/**
* This method returns the desired RREQ entry OtherWise the method returns and remove the RREQ
* entry from the table
*
* @param sourceAddress the originator of the RREQ broadcast
* @param broadcastID the ID of the RREQ broadcast
* @param removeEntry is set to true if the table also should remove the entry in the table
* @return returns a RREQ entry
* @throws NoSuchRouteException Thrown if no table information is known about the entry
*/
public RouteEntry getRouteRequestEntry(String sourceAddress, int broadcastID, boolean removeEntry)
throws NoSuchRouteException {
synchronized (tableLock) {
RouteRequestEntry entry =
(RouteRequestEntry) entries.get(new EntryKey(sourceAddress, broadcastID));
if (entry != null) {
if (removeEntry) {
removeEntry(entry.getSourceAddress(), entry.getBroadcastID());
}
return entry;
}
throw new NoSuchRouteException();
}
}
/**
* Adds the given entry to the RREQ table
*
* @param rreqEntry the entry to be stored
* @param setTimer is set to false if the timer should not start count down the entry's time
* @return returns true if the route were added successfully. A successful add requires that no
* matching entry exists in the table
*/
public boolean addRouteRequestEntry(RouteRequestEntry rreqEntry, boolean setTimer) {
synchronized (tableLock) {
EntryKey key = new EntryKey(rreqEntry.getSourceAddress(), rreqEntry.getBroadcastID());
if (!entries.containsKey(key)) {
entries.put(key, rreqEntry);
Debug.print(toString());
if (setTimer) {
sortedEntries.addLast(rreqEntry);
}
return true;
}
return false;
}
}
public void setRouteRequestTimer(String sourceAddres, int broadcastID)
throws NoSuchRouteException {
RouteRequestEntry rreqEntry = entries.get(new EntryKey(sourceAddres, broadcastID));
// Debug.print("rreqEntry:"+ rreqEntry);
if (rreqEntry != null) {
rreqEntry.resetAliveTimeLeft();
synchronized (tableLock) {
sortedEntries.addLast(rreqEntry);
}
return;
}
Debug.print("FFF222");
throw new NoSuchRouteException();
}
public String toString() {
synchronized (tableLock) {
if (entries.isEmpty()) {
return "RouteRequestTable is empty\n";
}
String returnString =
"---------------------\n" + "|Route Request Table:\n" + "---------------------";
for (RouteRequestEntry f : entries.values()) {
returnString +=
"\n"
+ "|Dest: "
+ f.getDestinationAddress()
+ " destSeqN: "
+ f.getDestinationSequenceNumber()
+ " src: "
+ f.getSourceAddress()
+ " broadID: "
+ f.getBroadcastID()
+ " retries left: "
+ f.getRetriesLeft()
+ " hopCount: "
+ f.getHopCount()
+ " TTL: "
+ (f.getAliveTimeLeft() - System.currentTimeMillis());
}
return returnString + "\n---------------------\n";
}
}
