Example usage for java.lang.reflect Field setAccessible

Introduction

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

Prototype

@Override
@CallerSensitive
public void setAccessible(boolean flag)

Source Link

Usage

From source file:Main.java

/**
 * Helper to get the Activity result Intent.  This must only be called on the main thread.
 *
 * @param activity Activity whose result Intent is to be obtained.
 * @return Result Intent of the Activity.
 *///from  w  w  w .j a  v a 2s  . c  om
@Nullable
public static Intent getActivityResultData(@NonNull final Activity activity) {
    if (activity == null) {
        throw new IllegalArgumentException("activity cannot be null"); //$NON-NLS-1$
    }

    if (Looper.getMainLooper() != Looper.myLooper()) {
        throw new AssertionError("Must only be called on the main thread");
    }

    /*
     * This is a hack to obtain the Activity result data. There is no official way to check this using the Android
     * testing frameworks, so accessing the internals of the Activity object is the only way. This could
     * break on newer versions of Android.
     */

    try {
        final Field resultIntentField = Activity.class.getDeclaredField("mResultData"); //$NON-NLS-1$
        resultIntentField.setAccessible(true);
        return ((Intent) resultIntentField.get(activity));
    } catch (final Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

public static Field findFieldByClassAndTypeAndName(Class<?> targetObject, Class<?> fieldType,
        String fieldName) {//from w w  w . jav  a2 s .  c  o m
    Class clazz = targetObject;
    do {
        for (Field field : clazz.getDeclaredFields()) {
            if (field.getType() == fieldType && field.getName().equals(fieldName)) {
                field.setAccessible(true);
                return field;
            }
        }
        clazz = clazz.getSuperclass();
    } while (clazz != null);
    throw new NoSuchFieldError("Field of type " + fieldType.getName() + " in class " + targetObject.getName());
}

From source file:Main.java

public static String[][] returnTable(Collection E) {
    if ((E == null) || E.isEmpty()) {
        System.out.println("The collection is empty!");
    }/*  w w w  . j a v a2 s .c  o  m*/

    Set<Field> collectionFields = new TreeSet<>(new Comparator<Field>() {
        @Override
        public int compare(Field o1, Field o2) {
            return o1.getName().compareTo(o2.getName());
        }
    });
    for (Object o : E) {
        Class c = o.getClass();
        createSetOfFields(collectionFields, c);
        while (c.getSuperclass() != null) {
            c = c.getSuperclass();
            createSetOfFields(collectionFields, c);
        }
    }
    String[][] exitText = new String[E.size() + 1][collectionFields.size() + 1];
    exitText[0][0] = String.format("%20s", "Class");
    int indexOfColumn = 0;
    for (Field f : collectionFields) {
        exitText[0][indexOfColumn + 1] = String.format("%20s", f.getName());
        indexOfColumn++;

    }
    int indexOfRow = 0;
    for (Object o : E) {
        indexOfColumn = 0;
        exitText[indexOfRow + 1][0] = String.format("%20s", o.getClass().getSimpleName());
        for (Field field : collectionFields) {
            try {
                field.setAccessible(true);
                if (field.get(o) instanceof Date) {
                    exitText[indexOfRow + 1][indexOfColumn + 1] = String.format("%20tD", field.get(o));
                } else {
                    String temp = String.valueOf(field.get(o));
                    exitText[indexOfRow + 1][indexOfColumn + 1] = String.format("%20s", temp);
                }
            } catch (Exception e) {
                exitText[indexOfRow + 1][indexOfColumn + 1] = String.format("%20s", "-");
            }
            indexOfColumn++;
        }
        indexOfRow++;
    }
    return exitText;
}

From source file:Main.java

public static boolean replaceField(String className, String fieldName, Object desObj, Object fieldObj) {
    Field tempField;
    try {// w w w.ja va2s . c  o  m
        tempField = Class.forName(className).getDeclaredField(fieldName);
        tempField.setAccessible(true);
        tempField.set(desObj, fieldObj);
        return true;
    } catch (NoSuchFieldException e) {
        // TODO Auto-generated catch block
        Log.i("DEX", "" + e.getMessage());
        // e.printStackTrace();
    } catch (ClassNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IllegalArgumentException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return false;
}

From source file:Main.java

protected static void makeAccessible(final Field field) {
    if (!Modifier.isPublic(field.getModifiers())
            || !Modifier.isPublic(field.getDeclaringClass().getModifiers())) {
        field.setAccessible(true);
    }/*from   w  w w  .jav a 2 s .com*/
}

From source file:Main.java

/**
 * Force overflow menu in samsung devices
 *
 * @param context The activity context.//from   w ww  . ja v a  2 s. c  om
 */
public static void forceOverFlowMenu(Context context) {
    try {
        ViewConfiguration config = ViewConfiguration.get(context);
        Field menuKeyFields = ViewConfiguration.class.getDeclaredField("sHasPermanentMenuKey");

        if (menuKeyFields != null) {
            menuKeyFields.setAccessible(true);
            menuKeyFields.setBoolean(config, false);
        }

    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:com.netflix.spinnaker.kork.jedis.JedisHealthIndicatorFactory.java

public static HealthIndicator build(Pool<Jedis> jedisPool) {
    try {/*from  w  w  w .ja v a 2s  .c o  m*/
        final Pool<Jedis> src = jedisPool;
        final Field poolAccess = Pool.class.getDeclaredField("internalPool");
        poolAccess.setAccessible(true);
        GenericObjectPool<Jedis> internal = (GenericObjectPool<Jedis>) poolAccess.get(jedisPool);
        return () -> {
            Jedis jedis = null;
            Health.Builder health;
            try {
                jedis = src.getResource();
                if ("PONG".equals(jedis.ping())) {
                    health = Health.up();
                } else {
                    health = Health.down();
                }
            } catch (Exception ex) {
                health = Health.down(ex);
            } finally {
                if (jedis != null)
                    jedis.close();
            }
            health.withDetail("maxIdle", internal.getMaxIdle());
            health.withDetail("minIdle", internal.getMinIdle());
            health.withDetail("numActive", internal.getNumActive());
            health.withDetail("numIdle", internal.getNumIdle());
            health.withDetail("numWaiters", internal.getNumWaiters());

            return health.build();
        };
    } catch (IllegalAccessException | NoSuchFieldException e) {
        throw new BeanCreationException("Error creating Redis health indicator", e);
    }
}

From source file:Main.java

public static void loadContext(android.content.Context context, Field field, Object object)
        throws IllegalAccessException, InvocationTargetException, InstantiationException,
        NoSuchMethodException {//  w w w.ja  va  2 s .com
    field.setAccessible(true);
    Class fType = (Class) field.getGenericType();
    Constructor constructor = fType.getConstructor(android.content.Context.class);
    if (constructor != null) {
        field.set(object, constructor.newInstance(context));
    }
}

From source file:io.apiman.plugins.keycloak_oauth_policy.ClaimLookup.java

private static boolean hasJsonPropertyAnnotation(Field f) {
    for (Field g : f.getType().getDeclaredFields()) {
        g.setAccessible(true);
        if (g.getAnnotation(JsonProperty.class) != null)
            return true;
    }//from  www . j  av  a2  s.  c o  m
    return false;
}

From source file:com.evolveum.midpoint.repo.sql.util.HibernateToSqlTranslator.java

/**
 * Do not use in production code! Only for testing purposes only. Used for example during query engine upgrade.
 * Method provides translation from hibernate {@link Criteria} to plain SQL string query.
 *
 * @param criteria/*from  ww  w. j  a  va2s .  c om*/
 * @return SQL string, null if criteria parameter was null.
 */
public static String toSql(Criteria criteria) {
    if (criteria == null) {
        return null;
    }

    try {
        CriteriaImpl c;
        if (criteria instanceof CriteriaImpl) {
            c = (CriteriaImpl) criteria;
        } else {
            CriteriaImpl.Subcriteria subcriteria = (CriteriaImpl.Subcriteria) criteria;
            c = (CriteriaImpl) subcriteria.getParent();
        }
        SessionImpl s = (SessionImpl) c.getSession();
        SessionFactoryImplementor factory = s.getSessionFactory();
        String[] implementors = factory.getImplementors(c.getEntityOrClassName());
        CriteriaLoader loader = new CriteriaLoader(
                (OuterJoinLoadable) factory.getEntityPersister(implementors[0]), factory, c, implementors[0],
                s.getLoadQueryInfluencers());
        Field f = OuterJoinLoader.class.getDeclaredField("sql");
        f.setAccessible(true);
        return (String) f.get(loader);
    } catch (Exception ex) {
        throw new SystemException(ex.getMessage(), ex);
    }
}