Example usage for org.apache.poi.poifs.filesystem DirectoryNode getEntryNames

Introduction

In this page you can find the example usage for org.apache.poi.poifs.filesystem DirectoryNode getEntryNames.

Prototype

public Set<String> getEntryNames() 

Source Link

Document

get the names of all the Entries contained directly in this instance (in other words, names of children only; no grandchildren etc).

Usage

From source file:org.apache.tika.parser.wordperfect.QPWTextExtractor.java

License:Apache License

@SuppressWarnings("resource")
public void extract(InputStream input, XHTMLContentHandler xhtml, Metadata metadata)
        throws IOException, SAXException, TikaException {

    POIFSFileSystem pfs = new POIFSFileSystem(input);
    DirectoryNode rootNode = pfs.getRoot();
    if (rootNode == null || !rootNode.hasEntry(OLE_DOCUMENT_NAME)) {
        throw new UnsupportedFormatException("Unsupported QuattroPro file format. " + "Looking for OLE entry \""
                + OLE_DOCUMENT_NAME + "\". Found: " + rootNode.getEntryNames());
    }/*  ww  w.j  av  a  2  s  .co m*/

    //TODO shall we validate and throw warning/error if the file does not 
    //start with a BOF and ends with a EOF?
    xhtml.startElement("p");
    try (WPInputStream in = new WPInputStream(pfs.createDocumentInputStream(OLE_DOCUMENT_NAME))) {
        Context ctx = new Context(in, xhtml, metadata);
        while (hasNext(in)) {
            ctx.type = in.readWPShort();
            ctx.bodyLength = in.readWPShort();
            Extractor extractor = EXTRACTORS.get(ctx.type);
            if (extractor != null) {
                extractor.extract(ctx);
            } else {
                // Use DEBUG to find out what we are ignoring
                //                    Extractor.DEBUG.extract(ctx);
                Extractor.IGNORE.extract(ctx);
            }
        }
    }
    xhtml.endElement("p");
}

---