@Override
protected synchronized void setApplication(Application app) {
if (app.getId().equals(getId())) {
application = getProxy() != null ? (Application) getProxy() : app;
} else {
application = app;
// Alex, Mar 2013: added some checks;
// i *think* these conditions should not happen,
// and so should throw but don't want to break things (yet)
if (getParent() == null) {
log.warn(
"Setting application of " + this + " to " + app + ", but " + this + " is not parented");
} else if (getParent().getApplicationId().equals(app.getParent())) {
log.warn(
"Setting application of "
+ this
+ " to "
+ app
+ ", but parent "
+ getParent()
+ " has different app "
+ getParent().getApplication());
}
}
super.setApplication(app);
}
/** Walks the contents of a ManagementContext, to create a corresponding memento. */
public static BrooklynMemento newBrooklynMemento(ManagementContext managementContext) {
BrooklynMementoImpl.Builder builder = BrooklynMementoImpl.builder();
for (Application app : managementContext.getApplications()) {
builder.applicationIds.add(app.getId());
}
for (Entity entity : managementContext.getEntityManager().getEntities()) {
builder.entities.put(
entity.getId(), ((EntityInternal) entity).getRebindSupport().getMemento());
for (Location location : entity.getLocations()) {
if (!builder.locations.containsKey(location.getId())) {
for (Location locationInHierarchy : TreeUtils.findLocationsInHierarchy(location)) {
if (!builder.locations.containsKey(locationInHierarchy.getId())) {
builder.locations.put(
locationInHierarchy.getId(),
((LocationInternal) locationInHierarchy).getRebindSupport().getMemento());
}
}
}
}
}
for (LocationMemento memento : builder.locations.values()) {
if (memento.getParent() == null) {
builder.topLevelLocationIds.add(memento.getId());
}
}
BrooklynMemento result = builder.build();
MementoValidators.validateMemento(result);
return result;
}
/**
* finds the entity indicated by the given ID or name
*
* <p>prefers ID based lookup in which case appId is optional, and if supplied will be enforced.
* optionally the name can be supplied, for cases when paths should work across versions, in which
* case names will be searched recursively (and the application is required).
*
* @throws 404 or 412 (unless input is null in which case output is null)
*/
public EntityLocal getEntity(String application, String entity) {
if (entity == null) return null;
Application app = application != null ? getApplication(application) : null;
EntityLocal e = (EntityLocal) mgmt.getEntityManager().getEntity(entity);
if (e != null) {
if (!Entitlements.isEntitled(mgmt.getEntitlementManager(), Entitlements.SEE_ENTITY, e)) {
throw WebResourceUtils.notFound(
"Cannot find entity '%s': no known ID and application not supplied for searching",
entity);
}
if (app == null || app.equals(findTopLevelApplication(e))) return e;
throw WebResourceUtils.preconditionFailed(
"Application '%s' specified does not match application '%s' to which entity '%s' (%s) is associated",
application, e.getApplication().getId(), entity, e);
}
if (application == null)
throw WebResourceUtils.notFound(
"Cannot find entity '%s': no known ID and application not supplied for searching",
entity);
assert app != null : "null app should not be returned from getApplication";
e = searchForEntityNamed(app, entity);
if (e != null) return e;
throw WebResourceUtils.notFound(
"Cannot find entity '%s' in application '%s' (%s)", entity, application, app);
}
/**
* looks for the given application instance, first by ID then by name
*
* @throws 404 if not found, or not entitled
*/
public Application getApplication(String application) {
Entity e = mgmt.getEntityManager().getEntity(application);
if (!Entitlements.isEntitled(mgmt.getEntitlementManager(), Entitlements.SEE_ENTITY, e)) {
throw notFound("Application '%s' not found", application);
}
if (e != null && e instanceof Application) return (Application) e;
for (Application app : mgmt.getApplications()) {
if (app.getId().equals(application)) return app;
if (application.equalsIgnoreCase(app.getDisplayName())) return app;
}
throw notFound("Application '%s' not found", application);
}
private Application findTopLevelApplication(Entity e) {
// For nested apps, e.getApplication() can return its direct parent-app rather than the root app
// (particularly if e.getApplication() was called before the parent-app was wired up to its
// parent,
// because that call causes the application to be cached).
// Therefore we continue to walk the hierarchy until we find an "orphaned" application at the
// top.
Application app = e.getApplication();
while (app != null && !app.equals(app.getApplication())) {
app = app.getApplication();
}
return app;
}
@Override
public Application getApplication() {
if (application != null) {
if (application.getId().equals(getId())) return (Application) getProxyIfAvailable();
return application;
}
if (getParent() == null) return (Application) getProxyIfAvailable();
return getParent().getApplication();
}
public Task<?> destroy(final Application application) {
return mgmt.getExecutionManager()
.submit(
MutableMap.of(
"displayName",
"destroying " + application,
"description",
"REST call to destroy application "
+ application.getDisplayName()
+ " ("
+ application
+ ")"),
new Runnable() {
@Override
public void run() {
((EntityInternal) application).destroy();
mgmt.getEntityManager().unmanage(application);
}
});
}
@SuppressWarnings("unchecked")
public Application create(ApplicationSpec spec) {
log.debug("REST creating application instance for {}", spec);
if (!Entitlements.isEntitled(
mgmt.getEntitlementManager(), Entitlements.DEPLOY_APPLICATION, spec)) {
throw WebResourceUtils.unauthorized(
"User '%s' is not authorized to deploy application %s",
Entitlements.getEntitlementContext().user(), spec);
}
final String type = spec.getType();
final String name = spec.getName();
final Map<String, String> configO = spec.getConfig();
final Set<EntitySpec> entities =
(spec.getEntities() == null) ? ImmutableSet.<EntitySpec>of() : spec.getEntities();
final Application instance;
// Load the class; first try to use the appropriate catalog item; but then allow anything that
// is on the classpath
final Class<? extends Entity> clazz;
if (Strings.isEmpty(type)) {
clazz = BasicApplication.class;
} else {
Class<? extends Entity> tempclazz;
try {
tempclazz = getCatalog().loadClassByType(type, Entity.class);
} catch (NoSuchElementException e) {
try {
tempclazz = (Class<? extends Entity>) getCatalog().getRootClassLoader().loadClass(type);
log.info(
"Catalog does not contain item for type {}; loaded class directly instead", type);
} catch (ClassNotFoundException e2) {
log.warn(
"No catalog item for type {}, and could not load class directly; rethrowing", type);
throw e;
}
}
clazz = tempclazz;
}
if (Entitlements.isEntitled(mgmt.getEntitlementManager(), Entitlements.INVOKE_EFFECTOR, null)) {
try {
if (ApplicationBuilder.class.isAssignableFrom(clazz)) {
Constructor<?> constructor = clazz.getConstructor();
ApplicationBuilder appBuilder = (ApplicationBuilder) constructor.newInstance();
if (!Strings.isEmpty(name)) appBuilder.appDisplayName(name);
if (entities.size() > 0)
log.warn(
"Cannot supply additional entities when using an ApplicationBuilder; ignoring in spec {}",
spec);
log.info("REST placing '{}' under management", spec.getName());
appBuilder.configure(convertFlagsToKeys(appBuilder.getType(), configO));
configureRenderingMetadata(spec, appBuilder);
instance = appBuilder.manage(mgmt);
} else if (Application.class.isAssignableFrom(clazz)) {
brooklyn.entity.proxying.EntitySpec<?> coreSpec = toCoreEntitySpec(clazz, name, configO);
configureRenderingMetadata(spec, coreSpec);
instance = (Application) mgmt.getEntityManager().createEntity(coreSpec);
for (EntitySpec entitySpec : entities) {
log.info("REST creating instance for entity {}", entitySpec.getType());
instance.addChild(mgmt.getEntityManager().createEntity(toCoreEntitySpec(entitySpec)));
}
log.info(
"REST placing '{}' under management", spec.getName() != null ? spec.getName() : spec);
Entities.startManagement(instance, mgmt);
} else if (Entity.class.isAssignableFrom(clazz)) {
if (entities.size() > 0)
log.warn(
"Cannot supply additional entities when using a non-application entity; ignoring in spec {}",
spec);
brooklyn.entity.proxying.EntitySpec<?> coreSpec =
toCoreEntitySpec(BasicApplication.class, name, configO);
configureRenderingMetadata(spec, coreSpec);
instance = (Application) mgmt.getEntityManager().createEntity(coreSpec);
final Class<? extends Entity> eclazz =
getCatalog().loadClassByType(spec.getType(), Entity.class);
Entity soleChild =
mgmt.getEntityManager().createEntity(toCoreEntitySpec(eclazz, name, configO));
instance.addChild(soleChild);
instance.addEnricher(Enrichers.builder().propagatingAll().from(soleChild).build());
log.info("REST placing '{}' under management", spec.getName());
Entities.startManagement(instance, mgmt);
} else {
throw new IllegalArgumentException(
"Class " + clazz + " must extend one of ApplicationBuilder, Application or Entity");
}
return instance;
} catch (Exception e) {
log.error("REST failed to create application: " + e, e);
throw Exceptions.propagate(e);
}
}
throw WebResourceUtils.unauthorized(
"User '%s' is not authorized to create application from applicationSpec %s",
Entitlements.getEntitlementContext().user(), spec);
}