org.alfresco.repo.content.metadata

Class PoiMetadataExtracter

java.lang.Object

org.alfresco.repo.content.metadata.AbstractMappingMetadataExtracter

org.alfresco.repo.content.metadata.TikaPoweredMetadataExtracter

org.alfresco.repo.content.metadata.PoiMetadataExtracter

All Implemented Interfaces:

ContentWorker, MetadataEmbedder, MetadataExtracter, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationContextAware

public class PoiMetadataExtracter
extends TikaPoweredMetadataExtracter
implements org.springframework.beans.factory.InitializingBean

POI-based metadata extractor for Office 07 documents. See http://poi.apache.org/ for information on POI.

   author:                 --      cm:author
   title:                  --      cm:title
   subject:                --      cm:description
   created:                --      cm:created
   Any custom property:    --      [not mapped]
 

Uses Apache Tika

Configures AlfrescoPoiPatchUtils to resolve the following issues:

• MNT-577
• MNT-11823

Author:

Nick Burch, Neil McErlean, Dmitry Velichkevich

Nested Class Summary

Nested classes/interfaces inherited from class org.alfresco.repo.content.metadata.TikaPoweredMetadataExtracter

TikaPoweredMetadataExtracter.HeadContentHandler, TikaPoweredMetadataExtracter.MapCaptureContentHandler, TikaPoweredMetadataExtracter.NullContentHandler

Nested classes/interfaces inherited from interface org.alfresco.repo.content.metadata.MetadataExtracter

MetadataExtracter.OverwritePolicy

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.apache.commons.logging.Log	logger
static ArrayList<String>	SUPPORTED_MIMETYPES

Fields inherited from class org.alfresco.repo.content.metadata.TikaPoweredMetadataExtracter

documentSelector, KEY_AUTHOR, KEY_COMMENTS, KEY_CREATED, KEY_DESCRIPTION, KEY_SUBJECT, KEY_TAGS, KEY_TITLE

Fields inherited from class org.alfresco.repo.content.metadata.AbstractMappingMetadataExtracter

MEGABYTE_SIZE, metadataExtracterConfig, NAMESPACE_PROPERTY_PREFIX, PROPERTY_COMPONENT_EMBED, PROPERTY_COMPONENT_EXTRACT, PROPERTY_PREFIX_METADATA

Constructor Summary

Constructors

Constructor and Description
PoiMetadataExtracter()

Method Summary

Modifier and Type	Method and Description
void	afterPropertiesSet() MNT-11823: Upload of PPTX causes very high memory usage leading to system instability Initialization of AlfrescoPoiPatchUtils properties for TikaPoweredMetadataExtracter.getExtractorContext() context
protected org.apache.tika.parser.Parser	getParser() Returns the correct Tika Parser to process the document.
Set<String>	getPoiAllowableXslfRelationshipTypes()
Boolean	isPoiExtractPropertiesOnly()
void	setPoiAllowableXslfRelationshipTypes(Set<String> poiAllowableXslfRelationshipTypes) MNT-11823: Upload of PPTX causes very high memory usage leading to system instability
void	setPoiExtractPropertiesOnly(Boolean poiExtractPropertiesOnly) MNT-11823: Upload of PPTX causes very high memory usage leading to system instability
void	setPoiFootnotesLimit(Integer poiFootnotesLimit) MNT-577: Alfresco is running 100% CPU for over 10 minutes while extracting metadata for Word office document

Methods inherited from class org.alfresco.repo.content.metadata.TikaPoweredMetadataExtracter

buildParseContext, buildSupportedMimetypes, embedInternal, extractRaw, extractSize, extractSpecific, getDocumentSelector, getEmbedder, getExtractorContext, getInputStream, getMetadataSeparator, makeDate, needHeaderContents, setDocumentSelector, setMetadataSeparator

Methods inherited from class org.alfresco.repo.content.metadata.AbstractMappingMetadataExtracter

checkIsEmbedSupported, checkIsSupported, embed, extract, extract, extract, filterSystemProperties, getBeanName, getDefaultEmbedMapping, getDefaultMapping, getEmbedMapping, getExecutorService, getLimits, getMapping, getMimetypeService, init, isEmbeddingSupported, isSupported, newRawMap, putRawValue, readEmbedMappingProperties, readEmbedMappingProperties, readGlobalEmbedMappingProperties, readGlobalExtractMappingProperties, readMappingProperties, readMappingProperties, register, setApplicationContext, setBeanName, setDictionaryService, setEmbedMapping, setEmbedMappingProperties, setEnableStringTagging, setExecutorService, setFailOnTypeConversion, setInheritDefaultEmbedMapping, setInheritDefaultMapping, setMapping, setMappingProperties, setMetadataExtracterConfig, setMimetypeLimits, setMimetypeService, setOverwritePolicy, setProperties, setRegistry, setSupportedDateFormats, setSupportedEmbedMimetypes, setSupportedMimetypes

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.alfresco.repo.content.metadata.MetadataEmbedder

embed, isEmbeddingSupported

Field Detail

logger

protected static org.apache.commons.logging.Log logger

SUPPORTED_MIMETYPES

public static ArrayList<String> SUPPORTED_MIMETYPES

Constructor Detail

PoiMetadataExtracter

public PoiMetadataExtracter()

Method Detail

getParser

protected org.apache.tika.parser.Parser getParser()

Description copied from class: TikaPoweredMetadataExtracter

Returns the correct Tika Parser to process the document. If you don't know which you want, use TikaAutoMetadataExtracter which makes use of the Tika auto-detection.

Specified by:

getParser in class TikaPoweredMetadataExtracter

setPoiFootnotesLimit

public void setPoiFootnotesLimit(Integer poiFootnotesLimit)

MNT-577: Alfresco is running 100% CPU for over 10 minutes while extracting metadata for Word office document

Parameters:

poiFootnotesLimit - - Integer value which specifies limit of amount of footnotes of XWPF documents

setPoiExtractPropertiesOnly

public void setPoiExtractPropertiesOnly(Boolean poiExtractPropertiesOnly)

MNT-11823: Upload of PPTX causes very high memory usage leading to system instability

Parameters:

poiExtractPropertiesOnly - - Boolean value which indicates that POI extractor must avoid building of the full document parts hierarchy and reading content of the parts

isPoiExtractPropertiesOnly

public Boolean isPoiExtractPropertiesOnly()

setPoiAllowableXslfRelationshipTypes

public void setPoiAllowableXslfRelationshipTypes(Set<String> poiAllowableXslfRelationshipTypes)

MNT-11823: Upload of PPTX causes very high memory usage leading to system instability

Parameters:

poiAllowableXslfRelationshipTypes - - Set<String> instance which determines the list of allowable relationship types for traversing during analyzing of XSLF document

getPoiAllowableXslfRelationshipTypes

public Set<String> getPoiAllowableXslfRelationshipTypes()

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

MNT-11823: Upload of PPTX causes very high memory usage leading to system instability

Initialization of AlfrescoPoiPatchUtils properties for TikaPoweredMetadataExtracter.getExtractorContext() context

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

Throws:

Exception