DaoHealthCheck (OpenNMS 28.0.0 API)

java.lang.Object
- org.opennms.features.distributed.dao.healthcheck.DaoHealthCheck

All Implemented Interfaces:

HealthCheck
```
public class DaoHealthCheck
extends java.lang.Object
implements HealthCheck
```
Verifies that at least the NodeDao can be consumed as a OSGi service, otherwise it is considered a Failure. This is necessary to ensure that in case of running the DAOs inside sentinel they were exposed through the spring extender as the bundle may be ACTIVE but no spring services were exposed.

Author:

mvrueden

Constructor Summary

Constructors
Constructor Description

DaoHealthCheck(org.osgi.framework.BundleContext bundleContext)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.String`	`getDescription()`	The description of the `HealthCheck`, e.g.
`Response`	`perform(Context context)`	Implements the check itself, e.g.

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

- Constructor Detail
  - DaoHealthCheck
```
public DaoHealthCheck(org.osgi.framework.BundleContext bundleContext)
```
- Method Detail
  - getDescription
```
public java.lang.String getDescription()
```
    Description copied from interface: HealthCheck
    
    The description of the HealthCheck, e.g. "Connecting to OpenNMS ReST API". This is used when visualizing the progress or result of the checks.
    
    Specified by:
    
    getDescription in interface HealthCheck
    
    Returns:
    
    The string, describing the check.
  - perform
```
public Response perform(Context context)
```
    Description copied from interface: HealthCheck
    
    Implements the check itself, e.g. Connecting to a HTTP Endpoint. As the method is called by the HealthCheckService, it is advised that all timeout restrictions etc are handled by the service instead of the HealthCheck implementation. Implementations might throw an Exception, which should be handled by the HealthCheckService as well. The response indicates if the check was successful, or encountered other problems. If null is returned, the HealthCheckService should consider this as Status.Unknown.
    
    Specified by:
    
    perform in interface HealthCheck
    
    Returns:
    
    The response indicating the Success/Failure/Timeout/etc of the check
    
    See Also:
    
    HealthCheckService