2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.openflowplugin.extension.vendor.nicira.convertor;
10 import com.google.common.base.Splitter;
11 import com.google.common.collect.Lists;
12 import java.util.List;
13 import java.util.ListIterator;
14 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
17 * IP conversion utilities.
21 public final class IpConverter {
22 private IpConverter() {
25 public static long ipv4AddressToLong(Ipv4Address ipv4Address) {
27 Iterable<String> splitted = Splitter.on('.')
30 .split(ipv4Address.getValue());
32 List<String> splittedAddress = Lists.newArrayList(splitted.iterator());
33 int maxIndex = splittedAddress.size() - 1;
34 ListIterator<String> listIter = splittedAddress.listIterator();
35 while (listIter.hasNext()) {
36 String current = listIter.next();
37 int index = splittedAddress.indexOf(current);
38 result |= Long.parseLong(current) << (maxIndex - index) * 8;
40 return result & 0xFFFFFFFF;
43 public static Ipv4Address longToIpv4Address(long ip) {
45 StringBuilder sb = new StringBuilder(15);
46 for (int i = 0; i < 4; i++) {
47 sb.insert(0, Long.toString(tmpIp & 0xff));
53 return new Ipv4Address(sb.toString());