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1   /*
2    * Copyright 2009 University Corporation for Advanced Internet Development, Inc.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.opensaml.ws.message.handler;
18  
19  import org.opensaml.ws.message.MessageContext;
20  
21  /**
22   * A resolver which uses the message context information to resolve and return instances of {@link HandlerChain}.
23   */
24  public interface HandlerChainResolver {
25      
26      /**
27       * Resolve handler chain instances based on the message context.
28       * 
29       * @param messageContext the message context to process
30       * @return resolved handler chains
31       * @throws HandlerException thrown if there is an error resolving the handler chain
32       */
33      Iterable<HandlerChain> resolve(MessageContext messageContext) throws HandlerException;
34  
35  }