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1   /*
2    * Copyright 2001-2004 The Apache Software Foundation.
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  package org.apache.juddi.function;
17  
18  import org.apache.juddi.datastore.DataStore;
19  import org.apache.juddi.datatype.publisher.Publisher;
20  import org.apache.juddi.datatype.request.AuthInfo;
21  import org.apache.juddi.error.AuthTokenExpiredException;
22  import org.apache.juddi.error.AuthTokenRequiredException;
23  import org.apache.juddi.error.RegistryException;
24  import org.apache.juddi.registry.RegistryEngine;
25   
26  /***
27   * @author Steve Viens (sviens@apache.org)
28   */
29  public abstract class AbstractFunction implements IFunction
30  {
31    // protected reference to parent Registry instance
32    protected RegistryEngine registry = null;
33  
34    /***
35     * @param registry
36     */
37    protected AbstractFunction(RegistryEngine registry)
38    {
39      this.registry = registry;
40    }
41    
42    /***
43     * @return RegistryEngine
44     */
45    public RegistryEngine getRegistry()
46    {
47      return this.registry;
48    }
49    
50    /***
51     * @param registry
52     */
53    public void setRegistry(RegistryEngine registry)
54    {
55      this.registry = registry;
56    }
57  
58    /***
59     * Verify the authentication parameters.
60     */
61    protected Publisher getPublisher(AuthInfo authInfo,DataStore dataStore)
62      throws RegistryException
63    {
64      Publisher publisher = null;
65  
66      if ((authInfo == null) || (authInfo.getValue() == null))
67        throw new AuthTokenRequiredException("authToken: null");
68  
69      String authToken = authInfo.getValue();
70      if (authToken.trim().length() == 0)
71        throw new AuthTokenRequiredException("authToken: "+authToken);
72  
73      publisher = dataStore.getAuthTokenPublisher(authToken);
74      if (publisher == null)
75        throw new AuthTokenRequiredException("authToken: "+authToken);
76  
77      if (dataStore.isAuthTokenExpired(authToken))
78        throw new AuthTokenExpiredException("authToken: "+authToken);
79  
80      // Token is valid so 'touch' so that it's
81      // internal 'expiration clock' is reset.
82      dataStore.touchAuthToken(authToken);
83  
84      return publisher;
85    }
86  }