42 lines
1.0 KiB
Java
42 lines
1.0 KiB
Java
package envoy.util;
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import java.util.regex.Pattern;
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/**
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* Implements contact name validation.
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*
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* @author Kai S. K. Engelbart
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* @since Envoy Common v0.1-beta
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*/
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public final class Bounds {
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private Bounds() {}
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/**
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* The regular expression against which contact names should be validated.
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*
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* @since Envoy Common v0.1-beta
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*/
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public static final Pattern CONTACT_NAME_PATTERN = Pattern.compile("^\\w[a-zA-Z0-9-]{2,15}$");
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// KAI: Trust of Chain - das berühmte Konzept aus der Kryptographie
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/**
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* @param contactName the contact name to validate
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* @return {@code true} if the given contact name is valid
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* @since Envoy Common v0.1-beta
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*/
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public static boolean isValidContactName(String contactName) {
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return CONTACT_NAME_PATTERN.matcher(contactName).matches();
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}
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/**
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* @return the maximum size allowed for a user/ group name.
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* @apiNote has to be updated manually if {@link Bounds#CONTACT_NAME_PATTERN} gets updated.
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* @since Envoy Common v0.1-beta
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*/
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public static int maximumUsernameSize() {
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return 16;
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}
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}
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