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LUCENE-3892: move readBlock/skipBlock up as static methods 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/pforcodec_3892@1363886 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael McCandless 2012-07-20 18:18:16 +00:00
parent 1e49670a55
commit 6ccd856bae
1 changed files with 24 additions and 41 deletions
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65
lucene/core/src/java/org/apache/lucene/codecs/block/BlockPostingsReader.java
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@ -118,6 +118,17 @@ public final class BlockPostingsReader extends PostingsReaderBase {
}
}
static void readBlock(IndexInput in, byte[] encoded, IntBuffer encodedBuffer, int[] buffer) throws IOException {
int header = in.readVInt();
in.readBytes(encoded, 0, ForUtil.getEncodedSize(header));
ForUtil.decompress(encodedBuffer, buffer, header);
}
static void skipBlock(IndexInput in) throws IOException {
int header = in.readVInt();
in.seek(in.getFilePointer() + ForUtil.getEncodedSize(header));
}
// Must keep final because we do non-standard clone
private final static class IntBlockTermState extends BlockTermState {
long docStartFP;
@ -370,12 +381,6 @@ public final class BlockPostingsReader extends PostingsReaderBase {
return doc;
}
private void readBlock(IndexInput in, int[] buffer) throws IOException {
int header = in.readVInt();
in.readBytes(encoded, 0, ForUtil.getEncodedSize(header));
ForUtil.decompress(encodedBuffer, buffer, header);
}
private void refillDocs() throws IOException {
final int left = docFreq - docUpto;
assert left > 0;
@ -384,13 +389,13 @@ public final class BlockPostingsReader extends PostingsReaderBase {
if (DEBUG) {
System.out.println(" fill doc block from fp=" + docIn.getFilePointer());
}
readBlock(docIn, docDeltaBuffer);
readBlock(docIn, encoded, encodedBuffer, docDeltaBuffer);
if (indexHasFreq) {
if (DEBUG) {
System.out.println(" fill freq block from fp=" + docIn.getFilePointer());
}
readBlock(docIn, freqBuffer);
readBlock(docIn, encoded, encodedBuffer, freqBuffer);
}
} else {
// Read vInts:
@ -646,17 +651,6 @@ public final class BlockPostingsReader extends PostingsReaderBase {
return doc;
}
private void readBlock(IndexInput in, int[] buffer) throws IOException {
int header = in.readVInt();
in.readBytes(encoded, 0, ForUtil.getEncodedSize(header));
ForUtil.decompress(encodedBuffer, buffer, header);
}
private void skipBlock(IndexInput in) throws IOException {
int header = in.readVInt();
in.seek(in.getFilePointer() + ForUtil.getEncodedSize(header));
}
private void refillDocs() throws IOException {
final int left = docFreq - docUpto;
assert left > 0;
@ -666,13 +660,13 @@ public final class BlockPostingsReader extends PostingsReaderBase {
System.out.println(" fill doc block from fp=" + docIn.getFilePointer());
}
readBlock(docIn, docDeltaBuffer);
readBlock(docIn, encoded, encodedBuffer, docDeltaBuffer);
if (DEBUG) {
System.out.println(" fill freq block from fp=" + docIn.getFilePointer());
}
readBlock(docIn, freqBuffer);
readBlock(docIn, encoded, encodedBuffer, freqBuffer);
} else {
// Read vInts:
if (DEBUG) {
@ -724,7 +718,7 @@ public final class BlockPostingsReader extends PostingsReaderBase {
if (DEBUG) {
System.out.println(" bulk pos block @ fp=" + posIn.getFilePointer());
}
readBlock(posIn, posDeltaBuffer);
readBlock(posIn, encoded, encodedBuffer, posDeltaBuffer);
}
}
@ -1097,17 +1091,6 @@ public final class BlockPostingsReader extends PostingsReaderBase {
return doc;
}
private void readBlock(IndexInput in, int[] buffer) throws IOException {
int header = in.readVInt();
in.readBytes(encoded, 0, ForUtil.getEncodedSize(header));
ForUtil.decompress(encodedBuffer, buffer, header);
}
private void skipBlock(IndexInput in) throws IOException {
int header = in.readVInt();
in.seek(in.getFilePointer() + ForUtil.getEncodedSize(header));
}
private void refillDocs() throws IOException {
final int left = docFreq - docUpto;
assert left > 0;
@ -1117,13 +1100,13 @@ public final class BlockPostingsReader extends PostingsReaderBase {
System.out.println(" fill doc block from fp=" + docIn.getFilePointer());
}
readBlock(docIn, docDeltaBuffer);
readBlock(docIn, encoded, encodedBuffer, docDeltaBuffer);
if (DEBUG) {
System.out.println(" fill freq block from fp=" + docIn.getFilePointer());
}
readBlock(docIn, freqBuffer);
readBlock(docIn, encoded, encodedBuffer, freqBuffer);
} else {
// Read vInts:
if (DEBUG) {
@ -1192,13 +1175,13 @@ public final class BlockPostingsReader extends PostingsReaderBase {
if (DEBUG) {
System.out.println(" bulk pos block @ fp=" + posIn.getFilePointer());
}
readBlock(posIn, posDeltaBuffer);
readBlock(posIn, encoded, encodedBuffer, posDeltaBuffer);
if (indexHasPayloads) {
if (DEBUG) {
System.out.println(" bulk payload block @ pay.fp=" + payIn.getFilePointer());
}
readBlock(payIn, payloadLengthBuffer);
readBlock(payIn, encoded, encodedBuffer, payloadLengthBuffer);
int numBytes = payIn.readVInt();
if (DEBUG) {
System.out.println(" " + numBytes + " payload bytes @ pay.fp=" + payIn.getFilePointer());
@ -1214,8 +1197,8 @@ public final class BlockPostingsReader extends PostingsReaderBase {
if (DEBUG) {
System.out.println(" bulk offset block @ pay.fp=" + payIn.getFilePointer());
}
readBlock(payIn, offsetStartDeltaBuffer);
readBlock(payIn, offsetLengthBuffer);
readBlock(payIn, encoded, encodedBuffer, offsetStartDeltaBuffer);
readBlock(payIn, encoded, encodedBuffer, offsetLengthBuffer);
}
}
}
@ -1400,8 +1383,8 @@ public final class BlockPostingsReader extends PostingsReaderBase {
if (indexHasOffsets) {
// Must load offset blocks merely to sum
// up into lastEndOffset:
readBlock(payIn, offsetStartDeltaBuffer);
readBlock(payIn, offsetLengthBuffer);
readBlock(payIn, encoded, encodedBuffer, offsetStartDeltaBuffer);
readBlock(payIn, encoded, encodedBuffer, offsetLengthBuffer);
for(int i=0;i<blockSize;i++) {
lastEndOffset += offsetStartDeltaBuffer[i] + offsetLengthBuffer[i];
}