1 /*
   2  * Copyright (c) 1997, 2012, 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.bind.v2.runtime;
  27 
  28 import java.io.IOException;
  29 
  30 import javax.xml.bind.annotation.XmlSchemaType;
  31 import javax.xml.namespace.QName;
  32 import javax.xml.stream.XMLStreamException;
  33 
  34 import com.sun.xml.internal.bind.api.AccessorException;
  35 
  36 import org.xml.sax.SAXException;
  37 
  38 /**
  39  * {@link Transducer} that signals the runtime that this datatype
  40  * is marshalled to a different XML Schema type.
  41  *
  42  * <p>
  43  * This transducer is used to implement the semantics of {@link XmlSchemaType} annotation.
  44  *
  45  *
  46  * @see XMLSerializer#schemaType
  47  * @author Kohsuke Kawaguchi
  48  */
  49 public class SchemaTypeTransducer<V> extends FilterTransducer<V> {
  50     private final QName schemaType;
  51 
  52     public SchemaTypeTransducer(Transducer<V> core, QName schemaType) {
  53         super(core);
  54         this.schemaType = schemaType;
  55     }
  56 
  57     @Override
  58     public CharSequence print(V o) throws AccessorException {
  59         XMLSerializer w = XMLSerializer.getInstance();
  60         QName old = w.setSchemaType(schemaType);
  61         try {
  62             return core.print(o);
  63         } finally {
  64             w.setSchemaType(old);
  65         }
  66     }
  67 
  68     @Override
  69     public void writeText(XMLSerializer w, V o, String fieldName) throws IOException, SAXException, XMLStreamException, AccessorException {
  70         QName old = w.setSchemaType(schemaType);
  71         try {
  72             core.writeText(w,o,fieldName);
  73         } finally {
  74             w.setSchemaType(old);
  75         }
  76     }
  77 
  78     @Override
  79     public void writeLeafElement(XMLSerializer w, Name tagName, V o, String fieldName) throws IOException, SAXException, XMLStreamException, AccessorException {
  80         QName old = w.setSchemaType(schemaType);
  81         try {
  82             core.writeLeafElement(w, tagName, o, fieldName);
  83         } finally {
  84             w.setSchemaType(old);
  85         }
  86     }
  87 }