1 /* 2 * Copyright (C) 2008 Esmertec AG. 3 * Copyright (C) 2008 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package com.android.mms.ui; 19 20 import android.content.Context; 21 import android.util.Log; 22 23 import java.lang.reflect.Constructor; 24 import java.lang.reflect.InvocationTargetException; 25 26 import com.android.mms.model.Model; 27 28 /** 29 * The factory of concrete presenters. 30 */ 31 public class PresenterFactory { 32 private static final String TAG = "PresenterFactory"; 33 private static final String PRESENTER_PACKAGE = "com.android.mms.ui."; 34 35 public static Presenter getPresenter(String className, Context context, 36 ViewInterface view, Model model) { 37 try { 38 if (className.indexOf(".") == -1) { 39 className = PRESENTER_PACKAGE + className; 40 } 41 42 Class c = Class.forName(className); 43 Constructor constructor = c.getConstructor( 44 Context.class, ViewInterface.class, Model.class); 45 return (Presenter) constructor.newInstance(context, view, model); 46 } catch (ClassNotFoundException e) { 47 Log.e(TAG, "Type not found: " + className, e); 48 } catch (NoSuchMethodException e) { 49 // Impossible to reach here. 50 Log.e(TAG, "No such constructor.", e); 51 } catch (InvocationTargetException e) { 52 Log.e(TAG, "Unexpected InvocationTargetException", e); 53 } catch (IllegalAccessException e) { 54 Log.e(TAG, "Unexpected IllegalAccessException", e); 55 } catch (InstantiationException e) { 56 Log.e(TAG, "Unexpected InstantiationException", e); 57 } 58 59 return null; 60 } 61 } 62
