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 at.o2xfs.common.Bit;
  import at.o2xfs.common.Bytes;
  import at.o2xfs.common.Hex;
  
  public class CVRule {
  
  	private byte[] rule;
  
  	public CVRule(byte[] rule) {
  		if (rule.length != 2) {
  			throw new IllegalArgumentException("Illegal CVRule: "
  					+ Hex.encode(rule));
  		}
  		this.rule = Bytes.copy(rule);
  	}
  
  	/**
  	 * Fail cardholder verification if this CVM is unsuccessful
  	 */
  	public boolean failIfUnsuccessful() {
  		return !Bit.isSet(rule[0], Bit.B7);
  	}
  
  	/**
  	 *
  	 * @return
  	 */
  	public int getCVMCode() {
  		return Bytes.toInt(rule[0]) & 0x3F;
  	}
  
  	public int getCVMConditionCode() {
  		return Bytes.toInt(rule[1]);
  	}
  
  	@Override
  	public String toString() {
  		return Hex.encode(rule);
  	}
  }