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package ak.hostadmiral.core.model;
import java.util.*;
import net.sf.hibernate.*;
import net.sf.hibernate.type.Type;
import ak.hostadmiral.util.HibernateUtil;
import ak.hostadmiral.util.ModelException;
import ak.hostadmiral.util.ModelSecurityException;
public class InetDomainManager
implements
UserBeforeDeleteListener,
UserDeletingListener
{
private static InetDomainManager inetDomainManager = null;
private static boolean registered = false;
public static InetDomainManager getInstance()
{
return inetDomainManager;
}
protected static void register()
{
synchronized(InetDomainManager.class) {
if(registered) return;
registered = true;
try {
HibernateUtil.getConfiguration().addResource(
"ak/hostadmiral/core/model/InetDomain.hbm.xml");
inetDomainManager = new InetDomainManager();
}
catch(Exception ex) {
ex.printStackTrace();
throw new RuntimeException(ex.getMessage());
}
}
}
static {
register();
}
private Collection createdListeners = new ArrayList();
private Collection modifiedListeners = new ArrayList();
private Collection beforeDeleteListeners = new ArrayList();
private Collection deletingListeners = new ArrayList();
private Collection deletedListeners = new ArrayList();
private InetDomainManager()
{
UserManager.getInstance().addBeforeDeleteListener(this);
UserManager.getInstance().addDeletingListener(this);
}
public InetDomain create(User editor)
throws ModelException
{
if(!allowedToCreate(editor)) throw new ModelSecurityException();
return new InetDomain();
}
public boolean allowedToCreate(User editor)
throws ModelException
{
return InetDomain.allowedToCreate(this, editor);
}
public InetDomain get(User editor, Long id)
throws ModelException
{
InetDomain domain;
try {
domain = (InetDomain)HibernateUtil.currentSession().load(
InetDomain.class, id);
}
catch(HibernateException ex)
{
throw new ModelException(ex);
}
if(!domain.viewableBy(editor))
throw new ModelSecurityException();
return domain;
}
public boolean nameExists(User editor, InetDomain domain, String name)
throws ModelException
{
try {
if(domain.getId() == null)
return ((Integer)HibernateUtil.currentSession().iterate(
"select count(*) from InetDomain d where name = ?",
name, Hibernate.STRING)
.next()).intValue() > 0;
else
return ((Integer)HibernateUtil.currentSession().iterate(
"select count(*) from InetDomain d where name = ? and d != ?",
new Object[] { name, domain },
new Type[] { Hibernate.STRING, Hibernate.entity(InetDomain.class) } )
.next()).intValue() > 0;
}
catch(HibernateException ex)
{
throw new ModelException(ex);
}
}
protected InetDomain findForName(String name)
throws ModelException
{
try {
List list = HibernateUtil.currentSession().find(
"select d from InetDomain d left join fetch d.owner where d.name=?",
name, Hibernate.STRING);
if(list.size() == 0)
return null;
else
return (InetDomain)list.get(0);
}
catch(HibernateException ex)
{
throw new ModelException(ex);
}
}
public void save(User editor, InetDomain domain)
throws ModelException
{
if(!domain.editableBy(editor))
throw new ModelSecurityException();
boolean isNew = domain.isNew();
//domain.setModUser(editor); // FIXME
try {
HibernateUtil.currentSession().saveOrUpdate(domain);
}
catch(HibernateException ex)
{
throw new ModelException(ex);
}
// inform listeners
if(isNew) {
for(Iterator i = createdListeners.iterator(); i.hasNext(); ) {
InetDomainCreatedListener listener = (InetDomainCreatedListener)i.next();
listener.inetDomainCreated(editor, domain);
}
}
else {
InetDomain oldDomain = domain.getOrigin();
if(oldDomain == null) oldDomain = domain;
for(Iterator i = modifiedListeners.iterator(); i.hasNext(); ) {
InetDomainModifiedListener listener = (InetDomainModifiedListener)i.next();
listener.inetDomainModified(editor, domain, oldDomain);
}
}
}
public void addCreatedListener(InetDomainCreatedListener listener)
{
createdListeners.add(listener);
}
public void removeCreatedListener(InetDomainCreatedListener listener)
{
createdListeners.remove(listener);
}
public void addModifiedListener(InetDomainModifiedListener listener)
{
modifiedListeners.add(listener);
}
public void removeModifiedListener(InetDomainModifiedListener listener)
{
modifiedListeners.remove(listener);
}
public void addBeforeDeleteListener(InetDomainBeforeDeleteListener listener)
{
beforeDeleteListeners.add(listener);
}
public void removeBeforeDeleteListener(InetDomainBeforeDeleteListener listener)
{
beforeDeleteListeners.remove(listener);
}
public void addDeletingListener(InetDomainDeletingListener listener)
{
deletingListeners.add(listener);
}
public void removeDeletingListener(InetDomainDeletingListener listener)
{
deletingListeners.remove(listener);
}
public void addDeletedListener(InetDomainDeletedListener listener)
{
deletedListeners.add(listener);
}
public void removeDeletedListener(InetDomainDeletedListener listener)
{
deletedListeners.remove(listener);
}
public Collection beforeDelete(User editor, InetDomain domain, Collection known)
throws ModelException
{
Collection cascade = new ArrayList();
for(Iterator i = beforeDeleteListeners.iterator(); i.hasNext(); ) {
InetDomainBeforeDeleteListener listener = (InetDomainBeforeDeleteListener)i.next();
Collection subcascade = listener.inetDomainBeforeDelete(editor, domain, known);
if(subcascade != null)
cascade.addAll(subcascade);
}
return cascade;
}
public void delete(User editor, InetDomain domain)
throws ModelException
{
// check rights
if(!domain.deleteableBy(editor))
throw new ModelSecurityException();
// inform deleting listeners
for(Iterator i = deletingListeners.iterator(); i.hasNext(); ) {
InetDomainDeletingListener listener = (InetDomainDeletingListener)i.next();
listener.inetDomainDeleting(editor, domain);
}
// backup copy
InetDomain oldDomain = new InetDomain(domain);
// delete it
try {
HibernateUtil.currentSession().delete(domain);
}
catch(HibernateException ex)
{
throw new ModelException(ex);
}
// inform deleted listeners
for(Iterator i = deletedListeners.iterator(); i.hasNext(); ) {
InetDomainDeletedListener listener = (InetDomainDeletedListener)i.next();
listener.inetDomainDeleted(editor, oldDomain);
}
}
public Collection listInetDomains(User editor)
throws ModelException
{
try {
if(editor.isSuperuser())
return HibernateUtil.currentSession().find(
"select d from InetDomain d left join fetch d.owner");
else
return HibernateUtil.currentSession().find(
"select d from InetDomain d where d.owner=?",
editor, Hibernate.entity(User.class));
}
catch(HibernateException ex)
{
throw new ModelException(ex);
}
}
public boolean areInetDomainsAvailable(User editor)
throws ModelException
{
try {
if(editor.isSuperuser())
return true;
else
return ((Integer)HibernateUtil.currentSession().iterate(
"select count(*) from InetDomain where owner=?",
editor, Hibernate.entity(User.class)).next()).intValue() > 0;
}
catch(HibernateException ex)
{
throw new ModelException(ex);
}
}
public Collection userBeforeDelete(User editor, User user, Collection known)
throws ModelException
{
Collection domains;
try {
domains = HibernateUtil.currentSession().find(
"select d from InetDomain d where d.owner = ?",
user, Hibernate.entity(User.class) );
}
catch(HibernateException ex)
{
throw new ModelException(ex);
}
Collection cascade = new ArrayList();
for(Iterator i = domains.iterator(); i.hasNext(); ) {
InetDomain d = (InetDomain)i.next();
if(d.viewableBy(editor)) {
if(d.deleteableBy(editor))
cascade.add(new CascadeDeleteElement(d, CascadeDeleteElement.DELETE,
this.beforeDelete(editor, d, known)));
else
cascade.add(new CascadeDeleteElement(d, CascadeDeleteElement.FORBIDDEN, null));
}
else {
cascade.add(new CascadeDeleteElement(InetDomain.createLimitedCopy(d),
CascadeDeleteElement.FORBIDDEN, null));
}
}
return cascade;
}
public void userDeleting(User editor, User user)
throws ModelException
{
Collection domains;
try {
domains = HibernateUtil.currentSession().find(
"select d from InetDomain d where d.owner = ?",
user, Hibernate.entity(User.class) );
}
catch(HibernateException ex)
{
throw new ModelException(ex);
}
for(Iterator i = domains.iterator(); i.hasNext(); ) {
delete(editor, (InetDomain)i.next());
}
}
public static final Comparator NAME_COMPARATOR = new NameComparator();
private static class NameComparator
implements Comparator
{
public int compare(Object o1, Object o2)
{
if(!(o1 instanceof InetDomain) || !(o2 instanceof InetDomain))
throw new ClassCastException("not a InetDomain");
InetDomain a1 = (InetDomain)o1;
InetDomain a2 = (InetDomain)o2;
if(a1 == null && a2 == null)
return 0;
else if(a1 == null && a2 != null)
return -1;
else if(a1 != null && a2 == null)
return 1;
else
return a1.getName().compareToIgnoreCase(a2.getName());
}
public boolean equals(Object obj)
{
return (obj instanceof NameComparator);
}
}
}