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 <kas...@wso2.com>: > 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 < > thomas.legr...@versusmind.eu> 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/user >> guide/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 <kas...@wso2.com>: >> >>> 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 < >>> thomas.legr...@versusmind.eu> 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 >>>> Dev@wso2.org >>>> 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 > >
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