protected String parseBlockHash(NetworkPeers.Peer remotePeer) {
ObjectUtils.checkNotNull(remotePeer);
if (remotePeer.block == null) {
return null;
}
int index = remotePeer.block.indexOf("-");
if (index == -1) {
return null;
}
String hash = remotePeer.block.substring(index + 1);
return hash;
}
protected Integer parseBlockNumber(NetworkPeers.Peer remotePeer) {
ObjectUtils.checkNotNull(remotePeer);
if (remotePeer.block == null) {
return null;
}
int index = remotePeer.block.indexOf("-");
if (index == -1) {
return null;
}
String str = remotePeer.block.substring(0, index);
try {
return Integer.parseInt(str);
} catch (NumberFormatException e) {
return null;
}
}
@Override
public List<Peer> findPeers(
Peer peer,
String status,
EndpointProtocol endpointProtocol,
Integer currentBlockNumber,
String currentBlockHash) {
ObjectUtils.checkNotNull(peer);
List<Peer> result = new ArrayList<Peer>();
NetworkPeers remoteResult = httpService.executeRequest(peer, URL_PEERS, NetworkPeers.class);
for (NetworkPeers.Peer remotePeer : remoteResult.peers) {
boolean match =
(status == null || status.equalsIgnoreCase(remotePeer.status))
&& (currentBlockNumber == null
|| currentBlockNumber.equals(parseBlockNumber(remotePeer)))
&& (currentBlockHash == null || currentBlockHash.equals(parseBlockHash(remotePeer)));
if (match) {
for (NetworkPeering.Endpoint endpoint : remotePeer.endpoints) {
match = endpointProtocol == null || endpointProtocol == endpoint.protocol;
if (match) {
Peer childPeer = toPeer(endpoint);
if (childPeer != null) {
result.add(childPeer);
}
}
}
}
}
return result;
}