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| org.apache.jetspeed.security.impl.GeneralizationHierarchyResolver |
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| 1 | /* |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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| 3 | * contributor license agreements. See the NOTICE file distributed with |
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| 4 | * this work for additional information regarding copyright ownership. |
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| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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| 6 | * (the "License"); you may not use this file except in compliance with |
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| 7 | * the License. You may obtain a copy of the License at |
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| 8 | * |
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| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 10 | * |
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| 11 | * Unless required by applicable law or agreed to in writing, software |
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| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 14 | * See the License for the specific language governing permissions and |
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| 15 | * limitations under the License. |
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| 16 | */ |
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| 17 | package org.apache.jetspeed.security.impl; |
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| 18 | ||
| 19 | import java.util.ArrayList; |
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| 20 | import java.util.List; |
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| 21 | import java.util.prefs.Preferences; |
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| 22 | ||
| 23 | import org.apache.jetspeed.security.HierarchyResolver; |
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| 24 | import org.apache.jetspeed.util.ArgUtil; |
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| 25 | ||
| 26 | /** |
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| 27 | * <p> |
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| 28 | * Implementation for "is a" hierarchy. For Example: if a user has the role |
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| 29 | * [roleA.roleB.roleC] than |
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| 30 | * </p> |
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| 31 | * <code>user.getSubject().getPrincipals()</code> returns: |
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| 32 | * <ul> |
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| 33 | * <li>/role/roleA</li> |
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| 34 | * <li>/role/roleA/roleB</li> |
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| 35 | * <li>/role/roleA/roleB/roleC</li> |
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| 36 | * </ul> |
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| 37 | * </p> |
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| 38 | * |
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| 39 | * @author <a href="mailto:Artem.Grinshtein@t-systems.com">Artem Grinshtein </a> |
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| 40 | * @version $Id: GeneralizationHierarchyResolver.java,v 1.2 2004/09/18 19:33:58 |
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| 41 | * dlestrat Exp $ |
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| 42 | */ |
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| 43 | 0 | public class GeneralizationHierarchyResolver extends BaseHierarchyResolver implements HierarchyResolver |
| 44 | { |
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| 45 | ||
| 46 | /** |
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| 47 | * @see org.apache.jetspeed.security.HierarchyResolver#resolve(Preferences) |
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| 48 | */ |
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| 49 | public String[] resolve(Preferences prefs) |
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| 50 | { |
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| 51 | 0 | ArgUtil.notNull(new Object[] { prefs }, class="keyword">new String[] { "preferences" }, "resolve(java.util.prefs.Preferences)"); |
| 52 | ||
| 53 | 0 | List list = new ArrayList(); |
| 54 | 0 | Preferences preferences = prefs; |
| 55 | 0 | while ((preferences.parent() != null) && (preferences.parent().parent() != class="keyword">null)) |
| 56 | { |
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| 57 | 0 | list.add(preferences.absolutePath()); |
| 58 | 0 | preferences = preferences.parent(); |
| 59 | } |
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| 60 | 0 | return (String[]) list.toArray(new String[0]); |
| 61 | } |
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| 62 | ||
| 63 | } |
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