[Jakarta Tapestry Wiki] Updated: FriendlyUrls

[ta...@jakarta.apache.org]

   Date: 2005-01-20T10:04:23
   Editor: PaulFerraro
   Wiki: Jakarta Tapestry Wiki
   Page: FriendlyUrls
   URL: http://wiki.apache.org/jakarta-tapestry/FriendlyUrls

   Added fix for reset service

Change Log:

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@@ -19,7 +19,8 @@
 
 I chose the following URL pattern to represent Tapestry services ''with'' an associated page:
 
-/''page-name''.htm
+/''page-name''.htm[[BR]]
+/''page-name''.reset
 
 I chose the following URL pattern to represent Tapestry services ''without'' an associated page:
 
@@ -30,6 +31,7 @@
 {{{
 <application name="MyApplication" engine-class="com.mycompany.BaseEngine">
     <property name="org.apache.tapestry.page-url-suffix" value=".htm"></property>
+    <property name="org.apache.tapestry.reset-url-suffix" value=".reset"></property>
     <property name="org.apache.tapestry.service-url-suffix" value=".do"></property>
     
     <!-- ... -->
@@ -46,7 +48,9 @@
 }}}
 
  Generated URL = {{{/path/mylisting.htm}}}[[BR]]
- Generated URL = {{{/path/mydetail.htm}}}
+ Generated URL = {{{/path/mylisting.reset}}}[[BR]]
+ Generated URL = {{{/path/mydetail.htm}}}[[BR]]
+ Generated URL = {{{/path/mydetail.reset}}}
 
 e.g.
 
@@ -135,7 +139,7 @@
 ||Action||{{{http://localhost/app?service=action/1/mydetail/10}}}||{{{http://localhost/path/mydetail.htm?service=action&service=1&service=10}}}||
 ||Home||{{{http://localhost/app?service=home}}}||{{{http://localhost/home.do}}}||
 ||Restart||{{{http://localhost/app?service=restart}}}||{{{http://localhost/restart.do}}}||
-||Reset||{{{http://localhost/app?service=reset}}}||{{{http://localhost/reset.do}}}||
+||Reset||{{{http://localhost/app?service=reset/mydetail}}}||{{{http://localhost/path/mydetail.reset}}}||
 ||Custom||{{{http://localhost/app?service=myservice&sp=21}}}||{{{http://localhost/path/myservice.do?sp=21}}}||
 
 After deciding on the URL scheme, the next step was to create an implementation of ILink that can generate the new URLs:
@@ -576,9 +580,28 @@
      */
     public ILink getLink(IRequestCycle requestCycle, IComponent component, Object[] parameters)
     {
-        String suffix = requestCycle.getEngine().getSpecification().getProperty(BaseEngine.SERVICE_URL_SUFFIX);
+        if (Tapestry.size(parameters) != 1)
+        {
+            throw new IllegalArgumentException(Tapestry.format("service-single-parameter", Tapestry.RESET_SERVICE));
+        }
+
+        String page = (String) parameters[0];
+        
+        String suffix = requestCycle.getEngine().getSpecification().getProperty(BaseEngine.RESET_URL_SUFFIX);
         
-        return new Link(requestCycle, Tapestry.RESET_SERVICE + suffix, null, null);
+        return new Link(requestCycle, page + suffix, null, null);
+    }
+    
+    /**
+     * @see org.apache.tapestry.engine.AbstractService#getServiceContext(org.apache.tapestry.request.RequestContext)
+     */
+    protected String[] getServiceContext(RequestContext requestContext)
+    {
+        IApplicationSpecification specification = requestContext.getServlet().getApplicationSpecification();
+        String urlSuffix = specification.getProperty(BaseEngine.RESET_URL_SUFFIX);
+        String servletPath = requestContext.getRequest().getServletPath();
+
+        return new String[] { servletPath.substring(1, servletPath.indexOf(urlSuffix)) };
     }
 }
 }}}
@@ -606,6 +629,7 @@
 {
     public static final String SERVICE_URL_SUFFIX = "org.apache.tapestry.service-url-suffix";
     public static final String PAGE_URL_SUFFIX = "org.apache.tapestry.page-url-suffix";
+    public static final String RESET_URL_SUFFIX = "org.apache.tapestry.reset-url-suffix";
     
     /**
      * @see org.apache.tapestry.engine.AbstractEngine#extractServiceName(org.apache.tapestry.request.RequestContext)
@@ -644,6 +668,13 @@
         {
             return servletPath.substring(1, servletPath.indexOf(serviceUrlSuffix));
         }
+
+        String resetUrlSuffix = specification.getProperty(RESET_URL_SUFFIX);
+        
+        if (servletPath.endsWith(resetUrlSuffix))
+        {
+            return Tapestry.RESET_SERVICE;
+        }
         
         throw new ApplicationRuntimeException("Invalid request: " + requestContext.getRequest().getRequestURL());
     }
@@ -668,6 +699,10 @@
     <servlet-mapping>
         <servlet-name>MyApplication</servlet-name>
         <url-pattern>*.htm</url-pattern>
+    </servlet-mapping>
+    <servlet-mapping>
+        <servlet-name>MyApplication</servlet-name>
+        <url-pattern>*.reset</url-pattern>
     </servlet-mapping>
     <servlet-mapping>
         <servlet-name>MyApplication</servlet-name>

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