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25 
26 package sun.security.smartcardio;
27 
28 import java.security.*;
29 
30 import javax.smartcardio.*;
31 import static sun.security.util.SecurityConstants.PROVIDER_VER;
32 
33 /**
34  * Provider object for PC/SC.
35  *
36  * @since   1.6
37  * @author  Andreas Sterbenz
38  */
39 public final class SunPCSC extends Provider {
40 
41     private static final long serialVersionUID = 6168388284028876579L;
42 
43     private static final class ProviderService extends Provider.Service {
44 
ProviderService(Provider p, String type, String algo, String cn)45         ProviderService(Provider p, String type, String algo, String cn) {
46             super(p, type, algo, cn, null, null);
47         }
48 
49         @Override
newInstance(Object ctrParamObj)50         public Object newInstance(Object ctrParamObj)
51             throws NoSuchAlgorithmException {
52             String type = getType();
53             String algo = getAlgorithm();
54             try {
55                 if (type.equals("TerminalFactory") &&
56                     algo.equals("PC/SC")) {
57                     return new SunPCSC.Factory(ctrParamObj);
58                 }
59             } catch (Exception ex) {
60                 throw new NoSuchAlgorithmException("Error constructing " +
61                     type + " for " + algo + " using SunPCSC", ex);
62             }
63             throw new ProviderException("No impl for " + algo +
64                 " " + type);
65         }
66     }
67 
SunPCSC()68     public SunPCSC() {
69         super("SunPCSC", PROVIDER_VER, "Sun PC/SC provider");
70 
71         final Provider p = this;
72         AccessController.doPrivileged(new PrivilegedAction<Void>() {
73             public Void run() {
74                 putService(new ProviderService(p, "TerminalFactory",
75                            "PC/SC", "sun.security.smartcardio.SunPCSC$Factory"));
76                 return null;
77             }
78         });
79     }
80 
81     public static final class Factory extends TerminalFactorySpi {
Factory(Object obj)82         public Factory(Object obj) throws PCSCException {
83             if (obj != null) {
84                 throw new IllegalArgumentException
85                     ("SunPCSC factory does not use parameters");
86             }
87             // make sure PCSC is available and that we can obtain a context
88             PCSC.checkAvailable();
89             PCSCTerminals.initContext();
90         }
91         /**
92          * Returns the available readers.
93          * This must be a new object for each call.
94          */
engineTerminals()95         protected CardTerminals engineTerminals() {
96             return new PCSCTerminals();
97         }
98     }
99 
100 }
101