org.apache.rocketmq.common.protocol.header.ViewMessageRequestHeader Java Examples

The following examples show how to use org.apache.rocketmq.common.protocol.header.ViewMessageRequestHeader. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: QueryMessageProcessor.java    From DDMQ with Apache License 2.0 5 votes vote down vote up 
public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(null);
    final ViewMessageRequestHeader requestHeader =
        (ViewMessageRequestHeader) request.decodeCommandCustomHeader(ViewMessageRequestHeader.class);

    response.setOpaque(request.getOpaque());

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

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

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

    return response;
}
Example #2
Source File: QueryMessageProcessor.java    From rocketmq with Apache License 2.0 5 votes vote down vote up 
public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(null);
    final ViewMessageRequestHeader requestHeader =
        (ViewMessageRequestHeader) request.decodeCommandCustomHeader(ViewMessageRequestHeader.class);

    response.setOpaque(request.getOpaque());

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

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

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

    return response;
}
Example #3
Source File: QueryMessageProcessor.java    From DDMQ with Apache License 2.0 5 votes vote down vote up 
public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(null);
    final ViewMessageRequestHeader requestHeader =
        (ViewMessageRequestHeader) request.decodeCommandCustomHeader(ViewMessageRequestHeader.class);

    response.setOpaque(request.getOpaque());

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

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

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

    return response;
}
Example #4
Source File: QueryMessageProcessor.java    From rocketmq-all-4.1.0-incubating with Apache License 2.0 5 votes vote down vote up 
public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(null);
    final ViewMessageRequestHeader requestHeader =
        (ViewMessageRequestHeader) request.decodeCommandCustomHeader(ViewMessageRequestHeader.class);

    response.setOpaque(request.getOpaque());

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

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

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

    return response;
}
Example #5
Source File: QueryMessageProcessor.java    From rocketmq_trans_message with Apache License 2.0 5 votes vote down vote up 
public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(null);
    final ViewMessageRequestHeader requestHeader =
        (ViewMessageRequestHeader) request.decodeCommandCustomHeader(ViewMessageRequestHeader.class);

    response.setOpaque(request.getOpaque());

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

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

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

    return response;
}
Example #6
Source File: QueryMessageProcessor.java    From rocketmq with Apache License 2.0 5 votes vote down vote up 
public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(null);
    final ViewMessageRequestHeader requestHeader =
        (ViewMessageRequestHeader) request.decodeCommandCustomHeader(ViewMessageRequestHeader.class);

    response.setOpaque(request.getOpaque());

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

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

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

    return response;
}
Example #7
Source File: QueryMessageProcessor.java    From rocketmq-4.3.0 with Apache License 2.0 4 votes vote down vote up 
public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(null);
        final ViewMessageRequestHeader requestHeader =
            (ViewMessageRequestHeader) request.decodeCommandCustomHeader(ViewMessageRequestHeader.class);

        response.setOpaque(request.getOpaque());

//        按offste查询消息=》
        final SelectMappedBufferResult selectMappedBufferResult =
            this.brokerController.getMessageStore().selectOneMessageByOffset(requestHeader.getOffset());
        if (selectMappedBufferResult != null) {
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);

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

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

        return response;
    }
Example #8
Source File: QueryMessageProcessor.java    From rocketmq-read with Apache License 2.0 4 votes vote down vote up 
/**
 * 检查消息根据id
 * @param ctx ctx
 * @param request request
 * @return ;
 * @throws RemotingCommandException ;
 */
public RemotingCommand viewMessageById(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {

    final RemotingCommand response = RemotingCommand.createResponseCommand(null);
    final ViewMessageRequestHeader requestHeader =
        (ViewMessageRequestHeader) request.decodeCommandCustomHeader(ViewMessageRequestHeader.class);

    response.setOpaque(request.getOpaque());

    /*
     * 根据offset 查询一个消息
     */
    final SelectMappedBufferResult selectMappedBufferResult =
        this.brokerController.getMessageStore().selectOneMessageByOffset(requestHeader.getOffset());

    if (selectMappedBufferResult != null) {
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);

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

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

    return response;
}