package com.atomikos.persistence.imp;
import java.io.FileOutputStream;
import java.io.IOException;
import com.atomikos.logging.Logger;
import com.atomikos.logging.LoggerFactory;
import com.atomikos.persistence.LogException;
import com.atomikos.util.VersionedFile;
public class AbstractLogStream {
protected static final Logger LOGGER = LoggerFactory.createLogger(AbstractLogStream.class);
protected FileOutputStream output_;
protected boolean simulateCrash_;
protected boolean corrupt_;
protected VersionedFile file_;
public AbstractLogStream(String baseDir, String baseName) {
file_ = new VersionedFile(baseDir, baseName, ".log");
simulateCrash_ = false;
corrupt_ = false;
}
protected void closeOutput() throws LogException {
// try to close the previous output stream, if any.
try {
if (file_ != null) {
file_.close();
if (LOGGER.isInfoEnabled()) {
LOGGER.logInfo("Logfile closed: " + file_.getCurrentVersionFileName());
}
}
output_ = null;
// ooutput_ = null;
} catch (IOException e) {
throw new LogException("Error closing previous output", e);
}
}
/**
* Makes write checkpoint crash before old file delete.
*
* For debugging only.
*/
public void setCrashMode() {
simulateCrash_ = true;
}
public synchronized void close() throws LogException {
closeOutput();
}
public void finalize() throws Throwable {
try {
close();
} finally {
super.finalize();
}
}
public long getSize() throws LogException {
return file_.getSize();
}
}