Example usage for java.lang Class isInterface

List of usage examples for java.lang Class isInterface

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Introduction

In this page you can find the example usage for java.lang Class isInterface.

Prototype

@HotSpotIntrinsicCandidate
public native boolean isInterface();

Source Link

Document

Determines if the specified Class object represents an interface type.

Usage

From source file:org.resthub.rpc.AMQPProxyFactory.java

/**
 * Creates a new proxy from the specified interface.
 * @param api the interface/*from w w  w.  jav  a2  s  .  com*/
 * @return the proxy to the object with the specified interface
 */
@SuppressWarnings("unchecked")
public <T> T create(Class<T> api) {
    if (null == api || !api.isInterface()) {
        throw new IllegalArgumentException("Parameter 'api' is required");
    }
    this.serviceInterface = api;
    this.afterPropertiesSet();
    AMQPProxy handler = new AMQPProxy(this);
    return (T) Proxy.newProxyInstance(api.getClassLoader(), new Class[] { api }, handler);
}

From source file:org.web4thejob.orm.MetaReaderServiceImpl.java

@Override
@SuppressWarnings("unchecked")
public <E extends Entity> E newInstance(Class<? extends Entity> entityType) {
    try {/* w  ww  . j av a2s .c  o  m*/
        if (entityType.isInterface()) {
            entityType = getEntityMetadata(entityType).getMappedClass();
        }

        return (E) ReflectHelper.getDefaultConstructor(entityType).newInstance((Object[]) null);
    } catch (final Exception e) {
        e.printStackTrace();
        return null;
    }
}

From source file:com.github.jknack.handlebars.internal.BaseTemplate.java

@Override
public <T, S extends TypeSafeTemplate<T>> S as(final Class<S> rootType) {
    notNull(rootType, "The rootType can't be null.");
    isTrue(rootType.isInterface(), "Not an interface: %s", rootType.getName());
    @SuppressWarnings("unchecked")
    S template = (S) newTypeSafeTemplate(rootType, this);
    return template;
}

From source file:com.netflix.paas.config.base.CglibArchaeusConfigurationFactory.java

@SuppressWarnings({ "unchecked", "static-access" })
public <T> T get(Class<T> configClass, DynamicPropertyFactory propertyFactory,
        AbstractConfiguration configuration) throws Exception {
    final Map<String, Supplier<?>> methods = ConfigurationProxyUtils.getMethodSuppliers(configClass,
            propertyFactory, configuration);

    if (configClass.isInterface()) {
        final Enhancer enhancer = new Enhancer();
        enhancer.setSuperclass(configClass);
        enhancer.setCallback(new InvocationHandler() {
            @Override/*from  w  ww  . ja  va  2s .c o  m*/
            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                Supplier<?> supplier = (Supplier<?>) methods.get(method.getName());
                return supplier.get();
            }
        });
        return (T) enhancer.create();
    } else {
        final Enhancer enhancer = new Enhancer();
        final Object obj = (T) enhancer.create(configClass, new net.sf.cglib.proxy.InvocationHandler() {
            @Override
            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                Supplier<?> supplier = (Supplier<?>) methods.get(method.getName());
                if (supplier == null) {
                    return method.invoke(proxy, args);
                }
                return supplier.get();
            }
        });

        ConfigurationProxyUtils.assignFieldValues(obj, configClass, propertyFactory, configuration);
        return (T) obj;
    }
}

From source file:com.qmetry.qaf.automation.ui.AbstractTestPage.java

@SuppressWarnings("unchecked")
protected void initParent() {
    try {/* www  . j  a v a2  s . c o  m*/
        Class<P> class1 = (Class<P>) ((ParameterizedType) this.getClass().getGenericSuperclass())
                .getActualTypeArguments()[0];
        if (!class1.isInterface()) {
            parent = class1.newInstance();
        }
    } catch (Exception e) {
        logger.warn("Unable to init parent class" + e.getMessage());
    }

}

From source file:com.netflix.paas.config.base.DynamicProxyArchaeusConfigurationFactory.java

@SuppressWarnings({ "unchecked", "static-access" })
public <T> T get(Class<T> configClass, DynamicPropertyFactory propertyFactory,
        AbstractConfiguration configuration) throws Exception {
    final Map<String, Supplier<?>> methods = ConfigurationProxyUtils.getMethodSuppliers(configClass,
            propertyFactory, configuration);

    if (configClass.isInterface()) {
        Class<?> proxyClass = Proxy.getProxyClass(configClass.getClassLoader(), new Class[] { configClass });

        return (T) proxyClass.getConstructor(new Class[] { InvocationHandler.class })
                .newInstance(new Object[] { new InvocationHandler() {
                    @Override/*from w w w  .  j a  va  2 s. c o m*/
                    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                        Supplier<?> supplier = (Supplier<?>) methods.get(method.getName());
                        return supplier.get();
                    }
                } });
    } else {
        final Enhancer enhancer = new Enhancer();
        final Object obj = (T) enhancer.create(configClass, new net.sf.cglib.proxy.InvocationHandler() {
            @Override
            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                Supplier<?> supplier = (Supplier<?>) methods.get(method.getName());
                if (supplier == null) {
                    return method.invoke(proxy, args);
                }
                return supplier.get();
            }
        });

        ConfigurationProxyUtils.assignFieldValues(obj, configClass, propertyFactory, configuration);
        return (T) obj;
    }
}

From source file:net.ymate.platform.commons.util.ClassUtils.java

/**
 * ?.class??'$'??Java"com/ymatesoft/common/A.class"~"com.ymatesoft.common.A"
 * /*w ww.  j  av a2  s .c  o  m*/
 * @param collections
 * @param clazz
 * @param packageName
 * @param packageFile
 * @param callingClass
 */
@SuppressWarnings("unchecked")
protected static <T> void __doFindClassByClazz(Collection<Class<T>> collections, Class<T> clazz,
        String packageName, File packageFile, Class<?> callingClass) {
    if (packageFile.isFile()) {
        try {
            if (packageFile.getName().endsWith(".class") && packageFile.getName().indexOf('$') < 0) {
                Class<?> _class = ResourceUtils.loadClass(
                        packageName + "." + packageFile.getName().replace(".class", ""), callingClass);
                if (_class != null) {
                    if (clazz.isAnnotation()) {
                        if (isAnnotationOf(_class, (Class<Annotation>) clazz)) {
                            collections.add((Class<T>) _class);
                        }
                    } else if (clazz.isInterface()) {
                        if (isInterfaceOf(_class, clazz)) {
                            collections.add((Class<T>) _class);
                        }
                    } else if (isSubclassOf(_class, clazz)) {
                        collections.add((Class<T>) _class);
                    }
                }
            }
        } catch (NoClassDefFoundError e) {
            _LOG.warn("", RuntimeUtils.unwrapThrow(e));
        } catch (ClassNotFoundException e) {
            _LOG.warn("", RuntimeUtils.unwrapThrow(e));
        }
    } else {
        File[] _tmpfiles = packageFile.listFiles();
        for (File _tmpFile : _tmpfiles != null ? _tmpfiles : new File[0]) {
            __doFindClassByClazz(collections, clazz, packageName + "." + packageFile.getName(), _tmpFile,
                    callingClass);
        }
    }
}

From source file:com.jaliansystems.activeMQLite.impl.ObjectRepository.java

/**
 * Invoke a method on a local object.//from w  w w.  j  a  v a2 s. co  m
 * 
 * @param message
 *            the message received.
 * @param client
 *            the repository client.
 * @return the return value from the method invocation.
 * @throws Exception
 *             the exception
 */
public Object invoke(JMSLiteMessage message, RepositoryClient client) throws Exception {
    ObjectHandle handle = (ObjectHandle) message.read();
    String methodName = (String) message.read();
    Object[] args = (Object[]) message.read();

    Object object = getObject(handle);
    if (object == null)
        throw new IllegalArgumentException("Could not find local object: " + handle);
    if (client != null && args != null)
        for (int i = 0; i < args.length; i++) {
            if (args[i] != null && args[i] instanceof ObjectHandle)
                args[i] = lookupHandle((ObjectHandle) args[i], client);
        }
    Method method = findMethod(object, methodName, args);
    if (method == null)
        throw new NoSuchMethodError(
                "Could not find method: " + methodName + " on Object of type " + object.getClass().getName());
    Object rval = method.invoke(object, args);
    Class<?> rtype = method.getReturnType();
    if (rtype.isInterface() && exportedInterfaces.contains(rtype) && rval != null) {
        rval = createHandle(rval, rtype);
    }
    return rval;
}

From source file:name.ikysil.beanpathdsl.codegen.Context.java

private boolean isExcluded(Class<?> clazz) {
    if (clazz.isPrimitive() || clazz.isAnonymousClass() || clazz.isLocalClass() || clazz.isInterface()
            || clazz.isSynthetic() || clazz.isEnum() || !Modifier.isPublic(clazz.getModifiers())
            || (clazz.getPackage() == null)) {
        return true;
    }//from   ww w .  ja v  a2s. c o  m
    IncludedClass includedConfig = includedClasses.get(clazz);
    if (includedConfig != null) {
        return false;
    }
    ExcludedClass excludedConfig = excludedClasses.get(clazz);
    if (excludedConfig != null) {
        return true;
    }
    for (ExcludedPackage excludedPackage : excludedPackages) {
        if (excludedPackage.match(clazz.getPackage())) {
            return true;
        }
    }
    return false;
}

From source file:net.ymate.platform.plugin.impl.DefaultPluginFactory.java

@SuppressWarnings("unchecked")
private List<Class<? extends IBeanHandler>> __doLoadBeanHandles() throws Exception {
    List<Class<? extends IBeanHandler>> _returnValues = new ArrayList<Class<? extends IBeanHandler>>();
    IBeanLoader _loader = new DefaultBeanLoader();
    ////from   ww  w.ja  va2s.c o m
    IBeanFilter _beanFilter = new IBeanFilter() {
        public boolean filter(Class<?> targetClass) {
            return !(targetClass.isInterface() || targetClass.isAnnotation() || targetClass.isEnum())
                    && (targetClass.isAnnotationPresent(Handler.class)
                            && ClassUtils.isInterfaceOf(targetClass, IBeanHandler.class));
        }
    };
    //
    for (String _package : __config.getAutoscanPackages()) {
        for (Class<?> _targetClass : _loader.load(_package, _beanFilter)) {
            _returnValues.add((Class<? extends IBeanHandler>) _targetClass);
        }
    }
    return _returnValues;
}