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Java client for the AOServ Platform.
/*
* aoserv-client - Java client for the AOServ platform.
* Copyright (C) 2001-2013, 2014, 2016 AO Industries, Inc.
* [email protected]
* 7262 Bull Pen Cir
* Mobile, AL 36695
*
* This file is part of aoserv-client.
*
* aoserv-client is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* aoserv-client is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with aoserv-client. If not, see .
*/
package com.aoindustries.aoserv.client;
import com.aoindustries.io.CompressedDataInputStream;
import com.aoindustries.io.CompressedDataOutputStream;
import java.io.IOException;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Collections;
import java.util.List;
/**
* A DNSRecord
is one line of a DNSZone
* (name server zone file).
*
* @see DNSZone
*
* @author AO Industries, Inc.
*/
final public class DNSRecord extends CachedObjectIntegerKey implements Removable {
static final int
COLUMN_PKEY=0,
COLUMN_ZONE=1
;
static final String COLUMN_ZONE_name = "zone";
static final String COLUMN_DOMAIN_name = "domain";
static final String COLUMN_TYPE_name = "type";
static final String COLUMN_PRIORITY_name = "priority";
static final String COLUMN_WEIGHT_name = "weight";
static final String COLUMN_DESTINATION_name = "destination";
public static final int NO_PRIORITY = -1;
public static final int NO_WEIGHT = -1;
public static final int NO_PORT = -1;
public static final int NO_TTL = -1;
String
zone,
domain,
type
;
int priority;
int weight;
int port;
String destination;
int dhcpAddress;
int ttl;
@Override
Object getColumnImpl(int i) {
switch(i) {
case COLUMN_PKEY: return pkey;
case COLUMN_ZONE: return zone;
case 2: return domain;
case 3: return type;
case 4: return priority==NO_PRIORITY ? null : priority;
case 5: return weight==NO_WEIGHT ? null : weight;
case 6: return port==NO_PORT ? null : port;
case 7: return destination;
case 8: return dhcpAddress==-1 ? null : dhcpAddress;
case 9: return ttl==NO_TTL ? null : ttl;
default: throw new IllegalArgumentException("Invalid index: "+i);
}
}
public String getDestination() {
return destination;
}
public IPAddress getDHCPAddress() throws SQLException, IOException {
if(dhcpAddress==-1) return null;
IPAddress ia=table.connector.getIpAddresses().get(dhcpAddress);
if(ia==null) throw new SQLException("Unable to find IPAddress: "+dhcpAddress);
return ia;
}
public int getTTL() {
return ttl;
}
public String getDomain() {
return domain;
}
/**
* Gets the domain, but in fully-qualified, absolute path (with trailing period).
*/
public String getAbsoluteDomain() {
if(domain.equals("@")) return zone;
if(domain.endsWith(".")) return domain;
return domain+'.'+zone;
}
/**
* Checks if this record conflicts with the provided record, meaning they may not both exist
* in a zone file at the same time. The current conflicts checked are:
*
* - CNAME must exist by itself, and only one CNAME maximum, per domain
*
*
* @return true
if there is a conflict, false
if the records may coexist.
*/
public boolean hasConflict(DNSRecord other) {
String domain1 = getAbsoluteDomain();
String domain2 = other.getAbsoluteDomain();
// Look for CNAME conflict
if(domain1.equals(domain2)) {
// If either (or both) are CNAME, there is a conflict
if(
type.equals(DNSType.CNAME)
|| other.type.equals(DNSType.CNAME)
) {
return true;
}
}
return false;
}
public int getPriority() {
return priority;
}
public int getWeight() {
return weight;
}
public int getPort() {
return port;
}
@Override
public SchemaTable.TableID getTableID() {
return SchemaTable.TableID.DNS_RECORDS;
}
public DNSType getType() throws SQLException, IOException {
DNSType obj=table.connector.getDnsTypes().get(type);
if(obj==null) throw new SQLException("Unable to find DNSType: "+type);
return obj;
}
public DNSZone getZone() throws SQLException, IOException {
DNSZone obj=table.connector.getDnsZones().get(zone);
if(obj==null) throw new SQLException("Unable to find DNSZone: "+zone);
return obj;
}
@Override
public void init(ResultSet result) throws SQLException {
int pos = 1;
pkey = result.getInt(pos++);
zone = result.getString(pos++);
domain = result.getString(pos++);
type = result.getString(pos++);
priority = result.getInt(pos++);
if(result.wasNull()) priority = NO_PRIORITY;
weight = result.getInt(pos++);
if(result.wasNull()) weight = NO_WEIGHT;
port = result.getInt(pos++);
if(result.wasNull()) port = NO_PORT;
destination = result.getString(pos++);
dhcpAddress = result.getInt(pos++);
if(result.wasNull()) dhcpAddress = -1;
ttl = result.getInt(pos++);
if(result.wasNull()) ttl=NO_TTL;
}
@Override
public void read(CompressedDataInputStream in) throws IOException {
pkey = in.readCompressedInt();
zone = in.readUTF().intern();
domain = in.readUTF().intern();
type = in.readUTF().intern();
priority = in.readCompressedInt();
weight = in.readCompressedInt();
port = in.readCompressedInt();
destination = in.readUTF().intern();
dhcpAddress = in.readCompressedInt();
ttl = in.readCompressedInt();
}
@Override
public List getCannotRemoveReasons() {
return Collections.emptyList();
}
@Override
public void remove() throws IOException, SQLException {
table.connector.requestUpdateIL(true, AOServProtocol.CommandID.REMOVE, SchemaTable.TableID.DNS_RECORDS, pkey);
}
@Override
String toStringImpl() {
StringBuilder SB=new StringBuilder();
SB.append(zone).append(": ").append(domain);
if(ttl != NO_TTL) SB.append(' ').append(ttl);
SB.append(" IN ").append(type);
if(priority != NO_PRIORITY) SB.append(' ').append(priority);
if(weight != NO_WEIGHT) SB.append(' ').append(weight);
if(port != NO_PORT) SB.append(' ').append(port);
SB.append(' ').append(destination);
return SB.toString();
}
@Override
public void write(CompressedDataOutputStream out, AOServProtocol.Version version) throws IOException {
out.writeCompressedInt(pkey);
out.writeUTF(zone);
out.writeUTF(domain);
out.writeUTF(type);
out.writeCompressedInt(priority);
if(version.compareTo(AOServProtocol.Version.VERSION_1_72)>=0) {
out.writeCompressedInt(weight);
out.writeCompressedInt(port);
}
out.writeUTF(destination);
out.writeCompressedInt(dhcpAddress);
if(version.compareTo(AOServProtocol.Version.VERSION_1_0_A_127)>=0) {
out.writeCompressedInt(ttl);
}
}
}
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