/**
* 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();
}
static void testCopyFileToOuputStream(int size) throws IOException {
Path source = createTempFile("blah", null);
try {
byte[] b = new byte[size];
rand.nextBytes(b);
write(source, b);
ByteArrayOutputStream out = new ByteArrayOutputStream();
long n = copy(source, out);
assertTrue(n == size);
assertTrue(out.size() == size);
byte[] read = out.toByteArray();
assertTrue(Arrays.equals(read, b));
// check output stream is open
out.write(0);
assertTrue(out.size() == size + 1);
} finally {
delete(source);
}
}