Package org.apache.cassandra.db

Examples of org.apache.cassandra.db.ReadCommand

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        readCommand_ = readCommand;
    }

  public void run()
  {
        ReadCommand readCommandDigestOnly = constructReadMessage(true);
    try
    {
      Message message = readCommandDigestOnly.makeReadMessage();
            logger_.debug("Reading consistency digest for " + readCommand_.key + " from " + message.getMessageId() + "@[" + StringUtils.join(replicas_, ", ") + "]");
            MessagingService.getMessagingInstance().sendRR(message, replicas_.toArray(new EndPoint[replicas_.size()]), new DigestResponseHandler());
    }
    catch (IOException ex)
    {
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    }
  }
   
    private ReadCommand constructReadMessage(boolean isDigestQuery)
    {
        ReadCommand readCommand = readCommand_.copy();
        readCommand.setDigestQuery(isDigestQuery);
        return readCommand;
    }
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    {
      IResponseResolver<Row> readResponseResolver = new ReadResponseResolver();
            /* Add the local storage endpoint to the replicas_ list */
            replicas_.add(StorageService.getLocalStorageEndPoint());
      IAsyncCallback responseHandler = new DataRepairHandler(ConsistencyManager.this.replicas_.size(), readResponseResolver); 
            ReadCommand readCommand = constructReadMessage(false);
            Message message = readCommand.makeReadMessage();
            logger_.debug("Performing read repair for " + readCommand_.key + " to " + message.getMessageId() + "@[" + StringUtils.join(replicas_, ", ") + "]");
      MessagingService.getMessagingInstance().sendRR(message, replicas_.toArray(new EndPoint[replicas_.size()]), responseHandler);
    }
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        Row row = null;
        try
        {
            String key = (String)(rowKey_.get());
            ReadCommand readCommand = new ColumnReadCommand(cfMetaData_.tableName, key, columnFamily_column);
            row = StorageProxy.readProtocol(readCommand, StorageService.ConsistencyLevel.WEAK);
        }
        catch (Exception e)
        {
            logger_.error(LogUtil.throwableToString(e));
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            catch (DigestMismatchException e)
            {
                if (logger.isDebugEnabled())
                    logger.debug("Digest mismatch:", e);

                ReadCommand readCommand = (ReadCommand) command;
                final RowRepairResolver repairResolver = new RowRepairResolver(readCommand.table, readCommand.key);
                IAsyncCallback repairHandler = new AsyncRepairCallback(repairResolver, endpoints.size());

                for (InetAddress endpoint : endpoints)
                    MessagingService.instance().sendRR(readCommand, endpoint, repairHandler);
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        assert replicas_.contains(FBUtilities.getLocalAddress());
    }

    public void run()
  {
        ReadCommand readCommandDigestOnly = constructReadMessage(true);
    try
    {
      Message message = readCommandDigestOnly.makeReadMessage();
            if (logger_.isDebugEnabled())
              logger_.debug("Reading consistency digest for " + readCommand_.key + " from " + message.getMessageId() + "@[" + StringUtils.join(replicas_, ", ") + "]");

            MessagingService.instance.addCallback(new DigestResponseHandler(), message.getMessageId());
            for (InetAddress endpoint : replicas_)
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    }
  }

    private ReadCommand constructReadMessage(boolean isDigestQuery)
    {
        ReadCommand readCommand = readCommand_.copy();
        readCommand.setDigestQuery(isDigestQuery);
        return readCommand;
    }
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                if (!Arrays.equals(localDigest, digest))
                {
                    ReadResponseResolver readResponseResolver = new ReadResponseResolver(table_, replicas_.size());
                    IAsyncCallback responseHandler = new DataRepairHandler(row_, replicas_.size(), readResponseResolver);

                    ReadCommand readCommand = constructReadMessage(false);
                    Message message = readCommand.makeReadMessage();
                    if (logger_.isDebugEnabled())
                        logger_.debug("Digest mismatch; re-reading " + readCommand_.key + " from " + message.getMessageId() + "@[" + StringUtils.join(replicas_, ", ") + "]");                        
                    MessagingService.instance.addCallback(responseHandler, message.getMessageId());
                    for (InetAddress endpoint : replicas_)
                    {
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                if (logger.isDebugEnabled())
                    logger.debug("Digest mismatch:", e);
               
                ReadRepairMetrics.repairedBackground.mark();
               
                ReadCommand readCommand = (ReadCommand) command;
                final RowDataResolver repairResolver = new RowDataResolver(readCommand.ksName, readCommand.key, readCommand.filter(), readCommand.timestamp, endpoints.size());
                AsyncRepairCallback repairHandler = new AsyncRepairCallback(repairResolver, endpoints.size());

                MessageOut<ReadCommand> message = ((ReadCommand) command).createMessage();
                for (InetAddress endpoint : endpoints)
                    MessagingService.instance().sendRR(message, endpoint, repairHandler);
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        }
    }

    protected void makeDigestRequests(Iterable<InetAddress> endpoints)
    {
        ReadCommand digestCommand = command.copy();
        digestCommand.setDigestQuery(true);
        MessageOut<?> message = digestCommand.createMessage();
        for (InetAddress endpoint : endpoints)
        {
            if (isLocalRequest(endpoint))
            {
                logger.trace("reading digest locally");
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