| /** |
| * Copyright (C) 2006 Google Inc. |
| * |
| * 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 com.google.inject.internal; |
| |
| import java.io.IOException; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.Member; |
| import java.util.Map; |
| |
| /** |
| * Creates stack trace elements for members. |
| * |
| * @author crazybob@google.com (Bob Lee) |
| */ |
| public class StackTraceElements { |
| |
| /*if[AOP]*/ |
| static final Map<Class<?>, LineNumbers> lineNumbersCache = new MapMaker().weakKeys().softValues() |
| .makeComputingMap(new Function<Class<?>, LineNumbers>() { |
| public LineNumbers apply(Class<?> key) { |
| try { |
| return new LineNumbers(key); |
| } |
| catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| }); |
| /*end[AOP]*/ |
| |
| public static Object forMember(Member member) { |
| if (member == null) { |
| return SourceProvider.UNKNOWN_SOURCE; |
| } |
| |
| Class declaringClass = member.getDeclaringClass(); |
| |
| /*if[AOP]*/ |
| LineNumbers lineNumbers = lineNumbersCache.get(declaringClass); |
| String fileName = lineNumbers.getSource(); |
| Integer lineNumberOrNull = lineNumbers.getLineNumber(member); |
| int lineNumber = lineNumberOrNull == null ? lineNumbers.getFirstLine() : lineNumberOrNull; |
| /*end[AOP]*/ |
| /*if[NO_AOP] |
| String fileName = null; |
| int lineNumber = -1; |
| end[NO_AOP]*/ |
| |
| Class<? extends Member> memberType = MoreTypes.memberType(member); |
| String memberName = memberType == Constructor.class ? "<init>" : member.getName(); |
| return new StackTraceElement(declaringClass.getName(), memberName, fileName, lineNumber); |
| } |
| |
| public static Object forType(Class<?> implementation) { |
| /*if[AOP]*/ |
| LineNumbers lineNumbers = lineNumbersCache.get(implementation); |
| int lineNumber = lineNumbers.getFirstLine(); |
| String fileName = lineNumbers.getSource(); |
| /*end[AOP]*/ |
| /*if[NO_AOP] |
| String fileName = null; |
| int lineNumber = -1; |
| end[NO_AOP]*/ |
| |
| return new StackTraceElement(implementation.getName(), "class", fileName, lineNumber); |
| } |
| } |