--- /dev/null
+package org.apache.lucene.analysis.shingle;
+
+/**
+ * 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 java.io.StringReader;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.LinkedList;
+
+import org.apache.lucene.analysis.*;
+import org.apache.lucene.analysis.miscellaneous.EmptyTokenStream;
+import org.apache.lucene.analysis.miscellaneous.PrefixAndSuffixAwareTokenFilter;
+import org.apache.lucene.analysis.miscellaneous.SingleTokenTokenStream;
+import org.apache.lucene.analysis.payloads.PayloadHelper;
+import org.apache.lucene.analysis.shingle.ShingleMatrixFilter.Matrix;
+import org.apache.lucene.analysis.shingle.ShingleMatrixFilter.Matrix.Column;
+import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
+import org.apache.lucene.analysis.tokenattributes.FlagsAttribute;
+import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
+import org.apache.lucene.analysis.tokenattributes.PayloadAttribute;
+import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute;
+import org.apache.lucene.analysis.tokenattributes.TypeAttribute;
+
+@Deprecated
+public class TestShingleMatrixFilter extends BaseTokenStreamTestCase {
+
+ public void testIterator() throws IOException {
+
+ WhitespaceTokenizer wst = new WhitespaceTokenizer(TEST_VERSION_CURRENT, new StringReader("one two three four five"));
+ ShingleMatrixFilter smf = new ShingleMatrixFilter(wst, 2, 2, '_', false, new ShingleMatrixFilter.OneDimensionalNonWeightedTokenSettingsCodec());
+
+ int i;
+ for(i=0; smf.incrementToken(); i++) {}
+ assertEquals(4, i);
+
+ // call next once more. this should return false again rather than throwing an exception (LUCENE-1939)
+ assertFalse(smf.incrementToken());
+
+ System.currentTimeMillis();
+
+ }
+
+ public void testBehavingAsShingleFilter() throws IOException {
+
+ ShingleMatrixFilter.defaultSettingsCodec = null;
+
+ TokenStream ts;
+
+ ts = new ShingleMatrixFilter(new EmptyTokenStream(), 1, 2, new Character(' '), false, new ShingleMatrixFilter.OneDimensionalNonWeightedTokenSettingsCodec());
+ assertFalse(ts.incrementToken());
+
+ TokenListStream tls;
+ LinkedList<Token> tokens;
+
+ // test a plain old token stream with synonyms translated to rows.
+
+ tokens = new LinkedList<Token>();
+ tokens.add(createToken("please", 0, 6));
+ tokens.add(createToken("divide", 7, 13));
+ tokens.add(createToken("this", 14, 18));
+ tokens.add(createToken("sentence", 19, 27));
+ tokens.add(createToken("into", 28, 32));
+ tokens.add(createToken("shingles", 33, 39));
+
+ tls = new TokenListStream(tokens);
+
+ // bi-grams
+
+ ts = new ShingleMatrixFilter(tls, 1, 2, new Character(' '), false, new ShingleMatrixFilter.OneDimensionalNonWeightedTokenSettingsCodec());
+
+ assertTokenStreamContents(ts,
+ new String[] { "please", "please divide", "divide", "divide this",
+ "this", "this sentence", "sentence", "sentence into", "into",
+ "into shingles", "shingles" },
+ new int[] { 0, 0, 7, 7, 14, 14, 19, 19, 28, 28, 33 },
+ new int[] { 6, 13, 13, 18, 18, 27, 27, 32, 32, 39, 39 });
+ }
+
+ /**
+ * Extracts a matrix from a token stream.
+ * @throws IOException
+ */
+ public void testTokenStream() throws IOException {
+
+ ShingleMatrixFilter.defaultSettingsCodec = null;//new ShingleMatrixFilter.SimpleThreeDimensionalTokenSettingsCodec();
+
+ TokenStream ts;
+ TokenStream tls;
+ LinkedList<Token> tokens;
+
+ // test a plain old token stream with synonyms tranlated to rows.
+
+ tokens = new LinkedList<Token>();
+ tokens.add(tokenFactory("hello", 1, 0, 4));
+ tokens.add(tokenFactory("greetings", 0, 0, 4));
+ tokens.add(tokenFactory("world", 1, 5, 10));
+ tokens.add(tokenFactory("earth", 0, 5, 10));
+ tokens.add(tokenFactory("tellus", 0, 5, 10));
+
+ tls = new TokenListStream(tokens);
+
+ // bi-grams
+
+ ts = new ShingleMatrixFilter(tls, 2, 2, new Character('_'), false, new ShingleMatrixFilter.TwoDimensionalNonWeightedSynonymTokenSettingsCodec());
+
+ assertNext(ts, "hello_world");
+ assertNext(ts, "greetings_world");
+ assertNext(ts, "hello_earth");
+ assertNext(ts, "greetings_earth");
+ assertNext(ts, "hello_tellus");
+ assertNext(ts, "greetings_tellus");
+ assertFalse(ts.incrementToken());
+
+ // bi-grams with no spacer character, start offset, end offset
+
+ tls.reset();
+ ts = new ShingleMatrixFilter(tls, 2, 2, null, false, new ShingleMatrixFilter.TwoDimensionalNonWeightedSynonymTokenSettingsCodec());
+ assertNext(ts, "helloworld", 0, 10);
+ assertNext(ts, "greetingsworld", 0, 10);
+ assertNext(ts, "helloearth", 0, 10);
+ assertNext(ts, "greetingsearth", 0, 10);
+ assertNext(ts, "hellotellus", 0, 10);
+ assertNext(ts, "greetingstellus", 0, 10);
+ assertFalse(ts.incrementToken());
+
+
+ // add ^_prefix_and_suffix_$
+ //
+ // using 3d codec as it supports weights
+
+ ShingleMatrixFilter.defaultSettingsCodec = new ShingleMatrixFilter.SimpleThreeDimensionalTokenSettingsCodec();
+
+ tokens = new LinkedList<Token>();
+ tokens.add(tokenFactory("hello", 1, 1f, 0, 4, ShingleMatrixFilter.TokenPositioner.newColumn));
+ tokens.add(tokenFactory("greetings", 0, 1f, 0, 4, ShingleMatrixFilter.TokenPositioner.newRow));
+ tokens.add(tokenFactory("world", 1, 1f, 5, 10, ShingleMatrixFilter.TokenPositioner.newColumn));
+ tokens.add(tokenFactory("earth", 0, 1f, 5, 10, ShingleMatrixFilter.TokenPositioner.newRow));
+ tokens.add(tokenFactory("tellus", 0, 1f, 5, 10, ShingleMatrixFilter.TokenPositioner.newRow));
+
+ tls = new TokenListStream(tokens);
+
+ ts = new PrefixAndSuffixAwareTokenFilter(new SingleTokenTokenStream(tokenFactory("^", 1, 100f, 0, 0)), tls, new SingleTokenTokenStream(tokenFactory("$", 1, 50f, 0, 0)));
+ tls = new CachingTokenFilter(ts);
+
+ // bi-grams, position incrememnt, weight, start offset, end offset
+
+ ts = new ShingleMatrixFilter(tls, 2, 2, new Character('_'), false);
+//
+// for (Token token = ts.next(new Token()); token != null; token = ts.next(token)) {
+// System.out.println("assertNext(ts, \"" + token.term() + "\", " + token.getPositionIncrement() + ", " + (token.getPayload() == null ? "1.0" : PayloadHelper.decodeFloat(token.getPayload().getData())) + "f, " + token.startOffset() + ", " + token.endOffset() + ");");
+// token.clear();
+// }
+
+ assertNext(ts, "^_hello", 1, 10.049875f, 0, 4);
+ assertNext(ts, "^_greetings", 1, 10.049875f, 0, 4);
+ assertNext(ts, "hello_world", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "greetings_world", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "hello_earth", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "greetings_earth", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "hello_tellus", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "greetings_tellus", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "world_$", 1, 7.1414285f, 5, 10);
+ assertNext(ts, "earth_$", 1, 7.1414285f, 5, 10);
+ assertNext(ts, "tellus_$", 1, 7.1414285f, 5, 10);
+ assertFalse(ts.incrementToken());
+
+ // test unlimited size and allow single boundary token as shingle
+ tls.reset();
+ ts = new ShingleMatrixFilter(tls, 1, Integer.MAX_VALUE, new Character('_'), false);
+
+//
+// for (Token token = ts.next(new Token()); token != null; token = ts.next(token)) {
+// System.out.println("assertNext(ts, \"" + token.term() + "\", " + token.getPositionIncrement() + ", " + (token.getPayload() == null ? "1.0" : PayloadHelper.decodeFloat(token.getPayload().getData())) + "f, " + token.startOffset() + ", " + token.endOffset() + ");");
+// token.clear();
+// }
+
+ assertNext(ts, "^", 1, 10.0f, 0, 0);
+ assertNext(ts, "^_hello", 1, 10.049875f, 0, 4);
+ assertNext(ts, "^_hello_world", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_hello_world_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "hello", 1, 1.0f, 0, 4);
+ assertNext(ts, "hello_world", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "hello_world_$", 1, 7.2111025f, 0, 10);
+ assertNext(ts, "world", 1, 1.0f, 5, 10);
+ assertNext(ts, "world_$", 1, 7.1414285f, 5, 10);
+ assertNext(ts, "$", 1, 7.071068f, 10, 10);
+ assertNext(ts, "^_greetings", 1, 10.049875f, 0, 4);
+ assertNext(ts, "^_greetings_world", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_greetings_world_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "greetings", 1, 1.0f, 0, 4);
+ assertNext(ts, "greetings_world", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "greetings_world_$", 1, 7.2111025f, 0, 10);
+ assertNext(ts, "^_hello_earth", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_hello_earth_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "hello_earth", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "hello_earth_$", 1, 7.2111025f, 0, 10);
+ assertNext(ts, "earth", 1, 1.0f, 5, 10);
+ assertNext(ts, "earth_$", 1, 7.1414285f, 5, 10);
+ assertNext(ts, "^_greetings_earth", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_greetings_earth_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "greetings_earth", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "greetings_earth_$", 1, 7.2111025f, 0, 10);
+ assertNext(ts, "^_hello_tellus", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_hello_tellus_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "hello_tellus", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "hello_tellus_$", 1, 7.2111025f, 0, 10);
+ assertNext(ts, "tellus", 1, 1.0f, 5, 10);
+ assertNext(ts, "tellus_$", 1, 7.1414285f, 5, 10);
+ assertNext(ts, "^_greetings_tellus", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_greetings_tellus_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "greetings_tellus", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "greetings_tellus_$", 1, 7.2111025f, 0, 10);
+
+ assertFalse(ts.incrementToken());
+
+ // test unlimited size but don't allow single boundary token as shingle
+
+ tls.reset();
+ ts = new ShingleMatrixFilter(tls, 1, Integer.MAX_VALUE, new Character('_'), true);
+// for (Token token = ts.next(new Token()); token != null; token = ts.next(token)) {
+// System.out.println("assertNext(ts, \"" + token.term() + "\", " + token.getPositionIncrement() + ", " + (token.getPayload() == null ? "1.0" : PayloadHelper.decodeFloat(token.getPayload().getData())) + "f, " + token.startOffset() + ", " + token.endOffset() + ");");
+// token.clear();
+// }
+
+ assertNext(ts, "^_hello", 1, 10.049875f, 0, 4);
+ assertNext(ts, "^_hello_world", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_hello_world_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "hello", 1, 1.0f, 0, 4);
+ assertNext(ts, "hello_world", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "hello_world_$", 1, 7.2111025f, 0, 10);
+ assertNext(ts, "world", 1, 1.0f, 5, 10);
+ assertNext(ts, "world_$", 1, 7.1414285f, 5, 10);
+ assertNext(ts, "^_greetings", 1, 10.049875f, 0, 4);
+ assertNext(ts, "^_greetings_world", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_greetings_world_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "greetings", 1, 1.0f, 0, 4);
+ assertNext(ts, "greetings_world", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "greetings_world_$", 1, 7.2111025f, 0, 10);
+ assertNext(ts, "^_hello_earth", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_hello_earth_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "hello_earth", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "hello_earth_$", 1, 7.2111025f, 0, 10);
+ assertNext(ts, "earth", 1, 1.0f, 5, 10);
+ assertNext(ts, "earth_$", 1, 7.1414285f, 5, 10);
+ assertNext(ts, "^_greetings_earth", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_greetings_earth_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "greetings_earth", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "greetings_earth_$", 1, 7.2111025f, 0, 10);
+ assertNext(ts, "^_hello_tellus", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_hello_tellus_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "hello_tellus", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "hello_tellus_$", 1, 7.2111025f, 0, 10);
+ assertNext(ts, "tellus", 1, 1.0f, 5, 10);
+ assertNext(ts, "tellus_$", 1, 7.1414285f, 5, 10);
+ assertNext(ts, "^_greetings_tellus", 1, 10.099504f, 0, 10);
+ assertNext(ts, "^_greetings_tellus_$", 1, 12.328828f, 0, 10);
+ assertNext(ts, "greetings_tellus", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "greetings_tellus_$", 1, 7.2111025f, 0, 10);
+
+
+ assertFalse(ts.incrementToken());
+
+ System.currentTimeMillis();
+
+ // multi-token synonyms
+ //
+ // Token[][][] {
+ // {{hello}, {greetings, and, salutations},
+ // {{world}, {earth}, {tellus}}
+ // }
+ //
+
+
+ tokens = new LinkedList<Token>();
+ tokens.add(tokenFactory("hello", 1, 1f, 0, 4, ShingleMatrixFilter.TokenPositioner.newColumn));
+ tokens.add(tokenFactory("greetings", 1, 1f, 0, 4, ShingleMatrixFilter.TokenPositioner.newRow));
+ tokens.add(tokenFactory("and", 1, 1f, 0, 4, ShingleMatrixFilter.TokenPositioner.sameRow));
+ tokens.add(tokenFactory("salutations", 1, 1f, 0, 4, ShingleMatrixFilter.TokenPositioner.sameRow));
+ tokens.add(tokenFactory("world", 1, 1f, 5, 10, ShingleMatrixFilter.TokenPositioner.newColumn));
+ tokens.add(tokenFactory("earth", 1, 1f, 5, 10, ShingleMatrixFilter.TokenPositioner.newRow));
+ tokens.add(tokenFactory("tellus", 1, 1f, 5, 10, ShingleMatrixFilter.TokenPositioner.newRow));
+
+ tls = new TokenListStream(tokens);
+
+ // 2-3 grams
+
+ ts = new ShingleMatrixFilter(tls, 2, 3, new Character('_'), false);
+
+// for (Token token = ts.next(new Token()); token != null; token = ts.next(token)) {
+// System.out.println("assertNext(ts, \"" + token.term() + "\", " + token.getPositionIncrement() + ", " + (token.getPayload() == null ? "1.0" : PayloadHelper.decodeFloat(token.getPayload().getData())) + "f, " + token.startOffset() + ", " + token.endOffset() + ");");
+// token.clear();
+// }
+
+ // shingle, position increment, weight, start offset, end offset
+
+ assertNext(ts, "hello_world", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "greetings_and", 1, 1.4142135f, 0, 4);
+ assertNext(ts, "greetings_and_salutations", 1, 1.7320508f, 0, 4);
+ assertNext(ts, "and_salutations", 1, 1.4142135f, 0, 4);
+ assertNext(ts, "and_salutations_world", 1, 1.7320508f, 0, 10);
+ assertNext(ts, "salutations_world", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "hello_earth", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "and_salutations_earth", 1, 1.7320508f, 0, 10);
+ assertNext(ts, "salutations_earth", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "hello_tellus", 1, 1.4142135f, 0, 10);
+ assertNext(ts, "and_salutations_tellus", 1, 1.7320508f, 0, 10);
+ assertNext(ts, "salutations_tellus", 1, 1.4142135f, 0, 10);
+
+ assertFalse(ts.incrementToken());
+
+ System.currentTimeMillis();
+
+
+ }
+
+ /**
+ * Tests creat shingles from a pre-assembled matrix
+ *
+ * Tests the row token z-axis, multi token synonyms.
+ *
+ * @throws IOException
+ */
+ public void testMatrix() throws IOException {
+ // some other tests set this to null.
+ // set it here in case tests are run out of the usual order.
+ ShingleMatrixFilter.defaultSettingsCodec = new ShingleMatrixFilter.SimpleThreeDimensionalTokenSettingsCodec();
+ Matrix matrix = new Matrix();
+
+ matrix.new Column(tokenFactory("no", 1));
+ matrix.new Column(tokenFactory("surprise", 1));
+ matrix.new Column(tokenFactory("to", 1));
+ matrix.new Column(tokenFactory("see", 1));
+ matrix.new Column(tokenFactory("england", 1));
+ matrix.new Column(tokenFactory("manager", 1));
+
+ Column col = matrix.new Column();
+
+ // sven göran eriksson is a multi token synonym to svennis
+ col.new Row().getTokens().add(tokenFactory("svennis", 1));
+
+ Column.Row row = col.new Row();
+ row.getTokens().add(tokenFactory("sven", 1));
+ row.getTokens().add(tokenFactory("göran", 1));
+ row.getTokens().add(tokenFactory("eriksson", 1));
+
+ matrix.new Column(tokenFactory("in", 1));
+ matrix.new Column(tokenFactory("the", 1));
+ matrix.new Column(tokenFactory("croud", 1));
+
+ TokenStream ts = new ShingleMatrixFilter(matrix, 2, 4, new Character('_'), true, new ShingleMatrixFilter.SimpleThreeDimensionalTokenSettingsCodec());
+
+// for (Token token = ts.next(new Token()); token != null; token = ts.next(token)) {
+// System.out.println("assertNext(ts, \"" + token.term() + "\", " + token.getPositionIncrement() + ", " + (token.getPayload() == null ? "1.0" : PayloadHelper.decodeFloat(token.getPayload().getData())) + "f, " + token.startOffset() + ", " + token.endOffset() + ");");
+// token.clear();
+// }
+
+ assertNext(ts, "no_surprise", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "no_surprise_to", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "no_surprise_to_see", 1, 2.0f, 0, 0);
+ assertNext(ts, "surprise_to", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "surprise_to_see", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "surprise_to_see_england", 1, 2.0f, 0, 0);
+ assertNext(ts, "to_see", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "to_see_england", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "to_see_england_manager", 1, 2.0f, 0, 0);
+ assertNext(ts, "see_england", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "see_england_manager", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "see_england_manager_svennis", 1, 2.0f, 0, 0);
+ assertNext(ts, "england_manager", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "england_manager_svennis", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "england_manager_svennis_in", 1, 2.0f, 0, 0);
+ assertNext(ts, "manager_svennis", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "manager_svennis_in", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "manager_svennis_in_the", 1, 2.0f, 0, 0);
+ assertNext(ts, "svennis_in", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "svennis_in_the", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "svennis_in_the_croud", 1, 2.0f, 0, 0);
+ assertNext(ts, "in_the", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "in_the_croud", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "the_croud", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "see_england_manager_sven", 1, 2.0f, 0, 0);
+ assertNext(ts, "england_manager_sven", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "england_manager_sven_göran", 1, 2.0f, 0, 0);
+ assertNext(ts, "manager_sven", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "manager_sven_göran", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "manager_sven_göran_eriksson", 1, 2.0f, 0, 0);
+ assertNext(ts, "sven_göran", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "sven_göran_eriksson", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "sven_göran_eriksson_in", 1, 2.0f, 0, 0);
+ assertNext(ts, "göran_eriksson", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "göran_eriksson_in", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "göran_eriksson_in_the", 1, 2.0f, 0, 0);
+ assertNext(ts, "eriksson_in", 1, 1.4142135f, 0, 0);
+ assertNext(ts, "eriksson_in_the", 1, 1.7320508f, 0, 0);
+ assertNext(ts, "eriksson_in_the_croud", 1, 2.0f, 0, 0);
+
+ assertFalse(ts.incrementToken());
+
+ }
+
+ private Token tokenFactory(String text, int posIncr, int startOffset, int endOffset) {
+ Token token = new Token(startOffset, endOffset);
+ token.setEmpty().append(text);
+ token.setPositionIncrement(posIncr);
+ return token;
+ }
+
+
+ private Token tokenFactory(String text, int posIncr) {
+ return tokenFactory(text, posIncr, 1f, 0, 0);
+ }
+
+ private Token tokenFactory(String text, int posIncr, float weight, int startOffset, int endOffset) {
+ Token token = new Token(startOffset, endOffset);
+ token.setEmpty().append(text);
+ token.setPositionIncrement(posIncr);
+ ShingleMatrixFilter.defaultSettingsCodec.setWeight(token, weight);
+ return token;
+ }
+
+ private Token tokenFactory(String text, int posIncr, float weight, int startOffset, int endOffset, ShingleMatrixFilter.TokenPositioner positioner) {
+ Token token = new Token(startOffset, endOffset);
+ token.setEmpty().append(text);
+ token.setPositionIncrement(posIncr);
+ ShingleMatrixFilter.defaultSettingsCodec.setWeight(token, weight);
+ ShingleMatrixFilter.defaultSettingsCodec.setTokenPositioner(token, positioner);
+ return token;
+ }
+
+ // assert-methods start here
+
+ private void assertNext(TokenStream ts, String text) throws IOException {
+ CharTermAttribute termAtt = ts.addAttribute(CharTermAttribute.class);
+
+ assertTrue(ts.incrementToken());
+ assertEquals(text, termAtt.toString());
+ }
+
+ private void assertNext(TokenStream ts, String text, int positionIncrement, float boost, int startOffset, int endOffset) throws IOException {
+ CharTermAttribute termAtt = ts.addAttribute(CharTermAttribute.class);
+ PositionIncrementAttribute posIncrAtt = ts.addAttribute(PositionIncrementAttribute.class);
+ PayloadAttribute payloadAtt = ts.addAttribute(PayloadAttribute.class);
+ OffsetAttribute offsetAtt = ts.addAttribute(OffsetAttribute.class);
+
+ assertTrue(ts.incrementToken());
+ assertEquals(text, termAtt.toString());
+ assertEquals(positionIncrement, posIncrAtt.getPositionIncrement());
+ assertEquals(boost, payloadAtt.getPayload() == null ? 1f : PayloadHelper.decodeFloat(payloadAtt.getPayload().getData()), 0);
+ assertEquals(startOffset, offsetAtt.startOffset());
+ assertEquals(endOffset, offsetAtt.endOffset());
+ }
+
+ private void assertNext(TokenStream ts, String text, int startOffset, int endOffset) throws IOException {
+ CharTermAttribute termAtt = ts.addAttribute(CharTermAttribute.class);
+ OffsetAttribute offsetAtt = ts.addAttribute(OffsetAttribute.class);
+
+ assertTrue(ts.incrementToken());
+ assertEquals(text, termAtt.toString());
+ assertEquals(startOffset, offsetAtt.startOffset());
+ assertEquals(endOffset, offsetAtt.endOffset());
+ }
+
+ private static Token createToken(String term, int start, int offset)
+ {
+ Token token = new Token(start, offset);
+ token.setEmpty().append(term);
+ return token;
+ }
+
+
+ public final static class TokenListStream extends TokenStream {
+
+ private Collection<Token> tokens;
+ private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
+ private final PositionIncrementAttribute posIncrAtt = addAttribute(PositionIncrementAttribute.class);
+ private final PayloadAttribute payloadAtt = addAttribute(PayloadAttribute.class);
+ private final OffsetAttribute offsetAtt = addAttribute(OffsetAttribute.class);
+ private final TypeAttribute typeAtt = addAttribute(TypeAttribute.class);
+ private final FlagsAttribute flagsAtt = addAttribute(FlagsAttribute.class);
+
+ public TokenListStream(Collection<Token> tokens) {
+ this.tokens = tokens;
+ }
+
+ private Iterator<Token> iterator;
+
+ @Override
+ public boolean incrementToken() throws IOException {
+ if (iterator == null) {
+ iterator = tokens.iterator();
+ }
+ if (!iterator.hasNext()) {
+ return false;
+ }
+ Token prototype = iterator.next();
+ clearAttributes();
+ termAtt.copyBuffer(prototype.buffer(), 0, prototype.length());
+ posIncrAtt.setPositionIncrement(prototype.getPositionIncrement());
+ flagsAtt.setFlags(prototype.getFlags());
+ offsetAtt.setOffset(prototype.startOffset(), prototype.endOffset());
+ typeAtt.setType(prototype.type());
+ payloadAtt.setPayload(prototype.getPayload());
+
+ return true;
+ }
+
+
+ @Override
+ public void reset() throws IOException {
+ iterator = null;
+ }
+ }
+
+}
fnp / pylucene.git / blobdiff