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org.apache.commons.configuration.web.ServletConfiguration |
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1 | /* |
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2 | * Copyright 2004 The Apache Software Foundation. |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License") |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | ||
17 | package org.apache.commons.configuration.web; |
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18 | ||
19 | import java.util.Iterator; |
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20 | import java.util.List; |
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21 | import javax.servlet.Servlet; |
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22 | import javax.servlet.ServletConfig; |
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23 | ||
24 | import org.apache.commons.collections.iterators.EnumerationIterator; |
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25 | import org.apache.commons.configuration.AbstractConfiguration; |
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26 | import org.apache.commons.configuration.PropertyConverter; |
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27 | ||
28 | /** |
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29 | * A configuration wrapper around a {@link ServletConfig}. This configuration |
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30 | * is read only, adding or removing a property will throw an |
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31 | * UnsupportedOperationException. |
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32 | * |
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33 | * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a> |
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34 | * @version $Revision: 155408 $, $Date: 2005-02-26 13:56:39 +0100 (Sa, 26 Feb 2005) $ |
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35 | * @since 1.1 |
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36 | */ |
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37 | public class ServletConfiguration extends AbstractConfiguration |
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38 | { |
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39 | protected ServletConfig config; |
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40 | ||
41 | /** |
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42 | * Create a ServletConfiguration using the initialization parameter of |
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43 | * the specified servlet. |
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44 | * |
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45 | * @param servlet the servlet |
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46 | */ |
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47 | 54 | public ServletConfiguration(Servlet servlet) |
48 | 54 | { |
49 | 98 | this(servlet.getServletConfig()); |
50 | 98 | } |
51 | ||
52 | /** |
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53 | * Create a ServletConfiguration using the servlet initialization parameters. |
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54 | * |
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55 | * @param config the servlet configuration |
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56 | 72 | */ |
57 | 72 | public ServletConfiguration(ServletConfig config) |
58 | 184 | { |
59 | 112 | this.config = config; |
60 | 112 | } |
61 | ||
62 | 45 | public Object getProperty(String key) |
63 | { |
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64 | 98 | Object value = config.getInitParameter(key); |
65 | 98 | List list = PropertyConverter.split((String) value, getDelimiter()); |
66 | ||
67 | 98 | return list.size() > 1 ? list : value; |
68 | } |
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69 | ||
70 | /** |
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71 | * <p><strong>This operation is not supported and will throw an |
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72 | * UnsupportedOperationException.</strong></p> |
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73 | 9 | * |
74 | * @throws UnsupportedOperationException |
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75 | */ |
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76 | protected void addPropertyDirect(String key, Object obj) |
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77 | { |
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78 | 32 | throw new UnsupportedOperationException("Read only configuration"); |
79 | } |
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80 | ||
81 | public boolean isEmpty() |
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82 | { |
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83 | 46 | return !getKeys().hasNext(); |
84 | } |
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85 | ||
86 | public boolean containsKey(String key) |
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87 | { |
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88 | 28 | return getProperty(key) != null; |
89 | } |
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90 | ||
91 | /** |
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92 | * <p><strong>This operation is not supported and will throw an |
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93 | * UnsupportedOperationException.</strong></p> |
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94 | 9 | * |
95 | * @throws UnsupportedOperationException |
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96 | */ |
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97 | public void clearProperty(String key) |
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98 | { |
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99 | 50 | throw new UnsupportedOperationException("Read only configuration"); |
100 | } |
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101 | ||
102 | public Iterator getKeys() |
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103 | { |
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104 | 42 | return new EnumerationIterator(config.getInitParameterNames()); |
105 | } |
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106 | ||
107 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |