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From Nathan Bubna <nbu...@gmail.com>
Subject Re: Velocity File Resource Path Loading Problem
Date Wed, 22 Jul 2009 20:10:45 GMT
On Wed, Jul 22, 2009 at 10:12 AM, Jim Cortez<jim@jimcortez.com> wrote:
> Turns out that that the WebappResourceLoader does not fix the problem.
>
> When you deploy an application to Android, you must run all the .class files
> through the dalvik converter. This changes the java bytecodes from
> stack-based to register based and puts them in a flat file. In turn, it also
> strips out any non-class files, such as textual config files. Velocity looks
> for a default velocity.properties file within it's jar, which does not
> exist.

woah.  that's a nasty trick.

> Is there any way to force Velocity to look at a different default
> velocity.properties? I have attempted this below, but failed. Any help is
> appreciated!

aside from hacking the code, none comes to mind at the moment.
perhaps if you just duplicate all those defaults in your own
velocity.properties, it may not need the default file?

> Thanks,
> Jim
>
> ====
> Properties p = new Properties();
>       InputStream iStream = null;
>       try {
>       iStream = new FileInputStream(context
>           .getRealPath(Configuration.VELOCITY_PROPERTIES_FOLDER)
>           + "/velocity.properties");
>       } catch (FileNotFoundException e2) {
>       Log.debug("Error loading velocity properties file: "
>           + context.getRealPath(Configuration.VELOCITY_PROPERTIES_FOLDER)
>           + "/velocity.properties");
>       success = false;
>       e2.printStackTrace();
>       }
>
>       try {
>       p.load(iStream);
>       } catch (IOException e1) {
>       Log.debug("Error loading velocity.properties");
>       e1.printStackTrace();
>       }
>             p.setProperty(Velocity.RESOURCE_LOADER, "webapp");
>       p.setProperty("webapp.resource.loader.class",
>           "org.apache.velocity.tools.view.WebappResourceLoader");
>       p.setProperty("webapp.resource.loader.path", Configuration.VIEWS_LOC);
>       Velocity.setApplicationAttribute("javax.servlet.ServletContext",
> context);
>
>       Velocity.setProperty(Velocity.RUNTIME_LOG_LOGSYSTEM,
> "ConciergeVelocityLogger");
>             try {
>       Velocity.init(p);
>       } catch (Exception e) {
>       Log.debug("Error initializing Velocity: " + e.getMessage());
>       e.printStackTrace();
>       success = false;
>       }
> ====
> yields
>
> ====
> D/Jetty   (  710): Error initializing Velocity: null
> W/System.err(  710): java.lang.NullPointerException
> W/System.err(  710):    at java.io.Reader.<init>(Reader.java:72)
> W/System.err(  710):    at
> java.io.InputStreamReader.<init>(InputStreamReader.java:96)
> W/System.err(  710):    at
> org.apache.commons.collections.ExtendedProperties.load(ExtendedProperties.java:543)
> W/System.err(  710):    at
> org.apache.commons.collections.ExtendedProperties.load(ExtendedProperties.java:519)
> W/System.err(  710):    at
> org.apache.velocity.runtime.RuntimeInstance.setDefaultProperties(RuntimeInstance.java:397)
> W/System.err(  710):    at
> org.apache.velocity.runtime.RuntimeInstance.initializeProperties(RuntimeInstance.java:570)
> W/System.err(  710):    at
> org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:249)
> W/System.err(  710):    at
> org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:589)
> W/System.err(  710):    at
> org.apache.velocity.runtime.RuntimeSingleton.init(RuntimeSingleton.java:229)
> W/System.err(  710):    at
> org.apache.velocity.app.Velocity.init(Velocity.java:107)
> W/System.err(  710):    at
> org.concierge.lib.Configurator.initialize(Configurator.java:64)
> W/System.err(  710):    at
> org.concierge.lib.DispatchServlet.doGet(DispatchServlet.java:25)
> W/System.err(  710):    at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> W/System.err(  710):    at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> W/System.err(  710):    at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
> W/System.err(  710):    at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:389)
> W/System.err(  710):    at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> W/System.err(  710):    at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> W/System.err(  710):    at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
> W/System.err(  710):    at
> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
> W/System.err(  710):    at
> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> W/System.err(  710):    at
> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
> W/System.err(  710):    at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> W/System.err(  710):    at org.mortbay.jetty.Server.handle(Server.java:320)
> W/System.err(  710):    at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)
> W/System.err(  710):    at
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:865)
> W/System.err(  710):    at
> org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
> W/System.err(  710):    at
> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> W/System.err(  710):    at
> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> W/System.err(  710):    at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
> W/System.err(  710):    at
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)
> ====
>
> Nathan Bubna wrote:
>>
>> Have you tried using the WebappResourceLoader from the VelocityTools
>> project? The FileResourceLoader is difficult to use and not very
>> portable in webapp environments.  It also won't work at all in
>> unexploded WAR deployments.
>>
>> On Mon, Jul 20, 2009 at 9:48 PM, Jim Cortez<jim@jimcortez.com> wrote:
>>
>>>
>>> Hello all,
>>>  I am working on a small MVC framework that runs on top of iJetty (a
>>> Jetty
>>> port fot the Android platform). I am having trouble during initialization
>>> of
>>> Velocity. Take a peek at the following code:
>>>
>>> ====
>>> Log.info("Setting Template Directory: "+Configuration.VIEWS_LOC);
>>> File viewsFolder = new File(Configuration.VIEWS_LOC);
>>> if(!viewsFolder.exists() || !viewsFolder.canRead()){
>>>  success=false;
>>>  Log.warn("Folder "+Configuration.VIEWS_LOC+" does not exist, or
>>> unreachable!");
>>> } else {
>>>  Velocity.setProperty(Velocity.FILE_RESOURCE_LOADER_PATH,
>>> Configuration.VIEWS_LOC);
>>>  Velocity.setProperty(Velocity.RUNTIME_LOG_LOGSYSTEM,
>>> "ConciergeVelocityLogger");
>>>  try {
>>>      Velocity.init();
>>>  } catch (Exception e) {
>>>      Log.warn("Error initializing Velocity: "+e.getMessage());
>>>      e.printStackTrace();
>>>      success = false;
>>>  }
>>> }
>>> ====
>>>
>>> That code should show that the templates directory both exists and is
>>> readable. Here is the output of the error log:
>>>
>>> ====
>>> I/Jetty   (  709): Setting Template Directory:
>>> /sdcard/jetty/webapps/concierge/WEB-INF/views
>>> W/Jetty   (  709): Error initializing Velocity: null
>>> W/System.err(  709): java.lang.NullPointerException
>>> W/System.err(  709):    at java.io.Reader.<init>(Reader.java:72)
>>> W/System.err(  709):    at
>>> java.io.InputStreamReader.<init>(InputStreamReader.java:96)
>>> W/System.err(  709):    at
>>>
>>> org.apache.commons.collections.ExtendedProperties.load(ExtendedProperties.java:543)
>>> W/System.err(  709):    at
>>>
>>> org.apache.commons.collections.ExtendedProperties.load(ExtendedProperties.java:519)
>>> W/System.err(  709):    at
>>>
>>> org.apache.velocity.runtime.RuntimeInstance.setDefaultProperties(RuntimeInstance.java:397)
>>> W/System.err(  709):    at
>>>
>>> org.apache.velocity.runtime.RuntimeInstance.initializeProperties(RuntimeInstance.java:570)
>>> W/System.err(  709):    at
>>>
>>> org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:249)
>>> W/System.err(  709):    at
>>>
>>> org.apache.velocity.runtime.RuntimeSingleton.init(RuntimeSingleton.java:114)
>>> W/System.err(  709):    at
>>> org.apache.velocity.app.Velocity.init(Velocity.java:79)
>>> W/System.err(  709):    at
>>> org.concierge.lib.Configurator.initialize(Configurator.java:34)
>>> W/System.err(  709):    at
>>> org.concierge.lib.DispatchServlet.doGet(DispatchServlet.java:25)
>>> W/System.err(  709):    at
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
>>> W/System.err(  709):    at
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
>>> W/System.err(  709):    at
>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
>>> W/System.err(  709):    at
>>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:389)
>>> W/System.err(  709):    at
>>>
>>> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
>>> W/System.err(  709):    at
>>> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
>>> W/System.err(  709):    at
>>> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
>>> W/System.err(  709):    at
>>> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
>>> W/System.err(  709):    at
>>>
>>> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
>>> W/System.err(  709):    at
>>>
>>> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
>>> W/System.err(  709):    at
>>> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
>>> W/System.err(  709):    at
>>> org.mortbay.jetty.Server.handle(Server.java:320)
>>> W/System.err(  709):    at
>>> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)
>>> W/System.err(  709):    at
>>>
>>> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:865)
>>> W/System.err(  709):    at
>>> org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
>>> W/System.err(  709):    at
>>> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
>>> W/System.err(  709):    at
>>> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
>>> W/System.err(  709):    at
>>>
>>> org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
>>> W/System.err(  709):    at
>>>
>>> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)
>>> ====
>>>
>>> I can only assume that there is a problem reading in the template
>>> directory.
>>> The custom logger I created merely redirects the output to a stdout log.
>>> Does anyone have any idea how to solve this little problem? I am using
>>> Velocity 1.6.2, iJetty 2.1, and Android 1.5.
>>>
>>> Thank you,
>>> Jim Cortez
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
>>> For additional commands, e-mail: user-help@velocity.apache.org
>>>
>>>
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
>> For additional commands, e-mail: user-help@velocity.apache.org
>>
>>
>
>

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