RasNodes (Storm 2.7.1 API)

java.lang.Object
- org.apache.storm.scheduler.resource.RasNodes

```
public class RasNodes
extends Object
```

Constructor Summary

Constructors
Constructor Description

RasNodes(Cluster cluster)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`freeSlots(Collection<WorkerSlot> workerSlots)`	Free everything on the given slots.
`static Map<String,RasNode>`	`getAllNodesFrom(Cluster cluster)`
`Map<String,List<RasNode>>`	`getHostnameToNodes()`	Get a map with list of RasNode for each hostname.
`RasNode`	`getNodeById(String nodeId)`	get node object from nodeId.
`Map<String,String>`	`getNodeIdToHostname()`	Get a map from RasNodeId to HostName.
`Collection<RasNode>`	`getNodes()`
`String`	`toString()`

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

- Constructor Detail
  - RasNodes
```
public RasNodes(Cluster cluster)
```
- Method Detail
  - getAllNodesFrom
```
public static Map<String,RasNode> getAllNodesFrom(Cluster cluster)
```
  - getNodeById
```
public RasNode getNodeById(String nodeId)
```
    get node object from nodeId.
  - freeSlots
```
public void freeSlots(Collection<WorkerSlot> workerSlots)
```
    Free everything on the given slots.
    
    Parameters:
    
    workerSlots - the slots to free
  - getNodes
```
public Collection<RasNode> getNodes()
```
  - getHostnameToNodes
```
public Map<String,List<RasNode>> getHostnameToNodes()
```
    Get a map with list of RasNode for each hostname.
    
    Returns:
    
    map of hostname to a list of RasNode
  - getNodeIdToHostname
```
public Map<String,String> getNodeIdToHostname()
```
    Get a map from RasNodeId to HostName.
    
    Returns:
    
    map of nodeId to hostname
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object