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The core module of Pcap4J.
/*_##########################################################################
_##
_## Copyright (C) 2012-2014 Pcap4J.org
_##
_##########################################################################
*/
package org.pcap4j.packet;
import java.util.Arrays;
import org.pcap4j.packet.IpV6ExtRoutingPacket.IpV6RoutingData;
import org.pcap4j.util.ByteArrays;
/**
* @author Kaito Yamada
* @since pcap4j 0.9.11
*/
public final class UnknownIpV6RoutingData implements IpV6RoutingData {
/** */
private static final long serialVersionUID = -6359533865311266265L;
private final byte[] rawData;
/**
* A static factory method. This method validates the arguments by {@link
* ByteArrays#validateBounds(byte[], int, int)}, which may throw exceptions undocumented here.
*
* @param rawData rawData
* @param offset offset
* @param length length
* @return a new UnknownIpV6RoutingData object.
* @throws IllegalRawDataException if parsing the raw data fails.
*/
public static UnknownIpV6RoutingData newInstance(byte[] rawData, int offset, int length)
throws IllegalRawDataException {
ByteArrays.validateBounds(rawData, offset, length);
return new UnknownIpV6RoutingData(rawData, offset, length);
}
private UnknownIpV6RoutingData(byte[] rawData, int offset, int length)
throws IllegalRawDataException {
if (length < 4) {
StringBuilder sb = new StringBuilder(100);
sb.append("rawData length must be more than 3. rawData: ")
.append(ByteArrays.toHexString(rawData, " "))
.append(", offset: ")
.append(offset)
.append(", length: ")
.append(length);
throw new IllegalRawDataException(sb.toString());
}
if (((length + 4) % 8) != 0) {
StringBuilder sb = new StringBuilder(100);
sb.append("(length + 4) % 8 must be 0. rawData: ")
.append(ByteArrays.toHexString(rawData, " "))
.append(", offset: ")
.append(offset)
.append(", length: ")
.append(length);
throw new IllegalRawDataException(sb.toString());
}
this.rawData = new byte[length];
System.arraycopy(rawData, offset, this.rawData, 0, length);
}
@Override
public int length() {
return rawData.length;
}
@Override
public byte[] getRawData() {
byte[] copy = new byte[rawData.length];
System.arraycopy(rawData, 0, copy, 0, rawData.length);
return copy;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("[data: ").append(ByteArrays.toHexString(rawData, " ")).append("]");
return sb.toString();
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!this.getClass().isInstance(obj)) {
return false;
}
UnknownIpV6RoutingData other = (UnknownIpV6RoutingData) obj;
return Arrays.equals(rawData, other.rawData);
}
@Override
public int hashCode() {
return Arrays.hashCode(rawData);
}
}
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