dweiss commented on a change in pull request #1126: LUCENE-4702: Terms
dictionary compression.
URL: https://github.com/apache/lucene-solr/pull/1126#discussion_r361624773
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File path:
lucene/core/src/java/org/apache/lucene/codecs/blocktree/SegmentTermsEnumFrame.java
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@@ -163,15 +179,48 @@ void loadBlock() throws IOException {
// instead of linear scan to find target term; eg
// we could have simple array of offsets
+ final long startSuffixFP = ste.in.getFilePointer();
// term suffixes:
- code = ste.in.readVInt();
- isLeafBlock = (code & 1) != 0;
- int numBytes = code >>> 1;
- if (suffixBytes.length < numBytes) {
- suffixBytes = new byte[ArrayUtil.oversize(numBytes, 1)];
+ if (version >= BlockTreeTermsReader.VERSION_COMPRESSED_SUFFIXES) {
+ final long codeL = ste.in.readVLong();
+ isLeafBlock = (codeL & 0x04) != 0;
+ final int numSuffixBytes = (int) (codeL >>> 3);
+ if (suffixBytes.length < numSuffixBytes) {
+ suffixBytes = new byte[ArrayUtil.oversize(numSuffixBytes, 1)];
+ }
+ compressionAlg = (int) codeL & 0x03;
Review comment:
An enum with final code field for clarity in this and other places, maybe?
Should be effectively the same at runtime.
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