LogTransformer (Solr 7.7.0 API)

java.lang.Object
- org.apache.solr.handler.dataimport.Transformer
- - org.apache.solr.handler.dataimport.LogTransformer

```
public class LogTransformer
extends Transformer
```
A Transformer implementation which logs messages in a given template format.
Refer to http://wiki.apache.org/solr/DataImportHandler for more details.
This API is experimental and may change in the future.

Since:

solr 1.4

Field Summary

Fields
Modifier and Type Field Description

static String LOG_LEVEL

static String LOG_TEMPLATE

Constructor Summary

Constructors
Constructor Description

LogTransformer()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Object`	`transformRow(Map<String,Object> row, Context ctx)`	The input is a row of data and the output has to be a new row.

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

- Field Detail
  - LOG_TEMPLATE
```
public static final String LOG_TEMPLATE
```
    See Also:
    
    Constant Field Values
  - LOG_LEVEL
```
public static final String LOG_LEVEL
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - LogTransformer
```
public LogTransformer()
```
- Method Detail
  - transformRow
```
public Object transformRow(Map<String,Object> row,
                           Context ctx)
```
    Description copied from class: Transformer
    
    The input is a row of data and the output has to be a new row.
    
    Specified by:
    
    transformRow in class Transformer
    
    Parameters:
    
    row - A row of data
    
    ctx - The current context
    
    Returns:
    
    The changed data. It must be a Map<String, Object> if it returns only one row or if there are multiple rows to be returned it must be a List<Map<String, Object>>