@Override
public Item item(final QueryContext qc, final InputInfo ii) throws QueryException {
checkCreate(qc);
final Path path = toPath(0, qc);
final B64 archive = toB64(exprs[1], qc, false);
final TokenSet hs = entries(2, qc);
try (ArchiveIn in = ArchiveIn.get(archive.input(info), info)) {
while (in.more()) {
final ZipEntry ze = in.entry();
final String name = ze.getName();
if (hs == null || hs.delete(token(name)) != 0) {
final Path file = path.resolve(name);
if (ze.isDirectory()) {
Files.createDirectories(file);
} else {
Files.createDirectories(file.getParent());
Files.write(file, in.read());
}
}
}
} catch (final IOException ex) {
throw ARCH_FAIL_X.get(info, ex);
}
return null;
}
// Take a tree of files starting in a directory in a zip file
// and copy them to a disk directory, recreating the tree.
private int unpackZipFile(
File inZipFile, String directory, String parent, boolean suppressFirstPathElement) {
int count = 0;
if (!inZipFile.exists()) return count;
parent = parent.trim();
if (!parent.endsWith(File.separator)) parent += File.separator;
if (!directory.endsWith(File.separator)) directory += File.separator;
File outFile = null;
try {
ZipFile zipFile = new ZipFile(inZipFile);
Enumeration zipEntries = zipFile.entries();
while (zipEntries.hasMoreElements()) {
ZipEntry entry = (ZipEntry) zipEntries.nextElement();
String name = entry.getName().replace('/', File.separatorChar);
if (name.startsWith(directory)) {
if (suppressFirstPathElement) name = name.substring(directory.length());
outFile = new File(parent + name);
// Create the directory, just in case
if (name.indexOf(File.separatorChar) >= 0) {
String p = name.substring(0, name.lastIndexOf(File.separatorChar) + 1);
File dirFile = new File(parent + p);
dirFile.mkdirs();
}
if (!entry.isDirectory()) {
System.out.println("Installing " + outFile);
// Copy the file
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(outFile));
BufferedInputStream in = new BufferedInputStream(zipFile.getInputStream(entry));
int size = 1024;
int n = 0;
byte[] b = new byte[size];
while ((n = in.read(b, 0, size)) != -1) out.write(b, 0, n);
in.close();
out.flush();
out.close();
// Count the file
count++;
}
}
}
zipFile.close();
} catch (Exception e) {
System.err.println("...an error occured while installing " + outFile);
e.printStackTrace();
System.err.println("Error copying " + outFile.getName() + "\n" + e.getMessage());
return -count;
}
System.out.println(count + " files were installed.");
return count;
}
/**
* Zips byte array.
*
* @param input Input bytes.
* @param initBufSize Initial buffer size.
* @return Zipped byte array.
* @throws IOException If failed.
*/
public static byte[] zipBytes(byte[] input, int initBufSize) throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream(initBufSize);
try (ZipOutputStream zos = new ZipOutputStream(bos)) {
ZipEntry entry = new ZipEntry("");
try {
entry.setSize(input.length);
zos.putNextEntry(entry);
zos.write(input);
} finally {
zos.closeEntry();
}
}
return bos.toByteArray();
}
