@Override
public ClientKey getKey(Object token, ObjectContainer container) {
if (persistent) {
container.activate(this, 1);
container.activate(segment, 1);
}
synchronized (segment) {
if (cancelled) {
if (logMINOR)
Logger.minor(this, "Segment is finishing when getting key " + token + " on " + this);
return null;
}
ClientKey key = segment.getBlockKey(((MySendableRequestItem) token).x, container);
if (key == null) {
if (segment.isFinished(container)) {
Logger.error(this, "Segment finished but didn't tell us! " + this);
} else if (segment.isFinishing(container)) {
Logger.error(this, "Segment finishing but didn't tell us! " + this);
} else {
Logger.error(
this,
"Segment not finishing yet still returns null for getKey()!: "
+ token
+ " for "
+ this,
new Exception("debug"));
}
}
return key;
}
}
@Override
public boolean hasValidKeys(
KeysFetchingLocally keys, ObjectContainer container, ClientContext context) {
if (persistent) {
container.activate(this, 1);
container.activate(blockNums, 1);
container.activate(segment, 1);
}
boolean hasSet = false;
boolean retval = false;
synchronized (segment) {
for (int i = 0; i < 10; i++) {
Integer ret;
int x;
if (blockNums.isEmpty()) {
break;
}
x = context.random.nextInt(blockNums.size());
ret = blockNums.get(x);
int block = ret;
Key key = segment.getBlockNodeKey(block, container);
if (key == null) {
if (segment.isFinishing(container) || segment.isFinished(container)) return false;
if (segment.haveBlock(block, container))
Logger.error(
this,
"Already have block "
+ ret
+ " but was in blockNums on "
+ this
+ " in hasValidKeys");
else
Logger.error(
this, "Key is null for block " + ret + " for " + this + " in hasValidKeys");
blockNums.remove(x);
if (persistent) {
container.delete(ret);
if (!hasSet) {
hasSet = true;
container.store(blockNums);
}
}
continue;
}
if (keys.hasKey(key)) {
continue;
}
retval = true;
break;
}
}
if (persistent) {
container.deactivate(blockNums, 5);
container.deactivate(segment, 1);
}
return retval;
}
private SendableRequestItem getRandomBlockNum(
KeysFetchingLocally keys, ClientContext context, ObjectContainer container) {
if (persistent) {
container.activate(this, 1);
container.activate(blockNums, 1);
container.activate(segment, 1);
}
logMINOR = Logger.shouldLog(Logger.MINOR, this);
synchronized (segment) {
if (blockNums.isEmpty()) {
if (logMINOR) Logger.minor(this, "No blocks to remove");
return null;
}
for (int i = 0; i < 10; i++) {
Integer ret;
int x;
if (blockNums.size() == 0) return null;
x = context.random.nextInt(blockNums.size());
ret = blockNums.get(x);
int num = ret;
Key key = segment.getBlockNodeKey(num, container);
if (key == null) {
if (segment.isFinishing(container) || segment.isFinished(container)) return null;
if (segment.haveBlock(num, container))
Logger.error(this, "Already have block " + ret + " but was in blockNums on " + this);
else Logger.error(this, "Key is null for block " + ret + " for " + this);
continue;
}
if (keys.hasKey(key)) {
continue;
}
if (logMINOR)
Logger.minor(
this,
"Removing block "
+ x
+ " of "
+ (blockNums.size() + 1)
+ " : "
+ ret
+ " on "
+ this);
return new MySendableRequestItem(num);
}
return null;
}
}
public boolean isEmpty(ObjectContainer container) {
if (persistent) container.activate(segment, 1);
return segment.isFinishing(container);
}