Beispiel #1
0
  /**
   * The transaction registers the negated sum of the shares as an expense by a group of
   * contributors. Additionally all the shares in the map are registered with the same entry id.
   * Those names in the deals map that are empty <code>String</code> trigger transfers of internal
   * amounts. Such an internal transfer is not allowed if the transaction causes a negative total.
   *
   * @param deals the names of the contributors and their contributions who expended an amount
   *     matching the negated sum of the deals
   * @param comment a <code>String</code> to make the transaction recognizable
   * @param shares a <code>ShareMap</code> containing the shares of participants involved
   * @return the entry id of the transaction or a negative value in case the transaction failed
   */
  public int performComplexExpense(ShareMap deals, String comment, ShareMap shares) {
    int entryId = -1;

    int transactionCode = 3;
    int flags = composeFlags(transactionCode, true);

    double amount = deals.sum();
    if (Math.abs(amount + shares.sum()) < ShareUtil.delta) {
      if (deals.option != null)
        switch (deals.option) {
          default:
            setDebtLimit(1000. * deals.option);
            break;
        }

      if (deals.rawMap.containsKey(kitty))
        entryId = performTransfer(kitty, -deals.rawMap.get(kitty), comment, kitty);
      else entryId = getNewEntryId();

      Collection<String> dealers = ShareUtil.filter(deals.rawMap.keySet(), true, ShareUtil.isKitty);

      for (String name : dealers) {
        long rowId =
            addRecord(
                entryId,
                name,
                deals.rawMap.get(name),
                currency,
                Helper.timestampNow(),
                comment,
                flags);
        if (rowId < 0) {
          entryId = -1;
          break;
        }
      }
    } else
      Log.w(
          TAG,
          String.format(
              "the sum of the deals (%f) for '%s' doesn't match the sum of the shares (%f)",
              amount, comment, shares.sum()));

    if (entryId > -1) {
      if (allocate(flags, entryId, shares.rawMap)) {
        Log.i(
            TAG,
            String.format(
                "entry %d: %s expended %f %s for '%s' shared by %s",
                entryId, deals.toString(), Math.abs(amount), currency, comment, shares.toString()));
      } else {
        removeEntry(entryId);
        entryId = -1;
      }
    }

    if (entryId < 0) removeEntry(entryId);

    return entryId;
  }