Class FileSystemEmitter

java.lang.Object

org.apache.tika.pipes.emitter.AbstractEmitter

org.apache.tika.pipes.emitter.fs.FileSystemEmitter

All Implemented Interfaces:

Emitter, StreamEmitter

public class FileSystemEmitter
extends AbstractEmitter
implements StreamEmitter

Emitter to write to a file system.

This calculates the path to write to based on the basePath and the value of the TikaCoreProperties.SOURCE_PATH value.

 <properties>
     <emitters>
         <emitter class="org.apache.tika.pipes.emitter.fs.FileSystemEmitter>
             <params>
                 <!-- required -->
                 <param name="name" type="string">fs</param>
                 <!-- required -->
                 <param name="basePath" type="string">/path/to/output</param>
                 <!-- optional; default is 'json' -->
                 <param name="fileExtension" type="string">json</param>
                 <!-- optional; if the file already exists,
                      options ('skip', 'replace', 'exception')
                 default is 'exception' -->
                 <param name="onExists" type="string">skip</param>
                 <!-- optional; whether or not to pretty print the output
                     default is false -->
                    <param name="prettyPrint" type="boolean">true</param>
             </params>
         </emitter>
     </emitters>
 </properties>

Constructor Summary

Constructors

Constructor	Description
FileSystemEmitter()

Method Summary

Modifier and Type	Method	Description
void	emit(String path, InputStream inputStream, Metadata userMetadata, ParseContext parseContext)
void	emit(String emitKey, List<Metadata> metadataList, ParseContext parseContext)
void	setBasePath(String basePath)
void	setFileExtension(String fileExtension)	If you want to customize the output file's file extension.
void	setOnExists(String onExists)	What to do if the target file already exists.
void	setPrettyPrint(boolean prettyPrint)

Methods inherited from class AbstractEmitter

emit, getName, setName

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface Emitter

emit, getName

Constructor Details

FileSystemEmitter

public FileSystemEmitter()

Method Details

emit

public void emit(String emitKey,
 List<Metadata> metadataList,
 ParseContext parseContext)
          throws IOException,
TikaEmitterException

Specified by:

emit in interface Emitter

Throws:

IOException

TikaEmitterException

setBasePath

@Field
public void setBasePath(String basePath)

setFileExtension

@Field
public void setFileExtension(String fileExtension)

If you want to customize the output file's file extension. Do not include the "."

Parameters:

fileExtension -

setOnExists

@Field
public void setOnExists(String onExists)

What to do if the target file already exists. NOTE: if more than one thread is trying write to the same file and FileSystemEmitter.ON_EXISTS.REPLACE is chosen, you still might get a FileAlreadyExistsException.

Parameters:

onExists -

setPrettyPrint

@Field
public void setPrettyPrint(boolean prettyPrint)

emit

public void emit(String path,
 InputStream inputStream,
 Metadata userMetadata,
 ParseContext parseContext)
          throws IOException,
TikaEmitterException

Specified by:

emit in interface StreamEmitter

Throws:

IOException

TikaEmitterException