libjava/classpath/gnu/CORBA/Poa/policySets.java

   1 /* policySets.java --
   2    Copyright (C) 2005 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39 package gnu.CORBA.Poa;
  40
  41 import org.omg.CORBA.Policy;
  42 import org.omg.PortableServer.IdAssignmentPolicyValue;
  43 import org.omg.PortableServer.IdUniquenessPolicyValue;
  44 import org.omg.PortableServer.ImplicitActivationPolicyValue;
  45 import org.omg.PortableServer.LifespanPolicyValue;
  46 import org.omg.PortableServer.RequestProcessingPolicyValue;
  47 import org.omg.PortableServer.ServantRetentionPolicyValue;
  48 import org.omg.PortableServer.ThreadPolicyValue;
  49
  50 import java.util.ArrayList;
  51
  52 /**
  53  * Contains the frequently uset POA policy sets. The policy
  54  * arrays are package private for security reasons, the cloned
  55  * copies are returned.
  56  *
  57  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  58  */
  59 public class policySets
  60 {
  61   /**
  62    * The default policy set, as defined in OMG specs. This is also
  63    * the policy set for the root POA.
  64    */
  65   private static final vPolicy[] rootPOASet =
  66     new vPolicy[]
  67     {
  68       new gnuThreadPolicy(ThreadPolicyValue.ORB_CTRL_MODEL),
  69       new gnuLifespanPolicy(LifespanPolicyValue.TRANSIENT),
  70       new gnuIdUniquenessPolicy(IdUniquenessPolicyValue.UNIQUE_ID),
  71       new gnuIdAssignmentPolicy(IdAssignmentPolicyValue.SYSTEM_ID),
  72       new gnuServantRetentionPolicy(ServantRetentionPolicyValue.RETAIN),
  73       new gnuRequestProcessingPolicy(RequestProcessingPolicyValue.USE_ACTIVE_OBJECT_MAP_ONLY),
  74       new gnuImplicitActivationPolicy(ImplicitActivationPolicyValue.IMPLICIT_ACTIVATION)
  75     };
  76
  77   /**
  78    * Return the policy set, applicable for the root POA, as defined
  79    * in OMG specs.
  80    */
  81   public static Policy[] rootPoa()
  82   {
  83     Policy[] p = new Policy[ rootPOASet.length ];
  84     System.arraycopy(rootPOASet, 0, p, 0, p.length);
  85     return p;
  86   }
  87
  88   /**
  89    * Convert the potentially incomplete policy array into array, containing
  90    * the complete policy set.
  91    *
  92    * @param policies the policy list, may be incomplete (even zero size).
  93    *
  94    * @return the complete policy array. The missing, but needed policies
  95    * are added with they default values.
  96    */
  97   public static Policy[] withDefault(Policy[] policies)
  98   {
  99     ArrayList current = new ArrayList(rootPOASet.length);
 100     Policy p_default;
 101     boolean specified;
 102
 103     for (int i = 0; i < rootPOASet.length; i++)
 104       {
 105         p_default = rootPOASet [ i ];
 106         specified = false;
 107         ForThis:
 108         for (int j = 0; j < policies.length; j++)
 109           {
 110             if (policies [ j ].policy_type() == p_default.policy_type())
 111               {
 112                 specified = true;
 113                 current.add(policies [ j ]);
 114                 break ForThis;
 115               }
 116           }
 117         if (!specified)
 118           current.add(p_default.copy());
 119       }
 120
 121     Policy[] complete = new Policy[ current.size() ];
 122     for (int i = 0; i < complete.length; i++)
 123       {
 124         complete [ i ] = (Policy) current.get(i);
 125       }
 126     return complete;
 127   }
 128 }