| /* |
| * 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 org.apache.lucene.codecs.StoredFieldsFormat; |
| import org.apache.lucene.codecs.StoredFieldsReader; |
| import org.apache.lucene.codecs.StoredFieldsWriter; |
| import org.apache.lucene.index.FieldInfo; |
| import org.apache.lucene.index.FieldInfos; |
| import org.apache.lucene.index.IndexableField; |
| import org.apache.lucene.index.SegmentInfo; |
| import org.apache.lucene.index.StoredFieldVisitor; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.store.IOContext; |
| import org.apache.lucene.util.Accountable; |
| import org.apache.lucene.util.TestUtil; |
| |
| /** |
| * Just like the default stored fields format but with additional asserts. |
| */ |
| public class AssertingStoredFieldsFormat extends StoredFieldsFormat { |
| private final StoredFieldsFormat in = TestUtil.getDefaultCodec().storedFieldsFormat(); |
| |
| @Override |
| public StoredFieldsReader fieldsReader(Directory directory, SegmentInfo si, FieldInfos fn, IOContext context) throws IOException { |
| return new AssertingStoredFieldsReader(in.fieldsReader(directory, si, fn, context), si.maxDoc(), false); |
| } |
| |
| @Override |
| public StoredFieldsWriter fieldsWriter(Directory directory, SegmentInfo si, IOContext context) throws IOException { |
| return new AssertingStoredFieldsWriter(in.fieldsWriter(directory, si, context)); |
| } |
| |
| static class AssertingStoredFieldsReader extends StoredFieldsReader { |
| private final StoredFieldsReader in; |
| private final int maxDoc; |
| private final boolean merging; |
| private final Thread creationThread; |
| |
| AssertingStoredFieldsReader(StoredFieldsReader in, int maxDoc, boolean merging) { |
| this.in = in; |
| this.maxDoc = maxDoc; |
| this.merging = merging; |
| this.creationThread = Thread.currentThread(); |
| // 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 void visitDocument(int n, StoredFieldVisitor visitor) throws IOException { |
| AssertingCodec.assertThread("StoredFieldsReader", creationThread); |
| assert n >= 0 && n < maxDoc; |
| in.visitDocument(n, visitor); |
| } |
| |
| @Override |
| public StoredFieldsReader clone() { |
| assert merging == false : "Merge instances do not support cloning"; |
| return new AssertingStoredFieldsReader(in.clone(), maxDoc, false); |
| } |
| |
| @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 StoredFieldsReader getMergeInstance() { |
| return new AssertingStoredFieldsReader(in.getMergeInstance(), maxDoc, true); |
| } |
| |
| @Override |
| public String toString() { |
| return getClass().getSimpleName() + "(" + in.toString() + ")"; |
| } |
| } |
| |
| enum Status { |
| UNDEFINED, STARTED, FINISHED; |
| } |
| |
| static class AssertingStoredFieldsWriter extends StoredFieldsWriter { |
| private final StoredFieldsWriter in; |
| private int numWritten; |
| private Status docStatus; |
| |
| AssertingStoredFieldsWriter(StoredFieldsWriter in) { |
| this.in = in; |
| this.docStatus = Status.UNDEFINED; |
| } |
| |
| @Override |
| public void startDocument() throws IOException { |
| assert docStatus != Status.STARTED; |
| in.startDocument(); |
| numWritten++; |
| docStatus = Status.STARTED; |
| } |
| |
| @Override |
| public void finishDocument() throws IOException { |
| assert docStatus == Status.STARTED; |
| in.finishDocument(); |
| docStatus = Status.FINISHED; |
| } |
| |
| @Override |
| public void writeField(FieldInfo info, IndexableField field) throws IOException { |
| assert docStatus == Status.STARTED; |
| in.writeField(info, field); |
| } |
| |
| @Override |
| public void finish(FieldInfos fis, int numDocs) throws IOException { |
| assert docStatus == (numDocs > 0 ? Status.FINISHED : Status.UNDEFINED); |
| in.finish(fis, numDocs); |
| assert numDocs == numWritten; |
| } |
| |
| @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 in.getChildResources(); |
| } |
| } |
| } |