Examples with AclEntryImpl org.apache.wiki.auth.acl.AclEntryImpl used on opensource projects

Example 1 with AclEntryImpl

use of org.apache.wiki.auth.acl.AclEntryImpl in project jspwiki by apache.

the class PageManager method changeAcl.

/**
 * For a single wiki page, replaces all Acl entries matching a supplied array of Principals
 * with a new Principal.
 *
 * @param page          the wiki page whose Acl is to be modified
 * @param oldPrincipals an array of Principals to replace; all AclEntry objects whose
 *                      {@link AclEntry#getPrincipal()} method returns one of these Principals will be replaced
 * @param newPrincipal  the Principal that should receive the old Principals' permissions
 * @return <code>true</code> if the Acl was actually changed; <code>false</code> otherwise
 */
protected boolean changeAcl(WikiPage page, Principal[] oldPrincipals, Principal newPrincipal) {
    Acl acl = page.getAcl();
    boolean pageChanged = false;
    if (acl != null) {
        Enumeration<AclEntry> entries = acl.entries();
        Collection<AclEntry> entriesToAdd = new ArrayList<AclEntry>();
        Collection<AclEntry> entriesToRemove = new ArrayList<AclEntry>();
        while (entries.hasMoreElements()) {
            AclEntry entry = entries.nextElement();
            if (ArrayUtils.contains(oldPrincipals, entry.getPrincipal())) {
                // Create new entry
                AclEntry newEntry = new AclEntryImpl();
                newEntry.setPrincipal(newPrincipal);
                Enumeration<Permission> permissions = entry.permissions();
                while (permissions.hasMoreElements()) {
                    Permission permission = permissions.nextElement();
                    newEntry.addPermission(permission);
                }
                pageChanged = true;
                entriesToRemove.add(entry);
                entriesToAdd.add(newEntry);
            }
        }
        for (Iterator<AclEntry> ix = entriesToRemove.iterator(); ix.hasNext(); ) {
            AclEntry entry = ix.next();
            acl.removeEntry(entry);
        }
        for (Iterator<AclEntry> ix = entriesToAdd.iterator(); ix.hasNext(); ) {
            AclEntry entry = ix.next();
            acl.addEntry(entry);
        }
    }
    return pageChanged;
}