jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/Scope.java@31893650acaf

8036981: JAXB not preserving formatting for xsd:any Mixed content
Reviewed-by: lancea, mkos

     1 /*

     2  * Copyright (c) 1997, 2014, 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.bind.v2.runtime.unmarshaller;

    28 import com.sun.xml.internal.bind.api.AccessorException;

    29 import com.sun.xml.internal.bind.v2.runtime.reflect.Accessor;

    30 import com.sun.xml.internal.bind.v2.runtime.reflect.Lister;

    32 import org.xml.sax.SAXException;

    34 /**

    35  * Holds the information about packing scope.

    36  *

    37  * <p>

    38  * When no packing is started yet, all the fields should be set to null.

    39  *

    40  * @author Kohsuke Kawaguchi

    41  */

    42 public final class Scope<BeanT,PropT,ItemT,PackT> {

    44     public final UnmarshallingContext context;

    46     private BeanT bean;

    47     private Accessor<BeanT,PropT> acc;

    48     private PackT pack;

    49     private Lister<BeanT,PropT,ItemT,PackT> lister;

    51     Scope(UnmarshallingContext context) {

    52         this.context = context;

    53     }

    55     /**

    56      * Returns true if this scope object is filled by a packing in progress.

    57      */

    58     public boolean hasStarted() {

    59         return bean!=null;

    60     }

    62     /**

    63      * Initializes all the fields to null.

    64      */

    65     public void reset() {

    66         if(bean==null) {

    67             // already initialized

    68             assert clean();

    69             return;

    70         }

    72         bean = null;

    73         acc = null;

    74         pack = null;

    75         lister = null;

    76     }

    78     /**

    79      * Finishes up the current packing in progress (if any) and

    80      * resets this object.

    81      */

    82     public void finish() throws AccessorException {

    83         if(hasStarted()) {

    84             lister.endPacking(pack,bean,acc);

    85             reset();

    86         }

    87         assert clean();

    88     }

    90     private boolean clean() {

    91         return bean==null && acc==null && pack==null && lister==null;

    92     }

    94     /**

    95      * Adds a new item to this packing scope.

    96      */

    97     public void add( Accessor<BeanT,PropT> acc, Lister<BeanT,PropT,ItemT,PackT> lister, ItemT value) throws SAXException{

    98         try {

    99             if(!hasStarted()) {

   100                 this.bean = (BeanT)context.getCurrentState().getTarget();

   101                 this.acc = acc;

   102                 this.lister = lister;

   103                 this.pack = lister.startPacking(bean,acc);

   104             }

   106             lister.addToPack(pack,value);

   107         } catch (AccessorException e) {

   108             Loader.handleGenericException(e,true);

   109             // recover from this error by ignoring future items.

   110             this.lister = Lister.getErrorInstance();

   111             this.acc = Accessor.getErrorInstance();

   112         }

   113     }

   115     /**

   116      * Starts the packing scope, without adding any item.

   117      *

   118      * This allows us to return an empty pack, thereby allowing the user

   119      * to distinguish empty array vs null array.

   120      */

   121     public void start( Accessor<BeanT,PropT> acc, Lister<BeanT,PropT,ItemT,PackT> lister) throws SAXException{

   122         try {

   123             if(!hasStarted()) {

   124                 this.bean = (BeanT)context.getCurrentState().getTarget();

   125                 this.acc = acc;

   126                 this.lister = lister;

   127                 this.pack = lister.startPacking(bean,acc);

   128             }

   129         } catch (AccessorException e) {

   130             Loader.handleGenericException(e,true);

   131             // recover from this error by ignoring future items.

   132             this.lister = Lister.getErrorInstance();

   133             this.acc = Accessor.getErrorInstance();

   134         }

   135     }

   136 }

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