com.atlassian.confluence.impl.search.extractor

Class LimitedTextContentExtractor

java.lang.Object

com.atlassian.confluence.search.v2.extractor.BaseAttachmentContentExtractor

com.atlassian.confluence.impl.search.extractor.LimitedTextContentExtractor

All Implemented Interfaces:

Extractor2

public class LimitedTextContentExtractor
extends BaseAttachmentContentExtractor

A subclass of BaseAttachmentContentExtractor which places a limit on how many bytes of the input stream are read into memory. This prevents it from potentially reading in huge attachment streams that trigger memory starvation.

This may have the side-effect of some content not being indexed if it is to be found "beyond" the limit, but that's preferable to an OOME.

The default value was changed from fixed 10Mb to be in line with the value set for Attachments:

Since:

7.17

See Also:

AttachmentExtractedTextExtractor

Constructor Summary

Constructors

Constructor and Description
LimitedTextContentExtractor()

Method Summary

Modifier and Type	Method and Description
protected String	extractText(InputStream is, com.atlassian.bonnie.search.SearchableAttachment attachment)
protected boolean	shouldExtractFrom(String fileName, String contentType) Extract text from mime types like 'text/*', 'application/xml*' and 'application/*+xml'

Methods inherited from class com.atlassian.confluence.search.v2.extractor.BaseAttachmentContentExtractor

extractFields, extractText, extractText

Methods inherited from class java.lang.Object

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

Constructor Detail

LimitedTextContentExtractor

public LimitedTextContentExtractor()

Method Detail

shouldExtractFrom

protected boolean shouldExtractFrom(String fileName,
                                    String contentType)

Extract text from mime types like 'text/*', 'application/xml*' and 'application/*+xml'

Specified by:

shouldExtractFrom in class BaseAttachmentContentExtractor

extractText

protected String extractText(InputStream is,
                             com.atlassian.bonnie.search.SearchableAttachment attachment)

Specified by:

extractText in class BaseAttachmentContentExtractor

Parameters:

is - a stream containing the attachment contents

attachment - contains useful attachment metadata, e.g. filename

Returns:

a String with a textual representation of the attachment's contents