Examples of org.apache.openejb.config.provider.ProviderManager

Package org.apache.openejb.config.provider

Examples of org.apache.openejb.config.provider.ProviderManager

org.apache.openejb.config.provider.ProviderManager
A few principles guide this new implementation of ServiceProvider tracking
1. Never expose the raw datastructure underneath so providers must be registered via the "front door" and can't be slipped in without proper parent provider resolution.
2. How to locate providers from disk or parse xml is completely abstracted from this implementation. @version $Rev$ $Date$


    public static Messages messages = new Messages("org.apache.openejb.util.resources");
    public static Logger logger = Logger.getInstance(LogCategory.OPENEJB, "org.apache.openejb.util.resources");


    public static ProviderManager getManager() {
        final ProviderManager manager = SystemInstance.get().getComponent(ProviderManager.class);
        if (manager != null) {
            return manager;
        }


        SystemInstance.get().setComponent(ProviderManager.class, new ProviderManager(new ServiceJarXmlLoader()));
        return getManager();
    }

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 * @version $Rev$ $Date$
 */
public class ProviderGenerator extends Resource {


    public static void main(final String[] args) throws Exception {
        final ProviderManager manager = new ProviderManager(new ServiceJarXmlLoader());


        final Set<String> seen = new HashSet<String>();


        final List<ServiceProvider> providers = manager.load("org.apache.openejb");
        for (final ServiceProvider provider : providers) {
            final List<String> types = provider.getTypes();
            final String name = guessBuilder(types);
            final String builder = name + "Builder";

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/**
 * @version $Rev$ $Date$
 */
public class ProviderManagerTest extends TestCase {
    public void testRegister() throws Exception {
        final ProviderManager manager = new ProviderManager(new ProviderLoader() {
            @Override
            public ServiceProvider load(final ID id) {
                return null;
            }


            @Override
            public List<ServiceProvider> load(final String namespace) {
                return null;
            }
        });


        { // Add Color
            final ServiceProvider color = new ServiceProvider(Color.class, "Color", "Resource");
            color.getProperties().setProperty("red", "0");
            color.getProperties().setProperty("green", "0");
            color.getProperties().setProperty("blue", "0");
            manager.register("default", color);
        }


        { // Assert Color
            // Must be able to retrieve provider and properties in a case-insensitive manner
            final ServiceProvider provider = manager.get("DeFaulT", "CoLoR");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("0", provider.getProperties().getProperty("rEd"));
            assertEquals("0", provider.getProperties().get("grEEn"));
            assertEquals("0", provider.getProperties().get("blUE"));
        }


        { // Add Red
            final ServiceProvider red = new ServiceProvider();
            red.setId("Red");
            red.setParent("Color");
            red.getProperties().setProperty("red", "255");
            manager.register("default", red);
        }


        { // Assert Red


            // Should have inherited green and blue values from Color


            final ServiceProvider provider = manager.get("dEFaulT", "REd");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("255", provider.getProperties().getProperty("rED"));
            assertEquals("0", provider.getProperties().get("grEEN"));
            assertEquals("0", provider.getProperties().get("bLUe"));
        }




        { // Add Orange
            final ServiceProvider orange = new ServiceProvider();
            orange.setId("Orange");
            orange.setParent("Red");
            orange.getProperties().setProperty("green", "200");
            manager.register("default", orange);
        }


        { // Assert Orange


            // Should have inherited from Red


            final ServiceProvider provider = manager.get("dEFAUlT", "orAngE");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("255", provider.getProperties().getProperty("reD"));
            assertEquals("200", provider.getProperties().get("grEeN"));
            assertEquals("0", provider.getProperties().get("bLue"));

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        }
    }


    public void testLoader() throws Exception {


        final ProviderManager manager = new ProviderManager(new ProviderLoader() {
            @Override
            public ServiceProvider load(final ID id) {
                if ("color".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider color = new ServiceProvider(Color.class, "Color", "Resource");
                    color.getProperties().setProperty("red", "0");
                    color.getProperties().setProperty("green", "0");
                    color.getProperties().setProperty("blue", "0");
                    return color;
                }


                if ("red".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider red = new ServiceProvider();
                    red.setId("Red");
                    red.setParent("Color");
                    red.getProperties().setProperty("red", "255");
                    return red;
                }


                if ("orange".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider orange = new ServiceProvider();
                    orange.setId("Orange");
                    orange.setParent("Red");
                    orange.getProperties().setProperty("green", "200");
                    return orange;
                }


                throw new IllegalStateException(id.toString());
            }


            @Override
            public List<ServiceProvider> load(final String namespace) {
                return null;
            }
        });


        assertEquals(0, manager.getAll().size());


        { // Assert Orange


            // Should have inherited from Red


            final ServiceProvider provider = manager.get("dEFAUlT", "orAngE");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("255", provider.getProperties().getProperty("reD"));
            assertEquals("200", provider.getProperties().get("grEeN"));
            assertEquals("0", provider.getProperties().get("bLue"));
        }


        { // Assert Red


            // Should have inherited green and blue values from Color


            final ServiceProvider provider = manager.get("dEFaulT", "REd");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("255", provider.getProperties().getProperty("rED"));
            assertEquals("0", provider.getProperties().get("grEEN"));
            assertEquals("0", provider.getProperties().get("bLUe"));
        }


        { // Assert Color
            // Must be able to retrieve provider and properties in a case-insensitive manner


            final ServiceProvider provider = manager.get("DeFaulT", "CoLoR");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("0", provider.getProperties().getProperty("rEd"));
            assertEquals("0", provider.getProperties().get("grEEn"));
            assertEquals("0", provider.getProperties().get("blUE"));
        }


        assertEquals(3, manager.getAll().size());
    }

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        assertEquals(3, manager.getAll().size());
    }


    public void testLoaderLoadNamespace() throws Exception {


        final ProviderManager manager = new ProviderManager(new ProviderLoader() {
            @Override
            public ServiceProvider load(final ID id) {
                if ("color".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider color = new ServiceProvider(Color.class, "Color", "Resource");
                    color.getProperties().setProperty("red", "0");
                    color.getProperties().setProperty("green", "0");
                    color.getProperties().setProperty("blue", "0");
                    return color;
                }


                if ("red".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider red = new ServiceProvider();
                    red.setId("Red");
                    red.setParent("Color");
                    red.getProperties().setProperty("red", "255");
                    return red;
                }


                if ("orange".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider orange = new ServiceProvider();
                    orange.setId("Orange");
                    orange.setParent("Red");
                    orange.getProperties().setProperty("green", "200");
                    return orange;
                }


                throw new IllegalStateException(id.toString());
            }


            @Override
            public List<ServiceProvider> load(final String namespace) {
                final List<ServiceProvider> list = new ArrayList<ServiceProvider>();
                list.add(load(new ID(namespace, "color")));
                list.add(load(new ID(namespace, "red")));
                list.add(load(new ID(namespace, "orange")));
                return list;
            }
        });


        assertEquals(0, manager.getAll().size());


        manager.get("default", "Color");


        assertEquals(1, manager.getAll().size());


        manager.load("default");


        assertEquals(3, manager.getAll().size());


        { // Assert Orange


            // Should have inherited from Red


            final ServiceProvider provider = manager.get("dEFAUlT", "orAngE");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("255", provider.getProperties().getProperty("reD"));
            assertEquals("200", provider.getProperties().get("grEeN"));
            assertEquals("0", provider.getProperties().get("bLue"));
        }


        { // Assert Red


            // Should have inherited green and blue values from Color


            final ServiceProvider provider = manager.get("dEFaulT", "REd");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("255", provider.getProperties().getProperty("rED"));
            assertEquals("0", provider.getProperties().get("grEEN"));
            assertEquals("0", provider.getProperties().get("bLUe"));
        }


        { // Assert Color
            // Must be able to retrieve provider and properties in a case-insensitive manner


            final ServiceProvider provider = manager.get("DeFaulT", "CoLoR");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("0", provider.getProperties().getProperty("rEd"));
            assertEquals("0", provider.getProperties().get("grEEn"));
            assertEquals("0", provider.getProperties().get("blUE"));
        }


        assertEquals(3, manager.getAll().size());
    }

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    }




    public void testCircularDependency() throws Exception {


        final ProviderManager manager = new ProviderManager(new ProviderLoader() {
            @Override
            public ServiceProvider load(final ID id) {
                if ("color".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider color = new ServiceProvider(Color.class, "Color", "Resource");
                    color.setParent("Orange");
                    color.getProperties().setProperty("red", "0");
                    color.getProperties().setProperty("green", "0");
                    color.getProperties().setProperty("blue", "0");
                    return color;
                }


                if ("red".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider red = new ServiceProvider();
                    red.setId("Red");
                    red.setParent("Color");
                    red.getProperties().setProperty("red", "255");
                    return red;
                }


                if ("orange".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider orange = new ServiceProvider();
                    orange.setId("Orange");
                    orange.setParent("Red");
                    orange.getProperties().setProperty("green", "200");
                    return orange;
                }


                throw new IllegalStateException(id.toString());
            }


            @Override
            public List<ServiceProvider> load(final String namespace) {
                return null;
            }
        });


        assertEquals(0, manager.getAll().size());


        try {
            manager.get("dEFAUlT", "orAngE");
            fail("ProviderCircularReferenceException should have been thrown");
        } catch (final ProviderCircularReferenceException e) {
            // pass
        }
    }

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        }
    }


    public void testInheritedAttributes() throws Exception {


        final ProviderManager manager = new ProviderManager(new ProviderLoader() {
            @Override
            public ServiceProvider load(final ID id) {
                if ("color".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider color = new ServiceProvider();
                    color.setClassName(Color.class.getName());
                    color.setFactoryName("fooFactory");
                    color.setId("Color");
                    color.setService("Resource");
                    color.setConstructor("one, two, three");
                    color.setDescription("the description");
                    color.setDisplayName("the display name");
                    color.getProperties().setProperty("red", "0");
                    color.getProperties().setProperty("green", "0");
                    color.getProperties().setProperty("blue", "0");
                    color.getTypes().add(Color.class.getName());
                    return color;
                }


                if ("red".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider red = new ServiceProvider();
                    red.setId("Red");
                    red.setParent("Color");
                    red.getProperties().setProperty("red", "255");
                    return red;
                }


                if ("orange".equalsIgnoreCase(id.getName())) {
                    final ServiceProvider orange = new ServiceProvider();
                    orange.setId("Orange");
                    orange.setParent("Red");
                    orange.getProperties().setProperty("green", "200");
                    return orange;
                }


                throw new IllegalStateException(id.toString());
            }


            @Override
            public List<ServiceProvider> load(final String namespace) {
                final List<ServiceProvider> list = new ArrayList<ServiceProvider>();
                list.add(load(new ID(namespace, "color")));
                list.add(load(new ID(namespace, "red")));
                list.add(load(new ID(namespace, "orange")));
                return list;
            }
        });


        { // Assert Orange


            // Should have inherited from Red


            final ServiceProvider provider = manager.get("dEFAUlT", "orAngE");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("Resource", provider.getService());
            assertEquals("one, two, three", provider.getConstructor());
            assertEquals("the description", provider.getDescription());
            assertEquals("the display name", provider.getDisplayName());
            assertEquals("fooFactory", provider.getFactoryName());
            assertEquals("255", provider.getProperties().getProperty("reD"));
            assertEquals("200", provider.getProperties().get("grEeN"));
            assertEquals("0", provider.getProperties().get("bLue"));
            assertEquals(1, provider.getTypes().size());
        }


        { // Assert Red


            // Should have inherited green and blue values from Color


            final ServiceProvider provider = manager.get("dEFaulT", "REd");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("Resource", provider.getService());
            assertEquals("one, two, three", provider.getConstructor());
            assertEquals("the description", provider.getDescription());
            assertEquals("the display name", provider.getDisplayName());
            assertEquals("fooFactory", provider.getFactoryName());
            assertEquals("255", provider.getProperties().getProperty("rED"));
            assertEquals("0", provider.getProperties().get("grEEN"));
            assertEquals("0", provider.getProperties().get("bLUe"));
        }


        { // Assert Color
            // Must be able to retrieve provider and properties in a case-insensitive manner


            final ServiceProvider provider = manager.get("DeFaulT", "CoLoR");
            assertNotNull(provider);
            assertEquals(Color.class.getName(), provider.getClassName());
            assertEquals("Resource", provider.getService());
            assertEquals("one, two, three", provider.getConstructor());
            assertEquals("the description", provider.getDescription());
            assertEquals("the display name", provider.getDisplayName());
            assertEquals("fooFactory", provider.getFactoryName());
            assertEquals("0", provider.getProperties().getProperty("rEd"));
            assertEquals("0", provider.getProperties().get("grEEn"));
            assertEquals("0", provider.getProperties().get("blUE"));
        }


        assertEquals(3, manager.getAll().size());
    }

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        OpenEJB.destroy();
    }


    public void test() throws Exception {


        SystemInstance.get().setComponent(ProviderManager.class, new ProviderManager(new ProviderLoader() {
            final ProviderLoader loader = new ServiceJarXmlLoader();


            @Override
            public ServiceProvider load(final ID id) {

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    public static Messages messages = new Messages("org.apache.openejb.util.resources");
    public static Logger logger = Logger.getInstance(LogCategory.OPENEJB, "org.apache.openejb.util.resources");


    public static ProviderManager getManager() {
        final ProviderManager manager = SystemInstance.get().getComponent(ProviderManager.class);
        if (manager!= null) return manager;


        SystemInstance.get().setComponent(ProviderManager.class, new ProviderManager(new ServiceJarXmlLoader()));
        return getManager();
    }

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 * @version $Rev$ $Date$
 */
public class ProviderGenerator extends Resource {


    public static void main(String[] args) throws Exception {
        final ProviderManager manager = new ProviderManager(new ServiceJarXmlLoader());


        final Set<String> seen = new HashSet<String>();


        final List<ServiceProvider> providers = manager.load("org.apache.openejb");
        for (ServiceProvider provider : providers) {
            final List<String> types = provider.getTypes();
            final String name = guessBuilder(types);
            final String builder = name + "Builder";

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org.apache.openejb.config.ProviderManagerTest

org.apache.openejb.config.ServiceUtils

org.apache.openejb.config.sys.ServiceProvider

org.apache.openejb.config.sys.ServiceProviderInheritanceTest

org.apache.openejb.config.typed.util.ProviderGenerator

org.apache.openejb.util.SuperProperties

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