jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/ws/util/InjectionPlan.java@e530533619ec (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/util/InjectionPlan.java@e530533619ec (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/util/InjectionPlan.java

Thu, 12 Oct 2017 19:44:07 +0800

author: aoqi
date: Thu, 12 Oct 2017 19:44:07 +0800
changeset 760: e530533619ec
parent 0: 373ffda63c9a
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 1997, 2012, 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.ws.util;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.concurrent.Callable;
 import javax.annotation.Resource;
 import javax.xml.ws.WebServiceException;
 /**
  * Encapsulates which field/method the injection is done, and performs the
  * injection.
  */
 public abstract class InjectionPlan<T, R> {
     /**
      * Perform injection
      *
      * @param instance
      *            Instance
      * @param resource
      *            Resource
      */
     public abstract void inject(T instance, R resource);
     /**
      * Perform injection, but resource is only generated if injection is
      * necessary.
      *
      * @param instance
      * @param resource
      */
     public void inject(T instance, Callable<R> resource) {
         try {
             inject(instance, resource.call());
         } catch(Exception e) {
             throw new WebServiceException(e);
         }
     }
     /*
      * Injects to a field.
      */
     public static class FieldInjectionPlan<T, R> extends
             InjectionPlan<T, R> {
         private final Field field;
         public FieldInjectionPlan(Field field) {
             this.field = field;
         }
         public void inject(final T instance, final R resource) {
             AccessController.doPrivileged(new PrivilegedAction<Object>() {
                 public Object run() {
                     try {
                         if (!field.isAccessible()) {
                             field.setAccessible(true);
                         }
                         field.set(instance, resource);
                         return null;
                     } catch (IllegalAccessException e) {
                         throw new WebServiceException(e);
                     }
                 }
             });
         }
     }
     /*
      * Injects to a method.
      */
     public static class MethodInjectionPlan<T, R> extends
             InjectionPlan<T, R> {
         private final Method method;
         public MethodInjectionPlan(Method method) {
             this.method = method;
         }
         public void inject(T instance, R resource) {
             invokeMethod(method, instance, resource);
         }
     }
     /*
      * Helper for invoking a method with elevated privilege.
      */
     private static void invokeMethod(final Method method, final Object instance, final Object... args) {
         if(method==null)    return;
         AccessController.doPrivileged(new PrivilegedAction<Void>() {
             public Void run() {
                 try {
                     if (!method.isAccessible()) {
                         method.setAccessible(true);
                     }
                     method.invoke(instance,args);
                 } catch (IllegalAccessException e) {
                     throw new WebServiceException(e);
                 } catch (InvocationTargetException e) {
                     throw new WebServiceException(e);
                 }
                 return null;
             }
         });
     }
     /*
      * Combines multiple {@link InjectionPlan}s into one.
      */
     private static class Compositor<T, R> extends InjectionPlan<T, R> {
         private final Collection<InjectionPlan<T, R>> children;
         public Compositor(Collection<InjectionPlan<T, R>> children) {
             this.children = children;
         }
         public void inject(T instance, R res) {
             for (InjectionPlan<T, R> plan : children)
                 plan.inject(instance, res);
         }
         public void inject(T instance, Callable<R> resource) {
             if (!children.isEmpty()) {
                 super.inject(instance, resource);
             }
         }
     }
     /*
      * Creates an {@link InjectionPlan} that injects the given resource type to the given class.
      *
      * @param isStatic
      *      Only look for static field/method
      *
      */
     public static <T,R>
     InjectionPlan<T,R> buildInjectionPlan(Class<? extends T> clazz, Class<R> resourceType, boolean isStatic) {
         List<InjectionPlan<T,R>> plan = new ArrayList<InjectionPlan<T,R>>();
         Class<?> cl = clazz;
         while(cl != Object.class) {
             for(Field field: cl.getDeclaredFields()) {
                 Resource resource = field.getAnnotation(Resource.class);
                 if (resource != null) {
                     if(isInjectionPoint(resource, field.getType(),
                         "Incorrect type for field"+field.getName(),
                         resourceType)) {
                         if(isStatic && !Modifier.isStatic(field.getModifiers()))
                             throw new WebServiceException("Static resource "+resourceType+" cannot be injected to non-static "+field);
                         plan.add(new FieldInjectionPlan<T,R>(field));
                     }
                 }
             }
             cl = cl.getSuperclass();
         }
         cl = clazz;
         while(cl != Object.class) {
             for(Method method : cl.getDeclaredMethods()) {
                 Resource resource = method.getAnnotation(Resource.class);
                 if (resource != null) {
                     Class[] paramTypes = method.getParameterTypes();
                     if (paramTypes.length != 1)
                         throw new WebServiceException("Incorrect no of arguments for method "+method);
                     if(isInjectionPoint(resource,paramTypes[0],
                         "Incorrect argument types for method"+method.getName(),
                         resourceType)) {
                         if(isStatic && !Modifier.isStatic(method.getModifiers()))
                             throw new WebServiceException("Static resource "+resourceType+" cannot be injected to non-static "+method);
                         plan.add(new MethodInjectionPlan<T,R>(method));
                     }
                 }
             }
             cl = cl.getSuperclass();
         }
         return new Compositor<T,R>(plan);
     }
     /*
      * Returns true if the combination of {@link Resource} and the field/method type
      * are consistent for {@link WebServiceContext} injection.
      */
     private static boolean isInjectionPoint(Resource resource, Class fieldType, String errorMessage, Class resourceType ) {
         Class t = resource.type();
         if (t.equals(Object.class)) {
             return fieldType.equals(resourceType);
         } else if (t.equals(resourceType)) {
             if (fieldType.isAssignableFrom(resourceType)) {
                 return true;
             } else {
                 // type compatibility error
                 throw new WebServiceException(errorMessage);
             }
         }
         return false;
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/sun/xml/internal/ws/util/InjectionPlan.java@e530533619ec (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/util/InjectionPlan.java