/** Returns an InputStream for the image described by this FileInfo. */
public InputStream createInputStream(FileInfo fi) throws IOException, MalformedURLException {
InputStream is = null;
boolean gzip =
fi.fileName != null && (fi.fileName.endsWith(".gz") || fi.fileName.endsWith(".GZ"));
if (fi.inputStream != null) is = fi.inputStream;
else if (fi.url != null && !fi.url.equals("")) is = new URL(fi.url + fi.fileName).openStream();
else {
if (fi.directory.length() > 0 && !fi.directory.endsWith(Prefs.separator))
fi.directory += Prefs.separator;
File f = new File(fi.directory + fi.fileName);
if (gzip) fi.compression = FileInfo.COMPRESSION_UNKNOWN;
if (f == null || f.isDirectory() || !validateFileInfo(f, fi)) is = null;
else is = new FileInputStream(f);
}
if (is != null) {
if (fi.compression >= FileInfo.LZW) is = new RandomAccessStream(is);
else if (gzip) is = new GZIPInputStream(is, 50000);
}
return is;
}
