| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package libcore.reflect; |
| |
| import java.lang.reflect.ParameterizedType; |
| import java.lang.reflect.Type; |
| import java.util.Arrays; |
| import java.util.Objects; |
| |
| public final class ParameterizedTypeImpl implements ParameterizedType { |
| private final ListOfTypes args; |
| private final ParameterizedTypeImpl ownerType0; // Potentially unresolved. |
| private Type ownerTypeRes; // Potentially unresolved. |
| private Class rawType; // Potentially unresolved. |
| private final String rawTypeName; |
| private final ClassLoader loader; |
| |
| public ParameterizedTypeImpl(ParameterizedTypeImpl ownerType, String rawTypeName, |
| ListOfTypes args, ClassLoader loader) { |
| if (args == null) { |
| throw new NullPointerException(); |
| } |
| this.ownerType0 = ownerType; |
| this.rawTypeName = rawTypeName; |
| this.args = args; |
| this.loader = loader; |
| } |
| |
| @Override |
| public Type[] getActualTypeArguments() { |
| return args.getResolvedTypes().clone(); |
| } |
| |
| @Override |
| public Type getOwnerType() { |
| if (ownerTypeRes == null) { |
| if (ownerType0 != null) { |
| ownerTypeRes = ownerType0.getResolvedType(); |
| } else { |
| ownerTypeRes = getRawType().getDeclaringClass(); |
| } |
| } |
| return ownerTypeRes; |
| } |
| |
| @Override |
| public Class getRawType() { |
| if (rawType == null) { |
| // Here the actual loading of the class has to be performed and the |
| // Exceptions have to be re-thrown TypeNotPresent... |
| // How to deal with member (nested) classes? |
| try { |
| rawType = Class.forName(rawTypeName, false, loader); |
| } catch (ClassNotFoundException e) { |
| throw new TypeNotPresentException(rawTypeName, e); |
| } |
| } |
| return rawType; |
| } |
| |
| Type getResolvedType() { |
| if (ownerType0 == null && args.getResolvedTypes().length == 0) { |
| return getRawType(); |
| } else { |
| return this; |
| } |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (!(o instanceof ParameterizedType)) { |
| return false; |
| } |
| ParameterizedType that = (ParameterizedType) o; |
| return Objects.equals(getRawType(), that.getRawType()) && |
| Objects.equals(getOwnerType(), that.getOwnerType()) && |
| Arrays.equals(args.getResolvedTypes(), that.getActualTypeArguments()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return 31 * (31 * Objects.hashCode(getRawType()) + Objects.hashCode(getOwnerType())) + |
| Arrays.hashCode(args.getResolvedTypes()); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| if (ownerType0 != null) { |
| // For nested types, use the ownerType because it or its parents may have their own |
| // type arguments. |
| sb.append(ownerType0); |
| sb.append('$'); |
| sb.append(getRawType().getSimpleName()); |
| } else { |
| sb.append(rawTypeName); |
| } |
| if (args.length() > 0) { |
| sb.append("<").append(args).append(">"); |
| } |
| return sb.toString(); |
| } |
| } |