public void checkConnections() {
// First we check to see if we have at least 16 valid connections
for (Connection c : this.connections) {
if (!c.isValid()) {
// Remove this connection
this.connections.remove(c);
// Add another connection
// This is done in a separate thread so as to not disturb the
// rest of the program
Thread connectionFinder =
new Thread(
new Runnable() {
@Override
public void run() {
for (Connection c1 : getConnections()) {
if (c1.isValid()) {
addConnections(c1.getPeerList());
}
}
}
});
connectionFinder.start();
}
}
}
public boolean isConnectionValid() {
try {
return conn.isValid(0);
} catch (SQLException e) {
printSQLException(e);
return false;
}
}
protected Connection getConnection() {
try {
if (connection != null && connection.isValid(6)) return connection;
} catch (SQLException e) {
e.printStackTrace();
}
return connection = createConnection();
}
/** @param peerList */
public void addConnections(BigFastList<StringBuffer> peerList) {
// Go through the peerList of a node we are directly connected to
for (StringBuffer s : peerList) {
// Create a new connection object
Connection c = new Connection(s, this.getCurCoin());
// Check if the connection can be established
if (c.isValid() && !checkDuplicate(c)) {
// Add a connection and break
this.connections.add(c);
// We break after only one successful connection is added to
// ensure node diversity
break;
} // otherwise try with the next IP
}
}
public boolean isValid(int i) throws SQLException {
return conn.isValid(i);
}