| // Copyright (C) 2014 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 org.apache.lucene.analysis.Analyzer; |
| import org.apache.lucene.index.IndexReader; |
| import org.apache.lucene.index.IndexWriter; |
| import org.apache.lucene.index.IndexWriterConfig; |
| import org.apache.lucene.index.IndexableField; |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.search.Query; |
| import org.apache.lucene.store.Directory; |
| |
| import java.io.IOException; |
| |
| /** Writer that optionally flushes/commits after every write. */ |
| class AutoCommitWriter extends IndexWriter { |
| private boolean autoCommit; |
| |
| AutoCommitWriter(Directory dir, IndexWriterConfig config, boolean autoCommit) |
| throws IOException { |
| super(dir, config); |
| this.autoCommit = autoCommit; |
| } |
| |
| @Override |
| public void addDocument(Iterable<? extends IndexableField> doc) |
| throws IOException { |
| super.addDocument(doc); |
| autoFlush(); |
| } |
| |
| @Override |
| public void addDocument(Iterable<? extends IndexableField> doc, |
| Analyzer analyzer) throws IOException { |
| super.addDocument(doc, analyzer); |
| autoFlush(); |
| } |
| |
| @Override |
| public void addDocuments( |
| Iterable<? extends Iterable<? extends IndexableField>> docs) |
| throws IOException { |
| super.addDocuments(docs); |
| autoFlush(); |
| } |
| |
| @Override |
| public void addDocuments( |
| Iterable<? extends Iterable<? extends IndexableField>> docs, |
| Analyzer analyzer) throws IOException { |
| super.addDocuments(docs, analyzer); |
| autoFlush(); |
| } |
| |
| @Override |
| public void updateDocuments(Term delTerm, |
| Iterable<? extends Iterable<? extends IndexableField>> docs) |
| throws IOException { |
| super.updateDocuments(delTerm, docs); |
| autoFlush(); |
| } |
| |
| @Override |
| public void updateDocuments(Term delTerm, |
| Iterable<? extends Iterable<? extends IndexableField>> docs, |
| Analyzer analyzer) throws IOException { |
| super.updateDocuments(delTerm, docs, analyzer); |
| autoFlush(); |
| } |
| |
| @Override |
| public void deleteDocuments(Term... term) throws IOException { |
| super.deleteDocuments(term); |
| autoFlush(); |
| } |
| |
| @Override |
| public synchronized boolean tryDeleteDocument(IndexReader readerIn, int docID) |
| throws IOException { |
| boolean ret = super.tryDeleteDocument(readerIn, docID); |
| if (ret) { |
| autoFlush(); |
| } |
| return ret; |
| } |
| |
| @Override |
| public void deleteDocuments(Query... queries) throws IOException { |
| super.deleteDocuments(queries); |
| autoFlush(); |
| } |
| |
| @Override |
| public void updateDocument(Term term, Iterable<? extends IndexableField> doc) |
| throws IOException { |
| super.updateDocument(term, doc); |
| autoFlush(); |
| } |
| |
| @Override |
| public void updateDocument(Term term, Iterable<? extends IndexableField> doc, |
| Analyzer analyzer) throws IOException { |
| super.updateDocument(term, doc, analyzer); |
| autoFlush(); |
| } |
| |
| @Override |
| public void deleteAll() throws IOException { |
| super.deleteAll(); |
| autoFlush(); |
| } |
| |
| void manualFlush() throws IOException { |
| flush(true, true); |
| if (autoCommit) { |
| commit(); |
| } |
| } |
| |
| private void autoFlush() throws IOException { |
| if (autoCommit) { |
| manualFlush(); |
| } |
| } |
| } |