@Override
public void close() {
try {
if (debug) {
log.debug("Closing tlog" + this);
}
synchronized (this) {
if (fos != null) {
fos.flush();
fos.close();
// dereference these variables for GC
fos = null;
os = null;
channel = null;
raf = null;
}
}
if (deleteOnClose) {
try {
Files.deleteIfExists(tlogFile.toPath());
} catch (IOException e) {
// TODO: should this class care if a file couldnt be deleted?
// this just emulates previous behavior, where only SecurityException would be handled.
}
}
} catch (IOException e) {
throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, e);
} finally {
assert ObjectReleaseTracker.release(this);
}
}
protected void close() {
try {
if (debug) {
log.debug("Closing tlog" + this);
}
synchronized (this) {
fos.flush();
fos.close();
}
if (deleteOnClose) {
try {
Files.deleteIfExists(tlogFile.toPath());
} catch (IOException e) {
// TODO: should this class care if a file couldnt be deleted?
// this just emulates previous behavior, where only SecurityException would be handled.
}
}
} catch (IOException e) {
throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, e);
} finally {
assert ObjectReleaseTracker.release(this);
}
}
@Test
public void testObjectReleaseTracker() {
ObjectReleaseTracker.track(new Object());
ObjectReleaseTracker.release(new Object());
assertNotNull(ObjectReleaseTracker.clearObjectTrackerAndCheckEmpty());
assertNull(ObjectReleaseTracker.clearObjectTrackerAndCheckEmpty());
Object obj = new Object();
ObjectReleaseTracker.track(obj);
ObjectReleaseTracker.release(obj);
assertNull(ObjectReleaseTracker.clearObjectTrackerAndCheckEmpty());
Object obj1 = new Object();
ObjectReleaseTracker.track(obj1);
Object obj2 = new Object();
ObjectReleaseTracker.track(obj2);
Object obj3 = new Object();
ObjectReleaseTracker.track(obj3);
ObjectReleaseTracker.release(obj1);
ObjectReleaseTracker.release(obj2);
ObjectReleaseTracker.release(obj3);
assertNull(ObjectReleaseTracker.clearObjectTrackerAndCheckEmpty());
ObjectReleaseTracker.track(obj1);
ObjectReleaseTracker.track(obj2);
ObjectReleaseTracker.track(obj3);
ObjectReleaseTracker.release(obj1);
ObjectReleaseTracker.release(obj2);
// ObjectReleaseTracker.release(obj3);
assertNotNull(ObjectReleaseTracker.clearObjectTrackerAndCheckEmpty());
assertNull(ObjectReleaseTracker.clearObjectTrackerAndCheckEmpty());
}
TransactionLog(File tlogFile, Collection<String> globalStrings, boolean openExisting) {
boolean success = false;
try {
if (debug) {
log.debug(
"New TransactionLog file="
+ tlogFile
+ ", exists="
+ tlogFile.exists()
+ ", size="
+ tlogFile.length()
+ ", openExisting="
+ openExisting);
}
this.tlogFile = tlogFile;
raf = new RandomAccessFile(this.tlogFile, "rw");
long start = raf.length();
channel = raf.getChannel();
os = Channels.newOutputStream(channel);
fos = new FastOutputStream(os, new byte[65536], 0);
// fos = FastOutputStream.wrap(os);
if (openExisting) {
if (start > 0) {
readHeader(null);
raf.seek(start);
assert channel.position() == start;
fos.setWritten(start); // reflect that we aren't starting at the beginning
assert fos.size() == channel.size();
} else {
addGlobalStrings(globalStrings);
}
} else {
if (start > 0) {
log.warn("New transaction log already exists:" + tlogFile + " size=" + raf.length());
return;
}
if (start > 0) {
raf.setLength(0);
}
addGlobalStrings(globalStrings);
}
success = true;
assert ObjectReleaseTracker.track(this);
} catch (IOException e) {
throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, e);
} finally {
if (!success && raf != null) {
try {
raf.close();
} catch (Exception e) {
log.error("Error closing tlog file (after error opening)", e);
}
}
}
}