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| author |   Ashlee Young <ashlee@onosfw.com> | 2015-10-23 10:00:02 -0700 |
|---|---|---|
| committer | Ashlee Young <ashlee@onosfw.com> | 2015-10-23 10:00:02 -0700 |
| commit | 753a6c60f47f3ac4f270005b65e9d6481de8eb68 (patch) | |
| tree | 3d0a1ae3b4d994550f6614b417b991eee3eb8911 /framework/src/ant/apache-ant-1.9.6/manual/argumentprocessor.html | |
| parent | c62d20eb3b4620c06d833be06f50b2600d96dd42 (diff) | |
Adding maven and ant source trees
Change-Id: I0a39b9add833a31b9c3f98d193983ae2f3a5a445
Signed-off-by: Ashlee Young <ashlee@onosfw.com>
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/manual/argumentprocessor.html')
| -rw-r--r-- | framework/src/ant/apache-ant-1.9.6/manual/argumentprocessor.html | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/manual/argumentprocessor.html b/framework/src/ant/apache-ant-1.9.6/manual/argumentprocessor.html new file mode 100644 index 00000000..2cd5202f --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/manual/argumentprocessor.html @@ -0,0 +1,76 @@ +<!-- + 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>The Command Line Processor Plugin: ArgumentProcessor</title> +</head> + +<body> +<h1>The Command Line Processor Plugin: ArgumentProcessor</h1> + +<h2><a name="definition">What is an ArgumentProcessor?</a></h2> + +<p> +An <code>ArgumentProcessor</code> is a parser of command line argument which is +then call before and after the build file is being parsed. Third party +libraries may then be able to have custom argument line argument which modify +Ant behaviour. +</p> + +<p> +An <code>ArgumentProcessor</code> is called each time Ant parse an unknown +argument, an <code>ArgumentProcessor</code> doesn't take precedence over Ant to +parse already suported options. It is then recommended to third party +<code>ArgumentProcessor</code> implementation to chose specific 'enough' +argument name, avoiding for instance one letter arguments. +</p> + +<p> +It is also called at the different phases so different behaviour can be +implemented. It is called just after every arguments are parsed, just +before the project is being configured (the build file being parsed), +and just after. Some of the methods to be implemented return a boolean: +if <code>true</code> is returned, Ant will terminate immediately, without +error. +</p> + +<p> +Being called during all these phases, an <code>ArgumentProcessor</code> +can just print some specific system properties and quit (like +<code>-diagnose</code>), or print some specific properties of a project after +being parsed and quit (like <code>-projectHelp</code>), or just set some +custom properties on the project and let it run. +</p> + +<h2><a name="repository">How to register it's own ArgumentProcessor</a></h2> + +<p>First, the <code>ArgumentProcessor</code> must be an implementation of +<code>org.apache.tools.ant.ArgumentProcessor</code>. +</p> + +<p>Then to decare it: create a file +<code>META-INF/services/org.apache.tools.ant.ArgumentProcessor</code> which +contains only one line the fully qualified name of the class of the +implementation. This file together with the implementation class need then to +be found in Ant's classpath. +</p> +</body> +</html> + |