/**
* Parses HTTP parameters in an appropriate format and return back map of values to predefined
* list of names.
*
* @param req Request.
* @return Map of parsed parameters.
*/
@SuppressWarnings({"unchecked"})
private Map<String, Object> parameters(ServletRequest req) {
Map<String, String[]> params = req.getParameterMap();
if (F.isEmpty(params)) return Collections.emptyMap();
Map<String, Object> map = U.newHashMap(params.size());
for (Map.Entry<String, String[]> entry : params.entrySet())
map.put(entry.getKey(), parameter(entry.getValue()));
return map;
}
/** {@inheritDoc} */
@Override
public void prepareMarshal(GridCacheContext<K, V> ctx) throws GridException {
super.prepareMarshal(ctx);
if (err != null) errBytes = ctx.marshaller().marshal(err);
metaDataBytes = marshalCollection(metadata, ctx);
dataBytes = fields ? marshalFieldsCollection(data, ctx) : marshalCollection(data, ctx);
if (ctx.deploymentEnabled() && !F.isEmpty(data)) {
for (Object o : data) {
if (o instanceof Map.Entry) {
Map.Entry e = (Map.Entry) o;
prepareObject(e.getKey(), ctx);
prepareObject(e.getValue(), ctx);
}
}
}
}
/** {@inheritDoc} */
@Override
public GridFuture<?> addData(Collection<? extends Map.Entry<K, V>> entries) {
A.notEmpty(entries, "entries");
enterBusy();
try {
GridFutureAdapter<Object> resFut = new GridFutureAdapter<>(ctx);
activeFuts.add(resFut);
resFut.listenAsync(rmvActiveFut);
Collection<K> keys = new GridConcurrentHashSet<>(entries.size(), 1.0f, 16);
for (Map.Entry<K, V> entry : entries) keys.add(entry.getKey());
load0(entries, resFut, keys, 0);
return resFut;
} finally {
leaveBusy();
}
}
/**
* @param entries Entries.
* @param resFut Result future.
* @param activeKeys Active keys.
* @param remaps Remaps count.
*/
private void load0(
Collection<? extends Map.Entry<K, V>> entries,
final GridFutureAdapter<Object> resFut,
final Collection<K> activeKeys,
final int remaps) {
assert entries != null;
if (remaps >= MAX_REMAP_CNT) {
resFut.onDone(new GridException("Failed to finish operation (too many remaps): " + remaps));
return;
}
Map<GridNode, Collection<Map.Entry<K, V>>> mappings = new HashMap<>();
boolean initPda = ctx.deploy().enabled() && jobPda == null;
for (Map.Entry<K, V> entry : entries) {
GridNode node;
try {
K key = entry.getKey();
assert key != null;
if (initPda) {
jobPda = new DataLoaderPda(key, entry.getValue(), updater);
initPda = false;
}
node = ctx.affinity().mapKeyToNode(cacheName, key);
} catch (GridException e) {
resFut.onDone(e);
return;
}
if (node == null) {
resFut.onDone(
new GridTopologyException(
"Failed to map key to node "
+ "(no nodes with cache found in topology) [infos="
+ entries.size()
+ ", cacheName="
+ cacheName
+ ']'));
return;
}
Collection<Map.Entry<K, V>> col = mappings.get(node);
if (col == null) mappings.put(node, col = new ArrayList<>());
col.add(entry);
}
for (final Map.Entry<GridNode, Collection<Map.Entry<K, V>>> e : mappings.entrySet()) {
final UUID nodeId = e.getKey().id();
Buffer buf = bufMappings.get(nodeId);
if (buf == null) {
Buffer old = bufMappings.putIfAbsent(nodeId, buf = new Buffer(e.getKey()));
if (old != null) buf = old;
}
final Collection<Map.Entry<K, V>> entriesForNode = e.getValue();
GridInClosure<GridFuture<?>> lsnr =
new GridInClosure<GridFuture<?>>() {
@Override
public void apply(GridFuture<?> t) {
try {
t.get();
for (Map.Entry<K, V> e : entriesForNode) activeKeys.remove(e.getKey());
if (activeKeys.isEmpty()) resFut.onDone();
} catch (GridException e1) {
if (log.isDebugEnabled())
log.debug("Future finished with error [nodeId=" + nodeId + ", err=" + e1 + ']');
if (cancelled) {
resFut.onDone(
new GridException(
"Data loader has been cancelled: " + GridDataLoaderImpl.this, e1));
} else load0(entriesForNode, resFut, activeKeys, remaps + 1);
}
}
};
GridFutureAdapter<?> f;
try {
f = buf.update(entriesForNode, lsnr);
} catch (GridInterruptedException e1) {
resFut.onDone(e1);
return;
}
if (ctx.discovery().node(nodeId) == null) {
if (bufMappings.remove(nodeId, buf)) buf.onNodeLeft();
if (f != null)
f.onDone(
new GridTopologyException(
"Failed to wait for request completion " + "(node has left): " + nodeId));
}
}
}