Examples with HoodieFileReaderFactory org.apache.hudi.io.storage.HoodieFileReaderFactory used on opensource projects

Example 1 with HoodieFileReaderFactory

use of org.apache.hudi.io.storage.HoodieFileReaderFactory in project hudi by apache.

the class JavaMergeHelper method runMerge.

@Override
public void runMerge(HoodieTable<T, List<HoodieRecord<T>>, List<HoodieKey>, List<WriteStatus>> table, HoodieMergeHandle<T, List<HoodieRecord<T>>, List<HoodieKey>, List<WriteStatus>> upsertHandle) throws IOException {
    final boolean externalSchemaTransformation = table.getConfig().shouldUseExternalSchemaTransformation();
    Configuration cfgForHoodieFile = new Configuration(table.getHadoopConf());
    HoodieMergeHandle<T, List<HoodieRecord<T>>, List<HoodieKey>, List<WriteStatus>> mergeHandle = upsertHandle;
    HoodieBaseFile baseFile = mergeHandle.baseFileForMerge();
    final GenericDatumWriter<GenericRecord> gWriter;
    final GenericDatumReader<GenericRecord> gReader;
    Schema readSchema;
    if (externalSchemaTransformation || baseFile.getBootstrapBaseFile().isPresent()) {
        readSchema = HoodieFileReaderFactory.getFileReader(table.getHadoopConf(), mergeHandle.getOldFilePath()).getSchema();
        gWriter = new GenericDatumWriter<>(readSchema);
        gReader = new GenericDatumReader<>(readSchema, mergeHandle.getWriterSchemaWithMetaFields());
    } else {
        gReader = null;
        gWriter = null;
        readSchema = mergeHandle.getWriterSchemaWithMetaFields();
    }
    BoundedInMemoryExecutor<GenericRecord, GenericRecord, Void> wrapper = null;
    HoodieFileReader<GenericRecord> reader = HoodieFileReaderFactory.<GenericRecord>getFileReader(cfgForHoodieFile, mergeHandle.getOldFilePath());
    try {
        final Iterator<GenericRecord> readerIterator;
        if (baseFile.getBootstrapBaseFile().isPresent()) {
            readerIterator = getMergingIterator(table, mergeHandle, baseFile, reader, readSchema, externalSchemaTransformation);
        } else {
            readerIterator = reader.getRecordIterator(readSchema);
        }
        ThreadLocal<BinaryEncoder> encoderCache = new ThreadLocal<>();
        ThreadLocal<BinaryDecoder> decoderCache = new ThreadLocal<>();
        wrapper = new BoundedInMemoryExecutor<>(table.getConfig().getWriteBufferLimitBytes(), new IteratorBasedQueueProducer<>(readerIterator), Option.of(new UpdateHandler(mergeHandle)), record -> {
            if (!externalSchemaTransformation) {
                return record;
            }
            return transformRecordBasedOnNewSchema(gReader, gWriter, encoderCache, decoderCache, (GenericRecord) record);
        });
        wrapper.execute();
    } catch (Exception e) {
        throw new HoodieException(e);
    } finally {
        if (reader != null) {
            reader.close();
        }
        mergeHandle.close();
        if (null != wrapper) {
            wrapper.shutdownNow();
        }
    }
}

Example 2 with HoodieFileReaderFactory

use of org.apache.hudi.io.storage.HoodieFileReaderFactory in project hudi by apache.

the class FlinkMergeHelper method runMerge.

@Override
public void runMerge(HoodieTable<T, List<HoodieRecord<T>>, List<HoodieKey>, List<WriteStatus>> table, HoodieMergeHandle<T, List<HoodieRecord<T>>, List<HoodieKey>, List<WriteStatus>> mergeHandle) throws IOException {
    final GenericDatumWriter<GenericRecord> gWriter;
    final GenericDatumReader<GenericRecord> gReader;
    Schema readSchema;
    final boolean externalSchemaTransformation = table.getConfig().shouldUseExternalSchemaTransformation();
    HoodieBaseFile baseFile = mergeHandle.baseFileForMerge();
    if (externalSchemaTransformation || baseFile.getBootstrapBaseFile().isPresent()) {
        readSchema = HoodieFileReaderFactory.getFileReader(table.getHadoopConf(), mergeHandle.getOldFilePath()).getSchema();
        gWriter = new GenericDatumWriter<>(readSchema);
        gReader = new GenericDatumReader<>(readSchema, mergeHandle.getWriterSchemaWithMetaFields());
    } else {
        gReader = null;
        gWriter = null;
        readSchema = mergeHandle.getWriterSchemaWithMetaFields();
    }
    BoundedInMemoryExecutor<GenericRecord, GenericRecord, Void> wrapper = null;
    Configuration cfgForHoodieFile = new Configuration(table.getHadoopConf());
    HoodieFileReader<GenericRecord> reader = HoodieFileReaderFactory.<GenericRecord>getFileReader(cfgForHoodieFile, mergeHandle.getOldFilePath());
    try {
        final Iterator<GenericRecord> readerIterator;
        if (baseFile.getBootstrapBaseFile().isPresent()) {
            readerIterator = getMergingIterator(table, mergeHandle, baseFile, reader, readSchema, externalSchemaTransformation);
        } else {
            readerIterator = reader.getRecordIterator(readSchema);
        }
        ThreadLocal<BinaryEncoder> encoderCache = new ThreadLocal<>();
        ThreadLocal<BinaryDecoder> decoderCache = new ThreadLocal<>();
        wrapper = new BoundedInMemoryExecutor<>(table.getConfig().getWriteBufferLimitBytes(), new IteratorBasedQueueProducer<>(readerIterator), Option.of(new UpdateHandler(mergeHandle)), record -> {
            if (!externalSchemaTransformation) {
                return record;
            }
            return transformRecordBasedOnNewSchema(gReader, gWriter, encoderCache, decoderCache, (GenericRecord) record);
        });
        wrapper.execute();
    } catch (Exception e) {
        throw new HoodieException(e);
    } finally {
        if (reader != null) {
            reader.close();
        }
        mergeHandle.close();
        if (null != wrapper) {
            wrapper.shutdownNow();
        }
    }
}