| 1 | <html>
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| 2 | <head>
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| 3 | <meta http-equiv="Content-Language" content="en-us">
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| 4 | <title>Selectors in Ant</title>
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| 5 | <link rel="stylesheet" type="text/css" href="../stylesheets/antmanual.css">
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| 6 | </head>
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| 7 |
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| 8 | <body>
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| 9 | <h2>Selectors</h2>
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| 10 |
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| 11 | <p>Selectors are a mechanism whereby the files that make up a fileset
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| 12 | can be selected based on criteria other than filename as provided
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| 13 | by the <code><include></code> and <code><exclude></code>
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| 14 | tags.</p>
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| 15 |
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| 16 | <h3>How to use a Selector</h3>
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| 17 |
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| 18 | <p>A selector is an element of FileSet, and appears within it. It can
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| 19 | also be defined outside of any target by using the <selector> tag
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| 20 | and then using it as a reference.
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| 21 | </p>
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| 22 |
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| 23 | <p>Different selectors have different attributes. Some selectors can
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| 24 | contain other selectors, and these are called
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| 25 | <a href="#selectcontainers"><code>Selector Containers</code></a>.
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| 26 | There is also a category of selectors that allow
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| 27 | user-defined extensions, called
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| 28 | <a href="#customselect"><code>Custom Selectors</code></a>.
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| 29 | The ones built in to Ant are called
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| 30 | <a href="#coreselect"><code>Core Selectors</code></a>.
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| 31 | </p>
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| 32 |
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| 33 | <a name="coreselect"></a>
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| 34 | <h3>Core Selectors</h3>
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| 35 |
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| 36 | <p>Core selectors are the ones that come standard
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| 37 | with Ant. They can be used within a fileset and can be contained
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| 38 | within Selector Containers.</p>
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| 39 |
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| 40 | <p>The core selectors are:</p>
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| 41 |
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| 42 | <ul>
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| 43 | <li><a href="#containsselect"><contains></a> - Select
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| 44 | files that contain a particular text string</li>
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| 45 | <li><a href="#dateselect"><date></a> - Select files
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| 46 | that have been modified either before or after a particular date
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| 47 | and time</li>
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| 48 | <li><a href="#dependselect"><depend></a> - Select files
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| 49 | that have been modified more recently than equivalent files
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| 50 | elsewhere</li>
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| 51 | <li><a href="#depthselect"><depth></a> - Select files
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| 52 | that appear so many directories down in a directory tree</li>
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| 53 | <li><a href="#differentselect"><different></a> - Select files
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| 54 | that are different from those elsewhere</li>
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| 55 | <li><a href="#filenameselect"><filename></a> - Select
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| 56 | files whose name matches a particular pattern. Equivalent to
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| 57 | the include and exclude elements of a patternset.</li>
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| 58 | <li><a href="#presentselect"><present></a> - Select
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| 59 | files that either do or do not exist in some other location</li>
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| 60 | <li><a href="#regexpselect"><containsregexp></a> - Select
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| 61 | files that match a regular expression</li>
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| 62 | <li><a href="#sizeselect"><size></a> - Select files
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| 63 | that are larger or smaller than a particular number of bytes.</li>
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| 64 | <li><a href="#typeselect"><type></a> - Select files
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| 65 | that are either regular files or directories.</li>
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| 66 | <li><a href="#modified"><modified></a> - Select files if
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| 67 | the return value of the configured algorithm is different from that
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| 68 | stored in a cache.</li>
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| 69 | </ul>
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| 70 |
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| 71 | <a name="containsselect"></a>
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| 72 | <h4>Contains Selector</h4>
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| 73 |
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| 74 | <p>The <code><contains></code> tag in a FileSet limits
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| 75 | the files defined by that fileset to only those which contain the
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| 76 | string specified by the <code>text</code> attribute.
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| 77 | .</p>
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| 78 |
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| 79 | <table border="1" cellpadding="2" cellspacing="0">
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| 80 | <tr>
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| 81 | <td valign="top"><b>Attribute</b></td>
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| 82 | <td valign="top"><b>Description</b></td>
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| 83 | <td align="center" valign="top"><b>Required</b></td>
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| 84 | </tr>
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| 85 | <tr>
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| 86 | <td valign="top">text</td>
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| 87 | <td valign="top">Specifies the text that every file must contain
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| 88 | </td>
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| 89 | <td valign="top" align="center">Yes</td>
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| 90 | </tr>
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| 91 | <tr>
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| 92 | <td valign="top">casesensitive</td>
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| 93 | <td valign="top">Whether to pay attention to case when looking
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| 94 | for the string in the <code>text</code> attribute. Default is
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| 95 | true.
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| 96 | </td>
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| 97 | <td valign="top" align="center">No</td>
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| 98 | </tr>
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| 99 | <tr>
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| 100 | <td valign="top">ignorewhitespace</td>
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| 101 | <td valign="top">Whether to eliminate whitespace before checking
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| 102 | for the string in the <code>text</code> attribute. Default is
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| 103 | false.
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| 104 | </td>
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| 105 | <td valign="top" align="center">No</td>
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| 106 | </tr>
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| 107 | </table>
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| 108 |
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| 109 | <p>Here is an example of how to use the Contains Selector:</p>
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| 110 |
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| 111 | <blockquote><pre>
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| 112 | <fileset dir="${doc.path}" includes="**/*.html">
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| 113 | <contains text="script" casesensitive="no"/>
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| 114 | </fileset>
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| 115 | </pre></blockquote>
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| 116 |
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| 117 | <p>Selects all the HTML files that contain the string
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| 118 | <code>script</code>.</p>
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| 119 |
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| 120 |
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| 121 | <a name="dateselect"></a>
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| 122 | <h4>Date Selector</h4>
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| 123 |
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| 124 | <p>The <code><date></code> tag in a FileSet will put
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| 125 | a limit on the files specified by the include tag, so that tags
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| 126 | whose last modified date does not meet the date limits specified
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| 127 | by the selector will not end up being selected.</p>
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| 128 |
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| 129 | <table border="1" cellpadding="2" cellspacing="0">
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| 130 | <tr>
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| 131 | <td valign="top"><b>Attribute</b></td>
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| 132 | <td valign="top"><b>Description</b></td>
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| 133 | <td align="center" valign="top"><b>Required</b></td>
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| 134 | </tr>
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| 135 | <tr>
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| 136 | <td valign="top">datetime</td>
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| 137 | <td valign="top">Specifies the date and time to test for.
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| 138 | Should be in the format MM/DD/YYYY HH:MM AM_or_PM, or
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| 139 | an alternative pattern specified via the <i>pattern</i>
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| 140 | attribute.
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| 141 | </td>
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| 142 | <td valign="top" align="center" rowspan="2">At least one of the two.</td>
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| 143 | </tr>
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| 144 | <tr>
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| 145 | <td valign="top">millis</td>
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| 146 | <td valign="top">The number of milliseconds since 1970 that should
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| 147 | be tested for. It is usually much easier to use the datetime
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| 148 | attribute.
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| 149 | </td>
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| 150 | </tr>
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| 151 | <tr>
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| 152 | <td valign="top">when</td>
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| 153 | <td valign="top">Indicates how to interpret the date, whether
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| 154 | the files to be selected are those whose last modified times should
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| 155 | be before, after, or equal to the specified value. Acceptable
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| 156 | values for this attribute are:
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| 157 | <ul>
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| 158 | <li>before - select files whose last modified date is before the indicated date
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| 159 | <li>after - select files whose last modified date is after the indicated date
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| 160 | <li>equal - select files whose last modified date is this exact date
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| 161 | </ul>
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| 162 | The default is equal.
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| 163 | <td valign="top" align="center">No</td>
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| 164 | </tr>
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| 165 | <tr>
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| 166 | <td valign="top">granularity</td>
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| 167 | <td valign="top">The number of milliseconds leeway to use when
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| 168 | comparing file modification times. This is needed because not every
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| 169 | file system supports tracking the last modified time to the
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| 170 | millisecond level. Default is 0 milliseconds, or 2 seconds on DOS systems.
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| 171 | </td>
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| 172 | <td valign="top" align="center">No</td>
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| 173 | </tr>
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| 174 | <tr>
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| 175 | <td valign="top">pattern</td>
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| 176 | <td valign="top">The <CODE>SimpleDateFormat</CODE>-compatible pattern
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| 177 | to use when interpreting the <i>datetime</i> attribute.
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| 178 | <i>Since Ant 1.6.2</i>
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| 179 | </td>
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| 180 | <td valign="top" align="center">No</td>
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| 181 | </tr>
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| 182 | </table>
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| 183 |
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| 184 | <p>Here is an example of how to use the Date Selector:</p>
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| 185 |
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| 186 | <blockquote><pre>
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| 187 | <fileset dir="${jar.path}" includes="**/*.jar">
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| 188 | <date datetime="01/01/2001 12:00 AM" when="before"/>
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| 189 | </fileset>
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| 190 | </pre></blockquote>
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| 191 |
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| 192 | <p>Selects all JAR files which were last modified before midnight
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| 193 | January 1, 2001.</p>
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| 194 |
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| 195 |
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| 196 | <a name="dependselect"></a>
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| 197 | <h4>Depend Selector</h4>
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| 198 |
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| 199 | <p>The <code><depend></code> tag selects files
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| 200 | whose last modified date is later than another, equivalent file in
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| 201 | another location.</p>
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| 202 |
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| 203 | <p>The <code><depend></code> tag supports the use of a
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| 204 | contained <a href="mapper.html"><code><mapper></code></a> element
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| 205 | to define the location of the file to be compared against. If no
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| 206 | <code><mapper></code> element is specified, the
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| 207 | <code>identity</code> type mapper is used.</p>
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| 208 |
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| 209 | <p>The <code><depend></code> selector is case-sensitive.</p>
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| 210 |
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| 211 | <table border="1" cellpadding="2" cellspacing="0">
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| 212 | <tr>
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| 213 | <td valign="top"><b>Attribute</b></td>
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| 214 | <td valign="top"><b>Description</b></td>
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| 215 | <td align="center" valign="top"><b>Required</b></td>
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| 216 | </tr>
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| 217 | <tr>
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| 218 | <td valign="top">targetdir</td>
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| 219 | <td valign="top">The base directory to look for the files to compare
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| 220 | against. The precise location depends on a combination of this
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| 221 | attribute and the <code><mapper></code> element, if any.
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| 222 | </td>
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| 223 | <td valign="top" align="center">Yes</td>
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| 224 | </tr>
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| 225 | <tr>
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| 226 | <td valign="top">granularity</td>
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| 227 | <td valign="top">The number of milliseconds leeway to give before
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| 228 | deciding a file is out of date. This is needed because not every
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| 229 | file system supports tracking the last modified time to the
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| 230 | millisecond level. Default is 0 milliseconds, or 2 seconds on DOS systems.
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| 231 | </td>
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| 232 | <td valign="top" align="center">No</td>
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| 233 | </tr>
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| 234 | </table>
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| 235 |
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| 236 | <p>Here is an example of how to use the Depend Selector:</p>
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| 237 |
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| 238 | <blockquote><pre>
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| 239 | <fileset dir="${ant.1.5}/src/main" includes="**/*.java">
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| 240 | <depend targetdir="${ant.1.4.1}/src/main"/>
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| 241 | </fileset>
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| 242 | </pre></blockquote>
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| 243 |
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| 244 | <p>Selects all the Java source files which were modified in the
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| 245 | 1.5 release.
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| 246 | </p>
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| 247 |
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| 248 |
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| 249 | <a name="depthselect"></a>
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| 250 | <h4>Depth Selector</h4>
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| 251 |
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| 252 | <p>The <code><depth></code> tag selects files based on
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| 253 | how many directy levels deep they are in relation to the base
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| 254 | directory of the fileset.
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| 255 | </p>
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| 256 |
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| 257 | <table border="1" cellpadding="2" cellspacing="0">
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| 258 | <tr>
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| 259 | <td valign="top"><b>Attribute</b></td>
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| 260 | <td valign="top"><b>Description</b></td>
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| 261 | <td align="center" valign="top"><b>Required</b></td>
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| 262 | </tr>
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| 263 | <tr>
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| 264 | <td valign="top">min</td>
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| 265 | <td valign="top">The minimum number of directory levels below
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| 266 | the base directory that a file must be in order to be selected.
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| 267 | Default is no limit.
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| 268 | </td>
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| 269 | <td valign="top" align="center" rowspan="2">At least one of the two.</td>
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| 270 | </tr>
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| 271 | <tr>
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| 272 | <td valign="top">max</td>
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| 273 | <td valign="top">The maximum number of directory levels below
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| 274 | the base directory that a file can be and still be selected.
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| 275 | Default is no limit.
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| 276 | </td>
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| 277 | </tr>
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| 278 | </table>
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| 279 |
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| 280 | <p>Here is an example of how to use the Depth Selector:</p>
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| 281 |
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| 282 | <blockquote><pre>
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| 283 | <fileset dir="${doc.path}" includes="**/*">
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| 284 | <depth max="1"/>
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| 285 | </fileset>
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| 286 | </pre></blockquote>
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| 287 |
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| 288 | <p>Selects all files in the base directory and one directory below
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| 289 | that.</p>
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| 290 |
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| 291 | <a name="differentselect">
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| 292 | <h4>Different Selector</h4>
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| 293 |
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| 294 | <p>The <code><different></code> tag selects files
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| 295 | who are deemed to be 'different' from another, equivalent file in
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| 296 | another location. The rules for determining difference between two
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| 297 | files are as follows:
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| 298 | <ol>
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| 299 | <li> If there is no 'other' file, it's different.
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| 300 | <li> Files with different lengths are different.
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| 301 | <li> If <tt>ignoreFileTimes</tt> is turned off, then differing file
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| 302 | timestamps will cause files to be regarded as different.
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| 303 | <li> Finally a byte-for-byte check is run against the two files
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| 304 | </ol>
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| 305 |
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| 306 | This is a useful selector to work with programs and tasks that don't handle
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| 307 | dependency checking properly; Even if a predecessor task always creates its
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| 308 | output files, followup tasks can be driven off copies made with a different selector,
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| 309 | so their dependencies are driven on the absolute state of the files, not just
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| 310 | a timestamp. For example: anything fetched from a web site, or the output of
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| 311 | some program. To reduce the amount of checking, when using this task inside
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| 312 | a <copy> task, set the <tt>preservelastmodified</tt> to propagate the timestamp
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| 313 | from source file to destintaion file.
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| 314 |
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| 315 |
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| 316 | <p>
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| 317 |
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| 318 | The <code><different></code> tag supports the use of a
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| 319 | contained <a href="mapper.html"><code><mapper></code></a> element
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| 320 | to define the location of the file to be compared against. If no
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| 321 | <code><mapper></code> element is specified, the
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| 322 | <code>identity</code> type mapper is used.</p>
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| 323 |
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| 324 | <table border="1" cellpadding="2" cellspacing="0">
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| 325 | <tr>
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| 326 | <td valign="top"><b>Attribute</b></td>
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| 327 | <td valign="top"><b>Description</b></td>
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| 328 | <td align="center" valign="top"><b>Required</b></td>
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| 329 | </tr>
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| 330 | <tr>
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| 331 | <td valign="top">targetdir</td>
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| 332 | <td valign="top">The base directory to look for the files to compare
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| 333 | against. The precise location depends on a combination of this
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| 334 | attribute and the <code><mapper></code> element, if any.
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| 335 | </td>
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| 336 | <td valign="top" align="center">Yes</td>
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| 337 | </tr>
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| 338 | <tr>
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| 339 | <td valign="top">ignoreFileTimes</td>
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| 340 | <td valign="top">Whether to use file times in the comparison or not.
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| 341 | Default is true (time differences are ignored).
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| 342 | </td>
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| 343 | <td valign="top" align="center">No</td>
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| 344 | </tr>
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| 345 | <tr>
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| 346 | <td valign="top">granularity</td>
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| 347 | <td valign="top">The number of milliseconds leeway to give before
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| 348 | deciding a file is out of date. This is needed because not every
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| 349 | file system supports tracking the last modified time to the
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| 350 | millisecond level. Default is 0 milliseconds, or 2 seconds on DOS systems.
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| 351 | </td>
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| 352 | <td valign="top" align="center">No</td>
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| 353 | </tr>
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| 354 | </table>
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| 355 |
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| 356 | <p>Here is an example of how to use the Different Selector:</p>
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| 357 |
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| 358 | <blockquote><pre>
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| 359 | <fileset dir="${ant.1.5}/src/main" includes="**/*.java">
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| 360 | <different targetdir="${ant.1.4.1}/src/main"
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| 361 | ignoreFileTimes="true"/>
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| 362 | </fileset>
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| 363 | </pre></blockquote>
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| 364 |
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| 365 | <p>Compares all the Java source files between the 1.4.1 and the 1.5 release
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| 366 | and selects those who are different, disregarding file times.
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| 367 | </p>
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| 368 |
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| 369 | <a name="filenameselect"></a>
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| 370 | <h4>Filename Selector</h4>
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| 371 |
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| 372 | <p>The <code><filename></code> tag acts like the
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| 373 | <code><include></code> and <code><exclude></code>
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| 374 | tags within a fileset. By using a selector instead, however,
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| 375 | one can combine it with all the other selectors using whatever
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| 376 | <a href="#selectcontainers">selector container</a> is desired.
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| 377 | </p>
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| 378 |
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| 379 | <p>The <code><filename></code> selector is
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| 380 | case-sensitive.</p>
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| 381 |
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| 382 | <table border="1" cellpadding="2" cellspacing="0">
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| 383 | <tr>
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| 384 | <td valign="top"><b>Attribute</b></td>
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| 385 | <td valign="top"><b>Description</b></td>
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| 386 | <td align="center" valign="top"><b>Required</b></td>
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| 387 | </tr>
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| 388 | <tr>
|
|---|
| 389 | <td valign="top">name</td>
|
|---|
| 390 | <td valign="top">The name of files to select. The name parameter
|
|---|
| 391 | can contain the standard Ant wildcard characters.
|
|---|
| 392 | </td>
|
|---|
| 393 | <td valign="top" align="center">Yes</td>
|
|---|
| 394 | </tr>
|
|---|
| 395 | <tr>
|
|---|
| 396 | <td valign="top">casesensitive</td>
|
|---|
| 397 | <td valign="top">Whether to pay attention to case when looking
|
|---|
| 398 | at file names. Default is "true".
|
|---|
| 399 | </td>
|
|---|
| 400 | <td valign="top" align="center">No</td>
|
|---|
| 401 | </tr>
|
|---|
| 402 | <tr>
|
|---|
| 403 | <td valign="top">negate</td>
|
|---|
| 404 | <td valign="top">Whether to reverse the effects of this filename
|
|---|
| 405 | selection, therefore emulating an exclude rather than include
|
|---|
| 406 | tag. Default is "false".
|
|---|
| 407 | </td>
|
|---|
| 408 | <td valign="top" align="center">No</td>
|
|---|
| 409 | </tr>
|
|---|
| 410 | </table>
|
|---|
| 411 |
|
|---|
| 412 | <p>Here is an example of how to use the Filename Selector:</p>
|
|---|
| 413 |
|
|---|
| 414 | <blockquote><pre>
|
|---|
| 415 | <fileset dir="${doc.path}" includes="**/*">
|
|---|
| 416 | <filename name="**/*.css"/>
|
|---|
| 417 | </fileset>
|
|---|
| 418 | </pre></blockquote>
|
|---|
| 419 |
|
|---|
| 420 | <p>Selects all the cascading style sheet files.</p>
|
|---|
| 421 |
|
|---|
| 422 |
|
|---|
| 423 | <a name="presentselect"></a>
|
|---|
| 424 | <h4>Present Selector</h4>
|
|---|
| 425 |
|
|---|
| 426 | <p>The <code><present></code> tag selects files
|
|---|
| 427 | that have an equivalent file in another directory tree.</p>
|
|---|
| 428 |
|
|---|
| 429 | <p>The <code><present></code> tag supports the use of a
|
|---|
| 430 | contained <a href="mapper.html"><code><mapper></code></a> element
|
|---|
| 431 | to define the location of the file to be tested against. If no
|
|---|
| 432 | <code><mapper></code> element is specified, the
|
|---|
| 433 | <code>identity</code> type mapper is used.</p>
|
|---|
| 434 |
|
|---|
| 435 | <p>The <code><present></code> selector is case-sensitive.</p>
|
|---|
| 436 |
|
|---|
| 437 | <table border="1" cellpadding="2" cellspacing="0">
|
|---|
| 438 | <tr>
|
|---|
| 439 | <td valign="top"><b>Attribute</b></td>
|
|---|
| 440 | <td valign="top"><b>Description</b></td>
|
|---|
| 441 | <td align="center" valign="top"><b>Required</b></td>
|
|---|
| 442 | </tr>
|
|---|
| 443 | <tr>
|
|---|
| 444 | <td valign="top">targetdir</td>
|
|---|
| 445 | <td valign="top">The base directory to look for the files to compare
|
|---|
| 446 | against. The precise location depends on a combination of this
|
|---|
| 447 | attribute and the <code><mapper></code> element, if any.
|
|---|
| 448 | </td>
|
|---|
| 449 | <td valign="top" align="center">Yes</td>
|
|---|
| 450 | </tr>
|
|---|
| 451 | <tr>
|
|---|
| 452 | <td valign="top">present</td>
|
|---|
| 453 | <td valign="top">Whether we are requiring that a file is present in
|
|---|
| 454 | the src directory tree only, or in both the src and the target
|
|---|
| 455 | directory tree. Valid values are:
|
|---|
| 456 | <ul>
|
|---|
| 457 | <li>srconly - select files only if they are in the src
|
|---|
| 458 | directory tree but not in the target directory tree
|
|---|
| 459 | <li>both - select files only if they are present both in the
|
|---|
| 460 | src and target directory trees
|
|---|
| 461 | </ul>
|
|---|
| 462 | Default is both. Setting this attribute to "srconly"
|
|---|
| 463 | is equivalent to wrapping the selector in the <not>
|
|---|
| 464 | selector container.
|
|---|
| 465 | </td>
|
|---|
| 466 | <td valign="top" align="center">No</td>
|
|---|
| 467 | </tr>
|
|---|
| 468 | </table>
|
|---|
| 469 |
|
|---|
| 470 | <p>Here is an example of how to use the Present Selector:</p>
|
|---|
| 471 |
|
|---|
| 472 | <blockquote><pre>
|
|---|
| 473 | <fileset dir="${ant.1.5}/src/main" includes="**/*.java">
|
|---|
| 474 | <present present="srconly" targetdir="${ant.1.4.1}/src/main"/>
|
|---|
| 475 | </fileset>
|
|---|
| 476 | </pre></blockquote>
|
|---|
| 477 |
|
|---|
| 478 | <p>Selects all the Java source files which are new in the
|
|---|
| 479 | 1.5 release.
|
|---|
| 480 | </p>
|
|---|
| 481 |
|
|---|
| 482 | <a name="regexpselect"></a>
|
|---|
| 483 | <h4>Regular Expression Selector</h4>
|
|---|
| 484 |
|
|---|
| 485 | <p>The <code><containsregexp></code> tag in a FileSet limits
|
|---|
| 486 | the files defined by that fileset to only those which contain a
|
|---|
| 487 | match to the regular expression specified by the <code>expression</code> attribute.
|
|---|
| 488 | </p>
|
|---|
| 489 |
|
|---|
| 490 | <table border="1" cellpadding="2" cellspacing="0">
|
|---|
| 491 | <tr>
|
|---|
| 492 | <td valign="top"><b>Attribute</b></td>
|
|---|
| 493 | <td valign="top"><b>Description</b></td>
|
|---|
| 494 | <td align="center" valign="top"><b>Required</b></td>
|
|---|
| 495 | </tr>
|
|---|
| 496 | <tr>
|
|---|
| 497 | <td valign="top">expression</td>
|
|---|
| 498 | <td valign="top">Specifies the regular expression that must
|
|---|
| 499 | match true in every file</td>
|
|---|
| 500 | <td valign="top" align="center">Yes</td>
|
|---|
| 501 | </tr>
|
|---|
| 502 | </table>
|
|---|
| 503 |
|
|---|
| 504 | <p>Here is an example of how to use the regular expression Selector:</p>
|
|---|
| 505 |
|
|---|
| 506 | <blockquote><pre>
|
|---|
| 507 | <fileset dir="${doc.path}" includes="*.txt">
|
|---|
| 508 | <containsregexp expression="[4-6]\.[0-9]"/>
|
|---|
| 509 | </fileset>
|
|---|
| 510 | </pre></blockquote>
|
|---|
| 511 |
|
|---|
| 512 | <p>Selects all the text files that match the regular expression
|
|---|
| 513 | (have a 4,5 or 6 followed by a period and a number from 0 to 9).
|
|---|
| 514 |
|
|---|
| 515 |
|
|---|
| 516 | <a name="sizeselect"></a>
|
|---|
| 517 | <h4>Size Selector</h4>
|
|---|
| 518 |
|
|---|
| 519 | <p>The <code><size></code> tag in a FileSet will put
|
|---|
| 520 | a limit on the files specified by the include tag, so that tags
|
|---|
| 521 | which do not meet the size limits specified by the selector will not
|
|---|
| 522 | end up being selected.</p>
|
|---|
| 523 |
|
|---|
| 524 | <table border="1" cellpadding="2" cellspacing="0">
|
|---|
| 525 | <tr>
|
|---|
| 526 | <td valign="top"><b>Attribute</b></td>
|
|---|
| 527 | <td valign="top"><b>Description</b></td>
|
|---|
| 528 | <td align="center" valign="top"><b>Required</b></td>
|
|---|
| 529 | </tr>
|
|---|
| 530 | <tr>
|
|---|
| 531 | <td valign="top">value</td>
|
|---|
| 532 | <td valign="top">The size of the file which should be tested for.
|
|---|
| 533 | </td>
|
|---|
| 534 | <td valign="top" align="center">Yes</td>
|
|---|
| 535 | </tr>
|
|---|
| 536 | <tr>
|
|---|
| 537 | <td valign="top">units</td>
|
|---|
| 538 | <td valign="top">The units that the <code>value</code> attribute
|
|---|
| 539 | is expressed in. When using the standard single letter SI
|
|---|
| 540 | designations, such as "k","M", or
|
|---|
| 541 | "G", multiples of 1000 are used. If you want to use
|
|---|
| 542 | power of 2 units, use the IEC standard: "Ki" for 1024,
|
|---|
| 543 | "Mi" for 1048576, and so on. The default is no units,
|
|---|
| 544 | which means the <code>value</code> attribute expresses the exact
|
|---|
| 545 | number of bytes.
|
|---|
| 546 | </td>
|
|---|
| 547 | <td valign="top" align="center">No</td>
|
|---|
| 548 | </tr>
|
|---|
| 549 | <tr>
|
|---|
| 550 | <td valign="top">when</td>
|
|---|
| 551 | <td valign="top">Indicates how to interpret the size, whether
|
|---|
| 552 | the files to be selected should be larger, smaller, or equal to
|
|---|
| 553 | that value. Acceptable values for this attribute are:
|
|---|
| 554 | <ul>
|
|---|
| 555 | <li>less - select files less than the indicated size
|
|---|
| 556 | <li>more - select files greater than the indicated size
|
|---|
| 557 | <li>equal - select files this exact size
|
|---|
| 558 | </ul>
|
|---|
| 559 | The default is less.
|
|---|
| 560 | <td valign="top" align="center">No</td>
|
|---|
| 561 | </tr>
|
|---|
| 562 | </table>
|
|---|
| 563 |
|
|---|
| 564 | <p>Here is an example of how to use the Size Selector:</p>
|
|---|
| 565 |
|
|---|
| 566 | <blockquote><pre>
|
|---|
| 567 | <fileset dir="${jar.path}">
|
|---|
| 568 | <patternset>
|
|---|
| 569 | <include name="**/*.jar"/>
|
|---|
| 570 | </patternset>
|
|---|
| 571 | <size value="4" units="Ki" when="more"/>
|
|---|
| 572 | </fileset>
|
|---|
| 573 | </pre></blockquote>
|
|---|
| 574 |
|
|---|
| 575 | <p>Selects all JAR files that are larger than 4096 bytes.</p>
|
|---|
| 576 |
|
|---|
| 577 | <a name="typeselect"></a>
|
|---|
| 578 | <h4>Type Selector</h4>
|
|---|
| 579 |
|
|---|
| 580 | <p>The <code><type></code> tag selects files of a certain type:
|
|---|
| 581 | directory or regular.</p>
|
|---|
| 582 |
|
|---|
| 583 | <table border="1" cellpadding="2" cellspacing="0">
|
|---|
| 584 | <tr>
|
|---|
| 585 | <td valign="top"><b>Attribute</b></td>
|
|---|
| 586 | <td valign="top"><b>Description</b></td>
|
|---|
| 587 | <td align="center" valign="top"><b>Required</b></td>
|
|---|
| 588 | </tr>
|
|---|
| 589 | <tr>
|
|---|
| 590 | <td valign="top">type</td>
|
|---|
| 591 | <td valign="top">The type of file which should be tested for.
|
|---|
| 592 | Acceptable values are:
|
|---|
| 593 | <ul>
|
|---|
| 594 | <li>file - regular files</li>
|
|---|
| 595 | <li>dir - directories</li>
|
|---|
| 596 | </ul>
|
|---|
| 597 | </td>
|
|---|
| 598 | <td valign="top" align="center">Yes</td>
|
|---|
| 599 | </tr>
|
|---|
| 600 | </table>
|
|---|
| 601 |
|
|---|
| 602 | <p>Here is an example of how to use the Type Selector to select only
|
|---|
| 603 | directories in <code>${src}</code></p>
|
|---|
| 604 |
|
|---|
| 605 | <blockquote><pre>
|
|---|
| 606 | <fileset dir="${src}">
|
|---|
| 607 | <type type="dir"/>
|
|---|
| 608 | </fileset>
|
|---|
| 609 | </pre></blockquote>
|
|---|
| 610 |
|
|---|
| 611 | <p>The Type Selector is often used in conjunction with other selectors.
|
|---|
| 612 | For example, to select files that also exist in a <code>template</code>
|
|---|
| 613 | directory, but avoid selecting empty directories, use:
|
|---|
| 614 |
|
|---|
| 615 | <blockquote><pre>
|
|---|
| 616 | <fileset dir="${src}">
|
|---|
| 617 | <and>
|
|---|
| 618 | <present targetdir="template"/>
|
|---|
| 619 | <type type="file"/>
|
|---|
| 620 | </and>
|
|---|
| 621 | </fileset>
|
|---|
| 622 | </pre></blockquote>
|
|---|
| 623 |
|
|---|
| 624 |
|
|---|
| 625 | <a name="modified"></a>
|
|---|
| 626 | <h4>Modified Selector</h4>
|
|---|
| 627 | <p>The <modified> selector computes a value for a file, compares that
|
|---|
| 628 | to the value stored in a cache and select the file, if these two values
|
|---|
| 629 | differ.</p>
|
|---|
| 630 | <p>Because this selector is highly configurable the order in which the selection is done
|
|---|
| 631 | is: <ol>
|
|---|
| 632 | <li> get the absolute path for the file </li>
|
|---|
| 633 | <li> get the cached value from the configured cache (absolute path as key) </li>
|
|---|
| 634 | <li> get the new value from the configured algorithm </li>
|
|---|
| 635 | <li> compare these two values with the configured comparator </li>
|
|---|
| 636 | <li> update the cache if needed and requested </li>
|
|---|
| 637 | <li> do the selection according to the comparison result </li>
|
|---|
| 638 | </ol>
|
|---|
| 639 | The comparison, computing of the hashvalue and the store is done by implementation
|
|---|
| 640 | of special interfaces. Therefore they may provide additional parameters.</p>
|
|---|
| 641 |
|
|---|
| 642 | <table border="1" cellpadding="2" cellspacing="0">
|
|---|
| 643 | <tr>
|
|---|
| 644 | <td valign="top"><b>Attribute</b></td>
|
|---|
| 645 | <td valign="top"><b>Description</b></td>
|
|---|
| 646 | <td align="center" valign="top"><b>Required</b></td>
|
|---|
| 647 | </tr>
|
|---|
| 648 | <tr>
|
|---|
| 649 | <td valign="top"> algorithm </td>
|
|---|
| 650 | <td valign="top"> The type of algorithm should be used.
|
|---|
| 651 | Acceptable values are (further information see later):
|
|---|
| 652 | <ul>
|
|---|
| 653 | <li> hashvalue - HashvalueAlgorithm </li>
|
|---|
| 654 | <li> digest - DigestAlgorithm </li>
|
|---|
| 655 | </ul>
|
|---|
| 656 | </td>
|
|---|
| 657 | <td valign="top" align="center"> No, defaults to <i>digest</i> </td>
|
|---|
| 658 | </tr>
|
|---|
| 659 | <tr>
|
|---|
| 660 | <td valign="top"> cache </td>
|
|---|
| 661 | <td valign="top"> The type of cache should be used.
|
|---|
| 662 | Acceptable values are (further information see later):
|
|---|
| 663 | <ul>
|
|---|
| 664 | <li> propertyfile - PropertyfileCache </li>
|
|---|
| 665 | </ul>
|
|---|
| 666 | </td>
|
|---|
| 667 | <td valign="top" align="center"> No, defaults to <i>propertyfile</i> </td>
|
|---|
| 668 | </tr>
|
|---|
| 669 | <tr>
|
|---|
| 670 | <td valign="top"> comparator </td>
|
|---|
| 671 | <td valign="top"> The type of comparator should be used.
|
|---|
| 672 | Acceptable values are (further information see later):
|
|---|
| 673 | <ul>
|
|---|
| 674 | <li> equal - EqualComparator </li>
|
|---|
| 675 | <li> rule - java.text.RuleBasedCollator </li>
|
|---|
| 676 | </ul>
|
|---|
| 677 | </td>
|
|---|
| 678 | <td valign="top" align="center"> No, defaults to <i>equal</i> </td>
|
|---|
| 679 | </tr>
|
|---|
| 680 | <tr>
|
|---|
| 681 | <td valign="top"> update </td>
|
|---|
| 682 | <td valign="top"> Should the cache be updated when values differ? (boolean) </td>
|
|---|
| 683 | <td valign="top" align="center"> No, defaults to <i>true</i> </td>
|
|---|
| 684 | </tr>
|
|---|
| 685 | <tr>
|
|---|
| 686 | <td valign="top"> seldirs </td>
|
|---|
| 687 | <td valign="top"> Should directories be selected? (boolean) </td>
|
|---|
| 688 | <td valign="top" align="center"> No, defaults to <i>true</i> </td>
|
|---|
| 689 | </tr>
|
|---|
| 690 | </table>
|
|---|
| 691 |
|
|---|
| 692 | <p>These attributes can be set with nested <param/> tags. With <param/>
|
|---|
| 693 | tags you can set other values too - as long as they are named according to
|
|---|
| 694 | the following rules: <ul>
|
|---|
| 695 | <li> <b> algorithm </b>: same as attribute algorithm </li>
|
|---|
| 696 | <li> <b> cache </b>: same as attribute cache </li>
|
|---|
| 697 | <li> <b> comparator </b>: same as attribute comparator </li>
|
|---|
| 698 | <li> <b> update </b>: same as attribute update </li>
|
|---|
| 699 | <li> <b> seldirs </b>: same as attribute seldirs </li>
|
|---|
| 700 | <li> <b> algorithm.* </b>: Value is transfered to the algorithm via its
|
|---|
| 701 | <i>set</i>XX-methods </li>
|
|---|
| 702 | <li> <b> cache.* </b>: Value is transfered to the cache via its
|
|---|
| 703 | <i>set</i>XX-methods </li>
|
|---|
| 704 | <li> <b> comparator.* </b>: Value is transfered to the comparator via its
|
|---|
| 705 | <i>set</i>XX-methods </li>
|
|---|
| 706 | </ul></p>
|
|---|
| 707 |
|
|---|
| 708 | <table border="1" cellpadding="2" cellspacing="0">
|
|---|
| 709 | <tr><td colspan="2"><font size="+1"><b> Algorithm's </b></font></td></tr>
|
|---|
| 710 | <tr>
|
|---|
| 711 | <td valign="top"><b>Name</b></td>
|
|---|
| 712 | <td valign="top"><b>Description</b></td>
|
|---|
| 713 | </tr>
|
|---|
| 714 | <tr>
|
|---|
| 715 | <td valign="top"> hashvalue </td>
|
|---|
| 716 | <td valign="top"> Reads the content of a file into a java.lang.String
|
|---|
| 717 | and use thats hashValue(). No additional configuration required.
|
|---|
| 718 | </td>
|
|---|
| 719 | </tr>
|
|---|
| 720 | <tr>
|
|---|
| 721 | <td valign="top"> digest </td>
|
|---|
| 722 | <td valign="top"> Uses java.security.MessageDigest. This Algorithm supports
|
|---|
| 723 | the following attributes:
|
|---|
| 724 | <ul>
|
|---|
| 725 | <li><i>algorithm.algorithm</i> (optional): Name of the Digest algorithm
|
|---|
| 726 | (e.g. 'MD5' or 'SHA', default = <i>MD5</i>) </li>
|
|---|
| 727 | <li><i>algorithm.provider</i> (optional): Name of the Digest provider
|
|---|
| 728 | (default = <i>null</i>) </li>
|
|---|
| 729 | </ul>
|
|---|
| 730 | </td>
|
|---|
| 731 | </tr>
|
|---|
| 732 | <tr><td colspan="2"><font size="+1"><b> Cache's </b></font></td></tr>
|
|---|
| 733 | <tr>
|
|---|
| 734 | <td valign="top"> propertyfile </td>
|
|---|
| 735 | <td valign="top"> Use the java.util.Properties class and its possibility
|
|---|
| 736 | to load and store to file.
|
|---|
| 737 | This Cache implementation supports the following attributes:
|
|---|
| 738 | <ul>
|
|---|
| 739 | <li><i>cache.cachefile</i> (optional): Name of the properties-file
|
|---|
| 740 | (default = <i>cache.properties</i>) </li>
|
|---|
| 741 | </ul>
|
|---|
| 742 | </td>
|
|---|
| 743 | </tr>
|
|---|
| 744 | <tr><td colspan="2"><font size="+1"><b> Comparator's </b></font></td></tr>
|
|---|
| 745 | <tr>
|
|---|
| 746 | <td valign="top"> equal </td>
|
|---|
| 747 | <td valign="top"> Very simple object comparison. </td>
|
|---|
| 748 | </tr>
|
|---|
| 749 | <tr>
|
|---|
| 750 | <td valign="top"> rule </td>
|
|---|
| 751 | <td valign="top"> Uses <i>java.text.RuleBasedCollator</i> for Object
|
|---|
| 752 | comparison.
|
|---|
| 753 | </td>
|
|---|
| 754 | </tr>
|
|---|
| 755 | </table>
|
|---|
| 756 |
|
|---|
| 757 | <p>Here are some examples of how to use the Modified Selector:</p>
|
|---|
| 758 |
|
|---|
| 759 | <blockquote><pre>
|
|---|
| 760 | <copy todir="dest">
|
|---|
| 761 | <fileset dir="src">
|
|---|
| 762 | <modified/>
|
|---|
| 763 | </fileset>
|
|---|
| 764 | </copy
|
|---|
| 765 | </pre></blockquote>
|
|---|
| 766 | <p>This will copy all files from <i>src</i> to <i>dest</i> which content has changed.
|
|---|
| 767 | Using an updating PropertyfileCache with cache.properties and
|
|---|
| 768 | MD5-DigestAlgorithm.</p>
|
|---|
| 769 |
|
|---|
| 770 | <blockquote><pre>
|
|---|
| 771 | <copy todir="dest">
|
|---|
| 772 | <fileset dir="src">
|
|---|
| 773 | <modified update="true"
|
|---|
| 774 | seldirs="true"
|
|---|
| 775 | cache="propertyfile"
|
|---|
| 776 | algorithm="digest"
|
|---|
| 777 | comparator="equal">
|
|---|
| 778 | <param name="cache.cachefile" value="cache.properties"/>
|
|---|
| 779 | <param name="algorithm.algorithm" value="MD5"/>
|
|---|
| 780 | </modified>
|
|---|
| 781 | </fileset>
|
|---|
| 782 | </copy>
|
|---|
| 783 | </pre></blockquote>
|
|---|
| 784 | <p>This is the same example rewritten as CoreSelector with setting the all the values
|
|---|
| 785 | (same as defaults are).</p>
|
|---|
| 786 |
|
|---|
| 787 | <blockquote><pre>
|
|---|
| 788 | <copy todir="dest">
|
|---|
| 789 | <fileset dir="src">
|
|---|
| 790 | <custom class="org.apache.tools.ant.types.selectors.modifiedselector.ModifiedSelector">
|
|---|
| 791 | <param name="update" value="true"/>
|
|---|
| 792 | <param name="seldirs" value="true"/>
|
|---|
| 793 | <param name="cache" value="propertyfile"/>
|
|---|
| 794 | <param name="algorithm" value="digest"/>
|
|---|
| 795 | <param name="comparator" value="equal"/>
|
|---|
| 796 | <param name="cache.cachefile" value="cache.properties"/>
|
|---|
| 797 | <param name="algorithm.algorithm" value="MD5"/>
|
|---|
| 798 | </custom>
|
|---|
| 799 | </fileset>
|
|---|
| 800 | </copy>
|
|---|
| 801 | </pre></blockquote>
|
|---|
| 802 | <p>And this is the same rewritten as CustomSelector.</p>
|
|---|
| 803 |
|
|---|
| 804 | <blockquote><pre>
|
|---|
| 805 | <target name="generate-and-upload-site">
|
|---|
| 806 | <echo> generate the site using forrest </echo>
|
|---|
| 807 | <antcall target="site"/>
|
|---|
| 808 |
|
|---|
| 809 | <echo> upload the changed file </echo>
|
|---|
| 810 | <ftp server="${ftp.server}" userid="${ftp.user}" password="${ftp.pwd}">
|
|---|
| 811 | <fileset dir="htdocs/manual">
|
|---|
| 812 | <modified/>
|
|---|
| 813 | </fileset>
|
|---|
| 814 | </ftp>
|
|---|
| 815 | </target>
|
|---|
| 816 | </pre></blockquote>
|
|---|
| 817 | <p>A useful scenario for this selector inside a build environment
|
|---|
| 818 | for homepage generation (e.g. with <a href="http://xml.apache.org/forrest/">
|
|---|
| 819 | Apache Forrest</a>). Here all <b>changed</b> files are uploaded to the server. The
|
|---|
| 820 | CacheSelector saves therefore much upload time.</p>
|
|---|
| 821 |
|
|---|
| 822 |
|
|---|
| 823 | <a name="selectcontainers"></a>
|
|---|
| 824 | <h3>Selector Containers</h3>
|
|---|
| 825 |
|
|---|
| 826 | <p>To create more complex selections, a variety of selectors that
|
|---|
| 827 | contain other selectors are available for your use. They combine the
|
|---|
| 828 | selections of their child selectors in various ways.</p>
|
|---|
| 829 |
|
|---|
| 830 | <p>The selector containers are:</p>
|
|---|
| 831 |
|
|---|
| 832 | <ul>
|
|---|
| 833 | <li><a href="#andselect"><and></a> - select a file only if all
|
|---|
| 834 | the contained selectors select it.
|
|---|
| 835 | <li><a href="#majorityselect"><majority></a> - select a file
|
|---|
| 836 | if a majority of its selectors select it.
|
|---|
| 837 | <li><a href="#noneselect"><none></a> - select a file only if
|
|---|
| 838 | none of the contained selectors select it.
|
|---|
| 839 | <li><a href="#notselect"><not></a> - can contain only one
|
|---|
| 840 | selector, and reverses what it selects and doesn't select.
|
|---|
| 841 | <li><a href="#orselect"><or></a> - selects a file if any one
|
|---|
| 842 | of the contained selectors selects it.
|
|---|
| 843 | <li><a href="#selectorselect"><selector></a> - contains only one
|
|---|
| 844 | selector and forwards all requests to it without alteration, provided
|
|---|
| 845 | that any <code>"if"</code> or
|
|---|
| 846 | <code>"unless"</code> conditions are met. This
|
|---|
| 847 | is the selector to use if you want to define a reference. It is
|
|---|
| 848 | usable as an element of <code><project></code>. It is also
|
|---|
| 849 | the one to use if you want selection of files to be dependent on
|
|---|
| 850 | Ant property settings.
|
|---|
| 851 | </ul>
|
|---|
| 852 |
|
|---|
| 853 | <p>All selector containers can contain any other selector, including
|
|---|
| 854 | other containers, as an element. Using containers, the selector tags
|
|---|
| 855 | can be arbitrarily deep. Here is a complete list of allowable
|
|---|
| 856 | selector elements within a container:</P>
|
|---|
| 857 |
|
|---|
| 858 | <ul>
|
|---|
| 859 | <li><and>
|
|---|
| 860 | <li><contains>
|
|---|
| 861 | <li><custom>
|
|---|
| 862 | <li><date>
|
|---|
| 863 | <li><depend>
|
|---|
| 864 | <li><depth>
|
|---|
| 865 | <li><filename>
|
|---|
| 866 | <li><majority>
|
|---|
| 867 | <li><none>
|
|---|
| 868 | <li><not>
|
|---|
| 869 | <li><or>
|
|---|
| 870 | <li><present>
|
|---|
| 871 | <li><selector>
|
|---|
| 872 | <li><size>
|
|---|
| 873 | </ul>
|
|---|
| 874 |
|
|---|
| 875 | <a name="andselect"></a>
|
|---|
| 876 | <h4>And Selector</h4>
|
|---|
| 877 |
|
|---|
| 878 | <p>The <code><and></code> tag selects files that are
|
|---|
| 879 | selected by all of the elements it contains. It returns as
|
|---|
| 880 | soon as it finds a selector that does not select the file,
|
|---|
| 881 | so it is not guaranteed to check every selector.
|
|---|
| 882 | </p>
|
|---|
| 883 |
|
|---|
| 884 | <p>Here is an example of how to use the And Selector:</p>
|
|---|
| 885 |
|
|---|
| 886 | <blockquote><pre>
|
|---|
| 887 | <fileset dir="${dist}" includes="**/*.jar">
|
|---|
| 888 | <and>
|
|---|
| 889 | <size value="4" units="Ki" when="more"/>
|
|---|
| 890 | <date datetime="01/01/2001 12:00 AM" when="before"/>
|
|---|
| 891 | </and>
|
|---|
| 892 | </fileset>
|
|---|
| 893 | </pre></blockquote>
|
|---|
| 894 |
|
|---|
| 895 | <p>Selects all the JAR file larger than 4096 bytes which haven't been update
|
|---|
| 896 | since the last millenium.
|
|---|
| 897 | </p>
|
|---|
| 898 |
|
|---|
| 899 |
|
|---|
| 900 | <a name="majorityselect"></a>
|
|---|
| 901 | <h4>Majority Selector</h4>
|
|---|
| 902 |
|
|---|
| 903 | <p>The <code><majority></code> tag selects files provided
|
|---|
| 904 | that a majority of the contained elements also select it. Ties are
|
|---|
| 905 | dealt with as specified by the <code>allowtie</code> attribute.
|
|---|
| 906 | </p>
|
|---|
| 907 |
|
|---|
| 908 | <table border="1" cellpadding="2" cellspacing="0">
|
|---|
| 909 | <tr>
|
|---|
| 910 | <td valign="top"><b>Attribute</b></td>
|
|---|
| 911 | <td valign="top"><b>Description</b></td>
|
|---|
| 912 | <td align="center" valign="top"><b>Required</b></td>
|
|---|
| 913 | </tr>
|
|---|
| 914 | <tr>
|
|---|
| 915 | <td valign="top">allowtie</td>
|
|---|
| 916 | <td valign="top">Whether files should be selected if there
|
|---|
| 917 | are an even number of selectors selecting them as are
|
|---|
| 918 | not selecting them. Default is true.
|
|---|
| 919 | </td>
|
|---|
| 920 | <td valign="top" align="center">No</td>
|
|---|
| 921 | </tr>
|
|---|
| 922 | </table>
|
|---|
| 923 |
|
|---|
| 924 |
|
|---|
| 925 | <p>Here is an example of how to use the Majority Selector:</p>
|
|---|
| 926 |
|
|---|
| 927 | <blockquote><pre>
|
|---|
| 928 | <fileset dir="${docs}" includes="**/*.html">
|
|---|
| 929 | <majority>
|
|---|
| 930 | <contains text="project" casesensitive="false"/>
|
|---|
| 931 | <contains text="taskdef" casesensitive="false"/>
|
|---|
| 932 | <contains text="IntrospectionHelper" casesensitive="true"/>
|
|---|
| 933 | </majority>
|
|---|
| 934 | </fileset>
|
|---|
| 935 | </pre></blockquote>
|
|---|
| 936 |
|
|---|
| 937 | <p>Selects all the HTML files which contain at least two of the three
|
|---|
| 938 | phrases "project", "taskdef", and "IntrospectionHelper" (this last phrase must
|
|---|
| 939 | match case exactly).
|
|---|
| 940 | </p>
|
|---|
| 941 |
|
|---|
| 942 |
|
|---|
| 943 | <a name="noneselect"></a>
|
|---|
| 944 | <h4>None Selector</h4>
|
|---|
| 945 |
|
|---|
| 946 | <p>The <code><none></code> tag selects files that are
|
|---|
| 947 | not selected by any of the elements it contains. It returns as
|
|---|
| 948 | soon as it finds a selector that selects the file,
|
|---|
| 949 | so it is not guaranteed to check every selector.
|
|---|
| 950 | </p>
|
|---|
| 951 |
|
|---|
| 952 | <p>Here is an example of how to use the None Selector:</p>
|
|---|
| 953 |
|
|---|
| 954 | <blockquote><pre>
|
|---|
| 955 | <fileset dir="${src}" includes="**/*.java">
|
|---|
| 956 | <none>
|
|---|
| 957 | <present targetdir="${dest}"/>
|
|---|
| 958 | <present targetdir="${dest}">
|
|---|
| 959 | <mapper type="glob" from="*.java" to="*.class"/>
|
|---|
| 960 | </present>
|
|---|
| 961 | </none>
|
|---|
| 962 | </fileset>
|
|---|
| 963 | </pre></blockquote>
|
|---|
| 964 |
|
|---|
| 965 | <p>Selects only Java files which do not have equivalent java or
|
|---|
| 966 | class files in the dest directory.
|
|---|
| 967 | </p>
|
|---|
| 968 |
|
|---|
| 969 |
|
|---|
| 970 | <a name="notselect"></a>
|
|---|
| 971 | <h4>Not Selector</h4>
|
|---|
| 972 |
|
|---|
| 973 | <p>The <code><not></code> tag reverses the meaning of the
|
|---|
| 974 | single selector it contains.
|
|---|
| 975 | </p>
|
|---|
| 976 |
|
|---|
| 977 | <p>Here is an example of how to use the Not Selector:</p>
|
|---|
| 978 |
|
|---|
| 979 | <blockquote><pre>
|
|---|
| 980 | <fileset dir="${src}" includes="**/*.java">
|
|---|
| 981 | <not>
|
|---|
| 982 | <contains text="test"/>
|
|---|
| 983 | </not>
|
|---|
| 984 | </fileset>
|
|---|
| 985 | </pre></blockquote>
|
|---|
| 986 |
|
|---|
| 987 | <p>Selects all the files in the src directory that do not contain the
|
|---|
| 988 | string "test".
|
|---|
| 989 | </p>
|
|---|
| 990 |
|
|---|
| 991 |
|
|---|
| 992 | <a name="orselect"></a>
|
|---|
| 993 | <h4>Or Selector</h4>
|
|---|
| 994 |
|
|---|
| 995 | <p>The <code><or></code> tag selects files that are
|
|---|
| 996 | selected by any one of the elements it contains. It returns as
|
|---|
| 997 | soon as it finds a selector that selects the file,
|
|---|
| 998 | so it is not guaranteed to check every selector.
|
|---|
| 999 | </p>
|
|---|
| 1000 |
|
|---|
| 1001 | <p>Here is an example of how to use the Or Selector:</p>
|
|---|
| 1002 |
|
|---|
| 1003 | <blockquote><pre>
|
|---|
| 1004 | <fileset dir="${basedir}">
|
|---|
| 1005 | <or>
|
|---|
| 1006 | <depth max="0"/>
|
|---|
| 1007 | <filename name="*.png"/>
|
|---|
| 1008 | <filename name="*.gif"/>
|
|---|
| 1009 | <filename name="*.jpg"/>
|
|---|
| 1010 | </or>
|
|---|
| 1011 | </fileset>
|
|---|
| 1012 | </pre></blockquote>
|
|---|
| 1013 |
|
|---|
| 1014 | <p>Selects all the files in the top directory along with all the
|
|---|
| 1015 | image files below it.
|
|---|
| 1016 | </p>
|
|---|
| 1017 |
|
|---|
| 1018 |
|
|---|
| 1019 | <a name="selectorselect"></a>
|
|---|
| 1020 | <h4>Selector Reference</h4>
|
|---|
| 1021 |
|
|---|
| 1022 | <p>The <code><selector></code> tag is used to create selectors
|
|---|
| 1023 | that can be reused through references. It is the only selector which can
|
|---|
| 1024 | be used outside of
|
|---|
| 1025 | any target, as an element of the <code><project></code> tag. It
|
|---|
| 1026 | can contain only one other selector, but of course that selector can
|
|---|
| 1027 | be a container.
|
|---|
| 1028 | </p>
|
|---|
| 1029 |
|
|---|
| 1030 | <p>The <code><selector></code> tag can also be used to select
|
|---|
| 1031 | files conditionally based on whether an Ant property exists or not.
|
|---|
| 1032 | This functionality is realized using the <code>"if"</code> and
|
|---|
| 1033 | <code>"unless"</code> attributes in exactly the same way they
|
|---|
| 1034 | are used on targets or on the <code><include></code> and
|
|---|
| 1035 | <code><exclude></code> tags within a
|
|---|
| 1036 | <code><patternset></code>.</p>
|
|---|
| 1037 |
|
|---|
| 1038 | <table border="1" cellpadding="2" cellspacing="0">
|
|---|
| 1039 | <tr>
|
|---|
| 1040 | <td valign="top"><b>Attribute</b></td>
|
|---|
| 1041 | <td valign="top"><b>Description</b></td>
|
|---|
| 1042 | <td align="center" valign="top"><b>Required</b></td>
|
|---|
| 1043 | </tr>
|
|---|
| 1044 | <tr>
|
|---|
| 1045 | <td valign="top">if</td>
|
|---|
| 1046 | <td valign="top">Allow files to be selected only if the named
|
|---|
| 1047 | property is set.
|
|---|
| 1048 | </td>
|
|---|
| 1049 | <td valign="top" align="center">No</td>
|
|---|
| 1050 | </tr>
|
|---|
| 1051 | <tr>
|
|---|
| 1052 | <td valign="top">unless</td>
|
|---|
| 1053 | <td valign="top">Allow files to be selected only if the named
|
|---|
| 1054 | property is <b>not</b> set.
|
|---|
| 1055 | </td>
|
|---|
| 1056 | <td valign="top" align="center">No</td>
|
|---|
| 1057 | </tr>
|
|---|
| 1058 | </table>
|
|---|
| 1059 |
|
|---|
| 1060 | <p>Here is an example of how to use the Selector Reference:</p>
|
|---|
| 1061 |
|
|---|
| 1062 | <blockquote><pre>
|
|---|
| 1063 | <project default="all" basedir="./ant">
|
|---|
| 1064 |
|
|---|
| 1065 | <selector id="completed">
|
|---|
| 1066 | <none>
|
|---|
| 1067 | <depend targetdir="build/classes">
|
|---|
| 1068 | <mapper type="glob" from="*.java" to="*.class"/>
|
|---|
| 1069 | </depend>
|
|---|
| 1070 | <depend targetdir="docs/manual/api">
|
|---|
| 1071 | <mapper type="glob" from="*.java" to="*.html"/>
|
|---|
| 1072 | </depend>
|
|---|
| 1073 | </none>
|
|---|
| 1074 | </selector>
|
|---|
| 1075 |
|
|---|
| 1076 | <target>
|
|---|
| 1077 | <zip>
|
|---|
| 1078 | <fileset dir="src/main" includes="**/*.java">
|
|---|
| 1079 | <selector refid="completed"/>
|
|---|
| 1080 | </fileset>
|
|---|
| 1081 | </zip>
|
|---|
| 1082 | </target>
|
|---|
| 1083 |
|
|---|
| 1084 | </project>
|
|---|
| 1085 | </pre></blockquote>
|
|---|
| 1086 |
|
|---|
| 1087 | <p>Zips up all the Java files which have an up-to-date equivalent
|
|---|
| 1088 | class file and javadoc file associated with them.
|
|---|
| 1089 | </p>
|
|---|
| 1090 |
|
|---|
| 1091 | <p>And an example of selecting files conditionally, based on whether
|
|---|
| 1092 | properties are set:</p>
|
|---|
| 1093 |
|
|---|
| 1094 | <blockquote><pre>
|
|---|
| 1095 | <fileset dir="${working.copy}">
|
|---|
| 1096 | <or>
|
|---|
| 1097 | <selector if="include.tests">
|
|---|
| 1098 | <filename name="**/*Test.class">
|
|---|
| 1099 | </selector>
|
|---|
| 1100 | <selector if="include.source">
|
|---|
| 1101 | <and>
|
|---|
| 1102 | <filename name="**/*.java">
|
|---|
| 1103 | <not>
|
|---|
| 1104 | <selector unless="include.tests">
|
|---|
| 1105 | <filename name="**/*Test.java">
|
|---|
| 1106 | </selector>
|
|---|
| 1107 | </not>
|
|---|
| 1108 | </and>
|
|---|
| 1109 | </selector>
|
|---|
| 1110 | </or>
|
|---|
| 1111 | </fileset>
|
|---|
| 1112 | </pre></blockquote>
|
|---|
| 1113 |
|
|---|
| 1114 | <p>A fileset that conditionally contains Java source files and Test
|
|---|
| 1115 | source and class files.</p>
|
|---|
| 1116 |
|
|---|
| 1117 | <a name="customselect"></a>
|
|---|
| 1118 | <h3>Custom Selectors</h3>
|
|---|
| 1119 |
|
|---|
| 1120 | <p>You can write your own selectors and use them within the selector
|
|---|
| 1121 | containers by specifying them within the <custom> tag.</p>
|
|---|
| 1122 |
|
|---|
| 1123 | <p>First, you have to write your selector class in Java. The only
|
|---|
| 1124 | requirement it must meet in order to be a selector is that it implements
|
|---|
| 1125 | the <code>org.apache.tools.ant.types.selectors.FileSelector</code>
|
|---|
| 1126 | interface, which contains a single method. See
|
|---|
| 1127 | <a href="selectors-program.html">Programming Selectors in Ant</a> for
|
|---|
| 1128 | more information.</p>
|
|---|
| 1129 |
|
|---|
| 1130 | <p>Once that is written, you include it in your build file by using
|
|---|
| 1131 | the <code><custom></code> tag.
|
|---|
| 1132 | </p>
|
|---|
| 1133 |
|
|---|
| 1134 | <table border="1" cellpadding="2" cellspacing="0">
|
|---|
| 1135 | <tr>
|
|---|
| 1136 | <td valign="top"><b>Attribute</b></td>
|
|---|
| 1137 | <td valign="top"><b>Description</b></td>
|
|---|
| 1138 | <td align="center" valign="top"><b>Required</b></td>
|
|---|
| 1139 | </tr>
|
|---|
| 1140 | <tr>
|
|---|
| 1141 | <td valign="top">classname</td>
|
|---|
| 1142 | <td valign="top">The name of your class that implements
|
|---|
| 1143 | <code>org.apache.tools.ant.types.selectors.FileSelector</code>.
|
|---|
| 1144 | </td>
|
|---|
| 1145 | <td valign="top" align="center">Yes</td>
|
|---|
| 1146 | </tr>
|
|---|
| 1147 | <tr>
|
|---|
| 1148 | <td valign="top">classpath</td>
|
|---|
| 1149 | <td valign="top">The classpath to use in order to load the
|
|---|
| 1150 | custom selector class. If neither this classpath nor the
|
|---|
| 1151 | classpathref are specified, the class will be
|
|---|
| 1152 | loaded from the classpath that Ant uses.
|
|---|
| 1153 | </td>
|
|---|
| 1154 | <td valign="top" align="center">No</td>
|
|---|
| 1155 | </tr>
|
|---|
| 1156 | <tr>
|
|---|
| 1157 | <td valign="top">classpathref</td>
|
|---|
| 1158 | <td valign="top">A reference to a classpath previously
|
|---|
| 1159 | defined. If neither this reference nor the
|
|---|
| 1160 | classpath above are specified, the class will be
|
|---|
| 1161 | loaded from the classpath that Ant uses.
|
|---|
| 1162 | </td>
|
|---|
| 1163 | <td valign="top" align="center">No</td>
|
|---|
| 1164 | </tr>
|
|---|
| 1165 | </table>
|
|---|
| 1166 |
|
|---|
| 1167 | <p>Here is how you use <code><custom></code> to
|
|---|
| 1168 | use your class as a selector:
|
|---|
| 1169 | </p>
|
|---|
| 1170 |
|
|---|
| 1171 | <blockquote><pre>
|
|---|
| 1172 | <fileset dir="${mydir}" includes="**/*">
|
|---|
| 1173 | <custom classname="com.mydomain.MySelector">
|
|---|
| 1174 | <param name="myattribute" value="myvalue"/>
|
|---|
| 1175 | </custom>
|
|---|
| 1176 | </fileset>
|
|---|
| 1177 | </pre></blockquote>
|
|---|
| 1178 |
|
|---|
| 1179 | <p>A number of core selectors can also be used as custom selectors
|
|---|
| 1180 | by specifying their attributes using <param> elements. These
|
|---|
| 1181 | are</p>
|
|---|
| 1182 |
|
|---|
| 1183 | <ul>
|
|---|
| 1184 | <li><a href="#containsselect">Contains Selector</a> with
|
|---|
| 1185 | classname <code>org.apache.tools.ant.types.selectors.ContainsSelector</code>
|
|---|
| 1186 | <li><a href="#dateselect">Date Selector</a> with
|
|---|
| 1187 | classname <code>org.apache.tools.ant.types.selectors.DateSelector</code>
|
|---|
| 1188 | <li><a href="#depthselect">Depth Selector</a> with
|
|---|
| 1189 | classname <code>org.apache.tools.ant.types.selectors.DepthSelector</code>
|
|---|
| 1190 | <li><a href="#filenameselect">Filename Selector</a> with
|
|---|
| 1191 | classname <code>org.apache.tools.ant.types.selectors.FilenameSelector</code>
|
|---|
| 1192 | <li><a href="#sizeselect">Size Selector</a> with
|
|---|
| 1193 | classname <code>org.apache.tools.ant.types.selectors.SizeSelector</code>
|
|---|
| 1194 | </ul>
|
|---|
| 1195 |
|
|---|
| 1196 | <p>Here is the example from the Depth Selector section rewritten
|
|---|
| 1197 | to use the selector through <code><custom></code>.</p>
|
|---|
| 1198 |
|
|---|
| 1199 | <blockquote><pre>
|
|---|
| 1200 | <fileset dir="${doc.path}" includes="**/*">
|
|---|
| 1201 | <custom classname="org.apache.tools.ant.types.selectors.DepthSelector">
|
|---|
| 1202 | <param name="max" value="1"/>
|
|---|
| 1203 | </custom>
|
|---|
| 1204 | </fileset>
|
|---|
| 1205 | </pre></blockquote>
|
|---|
| 1206 |
|
|---|
| 1207 | <p>Selects all files in the base directory and one directory below
|
|---|
| 1208 | that.</p>
|
|---|
| 1209 |
|
|---|
| 1210 | <p>For more details concerning writing your own selectors, consult
|
|---|
| 1211 | <a href="selectors-program.html">Programming Selectors in Ant</a>.</p>
|
|---|
| 1212 |
|
|---|
| 1213 | <hr>
|
|---|
| 1214 | <p align="center">Copyright © 2002-2004 The Apache Software
|
|---|
| 1215 | Foundation. All rights Reserved.</p>
|
|---|
| 1216 |
|
|---|
| 1217 | </body>
|
|---|
| 1218 |
|
|---|
| 1219 | </html>
|
|---|
