mirror of https://github.com/apache/lucene.git
LUCENE-4304: remove PayloadProcessorProvider, map facet ords using a FilterAtomicReader
git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1372858 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Robert Muir
parent
0eda73aa3c
commit
81bff57343
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@ -35,6 +35,13 @@ API Changes
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the leaf atomic reader contexts for all readers in the tree.
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(Uwe Schindler, Robert Muir)
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* LUCENE-4304: removed PayloadProcessorProvider. If you want to change
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payloads (or other things) when merging indexes, its recommended
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to just use a FilterAtomicReader + IndexWriter.addIndexes. See the
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OrdinalMappingAtomicReader and TaxonomyMergeUtils in the facets
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module if you want an example of this.
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(Mike McCandless, Uwe Schindler, Shai Erera, Robert Muir)
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Bug Fixes
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* LUCENE-4297: BooleanScorer2 would multiply the coord() factor
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@ -123,18 +123,7 @@ public final class MappingMultiDocsAndPositionsEnum extends DocsAndPositionsEnum
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@Override
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public BytesRef getPayload() throws IOException {
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BytesRef payload = current.getPayload();
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if (mergeState.currentPayloadProcessor[upto] != null && payload != null) {
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// to not violate the D&P api, we must give the processor a private copy
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// TODO: reuse a BytesRef if there is a PPP
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payload = BytesRef.deepCopyOf(payload);
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mergeState.currentPayloadProcessor[upto].processPayload(payload);
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if (payload.length == 0) {
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// don't let PayloadProcessors corrumpt the index
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return null;
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}
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}
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return payload;
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return current.getPayload();
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}
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}
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@ -27,8 +27,6 @@ import org.apache.lucene.index.FieldInfo;
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import org.apache.lucene.index.FieldInfos;
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import org.apache.lucene.index.Fields;
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import org.apache.lucene.index.MergeState;
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import org.apache.lucene.index.PayloadProcessorProvider.PayloadProcessor;
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import org.apache.lucene.index.PayloadProcessorProvider.ReaderPayloadProcessor;
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import org.apache.lucene.index.Terms;
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import org.apache.lucene.index.TermsEnum;
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import org.apache.lucene.search.DocIdSetIterator;
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@ -170,12 +168,7 @@ public abstract class TermVectorsWriter implements Closeable {
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final AtomicReader reader = mergeState.readers.get(i);
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final int maxDoc = reader.maxDoc();
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final Bits liveDocs = reader.getLiveDocs();
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// set PayloadProcessor
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if (mergeState.payloadProcessorProvider != null) {
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mergeState.currentReaderPayloadProcessor = mergeState.readerPayloadProcessor[i];
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} else {
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mergeState.currentReaderPayloadProcessor = null;
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}
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for (int docID = 0; docID < maxDoc; docID++) {
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if (liveDocs != null && !liveDocs.get(docID)) {
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// skip deleted docs
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@ -215,9 +208,6 @@ public abstract class TermVectorsWriter implements Closeable {
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TermsEnum termsEnum = null;
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DocsAndPositionsEnum docsAndPositionsEnum = null;
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final ReaderPayloadProcessor readerPayloadProcessor = mergeState.currentReaderPayloadProcessor;
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PayloadProcessor payloadProcessor = null;
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for(String fieldName : vectors) {
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final FieldInfo fieldInfo = mergeState.fieldInfos.fieldInfo(fieldName);
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@ -251,10 +241,6 @@ public abstract class TermVectorsWriter implements Closeable {
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startTerm(termsEnum.term(), freq);
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if (hasPayloads && readerPayloadProcessor != null) {
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payloadProcessor = readerPayloadProcessor.getProcessor(fieldName, termsEnum.term());
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}
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if (hasPositions || hasOffsets) {
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docsAndPositionsEnum = termsEnum.docsAndPositions(null, docsAndPositionsEnum);
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assert docsAndPositionsEnum != null;
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@ -268,17 +254,7 @@ public abstract class TermVectorsWriter implements Closeable {
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final int startOffset = docsAndPositionsEnum.startOffset();
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final int endOffset = docsAndPositionsEnum.endOffset();
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BytesRef payload = docsAndPositionsEnum.getPayload();
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if (payloadProcessor != null && payload != null) {
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// to not violate the D&P api, we must give the processor a private copy
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payload = BytesRef.deepCopyOf(payload);
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payloadProcessor.processPayload(payload);
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if (payload.length == 0) {
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// don't let PayloadProcessors corrumpt the index
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payload = null;
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}
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}
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final BytesRef payload = docsAndPositionsEnum.getPayload();
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assert !hasPositions || pos >= 0;
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addPosition(pos, startOffset, endOffset, payload);
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@ -154,14 +154,7 @@ public abstract class TermsConsumer {
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postingsEnumIn = (MultiDocsAndPositionsEnum) termsEnum.docsAndPositions(null, postingsEnumIn, DocsAndPositionsEnum.FLAG_PAYLOADS);
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assert postingsEnumIn != null;
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postingsEnum.reset(postingsEnumIn);
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// set PayloadProcessor
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if (mergeState.payloadProcessorProvider != null) {
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for (int i = 0; i < mergeState.readers.size(); i++) {
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if (mergeState.readerPayloadProcessor[i] != null) {
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mergeState.currentPayloadProcessor[i] = mergeState.readerPayloadProcessor[i].getProcessor(mergeState.fieldInfo.name, term);
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}
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}
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}
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final PostingsConsumer postingsConsumer = startTerm(term);
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final TermStats stats = postingsConsumer.merge(mergeState, postingsEnum, visitedDocs);
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if (stats.docFreq > 0) {
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@ -188,14 +181,7 @@ public abstract class TermsConsumer {
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postingsEnumIn = (MultiDocsAndPositionsEnum) termsEnum.docsAndPositions(null, postingsEnumIn);
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assert postingsEnumIn != null;
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postingsEnum.reset(postingsEnumIn);
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// set PayloadProcessor
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if (mergeState.payloadProcessorProvider != null) {
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for (int i = 0; i < mergeState.readers.size(); i++) {
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if (mergeState.readerPayloadProcessor[i] != null) {
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mergeState.currentPayloadProcessor[i] = mergeState.readerPayloadProcessor[i].getProcessor(mergeState.fieldInfo.name, term);
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}
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}
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}
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final PostingsConsumer postingsConsumer = startTerm(term);
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final TermStats stats = postingsConsumer.merge(mergeState, postingsEnum, visitedDocs);
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if (stats.docFreq > 0) {
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@ -315,12 +315,7 @@ public final class Lucene40TermVectorsWriter extends TermVectorsWriter {
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int numDocs = 0;
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for (int i = 0; i < mergeState.readers.size(); i++) {
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final AtomicReader reader = mergeState.readers.get(i);
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// set PayloadProcessor
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if (mergeState.payloadProcessorProvider != null) {
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mergeState.currentReaderPayloadProcessor = mergeState.readerPayloadProcessor[i];
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} else {
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mergeState.currentReaderPayloadProcessor = null;
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}
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final SegmentReader matchingSegmentReader = mergeState.matchingSegmentReaders[idx++];
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Lucene40TermVectorsReader matchingVectorsReader = null;
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if (matchingSegmentReader != null) {
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@ -353,8 +348,8 @@ public final class Lucene40TermVectorsWriter extends TermVectorsWriter {
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final int maxDoc = reader.maxDoc();
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final Bits liveDocs = reader.getLiveDocs();
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int totalNumDocs = 0;
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if (matchingVectorsReader != null && mergeState.currentReaderPayloadProcessor == null) {
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// We can bulk-copy because the fieldInfos are "congruent" and there is no payload processor
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if (matchingVectorsReader != null) {
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// We can bulk-copy because the fieldInfos are "congruent"
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for (int docNum = 0; docNum < maxDoc;) {
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if (!liveDocs.get(docNum)) {
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// skip deleted docs
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@ -404,8 +399,8 @@ public final class Lucene40TermVectorsWriter extends TermVectorsWriter {
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int rawDocLengths2[])
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throws IOException {
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final int maxDoc = reader.maxDoc();
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if (matchingVectorsReader != null && mergeState.currentReaderPayloadProcessor == null) {
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// We can bulk-copy because the fieldInfos are "congruent" and there is no payload processor
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if (matchingVectorsReader != null) {
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// We can bulk-copy because the fieldInfos are "congruent"
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int docCount = 0;
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while (docCount < maxDoc) {
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int len = Math.min(MAX_RAW_MERGE_DOCS, maxDoc - docCount);
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@ -260,9 +260,6 @@ public class IndexWriter implements Closeable, TwoPhaseCommit {
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// to allow users to query an IndexWriter settings.
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private final LiveIndexWriterConfig config;
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// The PayloadProcessorProvider to use when segments are merged
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private PayloadProcessorProvider payloadProcessorProvider;
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DirectoryReader getReader() throws IOException {
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return getReader(true);
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}
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@ -2406,8 +2403,7 @@ public class IndexWriter implements Closeable, TwoPhaseCommit {
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false, codec, null, null);
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SegmentMerger merger = new SegmentMerger(info, infoStream, trackingDir, config.getTermIndexInterval(),
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MergeState.CheckAbort.NONE, payloadProcessorProvider,
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globalFieldNumberMap, context);
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MergeState.CheckAbort.NONE, globalFieldNumberMap, context);
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for (IndexReader reader : readers) { // add new indexes
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merger.add(reader);
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@ -3510,7 +3506,7 @@ public class IndexWriter implements Closeable, TwoPhaseCommit {
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final TrackingDirectoryWrapper dirWrapper = new TrackingDirectoryWrapper(directory);
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SegmentMerger merger = new SegmentMerger(merge.info.info, infoStream, dirWrapper, config.getTermIndexInterval(), checkAbort,
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payloadProcessorProvider, globalFieldNumberMap, context);
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globalFieldNumberMap, context);
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if (infoStream.isEnabled("IW")) {
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infoStream.message("IW", "merging " + segString(merge.segments));
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@ -4066,38 +4062,6 @@ public class IndexWriter implements Closeable, TwoPhaseCommit {
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deleter.deletePendingFiles();
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}
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/**
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* Sets the {@link PayloadProcessorProvider} to use when merging payloads.
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* Note that the given <code>pcp</code> will be invoked for every segment that
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* is merged, not only external ones that are given through
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* {@link #addIndexes}. If you want only the payloads of the external segments
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* to be processed, you can return <code>null</code> whenever a
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* {@link PayloadProcessorProvider.ReaderPayloadProcessor} is requested for the {@link Directory} of the
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* {@link IndexWriter}.
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* <p>
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* The default is <code>null</code> which means payloads are processed
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* normally (copied) during segment merges. You can also unset it by passing
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* <code>null</code>.
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* <p>
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* <b>NOTE:</b> the set {@link PayloadProcessorProvider} will be in effect
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* immediately, potentially for already running merges too. If you want to be
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* sure it is used for further operations only, such as {@link #addIndexes} or
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* {@link #forceMerge}, you can call {@link #waitForMerges()} before.
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*/
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public void setPayloadProcessorProvider(PayloadProcessorProvider pcp) {
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ensureOpen();
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payloadProcessorProvider = pcp;
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}
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/**
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* Returns the {@link PayloadProcessorProvider} that is used during segment
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* merges to process payloads.
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*/
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public PayloadProcessorProvider getPayloadProcessorProvider() {
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ensureOpen();
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return payloadProcessorProvider;
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}
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/**
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* NOTE: this method creates a compound file for all files returned by
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* info.files(). While, generally, this may include separate norms and
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@ -19,8 +19,6 @@ package org.apache.lucene.index;
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import java.util.List;
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import org.apache.lucene.index.PayloadProcessorProvider.PayloadProcessor;
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import org.apache.lucene.index.PayloadProcessorProvider.ReaderPayloadProcessor;
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import org.apache.lucene.store.Directory;
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import org.apache.lucene.util.Bits;
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import org.apache.lucene.util.InfoStream;
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@ -194,14 +192,6 @@ public class MergeState {
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// Updated per field;
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public FieldInfo fieldInfo;
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// Used to process payloads
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// TODO: this is a FactoryFactory here basically
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// and we could make a codec(wrapper) to do all of this privately so IW is uninvolved
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public PayloadProcessorProvider payloadProcessorProvider;
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public ReaderPayloadProcessor[] readerPayloadProcessor;
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public ReaderPayloadProcessor currentReaderPayloadProcessor;
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public PayloadProcessor[] currentPayloadProcessor;
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// TODO: get rid of this? it tells you which segments are 'aligned' (e.g. for bulk merging)
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// but is this really so expensive to compute again in different components, versus once in SM?
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public SegmentReader[] matchingSegmentReaders;
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@ -1,81 +0,0 @@
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package org.apache.lucene.index;
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.io.IOException;
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import org.apache.lucene.store.Directory;
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import org.apache.lucene.util.BytesRef;
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/**
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* Provides a {@link ReaderPayloadProcessor} to be used for a {@link Directory}.
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* This allows using different {@link ReaderPayloadProcessor}s for different
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* source {@link AtomicReader}, for e.g. to perform different processing of payloads of
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* different directories.
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* <p>
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* <b>NOTE:</b> to avoid processing payloads of certain directories, you can
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* return <code>null</code> in {@link #getReaderProcessor}.
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* <p>
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* <b>NOTE:</b> it is possible that the same {@link ReaderPayloadProcessor} will be
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* requested for the same {@link Directory} concurrently. Therefore, to avoid
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* concurrency issues you should return different instances for different
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* threads. Usually, if your {@link ReaderPayloadProcessor} does not maintain state
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* this is not a problem. The merge code ensures that the
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* {@link ReaderPayloadProcessor} instance you return will be accessed by one
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* thread to obtain the {@link PayloadProcessor}s for different terms.
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*
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* @lucene.experimental
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*/
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public abstract class PayloadProcessorProvider {
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/**
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* Returns a {@link PayloadProcessor} for a given {@link Term} which allows
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* processing the payloads of different terms differently. If you intent to
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* process all your payloads the same way, then you can ignore the given term.
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* <p>
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* <b>NOTE:</b> if you protect your {@link ReaderPayloadProcessor} from
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* concurrency issues, then you shouldn't worry about any such issues when
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* {@link PayloadProcessor}s are requested for different terms.
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*/
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public static abstract class ReaderPayloadProcessor {
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/** Returns a {@link PayloadProcessor} for the given term. */
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public abstract PayloadProcessor getProcessor(String field, BytesRef text) throws IOException;
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}
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/**
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* Processes the given payload.
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*
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* @lucene.experimental
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*/
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public static abstract class PayloadProcessor {
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/** Process the incoming payload and stores the result in the given {@link BytesRef}. */
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public abstract void processPayload(BytesRef payload) throws IOException;
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}
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/**
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* Returns a {@link ReaderPayloadProcessor} for the given {@link Directory},
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* through which {@link PayloadProcessor}s can be obtained for each
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* {@link Term}, or <code>null</code> if none should be used.
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*/
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public abstract ReaderPayloadProcessor getReaderProcessor(AtomicReader reader) throws IOException;
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}
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@ -56,13 +56,11 @@ final class SegmentMerger {
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// note, just like in codec apis Directory 'dir' is NOT the same as segmentInfo.dir!!
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SegmentMerger(SegmentInfo segmentInfo, InfoStream infoStream, Directory dir, int termIndexInterval,
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MergeState.CheckAbort checkAbort, PayloadProcessorProvider payloadProcessorProvider,
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FieldInfos.FieldNumbers fieldNumbers, IOContext context) {
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MergeState.CheckAbort checkAbort, FieldInfos.FieldNumbers fieldNumbers, IOContext context) {
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mergeState.segmentInfo = segmentInfo;
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mergeState.infoStream = infoStream;
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mergeState.readers = new ArrayList<AtomicReader>();
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mergeState.checkAbort = checkAbort;
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mergeState.payloadProcessorProvider = payloadProcessorProvider;
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directory = dir;
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this.termIndexInterval = termIndexInterval;
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this.codec = segmentInfo.getCodec();
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@ -274,8 +272,6 @@ final class SegmentMerger {
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// Remap docIDs
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mergeState.docMaps = new MergeState.DocMap[numReaders];
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mergeState.docBase = new int[numReaders];
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mergeState.readerPayloadProcessor = new PayloadProcessorProvider.ReaderPayloadProcessor[numReaders];
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mergeState.currentPayloadProcessor = new PayloadProcessorProvider.PayloadProcessor[numReaders];
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int docBase = 0;
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@ -289,10 +285,6 @@ final class SegmentMerger {
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mergeState.docMaps[i] = docMap;
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docBase += docMap.numDocs();
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if (mergeState.payloadProcessorProvider != null) {
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mergeState.readerPayloadProcessor[i] = mergeState.payloadProcessorProvider.getReaderProcessor(reader);
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}
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i++;
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}
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@ -204,7 +204,7 @@ public class TestDoc extends LuceneTestCase {
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final SegmentInfo si = new SegmentInfo(si1.info.dir, Constants.LUCENE_MAIN_VERSION, merged, -1, false, codec, null, null);
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SegmentMerger merger = new SegmentMerger(si, InfoStream.getDefault(), trackingDir, IndexWriterConfig.DEFAULT_TERM_INDEX_INTERVAL,
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MergeState.CheckAbort.NONE, null, new FieldInfos.FieldNumbers(), context);
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MergeState.CheckAbort.NONE, new FieldInfos.FieldNumbers(), context);
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merger.add(r1);
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merger.add(r2);
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@ -1,271 +0,0 @@
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package org.apache.lucene.index;
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/*
|
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* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership.
|
||||
* The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
* (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
*
|
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* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
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|
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import java.io.IOException;
|
||||
import java.util.HashMap;
|
||||
import java.util.Map;
|
||||
import java.util.Random;
|
||||
|
||||
import org.apache.lucene.analysis.MockAnalyzer;
|
||||
import org.apache.lucene.analysis.MockTokenizer;
|
||||
import org.apache.lucene.analysis.TokenStream;
|
||||
import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
|
||||
import org.apache.lucene.analysis.tokenattributes.PayloadAttribute;
|
||||
import org.apache.lucene.document.Document;
|
||||
import org.apache.lucene.document.Field;
|
||||
import org.apache.lucene.document.FieldType;
|
||||
import org.apache.lucene.document.TextField;
|
||||
import org.apache.lucene.index.PayloadProcessorProvider.ReaderPayloadProcessor;
|
||||
import org.apache.lucene.index.PayloadProcessorProvider.PayloadProcessor;
|
||||
import org.apache.lucene.search.DocIdSetIterator;
|
||||
import org.apache.lucene.store.Directory;
|
||||
import org.apache.lucene.util.BytesRef;
|
||||
import org.apache.lucene.util.LuceneTestCase;
|
||||
import org.junit.Test;
|
||||
|
||||
public class TestPayloadProcessorProvider extends LuceneTestCase {
|
||||
|
||||
private static final class PerDirPayloadProcessor extends PayloadProcessorProvider {
|
||||
|
||||
private final Map<Directory, ReaderPayloadProcessor> processors;
|
||||
|
||||
public PerDirPayloadProcessor(Map<Directory, ReaderPayloadProcessor> processors) {
|
||||
this.processors = processors;
|
||||
}
|
||||
|
||||
@Override
|
||||
public ReaderPayloadProcessor getReaderProcessor(AtomicReader reader) {
|
||||
if (reader instanceof SegmentReader) {
|
||||
return processors.get(((SegmentReader) reader).directory());
|
||||
} else {
|
||||
throw new UnsupportedOperationException("This shouldnot happen in this test: Reader is no SegmentReader");
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
private static final class PerTermPayloadProcessor extends ReaderPayloadProcessor {
|
||||
|
||||
@Override
|
||||
public PayloadProcessor getProcessor(String field, BytesRef text) {
|
||||
// don't process payloads of terms other than "p:p1"
|
||||
if (!field.equals("p") || !text.bytesEquals(new BytesRef("p1"))) {
|
||||
return null;
|
||||
}
|
||||
|
||||
// All other terms are processed the same way
|
||||
return new DeletePayloadProcessor();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/** deletes the incoming payload */
|
||||
private static final class DeletePayloadProcessor extends PayloadProcessor {
|
||||
|
||||
@Override
|
||||
public void processPayload(BytesRef payload) {
|
||||
payload.length = 0;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
private static final class PayloadTokenStream extends TokenStream {
|
||||
|
||||
private final PayloadAttribute payload = addAttribute(PayloadAttribute.class);
|
||||
private final CharTermAttribute term = addAttribute(CharTermAttribute.class);
|
||||
|
||||
private boolean called = false;
|
||||
private String t;
|
||||
|
||||
public PayloadTokenStream(String t) {
|
||||
this.t = t;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean incrementToken() {
|
||||
if (called) {
|
||||
return false;
|
||||
}
|
||||
|
||||
called = true;
|
||||
byte[] p = new byte[] { 1 };
|
||||
payload.setPayload(new BytesRef(p));
|
||||
term.append(t);
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void reset() throws IOException {
|
||||
super.reset();
|
||||
called = false;
|
||||
term.setEmpty();
|
||||
}
|
||||
}
|
||||
|
||||
private static final int NUM_DOCS = 10;
|
||||
|
||||
private void populateDirs(Random random, Directory[] dirs, boolean multipleCommits)
|
||||
throws IOException {
|
||||
for (int i = 0; i < dirs.length; i++) {
|
||||
dirs[i] = newDirectory();
|
||||
populateDocs(random, dirs[i], multipleCommits);
|
||||
verifyPayloadExists(dirs[i], "p", new BytesRef("p1"), NUM_DOCS);
|
||||
verifyPayloadExists(dirs[i], "p", new BytesRef("p2"), NUM_DOCS);
|
||||
}
|
||||
}
|
||||
|
||||
private void populateDocs(Random random, Directory dir, boolean multipleCommits)
|
||||
throws IOException {
|
||||
IndexWriter writer = new IndexWriter(
|
||||
dir,
|
||||
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random, MockTokenizer.WHITESPACE, false)).
|
||||
setMergePolicy(newLogMergePolicy(10))
|
||||
);
|
||||
TokenStream payloadTS1 = new PayloadTokenStream("p1");
|
||||
TokenStream payloadTS2 = new PayloadTokenStream("p2");
|
||||
FieldType customType = new FieldType(TextField.TYPE_NOT_STORED);
|
||||
customType.setOmitNorms(true);
|
||||
for (int i = 0; i < NUM_DOCS; i++) {
|
||||
Document doc = new Document();
|
||||
doc.add(newField("id", "doc" + i, customType));
|
||||
doc.add(newTextField("content", "doc content " + i, Field.Store.NO));
|
||||
if (random.nextBoolean()) {
|
||||
doc.add(new TextField("p", payloadTS1));
|
||||
doc.add(new TextField("p", payloadTS2));
|
||||
} else {
|
||||
FieldType type = new FieldType(TextField.TYPE_NOT_STORED);
|
||||
type.setStoreTermVectors(true);
|
||||
type.setStoreTermVectorPositions(true);
|
||||
type.setStoreTermVectorPayloads(true);
|
||||
type.setStoreTermVectorOffsets(random.nextBoolean());
|
||||
doc.add(new Field("p", payloadTS1, type));
|
||||
doc.add(new Field("p", payloadTS2, type));
|
||||
}
|
||||
writer.addDocument(doc);
|
||||
if (multipleCommits && (i % 4 == 0)) {
|
||||
writer.commit();
|
||||
}
|
||||
}
|
||||
writer.close();
|
||||
}
|
||||
|
||||
private void verifyPayloadExists(Directory dir, String field, BytesRef text, int numExpected)
|
||||
throws IOException {
|
||||
IndexReader reader = DirectoryReader.open(dir);
|
||||
try {
|
||||
int numPayloads = 0;
|
||||
DocsAndPositionsEnum tpe = MultiFields.getTermPositionsEnum(reader, null, field, text);
|
||||
while (tpe.nextDoc() != DocIdSetIterator.NO_MORE_DOCS) {
|
||||
tpe.nextPosition();
|
||||
BytesRef payload = tpe.getPayload();
|
||||
if (payload != null) {
|
||||
assertEquals(1, payload.length);
|
||||
assertEquals(1, payload.bytes[0]);
|
||||
++numPayloads;
|
||||
}
|
||||
}
|
||||
assertEquals(numExpected, numPayloads);
|
||||
} finally {
|
||||
reader.close();
|
||||
}
|
||||
}
|
||||
|
||||
private void doTest(Random random, boolean addToEmptyIndex,
|
||||
int numExpectedPayloads, boolean multipleCommits) throws IOException {
|
||||
Directory[] dirs = new Directory[2];
|
||||
populateDirs(random, dirs, multipleCommits);
|
||||
|
||||
Directory dir = newDirectory();
|
||||
if (!addToEmptyIndex) {
|
||||
populateDocs(random, dir, multipleCommits);
|
||||
verifyPayloadExists(dir, "p", new BytesRef("p1"), NUM_DOCS);
|
||||
verifyPayloadExists(dir, "p", new BytesRef("p2"), NUM_DOCS);
|
||||
}
|
||||
|
||||
// Add two source dirs. By not adding the dest dir, we ensure its payloads
|
||||
// won't get processed.
|
||||
Map<Directory, ReaderPayloadProcessor> processors = new HashMap<Directory, ReaderPayloadProcessor>();
|
||||
for (Directory d : dirs) {
|
||||
processors.put(d, new PerTermPayloadProcessor());
|
||||
}
|
||||
IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random, MockTokenizer.WHITESPACE, false)));
|
||||
writer.setPayloadProcessorProvider(new PerDirPayloadProcessor(processors));
|
||||
|
||||
IndexReader[] readers = new IndexReader[dirs.length];
|
||||
for (int i = 0; i < readers.length; i++) {
|
||||
readers[i] = DirectoryReader.open(dirs[i]);
|
||||
}
|
||||
try {
|
||||
writer.addIndexes(readers);
|
||||
} finally {
|
||||
for (IndexReader r : readers) {
|
||||
r.close();
|
||||
}
|
||||
}
|
||||
writer.close();
|
||||
verifyPayloadExists(dir, "p", new BytesRef("p1"), numExpectedPayloads);
|
||||
// the second term should always have all payloads
|
||||
numExpectedPayloads = NUM_DOCS * dirs.length
|
||||
+ (addToEmptyIndex ? 0 : NUM_DOCS);
|
||||
verifyPayloadExists(dir, "p", new BytesRef("p2"), numExpectedPayloads);
|
||||
for (Directory d : dirs)
|
||||
d.close();
|
||||
dir.close();
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testAddIndexes() throws Exception {
|
||||
// addIndexes - single commit in each
|
||||
doTest(random(), true, 0, false);
|
||||
|
||||
// addIndexes - multiple commits in each
|
||||
doTest(random(), true, 0, true);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testAddIndexesIntoExisting() throws Exception {
|
||||
// addIndexes - single commit in each
|
||||
doTest(random(), false, NUM_DOCS, false);
|
||||
|
||||
// addIndexes - multiple commits in each
|
||||
doTest(random(), false, NUM_DOCS, true);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testRegularMerges() throws Exception {
|
||||
Directory dir = newDirectory();
|
||||
populateDocs(random(), dir, true);
|
||||
verifyPayloadExists(dir, "p", new BytesRef("p1"), NUM_DOCS);
|
||||
verifyPayloadExists(dir, "p", new BytesRef("p2"), NUM_DOCS);
|
||||
|
||||
// Add two source dirs. By not adding the dest dir, we ensure its payloads
|
||||
// won't get processed.
|
||||
Map<Directory, ReaderPayloadProcessor> processors = new HashMap<Directory, ReaderPayloadProcessor>();
|
||||
processors.put(dir, new PerTermPayloadProcessor());
|
||||
IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false)));
|
||||
writer.setPayloadProcessorProvider(new PerDirPayloadProcessor(processors));
|
||||
writer.forceMerge(1);
|
||||
writer.close();
|
||||
|
||||
verifyPayloadExists(dir, "p", new BytesRef("p1"), 0);
|
||||
verifyPayloadExists(dir, "p", new BytesRef("p2"), NUM_DOCS);
|
||||
dir.close();
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -82,7 +82,7 @@ public class TestSegmentMerger extends LuceneTestCase {
|
|||
final SegmentInfo si = new SegmentInfo(mergedDir, Constants.LUCENE_MAIN_VERSION, mergedSegment, -1, false, codec, null, null);
|
||||
|
||||
SegmentMerger merger = new SegmentMerger(si, InfoStream.getDefault(), mergedDir, IndexWriterConfig.DEFAULT_TERM_INDEX_INTERVAL,
|
||||
MergeState.CheckAbort.NONE, null, new FieldInfos.FieldNumbers(), newIOContext(random()));
|
||||
MergeState.CheckAbort.NONE, new FieldInfos.FieldNumbers(), newIOContext(random()));
|
||||
merger.add(reader1);
|
||||
merger.add(reader2);
|
||||
MergeState mergeState = merger.merge();
|
||||
|
|
|
|||
|
|
@ -1,17 +1,20 @@
|
|||
package org.apache.lucene.facet.example.merge;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.util.List;
|
||||
|
||||
import org.apache.lucene.index.AtomicReader;
|
||||
import org.apache.lucene.index.AtomicReaderContext;
|
||||
import org.apache.lucene.index.DirectoryReader;
|
||||
import org.apache.lucene.index.IndexReader;
|
||||
import org.apache.lucene.index.IndexWriter;
|
||||
import org.apache.lucene.index.IndexWriterConfig;
|
||||
import org.apache.lucene.index.PayloadProcessorProvider;
|
||||
import org.apache.lucene.index.MultiReader;
|
||||
import org.apache.lucene.store.Directory;
|
||||
|
||||
import org.apache.lucene.facet.example.ExampleUtils;
|
||||
import org.apache.lucene.facet.index.FacetsPayloadProcessorProvider;
|
||||
import org.apache.lucene.facet.index.OrdinalMappingAtomicReader;
|
||||
import org.apache.lucene.facet.index.params.DefaultFacetIndexingParams;
|
||||
import org.apache.lucene.facet.index.params.FacetIndexingParams;
|
||||
import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter;
|
||||
import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter.DiskOrdinalMap;
|
||||
import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter.MemoryOrdinalMap;
|
||||
|
|
@ -84,13 +87,17 @@ public class TaxonomyMergeUtils {
|
|||
// merge the taxonomies
|
||||
destTaxWriter.addTaxonomy(srcTaxDir, map);
|
||||
|
||||
PayloadProcessorProvider payloadProcessor = new FacetsPayloadProcessorProvider(
|
||||
srcIndexDir, map.getMap(), new DefaultFacetIndexingParams());
|
||||
destIndexWriter.setPayloadProcessorProvider(payloadProcessor);
|
||||
int ordinalMap[] = map.getMap();
|
||||
FacetIndexingParams params = new DefaultFacetIndexingParams();
|
||||
|
||||
IndexReader reader = DirectoryReader.open(srcIndexDir);
|
||||
DirectoryReader reader = DirectoryReader.open(srcIndexDir, -1);
|
||||
List<AtomicReaderContext> leaves = reader.leaves();
|
||||
AtomicReader wrappedLeaves[] = new AtomicReader[leaves.size()];
|
||||
for (int i = 0; i < leaves.size(); i++) {
|
||||
wrappedLeaves[i] = new OrdinalMappingAtomicReader(leaves.get(i).reader(), ordinalMap, params);
|
||||
}
|
||||
try {
|
||||
destIndexWriter.addIndexes(reader);
|
||||
destIndexWriter.addIndexes(new MultiReader(wrappedLeaves));
|
||||
|
||||
// commit changes to taxonomy and index respectively.
|
||||
destTaxWriter.commit();
|
||||
|
|
|
|||
|
|
@ -1,197 +0,0 @@
|
|||
package org.apache.lucene.facet.index;
|
||||
|
||||
import java.io.ByteArrayInputStream;
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.util.HashMap;
|
||||
import java.util.Map;
|
||||
|
||||
import org.apache.lucene.index.AtomicReader;
|
||||
import org.apache.lucene.index.PayloadProcessorProvider;
|
||||
import org.apache.lucene.index.PayloadProcessorProvider.ReaderPayloadProcessor; // javadocs
|
||||
import org.apache.lucene.index.SegmentReader;
|
||||
import org.apache.lucene.index.Term;
|
||||
import org.apache.lucene.store.Directory;
|
||||
|
||||
import org.apache.lucene.facet.index.params.CategoryListParams;
|
||||
import org.apache.lucene.facet.index.params.FacetIndexingParams;
|
||||
import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter.OrdinalMap;
|
||||
import org.apache.lucene.util.BytesRef;
|
||||
import org.apache.lucene.util.encoding.IntDecoder;
|
||||
import org.apache.lucene.util.encoding.IntEncoder;
|
||||
|
||||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership.
|
||||
* The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
* (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
/**
|
||||
* A {@link PayloadProcessorProvider} for updating facets ordinal references,
|
||||
* based on an ordinal map. You should use this code in conjunction with merging
|
||||
* taxonomies - after you merge taxonomies, you receive an {@link OrdinalMap}
|
||||
* which maps the 'old' payloads to the 'new' ones. You can use that map to
|
||||
* re-map the payloads which contain the facets information (ordinals) either
|
||||
* before or while merging the indexes.
|
||||
* <p>
|
||||
* For re-mapping the ordinals before you merge the indexes, do the following:
|
||||
*
|
||||
* <pre>
|
||||
* // merge the old taxonomy with the new one.
|
||||
* OrdinalMap map = LuceneTaxonomyWriter.addTaxonomies();
|
||||
* int[] ordmap = map.getMap();
|
||||
*
|
||||
* // re-map the ordinals on the old directory.
|
||||
* Directory oldDir;
|
||||
* FacetsPayloadProcessorProvider fppp = new FacetsPayloadProcessorProvider(
|
||||
* oldDir, ordmap);
|
||||
* IndexWriterConfig conf = new IndexWriterConfig(VER, ANALYZER);
|
||||
* conf.setMergePolicy(new ForceOptimizeMergePolicy());
|
||||
* IndexWriter writer = new IndexWriter(oldDir, conf);
|
||||
* writer.setPayloadProcessorProvider(fppp);
|
||||
* writer.forceMerge(1);
|
||||
* writer.close();
|
||||
*
|
||||
* // merge that directory with the new index.
|
||||
* IndexWriter newWriter; // opened on the 'new' Directory
|
||||
* newWriter.addIndexes(oldDir);
|
||||
* newWriter.commit();
|
||||
* </pre>
|
||||
*
|
||||
* For re-mapping the ordinals during index merge, do the following:
|
||||
*
|
||||
* <pre>
|
||||
* // merge the old taxonomy with the new one.
|
||||
* OrdinalMap map = LuceneTaxonomyWriter.addTaxonomies();
|
||||
* int[] ordmap = map.getMap();
|
||||
*
|
||||
* // Add the index and re-map ordinals on the go
|
||||
* IndexReader r = IndexReader.open(oldDir);
|
||||
* IndexWriterConfig conf = new IndexWriterConfig(VER, ANALYZER);
|
||||
* IndexWriter writer = new IndexWriter(newDir, conf);
|
||||
* writer.setPayloadProcessorProvider(fppp);
|
||||
* writer.addIndexes(r);
|
||||
* writer.commit();
|
||||
* </pre>
|
||||
* <p>
|
||||
* <b>NOTE:</b> while the second example looks simpler, IndexWriter may trigger
|
||||
* a long merge due to addIndexes. The first example avoids this perhaps
|
||||
* unneeded merge, as well as can be done separately (e.g. on another node)
|
||||
* before the index is merged.
|
||||
*
|
||||
* @lucene.experimental
|
||||
*/
|
||||
public class FacetsPayloadProcessorProvider extends PayloadProcessorProvider {
|
||||
|
||||
private final Directory workDir;
|
||||
|
||||
private final ReaderPayloadProcessor dirProcessor;
|
||||
|
||||
/**
|
||||
* Construct FacetsPayloadProcessorProvider with FacetIndexingParams
|
||||
*
|
||||
* @param dir the {@link Directory} containing the segments to update
|
||||
* @param ordinalMap an array mapping previous facets ordinals to new ones
|
||||
* @param indexingParams the facets indexing parameters
|
||||
*/
|
||||
public FacetsPayloadProcessorProvider(Directory dir, int[] ordinalMap,
|
||||
FacetIndexingParams indexingParams) {
|
||||
workDir = dir;
|
||||
dirProcessor = new FacetsDirPayloadProcessor(indexingParams, ordinalMap);
|
||||
}
|
||||
|
||||
@Override
|
||||
public ReaderPayloadProcessor getReaderProcessor(AtomicReader reader) throws IOException {
|
||||
if (reader instanceof SegmentReader) {
|
||||
if (workDir == ((SegmentReader) reader).directory()) {
|
||||
return dirProcessor;
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* {@link ReaderPayloadProcessor} that processes
|
||||
* facet ordinals according to the passed in {@link FacetIndexingParams}.
|
||||
*/
|
||||
public static class FacetsDirPayloadProcessor extends ReaderPayloadProcessor {
|
||||
|
||||
private final Map<Term, CategoryListParams> termMap = new HashMap<Term, CategoryListParams>(1);
|
||||
|
||||
private final int[] ordinalMap;
|
||||
|
||||
/**
|
||||
* Construct FacetsDirPayloadProcessor with custom FacetIndexingParams
|
||||
* @param ordinalMap an array mapping previous facets ordinals to new ones
|
||||
* @param indexingParams the facets indexing parameters
|
||||
*/
|
||||
protected FacetsDirPayloadProcessor(FacetIndexingParams indexingParams, int[] ordinalMap) {
|
||||
this.ordinalMap = ordinalMap;
|
||||
for (CategoryListParams params: indexingParams.getAllCategoryListParams()) {
|
||||
termMap.put(params.getTerm(), params);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public PayloadProcessor getProcessor(String field, BytesRef bytes) throws IOException {
|
||||
// TODO (Facet): don't create terms
|
||||
CategoryListParams params = termMap.get(new Term(field, bytes));
|
||||
if (params == null) {
|
||||
return null;
|
||||
}
|
||||
return new FacetsPayloadProcessor(params, ordinalMap);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/** A PayloadProcessor for updating facets ordinal references, based on an ordinal map */
|
||||
public static class FacetsPayloadProcessor extends PayloadProcessor {
|
||||
|
||||
private final IntEncoder encoder;
|
||||
private final IntDecoder decoder;
|
||||
private final int[] ordinalMap;
|
||||
private final ByteArrayOutputStream os = new ByteArrayOutputStream();
|
||||
|
||||
/**
|
||||
* @param params defines the encoding of facet ordinals as payload
|
||||
* @param ordinalMap an array mapping previous facets ordinals to new ones
|
||||
*/
|
||||
protected FacetsPayloadProcessor(CategoryListParams params, int[] ordinalMap) {
|
||||
encoder = params.createEncoder();
|
||||
decoder = encoder.createMatchingDecoder();
|
||||
this.ordinalMap = ordinalMap;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void processPayload(BytesRef payload) throws IOException {
|
||||
InputStream is = new ByteArrayInputStream(payload.bytes, payload.offset, payload.length);
|
||||
decoder.reInit(is);
|
||||
os.reset();
|
||||
encoder.reInit(os);
|
||||
long ordinal;
|
||||
while ((ordinal = decoder.decode()) != IntDecoder.EOS) {
|
||||
int newOrdinal = ordinalMap[(int)ordinal];
|
||||
encoder.encode(newOrdinal);
|
||||
}
|
||||
encoder.close();
|
||||
// TODO (Facet): avoid copy?
|
||||
byte out[] = os.toByteArray();
|
||||
payload.bytes = out;
|
||||
payload.offset = 0;
|
||||
payload.length = out.length;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,224 @@
|
|||
package org.apache.lucene.facet.index;
|
||||
|
||||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership.
|
||||
* The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
* (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
import java.io.ByteArrayInputStream;
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.util.HashMap;
|
||||
import java.util.Map;
|
||||
|
||||
import org.apache.lucene.facet.index.params.CategoryListParams;
|
||||
import org.apache.lucene.facet.index.params.DefaultFacetIndexingParams;
|
||||
import org.apache.lucene.facet.index.params.FacetIndexingParams;
|
||||
import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter.OrdinalMap;
|
||||
import org.apache.lucene.index.AtomicReader;
|
||||
import org.apache.lucene.index.DocsAndPositionsEnum;
|
||||
import org.apache.lucene.index.Fields;
|
||||
import org.apache.lucene.index.FilterAtomicReader;
|
||||
import org.apache.lucene.index.Term;
|
||||
import org.apache.lucene.index.Terms;
|
||||
import org.apache.lucene.index.TermsEnum;
|
||||
import org.apache.lucene.util.Bits;
|
||||
import org.apache.lucene.util.BytesRef;
|
||||
import org.apache.lucene.util.encoding.IntDecoder;
|
||||
import org.apache.lucene.util.encoding.IntEncoder;
|
||||
|
||||
/**
|
||||
* A {@link FilterAtomicReader} for updating facets ordinal references,
|
||||
* based on an ordinal map. You should use this code in conjunction with merging
|
||||
* taxonomies - after you merge taxonomies, you receive an {@link OrdinalMap}
|
||||
* which maps the 'old' payloads to the 'new' ones. You can use that map to
|
||||
* re-map the payloads which contain the facets information (ordinals) either
|
||||
* before or while merging the indexes.
|
||||
* <p>
|
||||
* For re-mapping the ordinals during index merge, do the following:
|
||||
*
|
||||
* <pre class="prettyprint">
|
||||
* // merge the old taxonomy with the new one.
|
||||
* OrdinalMap map = DirectoryTaxonomyWriter.addTaxonomies();
|
||||
* int[] ordmap = map.getMap();
|
||||
*
|
||||
* // Add the index and re-map ordinals on the go
|
||||
* DirectoryReader reader = DirectoryReader.open(oldDir);
|
||||
* IndexWriterConfig conf = new IndexWriterConfig(VER, ANALYZER);
|
||||
* IndexWriter writer = new IndexWriter(newDir, conf);
|
||||
* List<AtomicReaderContext> leaves = reader.leaves();
|
||||
* AtomicReader wrappedLeaves[] = new AtomicReader[leaves.size()];
|
||||
* for (int i = 0; i < leaves.size(); i++) {
|
||||
* wrappedLeaves[i] = new OrdinalMappingAtomicReader(leaves.get(i).reader(), ordmap);
|
||||
* }
|
||||
* writer.addIndexes(new MultiReader(wrappedLeaves));
|
||||
* writer.commit();
|
||||
* </pre>
|
||||
*
|
||||
* @lucene.experimental
|
||||
*/
|
||||
public class OrdinalMappingAtomicReader extends FilterAtomicReader {
|
||||
private final int[] ordinalMap;
|
||||
// a little obtuse: but we dont need to create Term objects this way
|
||||
private final Map<String,Map<BytesRef,CategoryListParams>> termMap =
|
||||
new HashMap<String,Map<BytesRef,CategoryListParams>>(1);
|
||||
|
||||
/**
|
||||
* Wraps an AtomicReader, mapping ordinals according to the ordinalMap.
|
||||
* Calls {@link #OrdinalMappingAtomicReader(AtomicReader, int[], FacetIndexingParams)
|
||||
* OrdinalMappingAtomicReader(in, ordinalMap, new DefaultFacetIndexingParams())}
|
||||
*/
|
||||
public OrdinalMappingAtomicReader(AtomicReader in, int[] ordinalMap) {
|
||||
this(in, ordinalMap, new DefaultFacetIndexingParams());
|
||||
}
|
||||
|
||||
/**
|
||||
* Wraps an AtomicReader, mapping ordinals according to the ordinalMap,
|
||||
* using the provided indexingParams.
|
||||
*/
|
||||
public OrdinalMappingAtomicReader(AtomicReader in, int[] ordinalMap, FacetIndexingParams indexingParams) {
|
||||
super(in);
|
||||
this.ordinalMap = ordinalMap;
|
||||
for (CategoryListParams params: indexingParams.getAllCategoryListParams()) {
|
||||
Term term = params.getTerm();
|
||||
Map<BytesRef,CategoryListParams> fieldMap = termMap.get(term.field());
|
||||
if (fieldMap == null) {
|
||||
fieldMap = new HashMap<BytesRef,CategoryListParams>(1);
|
||||
termMap.put(term.field(), fieldMap);
|
||||
}
|
||||
fieldMap.put(term.bytes(), params);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public Fields getTermVectors(int docID) throws IOException {
|
||||
Fields fields = super.getTermVectors(docID);
|
||||
if (fields == null) {
|
||||
return null;
|
||||
} else {
|
||||
return new OrdinalMappingFields(fields);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public Fields fields() throws IOException {
|
||||
Fields fields = super.fields();
|
||||
if (fields == null) {
|
||||
return null;
|
||||
} else {
|
||||
return new OrdinalMappingFields(fields);
|
||||
}
|
||||
}
|
||||
|
||||
private class OrdinalMappingFields extends FilterFields {
|
||||
|
||||
public OrdinalMappingFields(Fields in) {
|
||||
super(in);
|
||||
}
|
||||
|
||||
@Override
|
||||
public Terms terms(String field) throws IOException {
|
||||
Terms terms = super.terms(field);
|
||||
if (terms == null) {
|
||||
return terms;
|
||||
}
|
||||
Map<BytesRef,CategoryListParams> termsMap = termMap.get(field);
|
||||
if (termsMap == null) {
|
||||
return terms;
|
||||
} else {
|
||||
return new OrdinalMappingTerms(terms, termsMap);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private class OrdinalMappingTerms extends FilterTerms {
|
||||
private final Map<BytesRef,CategoryListParams> termsMap;
|
||||
|
||||
public OrdinalMappingTerms(Terms in, Map<BytesRef,CategoryListParams> termsMap) {
|
||||
super(in);
|
||||
this.termsMap = termsMap;
|
||||
}
|
||||
|
||||
@Override
|
||||
public TermsEnum iterator(TermsEnum reuse) throws IOException {
|
||||
// TODO: should we reuse the inner termsenum?
|
||||
return new OrdinalMappingTermsEnum(super.iterator(reuse), termsMap);
|
||||
}
|
||||
}
|
||||
|
||||
private class OrdinalMappingTermsEnum extends FilterTermsEnum {
|
||||
private final Map<BytesRef,CategoryListParams> termsMap;
|
||||
|
||||
public OrdinalMappingTermsEnum(TermsEnum in, Map<BytesRef,CategoryListParams> termsMap) {
|
||||
super(in);
|
||||
this.termsMap = termsMap;
|
||||
}
|
||||
|
||||
@Override
|
||||
public DocsAndPositionsEnum docsAndPositions(Bits liveDocs, DocsAndPositionsEnum reuse, int flags) throws IOException {
|
||||
// TODO: we could reuse our D&P enum if we need
|
||||
DocsAndPositionsEnum inner = super.docsAndPositions(liveDocs, reuse, flags);
|
||||
if (inner == null) {
|
||||
return inner;
|
||||
}
|
||||
|
||||
CategoryListParams params = termsMap.get(term());
|
||||
if (params == null) {
|
||||
return inner;
|
||||
}
|
||||
|
||||
return new OrdinalMappingDocsAndPositionsEnum(inner, params);
|
||||
}
|
||||
}
|
||||
|
||||
private class OrdinalMappingDocsAndPositionsEnum extends FilterDocsAndPositionsEnum {
|
||||
private final IntEncoder encoder;
|
||||
private final IntDecoder decoder;
|
||||
private final ByteArrayOutputStream os = new ByteArrayOutputStream();
|
||||
private final BytesRef payloadOut = new BytesRef();
|
||||
|
||||
public OrdinalMappingDocsAndPositionsEnum(DocsAndPositionsEnum in, CategoryListParams params) {
|
||||
super(in);
|
||||
encoder = params.createEncoder();
|
||||
decoder = encoder.createMatchingDecoder();
|
||||
}
|
||||
|
||||
@Override
|
||||
public BytesRef getPayload() throws IOException {
|
||||
BytesRef payload = super.getPayload();
|
||||
if (payload == null) {
|
||||
return payload;
|
||||
} else {
|
||||
InputStream is = new ByteArrayInputStream(payload.bytes, payload.offset, payload.length);
|
||||
decoder.reInit(is);
|
||||
os.reset();
|
||||
encoder.reInit(os);
|
||||
long ordinal;
|
||||
while ((ordinal = decoder.decode()) != IntDecoder.EOS) {
|
||||
int newOrdinal = ordinalMap[(int)ordinal];
|
||||
encoder.encode(newOrdinal);
|
||||
}
|
||||
encoder.close();
|
||||
// TODO (Facet): avoid copy?
|
||||
byte out[] = os.toByteArray();
|
||||
payloadOut.bytes = out;
|
||||
payloadOut.offset = 0;
|
||||
payloadOut.length = out.length;
|
||||
return payloadOut;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue