ConstSpoutNullBoltTopo (Storm 2.7.1 API)

java.lang.Object
- org.apache.storm.perf.ConstSpoutNullBoltTopo

```
public class ConstSpoutNullBoltTopo
extends Object
```
This topo helps measure the messaging peak throughput between a spout and a bolt.
Spout generates a stream of a fixed string.
Bolt will simply ack and discard the tuple received.

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`BOLT_COUNT`
`static String`	`BOLT_ID`
`static String`	`DEFAULT_GROUPING`
`static String`	`GROUPING`
`static String`	`LOCAL_GROPING`
`static String`	`SHUFFLE_GROUPING`
`static String`	`SPOUT_COUNT`
`static String`	`SPOUT_ID`
`static String`	`TOPOLOGY_NAME`

Constructor Summary

Constructors
Constructor Description

ConstSpoutNullBoltTopo()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`main(String[] args)`	ConstSpout -> DevNullBolt with configurable grouping (default localOrShuffle).

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

- Field Detail
  - TOPOLOGY_NAME
```
public static final String TOPOLOGY_NAME
```
    See Also:
    
    Constant Field Values
  - SPOUT_ID
```
public static final String SPOUT_ID
```
    See Also:
    
    Constant Field Values
  - BOLT_ID
```
public static final String BOLT_ID
```
    See Also:
    
    Constant Field Values
  - BOLT_COUNT
```
public static final String BOLT_COUNT
```
    See Also:
    
    Constant Field Values
  - SPOUT_COUNT
```
public static final String SPOUT_COUNT
```
    See Also:
    
    Constant Field Values
  - GROUPING
```
public static final String GROUPING
```
    See Also:
    
    Constant Field Values
  - LOCAL_GROPING
```
public static final String LOCAL_GROPING
```
    See Also:
    
    Constant Field Values
  - SHUFFLE_GROUPING
```
public static final String SHUFFLE_GROUPING
```
    See Also:
    
    Constant Field Values
  - DEFAULT_GROUPING
```
public static final String DEFAULT_GROUPING
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - ConstSpoutNullBoltTopo
```
public ConstSpoutNullBoltTopo()
```
- Method Detail
  - main
```
public static void main(String[] args)
                 throws Exception
```
    ConstSpout -> DevNullBolt with configurable grouping (default localOrShuffle).
    
    Throws:
    
    Exception