/**
* 判断两个node对象中host和port是否相等
*
* @author ningyu
* @date 2013-1-26 下午3:46:50
* @param anObject
* @return
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object anObject) {
if (this == anObject) {
return true;
}
if (anObject instanceof Node) {
Node node = (Node) anObject;
if (this.getHost().equals(node.getHost()) && (this.getPort() == node.getPort())) {
return true;
}
}
return false;
}
/**
* 执行redis ping操作
*
* @author ningyu
* @date 2013-1-26 下午3:51:07
* @param node
* @return
* @see
*/
public static boolean pingNode(Node node) {
Jedis j = null;
try {
j = new Jedis(node.getHost(), node.getPort());
String re = j.ping();
return re.equals("PONG");
} catch (Exception e) {
return false;
} finally {
if (j != null) {
j.disconnect();
}
}
}
/**
* 将字符串描述转换成node对象
*
* @author ningyu
* @date 2013-1-26 下午3:47:28
* @param msg
* @return
* @see
*/
public static Node unmarshal(String msg) {
Node head = null;
Node node = null;
String str = msg.substring(1, msg.length() - 1);
String[] nodes = str.split("\\},\\{");
for (String s : nodes) {
String[] ps = s.split(",");
Node cur = new Node();
cur.setHost(ps[0].split(":")[1]);
cur.setPort(Integer.valueOf(ps[1].split(":")[1]));
String password = ps[2].split(":")[1];
cur.setPassword(password.equals("null") ? null : password);
cur.setWeight(Integer.valueOf(ps[3].split(":")[1]));
String name = ps[4].split(":")[1];
cur.setName(name.equals("null") ? null : name);
String timeout = ps[5].split(":")[1];
if (timeout.endsWith("}")) {
timeout = timeout.substring(0, timeout.length() - 1);
}
cur.setTimeout(Integer.valueOf(timeout));
if (node == null) {
node = cur;
head = node;
} else {
node.setNext(cur);
cur.setPrevious(node);
node = cur;
}
}
return head;
}
/**
* 返回json字符串
*
* @author ningyu
* @date 2013-1-26 下午3:47:45
* @param node
* @return
* @see
*/
private static String passJson(Node node) {
StringBuilder sb = new StringBuilder();
if (node != null) {
sb.append("{");
sb.append("host:" + node.getHost()).append(", ");
sb.append("port:" + node.getPort()).append(", ");
sb.append("password:"******", ");
sb.append("weight:" + node.getWeight()).append(", ");
sb.append("name:" + node.getName()).append(", ");
sb.append("timeout:" + node.getTimeout());
sb.append("}");
node = node.getNext();
if (node != null) {
sb.append(",");
sb.append(passJson(node));
}
}
return sb.toString();
}
