Examples with UnsafeInmemoryHolder org.apache.carbondata.processing.newflow.sort.unsafe.holder.UnsafeInmemoryHolder used on opensource projects

Example 1 with UnsafeInmemoryHolder

use of org.apache.carbondata.processing.newflow.sort.unsafe.holder.UnsafeInmemoryHolder in project carbondata by apache.

the class UnsafeSingleThreadFinalSortFilesMerger method startSorting.

/**
   * Below method will be used to start storing process This method will get
   * all the temp files present in sort temp folder then it will create the
   * record holder heap and then it will read first record from each file and
   * initialize the heap
   *
   */
private void startSorting(UnsafeCarbonRowPage[] rowPages, List<UnsafeInMemoryIntermediateDataMerger> merges) throws CarbonDataWriterException {
    try {
        File[] filesToMergeSort = getFilesToMergeSort();
        this.fileCounter = rowPages.length + filesToMergeSort.length + merges.size();
        if (fileCounter == 0) {
            LOGGER.info("No files to merge sort");
            return;
        }
        LOGGER.info("Number of row pages: " + this.fileCounter);
        // create record holder heap
        createRecordHolderQueue();
        // iterate over file list and create chunk holder and add to heap
        LOGGER.info("Started adding first record from each page");
        for (final UnsafeCarbonRowPage rowPage : rowPages) {
            SortTempChunkHolder sortTempFileChunkHolder = new UnsafeInmemoryHolder(rowPage, parameters.getDimColCount() + parameters.getComplexDimColCount() + parameters.getMeasureColCount(), parameters.getNumberOfSortColumns());
            // initialize
            sortTempFileChunkHolder.readRow();
            recordHolderHeapLocal.add(sortTempFileChunkHolder);
        }
        for (final UnsafeInMemoryIntermediateDataMerger merger : merges) {
            SortTempChunkHolder sortTempFileChunkHolder = new UnsafeFinalMergePageHolder(merger, parameters.getNoDictionarySortColumn(), parameters.getDimColCount() + parameters.getComplexDimColCount() + parameters.getMeasureColCount());
            // initialize
            sortTempFileChunkHolder.readRow();
            recordHolderHeapLocal.add(sortTempFileChunkHolder);
        }
        for (final File file : filesToMergeSort) {
            SortTempChunkHolder sortTempFileChunkHolder = new UnsafeSortTempFileChunkHolder(file, parameters);
            // initialize
            sortTempFileChunkHolder.readRow();
            recordHolderHeapLocal.add(sortTempFileChunkHolder);
        }
        LOGGER.info("Heap Size" + this.recordHolderHeapLocal.size());
    } catch (Exception e) {
        LOGGER.error(e);
        throw new CarbonDataWriterException(e.getMessage());
    }
}