private void checkCreationInvariants(Viewpoint viewpoint, Block block)
throws BlockNotVisibleException {
UserViewpoint userview = null;
if (viewpoint instanceof UserViewpoint) userview = (UserViewpoint) viewpoint;
if (block.getInclusion() == StackInclusion.ONLY_WHEN_VIEWING_SELF) {
User user = identitySpider.lookupUser(block.getData1AsGuid());
if (userview == null || !userview.getViewer().equals(user)) {
// FIXME should this be a RuntimeException? logger.warn is here so we can investigate
// that if the exception ever really happens
logger.warn(
"Trying to view an ONLY_WHEN_VIEWING_SELF block from a different viewpoint: {} block={}",
userview,
block);
throw new BlockNotVisibleException(
"ONLY_WHEN_VIEWING_SELF block is not visible to non-self viewpoint");
}
}
}
private Set<User> getUsersWhoCareAboutData1User(Block block, User user) {
Set<User> peopleWhoCare = null;
switch (block.getInclusion()) {
case IN_ALL_STACKS:
case ONLY_WHEN_VIEWED_BY_OTHERS:
peopleWhoCare =
identitySpider.getUsersWhoHaveUserAsContact(SystemViewpoint.getInstance(), user);
// we also show each block to its "owner" when it is IN_ALL_STACKS;
// we include the "owner" for the ONLY_WHEN_VIEWED_BY_OTHERS block, so
// that the block is displayed in the owner's mugshot when it is viewed
// by another person
peopleWhoCare.add(user);
return peopleWhoCare;
case ONLY_WHEN_VIEWING_SELF:
peopleWhoCare = Collections.singleton(user);
return peopleWhoCare;
// no default, it hides bugs
}
throw new RuntimeException("invalid inclusion " + block);
}