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The official Couchbase JVM Core IO Library
// SPDX-License-Identifier: BSD-3-Clause
// Implemented by Anthony Kirby ([email protected])
// based on SRVRecord.java Copyright (c) 1999-2004 Brian Wellington
package com.couchbase.client.core.deps.org.xbill.DNS;
import java.io.IOException;
/**
* Uniform Resource Identifier (URI) DNS Resource Record
*
* @author Anthony Kirby
* @see RFC 7553: The Uniform Resource Identifier
* (URI) DNS Resource Record
*/
public class URIRecord extends Record {
private int priority, weight;
private byte[] target;
URIRecord() {
target = new byte[] {};
}
/**
* Creates a URI Record from the given data
*
* @param priority The priority of this URI. Records with lower priority are preferred.
* @param weight The weight, used to select between records at the same priority.
* @param target The host/port running the service
*/
public URIRecord(Name name, int dclass, long ttl, int priority, int weight, String target) {
super(name, Type.URI, dclass, ttl);
this.priority = checkU16("priority", priority);
this.weight = checkU16("weight", weight);
try {
this.target = byteArrayFromString(target);
} catch (TextParseException e) {
throw new IllegalArgumentException(e.getMessage());
}
}
@Override
protected void rrFromWire(DNSInput in) throws IOException {
priority = in.readU16();
weight = in.readU16();
target = in.readByteArray();
}
@Override
protected void rdataFromString(Tokenizer st, Name origin) throws IOException {
priority = st.getUInt16();
weight = st.getUInt16();
try {
target = byteArrayFromString(st.getString());
} catch (TextParseException e) {
throw st.exception(e.getMessage());
}
}
/** Converts rdata to a String */
@Override
protected String rrToString() {
StringBuilder sb = new StringBuilder();
sb.append(priority).append(" ");
sb.append(weight).append(" ");
sb.append(byteArrayToString(target, true));
return sb.toString();
}
/** Returns the priority */
public int getPriority() {
return priority;
}
/** Returns the weight */
public int getWeight() {
return weight;
}
/** Returns the target URI */
public String getTarget() {
return byteArrayToString(target, false);
}
@Override
protected void rrToWire(DNSOutput out, Compression c, boolean canonical) {
out.writeU16(priority);
out.writeU16(weight);
out.writeByteArray(target);
}
}