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package com.orbekk.same.discovery;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class DiscoveryServiceImpl implements DiscoveryService {
public final static long EXPIRE_TIME = 15 * 60l * 1000; // 15 minutes
List<NetworkEntry> networkList = new ArrayList<NetworkEntry>();
synchronized void cleanNetworkList() {
long expiredTime = System.currentTimeMillis() - EXPIRE_TIME;
for (Iterator<NetworkEntry> it = networkList.iterator(); it.hasNext();) {
NetworkEntry e = it.next();
if (e.hasExpired(expiredTime)) {
it.remove();
}
}
}
@Override
public List<String> getNetworks() throws Exception {
cleanNetworkList();
List<String> networks = new ArrayList<String>();
for (NetworkEntry e : networkList) {
networks.add(e.networkName);
networks.add(e.masterUrl);
}
return networks;
}
@Override
public void registerNetwork(String networkName, String masterUrl)
throws Exception {
cleanNetworkList();
NetworkEntry entry = new NetworkEntry(networkName, masterUrl);
entry.register(System.currentTimeMillis());
networkList.remove(entry);
networkList.add(entry);
}
}
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