| /* |
| * 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. |
| */ |
| package org.apache.lucene.codecs.asserting; |
| |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.Collections; |
| |
| import org.apache.lucene.codecs.TermVectorsFormat; |
| import org.apache.lucene.codecs.TermVectorsReader; |
| import org.apache.lucene.codecs.TermVectorsWriter; |
| import org.apache.lucene.index.AssertingLeafReader; |
| import org.apache.lucene.index.FieldInfo; |
| import org.apache.lucene.index.FieldInfos; |
| import org.apache.lucene.index.Fields; |
| import org.apache.lucene.index.SegmentInfo; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.store.IOContext; |
| import org.apache.lucene.util.Accountable; |
| import org.apache.lucene.util.BytesRef; |
| import org.apache.lucene.util.TestUtil; |
| |
| /** |
| * Just like the default vectors format but with additional asserts. |
| */ |
| public class AssertingTermVectorsFormat extends TermVectorsFormat { |
| private final TermVectorsFormat in = TestUtil.getDefaultCodec().termVectorsFormat(); |
| |
| @Override |
| public TermVectorsReader vectorsReader(Directory directory, SegmentInfo segmentInfo, FieldInfos fieldInfos, IOContext context) throws IOException { |
| return new AssertingTermVectorsReader(in.vectorsReader(directory, segmentInfo, fieldInfos, context)); |
| } |
| |
| @Override |
| public TermVectorsWriter vectorsWriter(Directory directory, SegmentInfo segmentInfo, IOContext context) throws IOException { |
| return new AssertingTermVectorsWriter(in.vectorsWriter(directory, segmentInfo, context)); |
| } |
| |
| static class AssertingTermVectorsReader extends TermVectorsReader { |
| private final TermVectorsReader in; |
| |
| AssertingTermVectorsReader(TermVectorsReader in) { |
| this.in = in; |
| // do a few simple checks on init |
| assert toString() != null; |
| assert ramBytesUsed() >= 0; |
| assert getChildResources() != null; |
| } |
| |
| @Override |
| public void close() throws IOException { |
| in.close(); |
| in.close(); // close again |
| } |
| |
| @Override |
| public Fields get(int doc) throws IOException { |
| Fields fields = in.get(doc); |
| return fields == null ? null : new AssertingLeafReader.AssertingFields(fields); |
| } |
| |
| @Override |
| public TermVectorsReader clone() { |
| return new AssertingTermVectorsReader(in.clone()); |
| } |
| |
| @Override |
| public long ramBytesUsed() { |
| long v = in.ramBytesUsed(); |
| assert v >= 0; |
| return v; |
| } |
| |
| @Override |
| public Collection<Accountable> getChildResources() { |
| Collection<Accountable> res = in.getChildResources(); |
| TestUtil.checkReadOnly(res); |
| return res; |
| } |
| |
| @Override |
| public void checkIntegrity() throws IOException { |
| in.checkIntegrity(); |
| } |
| |
| @Override |
| public TermVectorsReader getMergeInstance() { |
| return new AssertingTermVectorsReader(in.getMergeInstance()); |
| } |
| |
| @Override |
| public String toString() { |
| return getClass().getSimpleName() + "(" + in.toString() + ")"; |
| } |
| } |
| |
| enum Status { |
| UNDEFINED, STARTED, FINISHED; |
| } |
| |
| static class AssertingTermVectorsWriter extends TermVectorsWriter { |
| private final TermVectorsWriter in; |
| private Status docStatus, fieldStatus, termStatus; |
| private int docCount, fieldCount, termCount, positionCount; |
| boolean hasPositions; |
| |
| AssertingTermVectorsWriter(TermVectorsWriter in) { |
| this.in = in; |
| docStatus = Status.UNDEFINED; |
| fieldStatus = Status.UNDEFINED; |
| termStatus = Status.UNDEFINED; |
| fieldCount = termCount = positionCount = 0; |
| } |
| |
| @Override |
| public void startDocument(int numVectorFields) throws IOException { |
| assert fieldCount == 0; |
| assert docStatus != Status.STARTED; |
| in.startDocument(numVectorFields); |
| docStatus = Status.STARTED; |
| fieldCount = numVectorFields; |
| docCount++; |
| } |
| |
| @Override |
| public void finishDocument() throws IOException { |
| assert fieldCount == 0; |
| assert docStatus == Status.STARTED; |
| in.finishDocument(); |
| docStatus = Status.FINISHED; |
| } |
| |
| @Override |
| public void startField(FieldInfo info, int numTerms, boolean positions, |
| boolean offsets, boolean payloads) throws IOException { |
| assert termCount == 0; |
| assert docStatus == Status.STARTED; |
| assert fieldStatus != Status.STARTED; |
| in.startField(info, numTerms, positions, offsets, payloads); |
| fieldStatus = Status.STARTED; |
| termCount = numTerms; |
| hasPositions = positions || offsets || payloads; |
| } |
| |
| @Override |
| public void finishField() throws IOException { |
| assert termCount == 0; |
| assert fieldStatus == Status.STARTED; |
| in.finishField(); |
| fieldStatus = Status.FINISHED; |
| --fieldCount; |
| } |
| |
| @Override |
| public void startTerm(BytesRef term, int freq) throws IOException { |
| assert docStatus == Status.STARTED; |
| assert fieldStatus == Status.STARTED; |
| assert termStatus != Status.STARTED; |
| in.startTerm(term, freq); |
| termStatus = Status.STARTED; |
| positionCount = hasPositions ? freq : 0; |
| } |
| |
| @Override |
| public void finishTerm() throws IOException { |
| assert positionCount == 0; |
| assert docStatus == Status.STARTED; |
| assert fieldStatus == Status.STARTED; |
| assert termStatus == Status.STARTED; |
| in.finishTerm(); |
| termStatus = Status.FINISHED; |
| --termCount; |
| } |
| |
| @Override |
| public void addPosition(int position, int startOffset, int endOffset, |
| BytesRef payload) throws IOException { |
| assert docStatus == Status.STARTED; |
| assert fieldStatus == Status.STARTED; |
| assert termStatus == Status.STARTED; |
| in.addPosition(position, startOffset, endOffset, payload); |
| --positionCount; |
| } |
| |
| @Override |
| public void finish(FieldInfos fis, int numDocs) throws IOException { |
| assert docCount == numDocs; |
| assert docStatus == (numDocs > 0 ? Status.FINISHED : Status.UNDEFINED); |
| assert fieldStatus != Status.STARTED; |
| assert termStatus != Status.STARTED; |
| in.finish(fis, numDocs); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| in.close(); |
| in.close(); // close again |
| } |
| |
| @Override |
| public long ramBytesUsed() { |
| return in.ramBytesUsed(); |
| } |
| |
| @Override |
| public Collection<Accountable> getChildResources() { |
| return Collections.singleton(in); |
| } |
| } |
| } |