jdk8-mips64-public/jaxws: comparison src/share/jaxws_classes/com/sun/xml/internal/bind/v2/ClassFactory.java

--1:000000000000
+:373ffda63c9a
+/*
+* Copyright (c) 1997, 2011, 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;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.lang.ref.WeakReference;
+import java.util.Map;
+import java.util.WeakHashMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import com.sun.xml.internal.bind.Util;
+/**
+* Creates new instances of classes.
+*
+* <p>
+* This code handles the case where the class is not public or the constructor is
+* not public.
+*
+* @since 2.0
+* @author Kohsuke Kawaguchi
+*/
+public final class ClassFactory {
+private static final Class[] emptyClass = new Class[0];
+private static final Object[] emptyObject = new Object[0];
+private static final Logger logger = Util.getClassLogger();
+/**
+* Cache from a class to its default constructor.
+*
+* To avoid synchronization among threads, we use {@link ThreadLocal}.
+*/
+private static final ThreadLocal<Map<Class, WeakReference<Constructor>>> tls = new ThreadLocal<Map<Class,WeakReference<Constructor>>>() {
+@Override
+public Map<Class,WeakReference<Constructor>> initialValue() {
+return new WeakHashMap<Class,WeakReference<Constructor>>();
+}
+};
+public static void cleanCache() {
+if (tls != null) {
+try {
+tls.remove();
+} catch (Exception e) {
+logger.log(Level.WARNING, "Unable to clean Thread Local cache of classes used in Unmarshaller: {0}", e.getLocalizedMessage());
+}
+}
+}
+/**
+* Creates a new instance of the class but throw exceptions without catching it.
+*/
+public static <T> T create0( final Class<T> clazz ) throws IllegalAccessException, InvocationTargetException, InstantiationException {
+Map<Class,WeakReference<Constructor>> m = tls.get();
+Constructor<T> cons = null;
+WeakReference<Constructor> consRef = m.get(clazz);
+if(consRef!=null)
+cons = consRef.get();
+if(cons==null) {
+try {
+cons = clazz.getDeclaredConstructor(emptyClass);
+} catch (NoSuchMethodException e) {
+logger.log(Level.INFO,"No default constructor found on "+clazz,e);
+NoSuchMethodError exp;
+if(clazz.getDeclaringClass()!=null && !Modifier.isStatic(clazz.getModifiers())) {
+exp = new NoSuchMethodError(Messages.NO_DEFAULT_CONSTRUCTOR_IN_INNER_CLASS.format(clazz.getName()));
+} else {
+exp = new NoSuchMethodError(e.getMessage());
+}
+exp.initCause(e);
+throw exp;
+}
+int classMod = clazz.getModifiers();
+if(!Modifier.isPublic(classMod) || !Modifier.isPublic(cons.getModifiers())) {
+// attempt to make it work even if the constructor is not accessible
+try {
+cons.setAccessible(true);
+} catch(SecurityException e) {
+// but if we don't have a permission to do so, work gracefully.
+logger.log(Level.FINE,"Unable to make the constructor of "+clazz+" accessible",e);
+throw e;
+}
+}
+m.put(clazz,new WeakReference<Constructor>(cons));
+}
+return cons.newInstance(emptyObject);
+}
+/**
+* The same as {@link #create0} but with an error handling to make
+* the instantiation error fatal.
+*/
+public static <T> T create( Class<T> clazz ) {
+try {
+return create0(clazz);
+} catch (InstantiationException e) {
+logger.log(Level.INFO,"failed to create a new instance of "+clazz,e);
+throw new InstantiationError(e.toString());
+} catch (IllegalAccessException e) {
+logger.log(Level.INFO,"failed to create a new instance of "+clazz,e);
+throw new IllegalAccessError(e.toString());
+} catch (InvocationTargetException e) {
+Throwable target = e.getTargetException();
+// most likely an error on the user's code.
+// just let it through for the ease of debugging
+if(target instanceof RuntimeException)
+throw (RuntimeException)target;
+// error. just forward it for the ease of debugging
+if(target instanceof Error)
+throw (Error)target;
+// a checked exception.
+// not sure how we should report this error,
+// but for now we just forward it by wrapping it into a runtime exception
+throw new IllegalStateException(target);
+}
+}
+/**
+*  Call a method in the factory class to get the object.
+*/
+public static Object create(Method method) {
+Throwable errorMsg;
+try {
+return method.invoke(null, emptyObject);
+} catch (InvocationTargetException ive) {
+Throwable target = ive.getTargetException();
+if(target instanceof RuntimeException)
+throw (RuntimeException)target;
+if(target instanceof Error)
+throw (Error)target;
+throw new IllegalStateException(target);
+} catch (IllegalAccessException e) {
+logger.log(Level.INFO,"failed to create a new instance of "+method.getReturnType().getName(),e);
+throw new IllegalAccessError(e.toString());
+} catch (IllegalArgumentException iae){
+logger.log(Level.INFO,"failed to create a new instance of "+method.getReturnType().getName(),iae);
+errorMsg = iae;
+} catch (NullPointerException npe){
+logger.log(Level.INFO,"failed to create a new instance of "+method.getReturnType().getName(),npe);
+errorMsg = npe;
+} catch (ExceptionInInitializerError eie){
+logger.log(Level.INFO,"failed to create a new instance of "+method.getReturnType().getName(),eie);
+errorMsg = eie;
+}
+NoSuchMethodError exp;
+exp = new NoSuchMethodError(errorMsg.getMessage());
+exp.initCause(errorMsg);
+throw exp;
+}
+/**
+* Infers the instanciable implementation class that can be assigned to the given field type.
+*
+* @return null
+*      if inference fails.
+*/
+public static <T> Class<? extends T> inferImplClass(Class<T> fieldType, Class[] knownImplClasses) {
+if(!fieldType.isInterface())
+return fieldType;
+for( Class<?> impl : knownImplClasses ) {
+if(fieldType.isAssignableFrom(impl))
+return impl.asSubclass(fieldType);
+}
+// if we can't find an implementation class,
+// let's just hope that we will never need to create a new object,
+// and returns null
+return null;
+}
+}

Mercurial > jdk8-mips64-public > jaxws / file comparison

comparison: src/share/jaxws_classes/com/sun/xml/internal/bind/v2/ClassFactory.java

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/ClassFactory.java