private void addReadPermissions(Set<ObjectPermission> permissions,
            Collection<String> identifiers) {

        // Add a READ permission to the set for each identifier given
        identifiers.forEach(identifier ->
            permissions.add(new ObjectPermission(
                ObjectPermission.Type.READ,
                identifier)
            ));

    }
Adds a new READ permission to the given set of permissions for each of
the given identifiers.

@param permissions
    The set of permissions to add READ permissions to.

@param identifiers
    The identifiers which should each have a corresponding READ
    permission added to the given set.
guacamole-ext/src/main/java/org/apache/guacamole/net/auth/simple/SimpleUser.java