private void handle(APIDeleteImageMsg msg) {
final APIDeleteImageEvent evt = new APIDeleteImageEvent(msg.getId());
final String issuer = ImageVO.class.getSimpleName();
ImageDeletionStruct struct = new ImageDeletionStruct();
struct.setImage(ImageInventory.valueOf(self));
struct.setBackupStorageUuids(msg.getBackupStorageUuids());
final List<ImageDeletionStruct> ctx = Arrays.asList(struct);
FlowChain chain = FlowChainBuilder.newSimpleFlowChain();
chain.setName(String.format("delete-image-%s", msg.getUuid()));
if (msg.getDeletionMode() == APIDeleteMessage.DeletionMode.Permissive) {
chain
.then(
new NoRollbackFlow() {
@Override
public void run(final FlowTrigger trigger, Map data) {
casf.asyncCascade(
CascadeConstant.DELETION_CHECK_CODE,
issuer,
ctx,
new Completion(trigger) {
@Override
public void success() {
trigger.next();
}
@Override
public void fail(ErrorCode errorCode) {
trigger.fail(errorCode);
}
});
}
})
.then(
new NoRollbackFlow() {
@Override
public void run(final FlowTrigger trigger, Map data) {
casf.asyncCascade(
CascadeConstant.DELETION_DELETE_CODE,
issuer,
ctx,
new Completion(trigger) {
@Override
public void success() {
trigger.next();
}
@Override
public void fail(ErrorCode errorCode) {
trigger.fail(errorCode);
}
});
}
});
} else {
chain.then(
new NoRollbackFlow() {
@Override
public void run(final FlowTrigger trigger, Map data) {
casf.asyncCascade(
CascadeConstant.DELETION_FORCE_DELETE_CODE,
issuer,
ctx,
new Completion(trigger) {
@Override
public void success() {
trigger.next();
}
@Override
public void fail(ErrorCode errorCode) {
trigger.fail(errorCode);
}
});
}
});
}
chain
.done(
new FlowDoneHandler(msg) {
@Override
public void handle(Map data) {
casf.asyncCascadeFull(
CascadeConstant.DELETION_CLEANUP_CODE, issuer, ctx, new NopeCompletion());
bus.publish(evt);
}
})
.error(
new FlowErrorHandler(msg) {
@Override
public void handle(ErrorCode errCode, Map data) {
evt.setErrorCode(
errf.instantiateErrorCode(SysErrors.DELETE_RESOURCE_ERROR, errCode));
bus.publish(evt);
}
})
.start();
}
private void handle(final ImageDeletionMsg msg) {
final ImageDeletionReply reply = new ImageDeletionReply();
if (self.getBackupStorageRefs().isEmpty()) {
// the image is not on any backup storage; mostly likely the image is not in the status of
// Ready, for example
// it's still downloading
// in this case, we directly delete it from the database
dbf.remove(self);
bus.reply(msg, reply);
return;
}
final ImageDeletionPolicy deletionPolicy =
msg.getDeletionPolicy() == null
? deletionPolicyMgr.getDeletionPolicy(self.getUuid())
: ImageDeletionPolicy.valueOf(msg.getDeletionPolicy());
FlowChain chain = FlowChainBuilder.newSimpleFlowChain();
chain.setName(String.format("delete-image-%s", self.getUuid()));
Collection<ImageBackupStorageRefVO> toDelete =
msg.getBackupStorageUuids() == null
? self.getBackupStorageRefs()
: CollectionUtils.transformToList(
self.getBackupStorageRefs(),
new Function<ImageBackupStorageRefVO, ImageBackupStorageRefVO>() {
@Override
public ImageBackupStorageRefVO call(ImageBackupStorageRefVO arg) {
return msg.getBackupStorageUuids().contains(arg.getBackupStorageUuid())
? arg
: null;
}
});
for (final ImageBackupStorageRefVO ref : toDelete) {
chain.then(
new NoRollbackFlow() {
String __name__ =
String.format(
"delete-image-%s-from-backup-storage-%s",
self.getUuid(), ref.getBackupStorageUuid());
@Override
public void run(final FlowTrigger trigger, Map data) {
if (deletionPolicy == ImageDeletionPolicy.Direct) {
DeleteBitsOnBackupStorageMsg dmsg = new DeleteBitsOnBackupStorageMsg();
dmsg.setBackupStorageUuid(ref.getBackupStorageUuid());
dmsg.setInstallPath(ref.getInstallPath());
bus.makeTargetServiceIdByResourceUuid(
dmsg, BackupStorageConstant.SERVICE_ID, dmsg.getBackupStorageUuid());
bus.send(
dmsg,
new CloudBusCallBack(trigger) {
@Override
public void run(MessageReply reply) {
if (!reply.isSuccess()) {
// TODO
logger.warn(
String.format(
"failed to delete image[uuid:%s, name:%s] from backup storage[uuid:%s] because %s, need to garbage collect it",
self.getUuid(),
self.getName(),
reply.getError(),
ref.getBackupStorageUuid()));
} else {
returnBackupStorageCapacity(ref.getBackupStorageUuid(), self.getSize());
dbf.remove(ref);
}
trigger.next();
}
});
} else if (deletionPolicy == ImageDeletionPolicy.DeleteReference) {
dbf.remove(ref);
logger.debug(
String.format(
"delete the image[uuid: %s, name:%s]'s reference of the backup storage[uuid:%s]",
self.getUuid(), self.getName(), ref.getBackupStorageUuid()));
trigger.next();
} else {
ref.setStatus(ImageStatus.Deleted);
dbf.update(ref);
trigger.next();
}
}
});
}
chain
.done(
new FlowDoneHandler(msg) {
@Override
public void handle(Map data) {
self = dbf.reload(self);
if (self.getBackupStorageRefs().isEmpty()) {
dbf.remove(self);
if (deletionPolicy == ImageDeletionPolicy.DeleteReference) {
logger.debug(
String.format(
"successfully directly deleted the image[uuid:%s, name:%s] from the database,"
+ " as the policy is DeleteReference, it's still on the physical backup storage",
self.getUuid(), self.getName()));
} else {
logger.debug(
String.format(
"successfully directly deleted the image[uuid:%s, name:%s]",
self.getUuid(), self.getName()));
}
} else {
int deleteCount = 0;
for (ImageBackupStorageRefVO ref : self.getBackupStorageRefs()) {
if (ref.getStatus() == ImageStatus.Deleted) {
deleteCount++;
}
}
if (deleteCount == self.getBackupStorageRefs().size()) {
self.setStatus(ImageStatus.Deleted);
self = dbf.updateAndRefresh(self);
logger.debug(
String.format(
"successfully deleted the image[uuid:%s, name:%s] with deletion policy[%s]",
self.getUuid(), self.getName(), deletionPolicy));
}
}
bus.reply(msg, reply);
}
})
.error(
new FlowErrorHandler(msg) {
@Override
public void handle(ErrorCode errCode, Map data) {
reply.setError(errCode);
bus.reply(msg, reply);
}
})
.start();
}