120 lines
3.8 KiB
Java
120 lines
3.8 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.compat;
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import android.text.TextUtils;
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import android.util.Log;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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public final class CompatUtils {
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private static final String TAG = CompatUtils.class.getSimpleName();
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private CompatUtils() {
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// This utility class is not publicly instantiable.
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}
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public static Class<?> getClass(final String className) {
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try {
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return Class.forName(className);
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} catch (ClassNotFoundException e) {
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return null;
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}
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}
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public static Method getMethod(final Class<?> targetClass, final String name,
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final Class<?>... parameterTypes) {
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if (targetClass == null || TextUtils.isEmpty(name)) return null;
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try {
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return targetClass.getMethod(name, parameterTypes);
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} catch (SecurityException e) {
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// ignore
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} catch (NoSuchMethodException e) {
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// ignore
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}
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return null;
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}
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public static Field getField(final Class<?> targetClass, final String name) {
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if (targetClass == null || TextUtils.isEmpty(name)) return null;
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try {
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return targetClass.getField(name);
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} catch (SecurityException e) {
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// ignore
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} catch (NoSuchFieldException e) {
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// ignore
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}
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return null;
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}
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public static Constructor<?> getConstructor(final Class<?> targetClass,
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final Class<?> ... types) {
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if (targetClass == null || types == null) return null;
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try {
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return targetClass.getConstructor(types);
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} catch (SecurityException e) {
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// ignore
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} catch (NoSuchMethodException e) {
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// ignore
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}
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return null;
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}
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public static Object newInstance(final Constructor<?> constructor, final Object ... args) {
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if (constructor == null) return null;
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try {
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return constructor.newInstance(args);
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} catch (Exception e) {
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Log.e(TAG, "Exception in newInstance", e);
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}
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return null;
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}
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public static Object invoke(final Object receiver, final Object defaultValue,
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final Method method, final Object... args) {
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if (method == null) return defaultValue;
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try {
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return method.invoke(receiver, args);
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} catch (Exception e) {
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Log.e(TAG, "Exception in invoke", e);
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}
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return defaultValue;
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}
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public static Object getFieldValue(final Object receiver, final Object defaultValue,
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final Field field) {
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if (field == null) return defaultValue;
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try {
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return field.get(receiver);
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} catch (Exception e) {
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Log.e(TAG, "Exception in getFieldValue", e);
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}
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return defaultValue;
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}
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public static void setFieldValue(final Object receiver, final Field field, final Object value) {
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if (field == null) return;
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try {
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field.set(receiver, value);
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} catch (Exception e) {
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Log.e(TAG, "Exception in setFieldValue", e);
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}
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}
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}
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