DerivedFileProducer

```
public interface DerivedFileProducer
```
Used by FileSystemService.getDerivedFile(FSRL, String, DerivedFileProducer, TaskMonitor) to produce a derived file from a source file.
The InputStream returned from the method will be closed by the caller.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.io.InputStream`	`produceDerivedStream(java.io.File srcFile)`	Callback method intended to be implemented by the caller to `FileSystemService.getDerivedFile(FSRL, String, DerivedFileProducer, TaskMonitor)`.

- Method Detail
  - produceDerivedStream
```
java.io.InputStream produceDerivedStream(java.io.File srcFile)
                                  throws java.io.IOException,
                                         CancelledException
```
    Callback method intended to be implemented by the caller to FileSystemService.getDerivedFile(FSRL, String, DerivedFileProducer, TaskMonitor).
    The implementation needs to return an InputStream that contains the bytes of the derived file.
    
    Parameters:
    
    srcFile - File location of the source file (usually in the file cache)
    
    Returns:
    
    a new InputStream that will produce all the bytes of the derived file.
    
    Throws:
    
    java.io.IOException - if there is a problem while producing the InputStream.
    
    CancelledException - if the user canceled.