if (null != bootstrapStatsCollector)
{
bootstrapStatsCollector.registerErrBootstrap();
}
throw new RequestProcessingException(e);
}
DatabusComponentStatus componentStatus = _componentStatus.getStatusSnapshot();
if (!componentStatus.isRunningStatus())
{
if (null != bootstrapStatsCollector)
bootstrapStatsCollector.registerErrBootstrap();
throw new RequestProcessingException(componentStatus.getMessage());
}
String partitionInfoString = request.getParams().getProperty(PARTITION_INFO_PARAM);
DbusKeyFilter keyFilter = null;
if ( (null != partitionInfoString) && (!partitionInfoString.isEmpty()))
{
try
{
keyFilter = KeyFilterConfigJSONFactory.parseDbusKeyFilter(partitionInfoString);
if ( isDebug) LOG.debug("ServerSideFilter is :" + keyFilter);
} catch ( Exception ex) {
String msg = "Unable to parse partitionInfo from request. PartitionInfo was :" + partitionInfoString;
LOG.error(msg,ex);
throw new RequestProcessingException(msg,ex);
}
}
String outputFormat = request.getParams().getProperty(OUTPUT_PARAM);
Encoding enc = Encoding.BINARY;
if ( null != outputFormat)
{
try
{
enc = Encoding.valueOf(outputFormat.toUpperCase());
} catch (Exception ex) {
LOG.error("Unable to find the output format for bootstrap request for " + outputFormat + ". Using Binary!!", ex);
}
}
processor.setKeyFilter(keyFilter);
String checkpointString = request.getRequiredStringParam(CHECKPOINT_PARAM);
int bufferMarginSpace = DEFAULT_BUFFER_MARGIN_SPACE;
if ( null != _serverHostPort)
{
bufferMarginSpace = Math.max(bufferMarginSpace, (_serverHostPort.length() + Checkpoint.BOOTSTRAP_SERVER_INFO.length() + DEFAULT_JSON_OVERHEAD_BYTES));
}
int clientFreeBufferSize = request.getRequiredIntParam(BATCHSIZE_PARAM) - checkpointString.length() - bufferMarginSpace;
BootstrapEventWriter writer = null;
if(_config.getPredicatePushDown())
writer = createEventWriter(request, clientFreeBufferSize, null, enc);
else
writer = createEventWriter(request, clientFreeBufferSize, keyFilter, enc);
Checkpoint cp = new Checkpoint(checkpointString);
DbusClientMode consumptionMode = cp.getConsumptionMode();
LOG.info("Bootstrap request received: " +
"fetchSize=" + clientFreeBufferSize +
", consumptionMode=" + consumptionMode +
", checkpoint=" + checkpointString +
", predicatePushDown=" + _config.getPredicatePushDown()
);
try
{
boolean phaseCompleted = false;
switch (consumptionMode)
{
case BOOTSTRAP_SNAPSHOT:
phaseCompleted = processor.streamSnapShotRows(new Checkpoint(
checkpointString), writer);
break;
case BOOTSTRAP_CATCHUP:
phaseCompleted = processor.streamCatchupRows(new Checkpoint(
checkpointString), writer);
break;
default:
if (null != bootstrapStatsCollector)
bootstrapStatsCollector.registerErrBootstrap();
throw new RequestProcessingException("Unexpected mode: "
+ consumptionMode);
}
if (null != bootstrapStatsCollector)
bootstrapStatsCollector.registerBootStrapReq(cp, System.currentTimeMillis()-startTime, clientFreeBufferSize);
if (writer.getNumRowsWritten() == 0 && writer.getSizeOfPendingEvent() > 0)
{
// Append a header to indicate to the client that we do have at least one event to
// send, but it is too large to fit into client's offered buffer.
request.getResponseContent().addMetadata(DatabusHttpHeaders.DATABUS_PENDING_EVENT_SIZE,
writer.getSizeOfPendingEvent());
if (isDebug)
{
LOG.debug("Returning 0 events but have pending event of size " + writer.getSizeOfPendingEvent());
}
}
if (phaseCompleted)
{
request.getResponseContent().setMetadata(BootstrapProcessor.PHASE_COMPLETED_HEADER_NAME, BootstrapProcessor.PHASE_COMPLETED_HEADER_TRUE);
}
}
catch (BootstrapDatabaseTooOldException e)
{
if (null != bootstrapStatsCollector)
bootstrapStatsCollector.registerErrDatabaseTooOld();
LOG.error("Bootstrap database is too old!", e);
throw new RequestProcessingException(e);
}
catch (BootstrapDBException e)
{
if (null != bootstrapStatsCollector)
bootstrapStatsCollector.registerErrBootstrap();
throw new RequestProcessingException(e);
}
catch (SQLException e)
{
if (null != bootstrapStatsCollector)
bootstrapStatsCollector.registerErrSqlException();
throw new RequestProcessingException(e);
}
catch (BootstrapProcessingException e)
{
if (null != bootstrapStatsCollector)
bootstrapStatsCollector.registerErrBootstrap();
throw new RequestProcessingException(e);
}
}
finally
{
if ( null != processor)