iot tp3 coap

iot/tp3/occitanium-server/src/Main.java

@@ -0,0 +1,157 @@
+import org.eclipse.californium.core.CoapResource;
+import org.eclipse.californium.core.CoapServer;
+import org.eclipse.californium.core.coap.CoAP;
+import org.eclipse.californium.core.server.resources.CoapExchange;
+
+public class Main {
+    public static void main(String[] args) {
+        var server = new CoapServer(5683);
+        server.add(new HelloWorldResource());
+        server.add(new TimeResource());
+        server.add(new SubPathResource());
+        server.add(new ModifiableResource());
+        server.add(new DeletableResource());
+        server.add(new LightResource());
+        server.start();
+    }
+}
+
+
+class HelloWorldResource extends CoapResource {
+    public HelloWorldResource() {
+        super("hello-world");
+    }
+
+    @Override
+    public void handleGET(CoapExchange exchange) {
+        exchange.respond(CoAP.ResponseCode.CONTENT, "hello world");
+    }
+}
+
+
+class TimeResource extends CoapResource {
+    public TimeResource() {
+        super("time");
+    }
+
+    @Override
+    public void handleGET(CoapExchange exchange) {
+        exchange.respond(CoAP.ResponseCode.CONTENT, Long.toString(System.currentTimeMillis()));
+    }
+}
+
+
+class SubPathResource extends CoapResource {
+    public SubPathResource() {
+        super("subpath");
+        add(new AnotherResource());
+    }
+
+    @Override
+    public void handleGET(CoapExchange exchange) {
+        exchange.respond(CoAP.ResponseCode.CONTENT, "subpath");
+    }
+}
+
+
+class AnotherResource extends CoapResource {
+    public AnotherResource() {
+        super("another");
+    }
+
+    @Override
+    public void handleGET(CoapExchange exchange) {
+        exchange.respond(CoAP.ResponseCode.CONTENT, "another");
+    }
+}
+
+
+class ModifiableResource extends CoapResource {
+    private String value;
+    public ModifiableResource() {
+        super("modifiable");
+        value = "Start";
+    }
+
+    @Override
+    public void handleGET(CoapExchange exchange) {
+        exchange.respond(CoAP.ResponseCode.CONTENT, value);
+    }
+
+    @Override
+    public void handlePUT(CoapExchange exchange) {
+        value = exchange.getRequestText();
+        exchange.respond(CoAP.ResponseCode.CHANGED, value);
+    }
+}
+
+
+class DeletableResource extends CoapResource {
+    public DeletableResource() {
+        super("deletable");
+    }
+
+    @Override
+    public void handleGET(CoapExchange exchange) {
+        exchange.respond(CoAP.ResponseCode.DELETED, "Deleted resource.");
+    }
+}
+
+
+class LightResource extends CoapResource {
+    public LightResource() {
+        super("Light");
+        brightness = 6;
+        add(new LampResource());
+        setObservable(true);
+    }
+
+    Integer brightness;
+
+    @Override
+    public void handleGET(CoapExchange exchange) {
+        System.out.println("access detected");
+        exchange.respond(CoAP.ResponseCode.CONTENT, brightness.toString());
+    }
+
+    @Override
+    public void handlePUT(CoapExchange exchange) {
+        brightness = Integer.parseInt(exchange.getRequestText());
+        exchange.respond(CoAP.ResponseCode.CHANGED, brightness.toString());
+    }
+}
+
+enum LampState {
+    On("On"),
+    Off("Off");
+
+    private String text;
+    private LampState(String text_) {
+        text = text_;
+    }
+
+    @Override
+    public String toString() {
+        return text;
+    }
+
+    public static LampState fromString(String text_) {
+        if (text_.equals("On")) return LampState.On;
+        if (text_.equals("Off")) return LampState.Off;
+        return null;
+    }
+}
+
+class LampResource extends CoapResource {
+    private LampState state = LampState.On;
+    public LampResource() {
+        super("lamp");
+    }
+
+    @Override
+    public void handlePUT(CoapExchange exchange) {
+        var input = LampState.fromString(exchange.getRequestText());
+        if (input == null) return;
+        exchange.respond(CoAP.ResponseCode.CHANGED, state.toString());
+    }
+}