@Override
public List<PersistentChosenBlock> makeBlocks(
PersistentChosenRequest request,
RequestScheduler sched,
ObjectContainer container,
ClientContext context) {
if (persistent) {
container.activate(segment, 1);
container.activate(blockNums, 1);
}
Integer[] blockNumbers;
synchronized (this) {
blockNumbers = blockNums.toArray(new Integer[blockNums.size()]);
}
ArrayList<PersistentChosenBlock> blocks = new ArrayList<PersistentChosenBlock>();
Arrays.sort(blockNumbers);
int prevBlockNumber = -1;
for (int i = 0; i < blockNumbers.length; i++) {
int blockNumber = blockNumbers[i];
if (blockNumber == prevBlockNumber) {
Logger.error(
this,
"Duplicate block number in makeBlocks() in " + this + ": two copies of " + blockNumber);
continue;
}
prevBlockNumber = blockNumber;
ClientKey key = segment.getBlockKey(blockNumber, container);
if (key == null) {
if (logMINOR) Logger.minor(this, "Block " + blockNumber + " is null, maybe race condition");
continue;
}
key = key.cloneKey();
Key k = key.getNodeKey(true);
PersistentChosenBlock block =
new PersistentChosenBlock(
false, request, new MySendableRequestItem(blockNumber), k, key, sched);
if (logMINOR)
Logger.minor(
this, "Created block " + block + " for block number " + blockNumber + " on " + this);
blocks.add(block);
}
blocks.trimToSize();
if (persistent) {
container.deactivate(segment, 1);
container.deactivate(blockNums, 1);
}
return blocks;
}
@Override
public SendableRequestItem chooseKey(
KeysFetchingLocally fetching, ObjectContainer container, ClientContext context) {
if (persistent) container.activate(key, 5);
Key k = key.getNodeKey(false);
if (fetching.hasKey(k, this, persistent, container)) return null;
long l = fetching.checkRecentlyFailed(k, realTimeFlag);
long now = System.currentTimeMillis();
if (l > 0 && l > now) {
if (maxRetries == -1 || (maxRetries >= RequestScheduler.COOLDOWN_RETRIES)) {
// FIXME synchronization!!!
if (logMINOR)
Logger.minor(
this,
"RecentlyFailed -> cooldown until " + TimeUtil.formatTime(l - now) + " on " + this);
MyCooldownTrackerItem tracker = makeCooldownTrackerItem(container, context);
tracker.cooldownWakeupTime = Math.max(tracker.cooldownWakeupTime, l);
return null;
} else {
this.onFailure(
new LowLevelGetException(LowLevelGetException.RECENTLY_FAILED),
null,
container,
context);
return null;
}
}
return keys[0];
}
@Override
public void removeFrom(ObjectContainer container, ClientContext context) {
super.removeFrom(container, context);
if (deleteFetchContext) {
container.activate(ctx, 1);
ctx.removeFrom(container);
}
container.activate(key, 5);
key.removeFrom(container);
}
protected void onEncode(ClientKey key, ObjectContainer container, ClientContext context) {
synchronized (this) {
if (finished) return;
if (resultingURI != null) return;
resultingURI = key.getURI();
}
if (persistent) {
container.store(this);
container.activate(cb, 1);
}
cb.onEncode(key, this, container, context);
if (persistent) container.deactivate(cb, 1);
}
@Override
public KeyListener makeKeyListener(
ObjectContainer container, ClientContext context, boolean onStartup) {
if (persistent) {
container.activate(key, 5);
container.activate(parent, 1);
container.activate(ctx, 1);
}
synchronized (this) {
if (finished) return null;
if (cancelled) return null;
}
if (key == null) {
Logger.error(
this,
"Key is null - left over BSSF? on " + this + " in makeKeyListener()",
new Exception("error"));
if (persistent) container.delete(this);
return null;
}
Key newKey = key.getNodeKey(true);
if (parent == null) {
Logger.error(
this,
"Parent is null on "
+ this
+ " persistent="
+ persistent
+ " key="
+ key
+ " ctx="
+ ctx);
if (container != null)
Logger.error(
this,
"Stored = "
+ container.ext().isStored(this)
+ " active = "
+ container.ext().isActive(this));
return null;
}
short prio = parent.getPriorityClass();
KeyListener ret = new SingleKeyListener(newKey, this, prio, persistent, realTimeFlag);
if (persistent) {
container.deactivate(key, 5);
container.deactivate(parent, 1);
container.deactivate(ctx, 1);
}
return ret;
}
@Override
public List<PersistentChosenBlock> makeBlocks(
PersistentChosenRequest request,
RequestScheduler sched,
KeysFetchingLocally keysFetching,
ObjectContainer container,
ClientContext context) {
if (persistent) container.activate(key, 5);
ClientKey ckey = key.cloneKey();
Key k = ckey.getNodeKey(true);
if (keysFetching.hasKey(k, this, persistent, container)) return null;
long l = keysFetching.checkRecentlyFailed(k, realTimeFlag);
long now = System.currentTimeMillis();
if (l > 0 && l > now) {
if (maxRetries == -1 || (maxRetries >= RequestScheduler.COOLDOWN_RETRIES)) {
// FIXME synchronization!!!
if (logMINOR)
Logger.minor(
this,
"RecentlyFailed -> cooldown until " + TimeUtil.formatTime(l - now) + " on " + this);
MyCooldownTrackerItem tracker = makeCooldownTrackerItem(container, context);
tracker.cooldownWakeupTime = Math.max(tracker.cooldownWakeupTime, l);
return null;
} else {
this.onFailure(
new LowLevelGetException(LowLevelGetException.RECENTLY_FAILED),
null,
container,
context);
return null;
}
}
PersistentChosenBlock block =
new PersistentChosenBlock(false, request, keys[0], k, ckey, sched);
return Collections.singletonList(block);
}
@Override
public Key[] listKeys(ObjectContainer container) {
if (container != null && !persistent)
Logger.error(
this,
"listKeys() on "
+ this
+ " but persistent=false, stored is "
+ container.ext().isStored(this)
+ " active is "
+ container.ext().isActive(this));
synchronized (this) {
if (cancelled || finished) return new Key[0];
}
if (persistent) container.activate(key, 5);
return new Key[] {key.getNodeKey(true)};
}