/** {@inheritDoc} */
@Nullable
@Override
public GridDeployment explicitDeploy(Class<?> cls, ClassLoader clsLdr) throws GridException {
try {
// Make sure not to deploy peer loaded tasks with non-local class loader,
// if local one exists.
if (clsLdr.getClass().equals(GridDeploymentClassLoader.class)) clsLdr = clsLdr.getParent();
GridDeployment dep;
synchronized (mux) {
boolean deployed = spi.register(clsLdr, cls);
if (deployed) {
dep = getDeployment(cls.getName());
if (dep == null) {
GridDeploymentResource rsrc = spi.findResource(cls.getName());
if (rsrc != null && rsrc.getClassLoader() == clsLdr) {
dep =
deploy(
ctx.config().getDeploymentMode(),
rsrc.getClassLoader(),
rsrc.getResourceClass(),
rsrc.getName());
}
}
if (dep != null) {
recordDeploy(cls, cls.getName(), true);
}
} else {
dep = getDeployment(cls.getName());
}
}
return dep;
} catch (GridSpiException e) {
recordDeployFailed(cls, clsLdr, true);
// Avoid double wrapping.
if (e.getCause() instanceof GridException) {
throw (GridException) e.getCause();
}
throw new GridException("Failed to deploy class: " + cls.getName(), e);
}
}
/**
* Gets alias for a class.
*
* @param dep Deployment.
* @param cls Class.
* @return Alias for a class.
*/
private String getAlias(GridDeployment dep, Class<?> cls) {
String alias = cls.getName();
if (isTask(cls)) {
GridTaskName ann = dep.annotation(cls, GridTaskName.class);
if (ann != null) {
alias = ann.value();
}
}
return alias;
}
/** {@inheritDoc} */
@Override
public void onDeployed(Class<?> cls) {
assert !Thread.holdsLock(mux);
boolean isTask = isTask(cls);
String msg =
(isTask ? "Task" : "Class") + " was deployed in SHARED or CONTINUOUS mode: " + cls;
int type = isTask ? EVT_TASK_DEPLOYED : EVT_CLASS_DEPLOYED;
if (ctx.event().isRecordable(type)) {
GridDeploymentEvent evt = new GridDeploymentEvent();
evt.nodeId(ctx.localNodeId());
evt.message(msg);
evt.type(type);
evt.alias(cls.getName());
ctx.event().record(evt);
}
if (log.isInfoEnabled()) log.info(msg);
}
/**
* @param depMode Deployment mode.
* @param ldr Class loader to deploy.
* @param cls Class.
* @param alias Class alias.
* @return Deployment.
*/
@SuppressWarnings({"ConstantConditions"})
private GridDeployment deploy(
GridDeploymentMode depMode, ClassLoader ldr, Class<?> cls, String alias) {
assert Thread.holdsLock(mux);
LinkedList<GridDeployment> cachedDeps = null;
GridDeployment dep = null;
// Find existing class loader info.
for (LinkedList<GridDeployment> deps : cache.values()) {
for (GridDeployment d : deps) {
if (d.classLoader() == ldr) {
// Cache class and alias.
d.addDeployedClass(cls, alias);
cachedDeps = deps;
dep = d;
break;
}
}
if (cachedDeps != null) {
break;
}
}
if (cachedDeps != null) {
assert dep != null;
cache.put(alias, cachedDeps);
if (!cls.getName().equals(alias)) {
// Cache by class name as well.
cache.put(cls.getName(), cachedDeps);
}
return dep;
}
GridUuid ldrId = GridUuid.randomUuid();
long seqNum = seq.incrementAndGet();
String userVer = getUserVersion(ldr);
dep = new GridDeployment(depMode, ldr, ldrId, seqNum, userVer, cls.getName(), true);
dep.addDeployedClass(cls, alias);
LinkedList<GridDeployment> deps =
F.addIfAbsent(cache, alias, F.<GridDeployment>newLinkedList());
if (!deps.isEmpty()) {
for (GridDeployment d : deps) {
if (!d.isUndeployed()) {
U.error(
log,
"Found more than one active deployment for the same resource "
+ "[cls="
+ cls
+ ", depMode="
+ depMode
+ ", dep="
+ d
+ ']');
return null;
}
}
}
// Add at the beginning of the list for future fast access.
deps.addFirst(dep);
if (!cls.getName().equals(alias)) {
// Cache by class name as well.
cache.put(cls.getName(), deps);
}
if (log.isDebugEnabled()) {
log.debug("Created new deployment: " + dep);
}
return dep;
}