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1   /*
2    * Copyright [2007] [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.security.provider;
18  
19  import org.opensaml.ws.message.MessageContext;
20  import org.opensaml.ws.security.SecurityPolicyException;
21  import org.opensaml.ws.security.SecurityPolicyRule;
22  import org.opensaml.xml.util.DatatypeHelper;
23  import org.slf4j.Logger;
24  import org.slf4j.LoggerFactory;
25  
26  /**
27   * Security policy rule implementation that which requires that an inbound message context issuer has been set by a
28   * previous rule. Should typically run at the end of the security policy rule chain.
29   */
30  public class MandatoryIssuerRule implements SecurityPolicyRule {
31  
32      /** Class logger. */
33      private final Logger log = LoggerFactory.getLogger(MandatoryIssuerRule.class);
34  
35      /** {@inheritDoc} */
36      public void evaluate(MessageContext messageContext) throws SecurityPolicyException {
37  
38          if (DatatypeHelper.isEmpty(messageContext.getInboundMessageIssuer())) {
39              log.error("Mandatory inbound message context issuer was not present");
40              throw new SecurityPolicyException("Mandatory inbound message context issuer not present");
41          }
42  
43      }
44  
45  }