Package org.apache.cassandra.db

Examples of org.apache.cassandra.db.ReadResponse

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            try
            {
                byte[] body = response.getMessageBody();
                ByteArrayInputStream bufIn = new ByteArrayInputStream(body);
                ReadResponse result = ReadResponse.serializer().deserialize(new DataInputStream(bufIn));
                byte[] digest = result.digest();

                if (!Arrays.equals(dataDigest, digest))
                {
                    ReadCommand readCommand = constructReadMessage(false);
                    DataRepairHandler handler = new DataRepairHandler();
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        public DataRepairHandler() throws IOException
        {
            readResponseResolver_ = new ReadResponseResolver(readCommand_.table, readCommand_.key, replicas_.size());
            majority_ = (replicas_.size() / 2) + 1;
            // wrap original data Row in a response Message so it doesn't need to be special-cased in the resolver
            ReadResponse readResponse = new ReadResponse(row_);
            Message fakeMessage = new Message(dataSource, StageManager.RESPONSE_STAGE, StorageService.Verb.READ_RESPONSE, ArrayUtils.EMPTY_BYTE_ARRAY);
            responses_.add(fakeMessage);
            readResponseResolver_.injectPreProcessed(fakeMessage, readResponse);
        }
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            byte[] body = response.getMessageBody();
            bufIn.reset(body, body.length);
            try
            {
                long start = System.currentTimeMillis();
                ReadResponse result = ReadResponse.serializer().deserialize(bufIn);
                if (logger_.isDebugEnabled())
                  logger_.debug( "Response deserialization time : " + (System.currentTimeMillis() - start) + " ms.");
          if(!result.isDigestQuery())
          {
            rowList.add(result.row());
            endPoints.add(response.getFrom());
            key = result.row().key();
            table = result.row().getTable();
          }
          else
          {
            digest = result.digest();
            isDigestQuery = true;
          }
            }
            catch( IOException ex )
            {
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            byte[] body = response.getMessageBody();
      DataInputBuffer bufIn = new DataInputBuffer();
            bufIn.reset(body, body.length);
            try
            {
          ReadResponse result = ReadResponse.serializer().deserialize(bufIn);
          if(!result.isDigestQuery())
          {
            isDataPresent = true;
          }
                bufIn.close();
            }
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      {
        byte[] body = response.getMessageBody();           
              bufIn.reset(body, body.length);
              try
              {                
                  ReadResponse result = ReadResponse.serializer().deserialize(bufIn);
                  byte[] digest = result.digest();
                  if( !Arrays.equals(row_.digest(), digest) )
          {
                    doReadRepair();
                    break;
          }
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            try
            {
                byte[] body = response.getMessageBody();
                ByteArrayInputStream bufIn = new ByteArrayInputStream(body);
                ReadResponse result = ReadResponse.serializer().deserialize(new DataInputStream(bufIn));
                ByteBuffer digest = result.digest();

                if (!localDigest.equals(digest))
                {
                    ReadResponseResolver readResponseResolver = new ReadResponseResolver(table_);
                    IAsyncCallback responseHandler = new DataRepairHandler(row_, replicas_.size(), readResponseResolver);
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        public DataRepairHandler(Row localRow, int responseCount, ReadResponseResolver readResponseResolver) throws IOException
        {
            readResponseResolver_ = readResponseResolver;
            majority_ = (responseCount / 2) + 1;
            // wrap localRow in a response Message so it doesn't need to be special-cased in the resolver
            ReadResponse readResponse = new ReadResponse(localRow);
            Message fakeMessage = new Message(FBUtilities.getLocalAddress(), StorageService.Verb.INTERNAL_RESPONSE, ArrayUtils.EMPTY_BYTE_ARRAY);
            responses_.add(fakeMessage);
            readResponseResolver_.injectPreProcessed(fakeMessage, readResponse);
        }
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        */
    for (Message response : responses)
    {                     
            byte[] body = response.getMessageBody();
            ByteArrayInputStream bufIn = new ByteArrayInputStream(body);
            ReadResponse result = ReadResponse.serializer().deserialize(new DataInputStream(bufIn));
            if (result.isDigestQuery())
            {
                digest = result.digest();
                isDigestQuery = true;
            }
            else
            {
                versions.add(result.row().cf);
                endPoints.add(response.getFrom());
                key = result.row().key;
            }
        }
    // If there was a digest query compare it with all the data digests
    // If there is a mismatch then throw an exception so that read repair can happen.
        if (isDigestQuery)
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        {
            byte[] body = response.getMessageBody();
            ByteArrayInputStream bufIn = new ByteArrayInputStream(body);
            try
            {
                ReadResponse result = ReadResponse.serializer().deserialize(new DataInputStream(bufIn));
                if (!result.isDigestQuery())
                {
                    isDataPresent = true;
                }
                bufIn.close();
            }
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            {
                try
                {
                    byte[] body = response.getMessageBody();
                    ByteArrayInputStream bufIn = new ByteArrayInputStream(body);
                    ReadResponse result = ReadResponse.serializer().deserialize(new DataInputStream(bufIn));
                    byte[] digest = result.digest();
                    if (!Arrays.equals(ColumnFamily.digest(row_.cf), digest))
                    {
                        doReadRepair();
                        break;
                    }
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Related Classes of org.apache.cassandra.db.ReadResponse

  • org.apache.cassandra.net.Message
  • org.apache.cassandra.service.AbstractRowResolver
  • org.apache.cassandra.service.ConsistencyChecker$DataRepairHandler
  • org.apache.cassandra.service.ConsistencyChecker$DigestResponseHandler
  • org.apache.cassandra.service.ConsistencyManager$DigestResponseHandler
  • org.apache.cassandra.service.ReadResponseResolver
  • org.apache.cassandra.service.RowDigestResolver
  • org.apache.cassandra.service.StorageProxy
  • org.apache.cassandra.test.DataImporter
  • java.io.DataOutputStream
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