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Posted to commits@xalan.apache.org by dl...@apache.org on 2001/03/20 17:59:51 UTC
cvs commit: xml-xalan/java/xdocs/sources/xalan samples.xml usagepatterns.xml
dleslie 01/03/20 08:59:50
Modified: java/xdocs/sources/xalan samples.xml usagepatterns.xml
Log:
Added UseStylesheetParamServlet, submitted by
Paul Campbell <se...@halcyon.com>.
Revision Changes Path
1.27 +37 -13 xml-xalan/java/xdocs/sources/xalan/samples.xml
Index: samples.xml
===================================================================
RCS file: /home/cvs/xml-xalan/java/xdocs/sources/xalan/samples.xml,v
retrieving revision 1.26
retrieving revision 1.27
diff -u -r1.26 -r1.27
--- samples.xml 2001/02/22 21:44:55 1.26
+++ samples.xml 2001/03/20 16:59:45 1.27
@@ -182,20 +182,22 @@
</s2><anchor name="servlet"/>
<s2 title="servlet">
<p>For a general introduction, see <link idref="usagepatterns" anchor="servlet">Using &xslt4j; in a servlet</link>.</p>
- <p>The servlet subdirectory contains three sample servlets that use &xslt4j; to perform transformations. These servlets are in a package
- named servlet and are compiled in
- xalanservlet.jar. To run these samples, you must place xalanservlet.jar, and any XML and XSL files you want to use
- on a web server with a servlet engine, place xalanservlet.jar on the servlet engine class path, and configure the servlet engine to
+ <p>The servlet subdirectory contains four sample servlets that use &xslt4j; to perform transformations. These servlets
+ are in a package named servlet and are compiled in xalanservlet.jar. To run these samples, you must place
+ xalanservlet.jar, and any XML and XSL files you want to use on a web server with a servlet engine, place
+ xalanservlet.jar, xalan.jar, and xerces.jar on the servlet engine class path, and configure the servlet engine to
locate the XML and XSL files, and the properties file used by ApplyXSL.</p>
- <p>SimplestXSLTServlet applies a particular stylesheet to a particular XML document. XSLTServletWithParams accepts parameters for
- stylesheet, XML document, and stylesheet parameters. ApplyXSLT (and associated classes) is much closer
- to a production level servlet. It accepts parameters, provides a listener for capturing and reporting debugger messages, and supports
- use of a property file to determine which stylesheet to apply based on the identity of the client browser/device.</p>
- <ul>
- <li><link anchor="simplexsltservlet">servlet.SimpleXSLTServlet</link></li>
- <li><link anchor="xsltservletwithparams">servlet.XSLTServletWithParams</link></li>
- <li><link anchor="applyxslt">servlet.ApplyXSLT</link></li>
- </ul><anchor name="simplexsltservlet"/>
+ <p><link anchor="simplexsltservlet">servlet.SimpleXSLTServlet</link> applies a particular stylesheet to a particular
+ XML document.</p>
+ <p><link anchor="usestylesheetparamservlet">servlet.UseStylesheetParamServlet</link> sets a stylesheet parameter
+ (the parameter name is hardwired into the servlet), and requires the user to supply parameters for the
+ XML document and XSL stylesheet.</p>
+ <p><link anchor="xsltservletwithparams">servlet.XSLTServletWithParams</link> accepts parameters for the XML document,
+ the XSL stylesheet, and any number of stylesheet parameters.</p>
+ <p><link anchor="applyxslt">servlet.ApplyXSLT</link> (and associated classes) is closer to a production level servlet. It accepts parameters, provides a
+ listener for capturing and reporting debugger messages, and supports use of a property file to determine which
+ stylesheet to apply based on the identity of the client browser/device.</p>
+ <anchor name="simplexsltservlet"/>
<s3 title="servlet.SimpleXSLTServlet">
<p>What it does: servlet.SimpleXSLTServlet applies the todo.xsl stylesheet to todo.xml and returns the transformation result to the
HTTP client.</p>
@@ -203,6 +205,28 @@
looks for HTTP documents, place xalanservlet.jar on the servlet engine classpath, and set up an HTML page to call the servlet as
follows:</p>
<gloss><label>http://localhost/servlethome/servlet.SimpleXSLTServlet</label></gloss>
+ </s3><anchor name="usestylesheetparamservlet"/>
+ <s3 title="servlet.UseStylesheetParamServlet">
+ <note>Paul Campbell <seapwc@halcyon.com> wrote this servlet and the following explanatory text.
+ Thank you, Paul!</note>
+ <p>What it does: The client (perhaps an HTML form ) specifies an XML document, a stylesheet, and a value to be passed
+ to the stylesheet for a stylesheet parameter named "param1". The servlet performs the transformation and returns
+ the output to the client. The client must specify which stylesheet (containing a "param1" stylesheet parameter")
+ and XML file are to be used.</p>
+ <p>How to run it: Configure your application server (Tomcat, Websphere or JServ, for example)
+ so it can find servlet.UseStylesheetParamServlet (in xalanservlet.jar) as well as the XML document
+ and XSL stylesheet. For example, you can copy fooparam.xml and fooparam.xsl from samples/servlet to the application
+ server root directory for documents.</p>
+ <p>Then you can set up an HTML client to call the servlet with arguments along the lines of</p>
+ <gloss><label>http://localhost/servlethome/servlet.UseStylesheetParamServlet?
+ XML=fooparam.xml&XSL=fooparam.xsl&PVAL=GoodBye</label></gloss>
+ <p>In the doGet() method, the servlet obtains the PVAL value "GoodBye") from the servlet request and passes it to the
+ stylesheet as the paramValue argument in a Transformer setParameter() call:</p>
+ <p><code>String paramValue = httpServletRequest.getParameter("PVAL");</code><br/>
+ <code>...</code><br/>
+ <code>transformer.setParameter("param1", paramValue);</code></p>
+ <p>The result is returned to the client:</p>
+<p><code><html><body><p>GoodBye</p></body></html></code></p>
</s3><anchor name="xsltservletwithparams"/>
<s3 title="servlet.XSLTServletWithParams">
<p>What it does: servlet.XSLTServletWithParams takes parameters in the request -- a URL parameter for
1.31 +2 -1 xml-xalan/java/xdocs/sources/xalan/usagepatterns.xml
Index: usagepatterns.xml
===================================================================
RCS file: /home/cvs/xml-xalan/java/xdocs/sources/xalan/usagepatterns.xml,v
retrieving revision 1.30
retrieving revision 1.31
diff -u -r1.30 -r1.31
--- usagepatterns.xml 2001/03/14 20:07:22 1.30
+++ usagepatterns.xml 2001/03/20 16:59:46 1.31
@@ -406,7 +406,8 @@
}
}</source>
<p>For a working sample, see <link idref="samples" anchor="simplexsltservlet">SimpleXSLTServlet</link>.</p>
-<p>In the preceding example, the URLs for the XML document and XSL stylesheet are hardcoded in the servlet. You can also create a servlet that parses the request URL for input parameters specifying the XML document, XSL stylesheet, and any relevant stylesheet parameters. For a sample, see <link idref="samples" anchor="xsltservletwithparams">XSLTServletWithParams</link>. For a more robust and complex sample that also employs a properties file to determine which stylesheet to use depending on the client browser/device, see <link idref="samples" anchor="applyxslt">ApplyXSLT</link>.</p>
+<p>In the preceding example, the URLs for the XML document and XSL stylesheet are hardcoded in the servlet. You can also create a servlet that parses the request URL for input parameters specifying the XML document, XSL stylesheet, and any relevant stylesheet parameters. For samples, see <link idref="samples"
+anchor="usestylesheetparamservlet">UseStylesheetParamServlet</link> and <link idref="samples" anchor="xsltservletwithparams">XSLTServletWithParams</link>. For a more robust and complex sample that also employs a properties file to determine which stylesheet to use depending on the client browser/device, see <link idref="samples" anchor="applyxslt">ApplyXSLT</link>.</p>
</s2><anchor name="extensions"/>
<s2 title="Creating and using extensions">
<p>For those cases where you want to be able to call procedural code from within a stylesheet, the &xslt4j; Extensions facility supports the creation of extension elements and extension functions. See <link idref="extensions">Extensions</link> and <link idref="samples" anchor="extensions">Extensions samples</link>.</p>
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