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package javax.smartcardio;

import java.util.*;


A Smart Card terminal, sometimes referred to as a Smart Card Reader. A CardTerminal object can be obtained by calling CardTerminals.list or CardTerminals.getTerminal(). 
Note that physical card readers with slots for multiple cards are
represented by one CardTerminal object per such slot.

Author: Andreas Sterbenz,  JSR 268 Expert Group
See Also:
Since:  1.6
/**
 * A Smart Card terminal, sometimes referred to as a Smart Card Reader.
 * A CardTerminal object can be obtained by calling
 * {@linkplain CardTerminals#list}
 * or {@linkplain CardTerminals#getTerminal CardTerminals.getTerminal()}.
 *
 * <p>Note that physical card readers with slots for multiple cards are
 * represented by one <code>CardTerminal</code> object per such slot.
 *
 * @see CardTerminals
 * @see TerminalFactory
 *
 * @since   1.6
 * @author  Andreas Sterbenz
 * @author  JSR 268 Expert Group
 */
public abstract class CardTerminal {

    
Constructs a new CardTerminal object.

This constructor is called by subclasses only. Application should call list() or getTerminal() to obtain a CardTerminal object. 
/**
     * Constructs a new CardTerminal object.
     *
     * <p>This constructor is called by subclasses only. Application should
     * call {@linkplain CardTerminals#list list()}
     * or {@linkplain CardTerminals#getTerminal getTerminal()}
     * to obtain a CardTerminal object.
     */
    protected CardTerminal() {
        // empty
    }

    
Returns the unique name of this terminal.

Returns:the unique name of this terminal.
/**
     * Returns the unique name of this terminal.
     *
     * @return the unique name of this terminal.
     */
    public abstract String getName();

    
Establishes a connection to the card.
If a connection has previously established using
the specified protocol, this method returns the same Card object as
the previous call.

Params:
  • protocol – the protocol to use ("T=0", "T=1", or "T=CL"), or "*" to
  connect using any available protocol.
Throws:
Returns:the card the connection has been established with
/**
     * Establishes a connection to the card.
     * If a connection has previously established using
     * the specified protocol, this method returns the same Card object as
     * the previous call.
     *
     * @param protocol the protocol to use ("T=0", "T=1", or "T=CL"), or "*" to
     *   connect using any available protocol.
     *
     * @throws NullPointerException if protocol is null
     * @throws IllegalArgumentException if protocol is an invalid protocol
     *   specification
     * @throws CardNotPresentException if no card is present in this terminal
     * @throws CardException if a connection could not be established
     *   using the specified protocol or if a connection has previously been
     *   established using a different protocol
     * @throws SecurityException if a SecurityManager exists and the
     *   caller does not have the required
     *   {@linkplain CardPermission permission}
     * @return the card the connection has been established with
     */
    public abstract Card connect(String protocol) throws CardException;

    
Returns whether a card is present in this terminal.

Throws:
Returns:whether a card is present in this terminal.
/**
     * Returns whether a card is present in this terminal.
     *
     * @return whether a card is present in this terminal.
     *
     * @throws CardException if the status could not be determined
     */
    public abstract boolean isCardPresent() throws CardException;

    
Waits until a card is present in this terminal or the timeout
expires. If the method returns due to an expired timeout, it returns
false. Otherwise it return true.

If a card is present in this terminal when this
method is called, it returns immediately.

Params:
  • timeout – if positive, block for up to timeout
  milliseconds; if zero, block indefinitely; must not be negative
Throws:
Returns:false if the method returns due to an expired timeout,
  true otherwise.
/**
     * Waits until a card is present in this terminal or the timeout
     * expires. If the method returns due to an expired timeout, it returns
     * false. Otherwise it return true.
     *
     * <P>If a card is present in this terminal when this
     * method is called, it returns immediately.
     *
     * @param timeout if positive, block for up to <code>timeout</code>
     *   milliseconds; if zero, block indefinitely; must not be negative
     * @return false if the method returns due to an expired timeout,
     *   true otherwise.
     *
     * @throws IllegalArgumentException if timeout is negative
     * @throws CardException if the operation failed
     */
    public abstract boolean waitForCardPresent(long timeout) throws CardException;

    
Waits until a card is absent in this terminal or the timeout
expires. If the method returns due to an expired timeout, it returns
false. Otherwise it return true.

If no card is present in this terminal when this
method is called, it returns immediately.

Params:
  • timeout – if positive, block for up to timeout
  milliseconds; if zero, block indefinitely; must not be negative
Throws:
Returns:false if the method returns due to an expired timeout,
  true otherwise.
/**
     * Waits until a card is absent in this terminal or the timeout
     * expires. If the method returns due to an expired timeout, it returns
     * false. Otherwise it return true.
     *
     * <P>If no card is present in this terminal when this
     * method is called, it returns immediately.
     *
     * @param timeout if positive, block for up to <code>timeout</code>
     *   milliseconds; if zero, block indefinitely; must not be negative
     * @return false if the method returns due to an expired timeout,
     *   true otherwise.
     *
     * @throws IllegalArgumentException if timeout is negative
     * @throws CardException if the operation failed
     */
    public abstract boolean waitForCardAbsent(long timeout) throws CardException;

}