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package org.glassfish.config.support.datatypes;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.config.DataType;
import org.jvnet.hk2.config.ValidationException;
/** Represents a network port on a machine. It's modeled as a functional class.
* @author केदार (km@dev.java.net)
*/
@Service
public final class Port implements DataType {
/** Checks if given string represents a port. Does not allow any value other
* than those between 0 and 65535 (both inclusive).
* @param value represents the value of the port.
* @throws org.jvnet.hk2.config.ValidationException if the value does not represent
* integer value.
*/
public void validate(String value) throws ValidationException {
if (value == null)
throw new ValidationException("null value is not of type Port");
if (NonNegativeInteger.isTokenized(value))
return; //a token is always valid
try {
int port = Integer.parseInt(value);
if (port < 0 || port > 0xFFFF) { //taken from ServerSocket.java
String msg = "value: " + port + " not applicable for Port [0, " + 0xFFFF + "] data type";
throw new ValidationException(msg);
}
} catch(NumberFormatException e) {
String msg = value + " does not represent an Integer";
throw new ValidationException(msg);
}
}
}