Java Utililty Methods URL Value Check

List of utility methods to do URL Value Check

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Description

The list of methods to do URL Value Check are organized into topic(s).

Method

booleanisURL(String token)
Returns true if the input token is a URL, and false otherwise. 
try {
    URL url = new URL(token);
    return true;
} catch (MalformedURLException e) {
    return false;
booleanisUrl(String value)
is Url 
try {
    new java.net.URL(value);
} catch (MalformedURLException e) {
    return false;
return true;
booleanisURLAccessible(String URL)
Finds out whether a URL returns HTTP OK or not. 
try {
    HttpURLConnection.setFollowRedirects(false);
    HttpURLConnection connection = (HttpURLConnection) new URL(URL).openConnection();
    connection.setRequestMethod("HEAD");
    return (connection.getResponseCode() == HttpURLConnection.HTTP_OK);
} catch (Exception e) {
    return false;
booleanisURLAvailable(String url, int timeout)
is URL Available 
try {
    return isURLAvailable(new URL(url), timeout);
} catch (MalformedURLException e) {
    e.printStackTrace();
    return false;
booleanisUrlAvailable(URL url, Proxy proxy)
Checks whether the specified URL points to a valid resource. 
if (url != null) {
    if (url.getProtocol().equalsIgnoreCase("http") || url.getProtocol().equalsIgnoreCase("https")) {
        HttpURLConnection.setFollowRedirects(true);
        HttpURLConnection conn = null;
        if (proxy != null) {
            conn = (HttpURLConnection) url.openConnection(proxy);
        } else {
            conn = (HttpURLConnection) url.openConnection();
...
booleanisUrlDownWithRetries(String url, long timeoutMs, long retryDelayMs)
Returns true if the URL status code is not 200. 
return getUrlContentWithRetries(url, timeoutMs, retryDelayMs, true) == null;
booleanisUrlExists(String url)
is Url Exists 
try {
    URL urlObject = new URL(url);
    HttpURLConnection huc = (HttpURLConnection) urlObject.openConnection();
    huc.setRequestMethod("HEAD");
    huc.connect();
    return huc.getResponseCode() == 200;
} catch (IOException ignored) {
return false;
booleanisURLExists(String URLName)
is URL Exists 
try {
    if (!URLName.toUpperCase().contains("HTTP"))
        URLName = "http://" + URLName;
    URL url = new URL(URLName);
    System.setProperty("java.net.useSystemProxies", "true");
    HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();
    urlConn.setConnectTimeout(9000);
    urlConn.setReadTimeout(9000);
...
booleanisUrlInJar(URL url)
is Url In Jar 
return url == null ? false : url.toString().startsWith("jar:");
booleanisUrlResponding(String url)
is Url Responding 
try {
    return isUrlResponding(new URL(url));
} catch (MalformedURLException e) {
return false;