private boolean dumpRecord(
STORE store, int size, StoreChannel fileChannel, ByteBuffer buffer, long id)
throws Exception {
RECORD record = store.forceGetRecord(id);
Object transform = transform(record);
if (transform != null) {
if (!"".equals(transform)) {
out.println(transform);
}
} else {
out.print(record);
buffer.clear();
fileChannel.read(buffer, id * size);
buffer.flip();
if (record.inUse()) {
dumpHex(buffer, id * size);
} else if (allZero(buffer)) {
out.printf(": all zeros @ 0x%x - 0x%x%n", id * size, (id + 1) * size);
} else {
dumpHex(buffer, id * size);
}
}
return record.inUse();
}
@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());
}
}
}
@Override
public int read(ByteBuffer dst) throws IOException {
return delegateChannel.read(dst);
}
@Override
public long read(ByteBuffer[] dsts) throws IOException {
return delegateChannel.read(dsts);
}
@Override
public long read(ByteBuffer[] dsts, int offset, int length) throws IOException {
return delegateChannel.read(dsts, offset, length);
}