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NetworkConfigurationImpl.java
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NetworkConfigurationImpl.java
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package dk.alexandra.fresco.framework.configuration;
import dk.alexandra.fresco.framework.Party;
import dk.alexandra.fresco.framework.util.Pair;
import dk.alexandra.fresco.framework.util.ValidationUtils;
import java.util.HashSet;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
public class NetworkConfigurationImpl implements NetworkConfiguration {
private final int myId;
private final Map<Integer, Party> parties;
public NetworkConfigurationImpl(int myId, Map<Integer, Party> parties) {
// Validation
Objects.requireNonNull(parties);
checkAddressesUnique(parties);
ValidationUtils.assertValidId(myId);
if (parties.get(myId) == null) {
throw new RuntimeException(String.format("myId %d must be in the parties map: %s", myId, parties));
}
// Set fields
this.myId = myId;
this.parties = parties;
}
@Override
public Party getParty(int id) {
ValidationUtils.assertValidId(id);
return parties.get(id);
}
@Override
public int getMyId() {
return myId;
}
@Override
public Party getMe() {
return getParty(getMyId());
}
@Override
public int noOfParties() {
return parties.size();
}
@Override
public String toString() {
return "NetworkConfigurationImpl [myId=" + myId + ", parties="
+ parties + "]";
}
/**
* Verifies that all party addresses are unique.
*/
private static void checkAddressesUnique(Map<Integer, Party> parties) {
Set<Pair<String, String>> addresses = new HashSet<>();
for (Party party : parties.values()) {
addresses.add(new Pair<>(party.getHostname(), Integer.toString(party.getPort())));
}
if (addresses.size() != parties.size()) {
throw new IllegalArgumentException("Party addresses must be unique: " + parties);
}
}
}