private static void saveRecordToMap(Record record) {
if (recordMap.get(record.getRecordType()) == null) {
ArrayList<Record> recordList = new ArrayList<>();
recordList.add(record);
recordMap.put(record.getRecordType(), recordList);
} else {
ArrayList<Record> recordList = recordMap.get(record.getRecordType());
recordList.add(record);
}
}
public static void beginParsing() throws IOException {
recordMap = new HashMap<>();
tableMap = new Maps().generateTableMap();
File vaxFile = new File(FILE_PATH + File.separator + FILE_NAME);
BufferedReader theFile = new BufferedReader(new FileReader(vaxFile));
String line = "";
int lineNum = 0;
while ((line = theFile.readLine()) != null) {
lineNum++;
parseLine(lineNum, line);
}
// Close the BufferedReader.
if (theFile != null) {
theFile.close();
}
// Print map contents:
writeToLog("\n--------------- PARSING FINISHED ---------------\n");
// writeToFile("Record Map values: ");
for (Entry<Integer, ArrayList<Record>> entry : recordMap.entrySet()) {
// writeToFile("\nRecord type: " + entry.getKey());
for (Record record : entry.getValue()) {
/*writeToFile("\tType: " + record.getRecordType() + " Action: "
+ record.getActionCode() + " Ref: " + record.getReferenceId());*/
// + " Record: " + record.getText());
String action = "";
switch (record.getActionCode()) {
case 51:
action = "INSERT";
break;
case 53:
action = "UPDATE";
break;
case 54:
action = "DELETE";
break;
default:
action = "NOTRECOGNIZED";
break;
}
writeToFile(
tableMap.get(record.getRecordType()) + "," + action + "," + record.getReferenceId());
}
}
// Close Buffered Writers.
if (theLog != null) {
theLog.close();
}
if (theOutputFile != null) {
theOutputFile.close();
}
}
public static void parseLine(int lineNum, String line) throws IOException {
MessageHeader msgHdr = new MessageHeader(line.substring(0, 12));
MessageTypeHeader msgTypeHdr = new MessageTypeHeader(line.substring(12, 104));
int declaredMessageLength = msgHdr.getMessageLength();
int declaredRecordDataLength = msgTypeHdr.getRecordDataLength();
// Validation to ensure the line contents match the lengths declaration.
// 12 chars before the message length declaration.
// 104 chars before the record data length declaration.
if (declaredMessageLength + 12 == line.length()
&& declaredRecordDataLength + 104 == line.length()) {
writeToLog(lineNum + ": " + "Declared lengths match the actual line length.");
int currPos = 104;
while (true) {
RecordHeader rcdHdr = new RecordHeader(line.substring(currPos, currPos + 20));
int recordLength = rcdHdr.getRecordLength();
currPos = currPos + 20;
Record record;
if (keyMap.get(rcdHdr.getRecordType()) != null) {
// String recordText = line.substring(currPos - 1, currPos + recordLength - 1);
String recordText = line.substring(currPos, currPos + recordLength);
String recordReferenceId = "|";
// Build the reference identifier based on the record keys defined in the Key Map
for (Key key : keyMap.get(rcdHdr.getRecordType())) {
recordReferenceId =
recordReferenceId
+ recordText.substring(
key.getKeyPosition(), key.getKeyPosition() + key.getKeyLength())
+ "|";
}
record =
new Record(
rcdHdr.getRecordType(),
recordReferenceId,
rcdHdr.getRecordActionCode(),
recordText);
writeToLog(record.getText().length() + ": " + record.getText());
saveRecordToMap(record);
} else {
writeToLog("Record type " + rcdHdr.getRecordType() + " is not supported.");
}
currPos = currPos + recordLength;
if (currPos >= line.length()) {
break;
}
}
} else {
writeToLog(
lineNum
+ ": "
+ "Line is invalid. Declared message lengths do not match the actual length.");
}
}