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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 java.util.concurrent.TimeUnit.MILLISECONDS;
import static java.util.concurrent.TimeUnit.MINUTES;
import com.google.common.collect.ImmutableMap;
import com.google.gerrit.server.config.ConfigUtil;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.analysis.util.CharArraySet;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.IndexWriterConfig.OpenMode;
import org.eclipse.jgit.lib.Config;
/** Combination of Lucene {@link IndexWriterConfig} with additional Gerrit-specific options. */
class GerritIndexWriterConfig {
private static final ImmutableMap<String, String> CUSTOM_CHAR_MAPPING =
ImmutableMap.of("_", " ", ".", " ");
private final IndexWriterConfig luceneConfig;
private long commitWithinMs;
private final CustomMappingAnalyzer analyzer;
GerritIndexWriterConfig(Config cfg, String name) {
analyzer =
new CustomMappingAnalyzer(
new StandardAnalyzer(CharArraySet.EMPTY_SET), CUSTOM_CHAR_MAPPING);
luceneConfig =
new IndexWriterConfig(analyzer)
.setOpenMode(OpenMode.CREATE_OR_APPEND)
.setCommitOnClose(true);
double m = 1 << 20;
luceneConfig.setRAMBufferSizeMB(
cfg.getLong(
"index",
name,
"ramBufferSize",
(long) (IndexWriterConfig.DEFAULT_RAM_BUFFER_SIZE_MB * m))
/ m);
luceneConfig.setMaxBufferedDocs(
cfg.getInt("index", name, "maxBufferedDocs", IndexWriterConfig.DEFAULT_MAX_BUFFERED_DOCS));
try {
commitWithinMs =
ConfigUtil.getTimeUnit(
cfg, "index", name, "commitWithin", MILLISECONDS.convert(5, MINUTES), MILLISECONDS);
} catch (IllegalArgumentException e) {
commitWithinMs = cfg.getLong("index", name, "commitWithin", 0);
}
}
CustomMappingAnalyzer getAnalyzer() {
return analyzer;
}
IndexWriterConfig getLuceneConfig() {
return luceneConfig;
}
long getCommitWithinMs() {
return commitWithinMs;
}
}
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