Ejemplo n.º 1
0
  /*
   * (non-Javadoc)
   *
   * @see com.dtcc.awsticker.dao.IDaoTicker#getAllTickerRows()
   */
  public List<TickerRow> getAllTickerRows() {
    // return LocalTickerTable.getAll();
    List<TickerRow> rows = new ArrayList<TickerRow>();

    ScanRequest scanRequest = new ScanRequest(tableName);
    ScanResult scanResult = db.scan(scanRequest);
    List<Map<String, AttributeValue>> items = scanResult.getItems();
    if (items == null || items.isEmpty()) return rows;
    for (Map<String, AttributeValue> item : items) {

      Integer index = new Integer(0);
      try {
        index = Integer.decode(item.get("Index").getN());
      } catch (NumberFormatException e) {
        log.warning("bad key " + e);
      }

      TickerRow tr = new TickerRow();
      tr.setIndex(index);
      ItemToModel(item, tr);
      rows.add(tr);
    }

    return rows;
  }
Ejemplo n.º 2
0
 /** transfers data from Item to TickerRow */
 private void ItemToModel(Map<String, AttributeValue> item, TickerRow tr) {
   for (String attribute : item.keySet()) {
     if (attribute.equals("Name")) {
       tr.setName(item.get(attribute).getS());
     } else if (attribute.equals("Price")) {
       tr.setPrice(item.get(attribute).getS());
     } else if (attribute.equals("Number")) {
       tr.setNumber(item.get(attribute).getS());
     } else if (attribute.equals("Time")) {
       tr.setDateTime(item.get(attribute).getS());
     }
   }
 }
Ejemplo n.º 3
0
 private Integer getNextIndex() {
   int nextIndex = 0;
   // TODO not efficient, but...
   List<TickerRow> list = getAllTickerRows();
   // Get the maximum value.
   for (TickerRow tickerRow : list) {
     if (tickerRow.getIndex().intValue() > nextIndex) {
       nextIndex = tickerRow.getIndex().intValue();
     }
   }
   // Add one for the next one.
   nextIndex += 1;
   return new Integer(nextIndex);
 }
Ejemplo n.º 4
0
  /*
   * (non-Javadoc)
   *
   * @see com.dtcc.awsticker.dao.IDaoTicker#getTickerRow(java.lang.Integer)
   */
  public TickerRow getTickerRow(Integer index) {
    // return LocalTickerTable.get(index);

    AttributeValue id = new AttributeValue().withN(index + "");
    Key primaryKey = new Key().withHashKeyElement(id);
    GetItemRequest request = new GetItemRequest().withTableName(tableName).withKey(primaryKey);

    GetItemResult result = db.getItem(request);
    if (result.getItem() == null) return null;
    TickerRow tr = new TickerRow();
    tr.setIndex(index);
    ItemToModel(result.getItem(), tr);

    return tr;
  }
Ejemplo n.º 5
0
  /*
   * (non-Javadoc)
   *
   * @see com.dtcc.awsticker.dao.IDaoTicker#putTickerRow(java.lang.Integer,
   * com.dtcc.awsticker.domain.TickerRow)
   */
  public void putTickerRow(Integer index, TickerRow tickerRow) {
    // LocalTickerTable.put(index, tickerRow);

    Map<String, AttributeValue> item = new HashMap<String, AttributeValue>();

    item.put("Index", new AttributeValue().withN("" + tickerRow.getIndex()));
    // item.put("Date", new AttributeValue(tickerRow.getDate()));
    item.put("Name", new AttributeValue(tickerRow.getName()));
    item.put("Number", new AttributeValue(tickerRow.getNumber()));
    item.put("Price", new AttributeValue(tickerRow.getPrice()));
    item.put("Time", new AttributeValue(tickerRow.getDateTime()));
    item.put("CreatedTimeMs", new AttributeValue("" + System.currentTimeMillis()));

    PutItemRequest putItemRequest = new PutItemRequest(tableName, item);
    PutItemResult putItemResult = db.putItem(putItemRequest);
  }