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

Example 1 with ExtensionPoint

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

the class OSGiBundleParser method parsePluginElements.

/**
 * Method to parse Extensions in plug-in file.
 * @param db DocumentBuilder to use for parsing
 * @param mgr the PluginManager
 * @param fileUrl URL of the plugin.xml file
 * @param plugin The Bundle
 * @param osgiBundle The OSGi Bundle
 * @return array of 2 elements. first element is a List of extensionPoints, and 2nd element is a List of
 * Extension
 * @throws NucleusException if an error occurs during parsing
 */
public static List[] parsePluginElements(DocumentBuilder db, PluginRegistry mgr, URL fileUrl, Bundle plugin, org.osgi.framework.Bundle osgiBundle) {
    List<ExtensionPoint> extensionPoints = Collections.emptyList();
    List<Extension> extensions = Collections.emptyList();
    InputStream is = null;
    InputStreamReader isr = null;
    try {
        is = fileUrl.openStream();
        isr = new InputStreamReader(is);
        Element rootElement = db.parse(new InputSource(isr)).getDocumentElement();
        if (NucleusLogger.GENERAL.isDebugEnabled()) {
            NucleusLogger.GENERAL.debug(Localiser.msg("024003", fileUrl.toString()));
        }
        extensionPoints = parseExtensionPoints(rootElement, plugin, osgiBundle);
        if (NucleusLogger.GENERAL.isDebugEnabled()) {
            NucleusLogger.GENERAL.debug(Localiser.msg("024004", fileUrl.toString()));
        }
        extensions = parseExtensions(rootElement, plugin, osgiBundle);
    } catch (NucleusException ex) {
        throw ex;
    } catch (Exception e) {
        NucleusLogger.GENERAL.error(Localiser.msg("024000", fileUrl.getFile()));
    } finally {
        if (isr != null) {
            try {
                isr.close();
            } catch (IOException e) {
            }
        }
        if (is != null) {
            try {
                is.close();
            } catch (IOException e) {
            }
        }
    }
    return new List[] { extensionPoints, extensions };
}

Example 2 with ExtensionPoint

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

the class OSGiPluginRegistry method registerExtensions.

public void registerExtensions() {
    if (extensionPoints.length > 0) {
        return;
    }
    List registeringExtensions = new ArrayList();
    org.osgi.framework.Bundle bdl = FrameworkUtil.getBundle(this.getClass());
    BundleContext ctx = bdl.getBundleContext();
    if (ctx == null) {
        // TODO Any way we can handle this better? e.g force OSGi to start it?
        NucleusLogger.GENERAL.error("Bundle " + bdl.getSymbolicName() + " is in state " + bdl.getState() + " and has NULL context, so cannot register it properly!");
    } else {
        // parse the plugin files
        DocumentBuilder docBuilder = OSGiBundleParser.getDocumentBuilder();
        org.osgi.framework.Bundle[] osgiBundles = ctx.getBundles();
        for (org.osgi.framework.Bundle osgiBundle : osgiBundles) {
            URL pluginURL = osgiBundle.getEntry("plugin.xml");
            if (pluginURL == null) {
                continue;
            }
            Bundle bundle = registerBundle(osgiBundle);
            if (bundle == null) {
                // No MANIFEST.MF for this plugin.xml so ignore it
                continue;
            }
            List[] elements = OSGiBundleParser.parsePluginElements(docBuilder, this, pluginURL, bundle, osgiBundle);
            registerExtensionPointsForPluginInternal(elements[0], false);
            registeringExtensions.addAll(elements[1]);
        }
    }
    extensionPoints = extensionPointsByUniqueId.values().toArray(new ExtensionPoint[extensionPointsByUniqueId.values().size()]);
    // Register the extensions now that we have the extension-points all loaded
    for (int i = 0; i < registeringExtensions.size(); i++) {
        Extension extension = (Extension) registeringExtensions.get(i);
        ExtensionPoint exPoint = getExtensionPoint(extension.getExtensionPointId());
        if (exPoint == null) {
            if (extension.getPlugin() != null && extension.getPlugin().getSymbolicName() != null && extension.getPlugin().getSymbolicName().startsWith(DATANUCLEUS_PKG)) {
                NucleusLogger.GENERAL.warn(Localiser.msg("024002", extension.getExtensionPointId(), extension.getPlugin().getSymbolicName(), extension.getPlugin().getManifestLocation()));
            }
        } else {
            extension.setExtensionPoint(exPoint);
            exPoint.addExtension(extension);
        }
    }
}

Example 3 with ExtensionPoint

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

the class PluginParserTest method testParseExtensionPoint.

public void testParseExtensionPoint() {
    ClassLoaderResolver clr = new ClassLoaderResolverImpl();
    NonManagedPluginRegistry mgr = new NonManagedPluginRegistry(clr, "EXCEPTION", true);
    assertEquals(0, mgr.getExtensionPoints().length);
    Bundle bundle0 = mgr.registerBundle(clr.getResource("/org/datanucleus/samples/plugin/MANIFEST0.MF", null));
    mgr.registerExtensionsForPlugin(clr.getResource("/org/datanucleus/samples/plugin/plugin1expoint.xml", null), bundle0);
    assertEquals(2, mgr.getExtensionPoints().length);
    assertNull(mgr.getExtensionPoint("testID"));
    assertNull(mgr.getExtensionPoint("testID2"));
    assertNotNull(mgr.getExtensionPoint("org.datanucleus.testID"));
    assertNotNull(mgr.getExtensionPoint("org.datanucleus.testID2"));
    ExtensionPoint point = mgr.getExtensionPoint("org.datanucleus.testID");
    assertEquals("testID", point.getId());
    assertEquals("org.datanucleus.testID", point.getUniqueId());
    assertEquals("testName", point.getName());
    assertNotNull(clr.getResource("/org/datanucleus/samples/plugin/plugin1.xsd", null));
    assertEquals(clr.getResource("/org/datanucleus/samples/plugin/plugin1.xsd", null), point.getSchema());
    assertEquals(0, point.getExtensions().length);
    mgr.registerExtensionsForPlugin(clr.getResource("/org/datanucleus/samples/plugin/plugin1.xml", null), bundle0);
    assertEquals(2, point.getExtensions().length);
    Extension[] exts = point.getExtensions();
    assertEquals(exts[0].getPlugin(), exts[1].getPlugin());
    assertEquals(2, exts[0].getConfigurationElements().length);
    ConfigurationElement[] level1 = exts[0].getConfigurationElements();
    assertEquals(2, level1[0].getChildren().length);
    assertEquals("level1", level1[0].getName());
    assertEquals(1, level1[0].getAttributeNames().length);
    assertEquals("1", level1[0].getAttribute("attr11"));
    assertNull(level1[0].getAttribute("attr11XXX"));
    ConfigurationElement[] level2 = level1[0].getChildren();
    assertEquals(1, level2[0].getChildren().length);
    assertEquals("level2", level2[0].getName());
    assertEquals(2, level2[0].getAttributeNames().length);
    assertEquals("attr21", level2[0].getAttributeNames()[0]);
    assertEquals("attr22", level2[0].getAttributeNames()[1]);
    assertEquals("2211", level2[0].getAttribute("attr21"));
    assertEquals("2221", level2[0].getAttribute("attr22"));
    assertNull(level2[0].getAttribute("attr11XXX"));
    assertEquals(0, level1[1].getChildren().length);
    assertEquals("2", level1[1].getAttribute("attr11"));
    assertEquals(1, exts[1].getConfigurationElements().length);
    level1 = exts[1].getConfigurationElements();
    assertEquals("A", level1[0].getAttribute("attr11"));
    assertEquals(0, level1[0].getChildren().length);
}

Example 4 with ExtensionPoint

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

the class OSGiBundleParser method parseExtensionPoints.

/**
 * Method to parse ExtensionPoints from plug-in file
 * @param rootElement the root element of the plugin xml
 * @param plugin the plugin bundle
 * @param clr the ClassLoaderResolver
 * @return a List of extensionPoints, if any
 * @throws NucleusException if an error occurs during parsing
 */
private static List<ExtensionPoint> parseExtensionPoints(Element rootElement, Bundle plugin, org.osgi.framework.Bundle osgiBundle) {
    List<ExtensionPoint> extensionPoints = new ArrayList<ExtensionPoint>();
    try {
        NodeList elements = rootElement.getElementsByTagName("extension-point");
        for (int i = 0; i < elements.getLength(); i++) {
            Element element = (Element) elements.item(i);
            String id = element.getAttribute("id").trim();
            String name = element.getAttribute("name");
            String schema = element.getAttribute("schema");
            extensionPoints.add(new ExtensionPoint(id, name, osgiBundle.getEntry(schema), plugin));
        }
    } catch (NucleusException ex) {
        throw ex;
    }
    return extensionPoints;
}

Example 5 with ExtensionPoint

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

the class OSGiPluginRegistry method registerExtensionPointsForPluginInternal.

/**
 * Register extension-points for the specified plugin.
 * @param extPoints ExtensionPoints for this plugin
 * @param updateExtensionPointsArray Whether to update "extensionPoints" array
 */
protected void registerExtensionPointsForPluginInternal(List extPoints, boolean updateExtensionPointsArray) {
    // Register extension-points
    Iterator<ExtensionPoint> pluginExtPointIter = extPoints.iterator();
    while (pluginExtPointIter.hasNext()) {
        ExtensionPoint exPoint = pluginExtPointIter.next();
        extensionPointsByUniqueId.put(exPoint.getUniqueId(), exPoint);
    }
    if (updateExtensionPointsArray) {
        extensionPoints = extensionPointsByUniqueId.values().toArray(new ExtensionPoint[extensionPointsByUniqueId.values().size()]);
    }
}