org.apache.tika.extractor

Interface ContainerExtractor

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

ParserContainerExtractor

public interface ContainerExtractor
extends java.io.Serializable

Tika container extractor interface. Container Extractors provide access to the embedded resources within container formats such as .zip and .doc

Method Summary

Modifier and Type	Method and Description
void	extract(TikaInputStream stream, ContainerExtractor recurseExtractor, EmbeddedResourceHandler handler) Processes a container file, and extracts all the embedded resources from within it.
boolean	isSupported(TikaInputStream input) Is this Container Extractor able to process the supplied container?

Method Detail

isSupported

boolean isSupported(TikaInputStream input)
             throws java.io.IOException

Is this Container Extractor able to process the supplied container?

Throws:

java.io.IOException

Since:

Apache Tika 0.8

extract

void extract(TikaInputStream stream,
             ContainerExtractor recurseExtractor,
             EmbeddedResourceHandler handler)
      throws java.io.IOException,
             TikaException

Processes a container file, and extracts all the embedded resources from within it.

The EmbeddedResourceHandler you supply will be called for each embedded resource in the container. It is up to you whether you process the contents of the resource or not.

The given document stream is consumed but not closed by this method. The responsibility to close the stream remains on the caller.

If required, nested containers (such as a .docx within a .zip) can automatically be recursed into, and processed inline. If no recurseExtractor is given, the nested containers will be treated as with any other embedded resources.

Parameters:

stream - the document stream (input)

recurseExtractor - the extractor to use on any embedded containers

handler - handler for the embedded files (output)

Throws:

java.io.IOException - if the document stream could not be read

TikaException - if the container could not be parsed

Since:

Apache Tika 0.8