String FROM_NAME = context.get("FROM_NAME") == null ? "": (String)context.get("FROM_NAME");
String FROM_ADDRESS = context.get("FROM_ADDRESS") == null ? "": (String)context.get("FROM_ADDRESS");
String FROM_CITY = context.get("FROM_CITY") == null ? "": (String)context.get("FROM_CITY");
String FROM_STATE = context.get("FROM_STATE") == null ? "": (String)context.get("FROM_STATE");
String FROM_POSTALCODE = context.get("FROM_POSTALCODE") == null ? "": (String)context.get("FROM_POSTALCODE");
String TO_NAME = context.get("TO_NAME") == null ? "": (String)context.get("TO_NAME");
String SERIAL_NUMBER = context.get("SERIAL_NUMBER") == null ? "": (String)context.get("SERIAL_NUMBER");
String PART_NUMBER = context.get("PART_NUMBER") == null ? "": (String)context.get("PART_NUMBER");

String FileOutData = "";

FileOutData = "~<<<Data Content Of File>>>/nFROM:"+FROM_NAME+" \nFromAddress:"+FROM_ADDRESS+"* \nFrom City"+FROM_CITY+" , "+FROM_STATE+"/nFrom Postal COde:"+FROM_POSTALCODE+"* \nTo Name: "+TO_NAME+"* \nSeriol Number of Package: "+SERIAL_NUMBER+"* \nPart Number of Package: "+PART_NUMBER+"

service.write((FileOutData).getBytes(),"default");