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Add Java example (#439)

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* Added Java example

* fix typo

---------

Co-authored-by: Martin Cech <emulatorer@gmail.com>
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Bernhard Haumacher 2024-02-05 19:05:14 +01:00 committed by GitHub
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@ -175,3 +175,42 @@ fi
echo "$return_value"
```
### Java
Code assumes that you have added `disposable_email_blocklist.conf` next to your class as classpath resource.
```Java
private static final Set<String> DISPOSABLE_EMAIL_DOMAINS;
static {
Set<String> domains = new HashSet<>();
try (BufferedReader in = new BufferedReader(
new InputStreamReader(
EMailChecker.class.getResourceAsStream("disposable_email_blocklist.conf"), StandardCharsets.UTF_8))) {
String line;
while ((line = in.readLine()) != null) {
line = line.trim();
if (line.isEmpty()) {
continue;
}
domains.add(line);
}
} catch (IOException ex) {
LOG.error("Failed to load list of disposable email domains.", ex);
}
DISPOSABLE_EMAIL_DOMAINS = domains;
}
public static boolean isDisposable(String email) throws AddressException {
InternetAddress contact = new InternetAddress(email);
return isDisposable(contact);
}
public static boolean isDisposable(InternetAddress contact) throws AddressException {
String address = contact.getAddress();
int domainSep = address.indexOf('@');
String domain = (domainSep >= 0) ? address.substring(domainSep + 1) : address;
return DISPOSABLE_EMAIL_DOMAINS.contains(domain);
}
```