Switch from log4j to slf4j.

Slf4j works on Android easily.

2 files changed, 22 insertions, 12 deletions

diff --git a/jsonrpc/pom.xml b/jsonrpc/pom.xml
index 4d06cfd..7d2bba7 100644
--- a/jsonrpc/pom.xml
+++ b/jsonrpc/pom.xml
@@ -44,9 +44,15 @@
     </dependency>
 
     <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
-      <version>1.2.16</version>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+      <version>1.6.4</version>
+    </dependency>
+
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-log4j12</artifactId>
+      <version>1.6.4</version>
     </dependency>
 
     <dependency>
diff --git a/jsonrpc/src/main/java/com/orbekk/net/BroadcastListener.java b/jsonrpc/src/main/java/com/orbekk/net/BroadcastListener.java
index 50cdbc7..c0b66e0 100644
--- a/jsonrpc/src/main/java/com/orbekk/net/BroadcastListener.java
+++ b/jsonrpc/src/main/java/com/orbekk/net/BroadcastListener.java
@@ -5,40 +5,44 @@ import java.net.DatagramPacket;
 import java.net.DatagramSocket;
 import java.net.SocketException;
 
-import org.apache.log4j.Logger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class BroadcastListener {
     private int port;
-    private Logger logger = Logger.getLogger(getClass());
+    private Logger logger = LoggerFactory.getLogger(getClass());
     
     public BroadcastListener(int port) {
         this.port = port;
     }
     
-    public boolean listen() {
-        logger.info("Waiting for broadcast on port " + port);
+    public DatagramPacket listen() {
+        logger.debug("Waiting for broadcast on port " + port);
         DatagramSocket socket;
         try {
             socket = new DatagramSocket(port);
         } catch (SocketException e) {
             logger.warn("Failed to create socket.", e.fillInStackTrace());
-            return true;
+            return null;
         }
         try {
             socket.setBroadcast(true);
         } catch (SocketException e) {
-            logger.warn(e.fillInStackTrace());
+            logger.warn("Exception: {}", e);
         }
         byte[] buffer = new byte[2048];
         DatagramPacket packet = new DatagramPacket(buffer, buffer.length);
         try {
             socket.receive(packet);
         } catch (IOException e) {
-            logger.warn(e.fillInStackTrace());
+            logger.warn("Exception when listening for broadcast: {}", e);
+            return null;
         }
-        logger.info("Received broadcast from " + packet.getAddress() +
+        
+        String address = packet.getAddress().getHostAddress();
+        logger.debug("Received broadcast from " + address +
                 ": " + new String(packet.getData()));
-        return true;
+        return packet;
     }
     
     public static void main(String[] args) {