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AclServiceImpl xref

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2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
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6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   * http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.chemistry.opencmis.client.bindings.spi.atompub;
20  
21  import static org.apache.chemistry.opencmis.commons.impl.Converter.convert;
22  
23  import org.apache.chemistry.opencmis.client.bindings.spi.BindingSession;
24  import org.apache.chemistry.opencmis.client.bindings.spi.atompub.objects.AtomAcl;
25  import org.apache.chemistry.opencmis.client.bindings.spi.http.HttpUtils;
26  import org.apache.chemistry.opencmis.commons.data.Acl;
27  import org.apache.chemistry.opencmis.commons.data.ExtensionsData;
28  import org.apache.chemistry.opencmis.commons.enums.AclPropagation;
29  import org.apache.chemistry.opencmis.commons.impl.Constants;
30  import org.apache.chemistry.opencmis.commons.impl.UrlBuilder;
31  import org.apache.chemistry.opencmis.commons.spi.AclService;
32  
33  /**
34   * ACL Service AtomPub client.
35   */
36  public class AclServiceImpl extends AbstractAtomPubService implements AclService {
37      
38      /**
39       * Constructor.
40       */
41      public AclServiceImpl(BindingSession session) {
42          setSession(session);
43      }
44  
45      public Acl applyAcl(String repositoryId, String objectId, Acl addAces, Acl removeAces,
46              AclPropagation aclPropagation, ExtensionsData extension) {
47  
48          // fetch the current ACL
49          Acl originalAces = getAcl(repositoryId, objectId, false, null);
50  
51          // if no changes required, just return the ACL
52          if (!isAclMergeRequired(addAces, removeAces)) {
53              return originalAces;
54          }
55  
56          // merge ACLs
57          Acl newACL = mergeAcls(originalAces, addAces, removeAces);
58  
59          // update ACL
60          AtomAcl acl = updateAcl(repositoryId, objectId, newACL, aclPropagation);
61          Acl result = convert(acl.getACL(), null);
62  
63          return result;
64      }
65  
66      public Acl getAcl(String repositoryId, String objectId,
67              Boolean onlyBasicPermissions, ExtensionsData extension) {
68  
69          // find the link
70          String link = loadLink(repositoryId, objectId, Constants.REL_ACL, Constants.MEDIATYPE_ACL);
71  
72          if (link == null) {
73              throwLinkException(repositoryId, objectId, Constants.REL_ACL, Constants.MEDIATYPE_ACL);
74          }
75  
76          UrlBuilder url = new UrlBuilder(link);
77          url.addParameter(Constants.PARAM_ONLY_BASIC_PERMISSIONS, onlyBasicPermissions);
78  
79          // read and parse
80          HttpUtils.Response resp = read(url);
81          AtomAcl acl = parse(resp.getStream(), AtomAcl.class);
82  
83          return convert(acl.getACL(), null);
84      }
85  
86  }