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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 924 | dev | 1 | package ak.hostadmiral.core.model; |
| 919 | dev | 2 | |
| 3 | import java.util.*; |
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| 4 | import net.sf.hibernate.*; |
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| 923 | dev | 5 | import net.sf.hibernate.type.Type; |
| 924 | dev | 6 | import ak.hostadmiral.util.HibernateUtil; |
| 7 | import ak.hostadmiral.util.ModelException; |
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| 8 | import ak.hostadmiral.util.ModelSecurityException; |
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| 919 | dev | 9 | |
| 10 | public class SystemUserManager |
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| 949 | dev | 11 | implements UserBeforeDeleteListener |
| 919 | dev | 12 | { |
| 949 | dev | 13 | private static SystemUserManager systemUserManager = null; |
| 919 | dev | 14 | private static boolean registered = false; |
| 949 | dev | 15 | |
| 16 | public static SystemUserManager getInstance() |
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| 17 | { |
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| 18 | return systemUserManager; |
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| 19 | } |
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| 20 | |||
| 919 | dev | 21 | protected static void register() |
| 22 | { |
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| 23 | synchronized(SystemUserManager.class) { |
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| 24 | if(registered) return; |
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| 25 | |||
| 26 | registered = true; |
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| 27 | try { |
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| 28 | HibernateUtil.getConfiguration().addResource( |
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| 950 | dev | 29 | "ak/hostadmiral/core/model/SystemUser.hbm.xml"); |
| 949 | dev | 30 | |
| 31 | systemUserManager = new SystemUserManager(); |
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| 919 | dev | 32 | } |
| 33 | catch(Exception ex) { |
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| 34 | ex.printStackTrace(); |
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| 35 | throw new RuntimeException(ex.getMessage()); |
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| 36 | } |
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| 37 | } |
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| 38 | } |
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| 39 | |||
| 40 | static { |
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| 41 | register(); |
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| 42 | } |
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| 43 | |||
| 949 | dev | 44 | private Collection beforeDeleteListeners = new ArrayList(); |
| 45 | |||
| 919 | dev | 46 | private SystemUserManager() |
| 47 | { |
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| 949 | dev | 48 | UserManager.getInstance().addBeforeDeleteListener(this); |
| 919 | dev | 49 | } |
| 50 | |||
| 51 | public SystemUser create(User editor) |
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| 52 | throws ModelException |
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| 53 | { |
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| 54 | if(!allowedToCreate(editor)) throw new ModelSecurityException(); |
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| 55 | |||
| 56 | return new SystemUser(); |
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| 57 | } |
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| 58 | |||
| 59 | public boolean allowedToCreate(User editor) |
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| 60 | throws ModelException |
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| 61 | { |
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| 921 | dev | 62 | return SystemUser.allowedToCreate(this, editor); |
| 919 | dev | 63 | } |
| 64 | |||
| 65 | public SystemUser get(User editor, Long id) |
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| 66 | throws ModelException |
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| 67 | { |
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| 68 | SystemUser user; |
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| 69 | |||
| 70 | try { |
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| 71 | user = (SystemUser)HibernateUtil.currentSession().load(SystemUser.class, id); |
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| 72 | } |
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| 73 | catch(HibernateException ex) |
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| 74 | { |
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| 75 | throw new ModelException(ex); |
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| 76 | } |
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| 77 | |||
| 78 | if(!user.viewableBy(editor)) |
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| 79 | throw new ModelSecurityException(); |
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| 80 | |||
| 81 | return user; |
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| 82 | } |
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| 83 | |||
| 923 | dev | 84 | public boolean nameExists(User editor, SystemUser user, String name) |
| 85 | throws ModelException |
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| 86 | { |
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| 87 | try { |
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| 88 | if(user.getId() == null) |
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| 89 | return ((Integer)HibernateUtil.currentSession().iterate( |
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| 90 | "select count(*) from SystemUser u where name = ?", |
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| 91 | name, Hibernate.STRING) |
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| 92 | .next()).intValue() > 0; |
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| 93 | else |
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| 94 | return ((Integer)HibernateUtil.currentSession().iterate( |
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| 95 | "select count(*) from SystemUser u where name = ? and u != ?", |
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| 96 | new Object[] { name, user }, |
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| 97 | new Type[] { Hibernate.STRING, Hibernate.entity(SystemUser.class) } ) |
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| 98 | .next()).intValue() > 0; |
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| 99 | } |
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| 100 | catch(HibernateException ex) |
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| 101 | { |
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| 102 | throw new ModelException(ex); |
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| 103 | } |
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| 104 | } |
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| 105 | |||
| 106 | public boolean uidExists(User editor, SystemUser user, Integer uid) |
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| 107 | throws ModelException |
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| 108 | { |
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| 109 | try { |
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| 110 | if(user.getId() == null) |
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| 111 | return ((Integer)HibernateUtil.currentSession().iterate( |
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| 112 | "select count(*) from SystemUser u where uid = ?", |
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| 113 | uid, Hibernate.INTEGER) |
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| 114 | .next()).intValue() > 0; |
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| 115 | else |
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| 116 | return ((Integer)HibernateUtil.currentSession().iterate( |
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| 117 | "select count(*) from SystemUser u where uid = ? and u != ?", |
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| 118 | new Object[] { uid, user }, |
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| 119 | new Type[] { Hibernate.INTEGER, Hibernate.entity(SystemUser.class) } ) |
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| 120 | .next()).intValue() > 0; |
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| 121 | } |
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| 122 | catch(HibernateException ex) |
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| 123 | { |
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| 124 | throw new ModelException(ex); |
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| 125 | } |
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| 126 | } |
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| 127 | |||
| 919 | dev | 128 | protected SystemUser findForName(String name) |
| 129 | throws ModelException |
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| 130 | { |
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| 131 | try { |
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| 132 | List list = HibernateUtil.currentSession().find( |
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| 133 | "from SystemUser where name=?", name, Hibernate.STRING); |
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| 134 | |||
| 135 | if(list.size() == 0) |
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| 136 | return null; |
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| 137 | else |
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| 138 | return (SystemUser)list.get(0); |
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| 139 | } |
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| 140 | catch(HibernateException ex) |
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| 141 | { |
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| 142 | throw new ModelException(ex); |
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| 143 | } |
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| 144 | } |
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| 145 | |||
| 146 | protected SystemUser findForUid(Integer uid) |
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| 147 | throws ModelException |
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| 148 | { |
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| 149 | try { |
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| 150 | List list = HibernateUtil.currentSession().find( |
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| 151 | "from SystemUser where uid=?", uid, Hibernate.INTEGER); |
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| 152 | |||
| 153 | if(list.size() == 0) |
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| 154 | return null; |
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| 155 | else |
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| 156 | return (SystemUser)list.get(0); |
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| 157 | } |
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| 158 | catch(HibernateException ex) |
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| 159 | { |
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| 160 | throw new ModelException(ex); |
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| 161 | } |
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| 162 | } |
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| 163 | |||
| 164 | public void save(User editor, SystemUser systemUser) |
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| 165 | throws ModelException |
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| 166 | { |
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| 167 | if(!systemUser.editableBy(editor)) |
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| 168 | throw new ModelSecurityException(); |
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| 169 | |||
| 170 | systemUser.setModUser(editor); |
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| 171 | |||
| 172 | try { |
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| 173 | HibernateUtil.currentSession().saveOrUpdate(systemUser); |
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| 174 | } |
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| 175 | catch(HibernateException ex) |
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| 176 | { |
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| 177 | throw new ModelException(ex); |
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| 178 | } |
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| 179 | } |
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| 180 | |||
| 949 | dev | 181 | public void addBeforeDeleteListener(SystemUserBeforeDeleteListener listener) |
| 182 | { |
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| 183 | beforeDeleteListeners.add(listener); |
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| 184 | } |
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| 185 | |||
| 186 | public void removeBeforeDeleteListener(SystemUserBeforeDeleteListener listener) |
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| 187 | { |
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| 188 | beforeDeleteListeners.remove(listener); |
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| 189 | } |
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| 190 | |||
| 191 | public Collection beforeDelete(User editor, SystemUser user, Collection known) |
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| 192 | throws ModelException |
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| 193 | { |
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| 194 | Collection cascade = new ArrayList(); |
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| 195 | |||
| 196 | for(Iterator i = beforeDeleteListeners.iterator(); i.hasNext(); ) { |
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| 197 | SystemUserBeforeDeleteListener listener = (SystemUserBeforeDeleteListener)i.next(); |
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| 198 | Collection subcascade = listener.systemUserBeforeDelete(editor, user, known); |
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| 199 | if(subcascade != null) |
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| 200 | cascade.addAll(subcascade); |
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| 201 | } |
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| 202 | |||
| 203 | return cascade; |
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| 204 | } |
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| 205 | |||
| 919 | dev | 206 | public void delete(User editor, SystemUser systemUser) |
| 207 | throws ModelException |
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| 208 | { |
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| 209 | if(!systemUser.deleteableBy(editor)) |
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| 210 | throw new ModelSecurityException(); |
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| 211 | |||
| 212 | try { |
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| 213 | HibernateUtil.currentSession().delete(systemUser); |
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| 214 | } |
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| 215 | catch(HibernateException ex) |
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| 216 | { |
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| 217 | throw new ModelException(ex); |
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| 218 | } |
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| 219 | } |
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| 220 | |||
| 221 | public Collection listSystemUsers(User editor) |
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| 222 | throws ModelException |
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| 223 | { |
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| 224 | try { |
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| 225 | if(editor.isSuperuser()) { |
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| 226 | return HibernateUtil.currentSession().find("from SystemUser"); |
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| 227 | } |
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| 228 | else { |
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| 229 | return HibernateUtil.currentSession().find( |
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| 230 | "select u from SystemUser u left join u.owner o where o is null or o=?", |
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| 231 | editor, Hibernate.entity(User.class)); |
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| 232 | } |
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| 233 | } |
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| 234 | catch(HibernateException ex) |
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| 235 | { |
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| 236 | throw new ModelException(ex); |
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| 237 | } |
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| 238 | } |
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| 239 | |||
| 240 | public boolean areSystemUsersAvailable(User editor) |
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| 241 | throws ModelException |
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| 242 | { |
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| 243 | try { |
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| 244 | if(editor.isSuperuser()) |
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| 245 | return true; |
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| 246 | else |
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| 247 | return ((Integer)HibernateUtil.currentSession().iterate( |
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| 248 | "select count(*) from SystemUser u left join u.owner o where o is null or o=?", |
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| 249 | editor, Hibernate.entity(User.class)).next()).intValue() > 0; |
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| 250 | } |
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| 251 | catch(HibernateException ex) |
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| 252 | { |
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| 253 | throw new ModelException(ex); |
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| 254 | } |
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| 255 | } |
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| 256 | |||
| 949 | dev | 257 | public Collection userBeforeDelete(User editor, User user, Collection known) |
| 258 | throws ModelException |
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| 919 | dev | 259 | { |
| 949 | dev | 260 | Collection systemUsers; |
| 919 | dev | 261 | |
| 949 | dev | 262 | try { |
| 263 | systemUsers = HibernateUtil.currentSession().find( |
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| 264 | "from SystemUser where owner = ?", |
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| 265 | user, Hibernate.entity(User.class) ); |
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| 266 | } |
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| 267 | catch(HibernateException ex) |
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| 268 | { |
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| 269 | throw new ModelException(ex); |
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| 270 | } |
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| 271 | |||
| 272 | Collection cascade = new ArrayList(); |
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| 273 | for(Iterator i = systemUsers.iterator(); i.hasNext(); ) { |
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| 274 | SystemUser u = (SystemUser)i.next(); |
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| 275 | if(u.viewableBy(editor)) { |
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| 276 | if(u.deleteableBy(editor)) |
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| 277 | cascade.add(new CascadeDeleteElement(u, CascadeDeleteElement.DELETE, |
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| 278 | this.beforeDelete(editor, u, known))); |
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| 279 | else |
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| 280 | cascade.add(new CascadeDeleteElement(u, CascadeDeleteElement.FORBIDDEN, null)); |
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| 281 | } |
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| 282 | else { |
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| 283 | cascade.add(new CascadeDeleteElement(SystemUser.createLimitedCopy(u), |
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| 284 | CascadeDeleteElement.FORBIDDEN, null)); |
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| 285 | } |
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| 286 | } |
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| 287 | |||
| 288 | return cascade; |
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| 919 | dev | 289 | } |
| 290 | |||
| 291 | public static final Comparator UID_COMPARATOR = new UidComparator(); |
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| 292 | public static final Comparator NAME_COMPARATOR = new NameComparator(); |
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| 293 | |||
| 294 | private static class UidComparator |
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| 295 | implements Comparator |
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| 296 | { |
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| 297 | public int compare(Object o1, Object o2) |
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| 298 | { |
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| 299 | if(!(o1 instanceof SystemUser) || !(o2 instanceof SystemUser)) |
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| 300 | throw new ClassCastException("not a SystemUser"); |
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| 301 | |||
| 302 | SystemUser a1 = (SystemUser)o1; |
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| 303 | SystemUser a2 = (SystemUser)o2; |
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| 304 | |||
| 305 | if(a1 == null && a2 == null) |
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| 306 | return 0; |
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| 307 | else if(a1 == null && a2 != null) |
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| 308 | return -1; |
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| 309 | else if(a1 != null && a2 == null) |
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| 310 | return 1; |
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| 311 | else |
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| 312 | return a1.getUid().compareTo(a2.getUid()); |
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| 313 | } |
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| 314 | |||
| 315 | public boolean equals(Object obj) |
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| 316 | { |
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| 317 | return (obj instanceof UidComparator); |
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| 318 | } |
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| 319 | } |
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| 320 | |||
| 321 | private static class NameComparator |
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| 322 | implements Comparator |
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| 323 | { |
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| 324 | public int compare(Object o1, Object o2) |
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| 325 | { |
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| 326 | if(!(o1 instanceof SystemUser) || !(o2 instanceof SystemUser)) |
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| 327 | throw new ClassCastException("not a SystemUser"); |
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| 328 | |||
| 329 | SystemUser a1 = (SystemUser)o1; |
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| 330 | SystemUser a2 = (SystemUser)o2; |
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| 331 | |||
| 332 | if(a1 == null && a2 == null) |
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| 333 | return 0; |
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| 334 | else if(a1 == null && a2 != null) |
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| 335 | return -1; |
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| 336 | else if(a1 != null && a2 == null) |
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| 337 | return 1; |
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| 338 | else |
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| 339 | return a1.getName().compareToIgnoreCase(a2.getName()); |
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| 340 | } |
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| 341 | |||
| 342 | public boolean equals(Object obj) |
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| 343 | { |
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| 344 | return (obj instanceof NameComparator); |
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| 345 | } |
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| 346 | } |
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| 347 | } |