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org.apache.jetspeed.om.preference.impl.FragmentPortletPreferenceSet	0%	0%

1		/*
2		* Licensed to the Apache Software Foundation (ASF) under one or more
3		* contributor license agreements. See the NOTICE file distributed with
4		* this work for additional information regarding copyright ownership.
5		* The ASF licenses this file to You under the Apache License, Version 2.0
6		* (the "License"); you may not use this file except in compliance with
7		* the License. You may obtain a copy of the License at
8		*
9		* http://www.apache.org/licenses/LICENSE-2.0
10		*
11		* Unless required by applicable law or agreed to in writing, software
12		* distributed under the License is distributed on an "AS IS" BASIS,
13		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14		* See the License for the specific language governing permissions and
15		* limitations under the License.
16		*/
17		package org.apache.jetspeed.om.preference.impl;
18
19		import java.util.HashMap;
20		import java.util.Iterator;
21		import java.util.List;
22		import java.util.Map;
23		import java.util.Set;
24
25		import javax.portlet.PreferencesValidator;
26
27		import org.apache.jetspeed.om.common.preference.PreferenceSetComposite;
28		import org.apache.jetspeed.om.page.Fragment;
29		import org.apache.pluto.om.common.Preference;
30
31		/**
32		* This is a per-request wrapper for a PreferenceSet that allows
33		* the use of fragment-specified Preferences within a portlet instance
34		* in a page.
35		*
36		* @author <href a="mailto:weaver@apache.org">Scott T. Weaver</a>
37		*
38		*/
39		public class FragmentPortletPreferenceSet implements PreferenceSetComposite
40		{
41		private final PreferenceSetComposite preferenceSet;
42		private final Map prefs;
43
44		public FragmentPortletPreferenceSet(PreferenceSetComposite preferenceSet, Fragment fragment)
45	0	{
46		// save mutable preference set and read only fragment
47	0	this.preferenceSet = preferenceSet;
48		// construct merged portlet definition prefs map;
49		// note that user specific preferences accessed via
50		// the portlet entity should override these defaults
51	0	int prefsSize = preferenceSet.size() + 1;
52	0	if (fragment != null && fragment.getPreferences() != class="keyword">null)
53		{
54	0	prefsSize += fragment.getPreferences().size();
55		}
56	0	this.prefs = new HashMap(prefsSize);
57
58		// add global portlet definition defaults to prefs
59	0	Iterator iterator = preferenceSet.iterator();
60	0	while(iterator.hasNext())
61		{
62	0	Preference pref = (Preference) iterator.next();
63	0	prefs.put(pref.getName(), pref);
64	0	}
65
66		// add/override global portlet definition defaults
67		// using more specific fragment preferences
68	0	if (fragment != null && fragment.getPreferences() != class="keyword">null)
69		{
70	0	Iterator itr = fragment.getPreferences().iterator();
71	0	while(itr.hasNext())
72		{
73	0	Preference pref = (Preference) itr.next();
74	0	prefs.put(pref.getName(), pref);
75	0	}
76		}
77	0	}
78
79		public Preference add(String arg0, List arg1)
80		{
81	0	Preference pref = preferenceSet.add(arg0, arg1);
82	0	prefs.put(arg0, pref);
83	0	return pref;
84		}
85
86		public Preference get(String name)
87		{
88	0	return (Preference) prefs.get(name);
89		}
90
91		public Set getNames()
92		{
93	0	return prefs.keySet();
94		}
95
96		public PreferencesValidator getPreferencesValidator()
97		{
98	0	return preferenceSet.getPreferencesValidator();
99		}
100
101		public Iterator iterator()
102		{
103	0	return prefs.values().iterator();
104		}
105
106		public void remove(Preference pref)
107		{
108	0	prefs.remove(pref.getName());
109	0	preferenceSet.remove(pref);
110	0	}
111
112		public Preference remove(String name)
113		{
114	0	Preference pref = (Preference) prefs.remove(name);
115	0	preferenceSet.remove(name);
116	0	return pref;
117		}
118
119		public int size()
120		{
121	0	return prefs.size();
122		}
123		}

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