updates and more fixes

Author: JongChern

ShimmerBluetoothManager/src/main/java/com/shimmerresearch/managers/bluetoothManager/ShimmerBluetoothManager.java

@@ -494,6 +494,17 @@ public ShimmerDevice getShimmerDeviceBtConnected(String connectionHandle){
 		return shimmerDevice;
 	}
 
+	public boolean checkIfAlgoEnabledonAnyConnectedDevice(String algoName) {
+		for (String comPort:mMapOfBtConnectedShimmers.keySet()) {
+			ShimmerDevice device = getShimmerDeviceBtConnected(comPort);
+			boolean algoenabled = device.isAlgorithmEnabled(algoName);
+			if(algoenabled) {
+				return true;
+			}
+		}
+		return false;		
+	}
+	
 	public ShimmerDevice getShimmerDeviceBtConnectedFromMac(String macAddress){
 		Iterator<ShimmerDevice> iterator = mMapOfBtConnectedShimmers.values().iterator();
 		while(iterator.hasNext()){

ShimmerDriver/src/main/java/com/shimmerresearch/driverUtilities/UtilShimmer.java

@@ -29,6 +29,7 @@
 import java.util.Map.Entry;
 import java.util.Random;
 import java.util.TimeZone;
+import java.util.regex.Pattern;
 
 import org.apache.commons.lang3.ArrayUtils;
 
@@ -938,7 +939,19 @@ public int compare(Entry<Double, Double> o1,
         }
         return new ArrayList<Double>(sortedMap.keySet());
     }
-
+	// Regex breakdown:
+    // ^          : Start of string
+    // [0-9a-fA-F]{2} : Two hex characters
+    // ( (:[0-9a-fA-F]{2}){5} | ([0-9a-fA-F]{2}){5} ) : Either 5 groups preceded by colons OR 5 groups with nothing
+    // $          : End of string
+    private static final String MAC_REGEX = "^([0-9a-fA-F]{2})((:[0-9a-fA-F]{2}){5}|([0-9a-fA-F]{2}){5})$";
+    private static final Pattern MAC_PATTERN = Pattern.compile(MAC_REGEX);
+
+    public static boolean isValidMacAddress(String mac) {
+        if (mac == null) return false;
+        return MAC_PATTERN.matcher(mac).matches();
+    }
+    
 	public static boolean isValidMac(String mac) {
 		if(mac==null){
 			return false;
@@ -954,7 +967,7 @@ public static boolean isValidMac(String mac) {
 
 		return true;
 	}
-
+	
 	public static String getDayString(int dayIndex) {
 		switch (dayIndex) {
 		    case Calendar.SUNDAY: