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| <FONT color="green">001</FONT> /*<a name="line.1"></a> |
| <FONT color="green">002</FONT> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <FONT color="green">003</FONT> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <FONT color="green">004</FONT> * distributed with this work for additional information<a name="line.4"></a> |
| <FONT color="green">005</FONT> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <FONT color="green">006</FONT> * to you under the Apache License, Version 2.0 (the "License");<a name="line.6"></a> |
| <FONT color="green">007</FONT> * you may not use this file except in compliance with the License.<a name="line.7"></a> |
| <FONT color="green">008</FONT> * You may obtain a copy of the License at<a name="line.8"></a> |
| <FONT color="green">009</FONT> *<a name="line.9"></a> |
| <FONT color="green">010</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <FONT color="green">011</FONT> *<a name="line.11"></a> |
| <FONT color="green">012</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <FONT color="green">013</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <FONT color="green">014</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <FONT color="green">015</FONT> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <FONT color="green">016</FONT> * limitations under the License.<a name="line.16"></a> |
| <FONT color="green">017</FONT> */<a name="line.17"></a> |
| <FONT color="green">018</FONT> /*<a name="line.18"></a> |
| <FONT color="green">019</FONT> * $Id: ExtensionNamespaceSupport.java 468637 2006-10-28 06:51:02Z minchau $<a name="line.19"></a> |
| <FONT color="green">020</FONT> */<a name="line.20"></a> |
| <FONT color="green">021</FONT> package org.apache.xalan.extensions;<a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> import java.lang.reflect.Constructor;<a name="line.23"></a> |
| <FONT color="green">024</FONT> <a name="line.24"></a> |
| <FONT color="green">025</FONT> import javax.xml.transform.TransformerException;<a name="line.25"></a> |
| <FONT color="green">026</FONT> <a name="line.26"></a> |
| <FONT color="green">027</FONT> /**<a name="line.27"></a> |
| <FONT color="green">028</FONT> * During styleseet composition, an ExtensionNamespaceSupport object is created for each extension <a name="line.28"></a> |
| <FONT color="green">029</FONT> * namespace the stylesheet uses. At the beginning of a transformation, TransformerImpl generates<a name="line.29"></a> |
| <FONT color="green">030</FONT> * an ExtensionHandler for each of these objects and adds an entry to the ExtensionsTable hashtable.<a name="line.30"></a> |
| <FONT color="green">031</FONT> */<a name="line.31"></a> |
| <FONT color="green">032</FONT> public class ExtensionNamespaceSupport<a name="line.32"></a> |
| <FONT color="green">033</FONT> {<a name="line.33"></a> |
| <FONT color="green">034</FONT> // Namespace, ExtensionHandler class name, constructor signature <a name="line.34"></a> |
| <FONT color="green">035</FONT> // and arguments.<a name="line.35"></a> |
| <FONT color="green">036</FONT> String m_namespace = null;<a name="line.36"></a> |
| <FONT color="green">037</FONT> String m_handlerClass = null;<a name="line.37"></a> |
| <FONT color="green">038</FONT> Class [] m_sig = null; <a name="line.38"></a> |
| <FONT color="green">039</FONT> Object [] m_args = null;<a name="line.39"></a> |
| <FONT color="green">040</FONT> <a name="line.40"></a> |
| <FONT color="green">041</FONT> public ExtensionNamespaceSupport(String namespace, <a name="line.41"></a> |
| <FONT color="green">042</FONT> String handlerClass, <a name="line.42"></a> |
| <FONT color="green">043</FONT> Object[] constructorArgs)<a name="line.43"></a> |
| <FONT color="green">044</FONT> {<a name="line.44"></a> |
| <FONT color="green">045</FONT> m_namespace = namespace;<a name="line.45"></a> |
| <FONT color="green">046</FONT> m_handlerClass = handlerClass;<a name="line.46"></a> |
| <FONT color="green">047</FONT> m_args = constructorArgs;<a name="line.47"></a> |
| <FONT color="green">048</FONT> // Create the constructor signature.<a name="line.48"></a> |
| <FONT color="green">049</FONT> m_sig = new Class[m_args.length];<a name="line.49"></a> |
| <FONT color="green">050</FONT> for (int i = 0; i < m_args.length; i++)<a name="line.50"></a> |
| <FONT color="green">051</FONT> {<a name="line.51"></a> |
| <FONT color="green">052</FONT> if (m_args[i] != null)<a name="line.52"></a> |
| <FONT color="green">053</FONT> m_sig[i] = m_args[i].getClass();//System.out.println("arg class " + i + " " +m_sig[i]);<a name="line.53"></a> |
| <FONT color="green">054</FONT> else // If an arguments is null, pick the constructor later.<a name="line.54"></a> |
| <FONT color="green">055</FONT> {<a name="line.55"></a> |
| <FONT color="green">056</FONT> m_sig = null;<a name="line.56"></a> |
| <FONT color="green">057</FONT> break;<a name="line.57"></a> |
| <FONT color="green">058</FONT> }<a name="line.58"></a> |
| <FONT color="green">059</FONT> }<a name="line.59"></a> |
| <FONT color="green">060</FONT> }<a name="line.60"></a> |
| <FONT color="green">061</FONT> <a name="line.61"></a> |
| <FONT color="green">062</FONT> public String getNamespace()<a name="line.62"></a> |
| <FONT color="green">063</FONT> {<a name="line.63"></a> |
| <FONT color="green">064</FONT> return m_namespace;<a name="line.64"></a> |
| <FONT color="green">065</FONT> }<a name="line.65"></a> |
| <FONT color="green">066</FONT> <a name="line.66"></a> |
| <FONT color="green">067</FONT> /**<a name="line.67"></a> |
| <FONT color="green">068</FONT> * Launch the ExtensionHandler that this ExtensionNamespaceSupport object defines.<a name="line.68"></a> |
| <FONT color="green">069</FONT> */<a name="line.69"></a> |
| <FONT color="green">070</FONT> public ExtensionHandler launch()<a name="line.70"></a> |
| <FONT color="green">071</FONT> throws TransformerException<a name="line.71"></a> |
| <FONT color="green">072</FONT> {<a name="line.72"></a> |
| <FONT color="green">073</FONT> ExtensionHandler handler = null;<a name="line.73"></a> |
| <FONT color="green">074</FONT> try<a name="line.74"></a> |
| <FONT color="green">075</FONT> {<a name="line.75"></a> |
| <FONT color="green">076</FONT> Class cl = ExtensionHandler.getClassForName(m_handlerClass);<a name="line.76"></a> |
| <FONT color="green">077</FONT> Constructor con = null;<a name="line.77"></a> |
| <FONT color="green">078</FONT> //System.out.println("class " + cl + " " + m_args + " " + m_args.length + " " + m_sig);<a name="line.78"></a> |
| <FONT color="green">079</FONT> if (m_sig != null)<a name="line.79"></a> |
| <FONT color="green">080</FONT> con = cl.getConstructor(m_sig);<a name="line.80"></a> |
| <FONT color="green">081</FONT> else // Pick the constructor based on number of args.<a name="line.81"></a> |
| <FONT color="green">082</FONT> {<a name="line.82"></a> |
| <FONT color="green">083</FONT> Constructor[] cons = cl.getConstructors();<a name="line.83"></a> |
| <FONT color="green">084</FONT> for (int i = 0; i < cons.length; i ++)<a name="line.84"></a> |
| <FONT color="green">085</FONT> {<a name="line.85"></a> |
| <FONT color="green">086</FONT> if (cons[i].getParameterTypes().length == m_args.length)<a name="line.86"></a> |
| <FONT color="green">087</FONT> {<a name="line.87"></a> |
| <FONT color="green">088</FONT> con = cons[i];<a name="line.88"></a> |
| <FONT color="green">089</FONT> break;<a name="line.89"></a> |
| <FONT color="green">090</FONT> }<a name="line.90"></a> |
| <FONT color="green">091</FONT> }<a name="line.91"></a> |
| <FONT color="green">092</FONT> }<a name="line.92"></a> |
| <FONT color="green">093</FONT> // System.out.println("constructor " + con);<a name="line.93"></a> |
| <FONT color="green">094</FONT> if (con != null)<a name="line.94"></a> |
| <FONT color="green">095</FONT> handler = (ExtensionHandler)con.newInstance(m_args);<a name="line.95"></a> |
| <FONT color="green">096</FONT> else<a name="line.96"></a> |
| <FONT color="green">097</FONT> throw new TransformerException("ExtensionHandler constructor not found");<a name="line.97"></a> |
| <FONT color="green">098</FONT> }<a name="line.98"></a> |
| <FONT color="green">099</FONT> catch (Exception e)<a name="line.99"></a> |
| <FONT color="green">100</FONT> {<a name="line.100"></a> |
| <FONT color="green">101</FONT> throw new TransformerException(e);<a name="line.101"></a> |
| <FONT color="green">102</FONT> }<a name="line.102"></a> |
| <FONT color="green">103</FONT> return handler;<a name="line.103"></a> |
| <FONT color="green">104</FONT> }<a name="line.104"></a> |
| <FONT color="green">105</FONT> <a name="line.105"></a> |
| <FONT color="green">106</FONT> }<a name="line.106"></a> |
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| </PRE> |
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