Let the real exception propagate.

diff --git a/src/main/java/net/pterodactylus/sonitus/data/Pipeline.java b/src/main/java/net/pterodactylus/sonitus/data/Pipeline.java
index c63b272..3fb2810 100644 (file)
--- a/src/main/java/net/pterodactylus/sonitus/data/Pipeline.java
+++ b/src/main/java/net/pterodactylus/sonitus/data/Pipeline.java
@@ -317,6 +317,9 @@ public class Pipeline implements Iterable<Filter> {
                /** The number of copied bytes. */
                private long counter;
 
+               /** The exception that was encountered, if any. */
+               private Optional<IOException> ioException = Optional.absent();
+
                /**
                 * Creates a new connection.
                 *
@@ -377,6 +380,17 @@ public class Pipeline implements Iterable<Filter> {
                        return counter;
                }
 
+               /**
+                * Returns the I/O exception that was encountered while processing this
+                * connection.
+                *
+                * @return The I/O exception that occured, or {@link Optional#absent()} if no
+                *         exception occured
+                */
+               public Optional<IOException> ioException() {
+                       return ioException;
+               }
+
                //
                // ACTIONS
                //
@@ -396,13 +410,9 @@ public class Pipeline implements Iterable<Filter> {
                        while (!stopped.get()) {
                                try {
                                        final DataPacket dataPacket;
-                                       try {
-                                               logger.finest(String.format("Getting %d bytes from %s...", 4096, source.name()));
-                                               dataPacket = source.get(4096);
-                                               logger.finest(String.format("Got %d bytes from %s.", dataPacket.buffer().length, source.name()));
-                                       } catch (IOException ioe1) {
-                                               throw new IOException(String.format("I/O error while reading from %s.", source.name()), ioe1);
-                                       }
+                                       logger.finest(String.format("Getting %d bytes from %s...", 4096, source.name()));
+                                       dataPacket = source.get(4096);
+                                       logger.finest(String.format("Got %d bytes from %s.", dataPacket.buffer().length, source.name()));
                                        List<Future<Void>> futures = executorService.invokeAll(FluentIterable.from(sinks).transform(new Function<Filter, Callable<Void>>() {
 
                                                @Override
@@ -411,13 +421,9 @@ public class Pipeline implements Iterable<Filter> {
 
                                                                @Override
                                                                public Void call() throws Exception {
-                                                                       try {
-                                                                               logger.finest(String.format("Sending %d bytes to %s.", dataPacket.buffer().length, sink.name()));
-                                                                               sink.process(dataPacket);
-                                                                               logger.finest(String.format("Sent %d bytes to %s.", dataPacket.buffer().length, sink.name()));
-                                                                       } catch (IOException ioe1) {
-                                                                               throw new IOException(String.format("I/O error while writing to %s", sink.name()), ioe1);
-                                                                       }
+                                                                       logger.finest(String.format("Sending %d bytes to %s.", dataPacket.buffer().length, sink.name()));
+                                                                       sink.process(dataPacket);
+                                                                       logger.finest(String.format("Sent %d bytes to %s.", dataPacket.buffer().length, sink.name()));
                                                                        return null;
                                                                }
                                                        };
@@ -429,8 +435,7 @@ public class Pipeline implements Iterable<Filter> {
                                        }
                                        counter += dataPacket.buffer().length;
                                } catch (IOException e) {
-                                       /* TODO */
-                                       e.printStackTrace();
+                                       ioException = Optional.of(e);
                                        break;
                                } catch (InterruptedException e) {
                                        /* TODO */