Example usage for java.lang.reflect Field getType

Introduction

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

Prototype

public Class<?> getType() 

Source Link

Document

Returns a Class object that identifies the declared type for the field represented by this Field object.

Usage

From source file:com.github.jiahut.demo.utils.LoggerPostProcessor.java

@Override
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {

    List<Field> fields = Arrays.asList(bean.getClass().getDeclaredFields());

    for (Field field : fields) {
        if (Logger.class.isAssignableFrom(field.getType()) && field.getAnnotation(InjectLogger.class) != null) {

            logger.debug("Attempting to inject a SLF4J logger on bean: " + bean.getClass());

            if (field != null && (field.getModifiers() & Modifier.STATIC) == 0) {
                field.setAccessible(true);
                try {
                    field.set(bean, LoggerFactory.getLogger(bean.getClass()));
                    logger.debug("Successfully injected a SLF4J logger on bean: " + bean.getClass());
                } catch (IllegalArgumentException e) {
                    logger.warn("Could not inject logger for class: " + bean.getClass(), e);
                } catch (IllegalAccessException e) {
                    logger.warn("Could not inject logger for class: " + bean.getClass(), e);
                }/*from  w ww  . j ava2 s .  c  om*/
            }
        }
    }

    return bean;
}

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From source file:mil.army.usace.data.dataquery.utility.DefaultConverter.java

@Override
public Object convertType(Object obj, Field field) throws ClassNotFoundException, ConversionException {
    Class fieldParam = field.getType();
    if (obj == null)
        return null;
    else {/*from www. j  av a  2  s  . c  om*/
        if (fieldParam.isPrimitive()) {
            return obj;
        } else {
            return convertType(obj, fieldParam);
        }
    }
}

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From source file:com.gemstone.gemfire.test.junit.rules.serializable.SerializableTestNameTest.java

@Test
public void fieldNameShouldExist() throws Exception {
    Field field = TestName.class.getDeclaredField(FIELD_NAME);
    assertThat(field.getType()).isEqualTo(String.class);
}

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From source file:com.nonninz.robomodel.RoboModelCollection.java

public void save() {
    Field[] fields = getClass().getFields();
    for (Field f : fields) {
        try {//ww  w.j a  v a  2s.co m
            if (f.getType().isAssignableFrom(Collection.class)) {
                @SuppressWarnings("unchecked")
                Collection<? extends RoboModel> list = (Collection<? extends RoboModel>) f.get(this);
                if (list != null) {
                    for (RoboModel model : list) {
                        model.save();
                    }
                }
            }
            if (f.getType().isArray()) {
                RoboModel[] list = (RoboModel[]) f.get(this);
                if (list != null) {
                    for (RoboModel model : list) {
                        model.save();
                    }
                }
            }
        } catch (IllegalAccessException e) {
            Ln.d(e, "Error while accessing field %s", f.getName());
        }
    }
}

---

From source file:com.nonninz.robomodel.RoboModelCollection.java

void setContext(Context context) {
    Field[] fields = getClass().getFields();
    for (Field f : fields) {
        try {//from  ww  w.ja v a  2s .  c  om
            if (f.getType().isAssignableFrom(Collection.class)) {
                @SuppressWarnings("unchecked")
                Collection<? extends RoboModel> list = (Collection<? extends RoboModel>) f.get(this);
                if (list != null) {
                    for (RoboModel model : list) {
                        model.setContext(context);
                    }
                }
            }
            if (f.getType().isArray()) {
                RoboModel[] list = (RoboModel[]) f.get(this);
                if (list != null) {
                    for (RoboModel model : list) {
                        model.setContext(context);
                    }
                }
            }
        } catch (IllegalAccessException e) {
            Ln.d(e, "Error while accessing field %s", f.getName());
        }
    }
}

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From source file:com.google.code.siren4j.util.ReflectionUtils.java

/**
 * Replaces field tokens with the actual value in the fields. The field types must be simple property types
 *
 * @param str/*from   ww w.j  av  a2s .c  o  m*/
 * @param fields info
 * @param parentMode
 * @param obj
 * @return
 * @throws Siren4JException
 */
public static String replaceFieldTokens(Object obj, String str, List<ReflectedInfo> fields, boolean parentMode)
        throws Siren4JException {
    Map<String, Field> index = new HashMap<String, Field>();
    if (StringUtils.isBlank(str)) {
        return str;
    }
    if (fields != null) {
        for (ReflectedInfo info : fields) {
            Field f = info.getField();
            if (f != null) {
                index.put(f.getName(), f);
            }
        }
    }
    try {
        for (String key : ReflectionUtils.getTokenKeys(str)) {
            if ((!parentMode && !key.startsWith("parent.")) || (parentMode && key.startsWith("parent."))) {
                String fieldname = key.startsWith("parent.") ? key.substring(7) : key;
                if (index.containsKey(fieldname)) {
                    Field f = index.get(fieldname);
                    if (f.getType().isEnum() || ArrayUtils.contains(propertyTypes, f.getType())) {
                        String replacement = "";
                        Object theObject = f.get(obj);
                        if (f.getType().isEnum()) {
                            replacement = theObject == null ? "" : ((Enum) theObject).name();
                        } else {
                            replacement = theObject == null ? "" : theObject.toString();
                        }
                        str = str.replaceAll("\\{" + key + "\\}", Matcher.quoteReplacement("" + replacement));
                    }
                }
            }
        }
    } catch (Exception e) {
        throw new Siren4JException(e);
    }
    return str;

}

---

From source file:no.digipost.api.xml.SchemasTest.java

@Test
public void allSchemasExist() throws Exception {
    for (Field field : Schemas.class.getFields()) {
        if (isStatic(field.getModifiers()) && Resource.class.isAssignableFrom(field.getType())) {
            Resource resource = (Resource) field.get(Schemas.class);
            assertTrue(resource + " must exist! (declared in " + Schemas.class.getName() + "." + field.getName()
                    + ")", resource.exists());
        }//w  w  w  .  j  av a 2s  .  c o m
    }
}

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From source file:com.thoughtworks.xstream.benchmark.reflection.targets.AbstractReflectionTarget.java

protected void fill(final Object o) {
    final char[] zero = new char[8];
    Arrays.fill(zero, '0');
    for (Class cls = o.getClass(); cls != Object.class; cls = cls.getSuperclass()) {
        final Field[] fields = cls.getDeclaredFields();
        for (int i = 0; i < fields.length; i++) {
            final Field field = fields[i];
            field.setAccessible(true);//  www  . j a va2  s .  c  o  m
            if (field.getType() == String.class) {
                final String hex = Integer.toHexString(i);
                try {
                    field.set(o, new String(zero, 0, zero.length - hex.length()) + hex);
                } catch (final IllegalAccessException e) {
                    throw new RuntimeException(e);
                }
            }
        }
    }
}

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From source file:com.holonplatform.core.internal.beans.DefaultBeanPropertySet.java

/**
 * Write the <code>property</code> value into given instance using given value, using BeanProperty configuration
 * write method or field, if available.//from  w w  w .  jav a 2  s. c  o m
 * @param property Property to write
 * @param value Value to write
 * @param instance Instance to write
 * @return Written value
 */
private static Object writeValue(BeanProperty<?> property, Object value, Object instance) {
    ObjectUtils.argumentNotNull(property, "Property must be not null");

    if (property.getWriteMethod().isPresent()) {
        try {
            property.getWriteMethod().get().invoke(instance, new Object[] {
                    getValueToWrite(property.getWriteMethod().get().getParameters()[0].getType(), value) });

            LOGGER.debug(() -> "BeanPropertySet: written property [" + property + "] value [" + value
                    + "] from instance [" + instance + "] using method [" + property.getWriteMethod() + "]");

        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
            throw new PropertyWriteException(property,
                    "Cannot write property [" + property + "] value of type ["
                            + ((value != null) ? value.getClass().getName() : "null") + "] on bean instance ["
                            + instance + "]",
                    e);
        }
    } else {
        Field field = property.getField()
                .orElseThrow(() -> new PropertyReadException(property,
                        "No write method and no accessible field available to write property [" + property
                                + "] on bean class [" + instance.getClass().getName() + "]"));
        try {
            FieldUtils.writeField(field, instance, getValueToWrite(field.getType(), value), true);

            LOGGER.debug(() -> "BeanPropertySet: read property [" + property + "] value [" + value
                    + "] from instance [" + instance + "] using field [" + field + "]");

        } catch (IllegalAccessException e) {
            throw new PropertyWriteException(property, e);
        }
    }

    return value;
}

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From source file:com.nabla.wapp.server.auth.AuthDatabase.java

public AuthDatabase(final String dbName, final ServletContext serverContext, final Class<?> roles,
        final String rootPassword) throws SQLException {
    super(dbName, serverContext);
    final Connection conn = this.getConnection();
    try {//from   ww w. j  a v  a 2  s .c o  m
        new UserManager(conn).initializeDatabase(new UserManager.IRoleListProvider() {
            @Override
            public Map<String, String[]> get() {
                final Map<String, String[]> rslt = new HashMap<String, String[]>();
                for (final Field field : roles.getFields()) {
                    if (!field.getType().getCanonicalName().equals(String.class.getName()))
                        continue;
                    try {
                        final String roleName = (String) field.get(null); // assume static
                        final IRole definition = field.getAnnotation(IRole.class);
                        if (definition == null) {
                            // privilege
                            rslt.put(roleName, null);
                        } else {
                            // role
                            rslt.put(roleName, definition.value());
                        }
                    } catch (final IllegalArgumentException e) {
                        if (log.isDebugEnabled())
                            log.debug("invalid field '" + field.getName() + "' as a role", e);
                    } catch (final IllegalAccessException e) {
                        if (log.isDebugEnabled())
                            log.debug("invalid field '" + field.getName() + "' as a role", e);
                    }
                }
                return rslt;
            }
        }, rootPassword);
    } finally {
        close(conn);
    }
}

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