inet.ipaddr.mac.MACAddressNetwork Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of ipaddress Show documentation
Show all versions of ipaddress Show documentation
Library for handling IP addresses, both IPv4 and IPv6
/*
* Copyright 2017 Sean C Foley
*
* 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
* or at
* https://github.com/seancfoley/IPAddress/blob/master/LICENSE
*
* 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 inet.ipaddr.mac;
import inet.ipaddr.Address.SegmentValueProvider;
import inet.ipaddr.AddressNetwork;
import inet.ipaddr.HostIdentifierString;
import inet.ipaddr.PrefixLenException;
import inet.ipaddr.format.AddressCreator;
public class MACAddressNetwork extends AddressNetwork {
private static final long serialVersionUID = 4L;
private static PrefixConfiguration defaultPrefixConfiguration = AddressNetwork.getDefaultPrefixConfiguration();
private static final MACAddressSegment EMPTY_SEGMENTS[] = {};
public class MACAddressCreator extends AddressCreator implements AddressSegmentCreator {
private static final long serialVersionUID = 4L;
private transient MACAddressSegment ALL_RANGE_SEGMENT;
private transient MACAddressSegment segmentCache[];
@Override
public void clearCaches() {
segmentCache = null;
}
public MACAddressNetwork getNetwork() {
return MACAddressNetwork.this;
}
@Override
public MACAddressSegment[] createSegmentArray(int length) {
if(length == 0) {
return EMPTY_SEGMENTS;
}
return new MACAddressSegment[length];
}
@Override
public MACAddressSegment createSegment(int value) {
if(value >= 0 && value <= MACAddress.MAX_VALUE_PER_SEGMENT) {
MACAddressSegment result, cache[] = segmentCache;
if(cache == null) {
segmentCache = cache = new MACAddressSegment[MACAddress.MAX_VALUE_PER_SEGMENT + 1];
cache[value] = result = new MACAddressSegment(value);
} else {
result = cache[value];
if(result == null) {
cache[value] = result = new MACAddressSegment(value);
}
}
return result;
}
return new MACAddressSegment(value);
}
@Override
public MACAddressSegment createSegment(int value, Integer segmentPrefixLength) {
//On ipvx side we have prefix as part of segment, but not here
//On ipvx side, the address creator for sections defers the prefix handling to the segments creator,
//which defers the prefix handling to the segment constructor, and then the prefix is applied in the super constructor.
//Here, we do the same, but when the prefix gets to here, we cannot pass to the segment, so we apply the prefix here
//But this also gives more caching opportunities
if(segmentPrefixLength != null) {
if(segmentPrefixLength < 0) {
throw new PrefixLenException(segmentPrefixLength);
}
if(segmentPrefixLength > MACAddress.EXTENDED_UNIQUE_IDENTIFIER_64_BIT_COUNT) {
throw new PrefixLenException(segmentPrefixLength);
}
if(getNetwork().getPrefixConfiguration().allPrefixedAddressesAreSubnets()) {
if(segmentPrefixLength == 0) {
MACAddressSegment result = ALL_RANGE_SEGMENT;
if(result == null) {
ALL_RANGE_SEGMENT = result = new MACAddressSegment(0, MACAddress.MAX_VALUE_PER_SEGMENT);
}
return result;
}
int mask = ~0 << (MACAddress.BITS_PER_SEGMENT - segmentPrefixLength);
int newLower = value & mask;
int newUpper = value | ~mask;
return createRangeSegment(newLower, newUpper);
}
}
return createSegment(value);
}
//different name to avoid confusion with createSegment(int, Integer)
public MACAddressSegment createRangeSegment(int lower, int upper) {
if(lower != upper) {
if(lower == 0 && upper == MACAddress.MAX_VALUE_PER_SEGMENT) {
MACAddressSegment result = ALL_RANGE_SEGMENT;
if(result == null) {
ALL_RANGE_SEGMENT = result = new MACAddressSegment(0, upper);
}
return result;
}
return new MACAddressSegment(lower, upper);
}
return createSegment(lower);
}
@Override
public MACAddressSegment createSegment(int lower, int upper, Integer segmentPrefixLength) {
if(segmentPrefixLength == null) {
return createRangeSegment(lower, upper);
}
if(segmentPrefixLength < 0) {
throw new PrefixLenException(segmentPrefixLength);
}
if(segmentPrefixLength > MACAddress.EXTENDED_UNIQUE_IDENTIFIER_64_BIT_COUNT) {
throw new PrefixLenException(segmentPrefixLength);
}
if(getNetwork().getPrefixConfiguration().allPrefixedAddressesAreSubnets()) {
if(segmentPrefixLength == 0) {
MACAddressSegment result = ALL_RANGE_SEGMENT;
if(result == null) {
ALL_RANGE_SEGMENT = result = new MACAddressSegment(0, MACAddress.MAX_VALUE_PER_SEGMENT);
}
return result;
}
int max = MACAddress.MAX_VALUE_PER_SEGMENT;
int mask = (~0 << (MACAddress.BITS_PER_SEGMENT - segmentPrefixLength)) & max;
int newLower = lower & mask;
int newUpper = upper | (~mask & max);
return createRangeSegment(newLower, newUpper);
}
return createRangeSegment(lower, upper);
}
@Override
protected MACAddressSegment createSegmentInternal(int value, Integer segmentPrefixLength, CharSequence addressStr,
int originalVal, boolean isStandardString, int lowerStringStartIndex, int lowerStringEndIndex) {
MACAddressSegment segment = createSegment(value, segmentPrefixLength);
segment.setString(addressStr, isStandardString, lowerStringStartIndex, lowerStringEndIndex, originalVal);
return segment;
}
@Override
protected MACAddressSegment createSegmentInternal(int lower, int upper, Integer segmentPrefixLength,
CharSequence addressStr, int originalLower, int originalUpper, boolean isStandardString,
boolean isStandardRangeString, int lowerStringStartIndex, int lowerStringEndIndex,
int upperStringEndIndex) {
MACAddressSegment segment = createSegment(lower, upper, segmentPrefixLength);
segment.setString(addressStr, isStandardRangeString, lowerStringStartIndex, upperStringEndIndex, originalLower, originalUpper);
return segment;
}
MACAddressSection createSection(long bytes, int startIndex, boolean extended, Integer prefixLength) {
MACAddressSection result = new MACAddressSection(bytes, startIndex, extended);
if(prefixLength != null) {
result = result.applyPrefixLength(prefixLength);
}
return result;
}
MACAddressSection createSection(byte bytes[], int startIndex, boolean extended, Integer prefixLength) {
MACAddressSection result = new MACAddressSection(bytes, startIndex, extended);
if(prefixLength != null) {
result = result.applyPrefixLength(prefixLength);
}
return result;
}
MACAddressSection createSection(byte bytes[], int startIndex, int segmentCount, boolean extended, Integer prefixLength) {
MACAddressSection result = new MACAddressSection(bytes, 0, bytes.length, segmentCount, startIndex, extended, true);
if(prefixLength != null) {
result = result.applyPrefixLength(prefixLength);
}
return result;
}
MACAddressSection createSection(SegmentValueProvider lowerValueProvider, SegmentValueProvider upperValueProvider, int startIndex, boolean extended, Integer prefixLength) {
MACAddressSection result = new MACAddressSection(lowerValueProvider, upperValueProvider, startIndex, extended);
if(prefixLength != null) {
result = result.applyPrefixLength(prefixLength);
}
return result;
}
@Override
protected MACAddressSection createSectionInternal(MACAddressSegment[] segments) {
return new MACAddressSection(false, segments, 0, segments.length > MACAddress.EXTENDED_UNIQUE_IDENTIFIER_48_SEGMENT_COUNT);
}
@Override
protected MACAddressSection createPrefixedSectionInternal(MACAddressSegment[] segments, Integer prefixLength, boolean singleOnly) {
return createPrefixedSectionInternal(segments, prefixLength);
}
@Override
protected MACAddressSection createPrefixedSectionInternal(MACAddressSegment[] segments, Integer prefixLength) {
MACAddressSection result = new MACAddressSection(false, segments, 0, segments.length > MACAddress.EXTENDED_UNIQUE_IDENTIFIER_48_SEGMENT_COUNT);
if(prefixLength != null) {
result = result.applyPrefixLength(prefixLength);
}
return result;
}
protected MACAddressSection createSectionInternal(MACAddressSegment[] segments, boolean extended) {
return new MACAddressSection(false, segments, 0, extended);
}
@Override
protected MACAddressSection createSectionInternal(MACAddressSegment[] segments, int startIndex, boolean extended) {
return new MACAddressSection(false, segments, startIndex, extended);
}
MACAddressSection createSection(MACAddressSegment[] segments, boolean extended, Integer prefixLength) {
MACAddressSection result = new MACAddressSection(segments, 0, extended);
if(prefixLength != null) {
result = result.applyPrefixLength(prefixLength);
}
return result;
}
@Override
protected MACAddress createAddressInternal(byte[] bytes, CharSequence zone) {
MACAddressSection section = new MACAddressSection(bytes, 0, bytes.length > MACAddress.EXTENDED_UNIQUE_IDENTIFIER_48_SEGMENT_COUNT, false);
return createAddress(section);
}
@Override
protected MACAddress createAddressInternal(MACAddressSegment[] segments) {
return createAddress(createSectionInternal(segments));
}
@Override
protected MACAddress createAddressInternal(MACAddressSegment segments[], Integer prefix) {
return createAddress(createPrefixedSectionInternal(segments, prefix));
}
@Override
protected MACAddress createAddressInternal(MACAddressSegment[] segments, Integer prefix, boolean singleOnly) {
return createAddressInternal(segments, prefix);
}
@Override
protected MACAddress createAddressInternal(MACAddressSection section, HostIdentifierString from) {
MACAddress result = createAddress(section);
result.cache(from);
return result;
}
@Override
protected MACAddress createAddressInternal(MACAddressSection section, CharSequence zone, HostIdentifierString from) {
MACAddress result = createAddress(section);
result.cache(from);
return result;
}
@Override
public MACAddress createAddress(MACAddressSection section) {
return new MACAddress(section);
}
}
protected MACAddressNetwork.MACAddressCreator createAddressCreator() {
return new MACAddressCreator();
}
@Override
public MACAddressNetwork.MACAddressCreator getAddressCreator() {
return creator;
}
private MACAddressNetwork.MACAddressCreator creator;
public MACAddressNetwork() {
this.creator = createAddressCreator();
}
@Override
public PrefixConfiguration getPrefixConfiguration() {
return defaultPrefixConfiguration;
}
/**
* Sets the default prefix configuration used by this network.
*
* @see #getDefaultPrefixConfiguration()
* @see #getPrefixConfiguration()
* @see PrefixConfiguration
*/
public static void setDefaultPrefixConfiguration(PrefixConfiguration config) {
defaultPrefixConfiguration = config;
}
/**
* Gets the default prefix configuration used by this network.
*
* @see AddressNetwork#getDefaultPrefixConfiguration()
* @see PrefixConfiguration
*/
public static PrefixConfiguration getDefaultPrefixConfiguration() {
return defaultPrefixConfiguration;
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy