Example usage for org.apache.commons.io.filefilter PrefixFileFilter PrefixFileFilter

Introduction

In this page you can find the example usage for org.apache.commons.io.filefilter PrefixFileFilter PrefixFileFilter.

Prototype

public PrefixFileFilter(List prefixes, IOCase caseSensitivity) 

Source Link

Document

Constructs a new Prefix file filter for a list of prefixes specifying case-sensitivity.

Usage

From source file:de.ee.hezel.PDFCorpusAnalyser.java

/**
 * Run thru the given folders and find pdf document which have the same name.
 * For every pair, a PDFInfoHolder objects gets created.
 * /*from w  w  w.  j av a  2 s  . com*/
 * @param pdfs1 for the 1st directory
 * @param pdfs2 for the 2nd directory
 * @param prefix 
 * @return list of all pdf pairs
 */
public static Set<PDFInfoHolder> getSimplePDFInfoHolders(File pdfs1, File pdfs2, String prefix) {
    Set<PDFInfoHolder> pdfInfoHolders = new HashSet<PDFInfoHolder>();

    // are those valid pathes
    if (pdfs1 != null && pdfs2 != null && pdfs1.isDirectory() && pdfs2.isDirectory()) {
        // create a filter to only get pdf files
        List<FilenameFilter> filters = new ArrayList<FilenameFilter>();
        if (null != prefix && prefix.length() > 0) {
            PrefixFileFilter filter = new PrefixFileFilter(prefix, IOCase.SYSTEM);
            filters.add(filter);
        }
        filters.add(new SuffixFileFilter(".pdf", IOCase.INSENSITIVE));
        FilenameFilter filter = new AndFileFilter(filters);

        //get all pdf file sin this folder
        String[] pdfDocuments1 = pdfs1.list(filter);

        for (int i = 0; i < pdfDocuments1.length; i++) {
            // get the pdf file name
            String pdfFilename1 = pdfDocuments1[i];

            // get the path for both pdf files
            File pdfFile1 = new File(pdfs1, pdfFilename1);
            File pdfFile2 = new File(pdfs2, pdfFilename1);

            // bind them together in a PDFInfoHolder objects
            PDFInfoHolder newPDFInfoHolder = new PDFInfoHolder(pdfFile1, pdfFile2);

            // remember them all
            pdfInfoHolders.add(newPDFInfoHolder);
        }

        // TODO what should happen if there are less reference documents than new generated ones
    } else {
        log.error("The path is not valid.");
    }

    return pdfInfoHolders;
}

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