@Test
public void shouldRenameFiles() throws IOException {
// given
final EphemeralFileSystemAbstraction fs = new EphemeralFileSystemAbstraction();
fs.mkdirs(storeDir);
final File unrelated = new File(storeDir, "unrelated");
final List<File> files =
Arrays.asList(
new File(storeDir, "active_tx_log"),
new File(storeDir, "tm_tx_log.v0"),
new File(storeDir, "tm_tx_log.v1"),
new File(storeDir, "nioneo_logical.log.1"),
new File(storeDir, "nioneo_logical.log.2"),
new File(storeDir, getLegacyLogFilename(1)),
new File(storeDir, getLegacyLogFilename(2)),
unrelated);
for (File file : files) {
fs.create(file).close();
}
// when
new LegacyLogs(fs, reader, writer).renameLogFiles(storeDir);
// then
final Set<File> expected =
new HashSet<>(
Arrays.asList(
unrelated,
new File(storeDir, getLogFilenameForVersion(1)),
new File(storeDir, getLogFilenameForVersion(2))));
assertEquals(expected, new HashSet<>(Arrays.asList(fs.listFiles(storeDir))));
}
@Test
public void shouldMoveFiles() throws IOException {
// given
final EphemeralFileSystemAbstraction fs = new EphemeralFileSystemAbstraction();
fs.mkdirs(storeDir);
fs.mkdirs(migrationDir);
final Set<File> logsInStoreDir =
new HashSet<>(
Arrays.asList(
new File(storeDir, getLegacyLogFilename(1)),
new File(storeDir, getLegacyLogFilename(2))));
final List<File> logsInMigrationDir =
Arrays.asList(
new File(migrationDir, getLegacyLogFilename(1)),
new File(migrationDir, getLegacyLogFilename(2)));
for (File file : logsInMigrationDir) {
try (StoreChannel channel = fs.create(file)) {
ByteBuffer buffer = ByteBuffer.allocate(8);
buffer.putLong(42);
buffer.flip();
channel.write(buffer);
}
}
// should override older files
for (File file : logsInStoreDir) {
try (StoreChannel channel = fs.create(file)) {
ByteBuffer buffer = ByteBuffer.allocate(8);
buffer.putLong(13);
buffer.flip();
channel.write(buffer);
}
}
// when
new LegacyLogs(fs, reader, writer).operate(FileOperation.MOVE, migrationDir, storeDir);
// then
assertEquals(logsInStoreDir, new HashSet<>(Arrays.asList(fs.listFiles(storeDir))));
for (File file : logsInStoreDir) {
try (StoreChannel channel = fs.open(file, "r")) {
ByteBuffer buffer = ByteBuffer.allocate(8);
channel.read(buffer);
buffer.flip();
assertEquals(42, buffer.getLong());
}
}
}