| /** |
| * Copyright (C) 2008 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.grapher; |
| |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.Member; |
| import java.lang.reflect.Method; |
| import java.util.List; |
| |
| import com.google.common.base.Join; |
| import com.google.common.collect.Lists; |
| import com.google.inject.Key; |
| import com.google.inject.TypeLiteral; |
| import com.google.inject.internal.ProviderMethod; |
| import com.google.inject.internal.StackTraceElements; |
| |
| /** |
| * Reasonable implementation for {@link NameFactory}. Mostly takes various |
| * {@link Object#toString()}s and strips package names out of them so that |
| * they'll fit on the graph. |
| * |
| * @author phopkins@gmail.com (Pete Hopkins) |
| */ |
| public class ShortNameFactory implements NameFactory { |
| public String getMemberName(Member member) { |
| if (member instanceof Constructor) { |
| return "<init>"; |
| } else if (member instanceof Method) { |
| return "#" + member.getName() + "(...)"; |
| } else { |
| return member.getName(); |
| } |
| } |
| |
| public String getAnnotationName(Key<?> key) { |
| Annotation annotation = key.getAnnotation(); |
| Class<? extends Annotation> annotationType = key.getAnnotationType(); |
| if (annotation != null) { |
| annotationType = annotation.annotationType(); |
| |
| String annotationString = annotation.toString(); |
| String canonicalName = annotationType.getName(); |
| String simpleName = annotationType.getSimpleName(); |
| |
| return annotationString.replace(canonicalName, simpleName).replace("()", ""); |
| } else if (annotationType != null) { |
| return "@" + annotationType.getSimpleName(); |
| } else { |
| return ""; |
| } |
| } |
| |
| public String getClassName(Key<?> key) { |
| TypeLiteral<?> typeLiteral = key.getTypeLiteral(); |
| return stripPackages(typeLiteral.toString()); |
| } |
| |
| public String getInstanceName(Object instance) { |
| if (instance instanceof ProviderMethod) { |
| return getMethodString(((ProviderMethod<?>) instance).getMethod()); |
| } |
| |
| if (instance instanceof CharSequence) { |
| return "\"" + instance + "\""; |
| } |
| |
| try { |
| if (instance.getClass().getMethod("toString").getDeclaringClass().equals(Object.class)) { |
| return stripPackages(instance.getClass().getName()); |
| } |
| } catch (SecurityException e) { |
| throw new AssertionError(e); |
| } catch (NoSuchMethodException e) { |
| throw new AssertionError(e); |
| } |
| |
| return instance.toString(); |
| } |
| |
| /** |
| * Returns a name for a Guice "source" object. This will typically be either |
| * a {@link StackTraceElement} for when the binding is made to the instance, |
| * or a {@link Method} when a provider method is used. |
| */ |
| public String getSourceName(Object source) { |
| if (source instanceof Method) { |
| source = StackTraceElements.forMember((Method) source); |
| } |
| |
| if (source instanceof StackTraceElement) { |
| return getFileString((StackTraceElement) source); |
| } |
| |
| return stripPackages(source.toString()); |
| } |
| |
| protected String getFileString(StackTraceElement stackTraceElement) { |
| return stackTraceElement.getFileName() + ":" + stackTraceElement.getLineNumber(); |
| } |
| |
| protected String getMethodString(Method method) { |
| List<String> paramStrings = Lists.newArrayList(); |
| for (Class<?> paramType : method.getParameterTypes()) { |
| paramStrings.add(paramType.getSimpleName()); |
| } |
| |
| String paramString = Join.join(", ", paramStrings); |
| return "#" + method.getName() + "(" + paramString + ")"; |
| } |
| |
| /** |
| * Eliminates runs of lowercase characters and numbers separated by periods. |
| * Seems to remove packages from fully-qualified type names pretty well. |
| */ |
| private String stripPackages(String str) { |
| return str.replaceAll("(^|[< .\\(])([a-z0-9]+\\.)*", "$1"); |
| } |
| } |