do nothing.
    }

    try {
      if (_dotransactions) {
        long st = System.currentTimeMillis();

        while (((_opcount == 0) || (_opsdone < _opcount)) && !_workload.isStopRequested()) {

          if (!_workload.doTransaction(_db, _workloadstate)) {
            break;
          }

          _opsdone++;

          // throttle the operations
          if (_target > 0) {
            // this is more accurate than other throttling approaches we have tried,
            // like sleeping for (1/target throughput)-operation latency,
            // because it smooths timing inaccuracies (from sleep() taking an int,
            // current time in millis) over many operations
            while (System.currentTimeMillis() - st < ((double) _opsdone) / _target) {
              try {
                sleep(1);
              } catch (InterruptedException e) {
                // do nothing.
              }
            }
          }
        }
      } else {
        long st = System.currentTimeMillis();

        while (((_opcount == 0) || (_opsdone < _opcount)) && !_workload.isStopRequested()) {

          if (!_workload.doInsert(_db, _workloadstate)) {
            break;
          }

          _opsdone++;

          // throttle the operations
          if (_target > 0) {
            // this is more accurate than other throttling approaches we have tried,
            // like sleeping for (1/target throughput)-operation latency,
            // because it smooths timing inaccuracies (from sleep() taking an int,
            // current time in millis) over many operations
            while (System.currentTimeMillis() - st < ((double) _opsdone) / _target) {
              try {
                sleep(1);
              } catch (InterruptedException e) {
                // do nothing.
              }
            }
          }
        }
      }
    } catch (Exception e) {
      e.printStackTrace();
      e.printStackTrace(System.out);
      System.exit(0);
    }

    try {
      _db.cleanup();
    } catch (DBException e) {
      e.printStackTrace();
      e.printStackTrace(System.out);
      return;
    }
  }
Пример #12
0
  /**
   * Execute Process Instance and Lock UI. Calls lockUI and unlockUI if parent is a ASyncProcess
   *
   * <pre>
   * 	- Get Process Information
   *      - Call Class
   * 	- Submit SQL Procedure
   * 	- Run SQL Procedure
   * </pre>
   */
  public void run() {
    log.fine("AD_PInstance_ID=" + m_pi.getAD_PInstance_ID() + ", Record_ID=" + m_pi.getRecord_ID());

    //  Lock
    // lock();
    //	try {System.out.println(">> sleeping ..");sleep(20000);System.out.println(".. sleeping <<");}
    // catch (Exception e) {}

    //	Get Process Information: Name, Procedure Name, ClassName, IsReport, IsDirectPrint
    String ProcedureName = "";
    int AD_ReportView_ID = 0;
    int AD_Workflow_ID = 0;
    boolean IsReport = false;
    boolean IsDirectPrint = false;
    //
    String sql =
        "SELECT p.Name, p.ProcedureName,p.ClassName, p.AD_Process_ID," //	1..4
            + " p.isReport,p.IsDirectPrint,p.AD_ReportView_ID,p.AD_Workflow_ID," //	5..8
            + " CASE WHEN COALESCE(p.Statistic_Count,0)=0 THEN 0 ELSE p.Statistic_Seconds/p.Statistic_Count END CASE,"
            + " p.IsServerProcess "
            + "FROM AD_Process p"
            + " INNER JOIN AD_PInstance i ON (p.AD_Process_ID=i.AD_Process_ID) "
            + "WHERE p.IsActive='Y'"
            + " AND i.AD_PInstance_ID=?";
    if (!Env.isBaseLanguage(m_wscctx, "AD_Process"))
      sql =
          "SELECT t.Name, p.ProcedureName,p.ClassName, p.AD_Process_ID," //	1..4
              + " p.isReport, p.IsDirectPrint,p.AD_ReportView_ID,p.AD_Workflow_ID," //	5..8
              + " CASE WHEN COALESCE(p.Statistic_Count,0)=0 THEN 0 ELSE p.Statistic_Seconds/p.Statistic_Count END CASE,"
              + " p.IsServerProcess "
              + "FROM AD_Process p"
              + " INNER JOIN AD_PInstance i ON (p.AD_Process_ID=i.AD_Process_ID) "
              + " INNER JOIN AD_Process_Trl t ON (p.AD_Process_ID=t.AD_Process_ID"
              + " AND t.AD_Language='"
              + Env.getAD_Language(m_wscctx)
              + "') "
              + "WHERE p.IsActive='Y'"
              + " AND i.AD_PInstance_ID=?";
    //
    try {
      PreparedStatement pstmt =
          DB.prepareStatement(sql, ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY, null);
      pstmt.setInt(1, m_pi.getAD_PInstance_ID());
      ResultSet rs = pstmt.executeQuery();
      if (rs.next()) {
        m_pi.setTitle(rs.getString(1));
        if (m_waiting != null) m_waiting.setTitle(m_pi.getTitle());
        ProcedureName = rs.getString(2);
        m_pi.setClassName(rs.getString(3));
        m_pi.setAD_Process_ID(rs.getInt(4));
        //	Report
        if ("Y".equals(rs.getString(5))) {
          IsReport = true;
          if ("Y".equals(rs.getString(6)) && !Ini.isPropertyBool(Ini.P_PRINTPREVIEW))
            IsDirectPrint = true;
        }
        AD_ReportView_ID = rs.getInt(7);
        AD_Workflow_ID = rs.getInt(8);
        //
        int estimate = rs.getInt(9);
        if (estimate != 0) {
          m_pi.setEstSeconds(estimate + 1); //  admin overhead
          if (m_waiting != null) m_waiting.setTimerEstimate(m_pi.getEstSeconds());
        }
        m_IsServerProcess = "Y".equals(rs.getString(10));
      } else log.log(Level.SEVERE, "No AD_PInstance_ID=" + m_pi.getAD_PInstance_ID());
      rs.close();
      pstmt.close();
    } catch (SQLException e) {
      m_pi.setSummary(
          Msg.getMsg(m_wscctx, "ProcessNoProcedure") + " " + e.getLocalizedMessage(), true);
      // unlock();
      log.log(Level.SEVERE, "run", e);
      return;
    }

    //  No PL/SQL Procedure
    if (ProcedureName == null) ProcedureName = "";

    /** ******************************************************************** Workflow */
    if (AD_Workflow_ID > 0) {
      startWorkflow(AD_Workflow_ID);
      // unlock();
      return;
    }

    /** ******************************************************************** Start Optional Class */
    if (m_pi.getClassName() != null) {
      //	Run Class
      if (!startProcess()) {
        // unlock();
        return;
      }

      //  No Optional SQL procedure ... done
      if (!IsReport && ProcedureName.length() == 0) {
        // unlock ();
        return;
      }
      //  No Optional Report ... done
      if (IsReport && AD_ReportView_ID == 0) {
        // unlock ();
        return;
      }
    }

    //  If not a report, we need a prodedure name
    if (!IsReport && ProcedureName.length() == 0) {
      m_pi.setSummary(Msg.getMsg(m_wscctx, "ProcessNoProcedure"), true);
      // unlock();
      return;
    }

    /** ******************************************************************** Report submission */
    if (IsReport) {
      //	Optional Pre-Report Process
      if (ProcedureName.length() > 0) {
        if (!startDBProcess(ProcedureName)) {
          // unlock();
          return;
        }
      } //	Pre-Report

      //	Start Report	-----------------------------------------------
      boolean ok = ReportCtl.start(m_pi, IsDirectPrint);
      m_pi.setSummary("Report", !ok);
      // unlock ();
    }
    /** ******************************************************************** Process submission */
    else {
      if (!startDBProcess(ProcedureName)) {
        // unlock();
        return;
      }
      //	Success - getResult
      ProcessInfoUtil.setSummaryFromDB(m_pi);
      // unlock();
    } //	*** Process submission ***
    //	log.fine(Log.l3_Util, "ProcessCtl.run - done");
  } //  run
Пример #13
0
  public static void main(String[] args) {
    // TODO Auto-generated method stub
    try {
      MongoClient mc = new MongoClient("localhost");
      DB db = mc.getDB("mydb");
      DBCollection dbc = db.getCollection("books");
      /*BasicDBObject book=
      		new BasicDBObject();
      book.put("name", "자바의 정석");
      book.put("pages", 600);
      dbc.insert(book);

      book=
      		new BasicDBObject();
      book.put("name", "스프링4");
      book.put("pages", 250);
      dbc.insert(book);
      book=
      		new BasicDBObject();
      book.put("name", "JQuery");
      book.put("pages", 150);
      dbc.insert(book);
      book=
      		new BasicDBObject();
      book.put("name", "오라클 프로그램");
      book.put("pages", 800);
      dbc.insert(book);
      book=
      		new BasicDBObject();
      book.put("name", "AngularJS");
      book.put("pages", 130);
      dbc.insert(book);
      book=
      		new BasicDBObject();
      book.put("name", "MongoDB");
      book.put("pages", 650);
      dbc.insert(book);
      book=
      		new BasicDBObject();
      book.put("name", "Hadoop");
      book.put("pages", 300);
      dbc.insert(book);
      book=
      		new BasicDBObject();
      book.put("name", "HIVE");
      book.put("pages", 350);
      dbc.insert(book);
      book=
      		new BasicDBObject();
      book.put("name", "PIG");
      book.put("pages", 650);
      dbc.insert(book);
      book=
      		new BasicDBObject();
      book.put("name", "HTML5");
      book.put("pages", 360);
      dbc.insert(book);*/
      String map =
          "function(){"
              + "var category;"
              + "if(this.pages>=300){"
              + "category='Big Books';"
              + "}else{"
              + "category='Small Books';}"
              + "emit(category,{name:this.name});}";
      String reduce =
          "function(key,values){"
              + "var sum=0;"
              + "values.forEach(function(doc){"
              + "sum+=1;"
              + "});"
              + "return {books:sum};}";
      MapReduceCommand cmd =
          new MapReduceCommand(dbc, map, reduce, null, MapReduceCommand.OutputType.INLINE, null);
      MapReduceOutput out = dbc.mapReduce(cmd);

      for (DBObject o : out.results()) {
        System.out.println(o.toString());
      }
    } catch (Exception ex) {
      System.out.println(ex.getMessage());
    }
  }