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The official Couchbase JVM Core IO Library
// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) 2004 Brian Wellington ([email protected])
package com.couchbase.client.core.deps.org.xbill.DNS;
import java.io.IOException;
/**
* X25 - identifies the PSDN (Public Switched Data Network) address in the X.121 numbering plan
* associated with a name.
*
* @author Brian Wellington
* @see RFC 1183: New DNS RR Definitions
*/
public class X25Record extends Record {
private byte[] address;
X25Record() {}
private static byte[] checkAndConvertAddress(String address) {
int length = address.length();
byte[] out = new byte[length];
for (int i = 0; i < length; i++) {
char c = address.charAt(i);
if (!Character.isDigit(c)) {
return null;
}
out[i] = (byte) c;
}
return out;
}
/**
* Creates an X25 Record from the given data
*
* @param address The X.25 PSDN address.
* @throws IllegalArgumentException The address is not a valid PSDN address.
*/
public X25Record(Name name, int dclass, long ttl, String address) {
super(name, Type.X25, dclass, ttl);
this.address = checkAndConvertAddress(address);
if (this.address == null) {
throw new IllegalArgumentException("invalid PSDN address " + address);
}
}
@Override
protected void rrFromWire(DNSInput in) throws IOException {
address = in.readCountedString();
}
@Override
protected void rdataFromString(Tokenizer st, Name origin) throws IOException {
String addr = st.getString();
this.address = checkAndConvertAddress(addr);
if (this.address == null) {
throw st.exception("invalid PSDN address " + addr);
}
}
/** Returns the X.25 PSDN address. */
public String getAddress() {
return byteArrayToString(address, false);
}
@Override
protected void rrToWire(DNSOutput out, Compression c, boolean canonical) {
out.writeCountedString(address);
}
@Override
protected String rrToString() {
return byteArrayToString(address, true);
}
}