Package org.apache.openjpa.lib.util

Examples of org.apache.openjpa.lib.util.MultiClassLoader

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    /**
     * Automatically load global values from the system's
     * {@link ProductDerivation}s, and from System properties.
     */
    public boolean loadGlobals() {
        MultiClassLoader loader = AccessController
            .doPrivileged(J2DoPrivHelper.newMultiClassLoaderAction());
        loader.addClassLoader(AccessController.doPrivileged(
            J2DoPrivHelper.getContextClassLoaderAction()));
        loader.addClassLoader(getClass().getClassLoader());
        ConfigurationProvider provider = ProductDerivations.loadGlobals(loader);
        if (provider != null)
            provider.setInto(this);

        // let system properties override other globals
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        if (_preloadComplete == true) {
            return;
        }


        MultiClassLoader multi = AccessController.doPrivileged(J2DoPrivHelper.newMultiClassLoaderAction());
        multi.addClassLoader(AccessController.doPrivileged(J2DoPrivHelper.getContextClassLoaderAction()));
        multi.addClassLoader(AccessController.doPrivileged(J2DoPrivHelper
            .getClassLoaderAction(MetaDataRepository.class)));
        // If a ClassLoader was passed into Persistence.createContainerEntityManagerFactory on the PersistenceUnitInfo
        // we need to add that loader to the chain of classloaders
        ClassResolver resolver = _conf.getClassResolverInstance();
        if (resolver != null) {
            ClassLoader cl = resolver.getClassLoader(null, null);
            if (cl != null) {
                multi.addClassLoader(cl);
            }
        }

        Set<String> classes = getPersistentTypeNames(false, multi);
        if (classes == null || classes.size() == 0) {
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            _jarFileNames.clear();
        }
    }
   
    public void validateJarFileName(String name) {
        MultiClassLoader loader = AccessController
            .doPrivileged(J2DoPrivHelper.newMultiClassLoaderAction());
        loader.addClassLoader(getClass().getClassLoader());
        loader.addClassLoader(MultiClassLoader.THREAD_LOADER);
        URL url = AccessController.doPrivileged(
            J2DoPrivHelper.getResourceAction(loader, name));
        if (url != null) {
            addJarFile(url);
            return;
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        // spring needs to use the envLoader first for all class resolution,
        // but we must still fall back on application loader
        ClassLoader loader = repos.getConfiguration().
            getClassResolverInstance().getClassLoader(cls, null);
        if (envLoader != null && envLoader != loader) {
          MultiClassLoader mult = new MultiClassLoader();
          mult.addClassLoader(envLoader);

          // loader from resolver is usually a multi loader itself
          if (loader instanceof MultiClassLoader)
            mult.addClassLoaders((MultiClassLoader)loader);
          else
            mult.addClassLoader(loader);
          loader = mult;
        }
   
        XMLPersistenceMetaDataParser xmlParser = getXMLParser();
        xmlParser.setClassLoader(loader);
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        }
    }
   
    public void validateJarFileName(String name) {
        ClassLoader contextClassLoader = AccessController.doPrivileged(J2DoPrivHelper.getContextClassLoaderAction());
        MultiClassLoader loader = AccessController
            .doPrivileged(J2DoPrivHelper.newMultiClassLoaderAction());
        loader.addClassLoader(contextClassLoader);
        loader.addClassLoader(getClass().getClassLoader());
        loader.addClassLoader(MultiClassLoader.THREAD_LOADER);
        URL url = AccessController.doPrivileged(
            J2DoPrivHelper.getResourceAction(loader, name));
        if (url != null) {
            addJarFile(url);
            return;
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        // Process jar-file references after confirming OpenJPA is the desired JPA provider.
        if ( loader != contextLoader && loader instanceof MultiClassLoader) {
            // combine the MultiClassLoader and set to the context
            // so that it could be used in the jar validation
            MultiClassLoader mutliClassLoader = (MultiClassLoader) loader;
            contextLoader = (contextLoader != null) ? contextLoader
                    : AccessController.doPrivileged(J2DoPrivHelper.getContextClassLoaderAction());
            mutliClassLoader.addClassLoader(contextLoader);
            AccessController.doPrivileged(J2DoPrivHelper.setContextClassLoaderAction(mutliClassLoader));
        }
        pinfo.processJarFileNames();

        if (contextLoader != null) {
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        if (_preloadComplete == true) {
            return;
        }


        MultiClassLoader multi = AccessController.doPrivileged(J2DoPrivHelper.newMultiClassLoaderAction());
        multi.addClassLoader(AccessController.doPrivileged(J2DoPrivHelper.getContextClassLoaderAction()));
        multi.addClassLoader(AccessController.doPrivileged(J2DoPrivHelper
            .getClassLoaderAction(MetaDataRepository.class)));
        // If a ClassLoader was passed into Persistence.createContainerEntityManagerFactory on the PersistenceUnitInfo
        // we need to add that loader to the chain of classloaders
        ClassResolver resolver = _conf.getClassResolverInstance();
        if (resolver != null) {
            ClassLoader cl = resolver.getClassLoader(null, null);
            if (cl != null) {
                multi.addClassLoader(cl);
            }
        }

        Set<String> classes = getPersistentTypeNames(false, multi);
        if (classes == null || classes.size() == 0) {
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        // spring needs to use the envLoader first for all class resolution,
        // but we must still fall back on application loader
        ClassLoader loader = repos.getConfiguration().
            getClassResolverInstance().getClassLoader(cls, null);
        if (envLoader != null && envLoader != loader) {
          MultiClassLoader mult = new MultiClassLoader();
          mult.addClassLoader(envLoader);

          // loader from resolver is usually a multi loader itself
          if (loader instanceof MultiClassLoader)
            mult.addClassLoaders((MultiClassLoader)loader);
          else
            mult.addClassLoader(loader);
          loader = mult;
        }
   
        XMLPersistenceMetaDataParser xmlParser = getXMLParser();
        xmlParser.setClassLoader(loader);
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        // If pooling EMFs, this method may be invoked more than once. Only perform this work once.
        if (_preloadComplete == true) {
            return;
        }

        MultiClassLoader multi = AccessController.doPrivileged(J2DoPrivHelper.newMultiClassLoaderAction());
        multi.addClassLoader(AccessController.doPrivileged(J2DoPrivHelper.getContextClassLoaderAction()));
        multi.addClassLoader(AccessController.doPrivileged(J2DoPrivHelper
            .getClassLoaderAction(MetaDataRepository.class)));

        Set<String> classes = getPersistentTypeNames(false, multi);
        if (classes == null || classes.size() == 0) {
            throw new MetaDataException(_loc.get("repos-initializeEager-none"));
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            _jarFiles = new ArrayList<URL>();
        _jarFiles.add(jar);
    }

    public void addJarFileName(String name) {
        MultiClassLoader loader = AccessController
            .doPrivileged(J2DoPrivHelper.newMultiClassLoaderAction());
        loader.addClassLoader(getClass().getClassLoader());
        loader.addClassLoader(MultiClassLoader.THREAD_LOADER);
        URL url = AccessController.doPrivileged(
            J2DoPrivHelper.getResourceAction(loader, name));
        if (url != null) {
            addJarFile(url);
            return;
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Related Classes of org.apache.openjpa.lib.util.MultiClassLoader

  • org.apache.openjpa.lib.ant.AbstractTask
  • org.apache.openjpa.lib.conf.ConfigurationImpl
  • org.apache.openjpa.lib.meta.ClassMetaDataIterator
  • org.apache.openjpa.lib.meta.ResourceMetaDataIterator
  • org.apache.openjpa.meta.MetaDataRepository
  • org.apache.openjpa.persistence.PersistenceMetaDataFactory
  • org.apache.openjpa.persistence.PersistenceProductDerivation
  • org.apache.openjpa.persistence.PersistenceUnitInfoImpl
  • org.apache.openjpa.util.ClassResolverImpl
  • org.apache.openjpa.util.Serialization$ClassResolvingObjectInputStream
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