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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » com.sun.io.j2me.apdu   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    com.sun.io.j2me.apdu.Cad Cad class Cad (Code) The Cad class maintains the context for the client (terminal) side of the terminal CAD connection. This class is responsible for sending APDUs to the card, receiving back the responses and automatically receiving a response if status '61 XX' is received from the card. Inner Class :class TempByteArray Field Summary  boolean SIMPresent      Indicates if slot is the SAT slot and a SIM is installed on it. Constructor Summary   Cad(int slot)      Constructor for CADClient. Method Summary  void clean()      Does cleaning of the object.  void closeChannel(int channel)      This method is used to close connection with the card.  byte[] exchangeApdu(Handle h, byte[] commandAPDU)      Exchange an Apdu with a CAD. Parameters:   h - Handle of the connection. Parameters:   commandAPDU - APDU data in byte array form.  void freeSystemResources()      Frees up the resource that was used by this slot.  byte[] getATR()      This method returns the ATR received from the card that this CadClient object is used to communicate with. ATR information received from the card at startup orreset. public  int getCardSessionId()      Returns the card session identifier.  byte[] getFCI()      This method returns the FCI received from the card.  void initACL()      Initializes ACL for the slot.  boolean isAlive()      Checks if the the connection is still live or not.  int selectApplication(boolean forSAT, byte[] selectAPDU)      This method is called when there is a connection creation is in progress and specifically card application selection is required. This method also does the channel management part. Field Detail SIMPresent boolean SIMPresent(Code) Indicates if slot is the SAT slot and a SIM is installed on it. This flag is set in Cad.selectApplication. It is cleared when Cad.isAlive detects the death of connection or Cad.getATR is not able to reset the card. Constructor Detail Cad Cad(int slot) throws IOException(Code) Constructor for CADClient. Parameters:   slot - Global slot number throws:   IOException - if there any problems in opening the socket orstreams or powering up the card. Method Detail clean void clean()(Code) Does cleaning of the object. closeChannel void closeChannel(int channel) throws IOException(Code) This method is used to close connection with the card. If the channel number passed to this method is for basic channel then the basic channel is marked as available and nothing is communicated with the card. If the channel is not the basic channel, a request to close the channel is sent to the card. Parameters:   channel - channel number exception:   IOException - if a communication error happens exchangeApdu byte[] exchangeApdu(Handle h, byte[] commandAPDU) throws IOException(Code) Exchange an Apdu with a CAD. Parameters:   h - Handle of the connection. Parameters:   commandAPDU - APDU data in byte array form. response APDU data in byte array form. exception:   InterruptedIOException - if connection was closed in theother thread. exception:   IOException - if a communication error happens whilecommunicating with the CAD. freeSystemResources void freeSystemResources()(Code) Frees up the resource that was used by this slot. This method is used only in case of error. IOException is ignored. getATR byte[] getATR()(Code) This method returns the ATR received from the card that this CadClient object is used to communicate with. ATR information received from the card at startup orreset. In case of I/O troubles returns null. getCardSessionId public int getCardSessionId()(Code) Returns the card session identifier. This number is different for different card sessions. the card session identifier getFCI byte[] getFCI()(Code) This method returns the FCI received from the card. FCI information received from the card at selectApplication. initACL void initACL()(Code) Initializes ACL for the slot. isAlive boolean isAlive()(Code) Checks if the the connection is still live or not. true if the connection is alive selectApplication int selectApplication(boolean forSAT, byte[] selectAPDU) throws IOException(Code) This method is called when there is a connection creation is in progress and specifically card application selection is required. This method also does the channel management part. If basic channel is available for use, this method tries to select the target application on the basic channel. Otherwise, it requests the card for the channel and attempts to select the application on that particular channel. If the selection is successful, this method returns the logical channel reserved for communicating with the selected card application. Parameters:   forSAT - true if selection is made for SAT connection Parameters:   selectAPDU - byte encoded selection APDU exception:   ConnectionNotFoundException - when selection is not successful exception:   IOException - if no channel is available for communicationestablishment or there are communication problems. exception:   IllegalArgumentException - if bad APDU provided. response apdu from the select application request Methods inherited from java.lang.Object public boolean equals(Object obj)(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)