Example usage for javax.persistence.spi PersistenceUnitInfo getPersistenceProviderClassName

Introduction

In this page you can find the example usage for javax.persistence.spi PersistenceUnitInfo getPersistenceProviderClassName.

Prototype

public String getPersistenceProviderClassName();

Source Link

Document

Returns the fully qualified name of the persistence provider implementation class.

Usage

From source file:org.apache.openjpa.persistence.PersistenceProductDerivation.java

/**
 * Return whether the given persistence unit uses an OpenJPA provider.
 *//*from   w w  w  .  j a v  a 2 s .c o m*/
private static boolean isOpenJPAPersistenceProvider(PersistenceUnitInfo pinfo, ClassLoader loader) {
    String provider = pinfo.getPersistenceProviderClassName();
    if (StringUtils.isEmpty(provider) || PersistenceProviderImpl.class.getName().equals(provider))
        return true;

    if (loader == null)
        loader = (ClassLoader) AccessController.doPrivileged(J2DoPrivHelper.getContextClassLoaderAction());
    try {
        if (PersistenceProviderImpl.class.isAssignableFrom(Class.forName(provider, false, loader)))
            return true;
    } catch (Throwable t) {
        log(_loc.get("unloadable-provider", provider, t).getMessage());
        return false;
    }
    return false;
}

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From source file:org.apache.openjpa.persistence.PersistenceProductDerivation.java

/**
 * Warn the user that we could only find an unrecognized persistence 
 * provider.//from  w w  w.j a  va 2  s .c  o  m
 */
private static void warnUnknownProvider(PersistenceUnitInfo pinfo) {
    log(_loc.get("unrecognized-provider", pinfo.getPersistenceProviderClassName()).getMessage());
}

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From source file:org.kie.server.services.jbpm.JbpmKieServerExtension.java

protected EntityManagerFactory build(Map<String, String> properties) {
    try {// w ww  . j  av a 2  s  . co m
        InitialContext ctx = new InitialContext();
        InputStream inputStream = PersistenceUnitInfoLoader.class.getResourceAsStream(PERSISTENCE_XML_LOCATION);
        PersistenceUnitInfo info = PersistenceUnitInfoLoader.load(inputStream, ctx,
                this.getClass().getClassLoader());
        // prepare persistence unit root location
        URL root = PersistenceUnitInfoLoader.class.getResource(PERSISTENCE_XML_LOCATION);
        String jarLocation = root.toExternalForm().split("!")[0].replace(PERSISTENCE_XML_LOCATION, "");
        try {
            ((PersistenceUnitInfoImpl) info).setPersistenceUnitRootUrl(new URL(jarLocation));
        } catch (Exception e) {
            // in case setting URL to jar file location only fails, fallback to complete URL
            ((PersistenceUnitInfoImpl) info).setPersistenceUnitRootUrl(root);
        }
        // Need to explicitly set jtaDataSource here, its value is fetched in Hibernate logger before configuration
        ((PersistenceUnitInfoImpl) info).setJtaDataSource(properties.get("javax.persistence.jtaDataSource"));
        List<PersistenceProvider> persistenceProviders = PersistenceProviderResolverHolder
                .getPersistenceProviderResolver().getPersistenceProviders();
        PersistenceProvider selectedProvider = null;
        if (persistenceProviders != null) {
            for (PersistenceProvider provider : persistenceProviders) {
                if (provider.getClass().getName().equals(info.getPersistenceProviderClassName())) {
                    selectedProvider = provider;
                    break;
                }
            }
        }

        return selectedProvider.createContainerEntityManagerFactory(info, properties);
    } catch (Exception e) {
        throw new RuntimeException("Unable to create EntityManagerFactory due to " + e.getMessage(), e);
    }
}

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