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Elasticsearch subproject :server
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.common.transport;
import org.elasticsearch.Version;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.network.NetworkAddress;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
/**
* A transport address used for IP socket address (wraps {@link java.net.InetSocketAddress}).
*/
public final class InetSocketTransportAddress implements TransportAddress {
public static final Version V_5_0_3_UNRELEASED = Version.fromId(5000399);
public static final short TYPE_ID = 1;
private final InetSocketAddress address;
public InetSocketTransportAddress(InetAddress address, int port) {
this(new InetSocketAddress(address, port));
}
public InetSocketTransportAddress(InetSocketAddress address) {
if (address == null) {
throw new IllegalArgumentException("InetSocketAddress must not be null");
}
if (address.getAddress() == null) {
throw new IllegalArgumentException("Address must be resolved but wasn't - InetSocketAddress#getAddress() returned null");
}
this.address = address;
}
/**
* Read from a stream.
*/
public InetSocketTransportAddress(StreamInput in) throws IOException {
this(in, null);
}
/**
* Read from a stream and use the {@code hostString} when creating the InetAddress if the input comes from a version prior
* {@link #V_5_0_3_UNRELEASED} as the hostString was not serialized
*/
public InetSocketTransportAddress(StreamInput in, String hostString) throws IOException {
final int len = in.readByte();
final byte[] a = new byte[len]; // 4 bytes (IPv4) or 16 bytes (IPv6)
in.readFully(a);
final InetAddress inetAddress;
if (in.getVersion().onOrAfter(V_5_0_3_UNRELEASED)) {
String host = in.readString();
inetAddress = InetAddress.getByAddress(host, a); // the host string was serialized so we can ignore the passed in value
} else {
// prior to this version, we did not serialize the host string so we used the passed in value
inetAddress = InetAddress.getByAddress(hostString, a);
}
int port = in.readInt();
this.address = new InetSocketAddress(inetAddress, port);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
byte[] bytes = address().getAddress().getAddress(); // 4 bytes (IPv4) or 16 bytes (IPv6)
out.writeByte((byte) bytes.length); // 1 byte
out.write(bytes, 0, bytes.length);
if (out.getVersion().onOrAfter(V_5_0_3_UNRELEASED)) {
out.writeString(address.getHostString());
}
// don't serialize scope ids over the network!!!!
// these only make sense with respect to the local machine, and will only formulate
// the address incorrectly remotely.
out.writeInt(address.getPort());
}
@Override
public short uniqueAddressTypeId() {
return TYPE_ID;
}
@Override
public boolean sameHost(TransportAddress other) {
return other instanceof InetSocketTransportAddress &&
address.getAddress().equals(((InetSocketTransportAddress) other).address.getAddress());
}
@Override
public boolean isLoopbackOrLinkLocalAddress() {
return address.getAddress().isLinkLocalAddress() || address.getAddress().isLoopbackAddress();
}
@Override
public String getHost() {
return address.getHostString(); // just delegate no resolving done by getHostString
}
@Override
public String getAddress() {
return NetworkAddress.format(address.getAddress());
}
@Override
public int getPort() {
return address.getPort();
}
public InetSocketAddress address() {
return this.address;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
InetSocketTransportAddress address1 = (InetSocketTransportAddress) o;
return address.equals(address1.address);
}
@Override
public int hashCode() {
return address != null ? address.hashCode() : 0;
}
@Override
public String toString() {
return NetworkAddress.format(address);
}
}