CollectedInfo (Apache Tomcat 10.1.56 API Documentation)

java.lang.Object
- org.apache.catalina.ha.backend.CollectedInfo

```
public class CollectedInfo
extends java.lang.Object
```
Listener to provide information to mod_heartbeat.c. Collects connector thread pool information via JMX to report ready and busy thread counts.

Field Summary

Fields
Modifier and Type	Field	Description
`protected javax.management.MBeanServer`	`mBeanServer`	The MBean server used to collect information.
`protected javax.management.ObjectName`	`objName`	The object name of the thread pool MBean.

Constructor Summary

Constructors
Constructor	Description
`CollectedInfo(java.lang.String host, int port)`	Creates a new CollectedInfo instance and initializes it with the specified host and port.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`init(java.lang.String host, int port)`	Initializes the collected info by looking up the thread pool MBean for the given host and port.
`void`	`refresh()`	Refreshes the ready and busy thread counts from the thread pool MBean.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - mBeanServer
```
protected javax.management.MBeanServer mBeanServer
```
    The MBean server used to collect information.
  - objName
```
protected javax.management.ObjectName objName
```
    The object name of the thread pool MBean.
- Constructor Detail
  - CollectedInfo
```
public CollectedInfo(java.lang.String host,
                     int port)
              throws java.lang.Exception
```
    Creates a new CollectedInfo instance and initializes it with the specified host and port.
    
    Parameters:
    
    host - the host
    
    port - the port
    
    Throws:
    
    java.lang.Exception - if initialization fails
- Method Detail
  - init
```
public void init(java.lang.String host,
                 int port)
          throws java.lang.Exception
```
    Initializes the collected info by looking up the thread pool MBean for the given host and port.
    
    Parameters:
    
    host - the host (may be null to match any host)
    
    port - the port (0 to match any port)
    
    Throws:
    
    java.lang.Exception - if no matching connector is found
  - refresh
```
public void refresh()
             throws java.lang.Exception
```
    Refreshes the ready and busy thread counts from the thread pool MBean.
    
    Throws:
    
    java.lang.Exception - if not initialized or MBean access fails