Package org.apache.tika.detect.zip

Class StreamingZipContainerDetector

java.lang.Object

org.apache.tika.detect.zip.DefaultZipContainerDetector

org.apache.tika.detect.zip.StreamingZipContainerDetector

All Implemented Interfaces:

Serializable, SelfConfiguring, Detector

public class StreamingZipContainerDetector
extends DefaultZipContainerDetector

A zip container detector that uses only streaming detection, never opening the file as a ZipFile. This is primarily used in tests to verify streaming detection behavior.

Unlike DefaultZipContainerDetector, this will never try to open the File as a ZipFile; this relies solely on streaming detection.

If you need to limit the amount of data read during detection, wrap your input stream in a BoundedInputStream before passing it to the detector.

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.apache.tika.detect.zip.DefaultZipContainerDetector

staticZipDetectors

Constructor Summary

Constructors

Constructor	Description
StreamingZipContainerDetector()
StreamingZipContainerDetector(List<ZipContainerDetector> zipDetectors)
StreamingZipContainerDetector(ServiceLoader loader)

Method Summary

Modifier and Type	Method	Description
MediaType	detect(TikaInputStream tis, Metadata metadata, ParseContext parseContext)	Detects the content type of the given input document.

Methods inherited from class java.lang.Object

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

Constructor Details

StreamingZipContainerDetector

public StreamingZipContainerDetector()

StreamingZipContainerDetector

public StreamingZipContainerDetector(ServiceLoader loader)

StreamingZipContainerDetector

public StreamingZipContainerDetector(List<ZipContainerDetector> zipDetectors)

Method Details

detect

public MediaType detect(TikaInputStream tis,
 Metadata metadata,
 ParseContext parseContext)
                 throws IOException

Description copied from interface: Detector

Detects the content type of the given input document. Returns application/octet-stream if the type of the document can not be detected.

If the document input stream is not available, then the first argument may be null. Otherwise the detector may read bytes from the start of the stream to help in type detection. The detector is expected to mark the stream before reading any bytes from it, and to reset the stream before returning. The stream must not be closed by the detector.

The given input metadata is only read, not modified, by the detector.

Specified by:

detect in interface Detector

Overrides:

detect in class DefaultZipContainerDetector

Parameters:

tis - document input stream, or null

metadata - input metadata for the document

parseContext - the parse context

Returns:

detected media type, or application/octet-stream

Throws:

IOException - if the document input stream could not be read