Example usage for java.lang.reflect Method invoke

Introduction

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

Prototype

@CallerSensitive
@ForceInline 
@HotSpotIntrinsicCandidate
public Object invoke(Object obj, Object... args)
        throws IllegalAccessException, IllegalArgumentException, InvocationTargetException

Source Link

Document

Invokes the underlying method represented by this Method object, on the specified object with the specified parameters.

Usage

From source file:com.ery.ertc.estorm.util.Methods.java

public static <T> Object call(Class<T> clazz, T instance, String methodName, Class[] types, Object[] args)
        throws Exception {
    try {/*w w  w .  j ava  2  s. c o m*/
        Method m = clazz.getMethod(methodName, types);
        return m.invoke(instance, args);
    } catch (IllegalArgumentException arge) {
        LOG.fatal("Constructed invalid call. class=" + clazz.getName() + " method=" + methodName + " types="
                + Classes.stringify(types), arge);
        throw arge;
    } catch (NoSuchMethodException nsme) {
        throw new IllegalArgumentException("Can't find method " + methodName + " in " + clazz.getName() + "!",
                nsme);
    } catch (InvocationTargetException ite) {
        // unwrap the underlying exception and rethrow
        if (ite.getTargetException() != null) {
            if (ite.getTargetException() instanceof Exception) {
                throw (Exception) ite.getTargetException();
            } else if (ite.getTargetException() instanceof Error) {
                throw (Error) ite.getTargetException();
            }
        }
        throw new UndeclaredThrowableException(ite,
                "Unknown exception invoking " + clazz.getName() + "." + methodName + "()");
    } catch (IllegalAccessException iae) {
        throw new IllegalArgumentException("Denied access calling " + clazz.getName() + "." + methodName + "()",
                iae);
    } catch (SecurityException se) {
        LOG.fatal("SecurityException calling method. class=" + clazz.getName() + " method=" + methodName
                + " types=" + Classes.stringify(types), se);
        throw se;
    }
}

From source file:Main.java

public static <T extends Object, I, P extends I> T bind(final T component, final P param, final Class<I> type) {

    try {// w ww.ja  v a  2s. c  o  m
        final Method m = findMethod(component, "bind", param, type);
        m.setAccessible(true);
        m.invoke(component, param);
    } catch (final Exception e) {
        throw new UnsupportedOperationException("Could not bind component", e);
    }

    return component;

}

From source file:Main.java

public static boolean checkPermission(Context context, String permission) {
    boolean result = false;
    if (Build.VERSION.SDK_INT >= 23) {
        try {/*w w  w .j a va 2s  .co  m*/
            Class<?> clazz = Class.forName("android.content.Context");
            Method method = clazz.getMethod("checkSelfPermission", String.class);
            int rest = (Integer) method.invoke(context, permission);
            if (rest == PackageManager.PERMISSION_GRANTED) {
                result = true;
            } else {
                result = false;
            }
        } catch (Exception e) {
            result = false;
        }
    } else {
        PackageManager pm = context.getPackageManager();
        if (pm.checkPermission(permission, context.getPackageName()) == PackageManager.PERMISSION_GRANTED) {
            result = true;
        }
    }
    return result;
}

From source file:Main.java

public static void showInternalDebugLog() {
    try {//from   w  w w  . ja  v a  2s. co  m
        Class<?> clz = Class.forName("com.avos.avoscloud.AVOSCloud");
        Method startMethod = clz.getDeclaredMethod("showInternalDebugLog", Boolean.TYPE);
        startMethod.setAccessible(true);
        startMethod.invoke(null, true);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static String getId(Context context) {
    String id = null;/*  w ww. j  a va2 s .  c  o m*/

    try {
        Class aicclass = Class.forName("com.google.android.gms.ads.identifier.AdvertisingIdClient");
        Method m1 = aicclass.getMethod("getAdvertisingIdInfo", Context.class);
        Object oInfo = m1.invoke(null, context);

        Class infoclass = Class.forName("com.google.android.gms.ads.identifier.AdvertisingIdClient$Info");
        Method m2 = infoclass.getMethod("getId");

        id = (String) m2.invoke(oInfo);
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    } catch (NoSuchMethodException e) {
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        e.printStackTrace();
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
    } catch (InvocationTargetException e) {
        e.printStackTrace();
    } catch (NullPointerException e) {
        e.printStackTrace();
    }

    return id;

}

From source file:Main.java

@TargetApi(Build.VERSION_CODES.KITKAT)
public static boolean isAllowed(Context context, int op) {
    Log.d(TAG, "api level: " + Build.VERSION.SDK_INT);
    if (Build.VERSION.SDK_INT < 19) {
        return true;
    }//from  www . j  a v a  2s . co  m
    Log.d(TAG, "op is " + op);
    String packageName = context.getApplicationContext().getPackageName();
    AppOpsManager aom = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
    Class<?>[] types = new Class[] { int.class, int.class, String.class };
    Object[] args = new Object[] { op, Binder.getCallingUid(), packageName };
    try {
        Method method = aom.getClass().getDeclaredMethod("checkOpNoThrow", types);
        Object mode = method.invoke(aom, args);
        Log.d(TAG, "invoke checkOpNoThrow: " + mode);
        if ((mode instanceof Integer) && ((Integer) mode == AppOpsManager.MODE_ALLOWED)) {
            Log.d(TAG, "allowed");
            return true;
        }
    } catch (Exception e) {
        Log.e(TAG, "invoke error: " + e);
        e.printStackTrace();
    }
    return false;
}

From source file:Main.java

public static Object callMethod(Object obj, Method method, Object... params) {
    Object result = null;// w w  w.java  2s . c o  m
    if (method != null) {
        try {
            method.invoke(obj, params);
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }
    }
    return result;
}

From source file:Main.java

public static void invoke(Method m, Object o, Object[] signature) {
    if (m == null)
        return;/*from w w  w.j  a  v  a 2  s.  c o m*/
    try {
        m.invoke(o, signature);
    } catch (Exception ignore) {
    }
}

From source file:Main.java

static public Object invokeMethod(Object owner, String methodName, Object... args) throws Exception {
    Class<?> ownerClass = owner.getClass();
    Class<?>[] argsClass = null;

    if (args != null && args.length > 0) {
        argsClass = new Class<?>[args.length];

        for (int i = 0, j = args.length; i < j; i++) {
            argsClass[i] = args[i].getClass();
            if (argsClass[i] == Integer.class) {
                argsClass[i] = int.class;
            } else if (argsClass[i] == Boolean.class) {
                argsClass[i] = boolean.class;
            }//w w w .j  a  v  a  2s .  c  o m
        }
    }

    Method method = ownerClass.getDeclaredMethod(methodName, argsClass);
    method.setAccessible(true);
    return method.invoke(owner, args);
}

From source file:BareBonesBrowserLaunch.java

public static void openURL(String url) {
    String osName = System.getProperty("os.name");
    try {/*from w w w.j  a v a2 s .  c o  m*/
        if (osName.startsWith("Mac OS")) {
            Class fileMgr = Class.forName("com.apple.eio.FileManager");
            Method openURL = fileMgr.getDeclaredMethod("openURL", new Class[] { String.class });
            openURL.invoke(null, new Object[] { url });
        } else if (osName.startsWith("Windows"))
            Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + url);
        else { //assume Unix or Linux
            String[] browsers = { "firefox", "opera", "konqueror", "epiphany", "mozilla", "netscape" };
            String browser = null;
            for (int count = 0; count < browsers.length && browser == null; count++)
                if (Runtime.getRuntime().exec(new String[] { "which", browsers[count] }).waitFor() == 0)
                    browser = browsers[count];
            if (browser == null)
                throw new Exception("Could not find web browser");
            else
                Runtime.getRuntime().exec(new String[] { browser, url });
        }
    } catch (Exception e) {
        JOptionPane.showMessageDialog(null, errMsg + ":\n" + e.getLocalizedMessage());
    }
}