public void handleLobs(long fromTime, long toTime, CDOLobHandler handler) throws IOException {
for (DB4OBlob db4oBlob : DB4OStore.getElementsOfType(getObjectContainer(), DB4OBlob.class)) {
byte[] id = HexUtil.hexToBytes(db4oBlob.getId());
byte[] blob = db4oBlob.getValue();
ByteArrayInputStream in = new ByteArrayInputStream(blob);
OutputStream out = handler.handleBlob(id, blob.length);
if (out != null) {
try {
IOUtil.copyBinary(in, out, blob.length);
} finally {
IOUtil.close(out);
}
}
}
for (DB4OClob db4oClob : DB4OStore.getElementsOfType(getObjectContainer(), DB4OClob.class)) {
byte[] id = HexUtil.hexToBytes(db4oClob.getId());
char[] clob = db4oClob.getValue();
CharArrayReader in = new CharArrayReader(clob);
Writer out = handler.handleClob(id, clob.length);
if (out != null) {
try {
IOUtil.copyCharacter(in, out, clob.length);
} finally {
IOUtil.close(out);
}
}
}
}
protected void writeRevision(InternalCDORevision revision, OMMonitor monitor) {
Async async = null;
monitor.begin(10);
try {
try {
async = monitor.forkAsync();
if (revision.isResourceNode()) {
checkDuplicateResources(revision);
}
} finally {
if (async != null) {
async.stop();
}
}
// TODO removal of previous version implies query, this should be optimized
long start = System.currentTimeMillis();
CDOID id = revision.getID();
DB4OStore.removeRevision(getObjectContainer(), id);
DB4ORevision primitiveRevision = DB4ORevision.getDB4ORevision(revision);
writeObject(primitiveRevision, monitor);
long end = System.currentTimeMillis();
OM.LOG.debug("Writing revision " + id + " took: " + (end - start) + " milliseconds");
} finally {
monitor.done();
}
}
public void queryLobs(List<byte[]> ids) {
for (Iterator<byte[]> it = ids.iterator(); it.hasNext(); ) {
byte[] id = it.next();
String key = HexUtil.bytesToHex(id);
if (DB4OStore.getIdentifiableObject(getObjectContainer(), key) == null) {
it.remove();
}
}
}
public InternalCDORevision readRevisionByVersion(
CDOID id, CDOBranchVersion branchVersion, int listChunk, CDORevisionCacheAdder cache) {
DB4ORevision revision = DB4OStore.getRevision(getObjectContainer(), id);
if (revision == null || revision.getVersion() != branchVersion.getVersion()) {
return null;
}
return DB4ORevision.getCDORevision(getStore(), revision);
}
public InternalCDORevision readRevision(
CDOID id, CDOBranchPoint branchPoint, int listChunk, CDORevisionCacheAdder cache) {
DB4ORevision lastRevision = DB4OStore.getRevision(getObjectContainer(), id);
if (lastRevision == null) {
// Revision does not exist. Return null to signal inexistent Revision
return null;
}
return DB4ORevision.getCDORevision(getStore(), lastRevision);
}
protected void writeRevisionDelta(
InternalCDORevisionDelta revisionDelta, CDOBranch branch, long created) {
CDOID id = revisionDelta.getID();
InternalCDORevision revision =
DB4ORevision.getCDORevision(getStore(), DB4OStore.getRevision(getObjectContainer(), id));
InternalCDORevision newRevision = revision.copy();
newRevision.adjustForCommit(branch, created);
revisionDelta.apply(newRevision);
writeRevision(newRevision, new Monitor());
}
@Override
protected void detachObjects(
CDOID[] detachedObjects, CDOBranch branch, long timeStamp, OMMonitor monitor) {
monitor.begin(detachedObjects.length);
try {
for (CDOID id : detachedObjects) {
DB4OStore.removeRevision(getObjectContainer(), id);
monitor.worked();
}
} finally {
monitor.done();
}
}
public void loadLob(byte[] id, OutputStream out) throws IOException {
String key = HexUtil.bytesToHex(id);
IDB4OIdentifiableObject identifiableObject =
DB4OStore.getIdentifiableObject(getObjectContainer(), key);
if (identifiableObject == null) {
throw new IOException("Lob not found: " + key);
}
if (identifiableObject instanceof DB4OBlob) {
DB4OBlob blob = (DB4OBlob) identifiableObject;
byte[] byteArray = blob.getValue();
ByteArrayInputStream in = new ByteArrayInputStream(byteArray);
IOUtil.copyBinary(in, out, byteArray.length);
} else {
DB4OClob clob = (DB4OClob) identifiableObject;
char[] charArray = clob.getValue();
CharArrayReader in = new CharArrayReader(charArray);
IOUtil.copyCharacter(in, new OutputStreamWriter(out), charArray.length);
}
}
