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

public static Dialog waitForCurrentDialogShowing(final Activity activity, final long timeout)
        throws InterruptedException {
    long start = System.currentTimeMillis();
    try {// ww  w .  ja  v a 2s  .  co  m
        Field currentDialogField = activity.getClass().getDeclaredField("currentDialog");
        currentDialogField.setAccessible(true);
        Dialog dialog = null;
        while (dialog == null || !dialog.isShowing()) {
            dialog = (Dialog) currentDialogField.get(activity);
            Thread.sleep(50);
            long now = System.currentTimeMillis();
            if (now - start > timeout) {
                throw new InterruptedException(
                        String.format("Timeout exceeded while waiting for dialog showing"));
            }
        }
        return dialog;
    } catch (Exception e) {
        throw new InterruptedException(String.format("Exception while waiting for dialog showing"));
    }
}

From source file:Main.java

/**
 * Locates a given field anywhere in the class inheritance hierarchy.
 *
 * @param instance an object to search the field into.
 * @param name field name//from  w  w w .jav a2 s .c om
 * @return a field object
 * @throws NoSuchFieldException if the field cannot be located
 */
static Field findField(Object instance, String name) throws NoSuchFieldException {
    for (Class<?> clazz = instance.getClass(); clazz != null; clazz = clazz.getSuperclass()) {
        try {
            Field field = clazz.getDeclaredField(name);

            if (!field.isAccessible()) {
                field.setAccessible(true);
            }

            return field;
        } catch (NoSuchFieldException e) {
            // ignore and search next
        }
    }

    throw new NoSuchFieldException("Field " + name + " not found in " + instance.getClass());
}

From source file:cn.edu.zjnu.acm.judge.SystemOutCharset.java

private static Object get(Field field, Object o) throws Exception {
    if (!field.isAccessible()) {
        field.setAccessible(true);
    }/*from   w w w .ja v  a 2 s .  c  o m*/
    return field.get(o);
}

From source file:Main.java

/**
 * Enable/Disable mobile data.//from ww  w.j a va2s  . co  m
 * @param context
 * @param enabled
 */
public static void setMobileDataEnabled(Context context, boolean enabled) {
    try {
        final ConnectivityManager conman = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        final Class conmanClass = Class.forName(conman.getClass().getName());
        final Field connectivityManagerField = conmanClass.getDeclaredField("mService");
        connectivityManagerField.setAccessible(true);
        final Object connectivityManager = connectivityManagerField.get(conman);
        final Class connectivityManagerClass = Class.forName(connectivityManager.getClass().getName());
        final Method setMobileDataEnabledMethod = connectivityManagerClass
                .getDeclaredMethod("setMobileDataEnabled", Boolean.TYPE);
        setMobileDataEnabledMethod.setAccessible(true);
        // Method call for enabling mobile data..
        setMobileDataEnabledMethod.invoke(connectivityManager, enabled);
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    } catch (NoSuchFieldException e) {
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        e.printStackTrace();
    } catch (NoSuchMethodException e) {
        e.printStackTrace();
    } catch (InvocationTargetException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static void dumphreadLocals()
        throws NoSuchFieldException, IllegalAccessException, ClassNotFoundException {
    Thread thread = Thread.currentThread();
    Field threadLocalField = thread.getClass().getDeclaredField("threadLocals");
    threadLocalField.setAccessible(true);
    Object threadLocalTable = threadLocalField.get(thread);

    Class threadLocalMapClass = Class.forName("java.lang.ThreadLocal$ThreadLocalMap");
    //Class threadLocalMapClass = Class.forName(threadLocalField.getType().getName());
    Field tableField = threadLocalMapClass.getDeclaredField("table");
    tableField.setAccessible(true);/*from   ww  w. j a v  a 2  s. c  o m*/
    Object[] table = (Object[]) tableField.get(threadLocalTable);

    Class threadLocalMapEntryClass = Class.forName("java.lang.ThreadLocal$ThreadLocalMap$Entry");
    Field entryValueField = threadLocalMapEntryClass.getDeclaredField("value");
    entryValueField.setAccessible(true);

    //Field referenceField = Reference.class.getDeclaredField("referent") ;
    //referenceField.setAccessible(true);

    for (Object entry : table) {
        if (entry != null) {
            Object threadLocalValue = entryValueField.get(entry);
            printObject(threadLocalValue);
            //ThreadLocal threadLocal = (ThreadLocal)referenceField.get(entry);
            //System.out.println("thread local  value "+threadLocal);
        }
    }
}

From source file:Main.java

private static void registerFieldSetter(final Class<?> iClass, String fieldName, Field f) {
    // TRY TO GET THE VALUE BY ACCESSING DIRECTLY TO THE PROPERTY
    if (!f.isAccessible())
        f.setAccessible(true);

    setters.put(iClass.getName() + "." + fieldName, f);
}

From source file:com.oembedler.moon.graphql.engine.dfs.SchemaHelper.java

public static void replaceTypeReferencesForUnionType(final GraphQLSchema schema,
        final Set<GraphQLUnionType> graphQLUnionTypeMap) {
    Field graphQLTypesField = ReflectionUtils.findField(GraphQLUnionType.class, "types");
    graphQLTypesField.setAccessible(true);
    for (GraphQLUnionType graphQLUnionType : graphQLUnionTypeMap) {
        List<GraphQLType> graphQLTypes = new ArrayList<>();
        for (GraphQLType graphQLType : graphQLUnionType.getTypes()) {
            if (graphQLType instanceof GraphQLTypeReference) {
                graphQLTypes.add(schema.getType(graphQLType.getName()));
            } else {
                graphQLTypes.add(graphQLType);
            }//from www. j  ava  2s.co  m
        }
        ReflectionUtils.setField(graphQLTypesField, graphQLUnionType, graphQLTypes);
    }
}

From source file:Main.java

private static int getImageViewFieldValue(Object object, String fieldName) {
    int value = 0;
    try {//from  w  w  w  .  j  a  v  a2  s  .c om
        Field field = ImageView.class.getDeclaredField(fieldName);
        field.setAccessible(true);
        int fieldValue = (Integer) field.get(object);
        if (fieldValue > 0 && fieldValue < Integer.MAX_VALUE) {
            value = fieldValue;
        }
    } catch (Exception e) {
        Log.e("", e.getMessage());
    }
    return value;
}

From source file:springobjectmapper.ReflectionHelper.java

public static Field getField(Class<?> c, String name) {
    do {/*from w  ww  . j  a v  a2  s  .c  o  m*/
        try {
            Field field = c.getDeclaredField(name);
            field.setAccessible(true);
            return field;
        } catch (NoSuchFieldException ex) {
        } catch (Exception e) {
            ReflectionUtils.handleReflectionException(e);
        }
        c = c.getSuperclass();
    } while (c != null);
    throw new RuntimeException("Field " + name + " was not found!");
}

From source file:Main.java

@TargetApi(Build.VERSION_CODES.KITKAT)
private static boolean setProxyLollipop(final Context context, String host, int port) {
    System.setProperty("http.proxyHost", host);
    System.setProperty("http.proxyPort", port + "");
    System.setProperty("https.proxyHost", host);
    System.setProperty("https.proxyPort", port + "");
    try {//w w w.j a va  2s  .  c o  m
        Context appContext = context.getApplicationContext();
        Class applictionClass = Class.forName("android.app.Application");
        Field mLoadedApkField = applictionClass.getDeclaredField("mLoadedApk");
        mLoadedApkField.setAccessible(true);
        Object mloadedApk = mLoadedApkField.get(appContext);
        Class loadedApkClass = Class.forName("android.app.LoadedApk");
        Field mReceiversField = loadedApkClass.getDeclaredField("mReceivers");
        mReceiversField.setAccessible(true);
        ArrayMap receivers = (ArrayMap) mReceiversField.get(mloadedApk);
        for (Object receiverMap : receivers.values()) {
            for (Object receiver : ((ArrayMap) receiverMap).keySet()) {
                Class clazz = receiver.getClass();
                if (clazz.getName().contains("ProxyChangeListener")) {
                    Method onReceiveMethod = clazz.getDeclaredMethod("onReceive", Context.class, Intent.class);
                    Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);
                    onReceiveMethod.invoke(receiver, appContext, intent);
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
        return false;
    }

    return true;
}