com.hazelcast.client.util.AddressHelper Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.client.util;
import com.hazelcast.logging.Logger;
import com.hazelcast.util.AddressUtil;
import com.hazelcast.util.AddressUtil.AddressHolder;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import java.util.Collection;
import java.util.LinkedList;
import static com.hazelcast.util.AddressUtil.getPossibleInetAddressesFor;
/**
* This is a client side utility class for working with addresses and cluster connections
*/
public final class AddressHelper {
private static final int MAX_PORT_TRIES = 3;
private static final int INITIAL_FIRST_PORT = 5701;
private AddressHelper() {
}
public static Collection getSocketAddresses(String address) {
final AddressHolder addressHolder = AddressUtil.getAddressHolder(address, -1);
final String scopedAddress = addressHolder.getScopeId() != null
? addressHolder.getAddress() + '%' + addressHolder.getScopeId()
: addressHolder.getAddress();
int port = addressHolder.getPort();
int maxPortTryCount = 1;
if (port == -1) {
maxPortTryCount = MAX_PORT_TRIES;
}
return getPossibleSocketAddresses(port, scopedAddress, maxPortTryCount);
}
public static Collection getPossibleSocketAddresses(int port, String scopedAddress,
int portTryCount) {
InetAddress inetAddress = null;
try {
inetAddress = InetAddress.getByName(scopedAddress);
} catch (UnknownHostException ignored) {
Logger.getLogger(AddressHelper.class).finest("Address not available", ignored);
}
int possiblePort = port;
if (possiblePort == -1) {
possiblePort = INITIAL_FIRST_PORT;
}
final Collection socketAddresses = new LinkedList();
if (inetAddress == null) {
for (int i = 0; i < portTryCount; i++) {
socketAddresses.add(new InetSocketAddress(scopedAddress, possiblePort + i));
}
} else if (inetAddress instanceof Inet4Address) {
for (int i = 0; i < portTryCount; i++) {
socketAddresses.add(new InetSocketAddress(inetAddress, possiblePort + i));
}
} else if (inetAddress instanceof Inet6Address) {
final Collection addresses = getPossibleInetAddressesFor((Inet6Address) inetAddress);
for (Inet6Address inet6Address : addresses) {
for (int i = 0; i < portTryCount; i++) {
socketAddresses.add(new InetSocketAddress(inet6Address, possiblePort + i));
}
}
}
return socketAddresses;
}
}