| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * 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.intellij.util.xml; |
| |
| import com.intellij.util.SmartFMap; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Type; |
| import java.util.List; |
| |
| /** |
| * @author peter |
| */ |
| public final class JavaMethod implements AnnotatedElement { |
| public static final JavaMethod[] EMPTY_ARRAY = new JavaMethod[0]; |
| private static final Object NONE = new Object(); |
| |
| private final JavaMethodSignature mySignature; |
| private final Class myDeclaringClass; |
| private final Method myMethod; |
| private volatile SmartFMap<Class, Object> myAnnotationsMap = SmartFMap.emptyMap(); |
| |
| private JavaMethod(final Class declaringClass, final JavaMethodSignature signature) { |
| mySignature = signature; |
| myMethod = signature.findMethod(declaringClass); |
| assert myMethod != null : "No method " + signature + " in class " + declaringClass; |
| myDeclaringClass = myMethod.getDeclaringClass(); |
| } |
| |
| public final Class getDeclaringClass() { |
| return myDeclaringClass; |
| } |
| |
| public final JavaMethodSignature getSignature() { |
| return mySignature; |
| } |
| |
| public final List<Method> getHierarchy() { |
| return mySignature.getAllMethods(myDeclaringClass); |
| } |
| |
| public String getMethodName() { |
| return mySignature.getMethodName(); |
| } |
| |
| public final Method getMethod() { |
| return myMethod; |
| } |
| |
| public final Type[] getGenericParameterTypes() { |
| return myMethod.getGenericParameterTypes(); |
| } |
| |
| public final Type getGenericReturnType() { |
| return myMethod.getGenericReturnType(); |
| } |
| |
| public static JavaMethod getMethod(final Class declaringClass, final JavaMethodSignature signature) { |
| return new JavaMethod(declaringClass, signature); |
| } |
| |
| public static JavaMethod getMethod(final Class declaringClass, final Method method) { |
| return getMethod(declaringClass, new JavaMethodSignature(method)); |
| } |
| |
| public final Object invoke(final Object o, final Object... args) { |
| return DomReflectionUtil.invokeMethod(myMethod, o, args); |
| } |
| |
| public String toString() { |
| return "JavaMethod: " + myMethod.toString(); |
| } |
| |
| @NonNls |
| public final String getName() { |
| return myMethod.getName(); |
| } |
| |
| @Override |
| public final <T extends Annotation> T getAnnotation(Class<T> annotationClass) { |
| Object annotation = myAnnotationsMap.get(annotationClass); |
| if (annotation == null) { |
| myAnnotationsMap = myAnnotationsMap.plus(annotationClass, annotation = findAnnotation(annotationClass)); |
| } |
| //noinspection unchecked |
| return annotation == NONE ? null : (T)annotation; |
| } |
| |
| @NotNull |
| private Object findAnnotation(Class<? extends Annotation> annotationClass) { |
| final Annotation annotation = mySignature.findAnnotation(annotationClass, myDeclaringClass); |
| return annotation == null ? NONE : annotation; |
| } |
| |
| @Override |
| public boolean equals(final Object o) { |
| if (this == o) return true; |
| if (!(o instanceof JavaMethod)) return false; |
| |
| final JavaMethod that = (JavaMethod)o; |
| |
| if (!myDeclaringClass.equals(that.myDeclaringClass)) return false; |
| if (!mySignature.equals(that.mySignature)) return false; |
| |
| return true; |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = mySignature.hashCode(); |
| result = 31 * result + myDeclaringClass.hashCode(); |
| return result; |
| } |
| |
| public final Class getReturnType() { |
| return myMethod.getReturnType(); |
| } |
| |
| public Class<?>[] getParameterTypes() { |
| return myMethod.getParameterTypes(); |
| } |
| } |