Example usage for java.lang Class isAnnotation

Introduction

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

Prototype

public boolean isAnnotation()

Source Link

Document

Returns true if this Class object represents an annotation type.

Usage

From source file:org.seedstack.seed.core.utils.BaseClassSpecifications.java

/**
 * Checks if the class is an annotation//  ww w.  java2s . co m
 *
 * @return the specification
 */
public static Specification<Class<?>> classIsAnnotation() {
    return new AbstractSpecification<Class<?>>() {
        @Override
        public boolean isSatisfiedBy(Class<?> candidate) {

            return candidate != null && candidate.isAnnotation();
        }
    };
}

From source file:org.unitils.mock.core.proxy.CloneUtil.java

/**
 * @param instanceToClone The instance, not null
 * @return True if the instance is immutable, e.g. a primitive
 *//*from w ww .ja v a  2 s .co  m*/
protected static boolean isImmutable(Object instanceToClone) {
    Class<?> clazz = instanceToClone.getClass();

    if (clazz.isPrimitive() || clazz.isEnum() || clazz.isAnnotation()) {
        return true;
    }
    if (instanceToClone instanceof Number || instanceToClone instanceof String
            || instanceToClone instanceof Character || instanceToClone instanceof Boolean) {
        return true;
    }
    if (clazz.getName().startsWith("com.google.common.collect") && clazz.getName().contains("Immutable")) {
        return true;
    }

    return false;
}

From source file:org.wso2.carbon.tomcat.internal.SCIRegistrarContextConfig.java

@Override
protected void processServletContainerInitializers(ServletContext servletContext) {
    //Scan JARs for ServletContainerInitializer implementations.
    // Code below is from {@link org.apache.catalina.startup.ContextConfig}
    List<ServletContainerInitializer> detectedScis;
    try {/*  w  ww  .ja  v a2  s .  c om*/
        WebappServiceLoader<ServletContainerInitializer> loader = new WebappServiceLoader<ServletContainerInitializer>(
                servletContext, context.getContainerSciFilter());
        detectedScis = loader.load(ServletContainerInitializer.class);
    } catch (IOException e) {
        log.error(sm.getString("contextConfig.servletContainerInitializerFail", context.getName()), e);//prints the full stack trace
        ok = false;
        return;
    }

    //code belongs to org.wso2.carbon.tomcat.internal.SCIRegistrarContextConfig
    List<ServletContainerInitializer> mutableDetectedScis = getCustomSciList(detectedScis);

    // Code below is from {@link org.apache.catalina.startup.ContextConfig}
    //made changes in logging.
    for (ServletContainerInitializer sci : mutableDetectedScis) {
        initializerClassMap.put(sci, new HashSet<Class<?>>());
        HandlesTypes ht;
        try {
            ht = sci.getClass().getAnnotation(HandlesTypes.class);
        } catch (Exception e) {//class defined in the @HandlesTypes annotation can be missing.Can throw
            // NullPointerException.
            if (log.isDebugEnabled()) {
                log.debug(sm.getString("contextConfig.sci.debug", sci.getClass().getName()), e);//changed log.info to log.debug.The debug level prints the full stack trace.
            } else {
                log.info(sm.getString("contextConfig.sci.info", sci.getClass().getName()));
            }
            continue;
        }
        if (ht == null) {
            continue;
        }
        Class<?>[] types = ht.value();
        if (types == null) {
            continue;
        }
        for (Class<?> type : types) {
            if (type.isAnnotation()) {
                handlesTypesAnnotations = true;
            } else {
                handlesTypesNonAnnotations = true;
            }
            Set<ServletContainerInitializer> scis = typeInitializerMap.get(type);
            if (scis == null) {
                scis = new HashSet<ServletContainerInitializer>();
                typeInitializerMap.put(type, scis);
            }
            scis.add(sci);
        }
    }
}