On Wed, Feb 24, 2010 at 9:43 AM, Johana <[email protected]> wrote:
>
> I have the exact same problem. I get a NullPointerException when I want to
> extract the service with a specific serviceReference:
>
> ref = bc.getServiceReference(sb[j].toString());
> Log.d("REF", ref.toString());
Well, is it possible that the ref is null? The getServiceReference
method will return null if it can't find the service...
regards,
Karl
> Object service = bc.getService(ref);
>
> It does not even get to the 3rd line of code... Does anybody have an idea
> why? The service appears to be registered.
>
>
>
> pablomj wrote:
>>
>> Well, I learned that the EnglishDictionary.jar bundle it is installed
>> (also Spellchecker and FrenchDictionary) because I obtained all bundles of
>> the bundlecontext of felix.
>> And I extracted the registered services of this bundles with:
>>
>> ServiceReference[] sb=bc.getBundles()[i].getRegisteredServices();
>>
>> Printing with:
>>
>> Log.d("FELIX","registered services: "+sb[j].toString());
>>
>> I obtain:
>> 02-18 17:40:41.818: DEBUG/FELIX(847): registered services:
>> [tutorial.example2.service.DictionaryService]
>>
>> It's a good new. Now...I want instanciate this service ...but I can't
>> instanciate a "DictionaryService" object :(. Some comment? I continue with
>> this, slowly but with energy.
>>
>>
>> Best Regards,
>> Pablo.
>>
>>
>>
>>
>>
>> pablomj wrote:
>>>
>>> Good day, I have good and bad news.
>>>
>>> Firts, Clement thanks, exactly it is need to add in the manifest file the
>>> line:
>>> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
>>> />
>>>
>>> But, it is not enough if you are proving in a emulator. In this case, you
>>> need emulate an sdcard because if you don't make this you will not have
>>> permissions in the sdcard. So, if someday you have this problem, you must
>>> write in console in sdk path/tools:
>>>
>>> mksdcard 64M mySDCard (this creates the sdcard)
>>> android create avd -n nombre -t 4 (this creates an emulator)
>>> emulator -avd nombre -sdcard mySDCard (this launches the emulator with
>>> the sdcard)
>>>
>>> At this moment, you can create and push files in sdcard. Now, in my case
>>> is important don't forget make the push collectionOfJarsFiles in this new
>>> emulator with
>>> adb push C:\EclipseDevelopment\ApacheFelix\Apache_felix_demo\bundle
>>> /data/felix
>>>
>>>
>>> Well, the bad news are that...now I can install a bundle but I think this
>>> is wrong.
>>>
>>> I put here the modified code provided by Bruce:
>>>
>>> void launchFelix()
>>> {
>>> Log.d("Felix", "About to start Felix...");
>>> // Create a configuration property map
>>> String cacheDir = null;
>>> try
>>> {
>>> cacheDir = File.createTempFile("skifta", ".tmp").getParent();
>>> }
>>> catch (IOException e)
>>> {
>>> Log.d("Felix", "unable to create temp file", e);
>>> return;
>>> }
>>>
>>> Map configMap = new StringMap(false);
>>> configMap.put("org.osgi.framework.storage", cacheDir);
>>> configMap.put("felix.embedded.execution", "true");
>>> configMap.put("org.osgi.service.http.port", "9990");
>>> configMap.put("org.osgi.framework.startlevel.beginning", "5");
>>>
>>> try
>>> {
>>> // Now create an instance of the framework with
>>> // our configuration properties.
>>> m_felix = new Felix(configMap);
>>> // Now start Felix instance.
>>> m_felix.start();
>>> Log.d("Felix", "Felix is started");
>>>
>>> BundleContext bc=m_felix.getBundleContext();
>>> bc.installBundle("file:/data/felix/EnglishDictionary.jar");
>>>
>>> for(org.osgi.framework.Bundle b :
>>> m_felix.getBundleContext().getBundles())
>>> {
>>> b.start();
>>> Log.d("Felix", "Bundle: " + b.getSymbolicName());
>>> }
>>> }
>>> catch (Throwable ex)
>>> {
>>> Log.d("Felix","Could not create framework: " +
>>> ex.getMessage(), ex);
>>> }
>>> }
>>>
>>>
>>> Well, the install is it made without problems, program don't jumps to the
>>> catch. So, I make install of the EnglishDictionary.jar. But, then, when I
>>> iterate in the for, the b.start() is also made, but I think that I am
>>> doing something wrong because b.getSymbolicName() "null".
>>>
>>> So, what do you think?The bundle is installed?I installed a void bundle?I
>>> made something wrong?
>>>
>>> Salutations and thanks for everyone.
>>> Pablo Muñoz.
>>>
>>>
>>>
>>> clement escoffier wrote:
>>>>
>>>> Hi,
>>>>
>>>>
>>>>
>>>> On 16.02.2010, at 19:20, pablomj wrote:
>>>>
>>>>>
>>>>> Hi everyone, I know what is my current problem.
>>>>>
>>>>> the problem is in this try
>>>>>
>>>>> void launchFelix()
>>>>> {
>>>>> Log.d("Felix", "About to start Felix...");
>>>>> // Create a configuration property map
>>>>> String cacheDir = null;
>>>>> //String FELIX_CACHE_DIR =
>>>>> "/data/data/net.luminis.android.felix/cache";
>>>>> try {
>>>>> cacheDir = File.createTempFile("skifta",
>>>>> ".tmp").getParent();
>>>>> } catch (IOException e) {
>>>>> Log.d("Felix", "unable to create temp file", e);
>>>>> return;
>>>>> }
>>>>> .
>>>>> .
>>>>> .
>>>>>
>>>>> Because I don't have permissions to write in the /sdcard directory of
>>>>> the
>>>>> emulator. So, the program can't create the temp file.
>>>>>
>>>>> somebody knows how I can add permissions to this directory?
>>>>> Thanks.
>>>>
>>>> Recent Android version have introduced a permission to write on the
>>>> sdcard
>>>> Add this line to your manifest:
>>>> <uses-permission
>>>> android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
>>>>
>>>> Moreover, check that you have created an AVD with an SDCARD.
>>>>
>>>> Regards,
>>>>
>>>> Clement
>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> clement escoffier wrote:
>>>>>>
>>>>>>
>>>>>> On 15.02.2010, at 18:56, pablomj wrote:
>>>>>>
>>>>>>>
>>>>>>> Hi everyone, here are my advances,
>>>>>>>
>>>>>>> I reviewed all steps, I can instanciate a Felix object like in your
>>>>>>> example.
>>>>>>> It was a problem with dependencies.
>>>>>>>
>>>>>>> Proving for install for start and stop a bundle I made in the code:
>>>>>>>
>>>>>>> BundleContext newBundle = m_felix.getBundleContext();
>>>>>>> bb.installBundle(pathOfTheBundle);
>>>>>>>
>>>>>>> When...now my problem is this pathOfTheBundle, I tried put in
>>>>>>> pathOfTheBundle "/data/felix/EnglishDictionary.jar" (location where I
>>>>>>> put
>>>>>>> this bundle with adb push ..... in console )and some variants, but
>>>>>>> always
>>>>>>> is
>>>>>>> an wrong path. What I must express my bundle location?
>>>>>>>
>>>>>>> Can anybody help me? Thanks again.
>>>>>>
>>>>>> Try with: file:/data/felix//EnglishDictionary.jar.
>>>>>>
>>>>>> Be also aware that this location is not available on regular devices.
>>>>>> For
>>>>>> such kind of manipulation, you should use the external storage
>>>>>> (generally
>>>>>> /sdcard, but use the Environment class to get the root). (you can also
>>>>>> use
>>>>>> the internal application assets).
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Clement
>>>>>>
>>>>>>>
>>>>>>> Regards, Pablo.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Jackson, Bruce wrote:
>>>>>>>>
>>>>>>>> Yes, you can.
>>>>>>>>
>>>>>>>> In the code I sent you, you'll see that you can get a handle to the
>>>>>>>> BundleContext for the framework itself. From this you can then call:
>>>>>>>>
>>>>>>>> context.installBundle(String location);
>>>>>>>>
>>>>>>>> to install your own bundles.
>>>>>>>>
>>>>>>>>
>>>>>>>> On 12/02/2010 15:07, "pablomj" <[email protected]> wrote:
>>>>>>>>
>>>>>>>>>
>>>>>>>>> Oh, thanks Bruce and Karl for your comments.
>>>>>>>>>
>>>>>>>>> I did something wrong, because I can't instanciate an "Felix"
>>>>>>>>> object.
>>>>>>>>> So,
>>>>>>>>> I
>>>>>>>>> am going to review all steps...
>>>>>>>>>
>>>>>>>>> Although I don't see running this yet, I will can start and stop
>>>>>>>>> bundles
>>>>>>>>> from my Android application? I excited to view this!
>>>>>>>>>
>>>>>>>>> Regards,
>>>>>>>>> Pablo.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Karl Pauls wrote:
>>>>>>>>>>
>>>>>>>>>> Why would you need 1.5 to be able to dex the bundle (the framework
>>>>>>>>>> itself is build for 1.3 btw.)?
>>>>>>>>>>
>>>>>>>>>> regards,
>>>>>>>>>>
>>>>>>>>>> Karl
>>>>>>>>>>
>>>>>>>>>> On Fri, Feb 12, 2010 at 1:15 PM, Jackson, Bruce
>>>>>>>>>> <[email protected]>
>>>>>>>>>> wrote:
>>>>>>>>>>> Hi Pablo
>>>>>>>>>>>
>>>>>>>>>>> See the attached code. The biggest problem I've encountered is
>>>>>>>>>>> that
>>>>>>>>>>> the
>>>>>>>>>>> Felix distribution is a huge pain to build under JDK 1.5, and
>>>>>>>>>>> therefore
>>>>>>>>>>> to
>>>>>>>>>>> be able to use some of the bundles (for example the http service)
>>>>>>>>>>> that
>>>>>>>>>>> are
>>>>>>>>>>> part of the distribution. Its not a simple job of just changing a
>>>>>>>>>>> couple
>>>>>>>>>>> of
>>>>>>>>>>> entries in POM files: some components download pre-built JAR
>>>>>>>>>>> files
>>>>>>>>>>> from
>>>>>>>>>>> the
>>>>>>>>>>> web and explode these, thereby having classes built under 1.4
>>>>>>>>>>> which
>>>>>>>>>>> will
>>>>>>>>>>> not
>>>>>>>>>>> work when you dexify the bundles.
>>>>>>>>>>>
>>>>>>>>>>> This is something that would be great to see some work done on by
>>>>>>>>>>> the
>>>>>>>>>>> Felix
>>>>>>>>>>> community, because while its true that the basic Felix core does
>>>>>>>>>>> and
>>>>>>>>>>> will
>>>>>>>>>>> support Android, most of the add-on bundles wont.
>>>>>>>>>>>
>>>>>>>>>>> For my part, the ideal solution would be to see the whole
>>>>>>>>>>> framework
>>>>>>>>>>> be
>>>>>>>>>>> based
>>>>>>>>>>> on JDK 1.5 and not 1.4.
>>>>>>>>>>>
>>>>>>>>>>> Thanks
>>>>>>>>>>>
>>>>>>>>>>> Bruce
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On 12/02/2010 11:32, "pablomj" <[email protected]> wrote:
>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> Hi Bruce, I am trying the same, but I don't have the solution
>>>>>>>>>>>> yet.
>>>>>>>>>>>> Do you have some advance?
>>>>>>>>>>>> Salutations, thanks.
>>>>>>>>>>>> Pablo.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> Jackson, Bruce wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>> The Felix site has a useful section on getting things going on
>>>>>>>>>>>>> Android
>>>>>>>>>>>>> (
>>>>>>>>>>>>> http://felix.apache.org/site/apache-felix-and-google-android.html)
>>>>>>>>>>>>> but
>>>>>>>>>>>>> isn't
>>>>>>>>>>>>> so clear about embedding the framework into an Android app"
>>>>>>>>>>>>>
>>>>>>>>>>>>> "Apache Felix can also be integrated with an Android
>>>>>>>>>>>>> application.
>>>>>>>>>>>>> To
>>>>>>>>>>>>> achieve
>>>>>>>>>>>>> this, you need to embed Felix into onCreate() method of your
>>>>>>>>>>>>> Activity
>>>>>>>>>>>>> class
>>>>>>>>>>>>> (see Android docs for more details on how to use an Activity)
>>>>>>>>>>>>> and
>>>>>>>>>>>>> process
>>>>>>>>>>>>> your bundles as shown above."
>>>>>>>>>>>>>
>>>>>>>>>>>>> Has anyone got an example of how you do this? I understand how
>>>>>>>>>>>>> to
>>>>>>>>>>>>> write
>>>>>>>>>>>>> the
>>>>>>>>>>>>> Android app, and I get the point being made here. What I need
>>>>>>>>>>>>> to
>>>>>>>>>>>>> understand
>>>>>>>>>>>>> is:
>>>>>>>>>>>>>
>>>>>>>>>>>>> 1. How do you launch the Felix framework. What do I need to
>>>>>>>>>>>>> instantiate?
>>>>>>>>>>>>> 2. Where does the framework get its boot configuration (i.e.
>>>>>>>>>>>>> what
>>>>>>>>>>>>> bundles
>>>>>>>>>>>>> to
>>>>>>>>>>>>> load, run levels, environment variables, etc) from in this
>>>>>>>>>>>>> case?
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> Karl Pauls
>>>>>>>>>> [email protected]
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> View this message in context:
>>>>>>> http://old.nabble.com/Felix-on-Android-tp27245141p27597525.html
>>>>>>> Sent from the Apache Felix - Dev mailing list archive at Nabble.com.
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>> View this message in context:
>>>>> http://old.nabble.com/Felix-on-Android-tp27245141p27612787.html
>>>>> Sent from the Apache Felix - Dev mailing list archive at Nabble.com.
>>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
> --
> View this message in context:
> http://old.nabble.com/Felix-on-Android-tp27245141p27714130.html
> Sent from the Apache Felix - Dev mailing list archive at Nabble.com.
>
>
--
Karl Pauls
[email protected]
