Example usage for java.lang.reflect Field getAnnotation

Introduction

In this page you can find the example usage for java.lang.reflect Field getAnnotation.

Prototype

public <T extends Annotation> T getAnnotation(Class<T> annotationClass)

Source Link

Usage

From source file:nl.surfnet.coin.teams.control.AbstractControllerTest.java

private void doAutoWireRemainingResources(Object target, Field[] fields) throws IllegalAccessException {
    for (Field field : fields) {
        ReflectionUtils.makeAccessible(field);
        if (field.getAnnotation(Autowired.class) != null && field.get(target) == null) {
            field.set(target, mock(field.getType(), new DoesNothing()));
        }/*w  w  w.  java  2s  . c  o m*/
    }
}

From source file:de.tarent.maven.plugins.pkg.Utils.java

/**
 * Sets all unset properties, either to the values of the parent or to a
 * (hard-coded) default value if the property is not set in the parent.
 * // w  ww.  ja v a  2  s  . com
 * <p>
 * Using this method the packaging plugin can generate a merge of the
 * default and a distro-specific configuration.
 * </p>
 * 
 * @param child
 * @param parent
 * @return
 * @throws MojoExecutionException
 */
public static TargetConfiguration mergeConfigurations(TargetConfiguration child, TargetConfiguration parent)
        throws MojoExecutionException {

    if (child.isReady()) {
        throw new MojoExecutionException(
                String.format("target configuration '%s' is already merged.", child.getTarget()));
    }

    Field[] allFields = TargetConfiguration.class.getDeclaredFields();
    for (Field field : allFields) {
        field.setAccessible(true);
        if (field.getAnnotation(MergeMe.class) != null) {
            try {
                Object defaultValue = new Object();
                IMerge merger;

                if (field.getAnnotation(MergeMe.class).defaultValueIsNull()) {
                    defaultValue = null;
                }

                if (field.getType() == Properties.class) {
                    if (defaultValue != null) {
                        defaultValue = new Properties();
                    }
                    merger = new PropertiesMerger();

                } else if (field.getType() == List.class) {
                    if (defaultValue != null) {
                        defaultValue = new ArrayList<Object>();
                    }
                    merger = new CollectionMerger();

                } else if (field.getType() == Set.class) {
                    if (defaultValue != null) {
                        defaultValue = new HashSet<Object>();
                    }
                    merger = new CollectionMerger();

                } else if (field.getType() == String.class) {
                    if (defaultValue != null) {
                        defaultValue = field.getAnnotation(MergeMe.class).defaultString();
                    }
                    merger = new ObjectMerger();

                } else if (field.getType() == Boolean.class) {
                    defaultValue = field.getAnnotation(MergeMe.class).defaultBoolean();
                    merger = new ObjectMerger();

                } else {
                    merger = new ObjectMerger();
                }
                Object childValue = field.get(child);
                Object parentValue = field.get(parent);
                try {
                    field.set(child, merger.merge(childValue, parentValue, defaultValue));
                } catch (InstantiationException e) {
                    throw new MojoExecutionException("Error merging configurations", e);
                }

            } catch (SecurityException e) {
                throw new MojoExecutionException(e.getMessage(), e);
            } catch (IllegalArgumentException e) {
                throw new MojoExecutionException(e.getMessage(), e);
            } catch (IllegalAccessException e) {
                throw new MojoExecutionException(e.getMessage(), e);
            }

        }
    }
    child.setReady(true);
    return child;
}

From source file:jofc2.OFC.java

/**
 * ??/*from w ww  .  j a v a 2s  .c o m*/
 * @param c
 */
private void doAlias(Class<?> c) {
    /**
     * 
     */
    if (c.isAnnotationPresent(Alias.class)) {
        converter.alias(c.getAnnotation(Alias.class).value(), c);
    }

    /**
     * ??
     */
    for (Field f : c.getDeclaredFields()) {
        if (f.isAnnotationPresent(Alias.class)) {
            if (f.getAnnotation(Alias.class).value().equals("")) {
                System.out.println(f.getName());
            }
            converter.aliasField(f.getAnnotation(Alias.class).value(), c, f.getName());
        }
    }
}

From source file:com.github.rvesse.airline.Accessor.java

public <T extends Annotation> T getAnnotation(Class<T> annotationCls) {
    Field lastField = path.get(path.size() - 1);
    return lastField.getAnnotation(annotationCls);
}

From source file:be.fedict.trust.service.snmp.SNMPInterceptor.java

private void updateSnmpFields(Object target) {

    for (Field field : target.getClass().getDeclaredFields()) {
        SNMP fieldSnmp = field.getAnnotation(SNMP.class);
        /*//from   ww  w . j  a v  a 2  s.  c o m
         * Derived SNMP fields are updated on SNMPCounter method invocations
         */
        if (null == fieldSnmp || fieldSnmp.derived()) {
            continue;
        }

        // retrieve the possibly changed field value
        field.setAccessible(true);
        Long value;
        try {
            value = (Long) field.get(target);
        } catch (Exception e) {
            LOG.error("Failed to get field=" + field.getName() + " value", e);
            return;
        }

        // increment the SNMP counter's value with the delta of the current
        // field value and the initial value
        Long increment = value - this.values.get(field.getName());
        if (increment != 0L)
            increment(fieldSnmp.oid(), fieldSnmp.service(), value - this.values.get(field.getName()));
    }
}

From source file:com.khubla.cbean.CBeanType.java

/**
 * find id field/*  w w w . jav a2 s  .  c o  m*/
 */
private Id findId() {
    final Field[] fields = clazz.getDeclaredFields();
    if (null != fields) {
        for (int i = 0; i < fields.length; i++) {
            final Field field = fields[i];
            final Id id = field.getAnnotation(Id.class);
            if (null != id) {
                return id;
            }
        }
    }
    return null;
}

From source file:com.khubla.cbean.CBeanType.java

/**
 * get the name of the Id field//from   w  w  w .ja va2s .c  om
 */
private Field findIdField() {
    final Field[] fields = clazz.getDeclaredFields();
    if (null != fields) {
        for (int i = 0; i < fields.length; i++) {
            final Field field = fields[i];
            final Id id = field.getAnnotation(Id.class);
            if (null != id) {
                return field;
            }
        }
    }
    return null;
}

From source file:es.logongas.ix3.dao.impl.ExceptionTranslator.java

private ClassAndLabel getFieldLabel(Class clazz, String fieldName) {
    Field field = ReflectionUtils.findField(clazz, fieldName);
    if (field == null) {
        return null;
    }/*ww w .  j  a  va  2s.c  o  m*/

    Label label = field.getAnnotation(Label.class);
    if (label != null) {
        return new ClassAndLabel(field.getType(), label.value());
    } else {
        return new ClassAndLabel(field.getType(), null);
    }

}

From source file:com.flowpowered.cerealization.config.annotated.AnnotatedObjectConfiguration.java

private void save(ConfigurationNodeSource source, Object object, String[] path, Set<Member> members)
        throws ConfigurationException {
    final Set<Method> methods = new HashSet<Method>();
    for (Member member : members) {
        if (member instanceof Method) {
            final Method method = (Method) member;
            if (method.isAnnotationPresent(Save.class)) {
                methods.add(method);/* w w  w  .  j  ava  2s. com*/
            }
            continue;
        }
        final Field field = (Field) member;
        field.setAccessible(true);
        String[] fieldPath = field.getAnnotation(Setting.class).value();
        if (fieldPath.length == 0) {
            fieldPath = new String[] { field.getName() };
        }
        final ConfigurationNode fieldNode = source.getNode(ArrayUtils.addAll(path, fieldPath));
        try {
            fieldNode.setValue(field.getGenericType(), field.get(object));
        } catch (IllegalAccessException ex) {
            throw new ConfigurationException(ex);
        }
    }
    invokeMethods(methods, object, source.getNode(path));
}

From source file:info.archinnov.achilles.internal.metadata.parsing.EmbeddedIdParser.java

private Integer extractReversedClusteredKey(Class<?> embeddedIdClass) {
    log.debug("Extract reversed clustering component from embedded id class {} ",
            embeddedIdClass.getCanonicalName());

    @SuppressWarnings("unchecked")
    Set<Field> candidateFields = getFields(embeddedIdClass, ReflectionUtils.<Field>withAnnotation(Order.class));
    List<Integer> reversedFields = new LinkedList<Integer>();
    for (Field candidateField : candidateFields) {
        Order orderAnnotation = candidateField.getAnnotation(Order.class);
        if (orderAnnotation.reversed()) {
            reversedFields.add(orderAnnotation.value());
        }/*from   w  w  w.j a v a2s.  co  m*/
    }
    Validator.validateBeanMappingTrue(reversedFields.size() <= 1,
            "There should be at most 1 field annotated with @Order(reversed=true) for the @EmbeddedId class '%s'",
            embeddedIdClass.getCanonicalName());
    return reversedFields.size() > 0 ? reversedFields.get(0) : null;

}