Hello, That seems to be OK :)
osgi> p org.apache.openjpa.persistence org.apache.openjpa.persistence; version="0.0.0"<openjpa_all_2.4.2_1.0.0 [132]> org.apache.openjpa.persistence; version="2.3.0"<tomee_1.7.2.wso2v2 [632]> compass_2.0.1.wso2v2 [54] imports tomcat_7.0.75.wso2v1 [627] imports osgi> ss openjpa "Framework is launched." id State Bundle 132 ACTIVE openjpa_all_2.4.2_1.0.0 osgi> So, I deployed my little JPA project and I can see that my package is "registered": osgi> p my.little.project.jpa my.little.project.jpa; version="1.0.0"<mylittleproject-jpa_1.0.0 [60]> synapse-core_2.1.7.wso2v13 [619] imports osgi> So I tried to invoke my class to retrieve an EntityManager and now, I have: javax.persistence.PersistenceException: Failed to load provider from META-INF/services I think that it is because the services/ directory in the META-INF in the openjpa bundle is not parsed and I don't know what to do because this is not me who generate the OSGi bundle but the ESB at startup. Do you have an idea? Regards, Thomas 2017-05-04 20:37 GMT+02:00 KasunG Gajasinghe <[email protected]>: > > I do not think openjpa register any osgi services. Can you check whether > the package is exposed? Also verify the status of the openjpa bundle. > > osgi> p org.apache.openjpa.persistence > osgi> ss openjpa > > On Thu, May 4, 2017 at 7:01 PM, Thomas LEGRAND < > [email protected]> wrote: > >> Hello again :) >> >> I retrieved the openjpa-all-2.4.2.jar file and dropped it in the >> <WSO2_ESB_HOME>/lib >> directory to let the runtime taking care of the bundle generation during >> the startup. The effect was the generation of the file >> openjpa_all_2.4.2_1.0.0.jar in the directory <WSO2_ESB_HOME>/dropins. >> >> I restarted the EI with: >> >> D:\ProjetESB\wso2ei-6.0.0\bin> .\integrator.bat -DosgiConsole=19444 >> >> So I can connect to the OSGI console via telnet. But, when I try to >> retrieve the objectclasses starting with org.apache.openjpa.*, I have >> nothing :( >> >> osgi> services (objectclass=org.apache.openjpa.*) >> "No registered services." >> >> Am I missing something? >> >> Regards, >> >> Thomas >> >> 2017-05-04 10:49 GMT+02:00 KasunG Gajasinghe <[email protected]>: >> >>> Hi Thomas, >>> >>> Well, the connector itself cannot be deployed as an osgi bundle. But, >>> you can call classes in osgi bundles from your connector. So, place your >>> JPA logic in an osgi bundle and add it to dropins/ folder. Then, call that >>> from your connector. >>> >>> This should give you flexibility over your classloading. I cannot >>> comment on JPA stuff though. >>> >>> On Thu, May 4, 2017 at 1:26 PM, Thomas LEGRAND < >>> [email protected]> wrote: >>> >>>> Hello KasunG, >>>> >>>> I forgot to mention that I am using wso2ei-6.0.0. >>>> >>>> During the build of my connector, I noticed that a .jar is created with >>>> the .zip for the connector so I tried to deploy it. Actually, I tried the >>>> following directories and my sequence does not find any of the components >>>> like if my connector was not deployed : >>>> - <WSO2_ESB_HOME>/repository/components/dropins (this directory did >>>> not exist so I created it) >>>> - <WSO2_ESB_HOME>/dropins >>>> >>>> In addition, I don't find anything in the documentation mentioning that >>>> we can deploy connectors as an OSGi bundle :( >>>> >>>> When I deploy the .zip of the connector via the interface, it is >>>> deployed in <WSO2_ESB_HOME>/repository/deployment/server/synapse-libs >>>> which is the same directory used by Synapse: >>>> http://synapse.apache.org/userguide/template_library.html >>>> >>>> Concerning the "architecture" of my component, I deployed a .zip with a >>>> META-INF directory containing the persistence.xml but I don't think it is >>>> used like the absence of mention in the Synaspe documentation above. :) >>>> Then, I call OpenJPA with the following lines: >>>> >>>> EntityManagerFactory emf = Persistence.createEntityManage >>>> rFactory("my-pu"); >>>> EntityManager mgr = emf.createEntityManager(); >>>> >>>> But then, I have the exception. >>>> >>>> I made a topic on StackOverflow one or two weeks ago: >>>> https://stackoverflow.com/questions/43538743/wso2-is-there-a >>>> -way-to-use-jpa-in-a-custom-connector >>>> >>>> I you know a documentation to generate an OSGi bundle for a connector, >>>> I am very interested. :) >>>> >>>> Regards, >>>> >>>> Thomas >>>> >>>> 2017-05-03 18:29 GMT+02:00 KasunG Gajasinghe <[email protected]>: >>>> >>>>> You are working in an OSGi environment, so you need to be thinking >>>>> from the osgi classloading perspective. Each osgi bundle under >>>>> repository/components/{plugins,dropins} has its own classloader and a >>>>> classpath. >>>>> >>>>> Hence, the place you put your persistence.xml is important. I'm not >>>>> sure how you call OpenJPA, so I cannot comment on what steps to follow. >>>>> But >>>>> in essence, re-build your connector as an osgi bundle (its just a jar with >>>>> a set of manifest entries in MANIFEST.MF), and place it in >>>>> repository/components/dropins. I have not tested this myself though. >>>>> >>>>> Regards, >>>>> KasunG >>>>> >>>>> >>>>> On Wed, May 3, 2017 at 8:38 PM, Thomas LEGRAND < >>>>> [email protected]> wrote: >>>>> >>>>>> Hello everybody, >>>>>> >>>>>> I am currently writing a custom connector to retrieve information >>>>>> from a database. Because the mediators to do so does not fit my needs, I >>>>>> am >>>>>> using a custom Java class which is currently implemented to retrieve a >>>>>> DataSource via the JNDI name I configured in the ESB interface. That >>>>>> works >>>>>> nicely :) >>>>>> >>>>>> But then, for maintenance purpose, I would like to use JPA >>>>>> (preferably, the OpenJPA implementation :)) but it is like the >>>>>> persistence.xml is not even read. :( >>>>>> My libraries are placed in the lib/ directory in the generated zip of >>>>>> my connector and I don't have any problem using the classes of OpenJPA. >>>>>> Actually, just this error message appears: >>>>>> >>>>>> 1 INFO [PassThroughMessageProcessor-313] openjpa.Runtime - Starting >>>>>> OpenJPA 2.4.0 org.apache.openjpa.persistence.ArgumentException: The >>>>>> persistence provi der is attempting to use properties in the >>>>>> persistence.xml file to resolve the data source. A Java Database >>>>>> Connectivity (JDBC) driver or data source class name must be specified in >>>>>> the openjpa.ConnectionDriverName or javax.persistence.jdbc.driver >>>>>> property. >>>>>> The following properties are available in the configuration: >>>>>> "org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl@442ce698". >>>>>> >>>>>> In the persistence.xml, you have the following content : >>>>>> >>>>>> <?xml version="1.0" encoding="UTF-8"?> >>>>>> <persistence version="2.0" xmlns="http://java.sun.com/xml >>>>>> /ns/persistence" >>>>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; >>>>>> xsi:schemaLocation="http://java.sun.com/xml/ns/persistence >>>>>> http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd";> >>>>>> <persistence-unit name="my-pu" transaction-type="RESOURCE_LOCAL"> >>>>>> <provider>org.apache.openjpa.persistence.PersistenceProvider >>>>>> Impl</provider> >>>>>> <jta-data-source>jdbc/MyDataSource</jta-data-source> >>>>>> </persistence-unit> >>>>>> </persistence> >>>>>> >>>>>> Is there some hidden magic to make it work? >>>>>> >>>>>> Thank you :) >>>>>> >>>>>> Regards, >>>>>> >>>>>> Thomas >>>>>> >>>>>> _______________________________________________ >>>>>> Dev mailing list >>>>>> [email protected] >>>>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> >>>>> *Kasun Gajasinghe*Associate Technical Lead, WSO2 Inc. >>>>> email: kasung AT spamfree wso2.com >>>>> linked-in: http://lk.linkedin.com/in/gajasinghe >>>>> blog: http://kasunbg.org >>>>> phone: +1 650-745-4499 <(650)%20745-4499>, 77 678 0813 >>>>> >>>>> >>>> >>>> >>> >>> >>> -- >>> >>> *Kasun Gajasinghe*Associate Technical Lead, WSO2 Inc. >>> email: kasung AT spamfree wso2.com >>> linked-in: http://lk.linkedin.com/in/gajasinghe >>> blog: http://kasunbg.org >>> phone: +1 650-745-4499 <(650)%20745-4499>, 77 678 0813 >>> >>> >> >> > > > -- > > *Kasun Gajasinghe*Associate Technical Lead, WSO2 Inc. > email: kasung AT spamfree wso2.com > linked-in: http://lk.linkedin.com/in/gajasinghe > blog: http://kasunbg.org > phone: +1 650-745-4499 <(650)%20745-4499>, 77 678 0813 > >
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