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  */
  25 
  26 package com.sun.xml.internal.ws.spi.db;
  27 
  28 import java.util.Iterator;
  29 import java.util.List;
  30 import java.util.logging.Level;
  31 import java.util.logging.Logger;
  32 
  33 import javax.xml.bind.JAXBContext;
  34 import javax.xml.bind.Marshaller;
  35 
  36 
  37 import com.oracle.webservices.internal.api.databinding.DatabindingModeFeature;
  38 import com.sun.xml.internal.ws.db.glassfish.JAXBRIContextFactory;
  39 import com.sun.xml.internal.ws.util.ServiceConfigurationError;
  40 import com.sun.xml.internal.ws.util.ServiceFinder;
  41 
  42 /**
  43  * BindingContextFactory
  44  *
  45  * @author shih-chang.chen@oracle.com
  46  */
  47 abstract public class BindingContextFactory {
  48     public static final String DefaultDatabindingMode = DatabindingModeFeature.GLASSFISH_JAXB;
  49     public static final String JAXB_CONTEXT_FACTORY_PROPERTY = BindingContextFactory.class.getName();
  50     public static final Logger LOGGER = Logger.getLogger(BindingContextFactory.class.getName());
  51 
  52     // This iterator adds exception checking for proper logging.
  53     public static Iterator<BindingContextFactory> serviceIterator() {
  54         final ServiceFinder<BindingContextFactory> sf = ServiceFinder
  55                 .find(BindingContextFactory.class);
  56         final Iterator<BindingContextFactory> ibcf = sf.iterator();
  57 
  58         return new Iterator<BindingContextFactory>() {
  59             private BindingContextFactory bcf;
  60 
  61             public boolean hasNext() {
  62                 while (true) {
  63                     try {
  64                         if (ibcf.hasNext()) {
  65                             bcf = ibcf.next();
  66                             return true;
  67                         } else
  68                             return false;
  69                     } catch (ServiceConfigurationError e) {
  70                         LOGGER.warning("skipping factory: ServiceConfigurationError: "
  71                                 + e.getMessage());
  72                     } catch (NoClassDefFoundError ncdfe) {
  73                         LOGGER.fine("skipping factory: NoClassDefFoundError: "
  74                                 + ncdfe.getMessage());
  75                     }
  76                 }
  77             }
  78 
  79             public BindingContextFactory next() {
  80                 if (LOGGER.isLoggable(Level.FINER))
  81                     LOGGER.finer("SPI found provider: " +
  82                             bcf.getClass().getName());
  83                 return bcf;
  84             }
  85 
  86             public void remove() {
  87                 throw new UnsupportedOperationException();
  88             }
  89         };
  90     }
  91 
  92     static private List<BindingContextFactory> factories() {
  93         List<BindingContextFactory> factories = new java.util.ArrayList<BindingContextFactory>();
  94         Iterator<BindingContextFactory> ibcf = serviceIterator();
  95         while (ibcf.hasNext())
  96             factories.add(ibcf.next());
  97 
  98         // There should always be at least one factory available.
  99         if (factories.isEmpty()) {
 100             if (LOGGER.isLoggable(Level.FINER))
 101                 LOGGER.log(Level.FINER, "No SPI providers for BindingContextFactory found, adding: "
 102                         + JAXBRIContextFactory.class.getName());
 103             factories.add(new JAXBRIContextFactory());
 104         }
 105         return factories;
 106     }
 107 
 108         abstract protected BindingContext newContext(JAXBContext context);
 109 
 110         abstract protected BindingContext newContext(BindingInfo bi);
 111 
 112         /**
 113          * Check to see if the BindingContextFactory is for the databinding mode/flavor. The
 114          * String parameter can be the package name of the JAXBContext implementation as well.
 115          * @param databinding mode/flavor or the package name of the JAXBContext implementation.
 116          * @return
 117          */
 118         abstract protected boolean isFor(String databinding);
 119 
 120         /**
 121          * @deprecated - Does jaxws need this?
 122          */
 123         abstract protected BindingContext getContext(Marshaller m);
 124 
 125     static private BindingContextFactory getFactory(String mode) {
 126         for (BindingContextFactory f: factories()) {
 127             if (f.isFor(mode))
 128                 return f;
 129         }
 130         return null;
 131     }
 132 
 133         static public BindingContext create(JAXBContext context) throws DatabindingException {
 134                 return getJAXBFactory(context).newContext(context);
 135         }
 136 
 137     static public BindingContext create(BindingInfo bi) {
 138         // Any mode configured in AbstractSEIModelImpl trumps all.
 139         // System property comes next, then SPI-located.
 140         String mode = bi.getDatabindingMode();
 141         if (mode != null) {
 142             if (LOGGER.isLoggable(Level.FINE))
 143                 LOGGER.log(Level.FINE, "Using SEI-configured databindng mode: "
 144                         + mode);
 145         } else if ((mode = System.getProperty("BindingContextFactory")) != null) {
 146             // The following is left for backward compatibility and should
 147             // eventually be removed.
 148             bi.setDatabindingMode(mode);
 149             if (LOGGER.isLoggable(Level.FINE))
 150                 LOGGER.log(Level.FINE, "Using databindng: " + mode
 151                         + " based on 'BindingContextFactory' System property");
 152         } else if ((mode = System.getProperty(JAXB_CONTEXT_FACTORY_PROPERTY)) != null) {
 153             bi.setDatabindingMode(mode);
 154             if (LOGGER.isLoggable(Level.FINE))
 155                 LOGGER.log(Level.FINE, "Using databindng: " + mode
 156                         + " based on '" + JAXB_CONTEXT_FACTORY_PROPERTY
 157                         + "' System property");
 158         } else {
 159             // Find a default provider.  Note we always ensure the list
 160             // is always non-empty.
 161             for (BindingContextFactory factory : factories()) {
 162                 if (LOGGER.isLoggable(Level.FINE))
 163                     LOGGER.log(Level.FINE,
 164                             "Using SPI-determined databindng mode: "
 165                                     + factory.getClass().getName());
 166                 // Special case: no name lookup used.
 167                 return factory.newContext(bi);
 168             }
 169 
 170             // Should never get here as the list is non-empty.
 171             LOGGER.log(Level.SEVERE, "No Binding Context Factories found.");
 172             throw new DatabindingException("No Binding Context Factories found.");
 173         }
 174         BindingContextFactory f = getFactory(mode);
 175         if (f != null)
 176             return f.newContext(bi);
 177         LOGGER.severe("Unknown Databinding mode: " + mode);
 178         throw new DatabindingException("Unknown Databinding mode: " + mode);
 179     }
 180 
 181         static public boolean isContextSupported(Object o) {
 182             if (o == null) return false;
 183                 String pkgName = o.getClass().getPackage().getName();
 184                 for (BindingContextFactory f: factories()) if (f.isFor(pkgName)) return true;
 185                 return false;
 186         }
 187 
 188         static BindingContextFactory getJAXBFactory(Object o) {
 189                 String pkgName = o.getClass().getPackage().getName();
 190                 BindingContextFactory f = getFactory(pkgName);
 191                 if (f != null) return f;
 192                 throw new DatabindingException("Unknown JAXBContext implementation: " + o.getClass());
 193 
 194         }
 195 
 196         /**
 197          * @deprecated - Does jaxws need this?
 198          */
 199         static public BindingContext getBindingContext(Marshaller m) {
 200                 return getJAXBFactory(m).getContext(m);
 201         }
 202 
 203     /**
 204      * Creates a new {@link BindingContext}.
 205      *
 206      * <p>
 207      * {@link JAXBContext#newInstance(Class[]) JAXBContext.newInstance()} methods may
 208      * return other JAXB providers that are not compatible with the JAX-RPC RI.
 209      * This method guarantees that the JAX-WS RI will finds the JAXB RI.
 210      *
 211      * @param classes
 212      *      Classes to be bound. See {@link JAXBContext#newInstance(Class[])} for the meaning.
 213      * @param typeRefs
 214      *      See {@link #TYPE_REFERENCES} for the meaning of this parameter.
 215      *      Can be null.
 216      * @param subclassReplacements
 217      *      See {@link #SUBCLASS_REPLACEMENTS} for the meaning of this parameter.
 218      *      Can be null.
 219      * @param defaultNamespaceRemap
 220      *      See {@link #DEFAULT_NAMESPACE_REMAP} for the meaning of this parameter.
 221      *      Can be null (and should be null for ordinary use of JAXB.)
 222      * @param c14nSupport
 223      *      See {@link #CANONICALIZATION_SUPPORT} for the meaning of this parameter.
 224      * @param ar
 225      *      See {@link #ANNOTATION_READER} for the meaning of this parameter.
 226      *      Can be null.
 227      * @since JAXB 2.1 EA2
 228      */
 229 //    public static BindingContext newInstance(@NotNull Class[] classes,
 230 //       @Nullable Collection<TypeInfo> typeRefs,
 231 //       @Nullable Map<Class,Class> subclassReplacements,
 232 //       @Nullable String defaultNamespaceRemap, boolean c14nSupport,
 233 //       @Nullable RuntimeAnnotationReader ar) throws JAXBException {
 234 //        return ContextFactory.createContext(classes, typeRefs, subclassReplacements,
 235 //                defaultNamespaceRemap, c14nSupport, ar, false, false, false);
 236 //    }
 237 //
 238 //    /**
 239 //     * @deprecated
 240 //     *      Compatibility with older versions.
 241 //     */
 242 //    public static BindingContext newInstance(@NotNull Class[] classes,
 243 //        @Nullable Collection<TypeInfo> typeRefs,
 244 //        @Nullable String defaultNamespaceRemap, boolean c14nSupport ) throws JAXBException {
 245 //        return newInstance(classes,typeRefs, Collections.<Class,Class>emptyMap(),
 246 //                defaultNamespaceRemap,c14nSupport,null);
 247 //    }
 248 }