/**
* Get full MBean name with given bean name, domain and session
*
* @param bean Name of bean. It can be NULL so that session#getBean() is returned
* @param domain Domain for bean
* @param session Current session
* @return Full qualified name of MBean
* @throws JMException Thrown when given MBean name is malformed
* @throws IOException
*/
public static String getBeanName(String bean, String domain, Session session)
throws JMException, IOException {
Validate.notNull(session, "Session can't be NULL");
if (bean == null) {
return session.getBean();
}
if (SyntaxUtils.isNull(bean)) {
return null;
}
MBeanServerConnection con = session.getConnection().getServerConnection();
if (bean.indexOf(':') != -1) {
try {
ObjectName name = new ObjectName(bean);
con.getMBeanInfo(name);
return bean;
} catch (MalformedObjectNameException e) {
} catch (InstanceNotFoundException e) {
}
}
String domainName = DomainCommand.getDomainName(domain, session);
if (domainName == null) {
throw new IllegalArgumentException(
"Please specify domain using either -d option or domain command");
}
try {
ObjectName name = new ObjectName(domainName + ":" + bean);
con.getMBeanInfo(name);
return domainName + ":" + bean;
} catch (MalformedObjectNameException e) {
} catch (InstanceNotFoundException e) {
}
throw new IllegalArgumentException("Bean name " + bean + " isn't valid");
}
/**
* Get list of candidate beans
*
* @param session Session
* @return List of bean names
* @throws MalformedObjectNameException
* @throws IOException
*/
static List<String> getCandidateBeanNames(Session session) throws MalformedObjectNameException {
try {
ArrayList<String> results = new ArrayList<String>(BeansCommand.getBeans(session, null));
String domain = session.getDomain();
if (domain != null) {
List<String> beans = BeansCommand.getBeans(session, domain);
for (String bean : beans) {
results.add(bean.substring(domain.length() + 1));
}
}
return results;
} catch (IOException e) {
throw new RuntimeIOException("Couldn't find candidate bean names", e);
}
}
/** @inheritDoc */
@Override
public void execute() throws IOException, JMException {
Session session = getSession();
if (bean == null) {
if (session.getBean() == null) {
session.output.println(SyntaxUtils.NULL);
} else {
session.output.println(session.getBean());
}
return;
}
String beanName = getBeanName(bean, domain, session);
if (beanName == null) {
session.setBean(null);
session.output.printMessage("bean is unset");
return;
}
ObjectName name = new ObjectName(beanName);
MBeanServerConnection con = session.getConnection().getServerConnection();
con.getMBeanInfo(name);
session.setBean(beanName);
session.output.printMessage("bean is set to " + beanName);
}