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
26package com.sun.xml.internal.bind.v2.model.impl;
27
28import java.io.IOException;
29import java.lang.reflect.Field;
30import java.lang.reflect.Method;
31import java.lang.reflect.Type;
32import java.util.EnumMap;
33import java.util.HashMap;
34import java.util.Map;
35
36import javax.xml.namespace.QName;
37import javax.xml.stream.XMLStreamException;
38
39import com.sun.xml.internal.bind.api.AccessorException;
40import com.sun.xml.internal.bind.v2.model.annotation.FieldLocatable;
41import com.sun.xml.internal.bind.v2.model.annotation.Locatable;
42import com.sun.xml.internal.bind.v2.model.runtime.RuntimeEnumLeafInfo;
43import com.sun.xml.internal.bind.v2.model.runtime.RuntimeNonElement;
44import com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationException;
45import com.sun.xml.internal.bind.v2.runtime.Name;
46import com.sun.xml.internal.bind.v2.runtime.Transducer;
47import com.sun.xml.internal.bind.v2.runtime.XMLSerializer;
48
49import org.xml.sax.SAXException;
50
51/**
52 * @author Kohsuke Kawaguchi
53 */
54final class RuntimeEnumLeafInfoImpl<T extends Enum<T>,B> extends EnumLeafInfoImpl<Type,Class,Field,Method>
55    implements RuntimeEnumLeafInfo, Transducer<T> {
56
57    public Transducer<T> getTransducer() {
58        return this;
59    }
60
61    /**
62     * {@link Transducer} that knows how to convert a lexical value
63     * into the Java value that we can handle.
64     */
65    private final Transducer<B> baseXducer;
66
67    private final Map<B,T> parseMap = new HashMap<B,T>();
68    private final Map<T,B> printMap;
69
70    RuntimeEnumLeafInfoImpl(RuntimeModelBuilder builder, Locatable upstream, Class<T> enumType) {
71        super(builder,upstream,enumType,enumType);
72        this.printMap = new EnumMap<T,B>(enumType);
73
74        baseXducer = ((RuntimeNonElement)baseType).getTransducer();
75    }
76
77    @Override
78    public RuntimeEnumConstantImpl createEnumConstant(String name, String literal, Field constant, EnumConstantImpl<Type,Class,Field,Method> last) {
79        T t;
80        try {
81            try {
82                constant.setAccessible(true);
83            } catch (SecurityException e) {
84                // in case the constant is already accessible, swallow this error.
85                // if the constant is indeed not accessible, we will get IllegalAccessException
86                // in the following line, and that is not too late.
87            }
88            t = (T)constant.get(null);
89        } catch (IllegalAccessException e) {
90            // impossible, because this is an enum constant
91            throw new IllegalAccessError(e.getMessage());
92        }
93
94        B b = null;
95        try {
96            b = baseXducer.parse(literal);
97        } catch (Exception e) {
98            builder.reportError(new IllegalAnnotationException(
99                Messages.INVALID_XML_ENUM_VALUE.format(literal,baseType.getType().toString()), e,
100                    new FieldLocatable<Field>(this,constant,nav()) ));
101        }
102
103        parseMap.put(b,t);
104        printMap.put(t,b);
105
106        return new RuntimeEnumConstantImpl(this, name, literal, last);
107    }
108
109    public QName[] getTypeNames() {
110        return new QName[]{getTypeName()};
111    }
112
113    public boolean isDefault() {
114        return false;
115    }
116
117    @Override
118    public Class getClazz() {
119        return clazz;
120    }
121
122    public boolean useNamespace() {
123        return baseXducer.useNamespace();
124    }
125
126    public void declareNamespace(T t, XMLSerializer w) throws AccessorException {
127        baseXducer.declareNamespace(printMap.get(t),w);
128    }
129
130    public CharSequence print(T t) throws AccessorException {
131        return baseXducer.print(printMap.get(t));
132    }
133
134    public T parse(CharSequence lexical) throws AccessorException, SAXException {
135        // TODO: error handling
136
137        B b = baseXducer.parse(lexical);
138
139        if (tokenStringType) {
140            b = (B) ((String)b).trim();
141        }
142
143        return parseMap.get(b);
144    }
145
146    public void writeText(XMLSerializer w, T t, String fieldName) throws IOException, SAXException, XMLStreamException, AccessorException {
147        baseXducer.writeText(w,printMap.get(t),fieldName);
148    }
149
150    public void writeLeafElement(XMLSerializer w, Name tagName, T o, String fieldName) throws IOException, SAXException, XMLStreamException, AccessorException {
151        baseXducer.writeLeafElement(w,tagName,printMap.get(o),fieldName);
152    }
153
154    public QName getTypeName(T instance) {
155        return null;
156    }
157}
158