private static void unzipEntries(
File folder, ZipInputStream zis, int itemCount, long time, ZipListener listener)
throws IOException, FileNotFoundException {
ZipEntry ze = null;
int item = 0;
while ((ze = zis.getNextEntry()) != null) {
item++;
String fileName = ze.getName();
File newFile = new File(folder, fileName);
LOG.debug("unzip: " + newFile.getAbsoluteFile());
if (ze.isDirectory()) {
if (!newFile.mkdirs()) {
break;
}
continue;
}
if (listener != null) {
int progress =
(item == itemCount) ? 100 : (int) (((double) (item * 100)) / (double) (itemCount));
listener.onUnzipping(fileName, progress);
}
FileOutputStream fos = new FileOutputStream(newFile);
try {
int n;
byte[] buffer = new byte[1024];
while ((n = zis.read(buffer)) > 0) {
fos.write(buffer, 0, n);
if (listener != null && listener.isCanceled()) { // not the best way
throw new IOException("Uncompress operation cancelled");
}
}
} finally {
fos.close();
zis.closeEntry();
}
newFile.setLastModified(time);
}
}
public void unzip(File zipFile, File dir) throws Exception {
InputStream is = null;
OutputStream os = null;
ZipFile zip = null;
try {
zip = new ZipFile(zipFile);
Enumeration<? extends ZipEntry> e = zip.entries();
byte[] buffer = new byte[2048];
int currentEntry = 0;
while (e.hasMoreElements()) {
ZipEntry zipEntry = (ZipEntry) e.nextElement();
File file = new File(dir, zipEntry.getName());
currentEntry++;
if (zipEntry.isDirectory()) {
if (!file.exists()) file.mkdirs();
continue;
}
if (!file.getParentFile().exists()) file.getParentFile().mkdirs();
try {
int bytesLidos = 0;
is = zip.getInputStream(zipEntry);
os = new FileOutputStream(file);
if (is == null)
throw new ZipException("Erro ao ler a entrada do zip: " + zipEntry.getName());
while ((bytesLidos = is.read(buffer)) > 0) os.write(buffer, 0, bytesLidos);
if (listener != null) listener.unzip((100 * currentEntry) / zip.size());
} finally {
if (is != null)
try {
is.close();
} catch (Exception ex) {
}
if (os != null)
try {
os.close();
} catch (Exception ex) {
}
}
}
} finally {
if (zip != null)
try {
zip.close();
} catch (Exception e) {
}
}
}
