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

booleancheckUrl(final String link)
check Url 
try {
    URL url = new URL(link);
    URLConnection conn = url.openConnection();
    conn.connect();
    return true;
} catch (Exception e) {
return false;
...
intcheckURL(String _url)
check URL 
int ans = 0;
int dots = (numberOfDots(_url)); 
if (dots >= 3)
    ans += dots * 5;
ans += suspiciousURL(_url) * 2;
if (hasIP(_url)) {
    ans += 80;
if (hasEmbeddedDomain(_url))
    ans += 80;
if (outOfPositionTLD(_url))
    ans += 40;
ans += senstiveWords(_url) * 10;
return ans;
booleancheckUrl(String inputUrlString)
check Url 
URL url = new URL(inputUrlString);
return checkUrl(url);
intcheckUrl(String url, int timeout)
check Url 
try {
    URL url2 = null;
    HttpURLConnection conn = null;
    url2 = new URL(url);
    conn = (HttpURLConnection) url2.openConnection();
    long len = conn.getContentLength();
    conn.setConnectTimeout(timeout);
    return conn.getResponseCode();
...
URLcheckURL(URL check)
check URL 
URL result = null;
if (check != null) {
    try {
        InputStream is = check.openStream();
        is.close();
        result = check;
    } catch (IOException e) {
return result;
voidcheckUrl(URL url, URL baseUrl)
check Url 
if (baseUrl.getHost() == null) {
    throw new RuntimeException("base URL is null");
if (!baseUrl.getHost().equalsIgnoreCase(url.getHost())) {
    throw new RuntimeException("Domain of URL " + url + " doesn't match base URL " + baseUrl);
StringcheckURLAvailable(String targetUrl)
check URL Available 
try {
    URL url = new URL(targetUrl);
    URLConnection urlConnection = url.openConnection();
    HttpURLConnection.setFollowRedirects(true);
    HttpURLConnection httpURLConnection = (HttpURLConnection) urlConnection;
    httpURLConnection.setRequestMethod("HEAD");
    if (httpURLConnection.getResponseCode() >= MIN_HTTP_VALID_CODE
            && httpURLConnection.getResponseCode() < MAX_HTTP_VALID_CODE) {
...
booleancheckUrlImage(final String url)
Blocking. 
try {
    final HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
    return connection.getResponseCode() == 200 && connection.getContentType() != null
            && connection.getContentType().contains("image");
} catch (Exception e) {
    return false;
booleancheckURLStatus(String pURL)
check URL Status 
URL url = null;
HttpURLConnection conn = null;
try {
    url = new URL(pURL);
    conn = (HttpURLConnection) url.openConnection();
    conn.connect();
    return true;
} catch (MalformedURLException e) {
...
booleancheckURLValidProtocol(URL url)
Returns true if the supplied URL is using one of the formats supported by open-delta - the supported formats are http, ftp and file. 
return (url.getProtocol().equalsIgnoreCase("http")
        || (url.getProtocol().equalsIgnoreCase("ftp") || (url.getProtocol().equalsIgnoreCase("file"))));