org.elasticsearch.common.transport.TransportAddressSerializers Maven / Gradle / Ivy
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* the Apache License, Version 2.0 (the "License"); you may
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*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.common.transport;
import com.google.common.collect.ImmutableMap;
import org.elasticsearch.ElasticsearchIllegalStateException;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.logging.ESLogger;
import org.elasticsearch.common.logging.Loggers;
import java.io.IOException;
import java.lang.reflect.Constructor;
import static org.elasticsearch.common.collect.MapBuilder.newMapBuilder;
/**
* A global registry of all different types of {@link org.elasticsearch.common.transport.TransportAddress} allowing
* to perform serialization of them.
*
* By default, adds {@link org.elasticsearch.common.transport.InetSocketTransportAddress}.
*
*
*/
public abstract class TransportAddressSerializers {
private static final ESLogger logger = Loggers.getLogger(TransportAddressSerializers.class);
private static ImmutableMap> addressConstructors = ImmutableMap.of();
static {
try {
addAddressType(DummyTransportAddress.INSTANCE);
addAddressType(new InetSocketTransportAddress());
addAddressType(new LocalTransportAddress());
} catch (Exception e) {
logger.warn("Failed to add InetSocketTransportAddress", e);
}
}
public static synchronized void addAddressType(TransportAddress address) throws Exception {
if (addressConstructors.containsKey(address.uniqueAddressTypeId())) {
throw new ElasticsearchIllegalStateException("Address [" + address.uniqueAddressTypeId() + "] already bound");
}
Constructor constructor = address.getClass().getDeclaredConstructor();
constructor.setAccessible(true);
addressConstructors = newMapBuilder(addressConstructors).put(address.uniqueAddressTypeId(), constructor).immutableMap();
}
public static TransportAddress addressFromStream(StreamInput input) throws IOException {
short addressUniqueId = input.readShort();
Constructor constructor = addressConstructors.get(addressUniqueId);
if (constructor == null) {
throw new IOException("No transport address mapped to [" + addressUniqueId + "]");
}
TransportAddress address;
try {
address = constructor.newInstance();
} catch (Exception e) {
throw new IOException("Failed to create class with constructor [" + constructor + "]", e);
}
address.readFrom(input);
return address;
}
public static void addressToStream(StreamOutput out, TransportAddress address) throws IOException {
out.writeShort(address.uniqueAddressTypeId());
address.writeTo(out);
}
}