First attempt of introducing a REST interface

pom.xml

@@ -108,6 +108,16 @@
 			<version>2.21.0</version>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>com.sparkjava</groupId>
+			<artifactId>spark-core</artifactId>
+			<version>2.9.3</version>
+		</dependency>
+		<dependency>
+			<groupId>com.google.code.gson</groupId>
+			<artifactId>gson</artifactId>
+			<version>2.8.6</version>
+		</dependency>
 	</dependencies>
 
 	<version>1.1.0-SNAPSHOT</version>

src/main/java/de/myandres/optolink/Main.java

@@ -13,7 +13,9 @@
  *******************************************************************************/
 package de.myandres.optolink;
 
+import de.myandres.optolink.socket.HttpHandler;
 import de.myandres.optolink.socket.SocketHandler;
+import de.myandres.optolink.socket.service.ThingService;
 import de.myandres.optolink.viessmann.ViessmannHandler;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -32,11 +34,11 @@ public static void main(String[] args) {
 
 		try {
 
-			// config = new Config("src/main/resources/optolink.xml");
-			config = new Config("conf/optolink.xml");
+			 config = new Config("src/main/resources/optolink.xml");
+//			config = new Config("conf/optolink.xml");
 
 			// Init ViessmannHandler
-			viessmannHandler = new ViessmannHandler(config);
+//			viessmannHandler = new ViessmannHandler(config);
 
 		} catch (Exception e) {
 			log.error("Something is wrong not init", e);
@@ -56,14 +58,16 @@ public static void main(String[] args) {
 			log.info("Programm normal terminated by Signal (Kill)");
 		}));
 
-		try {
-
-			// Start SocketHandler
-			SocketHandler socketHandler = new SocketHandler(config, viessmannHandler);
-			socketHandler.start();
-
-		} catch (Exception e) {
-			log.error("Programm abnormal terminated.", e);
-		}
+		ThingService thingService = new ThingService(config.getThingList());
+		HttpHandler httpHandler = new HttpHandler(thingService);
+//		try {
+//
+//			// Start SocketHandler
+//			SocketHandler socketHandler = new SocketHandler(config, viessmannHandler);
+//			socketHandler.start();
+//
+//		} catch (Exception e) {
+//			log.error("Programm abnormal terminated.", e);
+//		}
 	}
 }

src/main/java/de/myandres/optolink/socket/HttpHandler.java

@@ -0,0 +1,27 @@
+package de.myandres.optolink.socket;
+
+import de.myandres.optolink.socket.config.JsonTransformer;
+import de.myandres.optolink.socket.service.ThingService;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import spark.Spark;
+
+public class HttpHandler {
+
+    private static final Logger LOGGER = LogManager.getLogger(HttpHandler.class);
+
+    private final ThingService thingService;
+    private final JsonTransformer jsonTransformer;
+
+    public HttpHandler(ThingService thingService) {
+        this.thingService = thingService;
+        jsonTransformer = new JsonTransformer();
+
+        Spark.get("/devices", (req, res) -> thingService.getDevices(), jsonTransformer);
+        Spark.get("/devices/:id", (req, res) -> thingService.getDevice(req.params("id")), jsonTransformer);
+        Spark.after((req, res) -> {
+            res.header("Content-Type", "application/json");
+        });
+    }
+
+}

src/main/java/de/myandres/optolink/socket/config/JsonTransformer.java

@@ -0,0 +1,14 @@
+package de.myandres.optolink.socket.config;
+
+import com.google.gson.Gson;
+import spark.ResponseTransformer;
+
+public class JsonTransformer implements ResponseTransformer {
+
+    private Gson gson = new Gson();
+
+    @Override
+    public String render(Object model) {
+        return gson.toJson(model);
+    }
+}

src/main/java/de/myandres/optolink/socket/model/ChannelDto.java

@@ -0,0 +1,33 @@
+package de.myandres.optolink.socket.model;
+
+import java.io.Serializable;
+
+public class ChannelDto implements Serializable {
+
+    private String id;
+
+    private String value;
+
+    public ChannelDto() {}
+
+    public ChannelDto(String id, String value) {
+        this.id = id;
+        this.value = value;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+}

src/main/java/de/myandres/optolink/socket/model/ThingDto.java

@@ -0,0 +1,34 @@
+package de.myandres.optolink.socket.model;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class ThingDto implements Serializable {
+
+    private String id;
+
+    private List<ChannelDto> channels;
+
+    public ThingDto() {}
+
+    public ThingDto(String id, List<ChannelDto> channels) {
+        this.id = id;
+        this.channels = channels;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public List<ChannelDto> getChannels() {
+        return channels;
+    }
+
+    public void setChannels(List<ChannelDto> channels) {
+        this.channels = channels;
+    }
+}

src/main/java/de/myandres/optolink/socket/service/ThingService.java

@@ -0,0 +1,45 @@
+package de.myandres.optolink.socket.service;
+
+import de.myandres.optolink.openhab.Channel;
+import de.myandres.optolink.openhab.Thing;
+import de.myandres.optolink.socket.model.ChannelDto;
+import de.myandres.optolink.socket.model.ThingDto;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class ThingService {
+
+    private static final Logger LOGGER = LogManager.getLogger(ThingService.class);
+
+   private final List<Thing> things;
+
+    public ThingService(List<Thing> things) {
+        this.things = things;
+    }
+
+    public List<ThingDto> getDevices() {
+        LOGGER.debug("get /devices");
+        return mapThings(things);
+    }
+
+    public String getDevice(String id) {
+        LOGGER.debug("get /devices");
+        return "no device found!";
+    }
+
+    private List<ThingDto> mapThings(List<Thing> things) {
+        return things.stream()
+                .map(t -> new ThingDto(t.getId(), mapChannels(t.getChannelMap())))
+                .collect(Collectors.toList());
+    }
+
+    private List<ChannelDto> mapChannels(List<Channel> channels) {
+        return channels.stream()
+                .filter(c -> !c.getId().startsWith("*"))
+                .map(c -> new ChannelDto(c.getId(), null))
+                .collect(Collectors.toList());
+    }
+}

src/main/resources/optolink.xml

@@ -24,10 +24,10 @@ For more information about addresses and types see: http://openv.wikispaces.com/
 
 <optolink device="2033" id="300P" protocol="300">
 
-     <adapterID>VITOLIGNO</adapterID>        <!-- Unique ID on the Network-->
-     <tty>/dev/ttyAMA0</tty>                 <!-- serial port of the optolink adapter-->
-     <ttytimeout>2000</ttytimeout>           <!-- milliseconds for reading timeout tty -->
-     <port>31113</port>                      <!-- port for incoming communication. See also: http://www.iana.org -->
+    <adapterID>VITOLIGNO</adapterID>        <!-- Unique ID on the Network-->
+    <tty>/dev/ttyUSB0</tty>                 <!-- serial port of the optolink adapter-->
+    <ttytimeout>2000</ttytimeout>           <!-- milliseconds for reading timeout tty -->
+    <port>31113</port>                      <!-- port for incoming communication. See also: http://www.iana.org -->
 
      <!-- Addressen die von diesem 'device' unterst�tzt werden -->