final void updateRecord(Version shared, Session session, byte[] uid, long currentRecord, long newRecord, int id) {
if (Debug.ENABLED)
Debug.assertion(newRecord != currentRecord);
int index = _updatedVersions.add(shared);
if (index == _updatedVersionsRecords.length)
_updatedVersionsRecords = Utils.extend(_updatedVersionsRecords);
_updatedVersionsRecords[index] = newRecord;
// Sessions
int sessionIndex = _updatedSessions.indexOf(session);
long records = sessionIndex >= 0 ? _updatedSessionsRecords[sessionIndex] : session.getRecords();
final long initialRecords = records;
if (records == Record.NOT_STORED)
records = _sessions.fetch(uid);
if (records != Record.NOT_STORED) {
byte[] data = getRecordManager().fetch(records);
if (Debug.ENABLED) {
Debug.assertion(data.length == Session.TOTAL_LENGTH * 8);
Debug.assertion(Utils.readLong(data, id * 8) == currentRecord);
}
Utils.writeLong(data, id * 8, newRecord);
getRecordManager().update(records, data, 0, data.length);
} else {
byte[] data = new byte[Session.TOTAL_LENGTH * 8];
Utils.writeLong(data, id * 8, newRecord);
records = getRecordManager().insert(data, 0, data.length);
_sessions.put(uid, records);
}
if (records != initialRecords) {
index = _updatedSessions.add(session);
if (index == _updatedSessionsRecords.length)
_updatedSessionsRecords = Utils.extend(_updatedSessionsRecords);
_updatedSessionsRecords[index] = records;
}
}
/**
* *********************************************************************** test client
* ***********************************************************************
*/
public static void main(String[] args) {
BTree<String, String> st = new BTree<String, String>();
// st.put("www.cs.princeton.edu", "128.112.136.12");
st.put("www.cs.princeton.edu", "128.112.136.11");
st.put("www.princeton.edu", "128.112.128.15");
st.put("www.yale.edu", "130.132.143.21");
st.put("www.simpsons.com", "209.052.165.60");
st.put("www.apple.com", "17.112.152.32");
st.put("www.amazon.com", "207.171.182.16");
st.put("www.ebay.com", "66.135.192.87");
st.put("www.cnn.com", "64.236.16.20");
st.put("www.google.com", "216.239.41.99");
st.put("www.nytimes.com", "199.239.136.200");
st.put("www.microsoft.com", "207.126.99.140");
st.put("www.dell.com", "143.166.224.230");
st.put("www.slashdot.org", "66.35.250.151");
st.put("www.espn.com", "199.181.135.201");
st.put("www.weather.com", "63.111.66.11");
st.put("www.yahoo.com", "216.109.118.65");
StdOut.println("cs.princeton.edu: " + st.get("www.cs.princeton.edu"));
StdOut.println("hardvardsucks.com: " + st.get("www.harvardsucks.com"));
StdOut.println("simpsons.com: " + st.get("www.simpsons.com"));
StdOut.println("apple.com: " + st.get("www.apple.com"));
StdOut.println("ebay.com: " + st.get("www.ebay.com"));
StdOut.println("dell.com: " + st.get("www.dell.com"));
StdOut.println();
StdOut.println("size: " + st.size());
StdOut.println("height: " + st.height());
StdOut.println(st);
StdOut.println();
}
