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// Copyright (C) 2016 The Android Open Source Project
//
// 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 com.google.gerrit.lucene;
import static com.google.common.collect.Iterables.getOnlyElement;
import static com.google.gerrit.lucene.LuceneChangeIndex.ID_SORT_FIELD;
import static com.google.gerrit.lucene.LuceneChangeIndex.UPDATED_SORT_FIELD;
import static com.google.gerrit.server.index.change.ChangeSchemaDefinitions.NAME;
import com.google.gerrit.index.FieldDef;
import com.google.gerrit.index.QueryOptions;
import com.google.gerrit.index.Schema;
import com.google.gerrit.index.Schema.Values;
import com.google.gerrit.index.query.DataSource;
import com.google.gerrit.index.query.FieldBundle;
import com.google.gerrit.index.query.Predicate;
import com.google.gerrit.index.query.QueryParseException;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.server.config.SitePaths;
import com.google.gerrit.server.index.AutoFlush;
import com.google.gerrit.server.index.change.ChangeField;
import com.google.gerrit.server.index.change.ChangeIndex;
import com.google.gerrit.server.query.change.ChangeData;
import java.io.IOException;
import java.nio.file.Path;
import java.sql.Timestamp;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.NumericDocValuesField;
import org.apache.lucene.search.SearcherFactory;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
public class ChangeSubIndex extends AbstractLuceneIndex<Change.Id, ChangeData>
implements ChangeIndex {
ChangeSubIndex(
Schema<ChangeData> schema,
SitePaths sitePaths,
Path path,
GerritIndexWriterConfig writerConfig,
SearcherFactory searcherFactory,
AutoFlush autoFlush)
throws IOException {
this(
schema,
sitePaths,
FSDirectory.open(path),
path.getFileName().toString(),
writerConfig,
searcherFactory,
autoFlush);
}
ChangeSubIndex(
Schema<ChangeData> schema,
SitePaths sitePaths,
Directory dir,
String subIndex,
GerritIndexWriterConfig writerConfig,
SearcherFactory searcherFactory,
AutoFlush autoFlush)
throws IOException {
super(schema, sitePaths, dir, NAME, subIndex, writerConfig, searcherFactory, autoFlush);
}
@Override
public void replace(ChangeData obj) {
throw new UnsupportedOperationException("don't use ChangeSubIndex directly");
}
@Override
public void delete(Change.Id key) {
throw new UnsupportedOperationException("don't use ChangeSubIndex directly");
}
@Override
public DataSource<ChangeData> getSource(Predicate<ChangeData> p, QueryOptions opts)
throws QueryParseException {
throw new UnsupportedOperationException("don't use ChangeSubIndex directly");
}
// Make method public so that it can be used in LuceneChangeIndex
@Override
public FieldBundle toFieldBundle(Document doc) {
return super.toFieldBundle(doc);
}
@Override
void add(Document doc, Values<ChangeData> values) {
// Add separate DocValues fields for those fields needed for sorting.
FieldDef<ChangeData, ?> f = values.getField();
if (f == ChangeField.LEGACY_ID) {
int v = (Integer) getOnlyElement(values.getValues());
doc.add(new NumericDocValuesField(ID_SORT_FIELD, v));
} else if (f == ChangeField.UPDATED) {
long t = ((Timestamp) getOnlyElement(values.getValues())).getTime();
doc.add(new NumericDocValuesField(UPDATED_SORT_FIELD, t));
}
super.add(doc, values);
}
@Override
protected ChangeData fromDocument(Document doc) {
throw new UnsupportedOperationException("don't use ChangeSubIndex directly");
}
}
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