Java Utililty Methods Zip File Check

List of utility methods to do Zip File Check

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Description

The list of methods to do Zip File Check are organized into topic(s).

Method

booleanisZippedFile(File file)
Returns true if the input file is a zipped file. 
return isGzipFile(file) || isZipFile(file) || isBZipFile(file) || isUnixCompressFile(file);
booleanisZipStream(ByteArrayInputStream input)
is Zip Stream 
boolean isZip = true;
int length = ZIP_HEADER.length;
try {
    input.mark(length + 1);
    for (int i = 0; i < length; i++) {
        byte read = (byte) input.read();
        if (read != ZIP_HEADER[i]) {
            isZip = false;
...
booleanisZipStream(InputStream in)
The method to test if a input stream is a zip archive. 
if (!in.markSupported()) {
    throw new IOException("The stream does not support mark.");
boolean isZip = true;
try {
    in.mark(MAGIC.length);
    for (int i = 0; i < MAGIC.length; i++) {
        if (MAGIC[i] != (byte) in.read()) {
...
booleanisZipValid(File file)
is Zip Valid 
try (ZipFile zipFile = new ZipFile(file)) {
    return true;
} catch (IOException ioe) {
    return false;
booleanisZipValid(final File zip)
Check if the given zip file is valid. 
ZipFile zipfile = null;
try {
    zipfile = new ZipFile(zip);
    return true;
} catch (ZipException e) {
    return false;
} catch (IOException e) {
    return false;
...