Support very simple serving.

– Not asynchronous at this point.
– Not well-tested.

6 files changed, 1304 insertions, 39 deletions

diff --git a/src/main/java/com/orbekk/protobuf/Rpc.java b/src/main/java/com/orbekk/protobuf/Rpc.java
index 2748329..c74e48a 100644
--- a/src/main/java/com/orbekk/protobuf/Rpc.java
+++ b/src/main/java/com/orbekk/protobuf/Rpc.java
@@ -542,9 +542,13 @@ public final class Rpc {
     boolean hasResponseProto();
     com.google.protobuf.ByteString getResponseProto();
     
-    // optional int32 error = 2 [default = 0];
+    // optional .com.orbekk.protobuf.Response.Error error = 2;
     boolean hasError();
-    int getError();
+    com.orbekk.protobuf.Rpc.Response.Error getError();
+    
+    // optional int32 app_error = 4;
+    boolean hasAppError();
+    int getAppError();
     
     // optional string error_message = 3;
     boolean hasErrorMessage();
@@ -578,6 +582,81 @@ public final class Rpc {
       return com.orbekk.protobuf.Rpc.internal_static_com_orbekk_protobuf_Response_fieldAccessorTable;
     }
     
+    public enum Error
+        implements com.google.protobuf.ProtocolMessageEnum {
+      UNKNOWN_SERVICE(0, 0),
+      UNKNOWN_METHOD(1, 1),
+      CANCELED(2, 2),
+      APP_ERROR(3, 3),
+      ;
+      
+      public static final int UNKNOWN_SERVICE_VALUE = 0;
+      public static final int UNKNOWN_METHOD_VALUE = 1;
+      public static final int CANCELED_VALUE = 2;
+      public static final int APP_ERROR_VALUE = 3;
+      
+      
+      public final int getNumber() { return value; }
+      
+      public static Error valueOf(int value) {
+        switch (value) {
+          case 0: return UNKNOWN_SERVICE;
+          case 1: return UNKNOWN_METHOD;
+          case 2: return CANCELED;
+          case 3: return APP_ERROR;
+          default: return null;
+        }
+      }
+      
+      public static com.google.protobuf.Internal.EnumLiteMap<Error>
+          internalGetValueMap() {
+        return internalValueMap;
+      }
+      private static com.google.protobuf.Internal.EnumLiteMap<Error>
+          internalValueMap =
+            new com.google.protobuf.Internal.EnumLiteMap<Error>() {
+              public Error findValueByNumber(int number) {
+                return Error.valueOf(number);
+              }
+            };
+      
+      public final com.google.protobuf.Descriptors.EnumValueDescriptor
+          getValueDescriptor() {
+        return getDescriptor().getValues().get(index);
+      }
+      public final com.google.protobuf.Descriptors.EnumDescriptor
+          getDescriptorForType() {
+        return getDescriptor();
+      }
+      public static final com.google.protobuf.Descriptors.EnumDescriptor
+          getDescriptor() {
+        return com.orbekk.protobuf.Rpc.Response.getDescriptor().getEnumTypes().get(0);
+      }
+      
+      private static final Error[] VALUES = {
+        UNKNOWN_SERVICE, UNKNOWN_METHOD, CANCELED, APP_ERROR, 
+      };
+      
+      public static Error valueOf(
+          com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+        if (desc.getType() != getDescriptor()) {
+          throw new java.lang.IllegalArgumentException(
+            "EnumValueDescriptor is not for this type.");
+        }
+        return VALUES[desc.getIndex()];
+      }
+      
+      private final int index;
+      private final int value;
+      
+      private Error(int index, int value) {
+        this.index = index;
+        this.value = value;
+      }
+      
+      // @@protoc_insertion_point(enum_scope:com.orbekk.protobuf.Response.Error)
+    }
+    
     private int bitField0_;
     // optional bytes response_proto = 1;
     public static final int RESPONSE_PROTO_FIELD_NUMBER = 1;
@@ -589,21 +668,31 @@ public final class Rpc {
       return responseProto_;
     }
     
-    // optional int32 error = 2 [default = 0];
+    // optional .com.orbekk.protobuf.Response.Error error = 2;
     public static final int ERROR_FIELD_NUMBER = 2;
-    private int error_;
+    private com.orbekk.protobuf.Rpc.Response.Error error_;
     public boolean hasError() {
       return ((bitField0_ & 0x00000002) == 0x00000002);
     }
-    public int getError() {
+    public com.orbekk.protobuf.Rpc.Response.Error getError() {
       return error_;
     }
     
+    // optional int32 app_error = 4;
+    public static final int APP_ERROR_FIELD_NUMBER = 4;
+    private int appError_;
+    public boolean hasAppError() {
+      return ((bitField0_ & 0x00000004) == 0x00000004);
+    }
+    public int getAppError() {
+      return appError_;
+    }
+    
     // optional string error_message = 3;
     public static final int ERROR_MESSAGE_FIELD_NUMBER = 3;
     private Object errorMessage_;
     public boolean hasErrorMessage() {
-      return ((bitField0_ & 0x00000004) == 0x00000004);
+      return ((bitField0_ & 0x00000008) == 0x00000008);
     }
     public String getErrorMessage() {
       Object ref = errorMessage_;
@@ -633,7 +722,8 @@ public final class Rpc {
     
     private void initFields() {
       responseProto_ = com.google.protobuf.ByteString.EMPTY;
-      error_ = 0;
+      error_ = com.orbekk.protobuf.Rpc.Response.Error.UNKNOWN_SERVICE;
+      appError_ = 0;
       errorMessage_ = "";
     }
     private byte memoizedIsInitialized = -1;
@@ -652,11 +742,14 @@ public final class Rpc {
         output.writeBytes(1, responseProto_);
       }
       if (((bitField0_ & 0x00000002) == 0x00000002)) {
-        output.writeInt32(2, error_);
+        output.writeEnum(2, error_.getNumber());
       }
-      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
         output.writeBytes(3, getErrorMessageBytes());
       }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        output.writeInt32(4, appError_);
+      }
       getUnknownFields().writeTo(output);
     }
     
@@ -672,12 +765,16 @@ public final class Rpc {
       }
       if (((bitField0_ & 0x00000002) == 0x00000002)) {
         size += com.google.protobuf.CodedOutputStream
-          .computeInt32Size(2, error_);
+          .computeEnumSize(2, error_.getNumber());
       }
-      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
         size += com.google.protobuf.CodedOutputStream
           .computeBytesSize(3, getErrorMessageBytes());
       }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeInt32Size(4, appError_);
+      }
       size += getUnknownFields().getSerializedSize();
       memoizedSerializedSize = size;
       return size;
@@ -802,10 +899,12 @@ public final class Rpc {
         super.clear();
         responseProto_ = com.google.protobuf.ByteString.EMPTY;
         bitField0_ = (bitField0_ & ~0x00000001);
-        error_ = 0;
+        error_ = com.orbekk.protobuf.Rpc.Response.Error.UNKNOWN_SERVICE;
         bitField0_ = (bitField0_ & ~0x00000002);
-        errorMessage_ = "";
+        appError_ = 0;
         bitField0_ = (bitField0_ & ~0x00000004);
+        errorMessage_ = "";
+        bitField0_ = (bitField0_ & ~0x00000008);
         return this;
       }
       
@@ -855,6 +954,10 @@ public final class Rpc {
         if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
           to_bitField0_ |= 0x00000004;
         }
+        result.appError_ = appError_;
+        if (((from_bitField0_ & 0x00000008) == 0x00000008)) {
+          to_bitField0_ |= 0x00000008;
+        }
         result.errorMessage_ = errorMessage_;
         result.bitField0_ = to_bitField0_;
         onBuilt();
@@ -878,6 +981,9 @@ public final class Rpc {
         if (other.hasError()) {
           setError(other.getError());
         }
+        if (other.hasAppError()) {
+          setAppError(other.getAppError());
+        }
         if (other.hasErrorMessage()) {
           setErrorMessage(other.getErrorMessage());
         }
@@ -918,15 +1024,26 @@ public final class Rpc {
               break;
             }
             case 16: {
-              bitField0_ |= 0x00000002;
-              error_ = input.readInt32();
+              int rawValue = input.readEnum();
+              com.orbekk.protobuf.Rpc.Response.Error value = com.orbekk.protobuf.Rpc.Response.Error.valueOf(rawValue);
+              if (value == null) {
+                unknownFields.mergeVarintField(2, rawValue);
+              } else {
+                bitField0_ |= 0x00000002;
+                error_ = value;
+              }
               break;
             }
             case 26: {
-              bitField0_ |= 0x00000004;
+              bitField0_ |= 0x00000008;
               errorMessage_ = input.readBytes();
               break;
             }
+            case 32: {
+              bitField0_ |= 0x00000004;
+              appError_ = input.readInt32();
+              break;
+            }
           }
         }
       }
@@ -957,15 +1074,18 @@ public final class Rpc {
         return this;
       }
       
-      // optional int32 error = 2 [default = 0];
-      private int error_ ;
+      // optional .com.orbekk.protobuf.Response.Error error = 2;
+      private com.orbekk.protobuf.Rpc.Response.Error error_ = com.orbekk.protobuf.Rpc.Response.Error.UNKNOWN_SERVICE;
       public boolean hasError() {
         return ((bitField0_ & 0x00000002) == 0x00000002);
       }
-      public int getError() {
+      public com.orbekk.protobuf.Rpc.Response.Error getError() {
         return error_;
       }
-      public Builder setError(int value) {
+      public Builder setError(com.orbekk.protobuf.Rpc.Response.Error value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
         bitField0_ |= 0x00000002;
         error_ = value;
         onChanged();
@@ -973,7 +1093,28 @@ public final class Rpc {
       }
       public Builder clearError() {
         bitField0_ = (bitField0_ & ~0x00000002);
-        error_ = 0;
+        error_ = com.orbekk.protobuf.Rpc.Response.Error.UNKNOWN_SERVICE;
+        onChanged();
+        return this;
+      }
+      
+      // optional int32 app_error = 4;
+      private int appError_ ;
+      public boolean hasAppError() {
+        return ((bitField0_ & 0x00000004) == 0x00000004);
+      }
+      public int getAppError() {
+        return appError_;
+      }
+      public Builder setAppError(int value) {
+        bitField0_ |= 0x00000004;
+        appError_ = value;
+        onChanged();
+        return this;
+      }
+      public Builder clearAppError() {
+        bitField0_ = (bitField0_ & ~0x00000004);
+        appError_ = 0;
         onChanged();
         return this;
       }
@@ -981,7 +1122,7 @@ public final class Rpc {
       // optional string error_message = 3;
       private Object errorMessage_ = "";
       public boolean hasErrorMessage() {
-        return ((bitField0_ & 0x00000004) == 0x00000004);
+        return ((bitField0_ & 0x00000008) == 0x00000008);
       }
       public String getErrorMessage() {
         Object ref = errorMessage_;
@@ -997,19 +1138,19 @@ public final class Rpc {
         if (value == null) {
     throw new NullPointerException();
   }
-  bitField0_ |= 0x00000004;
+  bitField0_ |= 0x00000008;
         errorMessage_ = value;
         onChanged();
         return this;
       }
       public Builder clearErrorMessage() {
-        bitField0_ = (bitField0_ & ~0x00000004);
+        bitField0_ = (bitField0_ & ~0x00000008);
         errorMessage_ = getDefaultInstance().getErrorMessage();
         onChanged();
         return this;
       }
       void setErrorMessage(com.google.protobuf.ByteString value) {
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000008;
         errorMessage_ = value;
         onChanged();
       }
@@ -1047,9 +1188,12 @@ public final class Rpc {
       "\n+src/main/java/com/orbekk/protobuf/Rpc." +
       "proto\022\023com.orbekk.protobuf\"P\n\007Request\022\031\n" +
       "\021full_service_name\030\001 \001(\t\022\023\n\013method_name\030" +
-      "\002 \001(\t\022\025\n\rrequest_proto\030\003 \001(\014\"K\n\010Response" +
-      "\022\026\n\016response_proto\030\001 \001(\014\022\020\n\005error\030\002 \001(\005:" +
-      "\0010\022\025\n\rerror_message\030\003 \001(\t"
+      "\002 \001(\t\022\025\n\rrequest_proto\030\003 \001(\014\"\317\001\n\010Respons" +
+      "e\022\026\n\016response_proto\030\001 \001(\014\0222\n\005error\030\002 \001(\016" +
+      "2#.com.orbekk.protobuf.Response.Error\022\021\n" +
+      "\tapp_error\030\004 \001(\005\022\025\n\rerror_message\030\003 \001(\t\"" +
+      "M\n\005Error\022\023\n\017UNKNOWN_SERVICE\020\000\022\022\n\016UNKNOWN" +
+      "_METHOD\020\001\022\014\n\010CANCELED\020\002\022\r\n\tAPP_ERROR\020\003"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
       new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
@@ -1069,7 +1213,7 @@ public final class Rpc {
           internal_static_com_orbekk_protobuf_Response_fieldAccessorTable = new
             com.google.protobuf.GeneratedMessage.FieldAccessorTable(
               internal_static_com_orbekk_protobuf_Response_descriptor,
-              new java.lang.String[] { "ResponseProto", "Error", "ErrorMessage", },
+              new java.lang.String[] { "ResponseProto", "Error", "AppError", "ErrorMessage", },
               com.orbekk.protobuf.Rpc.Response.class,
               com.orbekk.protobuf.Rpc.Response.Builder.class);
           return null;
diff --git a/src/main/java/com/orbekk/protobuf/Rpc.proto b/src/main/java/com/orbekk/protobuf/Rpc.proto
index 49e60ea..f733140 100644
--- a/src/main/java/com/orbekk/protobuf/Rpc.proto
+++ b/src/main/java/com/orbekk/protobuf/Rpc.proto
@@ -10,6 +10,13 @@ message Request {
 // Next tag: 4
 message Response {
     optional bytes response_proto = 1;
-    optional int32 error = 2 [default = 0];
+    enum Error {
+        UNKNOWN_SERVICE = 0;
+        UNKNOWN_METHOD = 1;
+        CANCELED = 2;
+        APP_ERROR = 3;
+    };
+    optional Error error = 2;
+    optional int32 app_error = 4;
     optional string error_message = 3;
 }
diff --git a/src/main/java/com/orbekk/protobuf/SimpleProtobufClient.java b/src/main/java/com/orbekk/protobuf/SimpleProtobufClient.java
index eabb516..ffaedb0 100644
--- a/src/main/java/com/orbekk/protobuf/SimpleProtobufClient.java
+++ b/src/main/java/com/orbekk/protobuf/SimpleProtobufClient.java
@@ -9,7 +9,8 @@ public class SimpleProtobufClient {
         try {
             Socket socket = new Socket("localhost", 10000);
             Rpc.Request r1 = Rpc.Request.newBuilder()
-                .setFullServiceName("Service1")
+                .setFullServiceName("com.orbekk.protobuf.TestService")
+                .setMethodName("Run")
                 .build();
             Rpc.Request r2 = Rpc.Request.newBuilder()
                 .setFullServiceName("Service2")
diff --git a/src/main/java/com/orbekk/protobuf/SimpleProtobufServer.java b/src/main/java/com/orbekk/protobuf/SimpleProtobufServer.java
index 57afae9..0a20883 100644
--- a/src/main/java/com/orbekk/protobuf/SimpleProtobufServer.java
+++ b/src/main/java/com/orbekk/protobuf/SimpleProtobufServer.java
@@ -2,16 +2,26 @@ package com.orbekk.protobuf;
 
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import java.io.OutputStream;
 import java.io.IOException;
 import java.net.InetSocketAddress;
 import java.net.ServerSocket;
 import java.net.Socket;
 import java.util.Scanner;
+import com.google.protobuf.Message;
+import com.google.protobuf.Service;
+import com.google.protobuf.RpcController;
+import com.google.protobuf.RpcCallback;
+import com.google.protobuf.Descriptors;
+import java.util.Map;
+import java.util.HashMap;
 
 public class SimpleProtobufServer extends Thread {
     private static Logger logger = Logger.getLogger(
             SimpleProtobufServer.class.getName());
-    ServerSocket serverSocket;
+    private ServerSocket serverSocket;
+    private Map<String, Service> registeredServices =
+            new HashMap<String, Service>();
 
     public static SimpleProtobufServer create(int port) {
         try {
@@ -30,16 +40,52 @@ public class SimpleProtobufServer extends Thread {
         this.serverSocket = serverSocket;
     }
 
+    public synchronized void registerService(Service service) {
+        String serviceName = service.getDescriptorForType().getFullName();
+        if (registeredServices.containsKey(serviceName)) {
+            logger.warning("Already registered service with this name.");
+        }
+        logger.info("Registering service: " + serviceName);
+        registeredServices.put(serviceName, service);
+    }
+
+    public void handleRequest(Rpc.Request request, OutputStream out)
+            throws IOException {
+        Service service = registeredServices.get(request.getFullServiceName());
+        final Rpc.Response.Builder response = Rpc.Response.newBuilder();
+        if (service == null) {
+            response.setError(Rpc.Response.Error.UNKNOWN_SERVICE);
+            response.build().writeDelimitedTo(out);
+            return;
+        }
+        Descriptors.MethodDescriptor method = service.getDescriptorForType()
+                .findMethodByName(request.getMethodName());
+        if (method == null) {
+            response.setError(Rpc.Response.Error.UNKNOWN_METHOD);
+            response.build().writeDelimitedTo(out);
+            return;
+        }
+        RpcCallback<Message> doneCallback = new RpcCallback<Message>() {
+            @Override public void run(Message responseMessage) {
+                response.setResponseProto(responseMessage.toByteString());
+            }
+        };
+        Message requestMessage = service.getRequestPrototype(method)
+                .toBuilder()
+                .mergeFrom(request.getRequestProto())
+                .build();
+        service.callMethod(method, null,  requestMessage, doneCallback);
+    }
+
     private void handleConnection(final Socket connection) {
         new Thread(new Runnable() {
             @Override public void run() {
                 try {
-                    Rpc.Request r1 = Rpc.Request.parseDelimitedFrom(
-                        connection.getInputStream());
-                    Rpc.Request r2 = Rpc.Request.parseDelimitedFrom(
-                        connection.getInputStream());
-                    System.out.println(r1);
-                    System.out.println(r2);
+                    while (true) {
+                        Rpc.Request r1 = Rpc.Request.parseDelimitedFrom(
+                            connection.getInputStream());
+                        handleRequest(r1, connection.getOutputStream());
+                    }
                 } catch (IOException e) {
                     logger.info("Closed connection: " + connection);
                 } finally {
@@ -66,6 +112,23 @@ public class SimpleProtobufServer extends Thread {
     }
 
     public static void main(String[] args) {
-        SimpleProtobufServer.create(10000).start();
+        SimpleProtobufServer server = SimpleProtobufServer.create(10000);
+        Test.TestService testService = new Test.TestService() {
+            @Override public void run(RpcController controller,
+                    Test.TestRequest request,
+                    RpcCallback<Test.TestResponse> done) {
+                System.out.println("Hello from TestService!");
+                done.run(Test.TestResponse.newBuilder()
+                        .setId("Hello from server.")
+                        .build());
+            }
+        };
+        server.registerService(testService);
+        server.start();
+        try {
+            server.join();
+        } catch (InterruptedException e) {
+            System.out.println("Stopped.");
+        }
     }
 }
diff --git a/src/main/java/com/orbekk/protobuf/Test.java b/src/main/java/com/orbekk/protobuf/Test.java
new file mode 100644
index 0000000..8b17a74
--- /dev/null
+++ b/src/main/java/com/orbekk/protobuf/Test.java
@@ -0,0 +1,1035 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: src/main/java/com/orbekk/protobuf/Test.proto
+
+package com.orbekk.protobuf;
+
+public final class Test {
+  private Test() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+  }
+  public interface TestRequestOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+    
+    // optional string id = 1;
+    boolean hasId();
+    String getId();
+  }
+  public static final class TestRequest extends
+      com.google.protobuf.GeneratedMessage
+      implements TestRequestOrBuilder {
+    // Use TestRequest.newBuilder() to construct.
+    private TestRequest(Builder builder) {
+      super(builder);
+    }
+    private TestRequest(boolean noInit) {}
+    
+    private static final TestRequest defaultInstance;
+    public static TestRequest getDefaultInstance() {
+      return defaultInstance;
+    }
+    
+    public TestRequest getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+    
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.orbekk.protobuf.Test.internal_static_com_orbekk_protobuf_TestRequest_descriptor;
+    }
+    
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.orbekk.protobuf.Test.internal_static_com_orbekk_protobuf_TestRequest_fieldAccessorTable;
+    }
+    
+    private int bitField0_;
+    // optional string id = 1;
+    public static final int ID_FIELD_NUMBER = 1;
+    private Object id_;
+    public boolean hasId() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    public String getId() {
+      Object ref = id_;
+      if (ref instanceof String) {
+        return (String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = 
+            (com.google.protobuf.ByteString) ref;
+        String s = bs.toStringUtf8();
+        if (com.google.protobuf.Internal.isValidUtf8(bs)) {
+          id_ = s;
+        }
+        return s;
+      }
+    }
+    private com.google.protobuf.ByteString getIdBytes() {
+      Object ref = id_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8((String) ref);
+        id_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    
+    private void initFields() {
+      id_ = "";
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+      
+      memoizedIsInitialized = 1;
+      return true;
+    }
+    
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      getSerializedSize();
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeBytes(1, getIdBytes());
+      }
+      getUnknownFields().writeTo(output);
+    }
+    
+    private int memoizedSerializedSize = -1;
+    public int getSerializedSize() {
+      int size = memoizedSerializedSize;
+      if (size != -1) return size;
+    
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBytesSize(1, getIdBytes());
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSerializedSize = size;
+      return size;
+    }
+    
+    @java.lang.Override
+    protected Object writeReplace() throws java.io.ObjectStreamException {
+      return super.writeReplace();
+    }
+    
+    public static com.orbekk.protobuf.Test.TestRequest parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static com.orbekk.protobuf.Test.TestRequest parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
+    }
+    public static com.orbekk.protobuf.Test.TestRequest parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static com.orbekk.protobuf.Test.TestRequest parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+        Object ref = id_;
+        if (!(ref instanceof String)) {
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+          return s;
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+      public Builder setId(String value) {
+        if (value == null) {
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+  bitField0_ |= 0x00000001;
+        id_ = value;
+        onChanged();
+        return this;
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+      public Builder clearId() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        id_ = getDefaultInstance().getId();
+        onChanged();
+        return this;
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+      void setId(com.google.protobuf.ByteString value) {
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+        onChanged();
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+      
+      // @@protoc_insertion_point(builder_scope:com.orbekk.protobuf.TestRequest)
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+      defaultInstance.initFields();
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+    
+    // @@protoc_insertion_point(class_scope:com.orbekk.protobuf.TestRequest)
+  }
+  
+  public interface TestResponseOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
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+    // optional string id = 1;
+    boolean hasId();
+    String getId();
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+  public static final class TestResponse extends
+      com.google.protobuf.GeneratedMessage
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+    // Use TestResponse.newBuilder() to construct.
+    private TestResponse(Builder builder) {
+      super(builder);
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+    
+    private static final TestResponse defaultInstance;
+    public static TestResponse getDefaultInstance() {
+      return defaultInstance;
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+    public TestResponse getDefaultInstanceForType() {
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+    }
+    
+    public static final com.google.protobuf.Descriptors.Descriptor
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+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
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+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
+    public static com.orbekk.protobuf.Test.TestResponse parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
+               .buildParsed();
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+    public static com.orbekk.protobuf.Test.TestResponse parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data).buildParsed();
+    }
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+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return newBuilder().mergeFrom(data, extensionRegistry)
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+        throws java.io.IOException {
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+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
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+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      Builder builder = newBuilder();
+      if (builder.mergeDelimitedFrom(input, extensionRegistry)) {
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+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder(com.orbekk.protobuf.Test.TestResponse prototype) {
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+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
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+      private Builder() {
+        maybeForceBuilderInitialization();
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+        id_ = "";
+        bitField0_ = (bitField0_ & ~0x00000001);
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+        if (!result.isInitialized()) {
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+        com.orbekk.protobuf.Test.TestResponse result = buildPartial();
+        if (!result.isInitialized()) {
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+        return result;
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+      public boolean hasId() {
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+        Object ref = id_;
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+          id_ = s;
+          return s;
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+      public Builder setId(String value) {
+        if (value == null) {
+    throw new NullPointerException();
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+  bitField0_ |= 0x00000001;
+        id_ = value;
+        onChanged();
+        return this;
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+      public Builder clearId() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        id_ = getDefaultInstance().getId();
+        onChanged();
+        return this;
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+      void setId(com.google.protobuf.ByteString value) {
+        bitField0_ |= 0x00000001;
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+          com.google.protobuf.RpcController controller,
+          com.orbekk.protobuf.Test.TestRequest request,
+          com.google.protobuf.RpcCallback<com.orbekk.protobuf.Test.TestResponse> done);
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+        public  void run(
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+            com.orbekk.protobuf.Test.TestRequest request,
+            com.google.protobuf.RpcCallback<com.orbekk.protobuf.Test.TestResponse> done) {
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+    
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+      return new com.google.protobuf.BlockingService() {
+        public final com.google.protobuf.Descriptors.ServiceDescriptor
+            getDescriptorForType() {
+          return getDescriptor();
+        }
+        
+        public final com.google.protobuf.Message callBlockingMethod(
+            com.google.protobuf.Descriptors.MethodDescriptor method,
+            com.google.protobuf.RpcController controller,
+            com.google.protobuf.Message request)
+            throws com.google.protobuf.ServiceException {
+          if (method.getService() != getDescriptor()) {
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+              "wrong service type.");
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+          switch(method.getIndex()) {
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+              return impl.run(controller, (com.orbekk.protobuf.Test.TestRequest)request);
+            default:
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+          }
+        }
+        
+        public final com.google.protobuf.Message
+            getRequestPrototype(
+            com.google.protobuf.Descriptors.MethodDescriptor method) {
+          if (method.getService() != getDescriptor()) {
+            throw new java.lang.IllegalArgumentException(
+              "Service.getRequestPrototype() given method " +
+              "descriptor for wrong service type.");
+          }
+          switch(method.getIndex()) {
+            case 0:
+              return com.orbekk.protobuf.Test.TestRequest.getDefaultInstance();
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+        }
+        
+        public final com.google.protobuf.Message
+            getResponsePrototype(
+            com.google.protobuf.Descriptors.MethodDescriptor method) {
+          if (method.getService() != getDescriptor()) {
+            throw new java.lang.IllegalArgumentException(
+              "Service.getResponsePrototype() given method " +
+              "descriptor for wrong service type.");
+          }
+          switch(method.getIndex()) {
+            case 0:
+              return com.orbekk.protobuf.Test.TestResponse.getDefaultInstance();
+            default:
+              throw new java.lang.AssertionError("Can't get here.");
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+        }
+        
+      };
+    }
+    
+    public abstract void run(
+        com.google.protobuf.RpcController controller,
+        com.orbekk.protobuf.Test.TestRequest request,
+        com.google.protobuf.RpcCallback<com.orbekk.protobuf.Test.TestResponse> done);
+    
+    public static final
+        com.google.protobuf.Descriptors.ServiceDescriptor
+        getDescriptor() {
+      return com.orbekk.protobuf.Test.getDescriptor().getServices().get(0);
+    }
+    public final com.google.protobuf.Descriptors.ServiceDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    
+    public final void callMethod(
+        com.google.protobuf.Descriptors.MethodDescriptor method,
+        com.google.protobuf.RpcController controller,
+        com.google.protobuf.Message request,
+        com.google.protobuf.RpcCallback<
+          com.google.protobuf.Message> done) {
+      if (method.getService() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "Service.callMethod() given method descriptor for wrong " +
+          "service type.");
+      }
+      switch(method.getIndex()) {
+        case 0:
+          this.run(controller, (com.orbekk.protobuf.Test.TestRequest)request,
+            com.google.protobuf.RpcUtil.<com.orbekk.protobuf.Test.TestResponse>specializeCallback(
+              done));
+          return;
+        default:
+          throw new java.lang.AssertionError("Can't get here.");
+      }
+    }
+    
+    public final com.google.protobuf.Message
+        getRequestPrototype(
+        com.google.protobuf.Descriptors.MethodDescriptor method) {
+      if (method.getService() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "Service.getRequestPrototype() given method " +
+          "descriptor for wrong service type.");
+      }
+      switch(method.getIndex()) {
+        case 0:
+          return com.orbekk.protobuf.Test.TestRequest.getDefaultInstance();
+        default:
+          throw new java.lang.AssertionError("Can't get here.");
+      }
+    }
+    
+    public final com.google.protobuf.Message
+        getResponsePrototype(
+        com.google.protobuf.Descriptors.MethodDescriptor method) {
+      if (method.getService() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "Service.getResponsePrototype() given method " +
+          "descriptor for wrong service type.");
+      }
+      switch(method.getIndex()) {
+        case 0:
+          return com.orbekk.protobuf.Test.TestResponse.getDefaultInstance();
+        default:
+          throw new java.lang.AssertionError("Can't get here.");
+      }
+    }
+    
+    public static Stub newStub(
+        com.google.protobuf.RpcChannel channel) {
+      return new Stub(channel);
+    }
+    
+    public static final class Stub extends com.orbekk.protobuf.Test.TestService implements Interface {
+      private Stub(com.google.protobuf.RpcChannel channel) {
+        this.channel = channel;
+      }
+      
+      private final com.google.protobuf.RpcChannel channel;
+      
+      public com.google.protobuf.RpcChannel getChannel() {
+        return channel;
+      }
+      
+      public  void run(
+          com.google.protobuf.RpcController controller,
+          com.orbekk.protobuf.Test.TestRequest request,
+          com.google.protobuf.RpcCallback<com.orbekk.protobuf.Test.TestResponse> done) {
+        channel.callMethod(
+          getDescriptor().getMethods().get(0),
+          controller,
+          request,
+          com.orbekk.protobuf.Test.TestResponse.getDefaultInstance(),
+          com.google.protobuf.RpcUtil.generalizeCallback(
+            done,
+            com.orbekk.protobuf.Test.TestResponse.class,
+            com.orbekk.protobuf.Test.TestResponse.getDefaultInstance()));
+      }
+    }
+    
+    public static BlockingInterface newBlockingStub(
+        com.google.protobuf.BlockingRpcChannel channel) {
+      return new BlockingStub(channel);
+    }
+    
+    public interface BlockingInterface {
+      public com.orbekk.protobuf.Test.TestResponse run(
+          com.google.protobuf.RpcController controller,
+          com.orbekk.protobuf.Test.TestRequest request)
+          throws com.google.protobuf.ServiceException;
+    }
+    
+    private static final class BlockingStub implements BlockingInterface {
+      private BlockingStub(com.google.protobuf.BlockingRpcChannel channel) {
+        this.channel = channel;
+      }
+      
+      private final com.google.protobuf.BlockingRpcChannel channel;
+      
+      public com.orbekk.protobuf.Test.TestResponse run(
+          com.google.protobuf.RpcController controller,
+          com.orbekk.protobuf.Test.TestRequest request)
+          throws com.google.protobuf.ServiceException {
+        return (com.orbekk.protobuf.Test.TestResponse) channel.callBlockingMethod(
+          getDescriptor().getMethods().get(0),
+          controller,
+          request,
+          com.orbekk.protobuf.Test.TestResponse.getDefaultInstance());
+      }
+      
+    }
+  }
+  
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_com_orbekk_protobuf_TestRequest_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_com_orbekk_protobuf_TestRequest_fieldAccessorTable;
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_com_orbekk_protobuf_TestResponse_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_com_orbekk_protobuf_TestResponse_fieldAccessorTable;
+  
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n,src/main/java/com/orbekk/protobuf/Test" +
+      ".proto\022\023com.orbekk.protobuf\"\031\n\013TestReque" +
+      "st\022\n\n\002id\030\001 \001(\t\"\032\n\014TestResponse\022\n\n\002id\030\001 \001" +
+      "(\t2Y\n\013TestService\022J\n\003Run\022 .com.orbekk.pr" +
+      "otobuf.TestRequest\032!.com.orbekk.protobuf" +
+      ".TestResponseB\003\210\001\001"
+    };
+    com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
+      new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
+        public com.google.protobuf.ExtensionRegistry assignDescriptors(
+            com.google.protobuf.Descriptors.FileDescriptor root) {
+          descriptor = root;
+          internal_static_com_orbekk_protobuf_TestRequest_descriptor =
+            getDescriptor().getMessageTypes().get(0);
+          internal_static_com_orbekk_protobuf_TestRequest_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_com_orbekk_protobuf_TestRequest_descriptor,
+              new java.lang.String[] { "Id", },
+              com.orbekk.protobuf.Test.TestRequest.class,
+              com.orbekk.protobuf.Test.TestRequest.Builder.class);
+          internal_static_com_orbekk_protobuf_TestResponse_descriptor =
+            getDescriptor().getMessageTypes().get(1);
+          internal_static_com_orbekk_protobuf_TestResponse_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_com_orbekk_protobuf_TestResponse_descriptor,
+              new java.lang.String[] { "Id", },
+              com.orbekk.protobuf.Test.TestResponse.class,
+              com.orbekk.protobuf.Test.TestResponse.Builder.class);
+          return null;
+        }
+      };
+    com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+        }, assigner);
+  }
+  
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/src/main/java/com/orbekk/protobuf/Test.proto b/src/main/java/com/orbekk/protobuf/Test.proto
new file mode 100644
index 0000000..3abb507
--- /dev/null
+++ b/src/main/java/com/orbekk/protobuf/Test.proto
@@ -0,0 +1,15 @@
+package com.orbekk.protobuf;
+
+option java_generic_services = true;
+
+message TestRequest {
+    optional string id = 1;
+}
+
+message TestResponse {
+    optional string id = 1;
+}
+
+service TestService {
+    rpc Run (TestRequest) returns (TestResponse);
+}