diff options
Diffstat (limited to 'src/com/android/swe/browser/reflect/ReflectHelper.java')
| -rw-r--r-- | src/com/android/swe/browser/reflect/ReflectHelper.java | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/com/android/swe/browser/reflect/ReflectHelper.java b/src/com/android/swe/browser/reflect/ReflectHelper.java new file mode 100644 index 00000000..ffae7d39 --- /dev/null +++ b/src/com/android/swe/browser/reflect/ReflectHelper.java @@ -0,0 +1,163 @@ +/* + * Copyright (c) 2014, The Linux Foundation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of The Linux Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +package com.android.swe.browser.reflect; + +import android.util.Log; + +import java.lang.reflect.Constructor; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.lang.reflect.Field; + +public class ReflectHelper { + + private final static String LOGTAG = "ReflectHelper"; + + public static Object newObject(String className) { + Object obj = null; + try { + Class clazz = Class.forName(className); + obj = clazz.newInstance(); + } catch (Exception e) { + Log.e(LOGTAG, "An exception occured : " + e.getMessage()); + } + return obj; + } + + public static Object newObject(String className, Class[] argTypes, Object[] args) { + if (args == null || args.length == 0) { + return newObject(className); + } + Object obj = null; + try { + Class clazz = Class.forName(className); + Constructor ctor = clazz.getDeclaredConstructor(argTypes); + obj = ctor.newInstance(args); + } catch (Exception e) { + Log.e(LOGTAG, "An exception occured : " + e.getMessage() ); + } + return obj; + } + + public static Object invokeMethod(Object obj, String method, Class[] argTypes, Object[] args) { + Object result = null; + boolean modifiedAccessibility = false; + if (obj == null || method == null) { + throw new IllegalArgumentException("Object and Method must be supplied."); + } + try { + Method m = obj.getClass().getDeclaredMethod(method, argTypes); + if(m != null) { + // make it visible + if (!m.isAccessible()) { + modifiedAccessibility = true; + m.setAccessible(true); + } + result = m.invoke(obj, args); + if (modifiedAccessibility) + m.setAccessible(false); + } + } catch (Exception e) { + Log.e(LOGTAG, "An exception occured : " + e.getMessage() ); + } + return result; + } + + public static Object invokeStaticMethod(String className, String method, + Class[] argTypes, Object[] args) { + Object result = null; + boolean modifiedAccessibility = false; + if (className == null || method == null) { + throw new IllegalArgumentException("Object and Method must be supplied."); + } + try { + Class clazz = Class.forName(className); + Method m = clazz.getDeclaredMethod(method, argTypes); + if(m != null) { + // make it visible + if (!m.isAccessible()) { + modifiedAccessibility = true; + m.setAccessible(true); + } + result = m.invoke(null, args); + if (modifiedAccessibility) + m.setAccessible(false); + } + } catch (Exception e) { + Log.e(LOGTAG, "An exception occured : " + e.getMessage() ); + } + return result; + } + + public static Object getStaticVariable(String className, String fieldName) { + Object result = null; + boolean modifiedAccessibility = false; + try { + Class clazz = Class.forName(className); + Field f = clazz.getDeclaredField(fieldName); + if(f != null) { + if (!f.isAccessible()) { + modifiedAccessibility = true; + f.setAccessible(true); + } + f.setAccessible(true); + result = f.get(null); + if (modifiedAccessibility) + f.setAccessible(false); + } + } catch (Exception e) { + Log.e(LOGTAG, "An exception occured : " + e.getMessage() ); + } + return result; + } + + public static Object getVariable(Object obj, String fieldName) { + Object result = null; + boolean modifiedAccessibility = false; + try { + Class clazz = obj.getClass(); + Field f = clazz.getDeclaredField(fieldName); + if(f != null) { + if (!f.isAccessible()) { + modifiedAccessibility = true; + f.setAccessible(true); + } + f.setAccessible(true); + result = f.get(obj); + if (modifiedAccessibility) + f.setAccessible(false); + } + } catch (Exception e) { + Log.e(LOGTAG, "An exception occured : " + e.getMessage() ); + } + return result; + } +}
\ No newline at end of file |