/
NetworkParams.java
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/
NetworkParams.java
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package snowblossom;
import com.google.common.collect.ImmutableMap;
import java.util.Map;
import java.util.TreeMap;
import java.util.List;
import com.google.protobuf.ByteString;
import java.util.logging.Logger;
import java.util.logging.Level;
import java.math.BigInteger;
public abstract class NetworkParams
{
private static final Logger logger = Logger.getLogger("snowblossom.blockchain");
protected final ImmutableMap<Integer, SnowFieldInfo> snow_fields;
public NetworkParams()
{
snow_fields = ImmutableMap.copyOf(genSnowFields());
}
protected abstract Map<Integer, SnowFieldInfo> genSnowFields();
public SnowFieldInfo getSnowFieldInfo(int field) {return snow_fields.get(field); }
public abstract String getNetworkName();
public abstract String getAddressPrefix();
public BigInteger getMaxTarget()
{
return BlockchainUtil.getTargetForDiff(24);
}
/** Get the weighting to use for running averages, in parts per 1000 */
public long getAvgWeight() { return 10L; }
public long getBlockTimeTarget() { return 600L * 1000L; } //10 minutes
public ByteString getBlockZeroRemark() { return ByteString.copyFrom(new String("it begins").getBytes()); }
public int getMaxBlockSize() { return 1024 * 1024 * 2; }
/**
* Use NTP
*/
public long getMaxClockSkewMs() { return 50; }
public abstract List<String> getSeedNodes();
public int getDefaultPort() { return 2338; }
/**
* Returns a mapping of field seeds, which also
* should be the directory fields are stored in for miners
* mapping to the field number. This allows miners to see which fields
* they have locally and support by looking for directories of those names.
*/
public Map<Integer, String> getFieldSeeds()
{
Map<Integer, String> field_seed_map = new TreeMap<Integer, String>();
for(int field : snow_fields.keySet())
{
String name = getNetworkName() + "." + field;
field_seed_map.put(field, name);
}
return field_seed_map;
}
public static NetworkParams loadFromConfig(Config config)
{
if (config.isSet("network"))
{
String network = config.get("network");
if (network.equals("snowblossom"))
{
return new NetworkParamsProd();
}
else if (network.equals("teapot"))
{
logger.info("Using network teapot - testnet");
return new NetworkParamsTestnet();
}
else if (network.equals("spoon"))
{
logger.info("Using network spoon - regtest");
return new NetworkParamsRegtest();
}
else
{
logger.log(Level.SEVERE, String.format("Unknown network: %s", network));
return null;
}
}
else
{
return new NetworkParamsProd();
}
}
}