// TODO: not sure this test is that great, we should probably peek inside PerFieldPostingsFormat
// or something?!
@Test
public void testChangeCodecAndMerge() throws IOException {
Directory dir = newDirectory();
if (VERBOSE) {
System.out.println("TEST: make new index");
}
IndexWriterConfig iwconf =
newIndexWriterConfig(new MockAnalyzer(random()))
.setOpenMode(OpenMode.CREATE)
.setCodec(new MockCodec());
iwconf.setMaxBufferedDocs(IndexWriterConfig.DISABLE_AUTO_FLUSH);
// ((LogMergePolicy) iwconf.getMergePolicy()).setMergeFactor(10);
IndexWriter writer = newWriter(dir, iwconf);
addDocs(writer, 10);
writer.commit();
assertQuery(new Term("content", "aaa"), dir, 10);
if (VERBOSE) {
System.out.println("TEST: addDocs3");
}
addDocs3(writer, 10);
writer.commit();
writer.close();
assertQuery(new Term("content", "ccc"), dir, 10);
assertQuery(new Term("content", "aaa"), dir, 10);
Codec codec = iwconf.getCodec();
iwconf =
newIndexWriterConfig(new MockAnalyzer(random()))
.setOpenMode(OpenMode.APPEND)
.setCodec(codec);
// ((LogMergePolicy) iwconf.getMergePolicy()).setNoCFSRatio(0.0);
// ((LogMergePolicy) iwconf.getMergePolicy()).setMergeFactor(10);
iwconf.setMaxBufferedDocs(IndexWriterConfig.DISABLE_AUTO_FLUSH);
iwconf.setCodec(new MockCodec2()); // uses standard for field content
writer = newWriter(dir, iwconf);
// swap in new codec for currently written segments
if (VERBOSE) {
System.out.println("TEST: add docs w/ Standard codec for content field");
}
addDocs2(writer, 10);
writer.commit();
codec = iwconf.getCodec();
assertEquals(30, writer.maxDoc());
assertQuery(new Term("content", "bbb"), dir, 10);
assertQuery(new Term("content", "ccc"), dir, 10); // //
assertQuery(new Term("content", "aaa"), dir, 10);
if (VERBOSE) {
System.out.println("TEST: add more docs w/ new codec");
}
addDocs2(writer, 10);
writer.commit();
assertQuery(new Term("content", "ccc"), dir, 10);
assertQuery(new Term("content", "bbb"), dir, 20);
assertQuery(new Term("content", "aaa"), dir, 10);
assertEquals(40, writer.maxDoc());
if (VERBOSE) {
System.out.println("TEST: now optimize");
}
writer.forceMerge(1);
assertEquals(40, writer.maxDoc());
writer.close();
assertQuery(new Term("content", "ccc"), dir, 10);
assertQuery(new Term("content", "bbb"), dir, 20);
assertQuery(new Term("content", "aaa"), dir, 10);
dir.close();
}
