src/share/jaxws_classes/com/sun/xml/internal/ws/assembler/MetroConfigLoader.java

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

author
aoqi
date
Thu, 12 Oct 2017 19:44:07 +0800
changeset 760
e530533619ec
parent 637
9c07ef4934dd
permissions
-rw-r--r--

merge

     1 /*
     2  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.  Oracle designates this
     8  * particular file as subject to the "Classpath" exception as provided
     9  * by Oracle in the LICENSE file that accompanied this code.
    10  *
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14  * version 2 for more details (a copy is included in the LICENSE file that
    15  * accompanied this code).
    16  *
    17  * You should have received a copy of the GNU General Public License version
    18  * 2 along with this work; if not, write to the Free Software Foundation,
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    20  *
    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    22  * or visit www.oracle.com if you need additional information or have any
    23  * questions.
    24  */
    26 package com.sun.xml.internal.ws.assembler;
    28 import com.sun.istack.internal.NotNull;
    29 import com.sun.istack.internal.logging.Logger;
    30 import com.sun.xml.internal.ws.api.ResourceLoader;
    31 import com.sun.xml.internal.ws.api.server.Container;
    32 import com.sun.xml.internal.ws.resources.TubelineassemblyMessages;
    33 import com.sun.xml.internal.ws.runtime.config.MetroConfig;
    34 import com.sun.xml.internal.ws.runtime.config.TubeFactoryList;
    35 import com.sun.xml.internal.ws.runtime.config.TubelineDefinition;
    36 import com.sun.xml.internal.ws.runtime.config.TubelineMapping;
    37 import com.sun.xml.internal.ws.util.xml.XmlUtil;
    39 import javax.xml.bind.JAXBContext;
    40 import javax.xml.bind.JAXBElement;
    41 import javax.xml.bind.Unmarshaller;
    42 import javax.xml.stream.XMLInputFactory;
    43 import javax.xml.ws.WebServiceException;
    44 import java.lang.reflect.Method;
    45 import java.lang.reflect.ReflectPermission;
    46 import java.net.MalformedURLException;
    47 import java.net.URI;
    48 import java.net.URISyntaxException;
    49 import java.net.URL;
    50 import java.security.*;
    51 import java.util.PropertyPermission;
    52 import java.util.logging.Level;
    54 /**
    55  * This class is responsible for locating and loading Metro configuration files
    56  * (both application jaxws-tubes.xml and default jaxws-tubes-default.xml).
    57  * <p/>
    58  * Once the configuration is loaded the class is able to resolve which tubeline
    59  * configuration belongs to each endpoint or endpoint client. This information is
    60  * then used in {@link TubelineAssemblyController} to construct the list of
    61  * {@link TubeCreator} objects that are used in the actual tubeline construction.
    62  *
    63  * @author Marek Potociar <marek.potociar at sun.com>
    64  */
    65 // TODO Move the logic of this class directly into MetroConfig class.
    66 class MetroConfigLoader {
    68     private static final Logger LOGGER = Logger.getLogger(MetroConfigLoader.class);
    70     private MetroConfigName defaultTubesConfigNames;
    72     private static interface TubeFactoryListResolver {
    74         TubeFactoryList getFactories(TubelineDefinition td);
    75     }
    77     private static final TubeFactoryListResolver ENDPOINT_SIDE_RESOLVER = new TubeFactoryListResolver() {
    79         public TubeFactoryList getFactories(TubelineDefinition td) {
    80             return (td != null) ? td.getEndpointSide() : null;
    81         }
    82     };
    83     private static final TubeFactoryListResolver CLIENT_SIDE_RESOLVER = new TubeFactoryListResolver() {
    85         public TubeFactoryList getFactories(TubelineDefinition td) {
    86             return (td != null) ? td.getClientSide() : null;
    87         }
    88     };
    89     //
    90     private MetroConfig defaultConfig;
    91     private URL defaultConfigUrl;
    92     private MetroConfig appConfig;
    93     private URL appConfigUrl;
    95     MetroConfigLoader(Container container, MetroConfigName defaultTubesConfigNames) {
    96         this.defaultTubesConfigNames = defaultTubesConfigNames;
    97         ResourceLoader spiResourceLoader = null;
    98         if (container != null) {
    99             spiResourceLoader = container.getSPI(ResourceLoader.class);
   100         }
   101         // if spi resource can't load resource, default (MetroConfigUrlLoader) is used;
   102         // it searches the classpath, so it would be most probably used
   103         // when using jaxws- or metro-defaults from jaxws libraries
   104         init(container, spiResourceLoader, new MetroConfigUrlLoader(container));
   105     }
   107     private void init(Container container, ResourceLoader... loaders) {
   109         String appFileName = null;
   110         String defaultFileName = null;
   111         if (container != null) {
   112             MetroConfigName mcn = container.getSPI(MetroConfigName.class);
   113             if (mcn != null) {
   114                 appFileName = mcn.getAppFileName();
   115                 defaultFileName = mcn.getDefaultFileName();
   116             }
   117         }
   118         if (appFileName == null) {
   119             appFileName = defaultTubesConfigNames.getAppFileName();
   120         }
   122         if (defaultFileName == null) {
   123             defaultFileName = defaultTubesConfigNames.getDefaultFileName();
   124         }
   125         this.defaultConfigUrl = locateResource(defaultFileName, loaders);
   126         if (defaultConfigUrl == null) {
   127             throw LOGGER.logSevereException(new IllegalStateException(TubelineassemblyMessages.MASM_0001_DEFAULT_CFG_FILE_NOT_FOUND(defaultFileName)));
   128         }
   130         LOGGER.config(TubelineassemblyMessages.MASM_0002_DEFAULT_CFG_FILE_LOCATED(defaultFileName, defaultConfigUrl));
   131         this.defaultConfig = MetroConfigLoader.loadMetroConfig(defaultConfigUrl);
   132         if (defaultConfig == null) {
   133             throw LOGGER.logSevereException(new IllegalStateException(TubelineassemblyMessages.MASM_0003_DEFAULT_CFG_FILE_NOT_LOADED(defaultFileName)));
   134         }
   135         if (defaultConfig.getTubelines() == null) {
   136             throw LOGGER.logSevereException(new IllegalStateException(TubelineassemblyMessages.MASM_0004_NO_TUBELINES_SECTION_IN_DEFAULT_CFG_FILE(defaultFileName)));
   137         }
   138         if (defaultConfig.getTubelines().getDefault() == null) {
   139             throw LOGGER.logSevereException(new IllegalStateException(TubelineassemblyMessages.MASM_0005_NO_DEFAULT_TUBELINE_IN_DEFAULT_CFG_FILE(defaultFileName)));
   140         }
   142         this.appConfigUrl = locateResource(appFileName, loaders);
   143         if (appConfigUrl != null) {
   144             LOGGER.config(TubelineassemblyMessages.MASM_0006_APP_CFG_FILE_LOCATED(appConfigUrl));
   145             this.appConfig = MetroConfigLoader.loadMetroConfig(appConfigUrl);
   146         } else {
   147             LOGGER.config(TubelineassemblyMessages.MASM_0007_APP_CFG_FILE_NOT_FOUND());
   148             this.appConfig = null;
   149         }
   150     }
   152     TubeFactoryList getEndpointSideTubeFactories(URI endpointReference) {
   153         return getTubeFactories(endpointReference, ENDPOINT_SIDE_RESOLVER);
   154     }
   156     TubeFactoryList getClientSideTubeFactories(URI endpointReference) {
   157         return getTubeFactories(endpointReference, CLIENT_SIDE_RESOLVER);
   158     }
   160     private TubeFactoryList getTubeFactories(URI endpointReference, TubeFactoryListResolver resolver) {
   161         if (appConfig != null && appConfig.getTubelines() != null) {
   162             for (TubelineMapping mapping : appConfig.getTubelines().getTubelineMappings()) {
   163                 if (mapping.getEndpointRef().equals(endpointReference.toString())) {
   164                     TubeFactoryList list = resolver.getFactories(getTubeline(appConfig, resolveReference(mapping.getTubelineRef())));
   165                     if (list != null) {
   166                         return list;
   167                     } else {
   168                         break;
   169                     }
   170                 }
   171             }
   173             if (appConfig.getTubelines().getDefault() != null) {
   174                 TubeFactoryList list = resolver.getFactories(getTubeline(appConfig, resolveReference(appConfig.getTubelines().getDefault())));
   175                 if (list != null) {
   176                     return list;
   177                 }
   178             }
   179         }
   181         for (TubelineMapping mapping : defaultConfig.getTubelines().getTubelineMappings()) {
   182             if (mapping.getEndpointRef().equals(endpointReference.toString())) {
   183                 TubeFactoryList list = resolver.getFactories(getTubeline(defaultConfig, resolveReference(mapping.getTubelineRef())));
   184                 if (list != null) {
   185                     return list;
   186                 } else {
   187                     break;
   188                 }
   189             }
   190         }
   192         return resolver.getFactories(getTubeline(defaultConfig, resolveReference(defaultConfig.getTubelines().getDefault())));
   193     }
   195     TubelineDefinition getTubeline(MetroConfig config, URI tubelineDefinitionUri) {
   196         if (config != null && config.getTubelines() != null) {
   197             for (TubelineDefinition td : config.getTubelines().getTubelineDefinitions()) {
   198                 if (td.getName().equals(tubelineDefinitionUri.getFragment())) {
   199                     return td;
   200                 }
   201             }
   202         }
   204         return null;
   205     }
   207     private static URI resolveReference(String reference) {
   208         try {
   209             return new URI(reference);
   210         } catch (URISyntaxException ex) {
   211             throw LOGGER.logSevereException(new WebServiceException(TubelineassemblyMessages.MASM_0008_INVALID_URI_REFERENCE(reference), ex));
   212         }
   213     }
   216     private static URL locateResource(String resource, ResourceLoader loader) {
   217         if (loader == null) return null;
   219         try {
   220             return loader.getResource(resource);
   221         } catch (MalformedURLException ex) {
   222             LOGGER.severe(TubelineassemblyMessages.MASM_0009_CANNOT_FORM_VALID_URL(resource), ex);
   223         }
   224         return null;
   225     }
   227     private static URL locateResource(String resource, ResourceLoader[] loaders) {
   229         for (ResourceLoader loader : loaders) {
   230             URL url = locateResource(resource, loader);
   231             if (url != null) {
   232                 return url;
   233             }
   234         }
   235         return null;
   236     }
   238     private static MetroConfig loadMetroConfig(@NotNull URL resourceUrl) {
   239         MetroConfig result = null;
   240         try {
   241             JAXBContext jaxbContext = createJAXBContext();
   242             Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
   243             XMLInputFactory factory = XmlUtil.newXMLInputFactory(true);
   244             final JAXBElement<MetroConfig> configElement = unmarshaller.unmarshal(factory.createXMLStreamReader(resourceUrl.openStream()), MetroConfig.class);
   245             result = configElement.getValue();
   246         } catch (Exception e) {
   247             LOGGER.warning(TubelineassemblyMessages.MASM_0010_ERROR_READING_CFG_FILE_FROM_LOCATION(resourceUrl.toString()), e);
   248         }
   249         return result;
   250     }
   252     private static JAXBContext createJAXBContext() throws Exception {
   253         if (isJDKInternal()) {
   254             // since jdk classes are repackaged, extra privilege is necessary to create JAXBContext
   255             return AccessController.doPrivileged(
   256                     new PrivilegedExceptionAction<JAXBContext>() {
   257                         @Override
   258                         public JAXBContext run() throws Exception {
   259                             return JAXBContext.newInstance(MetroConfig.class.getPackage().getName());
   260                         }
   261                     }, createSecurityContext()
   262             );
   263         } else {
   264             // usage from JAX-WS/Metro/Glassfish
   265             return JAXBContext.newInstance(MetroConfig.class.getPackage().getName());
   266         }
   267     }
   269     private static AccessControlContext createSecurityContext() {
   270         PermissionCollection perms = new Permissions();
   271         perms.add(new RuntimePermission("accessClassInPackage.com" + ".sun.xml.internal.ws.runtime.config")); // avoid repackaging
   272         perms.add(new ReflectPermission("suppressAccessChecks"));
   273         return new AccessControlContext(
   274                 new ProtectionDomain[]{
   275                         new ProtectionDomain(null, perms),
   276                 });
   277     }
   279     private static boolean isJDKInternal() {
   280         // avoid "string repackaging"
   281         return MetroConfigLoader.class.getName().startsWith("com." + "sun.xml.internal.ws");
   282     }
   284     private static class MetroConfigUrlLoader extends ResourceLoader {
   286         Container container; // TODO remove the field together with the code path using it (see below)
   287         ResourceLoader parentLoader;
   289         MetroConfigUrlLoader(ResourceLoader parentLoader) {
   290             this.parentLoader = parentLoader;
   291         }
   293         MetroConfigUrlLoader(Container container) {
   294             this((container != null) ? container.getSPI(ResourceLoader.class) : null);
   295             this.container = container;
   296         }
   298         @Override
   299         public URL getResource(String resource) throws MalformedURLException {
   300             LOGGER.entering(resource);
   301             URL resourceUrl = null;
   302             try {
   303                 if (parentLoader != null) {
   304                     if (LOGGER.isLoggable(Level.FINE)) {
   305                         LOGGER.fine(TubelineassemblyMessages.MASM_0011_LOADING_RESOURCE(resource, parentLoader));
   306                     }
   308                     resourceUrl = parentLoader.getResource(resource);
   309                 }
   311                 if (resourceUrl == null) {
   312                     resourceUrl = loadViaClassLoaders("com/sun/xml/internal/ws/assembler/" + resource);
   313                 }
   315                 if (resourceUrl == null && container != null) {
   316                     // TODO: we should remove this code path, the config file should be loaded using ResourceLoader only
   317                     resourceUrl = loadFromServletContext(resource);
   318                 }
   320                 return resourceUrl;
   321             } finally {
   322                 LOGGER.exiting(resourceUrl);
   323             }
   324         }
   326         private static URL loadViaClassLoaders(final String resource) {
   327             URL resourceUrl = tryLoadFromClassLoader(resource, Thread.currentThread().getContextClassLoader());
   328             if (resourceUrl == null) {
   329                 resourceUrl = tryLoadFromClassLoader(resource, MetroConfigLoader.class.getClassLoader());
   330                 if (resourceUrl == null) {
   331                     return ClassLoader.getSystemResource(resource);
   332                 }
   333             }
   335             return resourceUrl;
   336         }
   338         private static URL tryLoadFromClassLoader(final String resource, final ClassLoader loader) {
   339             return (loader != null) ? loader.getResource(resource) : null;
   340         }
   342         private URL loadFromServletContext(String resource) throws RuntimeException {
   343             Object context = null;
   344             try {
   345                 final Class<?> contextClass = Class.forName("javax.servlet.ServletContext");
   346                 context = container.getSPI(contextClass);
   347                 if (context != null) {
   348                     if (LOGGER.isLoggable(Level.FINE)) {
   349                         LOGGER.fine(TubelineassemblyMessages.MASM_0012_LOADING_VIA_SERVLET_CONTEXT(resource, context));
   350                     }
   351                     try {
   352                         final Method method = context.getClass().getMethod("getResource", String.class);
   353                         final Object result = method.invoke(context, "/WEB-INF/" + resource);
   354                         return URL.class.cast(result);
   355                     } catch (Exception e) {
   356                         throw LOGGER.logSevereException(new RuntimeException(TubelineassemblyMessages.MASM_0013_ERROR_INVOKING_SERVLET_CONTEXT_METHOD("getResource()")), e);
   357                     }
   358                 }
   359             } catch (ClassNotFoundException e) {
   360                 if (LOGGER.isLoggable(Level.FINE)) {
   361                     LOGGER.fine(TubelineassemblyMessages.MASM_0014_UNABLE_TO_LOAD_CLASS("javax.servlet.ServletContext"));
   362                 }
   363             }
   364             return null;
   365         }
   366     }
   368 }

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