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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1753028 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Javen O'Neal
parent
e0c50807c4
commit
1cf76af9e8
@ -72,180 +72,180 @@ import org.apache.xmlbeans.XmlException;
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*/
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@SuppressWarnings("WeakerAccess")
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public class ExtractorFactory {
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public static final String CORE_DOCUMENT_REL = PackageRelationshipTypes.CORE_DOCUMENT;
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protected static final String VISIO_DOCUMENT_REL = PackageRelationshipTypes.VISIO_CORE_DOCUMENT;
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protected static final String STRICT_DOCUMENT_REL = PackageRelationshipTypes.STRICT_CORE_DOCUMENT;
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public static final String CORE_DOCUMENT_REL = PackageRelationshipTypes.CORE_DOCUMENT;
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protected static final String VISIO_DOCUMENT_REL = PackageRelationshipTypes.VISIO_CORE_DOCUMENT;
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protected static final String STRICT_DOCUMENT_REL = PackageRelationshipTypes.STRICT_CORE_DOCUMENT;
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/**
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* Should this thread prefer event based over usermodel based extractors?
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* (usermodel extractors tend to be more accurate, but use more memory)
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* Default is false.
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*/
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public static boolean getThreadPrefersEventExtractors() {
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return OLE2ExtractorFactory.getThreadPrefersEventExtractors();
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}
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/**
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* Should this thread prefer event based over usermodel based extractors?
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* (usermodel extractors tend to be more accurate, but use more memory)
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* Default is false.
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*/
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public static boolean getThreadPrefersEventExtractors() {
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return OLE2ExtractorFactory.getThreadPrefersEventExtractors();
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}
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/**
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* Should all threads prefer event based over usermodel based extractors?
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* (usermodel extractors tend to be more accurate, but use more memory)
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* Default is to use the thread level setting, which defaults to false.
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*/
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public static Boolean getAllThreadsPreferEventExtractors() {
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return OLE2ExtractorFactory.getAllThreadsPreferEventExtractors();
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}
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/**
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* Should all threads prefer event based over usermodel based extractors?
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* (usermodel extractors tend to be more accurate, but use more memory)
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* Default is to use the thread level setting, which defaults to false.
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*/
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public static Boolean getAllThreadsPreferEventExtractors() {
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return OLE2ExtractorFactory.getAllThreadsPreferEventExtractors();
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}
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/**
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* Should this thread prefer event based over usermodel based extractors?
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* Will only be used if the All Threads setting is null.
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*/
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public static void setThreadPrefersEventExtractors(boolean preferEventExtractors) {
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OLE2ExtractorFactory.setThreadPrefersEventExtractors(preferEventExtractors);
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}
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/**
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* Should this thread prefer event based over usermodel based extractors?
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* Will only be used if the All Threads setting is null.
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*/
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public static void setThreadPrefersEventExtractors(boolean preferEventExtractors) {
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OLE2ExtractorFactory.setThreadPrefersEventExtractors(preferEventExtractors);
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}
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/**
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* Should all threads prefer event based over usermodel based extractors?
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* If set, will take preference over the Thread level setting.
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*/
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public static void setAllThreadsPreferEventExtractors(Boolean preferEventExtractors) {
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OLE2ExtractorFactory.setAllThreadsPreferEventExtractors(preferEventExtractors);
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}
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/**
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* Should all threads prefer event based over usermodel based extractors?
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* If set, will take preference over the Thread level setting.
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*/
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public static void setAllThreadsPreferEventExtractors(Boolean preferEventExtractors) {
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OLE2ExtractorFactory.setAllThreadsPreferEventExtractors(preferEventExtractors);
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}
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/**
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* Should this thread use event based extractors is available?
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* Checks the all-threads one first, then thread specific.
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*/
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protected static boolean getPreferEventExtractor() {
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return OLE2ExtractorFactory.getPreferEventExtractor();
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}
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/**
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* Should this thread use event based extractors is available?
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* Checks the all-threads one first, then thread specific.
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*/
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protected static boolean getPreferEventExtractor() {
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return OLE2ExtractorFactory.getPreferEventExtractor();
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}
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public static POITextExtractor createExtractor(File f) throws IOException, InvalidFormatException, OpenXML4JException, XmlException {
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NPOIFSFileSystem fs = null;
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public static POITextExtractor createExtractor(File f) throws IOException, InvalidFormatException, OpenXML4JException, XmlException {
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NPOIFSFileSystem fs = null;
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try {
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fs = new NPOIFSFileSystem(f);
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POIOLE2TextExtractor extractor = createExtractor(fs);
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extractor.setFilesystem(fs);
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return extractor;
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} catch (OfficeXmlFileException e) {
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// ensure file-handle release
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IOUtils.closeQuietly(fs);
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IOUtils.closeQuietly(fs);
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return createExtractor(OPCPackage.open(f.toString(), PackageAccess.READ));
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} catch (NotOLE2FileException ne) {
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// ensure file-handle release
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IOUtils.closeQuietly(fs);
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IOUtils.closeQuietly(fs);
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throw new IllegalArgumentException("Your File was neither an OLE2 file, nor an OOXML file");
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} catch (OpenXML4JException e) {
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// ensure file-handle release
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IOUtils.closeQuietly(fs);
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throw e;
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} catch (XmlException e) {
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// ensure file-handle release
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IOUtils.closeQuietly(fs);
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} catch (OpenXML4JException e) {
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// ensure file-handle release
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IOUtils.closeQuietly(fs);
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throw e;
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throw e;
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} catch (IOException e) {
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// ensure file-handle release
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IOUtils.closeQuietly(fs);
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} catch (XmlException e) {
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// ensure file-handle release
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IOUtils.closeQuietly(fs);
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throw e;
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} catch (IOException e) {
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// ensure file-handle release
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IOUtils.closeQuietly(fs);
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throw e;
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throw e;
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} catch (RuntimeException e) {
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// ensure file-handle release
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IOUtils.closeQuietly(fs);
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// ensure file-handle release
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IOUtils.closeQuietly(fs);
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throw e;
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}
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}
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throw e;
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}
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public static POITextExtractor createExtractor(InputStream inp) throws IOException, InvalidFormatException, OpenXML4JException, XmlException {
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// Figure out the kind of stream
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// If clearly doesn't do mark/reset, wrap up
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if (! inp.markSupported()) {
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inp = new PushbackInputStream(inp, 8);
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}
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if (NPOIFSFileSystem.hasPOIFSHeader(inp)) {
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return createExtractor(new NPOIFSFileSystem(inp));
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}
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if (DocumentFactoryHelper.hasOOXMLHeader(inp)) {
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return createExtractor(OPCPackage.open(inp));
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}
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throw new IllegalArgumentException("Your InputStream was neither an OLE2 stream, nor an OOXML stream");
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}
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public static POITextExtractor createExtractor(InputStream inp) throws IOException, InvalidFormatException, OpenXML4JException, XmlException {
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// Figure out the kind of stream
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// If clearly doesn't do mark/reset, wrap up
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if(! inp.markSupported()) {
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inp = new PushbackInputStream(inp, 8);
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}
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if(NPOIFSFileSystem.hasPOIFSHeader(inp)) {
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return createExtractor(new NPOIFSFileSystem(inp));
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}
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if(DocumentFactoryHelper.hasOOXMLHeader(inp)) {
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return createExtractor(OPCPackage.open(inp));
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}
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throw new IllegalArgumentException("Your InputStream was neither an OLE2 stream, nor an OOXML stream");
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}
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/**
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* Tries to determine the actual type of file and produces a matching text-extractor for it.
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*
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* @param pkg An {@link OPCPackage}.
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* @return A {@link POIXMLTextExtractor} for the given file.
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* @throws IOException If an error occurs while reading the file
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* @throws OpenXML4JException If an error parsing the OpenXML file format is found.
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* @throws XmlException If an XML parsing error occurs.
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* @throws IllegalArgumentException If no matching file type could be found.
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*/
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public static POIXMLTextExtractor createExtractor(OPCPackage pkg) throws IOException, OpenXML4JException, XmlException {
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/**
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* Tries to determine the actual type of file and produces a matching text-extractor for it.
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*
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* @param pkg An {@link OPCPackage}.
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* @return A {@link POIXMLTextExtractor} for the given file.
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* @throws IOException If an error occurs while reading the file
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* @throws OpenXML4JException If an error parsing the OpenXML file format is found.
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* @throws XmlException If an XML parsing error occurs.
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* @throws IllegalArgumentException If no matching file type could be found.
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*/
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public static POIXMLTextExtractor createExtractor(OPCPackage pkg) throws IOException, OpenXML4JException, XmlException {
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try {
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// Check for the normal Office core document
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PackageRelationshipCollection core =
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pkg.getRelationshipsByType(CORE_DOCUMENT_REL);
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// If nothing was found, try some of the other OOXML-based core types
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if (core.size() == 0) {
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// Could it be an OOXML-Strict one?
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core = pkg.getRelationshipsByType(STRICT_DOCUMENT_REL);
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}
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if (core.size() == 0) {
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// Could it be a visio one?
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core = pkg.getRelationshipsByType(VISIO_DOCUMENT_REL);
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if (core.size() == 1)
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return new XDGFVisioExtractor(pkg);
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}
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// Should just be a single core document, complain if not
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if (core.size() != 1) {
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throw new IllegalArgumentException("Invalid OOXML Package received - expected 1 core document, found " + core.size());
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}
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// Grab the core document part, and try to identify from that
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PackagePart corePart = pkg.getPart(core.getRelationship(0));
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// Is it XSSF?
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for(XSSFRelation rel : XSSFExcelExtractor.SUPPORTED_TYPES) {
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if(corePart.getContentType().equals(rel.getContentType())) {
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if(getPreferEventExtractor()) {
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return new XSSFEventBasedExcelExtractor(pkg);
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}
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return new XSSFExcelExtractor(pkg);
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}
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}
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// Is it XWPF?
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for(XWPFRelation rel : XWPFWordExtractor.SUPPORTED_TYPES) {
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if(corePart.getContentType().equals(rel.getContentType())) {
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return new XWPFWordExtractor(pkg);
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}
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}
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// Is it XSLF?
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for(XSLFRelation rel : XSLFPowerPointExtractor.SUPPORTED_TYPES) {
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if(corePart.getContentType().equals(rel.getContentType())) {
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return new XSLFPowerPointExtractor(pkg);
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}
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}
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// special handling for SlideShow-Theme-files,
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if(XSLFRelation.THEME_MANAGER.getContentType().equals(corePart.getContentType())) {
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return new XSLFPowerPointExtractor(new XSLFSlideShow(pkg));
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}
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throw new IllegalArgumentException("No supported documents found in the OOXML package (found "+corePart.getContentType()+")");
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} catch (IOException e) {
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// ensure that we close the package again if there is an error opening it, however
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// we need to revert the package to not re-write the file via close(), which is very likely not wanted for a TextExtractor!
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pkg.revert();
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throw e;
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// Check for the normal Office core document
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PackageRelationshipCollection core;
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core = pkg.getRelationshipsByType(CORE_DOCUMENT_REL);
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// If nothing was found, try some of the other OOXML-based core types
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if (core.size() == 0) {
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// Could it be an OOXML-Strict one?
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core = pkg.getRelationshipsByType(STRICT_DOCUMENT_REL);
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}
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if (core.size() == 0) {
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// Could it be a visio one?
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core = pkg.getRelationshipsByType(VISIO_DOCUMENT_REL);
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if (core.size() == 1)
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return new XDGFVisioExtractor(pkg);
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}
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// Should just be a single core document, complain if not
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if (core.size() != 1) {
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throw new IllegalArgumentException("Invalid OOXML Package received - expected 1 core document, found " + core.size());
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}
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// Grab the core document part, and try to identify from that
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PackagePart corePart = pkg.getPart(core.getRelationship(0));
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// Is it XSSF?
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for (XSSFRelation rel : XSSFExcelExtractor.SUPPORTED_TYPES) {
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if (corePart.getContentType().equals(rel.getContentType())) {
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if (getPreferEventExtractor()) {
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return new XSSFEventBasedExcelExtractor(pkg);
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}
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return new XSSFExcelExtractor(pkg);
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}
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}
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// Is it XWPF?
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for (XWPFRelation rel : XWPFWordExtractor.SUPPORTED_TYPES) {
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if (corePart.getContentType().equals(rel.getContentType())) {
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return new XWPFWordExtractor(pkg);
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}
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}
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// Is it XSLF?
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for (XSLFRelation rel : XSLFPowerPointExtractor.SUPPORTED_TYPES) {
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if (corePart.getContentType().equals(rel.getContentType())) {
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return new XSLFPowerPointExtractor(pkg);
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}
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}
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// special handling for SlideShow-Theme-files,
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if (XSLFRelation.THEME_MANAGER.getContentType().equals(corePart.getContentType())) {
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return new XSLFPowerPointExtractor(new XSLFSlideShow(pkg));
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}
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throw new IllegalArgumentException("No supported documents found in the OOXML package (found "+corePart.getContentType()+")");
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} catch (IOException e) {
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// ensure that we close the package again if there is an error opening it, however
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// we need to revert the package to not re-write the file via close(), which is very likely not wanted for a TextExtractor!
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pkg.revert();
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throw e;
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} catch (OpenXML4JException e) {
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// ensure that we close the package again if there is an error opening it, however
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// we need to revert the package to not re-write the file via close(), which is very likely not wanted for a TextExtractor!
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@ -256,27 +256,25 @@ public class ExtractorFactory {
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// we need to revert the package to not re-write the file via close(), which is very likely not wanted for a TextExtractor!
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pkg.revert();
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throw e;
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} catch (RuntimeException e) {
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// ensure that we close the package again if there is an error opening it, however
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// we need to revert the package to not re-write the file via close(), which is very likely not wanted for a TextExtractor!
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pkg.revert();
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throw e;
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}
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}
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} catch (RuntimeException e) {
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// ensure that we close the package again if there is an error opening it, however
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// we need to revert the package to not re-write the file via close(), which is very likely not wanted for a TextExtractor!
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pkg.revert();
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throw e;
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}
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}
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public static POIOLE2TextExtractor createExtractor(POIFSFileSystem fs) throws IOException, OpenXML4JException, XmlException {
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return OLE2ExtractorFactory.createExtractor(fs);
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}
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public static POIOLE2TextExtractor createExtractor(POIFSFileSystem fs) throws IOException, OpenXML4JException, XmlException {
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return OLE2ExtractorFactory.createExtractor(fs);
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}
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public static POIOLE2TextExtractor createExtractor(NPOIFSFileSystem fs) throws IOException, OpenXML4JException, XmlException {
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return OLE2ExtractorFactory.createExtractor(fs);
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}
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}
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public static POIOLE2TextExtractor createExtractor(OPOIFSFileSystem fs) throws IOException, OpenXML4JException, XmlException {
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return OLE2ExtractorFactory.createExtractor(fs);
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}
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}
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public static POITextExtractor createExtractor(DirectoryNode poifsDir) throws IOException,
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OpenXML4JException, XmlException
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public static POITextExtractor createExtractor(DirectoryNode poifsDir) throws IOException, OpenXML4JException, XmlException
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{
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// First, check for OOXML
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for (String entryName : poifsDir.getEntryNames()) {
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@ -285,104 +283,102 @@ public class ExtractorFactory {
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return createExtractor(pkg);
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}
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}
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// If not, ask the OLE2 code to check, with Scratchpad if possible
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return OLE2ExtractorFactory.createExtractor(poifsDir);
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}
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/**
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* Returns an array of text extractors, one for each of
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* the embedded documents in the file (if there are any).
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* If there are no embedded documents, you'll get back an
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* empty array. Otherwise, you'll get one open
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* {@link POITextExtractor} for each embedded file.
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*/
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public static POITextExtractor[] getEmbededDocsTextExtractors(POIOLE2TextExtractor ext) throws IOException, OpenXML4JException, XmlException {
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// All the embedded directories we spotted
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ArrayList<Entry> dirs = new ArrayList<Entry>();
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// For anything else not directly held in as a POIFS directory
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ArrayList<InputStream> nonPOIFS = new ArrayList<InputStream>();
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/**
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* Returns an array of text extractors, one for each of
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* the embedded documents in the file (if there are any).
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* If there are no embedded documents, you'll get back an
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* empty array. Otherwise, you'll get one open
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* {@link POITextExtractor} for each embedded file.
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*/
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public static POITextExtractor[] getEmbededDocsTextExtractors(POIOLE2TextExtractor ext) throws IOException, OpenXML4JException, XmlException {
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// All the embedded directories we spotted
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ArrayList<Entry> dirs = new ArrayList<Entry>();
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// For anything else not directly held in as a POIFS directory
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ArrayList<InputStream> nonPOIFS = new ArrayList<InputStream>();
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// Find all the embedded directories
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DirectoryEntry root = ext.getRoot();
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if(root == null) {
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throw new IllegalStateException("The extractor didn't know which POIFS it came from!");
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}
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// Find all the embedded directories
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DirectoryEntry root = ext.getRoot();
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if (root == null) {
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throw new IllegalStateException("The extractor didn't know which POIFS it came from!");
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}
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if(ext instanceof ExcelExtractor) {
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// These are in MBD... under the root
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Iterator<Entry> it = root.getEntries();
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while(it.hasNext()) {
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Entry entry = it.next();
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if(entry.getName().startsWith("MBD")) {
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dirs.add(entry);
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}
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}
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} else if(ext instanceof WordExtractor) {
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// These are in ObjectPool -> _... under the root
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try {
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DirectoryEntry op = (DirectoryEntry)
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root.getEntry("ObjectPool");
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Iterator<Entry> it = op.getEntries();
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while(it.hasNext()) {
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Entry entry = it.next();
|
||||
if(entry.getName().startsWith("_")) {
|
||||
dirs.add(entry);
|
||||
}
|
||||
}
|
||||
} catch(FileNotFoundException e) {
|
||||
if (ext instanceof ExcelExtractor) {
|
||||
// These are in MBD... under the root
|
||||
Iterator<Entry> it = root.getEntries();
|
||||
while (it.hasNext()) {
|
||||
Entry entry = it.next();
|
||||
if (entry.getName().startsWith("MBD")) {
|
||||
dirs.add(entry);
|
||||
}
|
||||
}
|
||||
} else if (ext instanceof WordExtractor) {
|
||||
// These are in ObjectPool -> _... under the root
|
||||
try {
|
||||
DirectoryEntry op = (DirectoryEntry) root.getEntry("ObjectPool");
|
||||
Iterator<Entry> it = op.getEntries();
|
||||
while (it.hasNext()) {
|
||||
Entry entry = it.next();
|
||||
if (entry.getName().startsWith("_")) {
|
||||
dirs.add(entry);
|
||||
}
|
||||
}
|
||||
} catch (FileNotFoundException e) {
|
||||
// ignored here
|
||||
}
|
||||
//} else if(ext instanceof PowerPointExtractor) {
|
||||
// Tricky, not stored directly in poifs
|
||||
// TODO
|
||||
} else if(ext instanceof OutlookTextExtactor) {
|
||||
// Stored in the Attachment blocks
|
||||
MAPIMessage msg = ((OutlookTextExtactor)ext).getMAPIMessage();
|
||||
for(AttachmentChunks attachment : msg.getAttachmentFiles()) {
|
||||
if(attachment.attachData != null) {
|
||||
byte[] data = attachment.attachData.getValue();
|
||||
nonPOIFS.add( new ByteArrayInputStream(data) );
|
||||
} else if(attachment.attachmentDirectory != null) {
|
||||
dirs.add(attachment.attachmentDirectory.getDirectory());
|
||||
}
|
||||
}
|
||||
}
|
||||
//} else if(ext instanceof PowerPointExtractor) {
|
||||
// Tricky, not stored directly in poifs
|
||||
// TODO
|
||||
} else if (ext instanceof OutlookTextExtactor) {
|
||||
// Stored in the Attachment blocks
|
||||
MAPIMessage msg = ((OutlookTextExtactor)ext).getMAPIMessage();
|
||||
for (AttachmentChunks attachment : msg.getAttachmentFiles()) {
|
||||
if (attachment.attachData != null) {
|
||||
byte[] data = attachment.attachData.getValue();
|
||||
nonPOIFS.add( new ByteArrayInputStream(data) );
|
||||
} else if (attachment.attachmentDirectory != null) {
|
||||
dirs.add(attachment.attachmentDirectory.getDirectory());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Create the extractors
|
||||
if(dirs.size() == 0 && nonPOIFS.size() == 0){
|
||||
return new POITextExtractor[0];
|
||||
}
|
||||
// Create the extractors
|
||||
if (dirs.size() == 0 && nonPOIFS.size() == 0){
|
||||
return new POITextExtractor[0];
|
||||
}
|
||||
|
||||
ArrayList<POITextExtractor> e = new ArrayList<POITextExtractor>();
|
||||
ArrayList<POITextExtractor> e = new ArrayList<POITextExtractor>();
|
||||
for (Entry dir : dirs) {
|
||||
e.add(createExtractor(
|
||||
(DirectoryNode) dir
|
||||
));
|
||||
e.add(createExtractor((DirectoryNode) dir));
|
||||
}
|
||||
for (InputStream nonPOIF : nonPOIFS) {
|
||||
try {
|
||||
e.add(createExtractor(nonPOIF));
|
||||
e.add(createExtractor(nonPOIF));
|
||||
} catch (IllegalArgumentException ie) {
|
||||
// Ignore, just means it didn't contain
|
||||
// a format we support as yet
|
||||
} catch (XmlException xe) {
|
||||
throw new IOException(xe.getMessage());
|
||||
throw new IOException(xe.getMessage());
|
||||
} catch (OpenXML4JException oe) {
|
||||
throw new IOException(oe.getMessage());
|
||||
throw new IOException(oe.getMessage());
|
||||
}
|
||||
}
|
||||
return e.toArray(new POITextExtractor[e.size()]);
|
||||
}
|
||||
return e.toArray(new POITextExtractor[e.size()]);
|
||||
}
|
||||
|
||||
/**
|
||||
* 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
|
||||
* {@link POITextExtractor} for each embedded file.
|
||||
*/
|
||||
public static POITextExtractor[] getEmbededDocsTextExtractors(@SuppressWarnings("UnusedParameters") POIXMLTextExtractor ext) {
|
||||
throw new IllegalStateException("Not yet supported");
|
||||
}
|
||||
/**
|
||||
* 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
|
||||
* {@link POITextExtractor} for each embedded file.
|
||||
*/
|
||||
@SuppressWarnings("UnusedParameters")
|
||||
public static POITextExtractor[] getEmbededDocsTextExtractors(POIXMLTextExtractor ext) {
|
||||
throw new IllegalStateException("Not yet supported");
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user