// to get the random id
final AESemaphore sem = new AESemaphore( "DHTDB:cacheForward" );
contact.sendFindNode(
new DHTTransportReplyHandlerAdapter()
{
public void
findNodeReply(
DHTTransportContact _contact,
DHTTransportContact[] _contacts )
{
anti_spoof_done.add( _contact );
try{
// System.out.println( "cacheForward: pre-store findNode OK" );
List<HashWrapper> keys = (List<HashWrapper>)data[1];
byte[][] store_keys = new byte[keys.size()][];
DHTTransportValue[][] store_values = new DHTTransportValue[store_keys.length][];
keys_published[0] += store_keys.length;
for (int i=0;i<store_keys.length;i++){
HashWrapper wrapper = keys.get(i);
store_keys[i] = wrapper.getHash();
List<DHTDBValueImpl> values = republish.get( wrapper );
store_values[i] = new DHTTransportValue[values.size()];
values_published[0] += store_values[i].length;
for (int j=0;j<values.size();j++){
DHTDBValueImpl value = values.get(j);
// we reduce the cache distance by 1 here as it is incremented by the
// recipients
store_values[i][j] = value.getValueForRelay(local_contact);
}
}
List<DHTTransportContact> contacts = new ArrayList<DHTTransportContact>();
contacts.add( contact );
republish_ops[0]++;
control.putDirectEncodedKeys(
store_keys,
"Republish cache",
store_values,
contacts );
}finally{
sem.release();
}
}
public void
failed(
DHTTransportContact _contact,
Throwable _error )
{
try{
// System.out.println( "cacheForward: pre-store findNode Failed" );
DHTLog.log( "cacheForward: pre-store findNode failed " + DHTLog.getString( _contact ) + " -> failed: " + _error.getMessage());
router.contactDead( _contact.getID(), false);
}finally{
sem.release();
}
}
},
contact.getProtocolVersion() >= DHTTransportUDP.PROTOCOL_VERSION_ANTI_SPOOF2?new byte[0]:new byte[20] );
sem.reserve();
}
try{
this_mon.enter();
for (int i=0;i<stop_caching.size();i++){
DHTDBMapping mapping = (DHTDBMapping)stored_values.remove( stop_caching.get(i));
if ( mapping != null ){
removeFromPrefixMap( mapping );
mapping.destroy();
}
}
}finally{
this_mon.exit();
}
}
DHTStorageBlock[] direct_key_blocks = getDirectKeyBlocks();
if ( direct_key_blocks.length > 0 ){
for (int i=0;i<direct_key_blocks.length;i++){
final DHTStorageBlock key_block = direct_key_blocks[i];
List contacts = control.getClosestKContactsList( key_block.getKey(), false );
boolean forward_it = false;
// ensure that the key is close enough to us
for (int j=0;j<contacts.size();j++){
final DHTTransportContact contact = (DHTTransportContact)contacts.get(j);
if ( router.isID( contact.getID())){
forward_it = true;
break;
}
}
for (int j=0; forward_it && j<contacts.size();j++){
final DHTTransportContact contact = (DHTTransportContact)contacts.get(j);
if ( key_block.hasBeenSentTo( contact )){
continue;
}
if ( router.isID( contact.getID())){
continue; // ignore ourselves
}
if ( contact.getProtocolVersion() >= DHTTransportUDP.PROTOCOL_VERSION_BLOCK_KEYS ){
final Runnable task =
new Runnable()
{
public void
run()
{
contact.sendKeyBlock(
new DHTTransportReplyHandlerAdapter()
{
public void
keyBlockReply(
DHTTransportContact _contact )
{
DHTLog.log( "key block forward ok " + DHTLog.getString( _contact ));
key_block.sentTo( _contact );
}
public void
failed(
DHTTransportContact _contact,
Throwable _error )
{
DHTLog.log( "key block forward failed " + DHTLog.getString( _contact ) + " -> failed: " + _error.getMessage());
}
},
key_block.getRequest(),
key_block.getCertificate());
}
};
if ( anti_spoof_done.contains( contact )){
task.run();
}else{
contact.sendFindNode(
new DHTTransportReplyHandlerAdapter()
{
public void
findNodeReply(
DHTTransportContact contact,
DHTTransportContact[] contacts )