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org.apache.commons.jelly.tags.ant.SetPropertyTag |
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1 | /* |
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2 | * Copyright 2002,2004 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.jelly.tags.ant; |
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18 | ||
19 | import org.apache.commons.jelly.JellyTagException; |
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20 | import org.apache.commons.jelly.MissingAttributeException; |
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21 | import org.apache.commons.jelly.TagSupport; |
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22 | import org.apache.commons.jelly.XMLOutput; |
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23 | ||
24 | import org.apache.commons.logging.Log; |
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25 | import org.apache.commons.logging.LogFactory; |
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26 | ||
27 | /** |
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28 | * Tag which sets an attribute on the parent Ant Task if the given value is not null. |
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29 | * This can be useful when setting parameters on Ant tasks, only if they have been specified |
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30 | * via some well defined property, otherwise allowing the inbuilt default to be used. |
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31 | * |
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32 | * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
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33 | */ |
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34 | 2 | public class SetPropertyTag extends TagSupport { |
35 | ||
36 | /** The Log to which logging calls will be made. */ |
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37 | 1 | private static final Log log = LogFactory.getLog(SetPropertyTag.class); |
38 | ||
39 | private String name; |
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40 | private Object value; |
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41 | private Object defaultValue; |
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42 | ||
43 | 4 | public SetPropertyTag() { |
44 | 4 | } |
45 | ||
46 | // Tag interface |
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47 | //------------------------------------------------------------------------- |
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48 | public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException { |
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49 | 4 | if (name == null) { |
50 | 0 | throw new MissingAttributeException("name"); |
51 | } |
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52 | 4 | TaskSource tag = (TaskSource) findAncestorWithClass( TaskSource.class ); |
53 | 4 | if ( tag == null ) { |
54 | 0 | throw new JellyTagException( "This tag must be nested within an Ant task tag" ); |
55 | } |
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56 | 4 | Object value = getValue(); |
57 | 4 | if (value == null) { |
58 | 1 | value = getDefault(); |
59 | } |
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60 | 4 | if (value != null) { |
61 | 4 | tag.setTaskProperty(name, value); |
62 | } |
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63 | 4 | } |
64 | ||
65 | ||
66 | // Properties |
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67 | //------------------------------------------------------------------------- |
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68 | ||
69 | /** |
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70 | * Returns the name. |
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71 | * @return String |
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72 | */ |
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73 | public String getName() { |
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74 | 0 | return name; |
75 | } |
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76 | ||
77 | /** |
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78 | * Returns the value. |
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79 | * @return Object |
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80 | */ |
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81 | public Object getValue() { |
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82 | 4 | return value; |
83 | } |
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84 | ||
85 | /** |
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86 | * Sets the name of the Ant task property to set. |
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87 | * @param name The name of the Ant task property to set |
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88 | */ |
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89 | public void setName(String name) { |
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90 | 4 | this.name = name; |
91 | 4 | } |
92 | ||
93 | /** |
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94 | * Sets the value of the Ant task property to set. |
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95 | * @param value The value of the Ant task property to set |
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96 | */ |
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97 | public void setValue(Object value) { |
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98 | 4 | this.value = value; |
99 | 4 | } |
100 | ||
101 | /** |
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102 | * Returns the defaultValue. |
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103 | * @return Object |
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104 | */ |
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105 | public Object getDefault() { |
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106 | 1 | return defaultValue; |
107 | } |
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108 | ||
109 | /** |
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110 | * Sets the default value to be used if the specified value is empty. |
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111 | */ |
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112 | public void setDefault(Object defaultValue) { |
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113 | 1 | this.defaultValue = defaultValue; |
114 | 1 | } |
115 | ||
116 | } |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |