I did a few more experiments with static images in Wicket 1.3 and
narrowed the problem down to my use of AttributeModifier:
Consider a Wicket home page with no components that displays a static
image via the following HTML:
<html>
<head>
<title>Wicket Quickstart Archetype Homepage</title>
</head>
<body>
<strong>Wicket Quickstart Archetype Homepage</strong>
<br/><br/>
<img alt="Picture" src="imageName.png"/>
</body>
</html>
The image appears, and with the QuickStart's filter URL of "/*" the HTML
delivered to my browser is essentially the same as the HTML of my Wicket
home page. However, when I changed the Wicket filter's URL from "/*" to
"/test/*" then the source HTML of the delivered page changes the <img>
tag to:
<img alt="Picture" src="../imageName.png"/>
Notice the "../" prepended to "imageName.png".
The code that gives me trouble sets the image name via AttributeModifier
and WebComponent. Change the home page HTML to:
<html>
<head>
<title>Wicket Quickstart Archetype Homepage</title>
</head>
<body>
<strong>Wicket Quickstart Archetype Homepage</strong>
<br/><br/>
<img wicket:id = "picture" alt="Picture"
src="imageNameGoesHere.png"/>
</body>
</html>
Adding a component, the constructor of my HomePage becomes:
public HomePage(final PageParameters parameters) {
WebComponent wmc = new WebComponent("picture");
wmc.add( new AttributeModifier( "src", true, new
Model("imageName.png") ) );
add( wmc );
}
Whether or not I re-map the filter's URL, the HTML delivered to my
browser is:
<html>
<head>
<title>Wicket Quickstart Archetype Homepage</title>
</head>
<body>
<strong>Wicket Quickstart Archetype Homepage</strong>
<br/><br/>
<img alt="Picture" src="imageName.png" wicket:id="picture"/>
</body>
</html>
The image is found using the "/*" URL that comes with the QuickStart,
but if I change the URL of the filter to "/test/*" then it no longer
finds the image -- because no "../" is prepended to "imageName.png", as
was the case with the purely static reference.
However, re-mapping the Wicket filter to "/test/*", I can get the image
to appear if I change the model of my AttributeModifier as follows:
public HomePage(final PageParameters parameters) {
WebComponent wmc = new WebComponent("picture");
wmc.add( new AttributeModifier( "src", true, new
Model("../imageName.png") ) );
add( wmc );
}
Now, the HTML is delivered with an image source of "../imageName.png".
With Wicket 1.2, my use of AttributeModifier worked no matter what URL I
used to deploy the application. Is there an better way of coding this
that will work with whatever URL I use in my web.xml, or do I still need
to create a JIRA issue?
-----Original Message-----
From: Igor Vaynberg [mailto:[EMAIL PROTECTED]
Sent: Friday, June 13, 2008 4:52 PM
To: [email protected]
Subject: Re: Wicket 1.2 -> 1.3 upgrade question
well, package an example project that demonstrates it and attach it to
jira
-igor
On Fri, Jun 13, 2008 at 1:19 PM, Frank Silbermann
<[EMAIL PROTECTED]> wrote:
> Adding the filterMappingUrlPattern didn't seem to make any difference.
> When both are set to "/*" I see the image; when both are set to
> "/test/*" then I don't see the image.
>
> -----Original Message-----
> From: Igor Vaynberg [mailto:[EMAIL PROTECTED]
> Sent: Friday, June 13, 2008 3:10 PM
> To: [email protected]
> Subject: Re: Wicket 1.2 -> 1.3 upgrade question
>
> guess so
>
> -igor
>
> On Fri, Jun 13, 2008 at 1:04 PM, Frank Silbermann
> <[EMAIL PROTECTED]> wrote:
>> Like this?
>>
>> <?xml version="1.0" encoding="ISO-8859-1"?> <web-app
>> xmlns="http://java.sun.com/xml/ns/j2ee";
>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>> xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
>> http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"; version="2.4">
>>
>> <display-name>myproject</display-name>
>>
>> <filter>
>> <filter-name>wicket.myproject</filter-name>
>>
>> <filter-class>org.apache.wicket.protocol.http.WicketFilter</filter-cl
>> a
>> ss
>>>
>> <init-param>
>> <param-name>applicationClassName</param-name>
>>
>> <param-value>com.mycompany.WicketApplication</param-value>
>> </init-param>
>> <init-param>
>>
> <param-name>filterMappingUrlPattern</param-name>
>> <param-value>/test/*</param-value>
>> </init-param>
>> </filter>
>>
>> <filter-mapping>
>> <filter-name>wicket.myproject</filter-name>
>> <url-pattern>/test/*</url-pattern>
>> </filter-mapping>
>>
>> </web-app>
>>
>> -----Original Message-----
>> From: Igor Vaynberg [mailto:[EMAIL PROTECTED]
>> Sent: Friday, June 13, 2008 2:45 PM
>> To: [email protected]
>> Subject: Re: Wicket 1.2 -> 1.3 upgrade question
>>
>> the filter itself takes a configuration param where you have to
>> repeat
>
>> the mapping...
>>
>> class WicketFilter {
>> /**
>> * The name of the root path parameter that specifies the root
>> dir of the app.
>> */
>> public static final String FILTER_MAPPING_PARAM =
>> "filterMappingUrlPattern";
>>
>> String filterMapping =
>> filterConfig.getInitParameter(WicketFilter.FILTER_MAPPING_PARAM);
>> }
>>
>> -igor
>>
>> On Fri, Jun 13, 2008 at 11:09 AM, Frank Silbermann
>> <[EMAIL PROTECTED]> wrote:
>>> Yes, there is a <filter-mapping> element that maps <filter-name> to
>>> <url-pattern>.
>>>
>>> However, as I mentioned in
>>> http://www.nabble.com/Re%3A-%28Class%3C--extends-Page%3C-%3E%3E%29-c
>>> a s ti ng-troubles-td17640954i40.html#a17824049, when I changed the
>>> <url-pattern> from "/*" to "/something/*" -- my static images
>>> (referenced by the HTML such as
>>>
>>> < img wicket:id="picture" src="image1.png" alt="Picture"/ >
>>>
>>> where "image1.png" was set via AttributeModifyer) no longer
appeared.
>>>
>>> That suggested to me that perhaps I wasn't supposed to change the
>>> <url-pattern> of the filter. Should I submit this as a JIRA issue?
>>>
>>> -----Original Message-----
>>> From: Igor Vaynberg [mailto:[EMAIL PROTECTED]
>>> Sent: Friday, June 13, 2008 12:53 PM
>>> To: [email protected]
>>> Subject: Re: Wicket 1.2 -> 1.3 upgrade question
>>>
>>> you have to give the mapping as a config param to the filter also, i
>>> forget the exact name right now...
>>>
>>> -igor
>>>
>>> On Fri, Jun 13, 2008 at 10:00 AM, Frank Silbermann
>>> <[EMAIL PROTECTED]> wrote:
>>>> Wicket 1.3 is configured as a filter rather than as a servlet. The
>>>> Quickstart shows a filter whose URL-PATTERN is "/*".
>>>>
>>>> The project that I wish to upgrade contains two Wicket 1.2
>>>> application
>>>
>>>> servlets (two different home-pages accessed via different URLs),
>>>> and
>
>>>> one plain-vanilla non-Wicket servlet. They are deployed together
>>>> because they share the same code-base.
>>>>
>>>> This is my Wicket 1.2 project's web.xml file. How do I do this
>>>> sort
>
>>>> of thing in Wicket 1.3?
>>>>
>>>> <?xml version="1.0" encoding="UTF-8"?> <web-app
>>>> xmlns="http://java.sun.com/xml/ns/j2ee
>>>> <http://java.sun.com/xml/ns/j2ee> "
>>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance
>>>> <http://www.w3.org/2001/XMLSchema-instance> "
>>>> xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
>>>> <http://java.sun.com/xml/ns/j2ee>
>>>> http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd
>>>> <http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd> " version="2.4">
>>>> <display-name>MEMSpssWebModule</display-name>
>>>> <context-param>
>>>> <param-name>configuration</param-name>
>>>> <param-value>development</param-value>
>>>> </context-param>
>>>> <servlet>
>>>> <servlet-name>MEM_Application</servlet-name>
>>>>
<servlet-class>wicket.protocol.http.WicketServlet</servlet-class>
>>>> <init-param>
>>>> <param-name>applicationClassName</param-name>
>>>> <param-value>mem.MEM_Application</param-value>
>>>> </init-param>
>>>> <load-on-startup>1</load-on-startup>
>>>> </servlet>
>>>> <servlet-mapping>
>>>> <servlet-name>MEM_Application</servlet-name>
>>>> <url-pattern>/mem/*</url-pattern> </servlet-mapping>
>>>>
>>>> <servlet>
>>>> <servlet-name>MEMTestApplication</servlet-name>
>>>>
<servlet-class>wicket.protocol.http.WicketServlet</servlet-class>
>>>> <init-param>
>>>> <param-name>applicationClassName</param-name>
>>>> <param-value>mem.TestApplication</param-value>
>>>> </init-param>
>>>> <load-on-startup>1</load-on-startup>
>>>> </servlet>
>>>> <servlet-mapping>
>>>> <servlet-name>MEMTestApplication</servlet-name>
>>>> <url-pattern>/MEMTest/*</url-pattern>
>>>> </servlet-mapping>
>>>>
>>>>
>>>> <servlet>
>>>> <servlet-name>trackingnumbers</servlet-name>
>>>> <servlet-class>mem.TrackingNumbers</servlet-class>
>>>> </servlet>
>>>> <servlet-mapping>
>>>> <servlet-name>trackingnumbers</servlet-name>
>>>> <url-pattern>/trackingnumbers</url-pattern>
>>>> </servlet-mapping>
>>>>
>>>> <resource-ref>
>>>> <description>Resource reference to a factory for
>>> java.sql.Connection
>>>> instances that may be used for talking to a particular
>>>> database that is configured in the server.xml
>> file.</description>
>>>> <res-ref-name>jdbc/database</res-ref-name>
>>>> <res-type>javax.sql.DataSource</res-type>
>>>> <res-auth>Container</res-auth>
>>>> </resource-ref>
>>>> </web-app>
>>>>
>>>>
>>>>
>>>>
>>>
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