Java Code Examples for java.lang.reflect.Field#getInt()

The following examples show how to use java.lang.reflect.Field#getInt() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: stratio-cassandra   File: CLibrary.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Get system file descriptor from FileDescriptor object.
 * @param descriptor - FileDescriptor objec to get fd from
 * @return file descriptor, -1 or error
 */
public static int getfd(FileDescriptor descriptor)
{
    Field field = FBUtilities.getProtectedField(descriptor.getClass(), "fd");

    if (field == null)
        return -1;

    try
    {
        return field.getInt(descriptor);
    }
    catch (Exception e)
    {
        JVMStabilityInspector.inspectThrowable(e);
        logger.warn("unable to read fd field from FileDescriptor");
    }

    return -1;
}
 
Example 2
Source Project: Pinview   File: Pinview.java    License: MIT License 6 votes vote down vote up
private void setCursorColor(EditText view, @ColorInt int color) {
    try {
        // Get the cursor resource id
        Field field = TextView.class.getDeclaredField("mCursorDrawableRes");
        field.setAccessible(true);
        int drawableResId = field.getInt(view);

        // Get the editor
        field = TextView.class.getDeclaredField("mEditor");
        field.setAccessible(true);
        Object editor = field.get(view);

        // Get the drawable and set a color filter
        Drawable drawable = ContextCompat.getDrawable(view.getContext(), drawableResId);
        if (drawable != null) {
            drawable.setColorFilter(color, PorterDuff.Mode.SRC_IN);
        }
        Drawable[] drawables = {drawable, drawable};

        // Set the drawables
        field = editor.getClass().getDeclaredField("mCursorDrawable");
        field.setAccessible(true);
        field.set(editor, drawables);
    } catch (Exception ignored) {
    }
}
 
Example 3
private static Map<Integer, String> buildJdbcTypeMap() {
	HashMap<Integer, String> map = new HashMap<Integer, String>();
	Field[] fields = java.sql.Types.class.getFields();
	if ( fields == null ) {
		throw new HibernateException( "Unexpected problem extracting JDBC type mapping codes from java.sql.Types" );
	}
	for ( Field field : fields ) {
		try {
			final int code = field.getInt( null );
			String old = map.put( code, field.getName() );
			if ( old != null ) {
				LOG.JavaSqlTypesMappedSameCodeMultipleTimes( code, old, field.getName() );
			}
		}
		catch ( IllegalAccessException e ) {
			throw new HibernateException( "Unable to access JDBC type mapping [" + field.getName() + "]", e );
		}
	}
	return Collections.unmodifiableMap( map );
}
 
Example 4
Source Project: Phantom   File: PluginInterceptActivity.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * 检查当前Activity是否是使用appcompat-v7主题,
 * 判断方式参考appcompat-v7 25.3.1版本,其他版本判断方式可能不同
 *
 * @return true使用appcompat-v7主题,false其他主题
 */
@SuppressFBWarnings("REC_CATCH_EXCEPTION")
private boolean useAppCompatTheme() {
    try {
        Class styleCls = mContentProxy.getClassLoader().findClassFast("android.support.v7.appcompat.R$styleable");
        Field themeField = styleCls.getDeclaredField("AppCompatTheme");
        themeField.setAccessible(true);
        int[] compatTheme = (int[]) themeField.get(null);
        Field actionBarField = styleCls.getDeclaredField("AppCompatTheme_windowActionBar");
        actionBarField.setAccessible(true);
        int compatActionBar = actionBarField.getInt(null);
        TypedArray a = obtainStyledAttributes(compatTheme);
        boolean res = a.hasValue(compatActionBar);
        a.recycle();
        return res;
    } catch (Exception e) {
        // 当插件中没有使用 appcompat 主题时,会进入到该异常分支。属于正常情况,不需要输出日志
        return false;
    }
}
 
Example 5
private static int getVKMnemonic(String key) {
    String s = String.valueOf(getMnemonic(key));
    if ( s == null || s.length() != 1) {
        return 0;
    }
    String vkString = "VK_" + s.toUpperCase();

    try {
        if (_keyEventClazz == null) {
            _keyEventClazz= Class.forName("java.awt.event.KeyEvent",
                             true, (ServiceDialog.class).getClassLoader());
        }
        Field field = _keyEventClazz.getDeclaredField(vkString);
        int value = field.getInt(null);
        return value;
    } catch (Exception e) {
    }
    return 0;
}
 
Example 6
/**
 * 设置状态栏字体图标为深色,需要 MIUIV6 以上
 *
 * @param window 需要设置的窗口
 * @param light  是否把状态栏字体及图标颜色设置为深色
 * @return boolean 成功执行返回 true
 */
@SuppressWarnings("unchecked")
public static boolean MIUISetStatusBarLightMode(Window window, boolean light) {
    boolean result = false;
    if (window != null) {
        Class clazz = window.getClass();
        try {
            int darkModeFlag;
            Class layoutParams = Class.forName("android.view.MiuiWindowManager$LayoutParams");
            Field field = layoutParams.getField("EXTRA_FLAG_STATUS_BAR_DARK_MODE");
            darkModeFlag = field.getInt(layoutParams);
            Method extraFlagField = clazz.getMethod("setExtraFlags", int.class, int.class);
            if (light) {
                extraFlagField.invoke(window, darkModeFlag, darkModeFlag);//状态栏透明且黑色字体
            } else {
                extraFlagField.invoke(window, 0, darkModeFlag);//清除黑色字体
            }
            result = true;
        } catch (Exception ignored) {

        }
    }
    return result;
}
 
Example 7
public static void setFailsafeFieldValue(Field field, Object target, Object value)
        throws NoSuchFieldException, IllegalAccessException {

    // let's make the field accessible
    field.setAccessible(true);

    // next we change the modifier in the Field instance to
    // not be final anymore, thus tricking reflection into
    // letting us modify the static final field
    Field modifiersField = Field.class.getDeclaredField("modifiers");
    modifiersField.setAccessible(true);
    int modifiers = modifiersField.getInt(field);

    // blank out the final bit in the modifiers int
    modifiers &= ~Modifier.FINAL;
    modifiersField.setInt(field, modifiers);

    try {
        FieldAccessor fa = ReflectionFactory.getReflectionFactory().newFieldAccessor(field, false);
        fa.set(target, value);
    } catch (NoSuchMethodError error) {
        field.set(target, value);
    }
}
 
Example 8
public static boolean miuiSetStatusBarLightMode(Window window, boolean dark) {
    boolean result = false;
    if (window != null) {
        Class<?> clazz = window.getClass();
        try {
            int darkModeFlag;
            @SuppressLint("PrivateApi")
            Class<?> layoutParams = Class.forName("android.view.MiuiWindowManager$LayoutParams");
            Field field = layoutParams.getField("EXTRA_FLAG_STATUS_BAR_DARK_MODE");
            darkModeFlag = field.getInt(layoutParams);
            Method extraFlagField = clazz.getMethod("setExtraFlags", int.class, int.class);
            if (dark) {
                extraFlagField.invoke(window, darkModeFlag, darkModeFlag);//状态栏透明且黑色字体
            } else {
                extraFlagField.invoke(window, 0, darkModeFlag);//清除黑色字体
            }
            result = true;
        } catch (Exception ignored) {

        }
    }
    return result;
}
 
Example 9
Source Project: netbeans   File: ProcessUtils.java    License: Apache License 2.0 6 votes vote down vote up
private static int getPID(Process process) {
    int pid = -1;

    try {
        if (process instanceof NativeProcess) {
            pid = ((NativeProcess) process).getPID();
        } else {
            String className = process.getClass().getName();
            // TODO: windows?...
            if ("java.lang.UNIXProcess".equals(className)) { // NOI18N
                Field f = process.getClass().getDeclaredField("pid"); // NOI18N
                f.setAccessible(true);
                pid = f.getInt(process);
            }
        }
    } catch (Throwable e) {
        org.netbeans.modules.nativeexecution.support.Logger.getInstance().log(Level.FINE, e.getMessage(), e);
    }

    return pid;
}
 
Example 10
Source Project: h2o-2   File: Arguments.java    License: Apache License 2.0 6 votes vote down vote up
@Override public String toString() {
  Field[] fields = getFields(this);
  String r="";
  for( Field field : fields ){
    String name = field.getName();
    Class cl = field.getType();
    try{
      if( cl.isPrimitive() ){
        if( cl == Boolean.TYPE ){
          boolean curval = field.getBoolean(this);
          if( curval ) r += " -"+name;
        }
        else if( cl == Integer.TYPE ) r+=" -"+name+"="+field.getInt(this);
        else if( cl == Float.TYPE )  r+=" -"+name+"="+field.getFloat(this);
        else if( cl == Double.TYPE )  r+=" -"+name+"="+field.getDouble(this);
        else if( cl == Long.TYPE )  r+=" -"+name+"="+field.getLong(this);
        else continue;
      } else if( cl == String.class )
        if (field.get(this)!=null) r+=" -"+name+"="+field.get(this);
    } catch( Exception e ) { Log.err("Argument failed with ",e); }
  }
  return r;
}
 
Example 11
/**
 * Returns a map of public static final integer fields in the specified
 * classes, to their String representations. An optional filter can be
 * specified to only include specific fields. The target map may be null, in
 * which case a new map is allocated and returned.
 *
 * <p>
 * This method is useful when debugging to quickly identify values returned
 * from an API.</p>
 *
 * @param filter the filter to use (optional)
 * @param target the target map (optional)
 * @param tokenClasses the classes to get tokens from
 *
 * @return the token map
 */
public static Map<Integer, String> apiClassTokens(TokenFilter filter, Map<Integer, String> target, Class<?>... tokenClasses) {
    if (target == null) {
        target = new HashMap<Integer, String>(64);
    }

    int TOKEN_MODIFIERS = Modifier.PUBLIC | Modifier.STATIC | Modifier.FINAL;

    for (Class<?> tokenClass : tokenClasses) {
        if (tokenClass == null) {
            continue;
        }

        for (Field field : tokenClass.getDeclaredFields()) {
            // Get only <public static final int> fields.
            if ((field.getModifiers() & TOKEN_MODIFIERS) == TOKEN_MODIFIERS && field.getType() == int.class) {
                try {
                    int value = field.getInt(null);
                    if (filter != null && !filter.accept(field, value)) {
                        continue;
                    }

                    String name = target.get(value);
                    target.put(value, name == null ? field.getName() : name + "|" + field.getName());
                } catch (IllegalAccessException e) {
                    // Ignore
                }
            }
        }
    }

    return target;
}
 
Example 12
Source Project: Exoplayer_VLC   File: LibVlcUtil.java    License: Apache License 2.0 5 votes vote down vote up
public static boolean isLolliPopOrLater()
{

    int LOLLIPOP = -1;
    try {
        Field f = Build.VERSION_CODES.class.getField("LOLLIPOP");
        if(f != null)
            LOLLIPOP =f.getInt(null);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return LOLLIPOP !=-1 && android.os.Build.VERSION.SDK_INT >= LOLLIPOP;//android.os.Build.VERSION_CODES.LOLLIPOP;
}
 
Example 13
/**
 * 设置状态栏图标为深色和魅族特定的文字风格
 * 可以用来判断是否为 Flyme 用户
 *
 * @param window 需要设置的窗口
 * @param light  是否把状态栏字体及图标颜色设置为深色
 * @return boolean 成功执行返回true
 */
public static boolean FlymeSetStatusBarLightMode(Window window, boolean light) {
    boolean result = false;
    if (window != null) {

        Android6SetStatusBarLightMode(window, light);

        // flyme 在 6.2.0.0A 支持了 Android 官方的实现方案,旧的方案失效
        // 高版本调用这个出现不可预期的 Bug,官方文档也没有给出完整的高低版本兼容方案
        if (SkinDeviceUtils.isFlymeLowerThan(7)) {
            try {
                WindowManager.LayoutParams lp = window.getAttributes();
                Field darkFlag = WindowManager.LayoutParams.class
                        .getDeclaredField("MEIZU_FLAG_DARK_STATUS_BAR_ICON");
                Field meizuFlags = WindowManager.LayoutParams.class
                        .getDeclaredField("meizuFlags");
                darkFlag.setAccessible(true);
                meizuFlags.setAccessible(true);
                int bit = darkFlag.getInt(null);
                int value = meizuFlags.getInt(lp);
                if (light) {
                    value |= bit;
                } else {
                    value &= ~bit;
                }
                meizuFlags.setInt(lp, value);
                window.setAttributes(lp);
                result = true;
            } catch (Exception ignored) {

            }
        } else if (SkinDeviceUtils.isFlyme()) {
            result = true;
        }
    }
    return result;
}
 
Example 14
Source Project: Mixin   File: ASM.java    License: MIT License 5 votes vote down vote up
private static int detectVersion() {
    int apiVersion = Opcodes.ASM4;
    
    for (Field field : Opcodes.class.getDeclaredFields()) {
        if (field.getType() != Integer.TYPE || !field.getName().startsWith("ASM")) {
            continue;
        }
        
        try {
            int version = field.getInt(null);
            
            // int patch = version & 0xFF;
            int minor = (version >> 8) & 0xFF;
            int major = (version >> 16) & 0xFF;
            boolean experimental = ((version >> 24) & 0xFF) != 0;
            
            if (major >= ASM.majorVersion) {
                ASM.maxVersion = field.getName();
                if (!experimental) {
                    apiVersion = version;
                    ASM.majorVersion = major;
                    ASM.minorVersion = minor;
                }
            }
        } catch (ReflectiveOperationException ex) {
            throw new Error(ex);
        }
    }
    
    return apiVersion;
}
 
Example 15
Source Project: DataLink   File: ProcessUtils.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * 获取进程id
 * 
 * @param process
 * @return
 */
public static int getPid(Process process) {
	if (process.getClass().getName().equals("java.lang.UNIXProcess")) {
		try {
			Field f = process.getClass().getDeclaredField("pid");
			f.setAccessible(true);
			return f.getInt(process);
		} catch (Throwable e) {
			throw new RuntimeException("something goew wrong when get pid", e);
		}
	} else {
		// 其它系统暂不支持
		throw new RuntimeException("unsupported operation system,can't get the pid");
	}
}
 
Example 16
public boolean hasEarpiece() {
	if(USE_CONNECTION_SERVICE){
		if(systemCallConnection!=null && systemCallConnection.getCallAudioState()!=null){
			int routeMask=systemCallConnection.getCallAudioState().getSupportedRouteMask();
			return (routeMask & (CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_WIRED_HEADSET))!=0;
		}
	}
	if(((TelephonyManager)getSystemService(TELEPHONY_SERVICE)).getPhoneType()!=TelephonyManager.PHONE_TYPE_NONE)
		return true;
	if (mHasEarpiece != null) {
		return mHasEarpiece;
	}

	// not calculated yet, do it now
	try {
		AudioManager am=(AudioManager)getSystemService(AUDIO_SERVICE);
		Method method = AudioManager.class.getMethod("getDevicesForStream", Integer.TYPE);
		Field field = AudioManager.class.getField("DEVICE_OUT_EARPIECE");
		int earpieceFlag = field.getInt(null);
		int bitmaskResult = (int) method.invoke(am, AudioManager.STREAM_VOICE_CALL);

		// check if masked by the earpiece flag
		if ((bitmaskResult & earpieceFlag) == earpieceFlag) {
			mHasEarpiece = Boolean.TRUE;
		} else {
			mHasEarpiece = Boolean.FALSE;
		}
	} catch (Throwable error) {
		if (BuildVars.LOGS_ENABLED) {
			FileLog.e("Error while checking earpiece! ", error);
		}
		mHasEarpiece = Boolean.TRUE;
	}

	return mHasEarpiece;
}
 
Example 17
Source Project: ViewSupport   File: ApiHelper.java    License: Apache License 2.0 5 votes vote down vote up
public static int getIntFieldIfExists(Class<?> klass, String fieldName,
        Class<?> obj, int defaultVal) {
    try {
        Field f = klass.getDeclaredField(fieldName);
        return f.getInt(obj);
    } catch (Exception e) {
        return defaultVal;
    }
}
 
Example 18
int getDepth(Throwable t) throws Exception {
  Field f = Throwable.class.getDeclaredField("depth");
  f.setAccessible(true); // it's private
  return f.getInt(t);
}
 
Example 19
public ServiceContextData( Class cls )
{
    if (ORB.ORBInitDebug)
        dprint( "ServiceContextData constructor called for class " + cls ) ;

    scClass = cls ;

    try {
        if (ORB.ORBInitDebug)
            dprint( "Finding constructor for " + cls ) ;

        // Find the appropriate constructor in cls
        Class[] args = new Class[2] ;
        args[0] = InputStream.class ;
        args[1] = GIOPVersion.class;
        try {
            scConstructor = cls.getConstructor( args ) ;
        } catch (NoSuchMethodException nsme) {
            throwBadParam( "Class does not have an InputStream constructor", nsme ) ;
        }

        if (ORB.ORBInitDebug)
            dprint( "Finding SERVICE_CONTEXT_ID field in " + cls ) ;

        // get the ID from the public static final int SERVICE_CONTEXT_ID
        Field fld = null ;
        try {
            fld = cls.getField( "SERVICE_CONTEXT_ID" ) ;
        } catch (NoSuchFieldException nsfe) {
            throwBadParam( "Class does not have a SERVICE_CONTEXT_ID member", nsfe ) ;
        } catch (SecurityException se) {
            throwBadParam( "Could not access SERVICE_CONTEXT_ID member", se ) ;
        }

        if (ORB.ORBInitDebug)
            dprint( "Checking modifiers of SERVICE_CONTEXT_ID field in " + cls ) ;

        int mod = fld.getModifiers() ;
        if (!Modifier.isPublic(mod) || !Modifier.isStatic(mod) ||
            !Modifier.isFinal(mod) )
            throwBadParam( "SERVICE_CONTEXT_ID field is not public static final", null ) ;

        if (ORB.ORBInitDebug)
            dprint( "Getting value of SERVICE_CONTEXT_ID in " + cls ) ;

        try {
            scId = fld.getInt( null ) ;
        } catch (IllegalArgumentException iae) {
            throwBadParam( "SERVICE_CONTEXT_ID not convertible to int", iae ) ;
        } catch (IllegalAccessException iae2) {
            throwBadParam( "Could not access value of SERVICE_CONTEXT_ID", iae2 ) ;
        }
    } catch (BAD_PARAM nssc) {
        if (ORB.ORBInitDebug)
            dprint( "Exception in ServiceContextData constructor: " + nssc ) ;
        throw nssc ;
    } catch (Throwable thr) {
        if (ORB.ORBInitDebug)
            dprint( "Unexpected Exception in ServiceContextData constructor: " +
                    thr ) ;
    }

    if (ORB.ORBInitDebug)
        dprint( "ServiceContextData constructor completed" ) ;
}
 
Example 20
Source Project: groovy   File: StaticInitTest.java    License: Apache License 2.0 4 votes vote down vote up
public void testInitOrder () throws NoSuchFieldException, IllegalAccessException, ClassNotFoundException {
    final Field f = new GroovyClassLoader().loadClass("org.codehaus.groovy.runtime.XforStaticInitTest", false, false, false).getField("field");
    assertTrue(!failed);
    f.getInt(null);
    assertTrue(failed);
}