/** @throws Exception */
protected void openFile() throws Exception {
flush();
ByteBuffer bufferWrite = fileFactory.newBuffer(journal.getFileSize());
writingChannel = HornetQBuffers.wrappedBuffer(bufferWrite);
currentFile = filesRepository.takeFile(false, false, false, true);
sequentialFile = currentFile.getFile();
sequentialFile.open(1, false);
currentFile = new JournalFileImpl(sequentialFile, nextOrderingID++, JournalImpl.FORMAT_VERSION);
JournalImpl.writeHeader(writingChannel, journal.getUserVersion(), currentFile.getFileID());
}
/** Write the record to the current file. */
private void writeRecord(
JournalInternalRecord encoder, final boolean sync, final IOCompletion callback)
throws Exception {
lockAppend.lock();
try {
if (callback != null) {
callback.storeLineUp();
}
currentFile = journal.switchFileIfNecessary(encoder.getEncodeSize());
encoder.setFileID(currentFile.getRecordID());
if (callback != null) {
currentFile.getFile().write(encoder, sync, callback);
} else {
currentFile.getFile().write(encoder, sync);
}
} finally {
lockAppend.unlock();
}
}
public static SequentialFile writeControlFile(
final SequentialFileFactory fileFactory,
final List<JournalFile> files,
final List<JournalFile> newFiles,
final List<Pair<String, String>> renames)
throws Exception {
SequentialFile controlFile =
fileFactory.createSequentialFile(AbstractJournalUpdateTask.FILE_COMPACT_CONTROL, 1);
try {
controlFile.open(1, false);
JournalImpl.initFileHeader(fileFactory, controlFile, 0, 0);
HornetQBuffer filesToRename = HornetQBuffers.dynamicBuffer(1);
// DataFiles first
if (files == null) {
filesToRename.writeInt(0);
} else {
filesToRename.writeInt(files.size());
for (JournalFile file : files) {
filesToRename.writeUTF(file.getFile().getFileName());
}
}
// New Files second
if (newFiles == null) {
filesToRename.writeInt(0);
} else {
filesToRename.writeInt(newFiles.size());
for (JournalFile file : newFiles) {
filesToRename.writeUTF(file.getFile().getFileName());
}
}
// Renames from clean up third
if (renames == null) {
filesToRename.writeInt(0);
} else {
filesToRename.writeInt(renames.size());
for (Pair<String, String> rename : renames) {
filesToRename.writeUTF(rename.getA());
filesToRename.writeUTF(rename.getB());
}
}
JournalInternalRecord controlRecord =
new JournalAddRecord(
true, 1, (byte) 0, new ByteArrayEncoding(filesToRename.toByteBuffer().array()));
HornetQBuffer renameBuffer = HornetQBuffers.dynamicBuffer(filesToRename.writerIndex());
controlRecord.setFileID(0);
controlRecord.encode(renameBuffer);
ByteBuffer writeBuffer = fileFactory.newBuffer(renameBuffer.writerIndex());
writeBuffer.put(renameBuffer.toByteBuffer().array(), 0, renameBuffer.writerIndex());
writeBuffer.rewind();
controlFile.writeDirect(writeBuffer, true);
return controlFile;
} finally {
controlFile.close();
}
}
