content: /*
   * Copyright (c) 2017, Andreas Fagschlunger. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   *   - Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   *
   *   - Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
   * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  package at.o2xfs.emv.cvm;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import at.o2xfs.common.Hex;
  import at.o2xfs.emv.cvm.impl.AndSignatureCVMethod;
  import at.o2xfs.emv.cvm.impl.EncipheredPINByICC;
  import at.o2xfs.emv.cvm.impl.FailCVMethod;
  import at.o2xfs.emv.cvm.impl.NoCVMRequiredCVMethod;
  import at.o2xfs.emv.cvm.impl.OnlinePINCVMethod;
  import at.o2xfs.emv.cvm.impl.PlaintextPINAndSignatureCVMethod;
  import at.o2xfs.emv.cvm.impl.PlaintextPINCVMethod;
  import at.o2xfs.emv.cvm.impl.SignatureCVMethod;
  
  public class CVMethods {
  
  	private static final Map<Integer, CVMethod> METHODS;
  
  	static {
  		METHODS = new HashMap<Integer, CVMethod>();
  		addCVMethod(CVMCode.FAIL_CVM_PROCESSING, new FailCVMethod());
  		addCVMethod(CVMCode.PLAINTEXT_PIN_BY_ICC, new PlaintextPINCVMethod());
  		addCVMethod(CVMCode.ENCIPHERED_PIN_VERIFIED_ONLINE,
  				new OnlinePINCVMethod());
  		addCVMethod(CVMCode.PLAINTEXT_PIN_BY_ICC_AND_SIGNATURE,
  				new PlaintextPINAndSignatureCVMethod());
  		addCVMethod(CVMCode.ENCIPHERED_PIN_BY_ICC, new EncipheredPINByICC());
  		addCVMethod(CVMCode.ENCIPHERED_PIN_BY_ICC_AND_SIGNATURE,
  				new AndSignatureCVMethod(new EncipheredPINByICC()));
  		addCVMethod(CVMCode.SIGNATURE, new SignatureCVMethod());
  		addCVMethod(CVMCode.NO_CVM_REQUIRED, new NoCVMRequiredCVMethod());
  	}
  
  	private CVMethods() {
  		throw new AssertionError();
  	}
  
  	public static void addCVMethod(int cvmCode, CVMethod cvMethod)
  			throws IllegalStateException {
  		if (cvMethod == null) {
  			throw new NullPointerException("cvMethod must not be null");
  		}
  		if (METHODS.containsKey(Integer.valueOf(cvmCode))) {
  			throw new IllegalStateException("CVMCode " + Hex.encode(cvmCode)
  					+ " already assigned");
  		}
  		METHODS.put(Integer.valueOf(cvmCode), cvMethod);
  	}
  
  	public static CVMethod getCVMethod(int cvmCode)
  			throws NoSuchCVMethodException {
  		CVMethod cvMethod = METHODS.get(Integer.valueOf(cvmCode));
  		if (cvMethod == null) {
  			throw new NoSuchCVMethodException(cvmCode);
  		}
  		return cvMethod;
  	}
  
  }