/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2002, 2011 Oracle and/or its affiliates. All rights reserved.
*
*/
package com.sleepycat.je.rep.elections;
import com.sleepycat.je.rep.elections.Protocol.StringValue;
import com.sleepycat.je.rep.elections.Protocol.Value;
import com.sleepycat.je.rep.elections.Protocol.ValueParser;
import com.sleepycat.je.rep.impl.node.NameIdPair;
/**
* Class represents the identity of a Master as a subclass of a StringValue
* that can be used during the election protocol.
*/
public class MasterValue extends StringValue {
private static final String DELIMITER = "$$$";
private static final String DELIMITER_REGEXP = "\\$\\$\\$";
private final String hostname;
private final int port;
private final NameIdPair nameIdPair;
public MasterValue(String masterHostname,
int masterPort,
NameIdPair masterNameIdPair) {
super(masterHostname + DELIMITER +
masterPort + DELIMITER +
masterNameIdPair.getName() + DELIMITER +
masterNameIdPair.getId());
this.hostname = masterHostname;
this.port = masterPort;
this.nameIdPair = masterNameIdPair;
}
public MasterValue(String valueString) {
super(valueString);
String[] tokens = valueString.split(DELIMITER_REGEXP);
hostname = tokens[0];
port = Integer.parseInt(tokens[1]);
nameIdPair = new NameIdPair(tokens[2], Integer.parseInt(tokens[3]));
}
public String getHostName() {
return hostname;
}
public int getPort() {
return port;
}
public String getNodeName() {
return nameIdPair.getName();
}
public NameIdPair getNameId() {
return nameIdPair;
}
/**
* Returns a parser that can convert a wire format value into a MasterValue
*
* @return the value parser
*/
static public ValueParser getParser() {
return masterValueParser;
}
private static final ValueParser masterValueParser = new ValueParser() {
public Value parse(String wireFormat) {
return ((wireFormat == null) || "".equals(wireFormat)) ?
null :
new MasterValue(wireFormat);
}
};
@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result
+ ((hostname == null) ? 0 : hostname.hashCode());
result = prime * result + nameIdPair.hashCode();
result = prime * result + port;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!super.equals(obj)) {
return false;
}
if (!(obj instanceof MasterValue)) {
return false;
}
final MasterValue other = (MasterValue) obj;
if (hostname == null) {
if (other.hostname != null) {
return false;
}
} else if (!hostname.equals(other.hostname)) {
return false;
}
if (!nameIdPair.equals(other.nameIdPair)) {
return false;
}
if (port != other.port) {
return false;
}
return true;
}
}