+++ /dev/null
-package org.apache.lucene.search;
-
-/**
- * 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.index.IndexReader;
-import org.apache.lucene.search.Collector;
-import org.apache.lucene.search.Scorer;
-import org.apache.lucene.util.LuceneTestCase;
-import org.junit.Test;
-
-public class MultiCollectorTest extends LuceneTestCase {
-
- private static class DummyCollector extends Collector {
-
- boolean acceptsDocsOutOfOrderCalled = false;
- boolean collectCalled = false;
- boolean setNextReaderCalled = false;
- boolean setScorerCalled = false;
-
- @Override
- public boolean acceptsDocsOutOfOrder() {
- acceptsDocsOutOfOrderCalled = true;
- return true;
- }
-
- @Override
- public void collect(int doc) throws IOException {
- collectCalled = true;
- }
-
- @Override
- public void setNextReader(IndexReader reader, int docBase) throws IOException {
- setNextReaderCalled = true;
- }
-
- @Override
- public void setScorer(Scorer scorer) throws IOException {
- setScorerCalled = true;
- }
-
- }
-
- @Test
- public void testNullCollectors() throws Exception {
- // Tests that the collector rejects all null collectors.
- try {
- MultiCollector.wrap(null, null);
- fail("only null collectors should not be supported");
- } catch (IllegalArgumentException e) {
- // expected
- }
-
- // Tests that the collector handles some null collectors well. If it
- // doesn't, an NPE would be thrown.
- Collector c = MultiCollector.wrap(new DummyCollector(), null, new DummyCollector());
- assertTrue(c instanceof MultiCollector);
- assertTrue(c.acceptsDocsOutOfOrder());
- c.collect(1);
- c.setNextReader(null, 0);
- c.setScorer(null);
- }
-
- @Test
- public void testSingleCollector() throws Exception {
- // Tests that if a single Collector is input, it is returned (and not MultiCollector).
- DummyCollector dc = new DummyCollector();
- assertSame(dc, MultiCollector.wrap(dc));
- assertSame(dc, MultiCollector.wrap(dc, null));
- }
-
- @Test
- public void testCollector() throws Exception {
- // Tests that the collector delegates calls to input collectors properly.
-
- // Tests that the collector handles some null collectors well. If it
- // doesn't, an NPE would be thrown.
- DummyCollector[] dcs = new DummyCollector[] { new DummyCollector(), new DummyCollector() };
- Collector c = MultiCollector.wrap(dcs);
- assertTrue(c.acceptsDocsOutOfOrder());
- c.collect(1);
- c.setNextReader(null, 0);
- c.setScorer(null);
-
- for (DummyCollector dc : dcs) {
- assertTrue(dc.acceptsDocsOutOfOrderCalled);
- assertTrue(dc.collectCalled);
- assertTrue(dc.setNextReaderCalled);
- assertTrue(dc.setScorerCalled);
- }
-
- }
-
-}