public void addSale(int machine, int item, double profit, String date) throws Exception {
String request = Const.ADD_SALE + " " + machine + " " + item + " " + profit + " " + date;
out.write(request.getBytes());
out.flush();
byte[] buffer = new byte[1024];
int len;
len = in.read(buffer);
String reply = new String(buffer, 0, len);
if (reply.startsWith(Const.ERROR)) {
throw new Exception(reply.substring(Const.ERROR.length()));
}
}
public void updateSyncDate(int machine) throws Exception {
String request = Const.UPDATE_SYNC_DATE + " " + machine;
out.write(request.getBytes());
out.flush();
byte[] buffer = new byte[1024];
int len;
len = in.read(buffer);
String reply = new String(buffer, 0, len);
if (reply.startsWith(Const.ERROR)) {
throw new Exception(reply.substring(Const.ERROR.length()));
}
}
public void updateMachineItemQuantity(int machine, int item, int quantity) throws Exception {
String request =
Const.UPDATE_MACHINE_ITEM_QUANTITY + " " + machine + " " + item + " " + quantity;
out.write(request.getBytes());
out.flush();
byte[] buffer = new byte[1024];
int len;
len = in.read(buffer);
String reply = new String(buffer, 0, len);
if (reply.startsWith(Const.ERROR)) {
throw new Exception(reply.substring(Const.ERROR.length()));
}
}
public String getFile(String path) throws Exception {
String request = Const.GET_FILE + " " + path;
out.write(request.getBytes());
out.flush();
byte[] buffer = new byte[1024];
int len;
len = in.read(buffer);
String reply = new String(buffer, 0, len);
if (reply.startsWith(Const.OK)) {
return reply.substring(Const.OK.length());
} else {
throw new Exception(reply.substring(Const.ERROR.length()));
}
}
public String getUpdatedIDs(int machine) throws Exception {
String request = Const.GET_UPDATED_IDS + " " + machine;
out.write(request.getBytes());
out.flush();
byte[] buffer = new byte[1024];
int len;
len = in.read(buffer);
String reply = new String(buffer, 0, len);
if (reply.startsWith(Const.OK)) {
return reply.substring(Const.OK.length());
} else {
throw new Exception(reply.substring(Const.ERROR.length()));
}
}
public int checkMachine(int machineId) throws Exception {
String request = Const.CHECK_MACHINE + " " + machineId;
out.write(request.getBytes());
out.flush();
byte[] buffer = new byte[1024];
int len;
len = in.read(buffer);
String reply = new String(buffer, 0, len);
if (reply.startsWith(Const.OK)) {
return Integer.parseInt(reply.substring(Const.OK.length()));
} else {
throw new Exception(reply.substring(Const.ERROR.length()));
}
}
