added ev3dev-lang. motor class implemented only to get address, only...

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "ev3dev-lang"]
+	path = ev3dev-lang
+	url = https://github.com/ev3dev/ev3dev-lang.git

src/main/java/ev3dev/EV3.java

@@ -14,10 +14,10 @@ public class EV3 {
 	public static final String SYSTEM_CLASS_PATH = "/sys/class/";
 
 	/***
-	 * Reads the variable of the class specified.
+	 * Reads the property of the class specified.
 	 * @param class_name The class name
-	 * @param variable
-	 * @return The variable of the class.
+	 * @param variable The property name of the class.
+	 * @return The value of the property
 	 * @throws FileNotFoundException If the specified class isn't exist.
 	 * @throws IOException If the API couldn't read the class's variable
 	 * @throws AccessControlException If you are trying to write to a read-only variable, read from a write-only variable
@@ -50,6 +50,43 @@ public static String read(String class_name, String variable) throws FileNotFoun
 		return sb.toString();
 	}
 
+	/***
+	 * Reads the property of the class & subclass specified.
+	 * @param class_name The class name.
+	 * @param subclass The Sub-class name.
+	 * @param variable The property name of the class
+	 * @return The value of the property
+	 * @throws FileNotFoundException If the specified class isn't exist.
+	 * @throws IOException If the API couldn't read the class's variable
+	 * @throws AccessControlException If you are trying to write to a read-only variable, read from a write-only variable
+	 */
+	public static String read(String class_name, String subclass, String variable) throws FileNotFoundException, IOException, AccessControlException{
+		return read(class_name, subclass + "/" + variable);
+	}
+
+	/***
+	 * Writes the property of the class & subclass specified.
+	 * @param class_name The class name.
+	 * @param subclass The Sub-class name.
+	 * @param variable The property name of the class
+	 * @param new_value The new value of the property
+	 * @throws FileNotFoundException If the specified class isn't exist.
+	 * @throws IOException If the API couldn't read the class's variable
+	 * @throws AccessControlException If you are trying to write to a read-only variable, read from a write-only variable
+	 */
+	public static void write(String class_name, String subclass, String variable, String new_value) throws FileNotFoundException, AccessControlException{
+		write(class_name, subclass + "/" + variable, new_value);
+	}
+
+	/***
+	 * Writes the property of the class specified.
+	 * @param class_name The class name.
+	 * @param variable The property name of the class
+	 * @param new_value The new value of the property
+	 * @throws FileNotFoundException If the specified class isn't exist.
+	 * @throws IOException If the API couldn't read the class's variable
+	 * @throws AccessControlException If you are trying to write to a read-only variable, read from a write-only variable
+	 */
 	public static void write(String class_name, String variable, String new_value) throws FileNotFoundException, AccessControlException{
 		PrintWriter out = new PrintWriter(SYSTEM_CLASS_PATH + class_name + "/" + variable);
 		class_name = class_name.toLowerCase();
@@ -59,4 +96,10 @@ public static void write(String class_name, String variable, String new_value) t
 		out.flush();
 		out.close();
 	}
+
+	public static int getNumbersOfSubClass(String class_name){
+		File file = new File(SYSTEM_CLASS_PATH + class_name);
+		File[] files = file.listFiles();
+		return files == null ? -1 : files.length;
+	}
 }

src/main/java/ev3dev/TestStart.java

@@ -0,0 +1,21 @@
+package ev3dev;
+
+import ev3dev.exception.InvalidPortException;
+import ev3dev.hardware.LegoPort;
+
+public class TestStart {
+
+	public static void main(String[] args) throws InvalidPortException {
+		LegoPort port;
+		for (int i = 0; i <= 7; i++){
+			port = new LegoPort(i);
+			System.out.println(
+					"\nAddress: " + port.getAddress() +
+					"\nDriver Nm: " + port.getDriverName() +
+					"\nMode: " + port.getMode() +
+					"\nStatus: " + port.getStatus()
+					);
+		}
+	}
+
+}

src/main/java/ev3dev/exception/InvalidPortException.java

@@ -0,0 +1,32 @@
+package ev3dev.exception;
+
+/***
+ * This exception is thrown if:<br>
+ * <b>LegoPort</b> port is lower than 0 or higher than 7<br>
+ * <b>TachoMotor</b> port number does not found.
+ * @author Anthony
+ *
+ */
+public class InvalidPortException extends Exception {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 1L;
+
+	public InvalidPortException(){
+		super();
+	}
+
+	public InvalidPortException(String message){
+		super(message);
+	}
+
+	public InvalidPortException(String message, Throwable cause){
+		super(message, cause);
+	}
+
+	public InvalidPortException(Throwable cause){
+		super(cause);
+	}
+}

src/main/java/ev3dev/hardware/Device.java

@@ -1,8 +1,19 @@
 package ev3dev.hardware;
 
 public abstract class Device {
+
+	private LegoPort port;
+
+	public Device(){
+		//TODO the available devices should be enumerated until a suitable device is found
+	}
 
 	public Device(LegoPort port){
-
+		this.port = port;
+	}
+
+	public boolean isConnected(){
+		//TODO I don't understand around the Device class... :(
+		return true;
 	}
 }

src/main/java/ev3dev/hardware/LegoPort.java

@@ -1,36 +1,100 @@
 package ev3dev.hardware;
 
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.security.AccessControlException;
+
 import ev3dev.EV3;
+import ev3dev.exception.InvalidPortException;
 
 public class LegoPort {
 
-	private static String SYSTEM_CLASS_PATH = "/sys/class/lego-port";
-
 	private int port = 0;
 
-	private String address;
+	public static final int PORT_1 = 0;
+
+	public static final int PORT_2 = 1;
+
+	public static final int PORT_3 = 2;
 
-	private String driver_name;
+	public static final int PORT_4 = 3;
 
-	private String[] modes;
+	public static final int PORT_A = 4;
 
-	private String mode;
+	public static final int PORT_B = 5;
 
-	private String set_device;
+	public static final int PORT_C = 6;
 
-	private String status;
+	public static final int PORT_D = 7;
 
-	public LegoPort(int port){
+	public LegoPort(int port) throws InvalidPortException{
+		if (port < 0){
+			throw new InvalidPortException("Port is lower than 0, Port: " + port);
+		} else if (port > 7){
+			throw new InvalidPortException("Port is higher than 7, Port: " + port);
+		}
 		this.port = port;
 	}
 
-	public final String getAddress(){
+	public String getAddress(){
 		String address = null;
 		try { //TODO I shouldn't do like this. Do Error handling.
-			address = EV3.read("lego-port", "address");
+			address = EV3.read("lego-port", "port" + port, "address");
 		} catch (Exception e){
 			e.printStackTrace();
 		}
 		return address;
 	}
+
+	public String getDriverName(){
+		String drivername = null;
+		try {
+			drivername = EV3.read("lego-port", "port" + port, "driver_name");
+		} catch (Exception e){
+			e.printStackTrace();
+		}
+		return drivername;
+	}
+
+	public String[] getModes(){
+		String[] modes = null;
+		//TODO This
+		return modes;
+	}
+
+	public String getMode(){
+		String mode = null;
+		try {
+			mode = EV3.read("lego-port", "port" + port, "mode");
+		} catch (Exception e){
+			e.printStackTrace();
+		}
+		return mode;
+	}
+
+	public void setMode(String mode){
+		try {
+			EV3.write("lego-port", "port" + port, "mode", mode);
+		} catch (Exception e){
+			e.printStackTrace();
+		}
+	}
+
+	public void setDevice(String driver){
+		try {
+			EV3.write("lego-port", "port" + port, "set_device", driver);
+		} catch (Exception e){
+			e.printStackTrace();
+		}
+	}
+
+	public String getStatus(){
+		String status = null;
+		try {
+			status = EV3.read("lego-port", "port" + port, "status");
+		} catch (Exception e){
+			e.printStackTrace();
+		}
+		return status;
+	}
 }

src/main/java/ev3dev/hardware/Motor.java

@@ -0,0 +1,57 @@
+package ev3dev.hardware;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.security.AccessControlException;
+
+import ev3dev.EV3;
+import ev3dev.exception.InvalidPortException;
+
+public class Motor {
+
+	private static final String SYSTEM_CLASS_NAME = "tacho-motor";
+	private LegoPort port;
+	private String address;
+
+	/***
+	 * Creates a new motor object.
+	 * @param port Specify a LegoPort
+	 * @throws InvalidPortException If the LegoPort isn't a OUTPUT, invalid or a tacho-motor.
+	 */
+	public Motor(LegoPort port) throws InvalidPortException{
+		this.port = port;
+		address = port.getAddress();
+
+		//Verify is the LegoPort connecting a motor / is a output
+		if (!address.contains("out")){
+			throw new InvalidPortException("The specified port (" + port.getAddress() + ") isn't a output.");
+		} else if (port.getStatus() != "tacho-motor"){
+			throw new InvalidPortException("The specified port (" + port.getAddress() + ") isn't a motor (" + port.getStatus() + ")");
+		}
+
+	}
+
+	/***
+	 * Get the address of this motor.
+	 * @return LegoPort address described in String
+	 * @throws IOException If the motor doesn't exist or IO ERROR
+	 */
+	public String getAddress() throws IOException{
+		return EV3.read(SYSTEM_CLASS_NAME, "tacho-motor", "");
+	}
+
+	private static int getMotorNumber(String address){
+		int motors = EV3.getNumbersOfSubClass("motor");
+		if (motors == -1){
+			return -1;
+		}
+		for (int i = 0; i < motors; i++){
+			try {
+				if (EV3.read("tacho-motor", "motor" + i, "address").equals(address)){
+					return i;
+				} 
+			} catch (IOException ignore){}
+		}
+		return -1;
+	}
+}