coliver 2003/06/22 11:48:20
Modified: src/scratchpad/webapp/samples scratchpad-samples.xml
Added: src/scratchpad/lib apache-garbage-0.0.jar
src/scratchpad/src/org/apache/cocoon/generation
GarbageGenerator.java
src/scratchpad/webapp/samples/garbage sitemap.xmap
src/scratchpad/webapp/samples/garbage/calc calc.js
sitemap.xmap
src/scratchpad/webapp/samples/garbage/calc/screens
displayResult.gt getNumberA.gt getNumberB.gt
getOperator.gt
Log:
Added GarbageGenerator and sample
Revision Changes Path
1.1 cocoon-2.1/src/scratchpad/lib/apache-garbage-0.0.jar
<<Binary file>>
1.1
cocoon-2.1/src/scratchpad/src/org/apache/cocoon/generation/GarbageGenerator.java
Index: GarbageGenerator.java
===================================================================
/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "Apache Cocoon" and "Apache Software Foundation" must not be
used to endorse or promote products derived from this software without
prior written permission. For written permission, please contact
[EMAIL PROTECTED]
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
Stefano Mazzocchi <[EMAIL PROTECTED]>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.cocoon.generation;
import org.apache.avalon.framework.parameters.Parameters;
import org.apache.cocoon.ProcessingException;
import org.apache.cocoon.components.flow.FlowHelper;
import org.apache.cocoon.components.flow.WebContinuation;
import org.apache.cocoon.components.flow.javascript.JavaScriptFlow;
import org.apache.cocoon.components.source.SourceUtil;
import org.apache.cocoon.environment.ObjectModelHelper;
import org.apache.cocoon.environment.Request;
import org.apache.cocoon.environment.Response;
import org.apache.cocoon.environment.SourceResolver;
import org.apache.cocoon.transformation.AbstractTransformer;
import org.apache.cocoon.xml.XMLConsumer;
import org.apache.commons.jxpath.JXPathContext;
import org.apache.commons.jxpath.Variables;
import org.apache.garbage.parser.Parser;
import org.apache.garbage.tree.Tree;
import org.apache.garbage.tree.TreeException;
import org.apache.garbage.Processor;
import org.apache.garbage.Processor;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import java.util.Map;
import java.util.HashMap;
import java.io.IOException;
import org.apache.cocoon.ProcessingException;
import org.apache.excalibur.source.Source;
import org.apache.excalibur.source.SourceException;
public class GarbageGenerator extends ComposerGenerator {
private XMLConsumer consumer;
private JXPathContext jxpathContext;
private static Map cache = new HashMap();
private Source source;
public void recycle() {
super.recycle();
consumer = null;
jxpathContext = null;
source = null;
}
private static class CacheEntry {
Tree tree;
long compileTime;
}
public void setup(SourceResolver resolver, Map objectModel,
String src, Parameters parameters)
throws ProcessingException, SAXException, IOException {
super.setup(resolver, objectModel, src, parameters);
if (src != null) {
try {
this.source = resolver.resolveURI(src);
} catch (SourceException se) {
throw SourceUtil.handle("Error during resolving of '" + src + "'.",
se);
}
long lastMod = source.getLastModified();
String uri = source.getURI();
synchronized (cache) {
CacheEntry t = (CacheEntry)cache.get(uri);
if (t != null &&
lastMod > t.compileTime) {
cache.remove(uri);
}
}
}
Object bean = FlowHelper.getContextObject(objectModel);
WebContinuation kont = FlowHelper.getWebContinuation(objectModel);
setContext(bean, kont,
ObjectModelHelper.getRequest(objectModel),
ObjectModelHelper.getResponse(objectModel),
ObjectModelHelper.getContext(objectModel),
parameters);
}
private void setContext(Object contextObject,
WebContinuation kont,
Request request,
Response response,
org.apache.cocoon.environment.Context app,
Parameters parameters) {
jxpathContext = JXPathContext.newContext(contextObject);
Variables varScope = jxpathContext.getVariables();
varScope.declareVariable("flowContext", contextObject);
varScope.declareVariable("continuation", kont);
varScope.declareVariable("request", request);
varScope.declareVariable("response", response);
varScope.declareVariable("context", app);
varScope.declareVariable("parameters", parameters);
varScope.declareVariable("session", request.getSession(false));
jxpathContext.setVariables(varScope);
}
public void setConsumer(XMLConsumer consumer) {
this.consumer = consumer;
}
public void generate()
throws IOException, SAXException, ProcessingException {
try {
CacheEntry t;
synchronized (cache) {
t = (CacheEntry)cache.get(source.getURI());
}
if (t == null) {
t = new CacheEntry();
t.compileTime = source.getLastModified();
Parser parser = new Parser();
InputSource is = new InputSource(source.getInputStream());
is.setSystemId(source.getURI());
t.tree = parser.parse(is);
synchronized (cache) {
cache.put(source.getURI(), t);
}
}
new Processor(consumer, consumer).process(t.tree, jxpathContext);
} catch (TreeException exc) {
throw new SAXParseException(exc.getMessage(), exc, exc);
}
}
}
1.8 +7 -1 cocoon-2.1/src/scratchpad/webapp/samples/scratchpad-samples.xml
Index: scratchpad-samples.xml
===================================================================
RCS file: /home/cvs/cocoon-2.1/src/scratchpad/webapp/samples/scratchpad-samples.xml,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -r1.7 -r1.8
--- scratchpad-samples.xml 13 Jun 2003 10:27:38 -0000 1.7
+++ scratchpad-samples.xml 22 Jun 2003 18:48:20 -0000 1.8
@@ -19,6 +19,12 @@
JXForms Feedback Wizard Sample
</sample>
</group>
+
+ <group name="Garbage">
+ <sample name="Garbage" href="garbage/">
+ Flowscript Calculator Sample using Garbage Template Generator
+ </sample>
+ </group>
<group name="Castor">
<sample name="CastorTransformer" href="castor/">
1.1 cocoon-2.1/src/scratchpad/webapp/samples/garbage/sitemap.xmap
Index: sitemap.xmap
===================================================================
<?xml version="1.0"?>
<!-- CVS $Id: sitemap.xmap,v 1.1 2003/06/22 18:48:20 coliver Exp $ -->
<map:sitemap xmlns:map="http://apache.org/cocoon/sitemap/1.0";>
<map:pipelines>
<map:pipeline>
<map:match pattern="">
<map:generate src="samples.xml"/>
<map:transform
src="context://samples/common/style/xsl/html/simple-samples2html.xsl">
<map:parameter name="contextPath" value="{request:contextPath}"/>
</map:transform>
<map:serialize/>
</map:match>
<map:match pattern="*">
<map:redirect-to uri="{1}/"/>
</map:match>
<map:match pattern="*/**">
<map:mount uri-prefix="{1}" src="{1}/" check-reload="yes"/>
</map:match>
</map:pipeline>
</map:pipelines>
</map:sitemap>
1.1 cocoon-2.1/src/scratchpad/webapp/samples/garbage/calc/calc.js
Index: calc.js
===================================================================
var a, b, op;
function calculator()
{
a = getNumber("a");
b = getNumber("b", a);
op = getOperator(a, b);
if (op == "plus")
sendResult(a, b, op, a + b);
else if (op == "minus")
sendResult(a, b, op, a - b);
else if (op == "multiply")
sendResult(a, b, op, a * b);
else if (op == "divide")
sendResult(a, b, op, a / b);
else
sendResult("Error: Unkown operator!");
}
function getNumber(name, a, b)
{
var uri = "page/getNumber" + name.toUpperCase();
cocoon.sendPageAndWait(uri, { "a" : a, "b" : b });
print(cocoon.request);
for (i in cocoon.request) {
print(i + " = " + cocoon.request[i]);
}
return parseFloat(cocoon.request.getParameter(name));
}
function getOperator(a, b)
{
cocoon.sendPageAndWait("page/getOperator", { "a" : a, "b" : b });
return cocoon.request.getParameter("operator");
}
function sendResult(a, b, op, result)
{
cocoon.sendPage("page/displayResult",
{ "a" : a, "b" : b, "operator" : op, "result" : result });
}
1.1
cocoon-2.1/src/scratchpad/webapp/samples/garbage/calc/sitemap.xmap
Index: sitemap.xmap
===================================================================
<?xml version="1.0"?>
<map:sitemap xmlns:map="http://apache.org/cocoon/sitemap/1.0";>
<map:components>
<map:generators>
<map:generator name="garbage" logger="garbage.sitemap.generator"
src="org.apache.cocoon.generation.GarbageGenerator"/>
</map:generators>
</map:components>
<!-- indicates what flowscript to attach to this sitemap -->
<map:flow language="FOM_JavaScript">
<map:script src="calc.js"/>
</map:flow>
<map:pipelines>
<map:pipeline>
<!--+
| produces the screens called by the flowscript
+-->
<map:match pattern="page/*">
<map:generate type="garbage" src="screens/{1}.gt"/>
<map:transform
src="context://samples/common/style/xsl/html/simple-page2html.xsl">
<map:parameter name="servletPath" value="{request:servletPath}"/>
<map:parameter name="sitemapURI" value="{request:sitemapURI}"/>
<map:parameter name="contextPath" value="{request:contextPath}"/>
<map:parameter name="file" value="/samples/flow/calc/screens/{1}.gt"/>
<map:parameter name="remove" value="{0}"/>
</map:transform>
<map:serialize/>
</map:match>
</map:pipeline>
<map:pipeline>
<!--+
| matches the page with the continuation ID and calls the flowscript
| associated to this sitemap with the given continuation ID. The flow
| engine will then look into the continuation store, retrieve
| the correct continuation and resume execution of the flowscript
| with that continuation. This guarantees transparent state
| resumption between requests without the need for anything else
| (cookies or URL-encoded session IDs)
+-->
<map:match pattern="continue.*">
<map:call continuation="{1}"/>
</map:match>
<!--+
| matches the call to the beginning of the flow and calls the flow
| from its entry point which, in this case is the 'calculator()'
| javascript function.
+-->
<map:match pattern="">
<map:call function="calculator"/>
</map:match>
</map:pipeline>
</map:pipelines>
</map:sitemap>
1.1
cocoon-2.1/src/scratchpad/webapp/samples/garbage/calc/screens/displayResult.gt
Index: displayResult.gt
===================================================================
<?xml version="1.0"?>
<!--+
| CVS: $Id: displayResult.gt,v 1.1 2003/06/22 18:48:20 coliver Exp $
| Author: Ovidiu Predescu "[EMAIL PROTECTED]"
| Date: March 23, 2002
+-->
<page>
<resources>
<resource type="file" href="/samples/flow/calc/calc.js">Flowscript</resource>
</resources>
<title>Calculator</title>
<content>
<form action="./" method="post">
<para>a = <strong>#{a}</strong></para>
<para>b = <strong>#{b}</strong></para>
<para>Operator = <strong>#{operator}</strong></para>
<para>Result = <strong>#{result}</strong></para>
<input type="submit" name="submit" value="Start over"/>
</form>
</content>
</page>
1.1
cocoon-2.1/src/scratchpad/webapp/samples/garbage/calc/screens/getNumberA.gt
Index: getNumberA.gt
===================================================================
<?xml version="1.0"?>
<!--+
| CVS: $Id: getNumberA.gt,v 1.1 2003/06/22 18:48:20 coliver Exp $
| Author: Ovidiu Predescu "[EMAIL PROTECTED]"
| Date: March 23, 2002
+-->
<page>
<resources>
<resource type="file" href="/samples/flow/calc/calc.js">Flowscript</resource>
</resources>
<title>Calculator</title>
<content>
<form method="post" action="continue.{$continuation/id}">
<para>Enter value of <strong>a</strong>: <input type="text" name="a"/></para>
<input type="submit" name="submit" value="Enter"/>
</form>
</content>
</page>
1.1
cocoon-2.1/src/scratchpad/webapp/samples/garbage/calc/screens/getNumberB.gt
Index: getNumberB.gt
===================================================================
<?xml version="1.0"?>
<!--+
| CVS: $Id: getNumberB.gt,v 1.1 2003/06/22 18:48:20 coliver Exp $
| Author: Ovidiu Predescu "[EMAIL PROTECTED]"
| Date: March 23, 2002
+-->
<page>
<resources>
<resource type="file" href="/samples/flow/calc/calc.js">Flowscript</resource>
</resources>
<title>Calculator</title>
<content>
<form method="post" action="continue.{$continuation/id}">
<para>a = <strong>#{a}</strong></para>
<para>Enter value of <strong>b</strong>: <input type="text" name="b"/></para>
<input type="submit" name="submit" value="Enter"/>
</form>
</content>
</page>
1.1
cocoon-2.1/src/scratchpad/webapp/samples/garbage/calc/screens/getOperator.gt
Index: getOperator.gt
===================================================================
<?xml version="1.0"?>
<!--+
| CVS: $Id: getOperator.gt,v 1.1 2003/06/22 18:48:20 coliver Exp $
| Author: Ovidiu Predescu "[EMAIL PROTECTED]"
| Date: March 23, 2002
+-->
<page>
<resources>
<resource type="file" href="/samples/flow/calc/calc.js">Flowscript</resource>
</resources>
<title>Calculator</title>
<content>
<form method="post" action="continue.{$continuation/id}">
<para>a = <strong>#{a}</strong></para>
<para>b = <strong>#{b}</strong></para>
<para>Enter operator
<select name="operator">
<option>plus</option>
<option>minus</option>
<option>multiply</option>
<option>divide</option>
</select>
</para>
<input type="submit" name="submit" value="Do it!"/>
</form>
</content>
</page>
