MetaInfoObjExtractor(String codecStr, int bufferSize, int metadataSize, ByteBuffer footerBuffer)
throws IOException {
this.compressionKind = CompressionKind.valueOf(codecStr);
this.bufferSize = bufferSize;
this.codec = WriterImpl.createCodec(compressionKind);
this.metadataSize = metadataSize;
int position = footerBuffer.position();
int footerBufferSize = footerBuffer.limit() - footerBuffer.position() - metadataSize;
footerBuffer.limit(position + metadataSize);
InputStream instream =
InStream.create(
"metadata",
Lists.<DiskRange>newArrayList(new BufferChunk(footerBuffer, 0)),
metadataSize,
codec,
bufferSize);
this.metadata = OrcProto.Metadata.parseFrom(instream);
footerBuffer.position(position + metadataSize);
footerBuffer.limit(position + metadataSize + footerBufferSize);
instream =
InStream.create(
"footer",
Lists.<DiskRange>newArrayList(new BufferChunk(footerBuffer, 0)),
footerBufferSize,
codec,
bufferSize);
this.footer = OrcProto.Footer.parseFrom(instream);
footerBuffer.position(position);
this.inspector = OrcStruct.createObjectInspector(0, footer.getTypesList());
}
List<OrcProto.StripeStatistics> getOrcProtoStripeStatistics() {
return metadata.getStripeStatsList();
}
