FeatureProvider (appNG Parent 2.0.0-SNAPSHOT API)

All Known Implementing Classes:

FeatureProviderImpl, TestBase.SimpleFeatureProvider
```
public interface FeatureProvider
```
A Application can make use of several features provided by appNG. To enable a feature, a certain Property needs to be set for the Application. This can be done in the application's application-info.xml or via the administration-tool.

Author:

Matthias Herlitzius

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`File`	`getImageCache()`	Returns the folder to use for caching images, only available if `featureImageProcessing` is enabled.
`ImageProcessor`	`getImageProcessor(File sourceFile, String targetFile)`	Returns an `ImageProcessor` for the given sourceFile. To enable this feature, set the `Application`'s `Property` `featureImageProcessing` to `true`.
`Consumer<DocumentEvent,DocumentProducer>`	`getIndexer()`	Returns a `Consumer` which consumes `DocumentEvent`s produced by a `DocumentProducer`.The returned `Consumer` writes to the Lucene-powered search-index of the `Site`. To enable this feature, set the `Application`'s `Property` `featureIndexing` to `true` .

- Method Detail
  - getImageProcessor
```
ImageProcessor getImageProcessor(File sourceFile,
                                 String targetFile)
```
    Returns an ImageProcessor for the given sourceFile.
    To enable this feature, set the Application's Property featureImageProcessing to true.
    
    Parameters:
    
    sourceFile - the source image (should have an absolute path)
    
    targetFile - the path to the target file to be created, relative to Platform.Property.IMAGE_CACHE_FOLDER.
    
    Returns:
    
    an ImageProcessor for the given source file
  - getImageCache
```
File getImageCache()
```
    Returns the folder to use for caching images, only available if featureImageProcessing is enabled.
    
    Returns:
    
    the cache folder for images
    
    See Also:
    
    getImageProcessor(File, String)
  - getIndexer
```
Consumer<DocumentEvent,DocumentProducer> getIndexer()
```
    Returns a Consumer which consumes DocumentEvents produced by a DocumentProducer.The returned Consumer writes to the Lucene-powered
    search-index of the Site.
    To enable this feature, set the Application's Property featureIndexing to true .
    
    Returns:
    
    a Consumer consuming DocumentEvents produced by a DocumentProducer