Examples with ConfigurationElement org.datanucleus.plugin.ConfigurationElement used on opensource projects

Example 6 with ConfigurationElement

use of org.datanucleus.plugin.ConfigurationElement in project datanucleus-core by datanucleus.

the class ValueGenerationManagerImpl method supportsStrategy.

/* (non-Javadoc)
     * @see org.datanucleus.store.valuegenerator.ValueGenerationManager#supportsStrategy(java.lang.String)
     */
@Override
public boolean supportsStrategy(String strategy) {
    if (StringUtils.isWhitespace(strategy)) {
        return false;
    }
    // Built-in unique ValueGenerators
    if ("timestamp".equalsIgnoreCase(strategy) || "timestamp-value".equalsIgnoreCase(strategy) || "auid".equalsIgnoreCase(strategy) || "uuid".equalsIgnoreCase(strategy) || "uuid-object".equalsIgnoreCase(strategy) || "uuid-hex".equalsIgnoreCase(strategy) || "uuid-string".equalsIgnoreCase(strategy)) {
        return true;
    }
    PluginManager pluginMgr = storeMgr.getNucleusContext().getPluginManager();
    // Try plugin mechanism "unique" generators
    ConfigurationElement elem = pluginMgr.getConfigurationElementForExtension("org.datanucleus.store_valuegenerator", new String[] { "name", "unique" }, new String[] { strategy, "true" });
    if (elem != null) {
        // Unique strategy so supported for all datastores
        return true;
    }
    // Try plugin mechanism "datastore" (non-unique) generators
    elem = pluginMgr.getConfigurationElementForExtension("org.datanucleus.store_valuegenerator", new String[] { "name", "datastore" }, new String[] { strategy, storeMgr.getStoreManagerKey() });
    if (elem != null) {
        return true;
    }
    return false;
}

Example 7 with ConfigurationElement

use of org.datanucleus.plugin.ConfigurationElement in project datanucleus-core by datanucleus.

the class MetaDataEntityResolver method getRegisteredSchemas.

/**
 * The list of schemas registered in the plugin "metadata_entityresolver".
 * @return the Sources pointing to the .xsd files
 */
public Source[] getRegisteredSchemas() {
    ConfigurationElement[] elems = pluginMgr.getConfigurationElementsForExtension("org.datanucleus.metadata_entityresolver", null, null);
    Set<Source> sources = new HashSet<>();
    for (int i = 0; i < elems.length; i++) {
        if (elems[i].getAttribute("type") == null) {
            InputStream in = MetaDataParser.class.getResourceAsStream(elems[i].getAttribute("url"));
            if (in == null) {
                NucleusLogger.METADATA.warn("local resource \"" + elems[i].getAttribute("url") + "\" does not exist!!!");
            }
            sources.add(new StreamSource(in));
        }
    }
    return sources.toArray(new Source[sources.size()]);
}

Example 8 with ConfigurationElement

use of org.datanucleus.plugin.ConfigurationElement in project datanucleus-core by datanucleus.

the class ValueGenerationManagerImpl method createValueGenerator.

/* (non-Javadoc)
     * @see org.datanucleus.store.valuegenerator.ValueGenerationManager#createValueGenerator(java.lang.String, java.lang.Class, java.util.Properties, org.datanucleus.store.valuegenerator.ValueGenerationConnectionProvider)
     */
@Override
public ValueGenerator createValueGenerator(String strategyName, String seqName, Properties props, ValueGenerationConnectionProvider connectionProvider) {
    PluginManager pluginMgr = storeMgr.getNucleusContext().getPluginManager();
    ConfigurationElement elem = pluginMgr.getConfigurationElementForExtension("org.datanucleus.store_valuegenerator", new String[] { "name", "datastore" }, new String[] { strategyName, storeMgr.getStoreManagerKey() });
    Class generatorClass = (elem != null) ? pluginMgr.loadClass(elem.getExtension().getPlugin().getSymbolicName(), elem.getAttribute("class-name")) : null;
    if (generatorClass == null) {
        throw new NucleusException("Cannot create ValueGenerator for strategy " + seqName);
    }
    // Create the requested generator TODO If using plugin mechanism, should use createExecutableExtension
    ValueGenerator generator;
    try {
        if (NucleusLogger.VALUEGENERATION.isDebugEnabled()) {
            NucleusLogger.VALUEGENERATION.debug(Localiser.msg("040001", generatorClass.getName(), seqName));
        }
        Class[] argTypes = new Class[] { StoreManager.class, String.class, Properties.class };
        Object[] args = new Object[] { storeMgr, seqName, props };
        Constructor ctor = generatorClass.getConstructor(argTypes);
        generator = (ValueGenerator) ctor.newInstance(args);
    } catch (Exception e) {
        NucleusLogger.VALUEGENERATION.error(e);
        throw new ValueGenerationException(Localiser.msg("040000", generatorClass.getName(), e), e);
    }
    if (generator instanceof AbstractConnectedGenerator) {
        // Set the store manager and connection provider for any datastore-based generators
        ((AbstractConnectedGenerator) generator).setConnectionProvider(connectionProvider);
    }
    return generator;
}

Example 9 with ConfigurationElement

use of org.datanucleus.plugin.ConfigurationElement in project datanucleus-core by datanucleus.

the class ValueGenerationManagerImpl method getTypeForValueGeneratorForMember.

/* (non-Javadoc)
     * @see org.datanucleus.store.valuegenerator.ValueGenerationManager#getTypeForValueGeneratorForMember(java.lang.String, java.lang.String)
     */
@Override
public Class getTypeForValueGeneratorForMember(String strategyName, String memberKey) {
    // Find the generator class for this strategy
    Class generatorClass = null;
    ValueGenerator generator = generatorsByMemberKey.get(memberKey);
    if (generator == null) {
        // No generator assigned to this member key, so check for a unique generator
        generator = uniqueGeneratorsByName.get(strategyName);
    }
    if (generator != null) {
        generatorClass = generator.getClass();
    } else {
        // Check the plugin mechanism for a generator for this strategy
        try {
            ConfigurationElement elem = storeMgr.getNucleusContext().getPluginManager().getConfigurationElementForExtension("org.datanucleus.store_valuegenerator", new String[] { "name", "datastore" }, new String[] { strategyName, storeMgr.getStoreManagerKey() });
            generatorClass = (elem != null) ? storeMgr.getNucleusContext().getPluginManager().loadClass(elem.getExtension().getPlugin().getSymbolicName(), elem.getAttribute("class-name")) : null;
        } catch (Exception e) {
        }
    }
    if (generatorClass != null) {
        Class valueGeneratedType = null;
        try {
            // Use "getStorageClass" method if available
            valueGeneratedType = (Class) generatorClass.getMethod("getStorageClass").invoke(null);
        } catch (Exception e) {
            if (generatorClass.getGenericSuperclass() instanceof ParameterizedType) {
                // TODO Improve this so it works always and so we don't need "getStorageClass" method (i.e what generic type is provided to AbstractGenerator?)
                ParameterizedType parameterizedType = (ParameterizedType) generatorClass.getGenericSuperclass();
                valueGeneratedType = (Class) parameterizedType.getActualTypeArguments()[0];
            }
        }
        return valueGeneratedType;
    }
    return null;
}