| <!-- |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| --> |
| |
| <html> |
| <head> |
| <meta http-equiv="Content-Language" content="en-us"> |
| <link rel="stylesheet" type="text/css" href="../stylesheets/style.css"> |
| <title>Whichresource Task</title> |
| </link> |
| </meta> |
| </head> |
| |
| |
| <body> |
| <h2><a name="whichresource">Whichresource</a></h2> |
| <h3>Description</h3> |
| <p> |
| Find a class or resource on the supplied classpath, or the |
| system classpath if none is supplied. |
| The named property is set if the item can be found. |
| For example: |
| </p> |
| <blockquote><pre> |
| <whichresource resource="/log4j.properties" property="log4j.url" > |
| </pre></blockquote> |
| <h3>Parameters</h3> |
| <table border="1" cellpadding="2" cellspacing="0"> |
| <tr> |
| <td valign="top"><b>Attribute</b></td> |
| <td valign="top"><b>Description</b></td> |
| <td align="center" valign="top"><b>Required</b></td> |
| </tr> |
| <tr> |
| <td valign="top">property</td> |
| <td valign="top"> |
| The property to fill with the URL of the resource of class. |
| </td> |
| <td valign="top" align="center">Yes</td> |
| </tr> |
| <tr> |
| <td valign="top">class</td> |
| <td valign="top"> |
| The name of the class to look for. |
| </td> |
| <td valign="top" align="center" rowspan="2">Exactly one of these.</td> |
| </tr> |
| <tr> |
| <td valign="top">resource</td> |
| <td valign="top"> |
| The name of the resource to look for. |
| </td> |
| </tr> |
| <tr> |
| <td valign="top">classpath</td> |
| <td valign="top"> |
| The classpath to use when looking up <code>class</code> |
| or <code>resource</code>. |
| </td> |
| <td align="center" valign="top">No</td> |
| </tr> |
| <tr> |
| <td valign="top">classpathref</td> |
| <td valign="top"> |
| The classpath to use, given as a |
| <a href="../using.html#references">reference</a> |
| to a path defined elsewhere. |
| <em>Since Ant 1.7.1.</em> |
| </td> |
| <td align="center" valign="top">No</td> |
| </tr> |
| </table> |
| <h3>Parameters specified as nested elements</h3> |
| <h4>classpath</h4> |
| <p> |
| <code>Whichresource</code>'s <code>classpath</code> attribute is a |
| <a href="../using.html#path">path-like structure</a> and can also be |
| set via a nested <code><classpath></code> element. |
| </p> |
| <h3>Examples</h3> |
| <p> |
| The following shows using a classpath reference. |
| </p> |
| <blockquote><pre> |
| <path id="bsf.classpath"> |
| <fileset dir="${user.home}/lang/bsf" includes="*.jar"/> |
| </path> |
| <whichresource property="bsf.class.location" |
| class="org.apache.bsf.BSFManager" |
| classpathref="bsf.classpath"/> |
| <echo>${bsf.class.location}</echo> |
| </pre></blockquote> |
| <p> |
| The following shows using a nested classpath. |
| </p> |
| <blockquote><pre> |
| <whichresource |
| property="ant-contrib.antlib.location" |
| resource="net/sf/antcontrib/antlib.xml"> |
| <classpath> |
| <path path="f:/testing/ant-contrib/target/ant-contrib.jar"/> |
| </classpath> |
| </whichresource> |
| <echo>${ant-contrib.antlib.location}</echo> |
| </pre></blockquote> |
| </body> |
| </html> |
