use of org.exoplatform.container.ConcurrentContainer.CreationalContextComponentAdapter in project kernel by exoplatform.
the class MX4JComponentAdapterMT method createPlugin.
private ComponentTask<Void> createPlugin(final MX4JComponentAdapterMT<T> caller, final ConcurrentContainerMT exocontainer, final Class<?> pluginClass, final boolean debug, final org.exoplatform.container.xml.ComponentPlugin plugin, final Constructor<T> constructor, InitParams params, List<Dependency> lDependencies) throws Exception {
final Object[] args = exocontainer.getArguments(constructor, params, lDependencies);
return new ComponentTask<Void>("create/add plugin " + plugin.getName() + " for component " + getComponentImplementation().getName(), exocontainer, caller, ComponentTaskType.INIT) {
public Void execute(final CreationalContextComponentAdapter<?> cCtx) throws Exception {
try {
getContainer().loadArguments(args);
ComponentPlugin cplugin = (ComponentPlugin) constructor.newInstance(args);
cplugin.setName(plugin.getName());
cplugin.setDescription(plugin.getDescription());
Class<?> clazz = getComponentImplementation();
final Method m = getSetMethod(clazz, plugin.getSetMethod(), pluginClass);
if (m == null) {
LOG.error("Cannot find the method '" + plugin.getSetMethod() + "' that has only one parameter of type '" + pluginClass.getName() + "' in the class '" + clazz.getName() + "'.");
return null;
}
final Object[] params = { cplugin };
SecurityHelper.doPrivilegedExceptionAction(new PrivilegedExceptionAction<Void>() {
public Void run() throws Exception {
m.invoke(cCtx.get(), params);
return null;
}
});
if (debug)
LOG.debug("==> add component plugin: " + cplugin);
cplugin.setName(plugin.getName());
cplugin.setDescription(plugin.getDescription());
return null;
} catch (InvocationTargetException e) {
if (e.getCause() instanceof Exception) {
throw (Exception) e.getCause();
}
throw e;
}
}
};
}
use of org.exoplatform.container.ConcurrentContainer.CreationalContextComponentAdapter in project kernel by exoplatform.
the class MX4JComponentAdapter method create.
/**
* {@inheritDoc}
*/
public T create(CreationalContext<T> creationalContext) {
//
T instance;
Component component = null;
ConfigurationManager manager;
String componentKey;
InitParams params = null;
boolean debug = false;
CreationalContextComponentAdapter<T> ctx = (CreationalContextComponentAdapter<T>) creationalContext;
try {
// Avoid to create duplicate instances if it is called at the same time by several threads
if (instance_ != null)
return instance_;
else if (ctx.get() != null)
return ctx.get();
// Get the component
Object key = getComponentKey();
if (key instanceof String)
componentKey = (String) key;
else
componentKey = ((Class<?>) key).getName();
manager = exocontainer.getComponentInstanceOfType(ConfigurationManager.class);
component = manager == null ? null : manager.getComponent(componentKey);
if (component != null) {
params = component.getInitParams();
debug = component.getShowDeployInfo();
}
instance = createInstance(ctx, component, manager, componentKey, params, debug);
if (instance instanceof Startable && exocontainer.canBeStopped()) {
// Start the component if the container is already started
((Startable) instance).start();
}
} catch (Exception ex) {
String msg = "Cannot instantiate component " + getComponentImplementation();
if (component != null) {
msg = "Cannot instantiate component key=" + component.getKey() + " type=" + component.getType() + " found at " + component.getDocumentURL();
}
throw new RuntimeException(msg, ex);
}
return instance;
}
use of org.exoplatform.container.ConcurrentContainer.CreationalContextComponentAdapter in project kernel by exoplatform.
the class MX4JComponentAdapterMT method create.
/**
* {@inheritDoc}
*/
public T create(CreationalContext<T> creationalContext) {
CreationalContextComponentAdapter<T> ctx = (CreationalContextComponentAdapter<T>) creationalContext;
// Avoid to create duplicate instances if it is called at the same time by several threads
if (instance_ != null)
return instance_;
else if (ctx.get() != null)
return ctx.get();
ComponentTaskContext taskCtx = container.getComponentTaskContext();
boolean isRoot = taskCtx.isRoot();
if (!isRoot) {
container.setComponentTaskContext(taskCtx = taskCtx.setLastTaskType(ComponentTaskType.CREATE));
}
try {
ComponentTask<T> task = createTask.get();
T result = task.call(ctx);
if (instance_ != null) {
// to component plugins
return instance_;
} else if (ctx.get() != null)
return ctx.get();
ctx.push(result);
} catch (CyclicDependencyException e) {
throw e;
} catch (Exception e) {
throw new RuntimeException("Cannot create component " + getComponentImplementation(), e);
}
if (isRoot) {
container.setComponentTaskContext(taskCtx = taskCtx.resetDependencies(getComponentKey(), ComponentTaskType.INIT));
} else {
container.setComponentTaskContext(taskCtx = taskCtx.setLastTaskType(ComponentTaskType.INIT));
}
Collection<ComponentTask<Void>> tasks = initTasks.get();
ComponentTask<Void> task = null;
try {
if (tasks != null && !tasks.isEmpty()) {
container.loadDependencies(getComponentKey(), taskCtx, getInitDependencies(), ComponentTaskType.INIT);
for (Iterator<ComponentTask<Void>> it = tasks.iterator(); it.hasNext(); ) {
task = it.next();
task.call(ctx);
task = null;
}
}
if (instance_ != null) {
return instance_;
} else if (instance_ == null && isSingleton) {
// In case of cyclic dependency the component could be already initialized
// so we need to recheck the state
instance_ = ctx.get();
}
} catch (CyclicDependencyException e) {
throw e;
} catch (Exception e) {
if (task != null) {
throw new RuntimeException("Cannot " + task.getName() + " for the component " + getComponentImplementation(), e);
}
throw new RuntimeException("Cannot initialize component " + getComponentImplementation(), e);
}
if (ctx.get() instanceof Startable && exocontainer.canBeStopped()) {
try {
// Start the component if the container is already started
((Startable) ctx.get()).start();
} catch (Exception e) {
throw new RuntimeException("Cannot auto-start component " + getComponentImplementation(), e);
}
}
return ctx.get();
}
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