Example usage for java.lang.reflect Method setAccessible

Introduction

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

Prototype

@Override
@CallerSensitive
public void setAccessible(boolean flag)

Source Link

Usage

From source file:com.alibaba.otter.shared.common.utils.NioUtilsPerformance.java

public static void mappedTest(File source, File target) throws Exception {
    FileInputStream fis = null;//from   ww  w .  ja v a  2  s.c om
    FileOutputStream fos = null;
    MappedByteBuffer mapbuffer = null;

    try {
        long fileSize = source.length();
        final byte[] outputData = new byte[(int) fileSize];
        fis = new FileInputStream(source);
        fos = new FileOutputStream(target);
        FileChannel sChannel = fis.getChannel();

        target.createNewFile();

        mapbuffer = sChannel.map(FileChannel.MapMode.READ_ONLY, 0, fileSize);
        for (int i = 0; i < fileSize; i++) {
            outputData[i] = mapbuffer.get();
        }

        mapbuffer.clear();
        fos.write(outputData);
        fos.flush();
    } finally {
        IOUtils.closeQuietly(fis);
        IOUtils.closeQuietly(fos);

        if (mapbuffer == null) {
            return;
        }

        final Object buffer = mapbuffer;

        AccessController.doPrivileged(new PrivilegedAction() {

            public Object run() {
                try {
                    Method clean = buffer.getClass().getMethod("cleaner", new Class[0]);

                    if (clean == null) {
                        return null;
                    }
                    clean.setAccessible(true);
                    sun.misc.Cleaner cleaner = (sun.misc.Cleaner) clean.invoke(buffer, new Object[0]);
                    cleaner.clean();
                } catch (Throwable ex) {
                }

                return null;
            }
        });
    }
}

From source file:com.atlassian.connector.eclipse.internal.crucible.ui.operations.CrucibleFileInfoCompareEditorInput.java

private static Viewer findContentViewer(Viewer contentViewer, ICompareInput input, Composite parent,
        CrucibleCompareAnnotationModel annotationModel) {

    // FIXME: hack
    if (contentViewer instanceof TextMergeViewer) {
        TextMergeViewer textMergeViewer = (TextMergeViewer) contentViewer;
        try {/*  ww  w.  jav a  2s  .c om*/
            Class<TextMergeViewer> clazz = TextMergeViewer.class;
            Field declaredField = clazz.getDeclaredField("fLeft");
            declaredField.setAccessible(true);
            final MergeSourceViewer fLeft = (MergeSourceViewer) declaredField.get(textMergeViewer);

            declaredField = clazz.getDeclaredField("fRight");
            declaredField.setAccessible(true);
            final MergeSourceViewer fRight = (MergeSourceViewer) declaredField.get(textMergeViewer);

            annotationModel.attachToViewer(textMergeViewer, fLeft, fRight);
            annotationModel.focusOnComment();
            annotationModel.registerContextMenu();

            Method setActiveViewer = clazz.getDeclaredMethod("setActiveViewer", MergeSourceViewer.class,
                    boolean.class);
            setActiveViewer.setAccessible(true);
            setActiveViewer.invoke(textMergeViewer, fRight, true);

            hackGalileo(contentViewer, textMergeViewer, fLeft, fRight);
        } catch (Throwable t) {
            StatusHandler.log(new Status(IStatus.WARNING, AtlassianTeamUiPlugin.PLUGIN_ID,
                    "Could not initialize annotation model for " + input.getName(), t));
        }
    }
    return contentViewer;
}

From source file:com.haulmont.bali.util.ReflectionHelper.java

/**
 * Invokes a method by reflection./*from   w w  w .  j  a v a2  s  .c o  m*/
 * @param obj       object instance
 * @param name      method name
 * @param params    method arguments
 * @return          method result
 * @throws NoSuchMethodException if a suitable method not found
 */
public static <T> T invokeMethod(Object obj, String name, Object... params) throws NoSuchMethodException {
    Class[] paramTypes = getParamTypes(params);

    final Class<?> aClass = obj.getClass();
    Method method;
    try {
        method = aClass.getDeclaredMethod(name, paramTypes);
    } catch (NoSuchMethodException e) {
        method = aClass.getMethod(name, paramTypes);
    }
    method.setAccessible(true);
    try {
        //noinspection unchecked
        return (T) method.invoke(obj, params);
    } catch (IllegalAccessException | InvocationTargetException e) {
        throw new RuntimeException(e);
    }
}

From source file:it.geosolutions.geobatch.action.scripting.ScriptingAction.java

/**
 * /*from   w  w  w.ja  v a 2 s  .c  o m*/
 * @param moduleFile
 * @throws IOException
 */
private static void addFile(File moduleFile) throws IOException {
    URL moduleURL = moduleFile.toURI().toURL();
    final Class[] parameters = new Class[] { URL.class };

    URLClassLoader sysloader = (URLClassLoader) ClassLoader.getSystemClassLoader();
    Class sysclass = URLClassLoader.class;

    try {
        Method method = sysclass.getDeclaredMethod("addURL", parameters);
        method.setAccessible(true);
        method.invoke(sysloader, new Object[] { moduleURL });
    } catch (Throwable t) {
        LOGGER.error("Error, could not add URL to system classloader", t);
        throw new IOException("Error, could not add URL to system classloader");
    }
}

From source file:com.aionemu.gameserver.model.TribeRelationCheck.java

static void setPositionAsSpawned(WorldPosition position) {
    try {/*from   ww  w . j  a  v  a 2s  .c  o m*/
        Method method = WorldPosition.class.getDeclaredMethod("setIsSpawned", new Class<?>[] { boolean.class });
        method.setAccessible(true);
        method.invoke(position, new Object[] { true });
    } catch (Exception e) {
        System.out.println(e);
    }
}

From source file:Main.java

/**
 * Invokes the given method on the EDT./*  w  w w .  j  ava2s . co  m*/
 *
 * @param target     Target object exposing the specified method.
 * @param methodName Method to invoke.
 * @param args       Arguments to pass to the method.
 */
public static void invokeOnEDT(final Object target, final String methodName, final Object... args) {
    final Class[] types = new Class[args.length];
    for (int i = 0; i < types.length; i++)
        types[i] = args[i].getClass();
    final Method m = getMethod(target, methodName, types);
    if (m == null)
        throw new RuntimeException("No such method: " + methodName + '(' + Arrays.toString(types)
                + ") found for target" + "class " + target.getClass().getName());
    if (!m.isAccessible())
        m.setAccessible(true);
    SwingUtilities.invokeLater(new Runnable() {
        public void run() {
            try {
                m.invoke(target, args);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    });
}

From source file:org.shept.util.BeanUtilsExtended.java

/**
 * Merge the property values of the given source bean into the given target bean.
 * <p>Note: Only not-null values are merged into the given target bean.
 * Note: The source and target classes do not have to match or even be derived
 * from each other, as long as the properties match. Any bean properties that the
 * source bean exposes but the target bean does not will silently be ignored.
 * @param source the source bean/*from   www.  ja  va2  s . c om*/
 * @param target the target bean
 * @param editable the class (or interface) to restrict property setting to
 * @param ignoreProperties array of property names to ignore
 * @throws BeansException if the copying failed
 * @see BeanWrapper
 */
private static void mergeProperties(Object source, Object target, Class<?> editable, String[] ignoreProperties)
        throws BeansException {

    Assert.notNull(source, "Source must not be null");
    Assert.notNull(target, "Target must not be null");

    Class<?> actualEditable = target.getClass();
    if (editable != null) {
        if (!editable.isInstance(target)) {
            throw new IllegalArgumentException("Target class [" + target.getClass().getName()
                    + "] not assignable to Editable class [" + editable.getName() + "]");
        }
        actualEditable = editable;
    }
    PropertyDescriptor[] targetPds = getPropertyDescriptors(actualEditable);
    List<String> ignoreList = (ignoreProperties != null) ? Arrays.asList(ignoreProperties) : null;

    for (PropertyDescriptor targetPd : targetPds) {
        if (targetPd.getWriteMethod() != null
                && (ignoreProperties == null || (!ignoreList.contains(targetPd.getName())))) {
            PropertyDescriptor sourcePd = getPropertyDescriptor(source.getClass(), targetPd.getName());
            if (sourcePd != null && sourcePd.getReadMethod() != null) {
                try {
                    Method readMethod = sourcePd.getReadMethod();
                    if (!Modifier.isPublic(readMethod.getDeclaringClass().getModifiers())) {
                        readMethod.setAccessible(true);
                    }
                    Object value = readMethod.invoke(source);
                    if (value != null) {
                        Method writeMethod = targetPd.getWriteMethod();
                        if (!Modifier.isPublic(writeMethod.getDeclaringClass().getModifiers())) {
                            writeMethod.setAccessible(true);
                        }
                        writeMethod.invoke(target, value);
                    }
                } catch (Throwable ex) {
                    throw new FatalBeanException("Could not copy properties from source to target", ex);
                }
            }
        }
    }
}

From source file:com.mawujun.utils.bean.BeanUtils.java

/**
 * ????//from  w w  w  .  jav  a 2  s . co m
 * null
 * @param source
 * @param target
 * @throws BeansException
 * @throws IntrospectionException
 */
public static void copyExcludeNull(Object source, Object target) throws IntrospectionException {

    Assert.notNull(source, "Source must not be null");
    Assert.notNull(target, "Target must not be null");

    Class<?> actualEditable = target.getClass();

    PropertyDescriptor[] targetPds = getPropertyDescriptors(actualEditable);

    for (PropertyDescriptor targetPd : targetPds) {
        if (targetPd.getWriteMethod() != null) {
            PropertyDescriptor sourcePd = getPropertyDescriptor(source.getClass(), targetPd.getName());
            if (sourcePd != null && sourcePd.getReadMethod() != null) {
                try {
                    Method readMethod = sourcePd.getReadMethod();
                    if (!Modifier.isPublic(readMethod.getDeclaringClass().getModifiers())) {
                        readMethod.setAccessible(true);
                    }
                    Object value = readMethod.invoke(source);
                    if (value == null) {//??
                        continue;
                    }
                    Method writeMethod = targetPd.getWriteMethod();
                    if (!Modifier.isPublic(writeMethod.getDeclaringClass().getModifiers())) {
                        writeMethod.setAccessible(true);
                    }
                    writeMethod.invoke(target, value);
                } catch (Throwable ex) {
                    throw new RuntimeException("Could not copy properties from source to target", ex);
                }
            }
        }
    }
}

From source file:com.palantir.ptoss.util.Reflections.java

/**
 * Looks up an {@link Enum} value by its {@link String} name.
 * @param enumType {@link Enum} class to query.
 * @param value {@link String} name for the {@link Enum} value.
 * @return the actual {@link Enum} value specified by the passed name.
 * @see Enum#valueOf(Class, String)/*from  w  w w .  j  a  va  2s  .  com*/
 */
public static Object evalEnum(Class<?> enumType, String value) {
    try {
        Method method = enumType.getMethod("valueOf", String.class);
        method.setAccessible(true);
        return method.invoke(null, value);
    } catch (Exception ew) {
        throw new IllegalArgumentException("could not find enum value: " + value);
    }
}

From source file:com.aw.support.reflection.MethodInvoker.java

public static Object invoke(Object target, String methodName, Object[] parameters) throws Throwable {
    Object result = null;//from   w ww  . java  2  s.  c  o  m
    try {
        Class cls = target.getClass();
        Class[] paramTypes = new Class[parameters.length];
        for (int i = 0; i < paramTypes.length; i++) {
            paramTypes[i] = parameters[i].getClass();
        }
        Method method = cls.getMethod(methodName, paramTypes);
        method.setAccessible(true);
        result = method.invoke(target, parameters);
    } catch (Throwable e) {
        if (e.getCause() instanceof AWException) {
            throw ((AWException) e.getCause());
        }
        e.printStackTrace();
        throw e;
    }
    return result;
}