1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package org.apache.harmony.luni.lang.reflect; 18 19 import java.lang.reflect.Type; 20 import java.util.ArrayList; 21 import java.util.List; 22 23 public final class ListOfTypes { 24 public static final ListOfTypes EMPTY = new ListOfTypes(0); 25 26 private final ArrayList<Type> types; 27 private Type[] resolvedTypes; 28 29 ListOfTypes(int capacity) { 30 types = new ArrayList<Type>(capacity); 31 } 32 33 ListOfTypes(Type[] types) { 34 this.types = new ArrayList<Type>(types.length); 35 for (Type type : types) { 36 this.types.add(type); 37 } 38 } 39 40 void add(Type type) { 41 if (type == null) { 42 throw new NullPointerException("type == null"); 43 } 44 types.add(type); 45 } 46 47 int length() { 48 return types.size(); 49 } 50 51 public Type[] getResolvedTypes() { 52 Type[] result = resolvedTypes; 53 return result != null ? result : (resolvedTypes = resolveTypes(types)); 54 } 55 56 private Type[] resolveTypes(List<Type> unresolved) { 57 Type[] result = new Type[unresolved.size()]; 58 for (int i = 0; i < unresolved.size(); i++) { 59 Type type = unresolved.get(i); 60 try { 61 result[i] = ((ImplForType) type).getResolvedType(); 62 } catch (ClassCastException e) { 63 result[i] = type; 64 } 65 } 66 return result; 67 } 68 69 @Override public String toString() { 70 StringBuilder result = new StringBuilder(); 71 for (int i = 0; i < types.size(); i++) { 72 if (i > 0) { 73 result.append(", "); 74 } 75 result.append(types.get(i)); 76 } 77 return result.toString(); 78 } 79 } 80
