/**
* Copyright 2014 National University of Ireland, Galway.
*
* This file is part of the SIREn project. Project and contact information:
*
* https://github.com/rdelbru/SIREn
*
* Licensed 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.
*/
package org.sindice.siren.analysis;
import java.io.StringReader;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute;
import org.apache.lucene.analysis.tokenattributes.TypeAttribute;
import org.apache.lucene.util.IntsRef;
import org.apache.lucene.util.LuceneTestCase;
import org.junit.After;
import org.junit.Before;
import org.sindice.siren.analysis.attributes.NodeAttribute;
import org.sindice.siren.analysis.attributes.PositionAttribute;
public abstract class NodeAnalyzerTestCase<A extends Analyzer>
extends LuceneTestCase {
protected A _a;
protected abstract A getNodeAnalyzer();
@Override
@Before
public void setUp()
throws Exception {
super.setUp();
_a = this.getNodeAnalyzer();
}
@Override
@After
public void tearDown()
throws Exception {
super.tearDown();
_a.close();
}
public void assertAnalyzesTo(final Analyzer a, final String input,
final String[] expected)
throws Exception {
this.assertAnalyzesTo(a, input, expected, null);
}
public void assertAnalyzesTo(final Analyzer a, final String input,
final String[] expectedImages,
final String[] expectedTypes)
throws Exception {
this.assertAnalyzesTo(a, input, expectedImages, expectedTypes, null);
}
public void assertAnalyzesTo(final Analyzer a, final String input,
final String[] expectedImages,
final String[] expectedTypes,
final int[] expectedPosIncrs)
throws Exception {
this.assertAnalyzesTo(a, input, expectedImages, expectedTypes, expectedPosIncrs, null,
null);
}
public void assertAnalyzesTo(final Analyzer a, final String input,
final String[] expectedImages,
final String[] expectedTypes,
final int[] expectedPosIncrs,
final IntsRef[] expectedNode,
final int[] expectedPos)
throws Exception {
final TokenStream t = a.tokenStream("", new StringReader(input));
t.reset();
assertTrue("has TermAttribute", t.hasAttribute(CharTermAttribute.class));
final CharTermAttribute termAtt = t.getAttribute(CharTermAttribute.class);
TypeAttribute typeAtt = null;
if (expectedTypes != null) {
assertTrue("has TypeAttribute", t.hasAttribute(TypeAttribute.class));
typeAtt = t.getAttribute(TypeAttribute.class);
}
PositionIncrementAttribute posIncrAtt = null;
if (expectedPosIncrs != null) {
assertTrue("has PositionIncrementAttribute", t.hasAttribute(PositionIncrementAttribute.class));
posIncrAtt = t.getAttribute(PositionIncrementAttribute.class);
}
NodeAttribute nodeAtt = null;
if (expectedNode != null) {
assertTrue("has NodeAttribute", t.hasAttribute(NodeAttribute.class));
nodeAtt = t.getAttribute(NodeAttribute.class);
}
PositionAttribute posAtt = null;
if (expectedPos != null) {
assertTrue("has PositionAttribute", t.hasAttribute(PositionAttribute.class));
posAtt = t.getAttribute(PositionAttribute.class);
}
for (int i = 0; i < expectedImages.length; i++) {
assertTrue("token "+i+" exists", t.incrementToken());
assertEquals("i=" + i, expectedImages[i], termAtt.toString());
if (expectedTypes != null) {
assertEquals(expectedTypes[i], typeAtt.type());
}
if (expectedPosIncrs != null) {
assertEquals(expectedPosIncrs[i], posIncrAtt.getPositionIncrement());
}
if (expectedNode != null) {
assertEquals(expectedNode[i], nodeAtt.node());
}
if (expectedPos != null) {
assertEquals(expectedPos[i], posAtt.position());
}
}
assertFalse("end of stream, received token " + termAtt.toString(), t.incrementToken());
t.end();
t.close();
}
}