Package com.alibaba.dubbo.rpc

Examples of com.alibaba.dubbo.rpc.RpcResult

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    @Test
    public void testInvokeAutoFindMethod() throws RemotingException {
        mockInvoker = EasyMock.createMock(Invoker.class);
        EasyMock.expect(mockInvoker.getInterface()).andReturn(DemoService.class).anyTimes();
        EasyMock.expect(mockInvoker.getUrl()).andReturn(URL.valueOf("dubbo://127.0.0.1:20883/demo")).anyTimes();
        EasyMock.expect(mockInvoker.invoke((Invocation) EasyMock.anyObject())).andReturn(new RpcResult("ok")).anyTimes();
        mockChannel = EasyMock.createMock(Channel.class);
        EasyMock.expect(mockChannel.getAttribute("telnet.service")).andReturn(null).anyTimes();
        EasyMock.expect(mockChannel.getLocalAddress()).andReturn(NetUtils.toAddress("127.0.0.1:5555")).anyTimes();
        EasyMock.expect(mockChannel.getRemoteAddress()).andReturn(NetUtils.toAddress("127.0.0.1:20883")).anyTimes();
        EasyMock.replay(mockChannel, mockInvoker);
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        Assert.assertEquals( request.getId(), response.getId() );

        Assert.assertTrue( response.getResult() instanceof RpcResult );

        RpcResult result = ( RpcResult ) response.getResult();

        Assert.assertTrue( result.getResult() instanceof String );

        Assert.assertEquals( methodResult.success, result.getResult() );

    }
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        Response response = ( Response ) obj;

        Assert.assertTrue( response.getResult() instanceof RpcResult );

        RpcResult result = ( RpcResult ) response.getResult();

        Assert.assertTrue( result.hasException() );

        Assert.assertTrue( result.getException() instanceof RpcException );

    }
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        Channel channel = new MockedChannel( url );

        Request request = createRequest();

        RpcResult rpcResult = new RpcResult();
        rpcResult.setResult( "Hello, World!" );

        Response response = new Response();
        response.setResult( rpcResult );
        response.setId( request.getId() );
        ChannelBuffer bos = ChannelBuffers.dynamicBuffer(1024);

        ThriftCodec.RequestData rd = ThriftCodec.RequestData.create(
                ThriftCodec.getSeqId(), Demo.Iface.class.getName(), "echoString" );
        ThriftCodec.cachedRequest.putIfAbsent( request.getId(), rd );
        codec.encode( channel, bos, response );

        byte[] buf = new byte[bos.writerIndex() - 4];
        System.arraycopy( bos.array(), 4, buf, 0, bos.writerIndex() - 4 );

        ByteArrayInputStream bis = new ByteArrayInputStream( buf );

        if ( bis.markSupported() ) {
            bis.mark( 0 );
        }

        TIOStreamTransport transport = new TIOStreamTransport( bis );
        TBinaryProtocol protocol = new TBinaryProtocol( transport );

        Assert.assertEquals( ThriftCodec.MAGIC, protocol.readI16() );
        Assert.assertEquals( protocol.readI32() + 4, bos.writerIndex() );
        int headerLength = protocol.readI16();

        Assert.assertEquals( ThriftCodec.VERSION, protocol.readByte() );
        Assert.assertEquals( Demo.Iface.class.getName(), protocol.readString() );
        Assert.assertEquals( request.getId(), protocol.readI64() );

        if ( bis.markSupported() ) {
            bis.reset();
            bis.skip( headerLength );
        }

        TMessage message = protocol.readMessageBegin();
        Assert.assertEquals( "echoString", message.name );
        Assert.assertEquals( TMessageType.REPLY, message.type );
        Assert.assertEquals( ThriftCodec.getSeqId(), message.seqid );
        Demo.echoString_result result = new Demo.echoString_result();
        result.read( protocol );
        protocol.readMessageEnd();

        Assert.assertEquals( rpcResult.getValue(), result.getSuccess() );
    }
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        Channel channel = new MockedChannel( url );

        Request request = createRequest();

        RpcResult rpcResult = new RpcResult();
        String exceptionMessage = "failed";
        rpcResult.setException( new RuntimeException( exceptionMessage ) );

        Response response = new Response();
        response.setResult( rpcResult );
        response.setId( request.getId() );
        ChannelBuffer bos = ChannelBuffers.dynamicBuffer(1024);
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    }
   
    @Override
    protected Object decodeResponseData(Channel channel, ObjectInput in, Object request) throws IOException {
        Invocation invocation = (Invocation) request;
        RpcResult result = new RpcResult();

        byte flag = in.readByte();
        switch (flag) {
            case RESPONSE_NULL_VALUE:
                break;
            case RESPONSE_VALUE:
                try {
                    Type[] returnType = RpcUtils.getReturnTypes(invocation);
                    result.setValue(returnType == null || returnType.length == 0 ? in.readObject() :
                        (returnType.length == 1 ? in.readObject((Class<?>)returnType[0])
                                : in.readObject((Class<?>)returnType[0], returnType[1])));
                } catch (ClassNotFoundException e) {
                    throw new IOException(StringUtils.toString("Read response data failed.", e));
                }
                break;
            case RESPONSE_WITH_EXCEPTION:
                try {
                    Object obj = in.readObject();
                    if (obj instanceof Throwable == false) throw new IOException("Response data error, expect Throwable, but get " + obj);
                    result.setException((Throwable) obj);
                } catch (ClassNotFoundException e) {
                    throw new IOException(StringUtils.toString("Read response data failed.", e));
                }
                break;
            default:
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                                        e );
            }
        }
       
        if (resultList.size() == 0) {
            return new RpcResult((Object)null);
        } else if (resultList.size() == 1) {
            return resultList.iterator().next();
        }

        if (returnType == void.class) {
            return new RpcResult((Object)null);
        }

        if ( merger.startsWith(".") ) {
            merger = merger.substring(1);
            Method method;
            try {
                method = returnType.getMethod( merger, returnType );
            } catch ( NoSuchMethodException e ) {
                throw new RpcException( new StringBuilder( 32 )
                                                .append( "Can not merge result because missing method [ " )
                                                .append( merger )
                                                .append( " ] in class [ " )
                                                .append( returnType.getClass().getName() )
                                                .append( " ]" )
                                                .toString() );
            }
            if ( method != null ) {
                if ( !Modifier.isPublic( method.getModifiers() ) ) {
                    method.setAccessible( true );
                }
                result = resultList.remove( 0 ).getValue();
                try {
                    if ( method.getReturnType() != void.class
                            && method.getReturnType().isAssignableFrom( result.getClass() ) ) {
                        for ( Result r : resultList ) {
                            result = method.invoke( result, r.getValue() );
                        }
                    } else {
                        for ( Result r : resultList ) {
                            method.invoke( result, r.getValue() );
                        }
                    }
                } catch ( Exception e ) {
                    throw new RpcException(
                            new StringBuilder( 32 )
                                    .append( "Can not merge result: " )
                                    .append( e.getMessage() ).toString(),
                            e );
                }
            } else {
                throw new RpcException(
                        new StringBuilder( 32 )
                                .append( "Can not merge result because missing method [ " )
                                .append( merger )
                                .append( " ] in class [ " )
                                .append( returnType.getClass().getName() )
                                .append( " ]" )
                                .toString() );
            }
        } else {
            Merger resultMerger;
            if (ConfigUtils.isDefault(merger)) {
                resultMerger = MergerFactory.getMerger(returnType);
            } else {
                resultMerger = ExtensionLoader.getExtensionLoader(Merger.class).getExtension(merger);
            }
            if (resultMerger != null) {
                List<Object> rets = new ArrayList<Object>(resultList.size());
                for(Result r : resultList) {
                    rets.add(r.getValue());
                }
                result = resultMerger.merge(
                        rets.toArray((Object[])Array.newInstance(returnType, 0)));
            } else {
                throw new RpcException( "There is no merger to merge result." );
            }
        }
        return new RpcResult( result );
    }
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                    // 是Dubbo本身的异常，直接抛出
                    if (exception instanceof RpcException) {
                        return result;
                    }
                    // 否则，包装成RuntimeException抛给客户端
                    return new RpcResult(new RuntimeException(StringUtils.toString(exception)));
                } catch (Throwable e) {
                    logger.warn(e.getMessage(), e);
                    return result;
                }
            }
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@Activate(group = Constants.PROVIDER)
public class EchoFilter implements Filter {

  public Result invoke(Invoker<?> invoker, Invocation inv) throws RpcException {
    if(inv.getMethodName().equals(Constants.$ECHO) && inv.getArguments() != null && inv.getArguments().length == 1 )
      return new RpcResult(inv.getArguments()[0]);
    return invoker.invoke(inv);
  }
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        try {
            return doInvoke(invocation);
        } catch (InvocationTargetException e) { // biz exception
            Throwable te = e.getTargetException();
            if (te == null) {
                return new RpcResult(e);
            } else {
                if (te instanceof RpcException) {
                    ((RpcException) te).setCode(RpcException.BIZ_EXCEPTION);
                }
                return new RpcResult(te);
            }
        } catch (RpcException e) {
            if (e.isBiz()) {
                return new RpcResult(e);
            } else {
                throw e;
            }
        } catch (Throwable e) {
            return new RpcResult(e);
        }
    }
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Related Classes of com.alibaba.dubbo.rpc.RpcResult

  • com.alibaba.dubbo.cache.filter.CacheFilter
  • com.alibaba.dubbo.rpc.cluster.support.FailbackClusterInvoker
  • com.alibaba.dubbo.rpc.cluster.support.FailsafeClusterInvoker
  • com.alibaba.dubbo.rpc.cluster.support.MergeableClusterInvoker
  • com.alibaba.dubbo.rpc.cluster.support.MergeableClusterInvokerTest
  • com.alibaba.dubbo.rpc.cluster.support.wrapper.MockClusterInvoker
  • com.alibaba.dubbo.rpc.filter.CompatibleFilter
  • com.alibaba.dubbo.rpc.filter.CompatibleFilterFilterTest
  • com.alibaba.dubbo.rpc.filter.ContextFilterTest
  • com.alibaba.dubbo.rpc.filter.EchoFilter
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