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 java.lang.reflect.Constructor; 21 import java.lang.reflect.InvocationTargetException; 22 23 import android.content.Context; 24 import android.util.Log; 25 26 import com.android.mms.LogTag; 27 import com.android.mms.model.Model; 28 29 /** 30 * The factory of concrete presenters. 31 */ 32 public class PresenterFactory { 33 private static final String TAG = LogTag.TAG; 34 private static final String PRESENTER_PACKAGE = "com.android.mms.ui."; 35 36 public static Presenter getPresenter(String className, Context context, 37 ViewInterface view, Model model) { 38 try { 39 if (className.indexOf(".") == -1) { 40 className = PRESENTER_PACKAGE + className; 41 } 42 43 Class c = Class.forName(className); 44 Constructor constructor = c.getConstructor( 45 Context.class, ViewInterface.class, Model.class); 46 return (Presenter) constructor.newInstance(context, view, model); 47 } catch (ClassNotFoundException e) { 48 Log.e(TAG, "Type not found: " + className, e); 49 } catch (NoSuchMethodException e) { 50 // Impossible to reach here. 51 Log.e(TAG, "No such constructor.", e); 52 } catch (InvocationTargetException e) { 53 Log.e(TAG, "Unexpected InvocationTargetException", e); 54 } catch (IllegalAccessException e) { 55 Log.e(TAG, "Unexpected IllegalAccessException", e); 56 } catch (InstantiationException e) { 57 Log.e(TAG, "Unexpected InstantiationException", e); 58 } 59 60 return null; 61 } 62 } 63
