jdk8-mips64-public/jaxws: src/share/jaxws_classes/javax/xml/soap/FactoryFinder.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/javax/xml/soap/FactoryFinder.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/javax/xml/soap/FactoryFinder.java

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

author: aoqi
date: Thu, 31 Aug 2017 15:18:52 +0800
changeset 637: 9c07ef4934dd
parent 384: 8f2986ff0235
parent 0: 373ffda63c9a
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 2004, 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 javax.xml.soap;
 import java.io.*;
 import java.util.Properties;
 class FactoryFinder {
     /**
      * Creates an instance of the specified class using the specified
      * <code>ClassLoader</code> object.
      *
      * @exception SOAPException if the given class could not be found
      *            or could not be instantiated
      */
     private static Object newInstance(String className,
                                       ClassLoader classLoader)
             throws SOAPException
     {
         try {
             Class spiClass = safeLoadClass(className, classLoader);
             return spiClass.newInstance();
         } catch (ClassNotFoundException x) {
             throw new SOAPException("Provider " + className + " not found", x);
         } catch (Exception x) {
             throw new SOAPException("Provider " + className + " could not be instantiated: " + x, x);
         }
     }
     /**
      * Finds the implementation <code>Class</code> object for the given
      * factory name, or null if that fails.
      * <P>
      * This method is package private so that this code can be shared.
      *
      * @return the <code>Class</code> object of the specified message factory;
      *         or <code>null</code>
      *
      * @param factoryId             the name of the factory to find, which is
      *                              a system property
      * @exception SOAPException if there is a SOAP error
      */
     static Object find(String factoryId)
             throws SOAPException
     {
         return find(factoryId, null, false);
     }
     /**
      * Finds the implementation <code>Class</code> object for the given
      * factory name, or if that fails, finds the <code>Class</code> object
      * for the given fallback class name. The arguments supplied must be
      * used in order. If using the first argument is successful, the second
      * one will not be used.
      * <P>
      * This method is package private so that this code can be shared.
      *
      * @return the <code>Class</code> object of the specified message factory;
      *         may be <code>null</code>
      *
      * @param factoryId             the name of the factory to find, which is
      *                              a system property
      * @param fallbackClassName     the implementation class name, which is
      *                              to be used only if nothing else
      *                              is found; <code>null</code> to indicate that
      *                              there is no fallback class name
      * @exception SOAPException if there is a SOAP error
      */
     static Object find(String factoryId, String fallbackClassName)
             throws SOAPException
     {
         return find(factoryId, fallbackClassName, true);
     }
     /**
      * Finds the implementation <code>Class</code> object for the given
      * factory name, or if that fails, finds the <code>Class</code> object
      * for the given default class name, but only if <code>tryFallback</code>
      * is <code>true</code>.  The arguments supplied must be used in order
      * If using the first argument is successful, the second one will not
      * be used.  Note the default class name may be needed even if fallback
      * is not to be attempted, so certain error conditions can be handled.
      * <P>
      * This method is package private so that this code can be shared.
      *
      * @return the <code>Class</code> object of the specified message factory;
      *         may not be <code>null</code>
      *
      * @param factoryId             the name of the factory to find, which is
      *                              a system property
      * @param defaultClassName      the implementation class name, which is
      *                              to be used only if nothing else
      *                              is found; <code>null</code> to indicate
      *                              that there is no default class name
      * @param tryFallback           whether to try the default class as a
      *                              fallback
      * @exception SOAPException if there is a SOAP error
      */
     static Object find(String factoryId, String defaultClassName,
                        boolean tryFallback) throws SOAPException {
         ClassLoader classLoader;
         try {
             classLoader = Thread.currentThread().getContextClassLoader();
         } catch (Exception x) {
             throw new SOAPException(x.toString(), x);
         }
         // Use the system property first
         try {
             String systemProp =
                     System.getProperty( factoryId );
             if( systemProp!=null) {
                 return newInstance(systemProp, classLoader);
             }
         } catch (SecurityException se) {
         }
         // try to read from $java.home/lib/jaxm.properties
         try {
             String javah=System.getProperty( "java.home" );
             String configFile = javah + File.separator +
                     "lib" + File.separator + "jaxm.properties";
             File f=new File( configFile );
             if( f.exists()) {
                 Properties props=new Properties();
                 props.load( new FileInputStream(f));
                 String factoryClassName = props.getProperty(factoryId);
                 return newInstance(factoryClassName, classLoader);
             }
         } catch(Exception ex ) {
         }
         String serviceId = "META-INF/services/" + factoryId;
         // try to find services in CLASSPATH
         try {
             InputStream is=null;
             if (classLoader == null) {
                 is=ClassLoader.getSystemResourceAsStream(serviceId);
             } else {
                 is=classLoader.getResourceAsStream(serviceId);
             }
             if( is!=null ) {
                 BufferedReader rd =
                         new BufferedReader(new InputStreamReader(is, "UTF-8"));
                 String factoryClassName = rd.readLine();
                 rd.close();
                 if (factoryClassName != null &&
                         ! "".equals(factoryClassName)) {
                     return newInstance(factoryClassName, classLoader);
                 }
             }
         } catch( Exception ex ) {
         }
         // If not found and fallback should not be tried, return a null result.
         if (!tryFallback)
             return null;
         // We didn't find the class through the usual means so try the default
         // (built in) factory if specified.
         if (defaultClassName == null) {
             throw new SOAPException(
                     "Provider for " + factoryId + " cannot be found", null);
         }
         return newInstance(defaultClassName, classLoader);
     }
     /**
      * Loads the class, provided that the calling thread has an access to the
      * class being loaded. If this is the specified default factory class and it
      * is restricted by package.access we get a SecurityException and can do a
      * Class.forName() on it so it will be loaded by the bootstrap class loader.
      */
     private static Class safeLoadClass(String className,
                                        ClassLoader classLoader)
             throws ClassNotFoundException {
         try {
             // make sure that the current thread has an access to the package of the given name.
             SecurityManager s = System.getSecurityManager();
             if (s != null) {
                 int i = className.lastIndexOf('.');
                 if (i != -1) {
                     s.checkPackageAccess(className.substring(0, i));
                 }
             }
             if (classLoader == null)
                 return Class.forName(className);
             else
                 return classLoader.loadClass(className);
         } catch (SecurityException se) {
             // (only) default implementation can be loaded
             // using bootstrap class loader:
             if (isDefaultImplementation(className))
                 return Class.forName(className);
             throw se;
         }
     }
     private static boolean isDefaultImplementation(String className) {
         return MessageFactory.DEFAULT_MESSAGE_FACTORY.equals(className) ||
                 SOAPFactory.DEFAULT_SOAP_FACTORY.equals(className) ||
                 SOAPConnectionFactory.DEFAULT_SOAP_CONNECTION_FACTORY.equals(className) ||
                 SAAJMetaFactory.DEFAULT_META_FACTORY_CLASS.equals(className);
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/javax/xml/soap/FactoryFinder.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/javax/xml/soap/FactoryFinder.java