/**
* Here we manage the registered peers: - set crt as first in loaded_peers it may have been part
* of the list before but we assume that its message was accounted in current_space
*
* @param crt
*/
private static void register_loaded(D_DirectoryEntry crt) {
ArrayList<D_DirectoryEntry> rem = new ArrayList<D_DirectoryEntry>();
// crt.encoder = crt.getEncoder();
// if(crt.loaded_globals) crt.component_node.message = crt.encode(); //crt.encoder.getBytes();
synchronized (loaded_peers) {
if (DEBUG) System.out.println("DSCache:register_loaded registering " + crt);
if (crt.get_DDP2P_DoubleLinkedList_Node() == null) {
boolean result = loaded_peers.offerFirst(crt);
if (DEBUG) System.out.println("DSCache:register_loaded registered " + result);
if (DEBUG) System.out.println("DSCache:register_loaded " + loaded_peers);
// loaded_peer_By_LocalID.put(new Long(crt._peer_ID), crt);
loaded_peer_By_GID.put(crt.globalID, crt);
loaded_peer_By_GIDhash.put(crt.globalIDhash, crt);
if (crt.component_node.message != null) {
current_space += crt.component_node.message.length;
}
} else {
loaded_peers.moveToFront(crt);
}
while ((loaded_peers.size() > MAX_LOADED_PEERS) || (current_space > MAX_PEERS_RAM)) {
if (loaded_peers.size() <= MIN_PEERS_RAM) break; // at least _crt_peer and _myself
// D_DirectoryEntry candidate = loaded_peers.getTail();
// if((candidate == D_DirectoryEntry._crt_peer)||(candidate ==
// D_DirectoryEntry._myself)){
// setRecent(candidate);
// continue;
// }
D_DirectoryEntry removed = loaded_peers.removeTail(); // remove(loaded_peers.size()-1);
// loaded_peer_By_LocalID.remove(new Long(removed._peer_ID));
loaded_peer_By_GID.remove(removed.globalID);
loaded_peer_By_GIDhash.remove(removed.globalIDhash);
if (removed.component_node.message != null)
current_space -= removed.component_node.message.length;
if (D_Directory_Storage.need_saving_contains(removed.globalIDhash, removed.instance))
rem.add(removed);
}
}
if (DEBUG) System.out.println("DSCache:register_loaded cleaned " + loaded_peers);
for (D_DirectoryEntry removed : rem) {
try {
synchronized (D_Directory_Storage.saver_thread_monitor) {
if (D_Directory_Storage.need_saving_contains(removed.globalIDhash, removed.instance))
removed.update();
}
} catch (P2PDDSQLException e) {
e.printStackTrace();
}
}
if (DEBUG) System.out.println("DSCache:register_loaded exit " + loaded_peers);
}
/**
* Add a new instance to an existing peer cache.
*
* <p>Since the peer is assumed preloaded in the cache, instance not needed in global
* hashtables.
*
* @param crt
*/
public static void register_loaded_instance(D_DirectoryEntry crt) {
ArrayList<D_DirectoryEntry> rem = new ArrayList<D_DirectoryEntry>();
synchronized (loaded_peers) {
loaded_peers.offerFirst(crt);
if (crt.component_node.message != null) current_space += crt.component_node.message.length;
/** Disconnect overflowing instances from list, set them in "removed" */
while ((loaded_peers.size() > MAX_LOADED_PEERS) || (current_space > MAX_PEERS_RAM)) {
if (loaded_peers.size() <= MIN_PEERS_RAM) break; // at least _crt_peer and _myself
D_DirectoryEntry removed = loaded_peers.removeTail(); // remove(loaded_peers.size()-1);
if (removed.component_node.message != null)
current_space -= removed.component_node.message.length;
if (D_Directory_Storage.need_saving_contains(removed.globalIDhash, removed.instance))
rem.add(removed);
else {
for (D_DirectoryEntry a : removed.instances.values()) {
if (D_Directory_Storage.need_saving_contains(a.globalIDhash, a.instance)) rem.add(a);
}
}
}
}
/** Do the saving */
for (D_DirectoryEntry removed : rem) {
try {
synchronized (D_Directory_Storage.saver_thread_monitor) {
if (D_Directory_Storage.need_saving_contains(removed.globalIDhash, removed.instance))
removed.update();
for (D_DirectoryEntry a : removed.instances.values()) {
if (D_Directory_Storage.need_saving_contains(a.globalIDhash, a.instance)) a.update();
}
}
} catch (P2PDDSQLException e) {
e.printStackTrace();
}
}
}
/**
* Move this to the front of the list of items (tail being trimmed)
*
* @param crt
*/
private static void setRecent(D_DirectoryEntry crt) {
loaded_peers.moveToFront(crt);
}
/** @return */
private static String dumpDirCache() {
String s = "[";
s += loaded_peers.toString();
s += "]";
return s;
}