jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/bind/v2/model/nav/ReflectionNavigator.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/model/nav/ReflectionNavigator.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/model/nav/ReflectionNavigator.java

Thu, 31 Aug 2017 15:18:52 +0800

author: aoqi
date: Thu, 31 Aug 2017 15:18:52 +0800
changeset 637: 9c07ef4934dd
parent 450: b0c2840e2513
parent 0: 373ffda63c9a
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package com.sun.xml.internal.bind.v2.model.nav;
 import java.lang.reflect.Array;
 import java.lang.reflect.Field;
 import java.lang.reflect.GenericArrayType;
 import java.lang.reflect.GenericDeclaration;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
 import java.lang.reflect.TypeVariable;
 import java.lang.reflect.WildcardType;
 import java.util.Arrays;
 import java.util.Collection;
 import com.sun.xml.internal.bind.v2.runtime.Location;
 /**
  * {@link Navigator} implementation for {@code java.lang.reflect}.
  *
  */
 /*package*/final class ReflectionNavigator implements Navigator<Type, Class, Field, Method> {
 //  ----------  Singleton -----------------
     private static final ReflectionNavigator INSTANCE = new ReflectionNavigator();
     /*package*/static ReflectionNavigator getInstance() {
         return INSTANCE;
     }
     private ReflectionNavigator() {
     }
 //  ---------------------------------------
     public Class getSuperClass(Class clazz) {
         if (clazz == Object.class) {
             return null;
         }
         Class sc = clazz.getSuperclass();
         if (sc == null) {
             sc = Object.class;        // error recovery
         }
         return sc;
     }
     private static final TypeVisitor<Type, Class> baseClassFinder = new TypeVisitor<Type, Class>() {
         public Type onClass(Class c, Class sup) {
             // t is a raw type
             if (sup == c) {
                 return sup;
             }
             Type r;
             Type sc = c.getGenericSuperclass();
             if (sc != null) {
                 r = visit(sc, sup);
                 if (r != null) {
                     return r;
                 }
             }
             for (Type i : c.getGenericInterfaces()) {
                 r = visit(i, sup);
                 if (r != null) {
                     return r;
                 }
             }
             return null;
         }
         public Type onParameterizdType(ParameterizedType p, Class sup) {
             Class raw = (Class) p.getRawType();
             if (raw == sup) {
                 // p is of the form sup<...>
                 return p;
             } else {
                 // recursively visit super class/interfaces
                 Type r = raw.getGenericSuperclass();
                 if (r != null) {
                     r = visit(bind(r, raw, p), sup);
                 }
                 if (r != null) {
                     return r;
                 }
                 for (Type i : raw.getGenericInterfaces()) {
                     r = visit(bind(i, raw, p), sup);
                     if (r != null) {
                         return r;
                     }
                 }
                 return null;
             }
         }
         public Type onGenericArray(GenericArrayType g, Class sup) {
             // not clear what I should do here
             return null;
         }
         public Type onVariable(TypeVariable v, Class sup) {
             return visit(v.getBounds()[0], sup);
         }
         public Type onWildcard(WildcardType w, Class sup) {
             // not clear what I should do here
             return null;
         }
         /**
          * Replaces the type variables in {@code t} by its actual arguments.
          *
          * @param decl
          *      provides a list of type variables. See {@link GenericDeclaration#getTypeParameters()}
          * @param args
          *      actual arguments. See {@link ParameterizedType#getActualTypeArguments()}
          */
         private Type bind(Type t, GenericDeclaration decl, ParameterizedType args) {
             return binder.visit(t, new BinderArg(decl, args.getActualTypeArguments()));
         }
     };
     private static class BinderArg {
         final TypeVariable[] params;
         final Type[] args;
         BinderArg(TypeVariable[] params, Type[] args) {
             this.params = params;
             this.args = args;
             assert params.length == args.length;
         }
         public BinderArg(GenericDeclaration decl, Type[] args) {
             this(decl.getTypeParameters(), args);
         }
         Type replace(TypeVariable v) {
             for (int i = 0; i < params.length; i++) {
                 if (params[i].equals(v)) {
                     return args[i];
                 }
             }
             return v;   // this is a free variable
         }
     }
     private static final TypeVisitor<Type, BinderArg> binder = new TypeVisitor<Type, BinderArg>() {
         public Type onClass(Class c, BinderArg args) {
             return c;
         }
         public Type onParameterizdType(ParameterizedType p, BinderArg args) {
             Type[] params = p.getActualTypeArguments();
             boolean different = false;
             for (int i = 0; i < params.length; i++) {
                 Type t = params[i];
                 params[i] = visit(t, args);
                 different |= t != params[i];
             }
             Type newOwner = p.getOwnerType();
             if (newOwner != null) {
                 newOwner = visit(newOwner, args);
             }
             different |= p.getOwnerType() != newOwner;
             if (!different) {
                 return p;
             }
             return new ParameterizedTypeImpl((Class<?>) p.getRawType(), params, newOwner);
         }
         public Type onGenericArray(GenericArrayType g, BinderArg types) {
             Type c = visit(g.getGenericComponentType(), types);
             if (c == g.getGenericComponentType()) {
                 return g;
             }
             return new GenericArrayTypeImpl(c);
         }
         public Type onVariable(TypeVariable v, BinderArg types) {
             return types.replace(v);
         }
         public Type onWildcard(WildcardType w, BinderArg types) {
             // TODO: this is probably still incorrect
             // bind( "? extends T" ) with T= "? extends Foo" should be "? extends Foo",
             // not "? extends (? extends Foo)"
             Type[] lb = w.getLowerBounds();
             Type[] ub = w.getUpperBounds();
             boolean diff = false;
             for (int i = 0; i < lb.length; i++) {
                 Type t = lb[i];
                 lb[i] = visit(t, types);
                 diff |= (t != lb[i]);
             }
             for (int i = 0; i < ub.length; i++) {
                 Type t = ub[i];
                 ub[i] = visit(t, types);
                 diff |= (t != ub[i]);
             }
             if (!diff) {
                 return w;
             }
             return new WildcardTypeImpl(lb, ub);
         }
     };
     public Type getBaseClass(Type t, Class sup) {
         return baseClassFinder.visit(t, sup);
     }
     public String getClassName(Class clazz) {
         return clazz.getName();
     }
     public String getTypeName(Type type) {
         if (type instanceof Class) {
             Class c = (Class) type;
             if (c.isArray()) {
                 return getTypeName(c.getComponentType()) + "[]";
             }
             return c.getName();
         }
         return type.toString();
     }
     public String getClassShortName(Class clazz) {
         return clazz.getSimpleName();
     }
     public Collection<? extends Field> getDeclaredFields(Class clazz) {
         return Arrays.asList(clazz.getDeclaredFields());
     }
     public Field getDeclaredField(Class clazz, String fieldName) {
         try {
             return clazz.getDeclaredField(fieldName);
         } catch (NoSuchFieldException e) {
             return null;
         }
     }
     public Collection<? extends Method> getDeclaredMethods(Class clazz) {
         return Arrays.asList(clazz.getDeclaredMethods());
     }
     public Class getDeclaringClassForField(Field field) {
         return field.getDeclaringClass();
     }
     public Class getDeclaringClassForMethod(Method method) {
         return method.getDeclaringClass();
     }
     public Type getFieldType(Field field) {
         if (field.getType().isArray()) {
             Class c = field.getType().getComponentType();
             if (c.isPrimitive()) {
                 return Array.newInstance(c, 0).getClass();
             }
         }
         return fix(field.getGenericType());
     }
     public String getFieldName(Field field) {
         return field.getName();
     }
     public String getMethodName(Method method) {
         return method.getName();
     }
     public Type getReturnType(Method method) {
         return fix(method.getGenericReturnType());
     }
     public Type[] getMethodParameters(Method method) {
         return method.getGenericParameterTypes();
     }
     public boolean isStaticMethod(Method method) {
         return Modifier.isStatic(method.getModifiers());
     }
     public boolean isFinalMethod(Method method) {
         return Modifier.isFinal(method.getModifiers());
     }
     public boolean isSubClassOf(Type sub, Type sup) {
         return erasure(sup).isAssignableFrom(erasure(sub));
     }
     public Class ref(Class c) {
         return c;
     }
     public Class use(Class c) {
         return c;
     }
     public Class asDecl(Type t) {
         return erasure(t);
     }
     public Class asDecl(Class c) {
         return c;
     }
     /**
      * Implements the logic for {@link #erasure(Type)}.
      */
     private static final TypeVisitor<Class, Void> eraser = new TypeVisitor<Class, Void>() {
         public Class onClass(Class c, Void v) {
             return c;
         }
         public Class onParameterizdType(ParameterizedType p, Void v) {
             // TODO: why getRawType returns Type? not Class?
             return visit(p.getRawType(), null);
         }
         public Class onGenericArray(GenericArrayType g, Void v) {
             return Array.newInstance(
                     visit(g.getGenericComponentType(), null),
 ).getClass();
         }
         public Class onVariable(TypeVariable tv, Void v) {
             return visit(tv.getBounds()[0], null);
         }
         public Class onWildcard(WildcardType w, Void v) {
             return visit(w.getUpperBounds()[0], null);
         }
     };
     /**
      * Returns the runtime representation of the given type.
      *
      * This corresponds to the notion of the erasure in JSR-14.
      *
      * <p>
      * Because of the difference in the way Annotation Processing and the Java reflection
      * treats primitive type and array type, we can't define this method
      * on {@link Navigator}.
      *
      * <p>
      * It made me realize how difficult it is to define the common navigation
      * layer for two different underlying reflection library. The other way
      * is to throw away the entire parameterization and go to the wrapper approach.
      */
     public <T> Class<T> erasure(Type t) {
         return eraser.visit(t, null);
     }
     public boolean isAbstract(Class clazz) {
         return Modifier.isAbstract(clazz.getModifiers());
     }
     public boolean isFinal(Class clazz) {
         return Modifier.isFinal(clazz.getModifiers());
     }
     /**
      * Returns the {@link Type} object that represents {@code clazz&lt;T1,T2,T3>}.
      */
     public Type createParameterizedType(Class rawType, Type... arguments) {
         return new ParameterizedTypeImpl(rawType, arguments, null);
     }
     public boolean isArray(Type t) {
         if (t instanceof Class) {
             Class c = (Class) t;
             return c.isArray();
         }
         if (t instanceof GenericArrayType) {
             return true;
         }
         return false;
     }
     public boolean isArrayButNotByteArray(Type t) {
         if (t instanceof Class) {
             Class c = (Class) t;
             return c.isArray() && c != byte[].class;
         }
         if (t instanceof GenericArrayType) {
             t = ((GenericArrayType) t).getGenericComponentType();
             return t != Byte.TYPE;
         }
         return false;
     }
     public Type getComponentType(Type t) {
         if (t instanceof Class) {
             Class c = (Class) t;
             return c.getComponentType();
         }
         if (t instanceof GenericArrayType) {
             return ((GenericArrayType) t).getGenericComponentType();
         }
         throw new IllegalArgumentException();
     }
     public Type getTypeArgument(Type type, int i) {
         if (type instanceof ParameterizedType) {
             ParameterizedType p = (ParameterizedType) type;
             return fix(p.getActualTypeArguments()[i]);
         } else {
             throw new IllegalArgumentException();
         }
     }
     public boolean isParameterizedType(Type type) {
         return type instanceof ParameterizedType;
     }
     public boolean isPrimitive(Type type) {
         if (type instanceof Class) {
             Class c = (Class) type;
             return c.isPrimitive();
         }
         return false;
     }
     public Type getPrimitive(Class primitiveType) {
         assert primitiveType.isPrimitive();
         return primitiveType;
     }
     public Location getClassLocation(final Class clazz) {
         return new Location() {
             @Override
             public String toString() {
                 return clazz.getName();
             }
         };
     }
     public Location getFieldLocation(final Field field) {
         return new Location() {
             @Override
             public String toString() {
                 return field.toString();
             }
         };
     }
     public Location getMethodLocation(final Method method) {
         return new Location() {
             @Override
             public String toString() {
                 return method.toString();
             }
         };
     }
     public boolean hasDefaultConstructor(Class c) {
         try {
             c.getDeclaredConstructor();
             return true;
         } catch (NoSuchMethodException e) {
             return false; // todo: do this WITHOUT exception throw
         }
     }
     public boolean isStaticField(Field field) {
         return Modifier.isStatic(field.getModifiers());
     }
     public boolean isPublicMethod(Method method) {
         return Modifier.isPublic(method.getModifiers());
     }
     public boolean isPublicField(Field field) {
         return Modifier.isPublic(field.getModifiers());
     }
     public boolean isEnum(Class c) {
         return Enum.class.isAssignableFrom(c);
     }
     public Field[] getEnumConstants(Class clazz) {
         try {
             Object[] values = clazz.getEnumConstants();
             Field[] fields = new Field[values.length];
             for (int i = 0; i < values.length; i++) {
                 fields[i] = clazz.getField(((Enum) values[i]).name());
             }
             return fields;
         } catch (NoSuchFieldException e) {
             // impossible
             throw new NoSuchFieldError(e.getMessage());
         }
     }
     public Type getVoidType() {
         return Void.class;
     }
     public String getPackageName(Class clazz) {
         String name = clazz.getName();
         int idx = name.lastIndexOf('.');
         if (idx < 0) {
             return "";
         } else {
             return name.substring(0, idx);
         }
     }
     @Override
     public Class loadObjectFactory(Class referencePoint, String pkg) {
         ClassLoader cl= SecureLoader.getClassClassLoader(referencePoint);
         if (cl == null)
             cl = SecureLoader.getSystemClassLoader();
         try {
             return cl.loadClass(pkg + ".ObjectFactory");
         } catch (ClassNotFoundException e) {
             return null;
         }
     }
     public boolean isBridgeMethod(Method method) {
         return method.isBridge();
     }
     public boolean isOverriding(Method method, Class base) {
         // this isn't actually correct,
         // as the JLS considers
         // class Derived extends Base<Integer> {
         //   Integer getX() { ... }
         // }
         // class Base<T> {
         //   T getX() { ... }
         // }
         // to be overrided. Handling this correctly needs a careful implementation
         String name = method.getName();
         Class[] params = method.getParameterTypes();
         while (base != null) {
             try {
                 if (base.getDeclaredMethod(name, params) != null) {
                     return true;
                 }
             } catch (NoSuchMethodException e) {
                 // recursively go into the base class
             }
             base = base.getSuperclass();
         }
         return false;
     }
     public boolean isInterface(Class clazz) {
         return clazz.isInterface();
     }
     public boolean isTransient(Field f) {
         return Modifier.isTransient(f.getModifiers());
     }
     public boolean isInnerClass(Class clazz) {
         return clazz.getEnclosingClass() != null && !Modifier.isStatic(clazz.getModifiers());
     }
     @Override
     public boolean isSameType(Type t1, Type t2) {
         return t1.equals(t2);
     }
     /**
      * JDK 5.0 has a bug of creating {@link GenericArrayType} where it shouldn't.
      * fix that manually to work around the problem.
      *
      * See bug 6202725.
      */
     private Type fix(Type t) {
         if (!(t instanceof GenericArrayType)) {
             return t;
         }
         GenericArrayType gat = (GenericArrayType) t;
         if (gat.getGenericComponentType() instanceof Class) {
             Class c = (Class) gat.getGenericComponentType();
             return Array.newInstance(c, 0).getClass();
         }
         return t;
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/model/nav/ReflectionNavigator.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/model/nav/ReflectionNavigator.java