Package com.alibaba.rocketmq.common.protocol.header

Examples of com.alibaba.rocketmq.common.protocol.header.ViewMessageRequestHeader

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    public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
            throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(null);
        final ViewMessageRequestHeader requestHeader =
                (ViewMessageRequestHeader) request.decodeCommandCustomHeader(ViewMessageRequestHeader.class);

        // 由于使用sendfile，所以必须要设置
        response.setOpaque(request.getOpaque());

        final SelectMapedBufferResult selectMapedBufferResult =
                this.brokerController.getMessageStore().selectOneMessageByOffset(requestHeader.getOffset());
        if (selectMapedBufferResult != null) {
            response.setCode(ResponseCode.SUCCESS_VALUE);
            response.setRemark(null);

            try {
                FileRegion fileRegion =
                        new OneMessageTransfer(response.encodeHeader(selectMapedBufferResult.getSize()),
                            selectMapedBufferResult);
                ctx.channel().writeAndFlush(fileRegion).addListener(new ChannelFutureListener() {
                    @Override
                    public void operationComplete(ChannelFuture future) throws Exception {
                        selectMapedBufferResult.release();
                        if (!future.isSuccess()) {
                            log.error("transfer one message by pagecache failed, ", future.cause());
                        }
                    }
                });
            }
            catch (Throwable e) {
                log.error("", e);
                selectMapedBufferResult.release();
            }

            return null;
        }
        else {
            response.setCode(ResponseCode.SYSTEM_ERROR_VALUE);
            response.setRemark("can not find message by the offset, " + requestHeader.getOffset());
        }

        return response;
    }
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    /**
     * 根据时间查询Offset
     */
    public MessageExt viewMessage(final String addr, final long phyoffset, final long timeoutMillis)
            throws RemotingException, MQBrokerException, InterruptedException {
        ViewMessageRequestHeader requestHeader = new ViewMessageRequestHeader();
        requestHeader.setOffset(phyoffset);
        RemotingCommand request =
                RemotingCommand.createRequestCommand(RequestCode.VIEW_MESSAGE_BY_ID, requestHeader);

        RemotingCommand response = this.remotingClient.invokeSync(addr, request, timeoutMillis);
        assert response != null;
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    /**
     * 根据时间查询Offset
     */
    public MessageExt viewMessage(final String addr, final long phyoffset, final long timeoutMillis)
            throws RemotingException, MQBrokerException, InterruptedException {
        ViewMessageRequestHeader requestHeader = new ViewMessageRequestHeader();
        requestHeader.setOffset(phyoffset);
        RemotingCommand request =
                RemotingCommand.createRequestCommand(RequestCode.VIEW_MESSAGE_BY_ID, requestHeader);

        RemotingCommand response = this.remotingClient.invokeSync(addr, request, timeoutMillis);
        assert response != null;
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    /**
     * 根据时间查询Offset
     */
    public MessageExt viewMessage(final String addr, final long phyoffset, final long timeoutMillis)
            throws RemotingException, MQBrokerException, InterruptedException {
        ViewMessageRequestHeader requestHeader = new ViewMessageRequestHeader();
        requestHeader.setOffset(phyoffset);
        RemotingCommand request =
                RemotingCommand.createRequestCommand(MQRequestCode.VIEW_MESSAGE_BY_ID_VALUE, requestHeader);

        RemotingCommand response = this.remotingClient.invokeSync(addr, request, timeoutMillis);
        assert response != null;
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    public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
            throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(null);
        final ViewMessageRequestHeader requestHeader =
                (ViewMessageRequestHeader) request.decodeCommandCustomHeader(ViewMessageRequestHeader.class);

        // 由于使用sendfile，所以必须要设置
        response.setOpaque(request.getOpaque());

        final SelectMapedBufferResult selectMapedBufferResult =
                this.brokerController.getMessageStore().selectOneMessageByOffset(requestHeader.getOffset());
        if (selectMapedBufferResult != null) {
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);

            try {
                FileRegion fileRegion =
                        new OneMessageTransfer(response.encodeHeader(selectMapedBufferResult.getSize()),
                            selectMapedBufferResult);
                ctx.channel().writeAndFlush(fileRegion).addListener(new ChannelFutureListener() {
                    @Override
                    public void operationComplete(ChannelFuture future) throws Exception {
                        selectMapedBufferResult.release();
                        if (!future.isSuccess()) {
                            log.error("transfer one message by pagecache failed, ", future.cause());
                        }
                    }
                });
            }
            catch (Throwable e) {
                log.error("", e);
                selectMapedBufferResult.release();
            }

            return null;
        }
        else {
            response.setCode(ResponseCode.SYSTEM_ERROR);
            response.setRemark("can not find message by the offset, " + requestHeader.getOffset());
        }

        return response;
    }
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    public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
            throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(null);
        final ViewMessageRequestHeader requestHeader =
                (ViewMessageRequestHeader) request.decodeCommandCustomHeader(ViewMessageRequestHeader.class);

        // 由于使用sendfile，所以必须要设置
        response.setOpaque(request.getOpaque());

        final SelectMapedBufferResult selectMapedBufferResult =
                this.brokerController.getMessageStore().selectOneMessageByOffset(requestHeader.getOffset());
        if (selectMapedBufferResult != null) {
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);

            try {
                FileRegion fileRegion =
                        new OneMessageTransfer(response.encodeHeader(selectMapedBufferResult.getSize()),
                            selectMapedBufferResult);
                ctx.channel().writeAndFlush(fileRegion).addListener(new ChannelFutureListener() {
                    @Override
                    public void operationComplete(ChannelFuture future) throws Exception {
                        selectMapedBufferResult.release();
                        if (!future.isSuccess()) {
                            log.error("transfer one message by pagecache failed, ", future.cause());
                        }
                    }
                });
            }
            catch (Throwable e) {
                log.error("", e);
                selectMapedBufferResult.release();
            }

            return null;
        }
        else {
            response.setCode(ResponseCode.SYSTEM_ERROR);
            response.setRemark("can not find message by the offset, " + requestHeader.getOffset());
        }

        return response;
    }
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    /**
     * 根据时间查询Offset
     */
    public MessageExt viewMessage(final String addr, final long phyoffset, final long timeoutMillis)
            throws RemotingException, MQBrokerException, InterruptedException {
        ViewMessageRequestHeader requestHeader = new ViewMessageRequestHeader();
        requestHeader.setOffset(phyoffset);
        RemotingCommand request =
                RemotingCommand.createRequestCommand(RequestCode.VIEW_MESSAGE_BY_ID, requestHeader);

        RemotingCommand response = this.remotingClient.invokeSync(addr, request, timeoutMillis);
        assert response != null;
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    /**
     * 根据时间查询Offset
     */
    public MessageExt viewMessage(final String addr, final long phyoffset, final long timeoutMillis)
            throws RemotingException, MQBrokerException, InterruptedException {
        ViewMessageRequestHeader requestHeader = new ViewMessageRequestHeader();
        requestHeader.setOffset(phyoffset);
        RemotingCommand request =
                RemotingCommand.createRequestCommand(RequestCode.VIEW_MESSAGE_BY_ID, requestHeader);

        RemotingCommand response = this.remotingClient.invokeSync(addr, request, timeoutMillis);
        assert response != null;
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Related Classes of com.alibaba.rocketmq.common.protocol.header.ViewMessageRequestHeader

  • com.alibaba.rocketmq.broker.processor.QueryMessageProcessor
  • com.alibaba.rocketmq.client.impl.MQClientAPIImpl
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