Code cleanup

core/src/main/java/ch/dissem/bitmessage/BaseMessageCallback.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2016 Christian Basler
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ch.dissem.bitmessage;
+
+import ch.dissem.bitmessage.entity.payload.ObjectPayload;
+import ch.dissem.bitmessage.entity.valueobject.InventoryVector;
+
+/**
+ * Default implementation that doesn't do anything.
+ *
+ * @author Christian Basler
+ */
+public class BaseMessageCallback implements MessageCallback {
+    @Override
+    public void proofOfWorkStarted(ObjectPayload message) {
+        // No op
+    }
+
+    @Override
+    public void proofOfWorkCompleted(ObjectPayload message) {
+        // No op
+    }
+
+    @Override
+    public void messageOffered(ObjectPayload message, InventoryVector iv) {
+        // No op
+    }
+
+    @Override
+    public void messageAcknowledged(InventoryVector iv) {
+        // No op
+    }
+}

core/src/main/java/ch/dissem/bitmessage/BitmessageContext.java

@@ -410,23 +410,7 @@ public class BitmessageContext {
                 proofOfWorkEngine = new MultiThreadedPOWEngine();
             }
             if (messageCallback == null) {
-                messageCallback = new MessageCallback() {
-                    @Override
-                    public void proofOfWorkStarted(ObjectPayload message) {
-                    }
-
-                    @Override
-                    public void proofOfWorkCompleted(ObjectPayload message) {
-                    }
-
-                    @Override
-                    public void messageOffered(ObjectPayload message, InventoryVector iv) {
-                    }
-
-                    @Override
-                    public void messageAcknowledged(InventoryVector iv) {
-                    }
-                };
+                messageCallback = new BaseMessageCallback();
             }
             if (customCommandHandler == null) {
                 customCommandHandler = new CustomCommandHandler() {

core/src/main/java/ch/dissem/bitmessage/DefaultMessageListener.java

@@ -65,6 +65,9 @@ class DefaultMessageListener implements NetworkHandler.MessageListener {
                 receive(object, (Broadcast) payload);
                 break;
             }
+            default: {
+                throw new IllegalArgumentException("Unknown payload type " + payload.getType());
+            }
         }
     }
 
@@ -96,7 +99,7 @@ class DefaultMessageListener implements NetworkHandler.MessageListener {
         }
     }
 
-    private void updatePubkey(BitmessageAddress address, Pubkey pubkey){
+    private void updatePubkey(BitmessageAddress address, Pubkey pubkey) {
         address.setPubkey(pubkey);
         LOG.info("Got pubkey for contact " + address);
         ctx.getAddressRepository().save(address);

core/src/main/java/ch/dissem/bitmessage/InternalContext.java

@@ -20,6 +20,7 @@ import ch.dissem.bitmessage.entity.BitmessageAddress;
 import ch.dissem.bitmessage.entity.Encrypted;
 import ch.dissem.bitmessage.entity.ObjectMessage;
 import ch.dissem.bitmessage.entity.payload.*;
+import ch.dissem.bitmessage.exception.ApplicationException;
 import ch.dissem.bitmessage.ports.*;
 import ch.dissem.bitmessage.utils.Singleton;
 import ch.dissem.bitmessage.utils.TTL;
@@ -187,7 +188,7 @@ public class InternalContext {
             messageCallback.proofOfWorkStarted(payload);
             proofOfWorkService.doProofOfWork(to, object);
         } catch (IOException e) {
-            throw new RuntimeException(e);
+            throw new ApplicationException(e);
         }
     }
 
@@ -206,7 +207,7 @@ public class InternalContext {
             // TODO: remember that the pubkey is just about to be sent, and on which stream!
             proofOfWorkService.doProofOfWork(response);
         } catch (IOException e) {
-            throw new RuntimeException(e);
+            throw new ApplicationException(e);
         }
     }
 

core/src/main/java/ch/dissem/bitmessage/entity/NetworkMessage.java

@@ -16,6 +16,7 @@
 
 package ch.dissem.bitmessage.entity;
 
+import ch.dissem.bitmessage.exception.ApplicationException;
 import ch.dissem.bitmessage.utils.Encode;
 
 import java.io.ByteArrayOutputStream;
@@ -84,7 +85,7 @@ public class NetworkMessage implements Streamable {
         try {
             out.write(getChecksum(payloadBytes));
         } catch (GeneralSecurityException e) {
-            throw new RuntimeException(e);
+            throw new ApplicationException(e);
         }
 
         // message payload

core/src/main/java/ch/dissem/bitmessage/entity/ObjectMessage.java

@@ -191,9 +191,6 @@ public class ObjectMessage implements MessagePayload {
         private long streamNumber;
         private ObjectPayload payload;
 
-        public Builder() {
-        }
-
         public Builder nonce(byte[] nonce) {
             this.nonce = nonce;
             return this;

core/src/main/java/ch/dissem/bitmessage/entity/valueobject/NetworkAddress.java

@@ -17,6 +17,7 @@
 package ch.dissem.bitmessage.entity.valueobject;
 
 import ch.dissem.bitmessage.entity.Streamable;
+import ch.dissem.bitmessage.exception.ApplicationException;
 import ch.dissem.bitmessage.utils.Encode;
 import ch.dissem.bitmessage.utils.UnixTime;
 
@@ -85,7 +86,7 @@ public class NetworkAddress implements Streamable {
         try {
             return InetAddress.getByAddress(ipv6);
         } catch (UnknownHostException e) {
-            throw new RuntimeException(e);
+            throw new ApplicationException(e);
         }
     }
 

core/src/main/java/ch/dissem/bitmessage/exception/ApplicationException.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2016 Christian Basler
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ch.dissem.bitmessage.exception;
+
+/**
+ * @author Christian Basler
+ */
+public class ApplicationException extends RuntimeException {
+    public ApplicationException(Throwable cause) {
+        super(cause);
+    }
+}

core/src/test/java/ch/dissem/bitmessage/entity/SerializationTest.java

@@ -111,6 +111,7 @@ public class SerializationTest extends TestBase {
         before.write(out);
 
         NetworkMessage after = Factory.getNetworkMessage(3, new ByteArrayInputStream(out.toByteArray()));
+        assertNotNull(after);
         Inv invAfter = (Inv) after.getPayload();
         assertEquals(ivs, invAfter.getInventory());
     }

cryptography-bc/src/test/java/ch/dissem/bitmessage/security/CryptographyTest.java

@@ -5,6 +5,7 @@ import ch.dissem.bitmessage.cryptography.bc.BouncyCryptography;
 import ch.dissem.bitmessage.entity.ObjectMessage;
 import ch.dissem.bitmessage.entity.payload.GenericPayload;
 import ch.dissem.bitmessage.entity.valueobject.PrivateKey;
+import ch.dissem.bitmessage.exception.InsufficientProofOfWorkException;
 import ch.dissem.bitmessage.ports.MultiThreadedPOWEngine;
 import ch.dissem.bitmessage.ports.ProofOfWorkEngine;
 import ch.dissem.bitmessage.utils.CallbackWaiter;
@@ -22,6 +23,7 @@ import static ch.dissem.bitmessage.utils.UnixTime.MINUTE;
 import static org.hamcrest.CoreMatchers.is;
 import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertThat;
+import static org.junit.Assert.fail;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
@@ -102,7 +104,11 @@ public class CryptographyTest {
                     }
                 });
         objectMessage.setNonce(waiter.waitForValue());
-        crypto.checkProofOfWork(objectMessage, 1000, 1000);
+        try {
+            crypto.checkProofOfWork(objectMessage, 1000, 1000);
+        } catch (InsufficientProofOfWorkException e) {
+            fail(e.getMessage());
+        }
     }
 
     @Test

networking/src/main/java/ch/dissem/bitmessage/networking/Connection.java

@@ -114,7 +114,7 @@ class Connection {
 
     public static Connection sync(InternalContext ctx, InetAddress address, int port, MessageListener listener,
                                   long timeoutInSeconds) throws IOException {
-        return new Connection(ctx, Mode.SYNC, listener, new Socket(address, port),
+        return new Connection(ctx, SYNC, listener, new Socket(address, port),
                 new HashSet<InventoryVector>(),
                 new HashSet<InventoryVector>(),
                 new NetworkAddress.Builder().ip(address).port(port).stream(1).build(),

networking/src/main/java/ch/dissem/bitmessage/networking/DefaultNetworkHandler.java

@@ -171,6 +171,8 @@ public class DefaultNetworkHandler implements NetworkHandler, ContextHolder {
                                             case ACTIVE:
                                                 active++;
                                                 break;
+                                            default:
+                                                // nothing to do
                                         }
                                     }
                                 }

networking/src/test/java/ch/dissem/bitmessage/networking/NetworkHandlerTest.java

@@ -52,30 +52,30 @@ public class NetworkHandlerTest {
     public static void setUp() {
         peerInventory = new TestInventory();
         peer = new BitmessageContext.Builder()
-                .addressRepo(Mockito.mock(AddressRepository.class))
+                .addressRepo(mock(AddressRepository.class))
                 .inventory(peerInventory)
-                .messageRepo(Mockito.mock(MessageRepository.class))
-                .powRepo(Mockito.mock(ProofOfWorkRepository.class))
+                .messageRepo(mock(MessageRepository.class))
+                .powRepo(mock(ProofOfWorkRepository.class))
                 .port(6001)
                 .nodeRegistry(new TestNodeRegistry())
                 .networkHandler(new DefaultNetworkHandler())
                 .cryptography(new BouncyCryptography())
-                .listener(Mockito.mock(BitmessageContext.Listener.class))
+                .listener(mock(BitmessageContext.Listener.class))
                 .build();
         peer.startup();
 
         nodeInventory = new TestInventory();
         networkHandler = new DefaultNetworkHandler();
         node = new BitmessageContext.Builder()
-                .addressRepo(Mockito.mock(AddressRepository.class))
+                .addressRepo(mock(AddressRepository.class))
                 .inventory(nodeInventory)
-                .messageRepo(Mockito.mock(MessageRepository.class))
-                .powRepo(Mockito.mock(ProofOfWorkRepository.class))
+                .messageRepo(mock(MessageRepository.class))
+                .powRepo(mock(ProofOfWorkRepository.class))
                 .port(6002)
                 .nodeRegistry(new TestNodeRegistry(localhost))
                 .networkHandler(networkHandler)
                 .cryptography(new BouncyCryptography())
-                .listener(Mockito.mock(BitmessageContext.Listener.class))
+                .listener(mock(BitmessageContext.Listener.class))
                 .build();
     }
 

repositories/src/main/java/ch/dissem/bitmessage/repository/JdbcInventory.java

@@ -19,6 +19,7 @@ package ch.dissem.bitmessage.repository;
 import ch.dissem.bitmessage.entity.ObjectMessage;
 import ch.dissem.bitmessage.entity.payload.ObjectType;
 import ch.dissem.bitmessage.entity.valueobject.InventoryVector;
+import ch.dissem.bitmessage.exception.ApplicationException;
 import ch.dissem.bitmessage.factory.Factory;
 import ch.dissem.bitmessage.ports.Inventory;
 import org.slf4j.Logger;
@@ -99,7 +100,7 @@ public class JdbcInventory extends JdbcHelper implements Inventory {
             }
         } catch (Exception e) {
             LOG.error(e.getMessage(), e);
-            throw new RuntimeException(e);
+            throw new ApplicationException(e);
         }
     }
 
@@ -126,7 +127,7 @@ public class JdbcInventory extends JdbcHelper implements Inventory {
             return result;
         } catch (Exception e) {
             LOG.error(e.getMessage(), e);
-            throw new RuntimeException(e);
+            throw new ApplicationException(e);
         }
     }