/**
* get an available connection and set the boolean flag to true (unavailable) in the connection
* pool. Also removes any stale connections, since this method gets called more than add or
* remove.
*
* @param callerSecurityToken The security token of the caller
* @param p_protocol The protocol for the connection
* @param p_host The Hostname for the connection
* @param p_port The port number for the connection
* @return A stream connection element or null if not found
*/
public synchronized StreamConnectionElement get(
SecurityToken callerSecurityToken, String p_protocol, String p_host, int p_port) {
StreamConnectionElement result = null;
long c_time = System.currentTimeMillis();
Enumeration cons = m_connections.elements();
callerSecurityToken.checkIfPermissionAllowed(Permissions.MIDP);
while (cons.hasMoreElements()) {
StreamConnectionElement sce = (StreamConnectionElement) cons.nextElement();
if ((c_time - sce.m_time) > m_connectionLingerTime) {
if (!sce.m_in_use) {
sce.close();
} else {
// signal returnToUse() to close
sce.m_removed = true;
}
m_connections.removeElement(sce);
continue;
}
if (p_host.equals(sce.m_host)
&& p_port == sce.m_port
&& p_protocol.equals(sce.m_protocol)
&& !sce.m_in_use) {
result = sce;
// do not break out so old connections can be removed
continue;
}
}
if (result != null) {
result.m_in_use = true;
}
return result;
}
