Hi Lookman, Congrats, you're doing really good! I'm happy you decided to follow my recommendation of jumping into the community bonding period with regular updates on your progress and posting of any questions you have along the way. I have followed all your threads until now and have a few suggestions which you will find below.
On Thu, May 7, 2009 at 6:14 PM, Luciano Resende <[email protected]>wrote: > On Thu, May 7, 2009 at 12:12 AM, lookman sanni <[email protected]> > wrote: > > > > The full Abdera parser uses apache http client which is already natively > > supported on Android. This induces a conflict in the imported packages, > and > > i ended up with a null pointer exception when initiating an Abdera Client > on > > Android. > > > > Just a thought, wow about for now, we try to parse the atom as xml ? > this could at least make you progress and get something working. While it is a good idea to simplify and try to get things running, also consider what might need to be done to get SCA running on Android. This is also part of your project, namely the part about Android SCA Runtime, or host-android, but of course you know that already. One idea is to try this part of the project in parallel to other efforts. > > > I tried then to import Abdera core sources to my workspace, and convert > it > > to an android application so that it'll include directly the native > apache > > httpclient, but that reveals that android's javax.xml is very classless > > (missing the javax.xml.namespace.QNAME and may be some other classes). > > > > I had a patch for that, but haven' t played with it for couple weeks > and might need update. > If I'm not mistaken, Luciano's reference here is about the host-android part of the project. You might want to look into the thread: "Android progress update" on markmail. The last I tested on that can be found in [1]. Afterwards I found out about a similar effort of getting an Apache project running on Android...This year at ApacheCon Europe there was a presentation by Marcel Offermans and Christian van Spaandonk, about getting Apache Felix running on Android. Here's an excerpt of what they said about getting Felix to run on Android: - "When Android was first released, the first problem was getting Felix to run ... even without any bundles, just the plain framework. The framework is pretty portable by itself, so that wasn't too hard to do. The hard part started when we wanted to actually dynamically deploy bundles. That didn't work at first, because these bundles only contain OSGi Java code, and we somehow had to dex'ify these bundles and then try and load these dex'ified classes. And there wasn't and still isn't an API to officially do that." - "...but, well, specifically I remember on a Friday evening was a little after 10 o'clock - found a way of doing that. So when we did that we immediately started to write a blog about that and it spread like wildfire, and in no time everybody was running this out. And actually we figured out the fix was pretty easy, so we even embedded that as part of Felix. So if you download Felix right now, you can just deploy it on Android, and it will run." I believe the blog Marcel was talking about is found in [2]. Hopefully it'll be helpful to get SCA running on Android. We can also try to contact him on the Felix mailing list to get more help if needed. [1] http://www.mail-archive.com/[email protected]/msg05685.html [2] http://felix.apache.org/site/apache-felix-and-google-android.html > > I finally tried out something more generic: Initialize an httpClient, > > perform an httppost of the xml section below using the > > org.apache.http.client.methods package. > >> > >> "<entry xmlns='http://www.w3.org/2005/Atom'>" + > >> "<title>item</title>" + > >> "<content type='text/xml'>" + > >> "<Item xmlns='http://services/'>" + > >> "<name xmlns=''>" + item.getName()+ "</name>" + > >> "<price xmlns=''>" +item.getPrice()+"</price>" + > >> "</Item></content></entry>" > > > > httpResponse return Internal Server error, while the binding atom section > at > > the server side fire a null pointer exception. Can this be due to the xml > > content > > schema (atom supposed) i'm posting? > > > > > > Take a look at function addToCart() from [1], it should give you the > proper atom payload to send when adding a new item to shoppingCart. > > > > [1] > http://svn.apache.org/repos/asf/tuscany/branches/sca-java-1.x/samples/store/src/main/resources/uiservices/store.html > > > -- > Luciano Resende > Apache Tuscany, Apache PhotArk > http://people.apache.org/~lresende <http://people.apache.org/%7Elresende> > http://lresende.blogspot.com/ > -- best, -oscar Oscar Castañeda http://people.apache.org/~ocastaneda
