package org.kuali.common.util.base;
   
   import static java.lang.String.format;
   
   /**
    * <p>
    * Utility methods for creating {@code IllegalStateException's} and {@code IllegaArgumentException's} with richly formatted error messages.
    * </p>
    * 
   * Example usage:
   * 
   * <pre>
   * throw Exceptions.illegalArgument(&quot;port must be &gt;= %s and &lt;= %s&quot;, 0, 65535);
   * </pre>
   */
  public class Exceptions {
  
  	public static IllegalStateException illegalState(Throwable cause) {
  		return new IllegalStateException(cause);
  	}
  
  	public static IllegalStateException illegalState(String msg) {
  		return new IllegalStateException(msg);
  	}
  
  	public static IllegalStateException illegalState(String msg, Object... args) {
  		return new IllegalStateException(formattedMessage(msg, args));
  	}
  
  	public static IllegalStateException illegalState(Throwable cause, String msg, Object... args) {
  		return new IllegalStateException(formattedMessage(msg, args), cause);
  	}
  
  	public static IllegalArgumentException illegalArgument(Throwable cause) {
  		return new IllegalArgumentException(cause);
  	}
  
  	public static IllegalArgumentException illegalArgument(String msg) {
  		return new IllegalArgumentException(msg);
  	}
  
  	public static IllegalArgumentException illegalArgument(String msg, Object... args) {
  		return new IllegalArgumentException(formattedMessage(msg, args));
  	}
  
  	public static IllegalArgumentException illegalArgument(Throwable cause, String msg, Object... args) {
  		return new IllegalArgumentException(formattedMessage(msg, args), cause);
  	}
  
  	protected static String formattedMessage(String msg, Object... args) {
  		if (args == null || args.length == 0) {
  			return msg;
  		} else {
  			return format(msg, args);
  		}
  	}
  
  }