Example usage for java.util ServiceLoader load

Introduction

In this page you can find the example usage for java.util ServiceLoader load.

Prototype

@CallerSensitive
public static <S> ServiceLoader<S> load(Class<S> service)

Source Link

Document

Creates a new service loader for the given service type, using the current thread's java.lang.Thread#getContextClassLoader context class loader .

Usage

From source file:org.commonjava.maven.cartographer.ftest.AbstractCartographerTCK.java

@Before
public void before() throws Exception {
    final ServiceLoader<CartoTCKDriver> driverLoader = ServiceLoader.load(CartoTCKDriver.class);
    final Iterator<CartoTCKDriver> driverIter = driverLoader.iterator();
    if (!driverIter.hasNext()) {
        throw new IllegalStateException("No TCK driver found!");
    }/*from w  ww  .j  ava 2s. co  m*/

    driver = driverIter.next();

    carto = driver.start(temp);
}

From source file:net.hamnaberg.rest.RESTClient.java

public RESTClient(HTTPCache cache, Option<String> username, Option<String> password) {
    Validate.notNull(cache, "Cache may not be null");
    Validate.notNull(username, "Username option may not be null");
    Validate.notNull(password, "password option may not be null");
    if (username.isSome() && password.isSome()) {
        challenge = new UsernamePasswordChallenge(username.some(), password.some());
    } else {/*from   w ww .  j a  va 2 s  .co  m*/
        challenge = null;
    }
    this.cache = cache;
    ServiceLoader<HandlerSpi> spis = ServiceLoader.load(HandlerSpi.class);
    for (HandlerSpi spi : spis) {
        registerHandler(spi.createHandler());
    }
}

From source file:org.forgerock.openidm.shell.impl.BasicCommandScope.java

/**
 * Produce help text.//from  w w w  . j a  va  2  s.c o  m
 *
 * @param session the command session.
 */
@Descriptor("Displays available commands.")
public void help(CommandSession session) {
    ServiceLoader<CustomCommandScope> ldr = ServiceLoader.load(CustomCommandScope.class);
    PrintStream console = session.getConsole();

    for (CustomCommandScope cmdScope : ldr) {
        String scope = cmdScope.getScope();
        Map<String, String> functionMap = cmdScope.getFunctionMap();

        if (StringUtils.isNotEmpty(scope) && functionMap != null) {
            int maxEntryLen = 0;

            for (Map.Entry<String, String> entry : functionMap.entrySet()) {
                int len = scope.length() + entry.getKey().length() + 4; // 4 for ':' +3 space
                maxEntryLen = len > maxEntryLen ? len : maxEntryLen;
            }

            StringBuilder spaceBuilder = new StringBuilder();

            for (int i = 0; i < maxEntryLen; i++) {
                spaceBuilder.append(' ');
            }

            String spacer = spaceBuilder.toString();

            for (Map.Entry<String, String> entry : functionMap.entrySet()) {
                String name = scope + ":" + entry.getKey();
                String desc = entry.getValue();

                console.append(LEAD_OPTION_SPACE).append(name)
                        .append(spacer.substring(Math.min(name.length(), spacer.length()))).println(desc);
            }
        }
    }
}

From source file:org.ops4j.pax.exam.forked.ForkedFrameworkFactoryTest.java

@Test
public void forkEquinox()
        throws BundleException, IOException, InterruptedException, NotBoundException, URISyntaxException {
    ServiceLoader<FrameworkFactory> loader = ServiceLoader.load(FrameworkFactory.class);
    FrameworkFactory frameworkFactory = loader.iterator().next();

    ForkedFrameworkFactory forkedFactory = new ForkedFrameworkFactory(frameworkFactory);

    Map<String, Object> frameworkProperties = new HashMap<String, Object>();
    frameworkProperties.put(Constants.FRAMEWORK_STORAGE, storage.getAbsolutePath());
    RemoteFramework framework = forkedFactory.fork(Collections.<String>emptyList(),
            Collections.<String, String>emptyMap(), frameworkProperties);
    framework.start();//from w  ww  . ja  v  a  2  s .co m

    long bundleId = framework.installBundle("file:target/bundles/regression-pde-bundle-2.3.0.jar");
    framework.startBundle(bundleId);

    framework.callService("(objectClass=org.ops4j.pax.exam.regression.pde.HelloService)", "getMessage");

    Thread.sleep(3000);
    framework.stop();

    forkedFactory.join();
}

From source file:org.apache.hadoop.gateway.deploy.impl.ShiroDeploymentContributorTest.java

@Test
public void testServiceLoader() throws Exception {
    ServiceLoader loader = ServiceLoader.load(ProviderDeploymentContributor.class);
    Iterator iterator = loader.iterator();
    assertThat("Service iterator empty.", iterator.hasNext());
    while (iterator.hasNext()) {
        Object object = iterator.next();
        if (object instanceof ShiroDeploymentContributor) {
            return;
        }/*from  w w w .j  a v  a  2  s .  c  o m*/
    }
    fail("Failed to find " + ShiroDeploymentContributor.class.getName() + " via service loader.");
}

From source file:org.maodian.flyingcat.xmpp.XmppServer.java

private XmppServer preRun(ApplicationContext beanFactory) {
    GlobalContext ctx = beanFactory.getBean(GlobalContext.class);
    ServiceLoader<Extension> extLoader = ServiceLoader.load(Extension.class);
    for (Extension ext : extLoader) {
        ext.setBeanFactory(beanFactory);
        ext.register(ctx);//from  w  ww  . j ava  2s  . c  o  m
    }
    return this;
}

From source file:eu.itesla_project.commons.tools.Main.java

private static Tool findTool(String commandName) {
    for (Tool tool : ServiceLoader.load(Tool.class)) {
        if (tool.getCommand().getName().equals(commandName)) {
            return tool;
        }//  ww  w .ja  va  2s. c  o  m
    }
    return null;
}

From source file:org.opencms.ui.contextmenu.CmsContextMenuItemProviderGroup.java

/**
 * Creates a new instance.<p>/*  www .j a va2  s.  c o m*/
 */
public CmsContextMenuItemProviderGroup() {
    Iterator<I_CmsContextMenuItemProvider> providersIt = ServiceLoader.load(I_CmsContextMenuItemProvider.class)
            .iterator();
    while (providersIt.hasNext()) {
        try {
            addProvider(providersIt.next());
        } catch (Throwable t) {
            LOG.error("Error loading context menu provider from classpath.", t);
        }
    }
}

From source file:org.apache.phoenix.util.InstanceResolver.java

private synchronized static <T> T resolveSingleton(Class<T> clazz, T defaultInstance) {
    ServiceLoader<T> loader = ServiceLoader.load(clazz);
    // returns the first registered instance found
    for (T singleton : loader) {
        return singleton;
    }// w  w  w.java2 s .c  om
    return defaultInstance;
}

From source file:au.edu.jcu.fascinator.portal.sso.shibboleth.roles.simple.SimpleShibbolethRoleManager.java

public SimpleShibbolethRoleManager() {
    try {/*from  www  . ja v  a2 s.  c o  m*/
        JsonSimpleConfig config = new JsonSimpleConfig();
        cfg = config.getObject(SHIBBOLETH_PLUGIN_ID, SimpleShibbolethRoleManager.class.getSimpleName());
        ServiceLoader<ShibSimpleRoleOperator> providers = ServiceLoader.load(ShibSimpleRoleOperator.class);
        for (ShibSimpleRoleOperator provider : providers) {
            operations.put(provider.getOperator(), provider);
            logger.trace(String.format("Loaded Simple Shibboleth Role Operation: %s as %s",
                    provider.getOperator(), provider.getClass()));
        }
    } catch (IOException e) {
        logger.error(e.getMessage(), e);
    }
}