annotate src/goodjava/lucene/backup/BackupIndexWriter.java @ 1497:f04bfbb08721

link_from
author Franklin Schmidt <fschmidt@gmail.com>
date Fri, 08 May 2020 16:54:30 -0600
parents af55cfad6e12
children 22e15cf73040
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1488
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
1 package goodjava.lucene.backup;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
2
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
3 import java.io.File;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
4 import java.io.IOException;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
5 import java.util.List;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
6 import java.util.ArrayList;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
7 import goodjava.io.IoUtils;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
8 import goodjava.lucene.api.LuceneIndexWriter;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
9 import goodjava.lucene.logging.LoggingIndexWriter;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
10 import goodjava.lucene.logging.LogFile;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
11
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
12
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
13 public class BackupIndexWriter extends LoggingIndexWriter {
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
14 private final String name;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
15 private final File dir;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
16
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
17 public BackupIndexWriter(LuceneIndexWriter indexWriter,File logDir,String name) throws IOException {
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
18 super(indexWriter,logDir);
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
19 this.name = name;
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
20 File f = new File(System.getProperty("java.io.tmpdir"));
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
21 dir = new File(f,"goodjava.lucene/"+name);
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
22 dir.mkdirs();
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
23 }
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
24
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
25 public synchronized void commit() throws IOException {
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
26 super.commit();
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
27 sync();
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
28 }
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
29
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
30 private void sync() throws IOException {
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
31 for( File f : dir.listFiles() ) {
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
32 IoUtils.delete(f);
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
33 }
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
34 List<LogFile> logs = new ArrayList<LogFile>();
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
35 for( LogFile log : this.logs ) {
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
36 File f = new File(dir,log.file.getName());
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
37 IoUtils.link(log.file,f);
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
38 logs.add( new LogFile(f) );
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
39 }
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
40 }
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
41
af55cfad6e12 start lucene.backup
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
42 }