![](/img/trans.png)
[英]Annotate StatelessBean with @Depends to HornetQ-JMS Queue
[英]Checking if a queue exists in HornetQ via JMS API
我想检查HornetQ中是否存在jms队列。 我正在使用jms管理api:
public boolean queueExists(String queueName) throws Exception
{
final Queue managementQueue = HornetQJMSClient.createQueue("hornetq.management");
Connection connection = jmsConnectionFactory.createConnection();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
QueueRequestor requestor = new QueueRequestor((QueueSession) session, managementQueue);
connection.start();
Message message = session.createMessage();
JMSManagementHelper.putAttribute(message, queueName, ???);
Message reply = requestor.request(message);
Object result = JMSManagementHelper.getResult(reply);
//???
}
我的问题是为此目的应在请求消息中放入哪个属性? 在哪里可以找到所有可能的属性(文档或类的常量字段)?
JMSManagementHelper.putAttribute(message, queueName, ???);
我应该如何处理回复消息的结果以了解请求结果?
Message reply = requestor.request(message);
Object result = JMSManagementHelper.getResult(reply);
//???
我正在使用HornetQ 2.4.1.Final。
必须使用JMSManagementHelper.putOperationInvocation()代替JMSManagementHelper.putAttribute(),资源名称为:jms,操作参数为getQueueNames。 该操作的结果是一个Object [],其中包含所有jms队列名称。
public boolean queueExists(String queueName) throws Exception
{
final Queue managementQueue = HornetQJMSClient.createQueue("hornetq.management");
Connection connection = jmsConnectionFactory.createConnection();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
QueueRequestor requestor = new QueueRequestor((QueueSession) session, managementQueue);
connection.start();
Message message = session.createMessage();
JMSManagementHelper.putOperationInvocation(message,
org.hornetq.api.core.management.ResourceNames.JMS_SERVER, "getQueueNames");
Message reply = requestor.request(message);
Object result = JMSManagementHelper.getResult(reply);
Object[] results = (Object[])result;
for (int i = 0; i < results.length; i++)
{
if (queueName.equals(((String)results[i])))
return true;
}
return false;
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.