JvmPidDiscoverer (druid-processing 28.0.0 API)

java.lang.Object
- org.apache.druid.java.util.metrics.JvmPidDiscoverer

All Implemented Interfaces:

PidDiscoverer
```
public class JvmPidDiscoverer
extends Object
implements PidDiscoverer
```
For systems that for whatever reason cannot use Sigar (through org.apache.druid.java.util.metrics.SigarPidDiscoverer ), this attempts to get the PID from the JVM "name".

- Method Summary
  
  All Methods Static Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  long getPid()
  Returns the PID as a best guess.
  
  static JvmPidDiscoverer instance()
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - instance
```
public static JvmPidDiscoverer instance()
```
  - getPid
```
public long getPid()
```
    Returns the PID as a best guess. This uses methods that are not guaranteed to actually be the PID.
    TODO: switch to ProcessHandle.current().getPid() for java9 potentially
    
    Specified by:
    
    getPid in interface PidDiscoverer
    
    Returns:
    
    the PID of the current jvm if available
    
    Throws:
    
    RuntimeException - if the pid cannot be determined