Package org.apache.poi.ooxml.extractor

Class ExtractorFactory

java.lang.Object

org.apache.poi.ooxml.extractor.ExtractorFactory

public final class ExtractorFactory
extends Object

Figures out the correct POITextExtractor for your supplied document, and returns it.

Note 1 - will fail for many file formats if the POI Scratchpad jar is not present on the runtime classpath

Note 2 - rather than using this, for most cases you would be better off switching to Apache Tika instead!

Field Summary

Fields

Modifier and Type	Field	Description
static String	CORE_DOCUMENT_REL

Method Summary

Modifier and Type	Method	Description
static <T extends POITextExtractor> T	createExtractor(File f)
static POITextExtractor	createExtractor(InputStream inp)
static POITextExtractor	createExtractor(OPCPackage pkg)	Tries to determine the actual type of file and produces a matching text-extractor for it.
static <T extends POITextExtractor> T	createExtractor(DirectoryNode poifsDir)
static <T extends POITextExtractor> T	createExtractor(POIFSFileSystem fs)
static Boolean	getAllThreadsPreferEventExtractors()	Should all threads prefer event based over usermodel based extractors? (usermodel extractors tend to be more accurate, but use more memory) Default is to use the thread level setting, which defaults to false.
static POITextExtractor[]	getEmbeddedDocsTextExtractors(POIOLE2TextExtractor ext)	Returns an array of text extractors, one for each of the embedded documents in the file (if there are any).
static POITextExtractor[]	getEmbeddedDocsTextExtractors(POIXMLTextExtractor ext)	Returns an array of text extractors, one for each of the embedded documents in the file (if there are any).
static POITextExtractor[]	getEmbededDocsTextExtractors(POIOLE2TextExtractor ext)	Deprecated. Use the method with correct "embedded"
static POITextExtractor[]	getEmbededDocsTextExtractors(POIXMLTextExtractor ext)	Deprecated. Use the method with correct "embedded"
static boolean	getPreferEventExtractor()	Should this thread use event based extractors is available? Checks the all-threads one first, then thread specific.
static boolean	getThreadPrefersEventExtractors()	Should this thread prefer event based over usermodel based extractors? (usermodel extractors tend to be more accurate, but use more memory) Default is false.
static void	setAllThreadsPreferEventExtractors(Boolean preferEventExtractors)	Should all threads prefer event based over usermodel based extractors? If set, will take preference over the Thread level setting.
static void	setThreadPrefersEventExtractors(boolean preferEventExtractors)	Should this thread prefer event based over usermodel based extractors? Will only be used if the All Threads setting is null.

Methods inherited from class java.lang.Object

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

Field Detail

CORE_DOCUMENT_REL

public static final String CORE_DOCUMENT_REL

See Also:

Constant Field Values

Method Detail

getThreadPrefersEventExtractors

public static boolean getThreadPrefersEventExtractors()

Should this thread prefer event based over usermodel based extractors? (usermodel extractors tend to be more accurate, but use more memory) Default is false.

getAllThreadsPreferEventExtractors

public static Boolean getAllThreadsPreferEventExtractors()

Should all threads prefer event based over usermodel based extractors? (usermodel extractors tend to be more accurate, but use more memory) Default is to use the thread level setting, which defaults to false.

setThreadPrefersEventExtractors

public static void setThreadPrefersEventExtractors(boolean preferEventExtractors)

Should this thread prefer event based over usermodel based extractors? Will only be used if the All Threads setting is null.

setAllThreadsPreferEventExtractors

public static void setAllThreadsPreferEventExtractors(Boolean preferEventExtractors)

Should all threads prefer event based over usermodel based extractors? If set, will take preference over the Thread level setting.

getPreferEventExtractor

public static boolean getPreferEventExtractor()

Should this thread use event based extractors is available? Checks the all-threads one first, then thread specific.

createExtractor

public static <T extends POITextExtractor> T createExtractor(File f)
                                                      throws IOException,
                                                             OpenXML4JException,
                                                             XmlException

Throws:

IOException

OpenXML4JException

XmlException

createExtractor

public static POITextExtractor createExtractor(InputStream inp)
                                        throws IOException,
                                               OpenXML4JException,
                                               XmlException

Throws:

IOException

OpenXML4JException

XmlException

createExtractor

public static POITextExtractor createExtractor(OPCPackage pkg)
                                        throws IOException,
                                               OpenXML4JException,
                                               XmlException

Tries to determine the actual type of file and produces a matching text-extractor for it.

Parameters:

pkg - An OPCPackage.

Returns:

A POIXMLTextExtractor for the given file.

Throws:

IOException - If an error occurs while reading the file

OpenXML4JException - If an error parsing the OpenXML file format is found.

XmlException - If an XML parsing error occurs.

IllegalArgumentException - If no matching file type could be found.

createExtractor

public static <T extends POITextExtractor> T createExtractor(POIFSFileSystem fs)
                                                      throws IOException,
                                                             OpenXML4JException,
                                                             XmlException

Throws:

IOException

OpenXML4JException

XmlException

createExtractor

public static <T extends POITextExtractor> T createExtractor(DirectoryNode poifsDir)
                                                      throws IOException,
                                                             OpenXML4JException,
                                                             XmlException

Throws:

IOException

OpenXML4JException

XmlException

getEmbededDocsTextExtractors

@Deprecated
@Removal(version="4.2")
public static POITextExtractor[] getEmbededDocsTextExtractors(POIOLE2TextExtractor ext)
                                                       throws IOException,
                                                              OpenXML4JException,
                                                              XmlException

Deprecated.

Use the method with correct "embedded"

Returns an array of text extractors, one for each of the embedded documents in the file (if there are any). If there are no embedded documents, you'll get back an empty array. Otherwise, you'll get one open POITextExtractor for each embedded file.

Throws:

IOException

OpenXML4JException

XmlException

getEmbeddedDocsTextExtractors

public static POITextExtractor[] getEmbeddedDocsTextExtractors(POIOLE2TextExtractor ext)
                                                        throws IOException,
                                                               OpenXML4JException,
                                                               XmlException

Returns an array of text extractors, one for each of the embedded documents in the file (if there are any). If there are no embedded documents, you'll get back an empty array. Otherwise, you'll get one open POITextExtractor for each embedded file.

Throws:

IOException

OpenXML4JException

XmlException

getEmbededDocsTextExtractors

@Deprecated
@Removal(version="4.2")
@NotImplemented
public static POITextExtractor[] getEmbededDocsTextExtractors(POIXMLTextExtractor ext)

Deprecated.

Use the method with correct "embedded"

Returns an array of text extractors, one for each of the embedded documents in the file (if there are any). If there are no embedded documents, you'll get back an empty array. Otherwise, you'll get one open POITextExtractor for each embedded file.

getEmbeddedDocsTextExtractors

@NotImplemented
public static POITextExtractor[] getEmbeddedDocsTextExtractors(POIXMLTextExtractor ext)

Returns an array of text extractors, one for each of the embedded documents in the file (if there are any). If there are no embedded documents, you'll get back an empty array. Otherwise, you'll get one open POITextExtractor for each embedded file.