Add References to git

info/Minesweeper/MineSweeperSolver/src/minesweeper/solver/utility/Logger.java

@@ -0,0 +1,69 @@
+package minesweeper.solver.utility;
+
+public class Logger {
+	
+	/**
+	 * Nothing gets logged
+	 */
+	public final static Logger NO_LOGGING = new Logger(Level.NONE);
+	
+	public enum Level {
+		DEBUG(1),
+		INFO(2),
+		WARN(3),
+		ERROR(4),
+		ALWAYS(90),
+		NONE(99);
+		
+		private int value;
+		private Level(int value) {
+			this.value = value;
+		}
+	}
+	
+	private final String logName;
+	private final Level logLevel;
+	private final String prefix;
+	
+	public Logger(Level level) {
+		this(level, "");
+	}
+
+	public Logger(Level level, String logName) {
+		this.logLevel = level;
+		this.logName = logName;
+		if (this.logName.isEmpty()) {
+			this.prefix = " ";
+		} else {
+			this.prefix = " " + this.logName + " ";
+		}
+
+	}
+	
+	public void log(Level level, String format, Object... parms) {
+		
+		if (level.value < logLevel.value) {
+			return;
+		}
+		
+		String output;
+		try {
+			output = String.format(format, parms);
+			
+		} catch (Exception e) {  // if it goes wrong show the unformated information
+			StringBuilder sb = new StringBuilder();
+			sb.append(format);
+			sb.append(" Parms:");
+			for (Object parm: parms) {
+				sb.append("[");
+				sb.append(parm);
+				sb.append("]");
+			}
+			output = sb.toString();
+		}
+		
+		System.out.println(level + prefix + output);
+		
+	}
+	
+}