org.apache.poi.patch

Class AlfrescoPoiPatchUtils

java.lang.Object

org.apache.poi.patch.AlfrescoPoiPatchUtils

public class AlfrescoPoiPatchUtils
extends Object

Patch for ALF-17957 and MNT-11823

Author:

Viachaslau Tsikhanovich, Dmitry Velichkevich

Constructor Summary

Constructors

Constructor and Description
AlfrescoPoiPatchUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static List<org.openxmlformats.schemas.wordprocessingml.x2006.main.CTFtnEdn>	getLimitedReadonlyList(org.openxmlformats.schemas.wordprocessingml.x2006.main.CTFootnotes mutableFootnotes) MNT-577: Alfresco is running 100% CPU for over 10 minutes while extracting metadata for Word office document Converts mutable CTFootnotes to read-only limited list of CTFtnEdn
static Iterable<PackageRelationship>	getRelationships(POIXMLFactory factory, PackagePart packagePart) MNT-11823: Upload of PPTX causes very high memory usage leading to system instability Returns filtered list of PackageRelationship relationships if properties extraction is enabled and parsing is going on for XSLF document or all relationships of the document
static void	setContext(String context) Sets the current POI context.
static void	setPoiAllowableXslfRelationshipTypes(String context, Set<String> poiAllowableXslfRelationshipTypes) Sets Set<String> set which determines the list of allowable relationship types for traversing during analyzing of XSLF document.
static void	setPoiExtractPropertiesOnly(String context, boolean poiExtractPropertiesOnly) Sets the flag to determine whether the entire content of XSLF document must be parsed (false) or not (true).
static void	setPoiFootnotesLimit(String context, int poiFootnotesLimit) Sets footnotes limit for XWPF documents parser.

Methods inherited from class java.lang.Object

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

Constructor Detail

AlfrescoPoiPatchUtils

public AlfrescoPoiPatchUtils()

Method Detail

setPoiFootnotesLimit

public static void setPoiFootnotesLimit(String context,
                        int poiFootnotesLimit)

Sets footnotes limit for XWPF documents parser. Default value DEFAULT_FOOTNOTES_LIMIT is set if this parameter is not set directly. Related to MNT-577

Parameters:

context - - String value which specifies context of the property

poiFootnotesLimit - - Integer value which determines the desired footnotes limit

setPoiExtractPropertiesOnly

public static void setPoiExtractPropertiesOnly(String context,
                               boolean poiExtractPropertiesOnly)

Sets the flag to determine whether the entire content of XSLF document must be parsed (false) or not (true). Default value is false. Related to MNT-11823

Parameters:

context - - String value which specifies context of the property

poiExtractPropertiesOnly - - Boolean value which determines how parser must process the entire content of XSLF document

setPoiAllowableXslfRelationshipTypes

public static void setPoiAllowableXslfRelationshipTypes(String context,
                                        Set<String> poiAllowableXslfRelationshipTypes)

Sets Set<String> set which determines the list of allowable relationship types for traversing during analyzing of XSLF document. Default value is null. Usually determines relationships which refer to XSLF configuration parts. Related to MNT-11823

Parameters:

context - - String value which specifies context of the property

poiExtractPropertiesOnly - - Set<String> instance which contains allowed document relationship types

setContext

public static void setContext(String context)

Sets the current POI context. AlfrescoPoiPatchUtils will use POI properties for specified context

Parameters:

context - - String value which specifies current POI context

getLimitedReadonlyList

public static List<org.openxmlformats.schemas.wordprocessingml.x2006.main.CTFtnEdn> getLimitedReadonlyList(org.openxmlformats.schemas.wordprocessingml.x2006.main.CTFootnotes mutableFootnotes)

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

Converts mutable CTFootnotes to read-only limited list of CTFtnEdn

Parameters:

mutableFootnotes - - CTFootnotes instance which contains all currently loaded footnotes

Returns:

immutable List<CTFtnEdn> list

getRelationships

public static Iterable<PackageRelationship> getRelationships(POIXMLFactory factory,
                                             PackagePart packagePart)
                                                      throws InvalidFormatException

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

Returns filtered list of PackageRelationship relationships if properties extraction is enabled and parsing is going on for XSLF document or all relationships of the document

Parameters:

factory - - POIXMLFactory instance

packagePart - - PackagePart instance which represents part of OOXML package

Returns:

Iterable<PackageRelationship> instance which contains list of allowable package relationships

Throws:

InvalidFormatException