/* @see loci.formats.FormatReader#initFile(String) */
protected void initFile(String id) throws FormatException, IOException {
super.initFile(id);
reader = new ImageReader();
reader.setMetadataOptions(getMetadataOptions());
reader.setMetadataFiltered(isMetadataFiltered());
reader.setOriginalMetadataPopulated(isOriginalMetadataPopulated());
reader.setNormalized(isNormalized());
reader.setMetadataStore(getMetadataStore());
// NB: We need a raw handle on the ZIP data itself, not a ZipHandle.
IRandomAccess rawHandle = Location.getHandle(id, false, false);
in = new RandomAccessInputStream(rawHandle, id);
ZipInputStream zip = new ZipInputStream(in);
while (true) {
ZipEntry ze = zip.getNextEntry();
if (ze == null) break;
ZipHandle handle = new ZipHandle(id, ze);
Location.mapFile(ze.getName(), handle);
mappedFiles.add(ze.getName());
}
ZipHandle base = new ZipHandle(id);
reader.setId(base.getEntryName());
metadataStore = reader.getMetadataStore();
core = reader.getCoreMetadata();
metadata = reader.getGlobalMetadata();
base.close();
}
/**
* Gets an IRandomAccess object that can read from or write to the given file.
*
* @see IRandomAccess
*/
public static IRandomAccess getHandle(String id, boolean writable, boolean allowArchiveHandles)
throws IOException {
LOGGER.trace("getHandle(id = {}, writable = {})", id, writable);
IRandomAccess handle = getMappedFile(id);
if (handle == null) {
LOGGER.trace("no handle was mapped for this ID");
String mapId = getMappedId(id);
if (id.startsWith("http://")) {
handle = new URLHandle(mapId);
} else if (allowArchiveHandles && ZipHandle.isZipFile(id)) {
handle = new ZipHandle(mapId);
} else if (allowArchiveHandles && GZipHandle.isGZipFile(id)) {
handle = new GZipHandle(mapId);
} else if (allowArchiveHandles && BZip2Handle.isBZip2File(id)) {
handle = new BZip2Handle(mapId);
} else {
handle = new NIOFileHandle(mapId, writable ? "rw" : "r");
}
}
LOGGER.trace("Location.getHandle: {} -> {}", id, handle);
return handle;
}
@Test
public void testZipTypeDetection() throws IOException {
File invalidFile = File.createTempFile("invalid", ".zip");
invalidFile.deleteOnExit();
assertEquals(ZipHandle.isZipFile(invalidFile.getAbsolutePath()), false);
}