public CEPASPurse getPurse(int purseId) throws IOException {
try {
byte[] purseBuff =
sendRequest((byte) 0x32, (byte) (purseId), (byte) 0, (byte) 0, new byte[] {(byte) 0});
if (purseBuff != null) {
return new CEPASPurse(purseId, purseBuff);
} else {
return new CEPASPurse(purseId, "No purse found");
}
} catch (CEPASException ex) {
Log.w(TAG, "Error reading purse " + purseId, ex);
return new CEPASPurse(purseId, ex.getMessage());
}
}
public CEPASHistory getHistory(int purseId, int recordCount) throws IOException {
try {
byte[] fullHistoryBuff = null;
byte[] historyBuff =
sendRequest(
(byte) 0x32,
(byte) (purseId),
(byte) 0,
(byte) 1,
new byte[] {(byte) 0, (byte) (recordCount <= 15 ? recordCount * 16 : 15 * 16)});
if (historyBuff != null) {
if (recordCount > 15) {
byte[] historyBuff2 = null;
try {
historyBuff2 =
sendRequest(
(byte) 0x32,
(byte) (purseId),
(byte) 0,
(byte) 1,
new byte[] {(byte) 0x0F, (byte) ((recordCount - 15) * 16)});
} catch (CEPASException ex) {
Log.w(TAG, "Error reading 2nd purse history " + purseId, ex);
}
fullHistoryBuff =
new byte[historyBuff.length + (historyBuff2 != null ? historyBuff2.length : 0)];
System.arraycopy(historyBuff, 0, fullHistoryBuff, 0, historyBuff.length);
if (historyBuff2 != null)
System.arraycopy(
historyBuff2, 0, fullHistoryBuff, historyBuff.length, historyBuff2.length);
} else {
fullHistoryBuff = historyBuff;
}
}
if (fullHistoryBuff != null) {
return new CEPASHistory(purseId, fullHistoryBuff);
} else {
return new CEPASHistory(purseId, "No history found");
}
} catch (CEPASException ex) {
Log.w(TAG, "Error reading purse history " + purseId, ex);
return new CEPASHistory(purseId, ex.getMessage());
}
}