--- /dev/null
+package org.apache.lucene.search.highlight;
+
+/**
+ * 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.IOException;
+
+import org.apache.lucene.analysis.MockAnalyzer;
+import org.apache.lucene.analysis.MockTokenizer;
+import org.apache.lucene.analysis.Token;
+import org.apache.lucene.analysis.TokenStream;
+import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
+import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute;
+import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+import org.apache.lucene.document.Field.Index;
+import org.apache.lucene.document.Field.Store;
+import org.apache.lucene.document.Field.TermVector;
+import org.apache.lucene.index.CorruptIndexException;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.IndexWriter;
+import org.apache.lucene.index.Term;
+import org.apache.lucene.index.TermPositionVector;
+import org.apache.lucene.search.Collector;
+import org.apache.lucene.search.IndexSearcher;
+import org.apache.lucene.search.PhraseQuery;
+import org.apache.lucene.search.Query;
+import org.apache.lucene.search.TopDocs;
+
+import org.apache.lucene.search.spans.SpanNearQuery;
+import org.apache.lucene.search.spans.SpanQuery;
+import org.apache.lucene.search.spans.SpanTermQuery;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.store.LockObtainFailedException;
+import org.apache.lucene.util.LuceneTestCase;
+import org.apache.lucene.util.FixedBitSet;
+
+public class HighlighterPhraseTest extends LuceneTestCase {
+ private static final String FIELD = "text";
+ public void testConcurrentPhrase() throws CorruptIndexException,
+ LockObtainFailedException, IOException, InvalidTokenOffsetsException {
+ final String TEXT = "the fox jumped";
+ final Directory directory = newDirectory();
+ final IndexWriter indexWriter = new IndexWriter(directory,
+ newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random, MockTokenizer.WHITESPACE, false)));
+ try {
+ final Document document = new Document();
+ document.add(new Field(FIELD, new TokenStreamConcurrent(),
+ TermVector.WITH_POSITIONS_OFFSETS));
+ indexWriter.addDocument(document);
+ } finally {
+ indexWriter.close();
+ }
+ final IndexReader indexReader = IndexReader.open(directory, true);
+ try {
+ assertEquals(1, indexReader.numDocs());
+ final IndexSearcher indexSearcher = newSearcher(indexReader);
+ try {
+ final PhraseQuery phraseQuery = new PhraseQuery();
+ phraseQuery.add(new Term(FIELD, "fox"));
+ phraseQuery.add(new Term(FIELD, "jumped"));
+ phraseQuery.setSlop(0);
+ TopDocs hits = indexSearcher.search(phraseQuery, 1);
+ assertEquals(1, hits.totalHits);
+ final Highlighter highlighter = new Highlighter(
+ new SimpleHTMLFormatter(), new SimpleHTMLEncoder(),
+ new QueryScorer(phraseQuery));
+
+ final TokenStream tokenStream = TokenSources
+ .getTokenStream((TermPositionVector) indexReader.getTermFreqVector(
+ 0, FIELD), false);
+ assertEquals(highlighter.getBestFragment(new TokenStreamConcurrent(),
+ TEXT), highlighter.getBestFragment(tokenStream, TEXT));
+
+ } finally {
+ indexSearcher.close();
+ }
+ } finally {
+ indexReader.close();
+ directory.close();
+ }
+ }
+
+ public void testConcurrentSpan() throws CorruptIndexException,
+ LockObtainFailedException, IOException, InvalidTokenOffsetsException {
+ final String TEXT = "the fox jumped";
+ final Directory directory = newDirectory();
+ final IndexWriter indexWriter = new IndexWriter(directory,
+ newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random, MockTokenizer.WHITESPACE, false)));
+ try {
+ final Document document = new Document();
+ document.add(new Field(FIELD, new TokenStreamConcurrent(),
+ TermVector.WITH_POSITIONS_OFFSETS));
+ indexWriter.addDocument(document);
+ } finally {
+ indexWriter.close();
+ }
+ final IndexReader indexReader = IndexReader.open(directory, true);
+ try {
+ assertEquals(1, indexReader.numDocs());
+ final IndexSearcher indexSearcher = newSearcher(indexReader);
+ try {
+ final Query phraseQuery = new SpanNearQuery(new SpanQuery[] {
+ new SpanTermQuery(new Term(FIELD, "fox")),
+ new SpanTermQuery(new Term(FIELD, "jumped")) }, 0, true);
+ final FixedBitSet bitset = new FixedBitSet(indexReader.maxDoc());
+ indexSearcher.search(phraseQuery, new Collector() {
+ private int baseDoc;
+
+ @Override
+ public boolean acceptsDocsOutOfOrder() {
+ return true;
+ }
+
+ @Override
+ public void collect(int i) throws IOException {
+ bitset.set(this.baseDoc + i);
+ }
+
+ @Override
+ public void setNextReader(IndexReader indexreader, int i)
+ throws IOException {
+ this.baseDoc = i;
+ }
+
+ @Override
+ public void setScorer(org.apache.lucene.search.Scorer scorer)
+ throws IOException {
+ // Do Nothing
+ }
+ });
+ assertEquals(1, bitset.cardinality());
+ final int maxDoc = indexReader.maxDoc();
+ final Highlighter highlighter = new Highlighter(
+ new SimpleHTMLFormatter(), new SimpleHTMLEncoder(),
+ new QueryScorer(phraseQuery));
+ for (int position = bitset.nextSetBit(0); position >= 0 && position < maxDoc-1; position = bitset
+ .nextSetBit(position + 1)) {
+ assertEquals(0, position);
+ final TokenStream tokenStream = TokenSources.getTokenStream(
+ (TermPositionVector) indexReader.getTermFreqVector(position,
+ FIELD), false);
+ assertEquals(highlighter.getBestFragment(new TokenStreamConcurrent(),
+ TEXT), highlighter.getBestFragment(tokenStream, TEXT));
+ }
+ } finally {
+ indexSearcher.close();
+ }
+ } finally {
+ indexReader.close();
+ directory.close();
+ }
+ }
+
+ public void testSparsePhrase() throws CorruptIndexException,
+ LockObtainFailedException, IOException, InvalidTokenOffsetsException {
+ final String TEXT = "the fox did not jump";
+ final Directory directory = newDirectory();
+ final IndexWriter indexWriter = new IndexWriter(directory,
+ newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random, MockTokenizer.WHITESPACE, false)));
+ try {
+ final Document document = new Document();
+ document.add(new Field(FIELD, new TokenStreamSparse(),
+ TermVector.WITH_POSITIONS_OFFSETS));
+ indexWriter.addDocument(document);
+ } finally {
+ indexWriter.close();
+ }
+ final IndexReader indexReader = IndexReader.open(directory, true);
+ try {
+ assertEquals(1, indexReader.numDocs());
+ final IndexSearcher indexSearcher = newSearcher(indexReader);
+ try {
+ final PhraseQuery phraseQuery = new PhraseQuery();
+ phraseQuery.add(new Term(FIELD, "did"));
+ phraseQuery.add(new Term(FIELD, "jump"));
+ phraseQuery.setSlop(0);
+ TopDocs hits = indexSearcher.search(phraseQuery, 1);
+ assertEquals(0, hits.totalHits);
+ final Highlighter highlighter = new Highlighter(
+ new SimpleHTMLFormatter(), new SimpleHTMLEncoder(),
+ new QueryScorer(phraseQuery));
+ final TokenStream tokenStream = TokenSources
+ .getTokenStream((TermPositionVector) indexReader.getTermFreqVector(
+ 0, FIELD), false);
+ assertEquals(
+ highlighter.getBestFragment(new TokenStreamSparse(), TEXT),
+ highlighter.getBestFragment(tokenStream, TEXT));
+ } finally {
+ indexSearcher.close();
+ }
+ } finally {
+ indexReader.close();
+ directory.close();
+ }
+ }
+
+ public void testSparsePhraseWithNoPositions() throws CorruptIndexException,
+ LockObtainFailedException, IOException, InvalidTokenOffsetsException {
+ final String TEXT = "the fox did not jump";
+ final Directory directory = newDirectory();
+ final IndexWriter indexWriter = new IndexWriter(directory,
+ newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random, MockTokenizer.WHITESPACE, false)));
+ try {
+ final Document document = new Document();
+ document.add(new Field(FIELD, TEXT, Store.YES, Index.ANALYZED,
+ TermVector.WITH_OFFSETS));
+ indexWriter.addDocument(document);
+ } finally {
+ indexWriter.close();
+ }
+ final IndexReader indexReader = IndexReader.open(directory, true);
+ try {
+ assertEquals(1, indexReader.numDocs());
+ final IndexSearcher indexSearcher = newSearcher(indexReader);
+ try {
+ final PhraseQuery phraseQuery = new PhraseQuery();
+ phraseQuery.add(new Term(FIELD, "did"));
+ phraseQuery.add(new Term(FIELD, "jump"));
+ phraseQuery.setSlop(1);
+ TopDocs hits = indexSearcher.search(phraseQuery, 1);
+ assertEquals(1, hits.totalHits);
+ final Highlighter highlighter = new Highlighter(
+ new SimpleHTMLFormatter(), new SimpleHTMLEncoder(),
+ new QueryScorer(phraseQuery));
+ final TokenStream tokenStream = TokenSources.getTokenStream(
+ (TermPositionVector) indexReader.getTermFreqVector(0, FIELD), true);
+ assertEquals("the fox <B>did</B> not <B>jump</B>", highlighter
+ .getBestFragment(tokenStream, TEXT));
+ } finally {
+ indexSearcher.close();
+ }
+ } finally {
+ indexReader.close();
+ directory.close();
+ }
+ }
+
+ public void testSparseSpan() throws CorruptIndexException,
+ LockObtainFailedException, IOException, InvalidTokenOffsetsException {
+ final String TEXT = "the fox did not jump";
+ final Directory directory = newDirectory();
+ final IndexWriter indexWriter = new IndexWriter(directory,
+ newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random, MockTokenizer.WHITESPACE, false)));
+ try {
+ final Document document = new Document();
+ document.add(new Field(FIELD, new TokenStreamSparse(),
+ TermVector.WITH_POSITIONS_OFFSETS));
+ indexWriter.addDocument(document);
+ } finally {
+ indexWriter.close();
+ }
+ final IndexReader indexReader = IndexReader.open(directory, true);
+ try {
+ assertEquals(1, indexReader.numDocs());
+ final IndexSearcher indexSearcher = newSearcher(indexReader);
+ try {
+ final Query phraseQuery = new SpanNearQuery(new SpanQuery[] {
+ new SpanTermQuery(new Term(FIELD, "did")),
+ new SpanTermQuery(new Term(FIELD, "jump")) }, 0, true);
+
+ TopDocs hits = indexSearcher.search(phraseQuery, 1);
+ assertEquals(0, hits.totalHits);
+ final Highlighter highlighter = new Highlighter(
+ new SimpleHTMLFormatter(), new SimpleHTMLEncoder(),
+ new QueryScorer(phraseQuery));
+ final TokenStream tokenStream = TokenSources
+ .getTokenStream((TermPositionVector) indexReader.getTermFreqVector(
+ 0, FIELD), false);
+ assertEquals(
+ highlighter.getBestFragment(new TokenStreamSparse(), TEXT),
+ highlighter.getBestFragment(tokenStream, TEXT));
+ } finally {
+ indexSearcher.close();
+ }
+ } finally {
+ indexReader.close();
+ directory.close();
+ }
+ }
+
+ private static final class TokenStreamSparse extends TokenStream {
+ private Token[] tokens;
+
+ private int i = -1;
+
+ private final CharTermAttribute termAttribute = addAttribute(CharTermAttribute.class);
+ private final OffsetAttribute offsetAttribute = addAttribute(OffsetAttribute.class);
+ private final PositionIncrementAttribute positionIncrementAttribute = addAttribute(PositionIncrementAttribute.class);
+
+ public TokenStreamSparse() {
+ reset();
+ }
+
+ @Override
+ public boolean incrementToken() throws IOException {
+ this.i++;
+ if (this.i >= this.tokens.length) {
+ return false;
+ }
+ clearAttributes();
+ termAttribute.setEmpty().append(this.tokens[i]);
+ offsetAttribute.setOffset(this.tokens[i].startOffset(), this.tokens[i]
+ .endOffset());
+ positionIncrementAttribute.setPositionIncrement(this.tokens[i]
+ .getPositionIncrement());
+ return true;
+ }
+
+ @Override
+ public void reset() {
+ this.i = -1;
+ this.tokens = new Token[] {
+ new Token(new char[] { 't', 'h', 'e' }, 0, 3, 0, 3),
+ new Token(new char[] { 'f', 'o', 'x' }, 0, 3, 4, 7),
+ new Token(new char[] { 'd', 'i', 'd' }, 0, 3, 8, 11),
+ new Token(new char[] { 'j', 'u', 'm', 'p' }, 0, 4, 16, 20) };
+ this.tokens[3].setPositionIncrement(2);
+ }
+ }
+
+ private static final class TokenStreamConcurrent extends TokenStream {
+ private Token[] tokens;
+
+ private int i = -1;
+
+ private final CharTermAttribute termAttribute = addAttribute(CharTermAttribute.class);
+ private final OffsetAttribute offsetAttribute = addAttribute(OffsetAttribute.class);
+ private final PositionIncrementAttribute positionIncrementAttribute = addAttribute(PositionIncrementAttribute.class);
+
+ public TokenStreamConcurrent() {
+ reset();
+ }
+
+ @Override
+ public boolean incrementToken() throws IOException {
+ this.i++;
+ if (this.i >= this.tokens.length) {
+ return false;
+ }
+ clearAttributes();
+ termAttribute.setEmpty().append(this.tokens[i]);
+ offsetAttribute.setOffset(this.tokens[i].startOffset(), this.tokens[i]
+ .endOffset());
+ positionIncrementAttribute.setPositionIncrement(this.tokens[i]
+ .getPositionIncrement());
+ return true;
+ }
+
+ @Override
+ public void reset() {
+ this.i = -1;
+ this.tokens = new Token[] {
+ new Token(new char[] { 't', 'h', 'e' }, 0, 3, 0, 3),
+ new Token(new char[] { 'f', 'o', 'x' }, 0, 3, 4, 7),
+ new Token(new char[] { 'j', 'u', 'm', 'p' }, 0, 4, 8, 14),
+ new Token(new char[] { 'j', 'u', 'm', 'p', 'e', 'd' }, 0, 6, 8, 14) };
+ this.tokens[3].setPositionIncrement(0);
+ }
+ }
+
+}
fnp / pylucene.git / blobdiff