1 /*
   2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.xml.internal.ws.api.policy;
  27 
  28 import com.sun.xml.internal.ws.util.ServiceFinder;
  29 import com.sun.xml.internal.ws.policy.jaxws.DefaultPolicyResolver;
  30 
  31 /**
  32  * PolicyResolverFactory provides a way to override Effective Policy Resolution for a Service or Client.
  33  * JAX-WS provides DEFAULT_POLICY_RESOLVER implementation that
  34  *      on server-side validates that Policy has single alternative in the scope of each subject
  35  *      on client-side updates with the effective policy by doing alternative selection.
  36  *
  37  * Extensions can override this to consult other forms of configuration to give the effective PolicyMap.
  38  *
  39  * @author Rama Pulavarthi
  40  */
  41 public abstract class PolicyResolverFactory {
  42 
  43     public abstract PolicyResolver doCreate();
  44 
  45     public static PolicyResolver create(){
  46         for (PolicyResolverFactory factory : ServiceFinder.find(PolicyResolverFactory.class)) {
  47             PolicyResolver policyResolver = factory.doCreate();
  48             if (policyResolver != null) {
  49                 return policyResolver;
  50             }
  51         }
  52          // return default policy resolver.
  53         return DEFAULT_POLICY_RESOLVER;
  54     }
  55 
  56     /**
  57      * JAX-WS provided DEFAULT_POLICY_RESOLVER implementation that
  58      *      on server-side validates that Policy has single alternative in the scope of each subject
  59      *      on client-side updates with the effective policy by doing alternative selection.
  60      */
  61     public static final PolicyResolver DEFAULT_POLICY_RESOLVER =  new DefaultPolicyResolver();
  62 
  63 
  64 }